Typos

.gitea/workflows/docker.yml

@@ -0,0 +1,30 @@
+name: Docker
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Gitea container registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.betalupi.com
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.DEPLOY_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: git.betalupi.com/mark/pile:latest
+          cache-from: type=registry,ref=git.betalupi.com/mark/pile:cache
+          cache-to: type=registry,ref=git.betalupi.com/mark/pile:cache,mode=max

Cargo.toml

@@ -57,6 +57,7 @@ unimplemented = "deny"
 unwrap_used = "warn"
 expect_used = "warn"
 type_complexity = "allow"
+len_without_is_empty = "allow"
 
 #
 # MARK: dependencies
@@ -68,9 +69,13 @@ pile-config = { path = "crates/pile-config" }
 pile-flac = { path = "crates/pile-flac" }
 pile-dataset = { path = "crates/pile-dataset" }
 pile-value = { path = "crates/pile-value" }
+pile-io = { path = "crates/pile-io" }
+pile-client = { path = "crates/pile-client" }
+pile-serve = { path = "crates/pile-serve" }
 
-# Clients & servers
+# MARK: Clients & servers
 tantivy = "0.25.0"
+servable = { version = "0.0.7", features = ["image"] }
 axum = { version = "0.8.8", features = ["macros", "multipart"] }
 utoipa = { version = "5.4.0", features = [
 	"axum_extras",
@@ -83,15 +88,15 @@ utoipa-swagger-ui = { version = "9.0.2", features = [
 	"debug-embed",
 	"vendored",
 ] }
+reqwest = { version = "0.12", features = ["blocking", "json", "stream"] }
+tracing-loki = "0.2.6"
 
-# Async & Parallelism
+# MARK: Async & Parallelism
 tokio = { version = "1.49.0", features = ["full"] }
 tokio-stream = "0.1"
 async-trait = "0.1"
-aws-sdk-s3 = "1"
-aws-config = "1"
 
-# CLI & logging
+# MARK: CLI & logging
 tracing = "0.1.44"
 tracing-subscriber = { version = "0.3.22", features = ["env-filter", "json"] }
 indicatif = { version = "0.18.4", features = ["improved_unicode"] }
@@ -99,16 +104,21 @@ tracing-indicatif = "0.3.14"
 anstyle = "1.0.13"
 clap = { version = "4.5.60", features = ["derive"] }
 
-# Serialization & formats
+# MARK: Serialization & formats
 serde = { version = "1.0.228", features = ["derive"] }
 serde_json = "1.0.149"
 base64 = "0.22.1"
+bytes = "1"
 toml = "1.0.3"
 toml_edit = "0.25.4"
 sha2 = "0.11.0-rc.5"
+sha1 = "0.10"
+md5 = "0.7"
 blake3 = "1.8.3"
+dotenvy = "0.15.7"
+envy = "0.4.2"
 
-# Extractors
+# MARK: Extractors
 pdf = "0.10.0"
 id3 = "1.16.4"
 epub = "1.2.2"
@@ -116,7 +126,7 @@ kamadak-exif = "0.6.1"
 pdfium-render = "0.8"
 image = { version = "0.25", default-features = false, features = ["png"] }
 
-# Misc helpers
+# MARK: Misc helpers
 thiserror = "2.0.18"
 anyhow = "1.0.102"
 itertools = "0.14.0"
@@ -127,6 +137,9 @@ mime = "0.3.17"
 mime_guess = "2.0.5"
 paste = "1.0.15"
 smartstring = "1.0.1"
+regex = "1"
 chrono = "0.4.43"
 parking_lot = "0.12.5"
 rayon = "1.11.0"
+percent-encoding = "2"
+url = { version = "2.5.8", features = ["serde"] }

Dockerfile

@@ -0,0 +1,38 @@
+FROM rust:1.94-bookworm AS base
+
+#
+# MARK: Build
+#
+FROM base AS build
+
+RUN apt-get update && \
+	apt-get install -y --no-install-recommends \
+	ca-certificates wget unzip \
+	&& rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app/rust
+COPY . .
+RUN cargo build --release --workspace
+RUN cargo test --release --workspace
+
+#
+# MARK: Release
+#
+FROM debian:bookworm AS deploy
+
+WORKDIR /app
+
+RUN apt-get update && \
+	apt-get install -y --no-install-recommends \
+	ca-certificates \
+	&& rm -rf /var/lib/apt/lists/*
+
+COPY --from=build \
+	/app/rust/target/release/pile \
+	/app/rust/target/release/libpdfium.so \
+	/app/bin/
+
+ENV PATH="/app/bin:$PATH"
+ENV RUST_BACKTRACE=full
+
+ENTRYPOINT [""]

crates/pile-client/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "pile-client"
+version = { workspace = true }
+rust-version = { workspace = true }
+edition = { workspace = true }
+
+[lints]
+workspace = true
+
+[dependencies]
+pile-serve = { workspace = true }
+
+reqwest = { workspace = true }
+serde = { workspace = true }
+thiserror = { workspace = true }
+bytes = { workspace = true }
+axum = { workspace = true }
+tracing = { workspace = true }

crates/pile-client/src/lib.rs

@@ -0,0 +1,339 @@
+use axum::{
+	Router, body::Body as AxumBody, extract::State, response::Response as AxumResponse,
+	routing::any,
+};
+use bytes::Bytes;
+use reqwest::{Client, StatusCode, header};
+use serde::Deserialize;
+use thiserror::Error;
+use tracing::{trace, warn};
+
+pub use pile_serve::{
+	ApiValue, FieldSpec, FieldsResponse, ItemsResponse, LookupRequest, LookupResponse,
+	SchemaResponse,
+};
+
+#[derive(Debug, Error)]
+pub enum ClientError {
+	#[error("invalid bearer token")]
+	InvalidToken,
+
+	#[error("HTTP {status}: {body}")]
+	Http { status: StatusCode, body: String },
+
+	#[error(transparent)]
+	Reqwest(#[from] reqwest::Error),
+}
+
+#[derive(Debug, Deserialize)]
+pub struct DatasetInfo {
+	pub name: String,
+}
+
+/// Raw field response: the content-type and body bytes as returned by the server.
+pub struct FieldResponse {
+	pub content_type: String,
+	pub data: Bytes,
+}
+
+//
+// MARK: PileClient
+//
+
+/// A client for a pile server. Use [`PileClient::dataset`] to get a dataset-scoped client.
+pub struct PileClient {
+	base_url: String,
+	client: Client,
+	token: Option<String>,
+}
+
+impl PileClient {
+	pub fn new(base_url: impl Into<String>, token: Option<&str>) -> Result<Self, ClientError> {
+		let mut headers = header::HeaderMap::new();
+
+		if let Some(token) = token {
+			let value = header::HeaderValue::from_str(&format!("Bearer {token}"))
+				.map_err(|_| ClientError::InvalidToken)?;
+			headers.insert(header::AUTHORIZATION, value);
+		}
+
+		let client = Client::builder()
+			.default_headers(headers)
+			.build()
+			.map_err(ClientError::Reqwest)?;
+
+		Ok(Self {
+			base_url: base_url.into(),
+			client,
+			token: token.map(str::to_owned),
+		})
+	}
+
+	/// Returns a client scoped to a specific dataset (i.e. `/{name}/...`).
+	pub fn dataset(&self, name: &str) -> DatasetClient {
+		DatasetClient {
+			base_url: format!("{}/{name}", self.base_url),
+			client: self.client.clone(),
+			token: self.token.clone(),
+		}
+	}
+
+	/// `GET /datasets` — list all datasets served by this server.
+	pub async fn list_datasets(&self) -> Result<Vec<DatasetInfo>, ClientError> {
+		let url = format!("{}/datasets", self.base_url);
+		trace!(url, "GET /datasets");
+		let resp = self.client.get(url).send().await?;
+
+		check_status(resp).await?.json().await.map_err(Into::into)
+	}
+}
+
+//
+// MARK: DatasetClient
+//
+
+/// A client scoped to a single dataset on the server.
+pub struct DatasetClient {
+	base_url: String,
+	client: Client,
+	token: Option<String>,
+}
+
+impl DatasetClient {
+	/// `POST /lookup` — full-text search within this dataset.
+	pub async fn lookup(
+		&self,
+		query: impl Into<String>,
+		limit: Option<usize>,
+	) -> Result<LookupResponse, ClientError> {
+		let body = LookupRequest {
+			query: query.into(),
+			limit,
+		};
+
+		let url = format!("{}/lookup", self.base_url);
+		trace!(url, "POST /lookup");
+		let resp = self.client.post(url).json(&body).send().await?;
+
+		check_status(resp).await?.json().await.map_err(Into::into)
+	}
+
+	/// `GET /extract` — extract a field from an item by object path (e.g. `$.flac.title`).
+	pub async fn get_extract(
+		&self,
+		source: &str,
+		key: &str,
+		path: &str,
+	) -> Result<FieldResponse, ClientError> {
+		let url = format!("{}/extract", self.base_url);
+		trace!(url, source, key, path, "GET /extract");
+		let resp = self
+			.client
+			.get(url)
+			.query(&[("source", source), ("key", key), ("path", path)])
+			.send()
+			.await?;
+
+		let resp = check_status(resp).await?;
+
+		let content_type = resp
+			.headers()
+			.get(header::CONTENT_TYPE)
+			.and_then(|v| v.to_str().ok())
+			.unwrap_or("application/octet-stream")
+			.to_owned();
+
+		let data = resp.bytes().await?;
+
+		Ok(FieldResponse { content_type, data })
+	}
+
+	/// `GET /schema/{field}` — get a single schema field value from an item.
+	pub async fn schema_field(
+		&self,
+		source: &str,
+		key: &str,
+		field: &str,
+	) -> Result<FieldResponse, ClientError> {
+		let url = format!("{}/schema/{field}", self.base_url);
+		trace!(url, source, key, field, "GET /schema/{field}");
+		let resp = self
+			.client
+			.get(url)
+			.query(&[("source", source), ("key", key)])
+			.send()
+			.await?;
+
+		let resp = check_status(resp).await?;
+
+		let content_type = resp
+			.headers()
+			.get(header::CONTENT_TYPE)
+			.and_then(|v| v.to_str().ok())
+			.unwrap_or("application/octet-stream")
+			.to_owned();
+
+		let data = resp.bytes().await?;
+
+		Ok(FieldResponse { content_type, data })
+	}
+
+	/// `GET /schema` — get all schema field values for a single item.
+	pub async fn schema(
+		&self,
+		source: &str,
+		key: &str,
+		hidden: bool,
+	) -> Result<SchemaResponse, ClientError> {
+		let url = format!("{}/schema", self.base_url);
+		trace!(url, source, key, hidden, "GET /schema");
+		let resp = self
+			.client
+			.get(url)
+			.query(&[("source", source), ("key", key)])
+			.query(&[("hidden", hidden)])
+			.send()
+			.await?;
+		check_status(resp).await?.json().await.map_err(Into::into)
+	}
+
+	/// `GET /config/schema` — retrieve this dataset's schema spec.
+	pub async fn config_schema(&self) -> Result<FieldsResponse, ClientError> {
+		let url = format!("{}/config/schema", self.base_url);
+		trace!(url, "GET /config/schema");
+		let resp = self.client.get(url).send().await?;
+		check_status(resp).await?.json().await.map_err(Into::into)
+	}
+
+	/// `GET /items` — paginate over all items in this dataset, ordered by (source, key).
+	pub async fn list_items(
+		&self,
+		offset: usize,
+		limit: usize,
+	) -> Result<ItemsResponse, ClientError> {
+		let url = format!("{}/items", self.base_url);
+		trace!(url, offset, limit, "GET /items");
+		let resp = self
+			.client
+			.get(url)
+			.query(&[("offset", offset), ("limit", limit)])
+			.send()
+			.await?;
+
+		check_status(resp).await?.json().await.map_err(Into::into)
+	}
+
+	/// Returns an axum [`Router`] that proxies all requests to this dataset's
+	/// endpoints on the remote pile server, streaming responses without buffering.
+	/// All headers are forwarded; hop-by-hop headers are stripped.
+	pub fn proxy_router(&self) -> Router {
+		let state = ProxyState {
+			base_url: self.base_url.clone(),
+			client: self.client.clone(),
+			token: self.token.clone(),
+		};
+		Router::new()
+			.route("/", any(proxy_handler))
+			.route("/{*path}", any(proxy_handler))
+			.with_state(state)
+	}
+}
+
+//
+// MARK: Proxy
+//
+
+#[derive(Clone)]
+struct ProxyState {
+	base_url: String,
+	client: Client,
+	token: Option<String>,
+}
+
+async fn proxy_handler(
+	State(state): State<ProxyState>,
+	req: axum::extract::Request,
+) -> AxumResponse {
+	let path = req.uri().path().to_owned();
+	let query_str = req
+		.uri()
+		.query()
+		.map(|q| format!("?{q}"))
+		.unwrap_or_default();
+	let method = req.method().clone();
+
+	let url = format!("{}{}{}", state.base_url, path, query_str);
+	trace!(method = %method, url, "proxying request");
+	let mut req_builder = state.client.request(method, &url);
+
+	// Forward all request headers except hop-by-hop and Host.
+	// Authorization is skipped so the client's default bearer token is used.
+	for (name, value) in req.headers() {
+		if !is_hop_by_hop(name) && name != header::HOST && name != header::AUTHORIZATION {
+			req_builder = req_builder.header(name, value);
+		}
+	}
+
+	// Attach bearer token if present (overrides client default for clarity).
+	if let Some(ref token) = state.token
+		&& let Ok(value) = header::HeaderValue::from_str(&format!("Bearer {token}"))
+	{
+		req_builder = req_builder.header(header::AUTHORIZATION, value);
+	}
+
+	// Stream the request body upstream.
+	let body_stream = req.into_body().into_data_stream();
+	req_builder = req_builder.body(reqwest::Body::wrap_stream(body_stream));
+
+	let upstream = match req_builder.send().await {
+		Ok(r) => r,
+		Err(e) => {
+			warn!(error = %e, "upstream request failed");
+			return AxumResponse::builder()
+				.status(StatusCode::BAD_GATEWAY.as_u16())
+				.body(AxumBody::from(e.to_string()))
+				.unwrap_or_else(|_| AxumResponse::new(AxumBody::empty()));
+		}
+	};
+
+	let status = upstream.status().as_u16();
+	trace!(status, "upstream response");
+	let resp_headers = upstream.headers().clone();
+
+	let mut builder = AxumResponse::builder().status(status);
+	for (name, value) in &resp_headers {
+		if !is_hop_by_hop(name) {
+			builder = builder.header(name, value);
+		}
+	}
+
+	// Stream the response body without buffering.
+	builder
+		.body(AxumBody::from_stream(upstream.bytes_stream()))
+		.unwrap_or_else(|_| AxumResponse::new(AxumBody::empty()))
+}
+
+fn is_hop_by_hop(name: &header::HeaderName) -> bool {
+	name == header::CONNECTION
+		|| name == header::TRANSFER_ENCODING
+		|| name == header::TE
+		|| name == header::UPGRADE
+		|| name == header::PROXY_AUTHORIZATION
+		|| name == header::PROXY_AUTHENTICATE
+		|| name.as_str() == "keep-alive"
+		|| name.as_str() == "trailers"
+}
+
+//
+// MARK: helpers
+//
+
+async fn check_status(resp: reqwest::Response) -> Result<reqwest::Response, ClientError> {
+	let status = resp.status();
+	if status.is_success() {
+		return Ok(resp);
+	}
+
+	let body = resp.text().await.unwrap_or_default();
+	Err(ClientError::Http { status, body })
+}

crates/pile-config/src/lib.rs

@@ -1,12 +1,13 @@
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 use std::{collections::HashMap, fmt::Debug, path::PathBuf};
 
+use crate::objectpath::ObjectPath;
+
 mod misc;
 pub use misc::*;
 
-use crate::objectpath::ObjectPath;
-
 pub mod objectpath;
+pub mod pattern;
 
 pub static INIT_DB_TOML: &str = include_str!("./config.toml");
 
@@ -14,6 +15,15 @@ fn default_true() -> bool {
 	true
 }
 
+pub fn default_base() -> String {
+	"(.*)".to_owned()
+}
+
+#[expect(clippy::unwrap_used)]
+pub fn default_files() -> HashMap<Label, String> {
+	[(Label::new("item").unwrap(), "{base}".to_owned())].into()
+}
+
 #[test]
 #[expect(clippy::expect_used)]
 fn init_db_toml_valid() {
@@ -32,53 +42,35 @@ pub struct DatasetConfig {
 	/// Must be unique
 	pub name: Label,
 
-	/// Root dir for indices
-	pub working_dir: Option<PathBuf>,
-
 	/// Where to find this field
 	pub source: HashMap<Label, Source>,
 }
 
-#[derive(Debug, Clone, Deserialize)]
-pub struct S3Credentials {
-	pub access_key_id: String,
-	pub secret_access_key: String,
-}
-
 #[derive(Debug, Clone, Deserialize)]
 #[serde(tag = "type")]
 #[serde(rename_all = "lowercase")]
 pub enum Source {
 	/// A directory of files
 	Filesystem {
+		/// If false, ignore this dataset
+		#[serde(default = "default_true")]
+		enabled: bool,
+
 		/// The directories to scan.
 		/// Must be relative.
 		path: PathBuf,
 
-		/// If true, all toml files are ignored.
-		/// Metadata can be added to any file using a {filename}.toml.
-		///
-		/// If false, toml files are treated as regular files
-		/// and sidecar metadata is disabled.
-		#[serde(default = "default_true")]
-		sidecars: bool,
-	},
+		/// Regex that extracts an item key from a file path.
+		/// - File paths are relative to `path`.
+		/// - The first group in this regex is the file's item key.
+		#[serde(default = "default_base")]
+		base_pattern: String,
 
-	/// An S3-compatible object store bucket
-	S3 {
-		bucket: String,
-		prefix: Option<String>,
-
-		/// Custom endpoint URL (for MinIO, etc.)
-		endpoint: Option<String>,
-
-		region: String,
-
-		credentials: S3Credentials,
-
-		/// If true, all .toml objects are treated as sidecar metadata files.
-		#[serde(default = "default_true")]
-		sidecars: bool,
+		/// Map of files included in each item.'
+		/// `{base}` is replaced with the string extracted by base_pattern.
+		/// Default is `{ item: "{base}" }`
+		#[serde(default = "default_files")]
+		files: HashMap<Label, String>,
 	},
 }
 
@@ -86,21 +78,18 @@ pub enum Source {
 // MARK: schema
 //
 
-#[derive(Debug, Clone, Deserialize)]
+#[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct FieldSpec {
-	/// The type of this field
-	pub r#type: FieldType,
+	/// If true, do not display this field.
+	/// This attribute has no effect on pile, it
+	/// is intended for consumers of data.
+	#[serde(default)]
+	pub hidden: bool,
 
 	/// How to find this field in a data entry
 	pub path: Vec<ObjectPath>,
 }
 
-#[derive(Debug, Clone, Copy, Deserialize, PartialEq, Eq)]
-#[serde(rename_all = "lowercase")]
-pub enum FieldType {
-	Text,
-}
-
 //
 // MARK: fts
 //

crates/pile-config/src/objectpath/mod.rs

@@ -1,7 +1,7 @@
 use std::{fmt, str::FromStr};
 
 use serde::{
-	Deserialize, Deserializer,
+	Deserialize, Deserializer, Serialize, Serializer,
 	de::{self, Visitor},
 };
 use smartstring::{LazyCompact, SmartString};
@@ -49,6 +49,13 @@ pub enum PathSegment {
 
 	/// Go to an element of the current list
 	Index(i64),
+
+	/// Go to a slice of the current list
+	Range {
+		start: i64,
+		end: i64,
+		inclusive: bool,
+	},
 }
 
 /// A path to aPathSegment::Field inside a nested object,
@@ -58,11 +65,44 @@ pub enum PathSegment {
 /// - `$` refers to the root object
 /// - `.<name>` selects aPathSegment::Field of an object
 /// - `[n]` selects an item of an array
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct ObjectPath {
 	pub segments: Vec<PathSegment>,
 }
 
+impl fmt::Display for ObjectPath {
+	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+		for seg in &self.segments {
+			match seg {
+				PathSegment::Root => write!(f, "$")?,
+				PathSegment::Field { name, args: None } => write!(f, ".{name}")?,
+				PathSegment::Field {
+					name,
+					args: Some(a),
+				} => write!(f, ".{name}({a})")?,
+				PathSegment::Index(i) => write!(f, "[{i}]")?,
+				PathSegment::Range {
+					start,
+					end,
+					inclusive: false,
+				} => write!(f, "[{start}..{end}]")?,
+				PathSegment::Range {
+					start,
+					end,
+					inclusive: true,
+				} => write!(f, "[{start}..={end}]")?,
+			}
+		}
+		Ok(())
+	}
+}
+
+impl Serialize for ObjectPath {
+	fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+		serializer.serialize_str(&self.to_string())
+	}
+}
+
 impl<'de> Deserialize<'de> for ObjectPath {
 	fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
 		struct PathVisitor;

crates/pile-config/src/objectpath/parser.rs

@@ -87,6 +87,15 @@ enum State {
 	/// We are indexing an array, waiting for a number
 	Index,
 
+	/// We parsed the start index, waiting for `]` or the first `.` of `..`
+	IndexAfterStart(i64),
+
+	/// We saw one `.` after the start index, waiting for the second `.`
+	IndexRangeDot1(i64),
+
+	/// We saw `..`, waiting for the end index (optionally prefixed with `=`)
+	IndexRangeDot2(i64),
+
 	/// We are indexing an array, waiting for a close-bracket
 	IndexClose,
 }
@@ -164,8 +173,7 @@ impl Parser {
 						}
 					})?;
 
-					self.segments.push(PathSegment::Index(idx));
-					self.state = State::IndexClose;
+					self.state = State::IndexAfterStart(idx);
 				}
 
 				(State::Index, (p, Token::Root))
@@ -175,6 +183,49 @@ impl Parser {
 					return Err(PathParseError::Syntax { position: *p });
 				}
 
+				(State::IndexAfterStart(idx), (_, Token::SqbClose)) => {
+					self.segments.push(PathSegment::Index(idx));
+					self.state = State::Selected;
+				}
+				(State::IndexAfterStart(idx), (_, Token::Dot)) => {
+					self.state = State::IndexRangeDot1(idx);
+				}
+				(State::IndexAfterStart(_), (p, _)) => {
+					return Err(PathParseError::Syntax { position: *p });
+				}
+
+				(State::IndexRangeDot1(idx), (_, Token::Dot)) => {
+					self.state = State::IndexRangeDot2(idx);
+				}
+				(State::IndexRangeDot1(_), (p, _)) => {
+					return Err(PathParseError::Syntax { position: *p });
+				}
+
+				(State::IndexRangeDot2(start), (p, Token::Ident(ident))) => {
+					let (end_str, inclusive) = if let Some(stripped) = ident.strip_prefix('=') {
+						(stripped, true)
+					} else {
+						(*ident, false)
+					};
+
+					let end: i64 = i64::from_str(end_str).map_err(|_err| {
+						PathParseError::InvalidIndexString {
+							position: *p,
+							str: (*ident).into(),
+						}
+					})?;
+
+					self.segments.push(PathSegment::Range {
+						start,
+						end,
+						inclusive,
+					});
+					self.state = State::IndexClose;
+				}
+				(State::IndexRangeDot2(_), (p, _)) => {
+					return Err(PathParseError::Syntax { position: *p });
+				}
+
 				(State::IndexClose, (_, Token::SqbClose)) => self.state = State::Selected,
 				(State::IndexClose, (p, _)) => {
 					return Err(PathParseError::Syntax { position: *p });
@@ -187,6 +238,9 @@ impl Parser {
 			State::Start => Err(PathParseError::Syntax { position: 0 }),
 			State::Dot => Err(PathParseError::Syntax { position }),
 			State::Index => Err(PathParseError::Syntax { position }),
+			State::IndexAfterStart(_) => Err(PathParseError::Syntax { position }),
+			State::IndexRangeDot1(_) => Err(PathParseError::Syntax { position }),
+			State::IndexRangeDot2(_) => Err(PathParseError::Syntax { position }),
 			State::IndexClose => Err(PathParseError::Syntax { position }),
 			State::Selected => Ok(()),
 		}?;
@@ -387,4 +441,46 @@ mod tests {
 			}),
 		);
 	}
+
+	// MARK: range
+
+	fn range(start: i64, end: i64, inclusive: bool) -> PathSegment {
+		PathSegment::Range {
+			start,
+			end,
+			inclusive,
+		}
+	}
+
+	#[test]
+	fn exclusive_range() {
+		parse_test(
+			"$.a[0..5]",
+			Ok(&[PathSegment::Root, field("a"), range(0, 5, false)]),
+		);
+	}
+
+	#[test]
+	fn inclusive_range() {
+		parse_test(
+			"$.a[1..=2]",
+			Ok(&[PathSegment::Root, field("a"), range(1, 2, true)]),
+		);
+	}
+
+	#[test]
+	fn range_with_negative_end() {
+		parse_test(
+			"$.a[0..-1]",
+			Ok(&[PathSegment::Root, field("a"), range(0, -1, false)]),
+		);
+	}
+
+	#[test]
+	fn range_with_negative_start() {
+		parse_test(
+			"$.a[-3..-1]",
+			Ok(&[PathSegment::Root, field("a"), range(-3, -1, false)]),
+		);
+	}
 }

crates/pile-config/src/objectpath/tokenizer.rs

@@ -21,7 +21,52 @@ impl Tokenizer {
 		let mut tokens = Vec::new();
 
 		let mut window_start = None;
+		// Paren depth: while > 0, `.` / `[` / `]` / `$` are part of the ident.
+		let mut paren_depth: usize = 0;
+		// When true, the current char is escaped by a preceding `\` and is
+		// treated as a plain ident character with no special meaning.
+		let mut skip_next = false;
+
 		for (i, c) in source.char_indices() {
+			if skip_next {
+				skip_next = false;
+				// Escaped char: just extend the ident window (already opened by `\`).
+				continue;
+			}
+
+			if c == '\\' {
+				if window_start.is_none() {
+					window_start = Some(i);
+				}
+				skip_next = true;
+				continue;
+			}
+
+			if paren_depth > 0 {
+				// Inside parens: only track depth changes, everything else is ident.
+				match c {
+					'(' => {
+						if window_start.is_none() {
+							window_start = Some(i);
+						}
+						paren_depth += 1;
+					}
+					')' => {
+						if window_start.is_none() {
+							window_start = Some(i);
+						}
+						paren_depth -= 1;
+					}
+					x if x.is_ascii() => {
+						if window_start.is_none() {
+							window_start = Some(i);
+						}
+					}
+					char => return Err(PathParseError::NonAsciiChar { position: i, char }),
+				}
+				continue;
+			}
+
 			match c {
 				'$' => {
 					if let Some(s) = window_start.take() {
@@ -51,10 +96,26 @@ impl Tokenizer {
 					tokens.push((i, Token::SqbClose));
 				}
 
-				x if x.is_ascii() => match window_start {
-					None => window_start = Some(i),
-					Some(_) => continue,
-				},
+				'(' => {
+					if window_start.is_none() {
+						window_start = Some(i);
+					}
+					paren_depth += 1;
+				}
+
+				')' => {
+					if window_start.is_none() {
+						window_start = Some(i);
+					}
+					// paren_depth is 0 here — stray `)` is an ident char and
+					// parse_field will surface the error later.
+				}
+
+				x if x.is_ascii() => {
+					if window_start.is_none() {
+						window_start = Some(i);
+					}
+				}
 
 				char => return Err(PathParseError::NonAsciiChar { position: i, char }),
 			}

crates/pile-config/src/pattern/mod.rs

@@ -0,0 +1,49 @@
+use std::collections::HashMap;
+
+use serde::{Deserialize, Deserializer, de};
+use smartstring::{LazyCompact, SmartString};
+use thiserror::Error;
+
+use crate::{Label, objectpath::PathParseError as ObjectPathError};
+
+mod parser;
+pub use parser::GroupSegment;
+
+#[derive(Debug, Error, PartialEq)]
+pub enum GroupPatternParseError {
+	/// A `{` or `}` appeared in an invalid position, or a `{` was never closed.
+	#[error("syntax error at index {position}")]
+	Syntax { position: usize },
+
+	/// The contents of a `{...}` block could not be parsed as an object path.
+	#[error("invalid object path {path:?}: {source}")]
+	InvalidObjectPath {
+		start: usize,
+		end: usize,
+		path: SmartString<LazyCompact>,
+		source: ObjectPathError,
+	},
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct GroupPattern {
+	pub pattern: HashMap<Label, Vec<GroupSegment>>,
+}
+
+impl<'de> Deserialize<'de> for GroupPattern {
+	fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+		let raw = HashMap::<String, String>::deserialize(deserializer)?;
+		let mut parts = HashMap::with_capacity(raw.len());
+		for (key, value) in raw {
+			let label = Label::try_from(key.as_str()).map_err(de::Error::custom)?;
+			let segments = parser::Parser::new()
+				.parse(&value)
+				.map_err(de::Error::custom)?
+				.into_iter()
+				.map(|(_, seg)| seg)
+				.collect();
+			parts.insert(label, segments);
+		}
+		Ok(GroupPattern { pattern: parts })
+	}
+}

crates/pile-config/src/pattern/parser.rs

@@ -0,0 +1,203 @@
+use smartstring::{LazyCompact, SmartString};
+
+use crate::{objectpath::ObjectPath, pattern::GroupPatternParseError};
+
+#[cfg_attr(test, derive(PartialEq))]
+#[derive(Debug, Clone)]
+pub enum GroupSegment {
+	Path(ObjectPath),
+	Literal(SmartString<LazyCompact>),
+}
+
+pub struct Parser {}
+
+impl Parser {
+	pub fn new() -> Self {
+		Self {}
+	}
+
+	/// Parse a pattern string of the form `{path}.literal{path}...`.
+	///
+	/// - `{...}` delimiters are parsed as [`ObjectPath`] expressions.
+	///   Nested `{}` inside a path are allowed; depth is tracked to find the
+	///   matching closing brace.
+	/// - Everything outside `{...}` is a `Literal` segment.
+	/// - A bare `}` in literal position (depth == 0) is a syntax error.
+	/// - An unclosed `{` is a syntax error.
+	pub fn parse(self, source: &str) -> Result<Vec<(usize, GroupSegment)>, GroupPatternParseError> {
+		let mut tokens = Vec::new();
+
+		// `depth` > 0 means we are currently inside a `{...}` path expression.
+		let mut depth: usize = 0;
+		// Start of the current segment (literal text or path content).
+		let mut window_start: usize = 0;
+		// Source position of the opening `{` for the current path (used for error reporting).
+		let mut open_brace: usize = 0;
+
+		for (i, c) in source.char_indices() {
+			match c {
+				'{' => {
+					if depth == 0 {
+						// Emit any accumulated literal.
+						if i > window_start {
+							tokens.push((
+								window_start,
+								GroupSegment::Literal(source[window_start..i].into()),
+							));
+						}
+						open_brace = i;
+						// Path content starts after the opening brace.
+						window_start = i + 1;
+						depth = 1;
+					} else {
+						// Nested brace inside a path — keep counting.
+						depth += 1;
+					}
+				}
+
+				'}' => {
+					if depth == 0 {
+						// Unmatched `}` outside any path.
+						return Err(GroupPatternParseError::Syntax { position: i });
+					}
+					depth -= 1;
+					if depth == 0 {
+						// Closing brace of the outermost path expression — parse as ObjectPath.
+						let path_str = &source[window_start..i];
+						let path = path_str.parse::<ObjectPath>().map_err(|e| {
+							GroupPatternParseError::InvalidObjectPath {
+								start: open_brace,
+								end: i + 1,
+								path: path_str.into(),
+								source: e,
+							}
+						})?;
+						tokens.push((open_brace, GroupSegment::Path(path)));
+						// Literal content (if any) starts after this `}`.
+						window_start = i + 1;
+					}
+				}
+
+				_ => {}
+			}
+		}
+
+		// Unclosed `{`.
+		if depth > 0 {
+			return Err(GroupPatternParseError::Syntax {
+				position: open_brace,
+			});
+		}
+
+		// Emit any trailing literal.
+		if window_start < source.len() {
+			tokens.push((
+				window_start,
+				GroupSegment::Literal(source[window_start..].into()),
+			));
+		}
+
+		Ok(tokens)
+	}
+}
+
+//
+// MARK: tests
+//
+
+#[expect(clippy::unwrap_used)]
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	fn parse(source: &str) -> Result<Vec<(usize, GroupSegment)>, GroupPatternParseError> {
+		Parser::new().parse(source)
+	}
+
+	fn path(s: &str) -> GroupSegment {
+		GroupSegment::Path(s.parse().unwrap())
+	}
+
+	fn lit(s: &str) -> GroupSegment {
+		GroupSegment::Literal(s.into())
+	}
+
+	#[test]
+	fn regex() {
+		assert_eq!(
+			parse("{$.split(/)[-1].regex((.*).pub \\((.*)\\).pdf)[0]}").unwrap(),
+			vec![(0, path("$.split(/)[-1].regex((.*).pub \\((.*)\\).pdf)[0]"))]
+		);
+	}
+
+	#[test]
+	fn single_path() {
+		assert_eq!(parse("{$.foo}").unwrap(), vec![(0, path("$.foo"))]);
+	}
+
+	#[test]
+	fn single_literal() {
+		assert_eq!(parse("hello").unwrap(), vec![(0, lit("hello"))]);
+	}
+
+	#[test]
+	fn path_then_literal() {
+		assert_eq!(
+			parse("{$.foo}.txt").unwrap(),
+			vec![(0, path("$.foo")), (7, lit(".txt"))]
+		);
+	}
+
+	#[test]
+	fn literal_then_path() {
+		assert_eq!(
+			parse("prefix/{$.foo}").unwrap(),
+			vec![(0, lit("prefix/")), (7, path("$.foo"))]
+		);
+	}
+
+	#[test]
+	fn interleaved() {
+		assert_eq!(
+			parse("{$.a}.sep.{$.b}").unwrap(),
+			vec![(0, path("$.a")), (5, lit(".sep.")), (10, path("$.b")),]
+		);
+	}
+
+	#[test]
+	fn unmatched_open_brace_error() {
+		assert_eq!(
+			parse("{$.foo"),
+			Err(GroupPatternParseError::Syntax { position: 0 })
+		);
+	}
+
+	#[test]
+	fn unmatched_close_brace_in_literal_error() {
+		assert_eq!(
+			parse("foo}bar"),
+			Err(GroupPatternParseError::Syntax { position: 3 })
+		);
+	}
+
+	#[test]
+	fn invalid_path_error() {
+		assert_eq!(
+			parse("{not-a-path}"),
+			Err(GroupPatternParseError::InvalidObjectPath {
+				start: 0,
+				end: 12,
+				path: "not-a-path".into(),
+				source: crate::objectpath::PathParseError::MustStartWithRoot { position: 0 },
+			})
+		);
+	}
+
+	#[test]
+	fn literal_between_paths() {
+		assert_eq!(
+			parse("foo{$.x}bar").unwrap(),
+			vec![(0, lit("foo")), (3, path("$.x")), (8, lit("bar")),]
+		);
+	}
+}

crates/pile-dataset/Cargo.toml

@@ -12,6 +12,7 @@ pile-config = { workspace = true }
 pile-toolbox = { workspace = true }
 pile-value = { workspace = true }
 
+regex = { workspace = true }
 serde_json = { workspace = true }
 tantivy = { workspace = true }
 tracing = { workspace = true }
@@ -19,14 +20,7 @@ chrono = { workspace = true }
 toml = { workspace = true }
 thiserror = { workspace = true }
 tokio = { workspace = true }
-tokio-stream = { workspace = true }
-
-serde = { workspace = true, optional = true }
-axum = { workspace = true, optional = true }
-utoipa = { workspace = true, optional = true }
-utoipa-swagger-ui = { workspace = true, optional = true }
 
 [features]
 default = []
 pdfium = ["pile-value/pdfium"]
-axum = ["dep:axum", "dep:utoipa", "dep:utoipa-swagger-ui", "dep:serde"]

crates/pile-dataset/src/dataset.rs

@@ -1,16 +1,19 @@
 use chrono::{DateTime, Utc};
-use pile_config::{ConfigToml, Label, Source, objectpath::ObjectPath};
+use pile_config::{
+	ConfigToml, DatasetConfig, Label, Source, default_base, default_files, objectpath::ObjectPath,
+};
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
 use pile_value::{
-	source::{DataSource, DirDataSource, S3DataSource, misc::path_ts_earliest},
+	extract::traits::ExtractState,
+	source::{DataSource, DirDataSource, misc::path_ts_earliest},
 	value::{Item, PileValue},
 };
+use regex::Regex;
 use serde_json::Value;
 use std::{collections::HashMap, io::ErrorKind, path::PathBuf, sync::Arc, time::Instant};
 use tantivy::{Executor, Index, IndexWriter, TantivyError, collector::TopDocs};
 use thiserror::Error;
 use tokio::task::JoinSet;
-use tokio_stream::{StreamExt, wrappers::ReceiverStream};
 use tracing::{debug, info, trace, warn};
 
 use crate::index::{DbFtsIndex, FtsLookupResult};
@@ -31,31 +34,43 @@ pub enum DatasetError {
 // MARK: Dataset enum
 //
 
-/// An opened data source — either a local filesystem directory or an S3 bucket.
+/// An opened data source
 pub enum Dataset {
 	Dir(Arc<DirDataSource>),
-	S3(Arc<S3DataSource>),
 }
 
 impl Dataset {
-	pub async fn get(&self, key: &str) -> Option<Item> {
+	pub fn len(&self) -> usize {
 		match self {
-			Self::Dir(ds) => ds.get(key).await.ok().flatten(),
-			Self::S3(ds) => ds.get(key).await.ok().flatten(),
+			Self::Dir(ds) => ds.len(),
 		}
 	}
 
-	pub fn iter(&self) -> ReceiverStream<Result<Item, std::io::Error>> {
+	pub async fn get(&self, key: &str) -> Option<Item> {
 		match self {
-			Self::Dir(ds) => ds.iter(),
-			Self::S3(ds) => ds.iter(),
+			Self::Dir(ds) => ds.get(key).await.ok().flatten(),
+		}
+	}
+
+	pub fn iter(&self) -> Box<dyn Iterator<Item = &Item> + Send + '_> {
+		match self {
+			Self::Dir(ds) => Box::new(ds.iter()),
+		}
+	}
+
+	pub fn iter_page(
+		&self,
+		offset: usize,
+		limit: usize,
+	) -> Box<dyn Iterator<Item = &Item> + Send + '_> {
+		match self {
+			Self::Dir(ds) => Box::new(ds.iter_page(offset, limit)),
 		}
 	}
 
 	pub async fn latest_change(&self) -> Result<Option<DateTime<Utc>>, std::io::Error> {
 		match self {
 			Self::Dir(ds) => ds.latest_change().await,
-			Self::S3(ds) => ds.latest_change().await,
 		}
 	}
 }
@@ -66,16 +81,103 @@ impl Dataset {
 
 /// An opened dataset: config, working directory, and all opened sources.
 pub struct Datasets {
-	pub path_config: PathBuf,
+	pub path_config: Option<PathBuf>,
 	pub path_parent: PathBuf,
-	pub path_workdir: PathBuf,
+	pub path_workdir: Option<PathBuf>,
 
 	pub config: ConfigToml,
 	pub sources: HashMap<Label, Dataset>,
+	pub disabled_sources: HashMap<Label, Dataset>,
 }
 
 impl Datasets {
-	pub fn open(config: impl Into<PathBuf>) -> Result<Self, std::io::Error> {
+	#[expect(clippy::unwrap_used)]
+	pub fn virt_source() -> Label {
+		Label::new("virtual-source").unwrap()
+	}
+
+	#[expect(clippy::unwrap_used)]
+	pub async fn virt(parent: impl Into<PathBuf>) -> Result<Self, std::io::Error> {
+		let path_parent = parent.into();
+
+		let config = ConfigToml {
+			dataset: DatasetConfig {
+				name: Label::new("virtual-dataset").unwrap(),
+				source: [(
+					Self::virt_source(),
+					Source::Filesystem {
+						enabled: true,
+						path: path_parent.clone(),
+						base_pattern: default_base(),
+						files: default_files(),
+					},
+				)]
+				.into_iter()
+				.collect(),
+			},
+			schema: HashMap::new(),
+			fts: None,
+		};
+
+		let mut sources = HashMap::new();
+		let mut disabled_sources = HashMap::new();
+
+		for (label, source) in &config.dataset.source {
+			match source {
+				Source::Filesystem {
+					enabled,
+					path,
+					base_pattern,
+					files,
+				} => {
+					let target = match enabled {
+						true => &mut sources,
+						false => &mut disabled_sources,
+					};
+
+					let base_regex = Regex::new(base_pattern).map_err(|e| {
+						std::io::Error::new(
+							ErrorKind::InvalidInput,
+							format!("invalid base_pattern: {e}"),
+						)
+					})?;
+					if base_regex.captures_len() != 2 {
+						return Err(std::io::Error::new(
+							ErrorKind::InvalidInput,
+							"base_pattern must have exactly one capture group",
+						));
+					}
+
+					target.insert(
+						label.clone(),
+						Dataset::Dir(
+							DirDataSource::new(
+								label,
+								path_parent.join(path),
+								base_regex,
+								files.clone(),
+							)
+							.await?,
+						),
+					);
+				}
+			}
+		}
+
+		return Ok(Self {
+			path_config: None,
+			path_workdir: None,
+			path_parent,
+			config,
+			sources,
+			disabled_sources,
+		});
+	}
+
+	pub async fn open(
+		config: impl Into<PathBuf>,
+		working_dir_root: impl Into<PathBuf>,
+	) -> Result<Self, std::io::Error> {
 		let path_config = config.into();
 		let path_parent = path_config
 			.parent()
@@ -104,61 +206,59 @@ impl Datasets {
 			}
 		};
 
-		let path_workdir = config
-			.dataset
-			.working_dir
-			.clone()
-			.unwrap_or(path_parent.join(".pile"))
-			.join(config.dataset.name.as_str());
+		let path_workdir = working_dir_root.into().join(config.dataset.name.as_str());
 
 		let mut sources = HashMap::new();
+		let mut disabled_sources = HashMap::new();
 		for (label, source) in &config.dataset.source {
 			match source {
-				Source::Filesystem { path, sidecars } => {
-					sources.insert(
-						label.clone(),
-						Dataset::Dir(Arc::new(DirDataSource::new(
-							label,
-							path_parent.join(path),
-							*sidecars,
-						))),
-					);
-				}
-
-				Source::S3 {
-					bucket,
-					prefix,
-					endpoint,
-					region,
-					credentials,
-					sidecars,
+				Source::Filesystem {
+					enabled,
+					path,
+					base_pattern,
+					files,
 				} => {
-					match S3DataSource::new(
-						label,
-						bucket.clone(),
-						prefix.clone(),
-						endpoint.clone(),
-						region.clone(),
-						credentials,
-						*sidecars,
-					) {
-						Ok(ds) => {
-							sources.insert(label.clone(), Dataset::S3(Arc::new(ds)));
-						}
-						Err(err) => {
-							warn!("Could not open S3 source {label}: {err}");
-						}
+					let target = match enabled {
+						true => &mut sources,
+						false => &mut disabled_sources,
+					};
+
+					let base_regex = Regex::new(base_pattern).map_err(|e| {
+						std::io::Error::new(
+							ErrorKind::InvalidInput,
+							format!("invalid base_pattern: {e}"),
+						)
+					})?;
+					if base_regex.captures_len() != 2 {
+						return Err(std::io::Error::new(
+							ErrorKind::InvalidInput,
+							"base_pattern must have exactly one capture group",
+						));
 					}
+
+					target.insert(
+						label.clone(),
+						Dataset::Dir(
+							DirDataSource::new(
+								label,
+								path_parent.join(path),
+								base_regex,
+								files.clone(),
+							)
+							.await?,
+						),
+					);
 				}
 			}
 		}
 
 		return Ok(Self {
-			path_config,
+			path_config: Some(path_config),
+			path_workdir: Some(path_workdir),
 			path_parent,
-			path_workdir,
 			config,
 			sources,
+			disabled_sources,
 		});
 	}
 
@@ -174,6 +274,7 @@ impl Datasets {
 	/// Returns `None` if the item or field is not found.
 	pub async fn get_field(
 		&self,
+		state: &ExtractState,
 		source: &Label,
 		key: &str,
 		path: &ObjectPath,
@@ -183,11 +284,11 @@ impl Datasets {
 		};
 
 		let item = PileValue::Item(item);
-		let Some(value) = item.query(path).await? else {
+		let Some(value) = item.query(state, path).await? else {
 			return Ok(None);
 		};
 
-		Ok(Some(value.to_json().await?))
+		Ok(Some(value.to_json(state).await?))
 	}
 
 	//
@@ -197,11 +298,29 @@ impl Datasets {
 	/// Refresh this dataset's fts index.
 	pub async fn fts_refresh(
 		&self,
+		state: &ExtractState,
 		_threads: usize,
 		flag: Option<CancelFlag>,
 	) -> Result<(), CancelableTaskError<DatasetError>> {
-		let fts_tmp_dir = self.path_workdir.join(".tmp-fts");
-		let fts_dir = self.path_workdir.join("fts");
+		let start = Instant::now();
+		let workdir = match self.path_workdir.as_ref() {
+			Some(x) => x,
+			None => {
+				warn!("Skipping fts_refresh, no workdir");
+				return Ok(());
+			}
+		};
+
+		let fts_tmp_dir = workdir.join(".tmp-fts");
+		let fts_dir = workdir.join("fts");
+
+		debug!(
+			message = "Rebuilding fts index",
+			dataset = self.config.dataset.name.as_str(),
+			?fts_dir,
+			?fts_tmp_dir,
+			?workdir
+		);
 
 		if fts_tmp_dir.is_dir() {
 			warn!("Removing temporary index in {}", fts_dir.display());
@@ -229,7 +348,7 @@ impl Datasets {
 					index_writer.add_document(doc).map_err(DatasetError::from)?;
 					total += 1;
 					if logged_at.elapsed().as_secs() >= 5 {
-						debug!("Indexed {total} documents so far");
+						debug!("Indexed {total} documents");
 						logged_at = Instant::now();
 					}
 				}
@@ -242,19 +361,20 @@ impl Datasets {
 		for (name, dataset) in &self.sources {
 			info!("Loading source {name}");
 
-			let mut stream = dataset.iter();
-			while let Some(item_result) = stream.next().await {
+			let stream = dataset.iter();
+			for item in stream {
 				if let Some(flag) = &flag
 					&& flag.is_cancelled()
 				{
 					return Err(CancelableTaskError::Cancelled);
 				}
 
-				let item = item_result.map_err(DatasetError::from)?;
 				let db = Arc::clone(&db_index);
+				let state = state.clone();
+				let item = item.clone();
 				join_set.spawn(async move {
 					let key = item.key();
-					let result = db.entry_to_document(&item).await;
+					let result = db.entry_to_document(&state, &item).await;
 					(key, result)
 				});
 
@@ -281,9 +401,18 @@ impl Datasets {
 			return Err(CancelableTaskError::Cancelled);
 		}
 
-		info!("Committing {total} documents");
 		index_writer.commit().map_err(DatasetError::from)?;
 
+		debug!(
+			message = "Rebuilt fts index",
+			dataset = self.config.dataset.name.as_str(),
+			?fts_dir,
+			?fts_tmp_dir,
+			?workdir,
+			n_docs = total,
+			time_ms = start.elapsed().as_millis()
+		);
+
 		if fts_dir.is_dir() {
 			warn!("Removing existing index in {}", fts_dir.display());
 			std::fs::remove_dir_all(&fts_dir).map_err(DatasetError::from)?;
@@ -298,7 +427,15 @@ impl Datasets {
 		query: &str,
 		top_n: usize,
 	) -> Result<Vec<FtsLookupResult>, DatasetError> {
-		let fts_dir = self.path_workdir.join("fts");
+		let workdir = match self.path_workdir.as_ref() {
+			Some(x) => x,
+			None => {
+				warn!("Skipping fts_lookup, no workdir");
+				return Ok(Vec::new());
+			}
+		};
+
+		let fts_dir = workdir.join("fts");
 
 		if !fts_dir.exists() {
 			return Err(DatasetError::NoFtsIndex);
@@ -318,7 +455,12 @@ impl Datasets {
 
 	/// Time at which fts was created
 	pub fn ts_fts(&self) -> Result<Option<DateTime<Utc>>, std::io::Error> {
-		let fts_dir = self.path_workdir.join("fts");
+		let workdir = match self.path_workdir.as_ref() {
+			Some(x) => x,
+			None => return Ok(None),
+		};
+
+		let fts_dir = workdir.join("fts");
 
 		if !fts_dir.exists() {
 			return Ok(None);

crates/pile-dataset/src/index/index_fts.rs

@@ -1,5 +1,8 @@
-use pile_config::{ConfigToml, DatasetFts, Label};
-use pile_value::value::{Item, PileValue};
+use pile_config::{ConfigToml, DatasetFts, Label, objectpath::ObjectPath};
+use pile_value::{
+	extract::traits::ExtractState,
+	value::{Item, PileValue},
+};
 use std::{path::PathBuf, sync::LazyLock};
 use tantivy::{
 	DocAddress, Index, ReloadPolicy, TantivyDocument, TantivyError,
@@ -7,7 +10,7 @@ use tantivy::{
 	query::QueryParser,
 	schema::{self, Schema, Value as TantivyValue},
 };
-use tracing::{debug, trace, warn};
+use tracing::warn;
 
 #[derive(Debug, Clone)]
 pub struct FtsLookupResult {
@@ -63,6 +66,7 @@ impl DbFtsIndex {
 	/// Turn an entry into a tantivy document
 	pub async fn entry_to_document(
 		&self,
+		state: &ExtractState,
 		item: &Item,
 	) -> Result<Option<TantivyDocument>, TantivyError> {
 		let mut doc = TantivyDocument::default();
@@ -75,18 +79,12 @@ impl DbFtsIndex {
 
 		let mut empty = true;
 		for name in self.fts_cfg().fields.keys() {
-			let x = self.get_field(&item, name).await?;
+			let vals = self.get_field(state, &item, name).await?;
+			let field = self.schema.get_field(name)?;
 
-			let val = match x {
-				Some(x) => x,
-				None => continue,
-			};
-
-			empty = false;
-
-			let field = self.schema.get_field(name);
-			if let Ok(field) = field {
-				doc.add_text(field, val);
+			for v in vals {
+				empty = false;
+				doc.add_text(field, v);
 			}
 		}
 
@@ -99,112 +97,32 @@ impl DbFtsIndex {
 
 	pub async fn get_field(
 		&self,
+		state: &ExtractState,
 		extractor: &PileValue,
 		field_name: &Label,
-	) -> Result<Option<String>, std::io::Error> {
+	) -> Result<Vec<String>, std::io::Error> {
 		let field = match self.cfg.schema.get(field_name) {
 			Some(x) => x,
 			None => {
 				warn!("Unknown field {field_name:?}");
-				return Ok(None);
+				return Ok(Vec::new());
 			}
 		};
 
 		// Try paths in order, using the first value we find
-		'outer: for path in field.path.as_slice() {
-			let val = match extractor.query(path).await? {
+		for path in field.path.as_slice() {
+			let val = match extractor.query(state, path).await? {
+				Some(PileValue::Null) | None => continue,
 				Some(x) => x,
-				None => return Ok(None),
 			};
 
-			let mut val = match val {
-				PileValue::Null => {
-					trace!(
-						message = "Skipping field, is null",
-						field = field_name.to_string(),
-						?path,
-						// value = ?val
-					);
-					continue;
-				}
-				x => x.clone(),
-			};
-
-			loop {
-				val = match val {
-					PileValue::String(x) => return Ok(Some(x.to_string())),
-					PileValue::U64(x) => return Ok(Some(x.to_string())),
-					PileValue::I64(x) => return Ok(Some(x.to_string())),
-
-					PileValue::Array(x) => {
-						if x.len() == 1 {
-							x[0].clone()
-						} else if x.len() > 1 {
-							debug!(
-								message = "Skipping field, is array with more than one element",
-								field = field_name.to_string(),
-								?path,
-							);
-							continue 'outer;
-						} else {
-							debug!(
-								message = "Skipping field, is empty array",
-								field = field_name.to_string(),
-								?path,
-							);
-							continue 'outer;
-						}
-					}
-
-					PileValue::Null => {
-						trace!(
-							message = "Skipping field, is null",
-							field = field_name.to_string(),
-							?path,
-						);
-						continue 'outer;
-					}
-
-					PileValue::ObjectExtractor(_) => {
-						trace!(
-							message = "Skipping field, is object",
-							field = field_name.to_string(),
-							?path,
-						);
-						continue 'outer;
-					}
-
-					PileValue::Item(_) => {
-						trace!(
-							message = "Skipping field, is item",
-							field = field_name.to_string(),
-							?path,
-						);
-						continue 'outer;
-					}
-
-					PileValue::ListExtractor(_) => {
-						trace!(
-							message = "Skipping field, is ListExtractor",
-							field = field_name.to_string(),
-							?path,
-						);
-						continue 'outer;
-					}
-
-					PileValue::Blob { .. } => {
-						trace!(
-							message = "Skipping field, is blob",
-							field = field_name.to_string(),
-							?path,
-						);
-						continue 'outer;
-					}
-				}
+			let val = val_to_string(state, &val, path, field_name).await?;
+			if !val.is_empty() {
+				return Ok(val);
 			}
 		}
 
-		return Ok(None);
+		return Ok(Vec::new());
 	}
 
 	/// Run the given query on this table's ftx index.
@@ -293,3 +211,42 @@ impl DbFtsIndex {
 		return Ok(out);
 	}
 }
+
+async fn val_to_string(
+	state: &ExtractState,
+	val: &PileValue,
+	path: &ObjectPath,
+	field_name: &str,
+) -> Result<Vec<String>, std::io::Error> {
+	match val {
+		PileValue::String(x) => return Ok(vec![x.to_string()]),
+		PileValue::U64(x) => return Ok(vec![x.to_string()]),
+		PileValue::I64(x) => return Ok(vec![x.to_string()]),
+
+		PileValue::Array(x) => {
+			let mut out = Vec::new();
+			for x in x.iter() {
+				out.extend(Box::pin(val_to_string(state, x, path, field_name)).await?);
+			}
+			return Ok(out);
+		}
+
+		#[expect(clippy::unwrap_used)]
+		PileValue::ListExtractor(x) => {
+			let mut out = Vec::new();
+			let len = x.len(state).await?;
+			for i in 0..len {
+				let v = x.get(state, i).await?;
+				out.extend(Box::pin(val_to_string(state, &v.unwrap(), path, field_name)).await?);
+			}
+			return Ok(out);
+		}
+
+		PileValue::Null => {}
+		PileValue::ObjectExtractor(_) => {}
+		PileValue::Item(_) => {}
+		PileValue::Binary(_) => {}
+	}
+
+	return Ok(Vec::new());
+}

crates/pile-dataset/src/lib.rs

@@ -2,6 +2,3 @@ mod dataset;
 pub use dataset::{Dataset, DatasetError, Datasets};
 
 pub mod index;
-
-#[cfg(feature = "axum")]
-pub mod serve;

crates/pile-dataset/src/serve/field.rs

@@ -1,98 +0,0 @@
-use axum::{
-	Json,
-	extract::{Query, State},
-	http::{StatusCode, header},
-	response::{IntoResponse, Response},
-};
-use pile_config::{Label, objectpath::ObjectPath};
-use pile_value::value::PileValue;
-use serde::Deserialize;
-use std::{sync::Arc, time::Instant};
-use tracing::debug;
-use utoipa::ToSchema;
-
-use crate::Datasets;
-
-#[derive(Deserialize, ToSchema)]
-pub struct FieldQuery {
-	source: String,
-	key: String,
-	path: String,
-}
-
-/// Extract a specific field from an item's metadata
-#[utoipa::path(
-	get,
-	path = "/field",
-	params(
-		("source" = String, Query, description = "Source label"),
-		("key" = String, Query, description = "Item key"),
-		("path" = String, Query, description = "Object path (e.g. $.flac.title)"),
-	),
-	responses(
-		(status = 200, description = "Field value as JSON"),
-		(status = 400, description = "Invalid source label or path"),
-		(status = 404, description = "Item or field not found"),
-		(status = 500, description = "Internal server error"),
-	)
-)]
-pub async fn get_field(
-	State(state): State<Arc<Datasets>>,
-	Query(params): Query<FieldQuery>,
-) -> Response {
-	let start = Instant::now();
-	debug!(
-		message = "Serving /field",
-		source = params.source,
-		key = params.key,
-		path = params.path,
-	);
-
-	let label = match Label::try_from(params.source.clone()) {
-		Ok(l) => l,
-		Err(e) => return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response(),
-	};
-
-	let path: ObjectPath = match params.path.parse() {
-		Ok(p) => p,
-		Err(e) => return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response(),
-	};
-
-	let Some(item) = state.get(&label, &params.key).await else {
-		return StatusCode::NOT_FOUND.into_response();
-	};
-
-	let item = PileValue::Item(item);
-	let value = match item.query(&path).await {
-		Ok(Some(v)) => v,
-		Ok(None) => return StatusCode::NOT_FOUND.into_response(),
-		Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
-	};
-
-	debug!(
-		message = "Served /field",
-		source = params.source,
-		key = params.key,
-		path = params.path,
-		time_ms = start.elapsed().as_millis()
-	);
-
-	match value {
-		PileValue::String(s) => (
-			StatusCode::OK,
-			[(header::CONTENT_TYPE, "text/plain")],
-			s.to_string(),
-		)
-			.into_response(),
-		PileValue::Blob { mime, bytes } => (
-			StatusCode::OK,
-			[(header::CONTENT_TYPE, mime.to_string())],
-			bytes.as_ref().clone(),
-		)
-			.into_response(),
-		_ => match value.to_json().await {
-			Ok(json) => (StatusCode::OK, Json(json)).into_response(),
-			Err(e) => (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
-		},
-	}
-}

crates/pile-dataset/src/serve/item.rs

@@ -1,181 +0,0 @@
-use axum::{
-	body::Body,
-	extract::{Query, State},
-	http::{HeaderMap, StatusCode, header},
-	response::{IntoResponse, Response},
-};
-use pile_config::Label;
-use pile_value::value::{AsyncReader, AsyncSeekReader};
-use serde::Deserialize;
-use std::{io::SeekFrom, sync::Arc, time::Instant};
-use tokio::sync::mpsc;
-use tokio_stream::wrappers::ReceiverStream;
-use tracing::debug;
-use utoipa::ToSchema;
-
-use crate::Datasets;
-
-#[derive(Deserialize, ToSchema)]
-pub struct ItemQuery {
-	source: String,
-	key: String,
-}
-
-/// Parse a `Range: bytes=...` header value.
-/// Returns `(start, end)` where either may be `None` (suffix form has `None` start).
-fn parse_byte_range(s: &str) -> Option<(Option<u64>, Option<u64>)> {
-	let spec = s.strip_prefix("bytes=")?;
-	if spec.contains(',') {
-		return None; // multiple ranges not supported
-	}
-	if let Some(suffix) = spec.strip_prefix('-') {
-		return Some((None, Some(suffix.parse().ok()?)));
-	}
-	let mut parts = spec.splitn(2, '-');
-	let start: u64 = parts.next()?.parse().ok()?;
-	let end = parts
-		.next()
-		.and_then(|e| if e.is_empty() { None } else { e.parse().ok() });
-	Some((Some(start), end))
-}
-
-/// Fetch the raw bytes of an item by source and key
-#[utoipa::path(
-	get,
-	path = "/item",
-	params(
-		("source" = String, Query, description = "Source label"),
-		("key" = String, Query, description = "Item key"),
-	),
-	responses(
-		(status = 200, description = "Raw item bytes"),
-		(status = 206, description = "Partial content"),
-		(status = 400, description = "Invalid source label"),
-		(status = 404, description = "Item not found"),
-		(status = 416, description = "Range not satisfiable"),
-		(status = 500, description = "Internal server error"),
-	)
-)]
-pub async fn item_get(
-	State(state): State<Arc<Datasets>>,
-	Query(params): Query<ItemQuery>,
-	headers: HeaderMap,
-) -> Response {
-	let start = Instant::now();
-	debug!(
-		message = "Serving /item",
-		source = params.source,
-		key = params.key
-	);
-
-	let label = match Label::try_from(params.source.clone()) {
-		Ok(l) => l,
-		Err(e) => return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response(),
-	};
-
-	let Some(item) = state.get(&label, &params.key).await else {
-		return StatusCode::NOT_FOUND.into_response();
-	};
-
-	let mime = item.mime().to_string();
-
-	let mut reader = match item.read().await {
-		Ok(r) => r,
-		Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
-	};
-
-	let total = match reader.seek(SeekFrom::End(0)).await {
-		Ok(n) => n,
-		Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
-	};
-
-	let range = headers
-		.get(header::RANGE)
-		.and_then(|v| v.to_str().ok())
-		.and_then(parse_byte_range);
-
-	// Resolve (byte_start, byte_end, content_length, is_range)
-	let (byte_start, byte_end, length, is_range) = match range {
-		Some((Some(s), e)) => {
-			let e = e
-				.unwrap_or(total.saturating_sub(1))
-				.min(total.saturating_sub(1));
-			if s >= total || s > e {
-				return (
-					StatusCode::RANGE_NOT_SATISFIABLE,
-					[(header::CONTENT_RANGE, format!("bytes */{total}"))],
-				)
-					.into_response();
-			}
-			(s, e, e - s + 1, true)
-		}
-		Some((None, Some(suffix))) => {
-			let s = total.saturating_sub(suffix);
-			let e = total.saturating_sub(1);
-			(s, e, total.saturating_sub(s), true)
-		}
-		_ => (0, total.saturating_sub(1), total, false),
-	};
-
-	if let Err(e) = reader.seek(SeekFrom::Start(byte_start)).await {
-		return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response();
-	}
-
-	debug!(
-		message = "Served /item",
-		source = params.source,
-		key = params.key,
-		time_ms = start.elapsed().as_millis()
-	);
-
-	let (tx, rx) = mpsc::channel::<Result<Vec<u8>, std::io::Error>>(8);
-
-	tokio::spawn(async move {
-		let mut buf = vec![0u8; 65536];
-		let mut remaining = length;
-		loop {
-			if remaining == 0 {
-				break;
-			}
-			let to_read = (buf.len() as u64).min(remaining) as usize;
-			match reader.read(&mut buf[..to_read]).await {
-				Ok(0) => break,
-				Ok(n) => {
-					remaining -= n as u64;
-					if tx.send(Ok(buf[..n].to_vec())).await.is_err() {
-						break;
-					}
-				}
-				Err(e) => {
-					let _ = tx.send(Err(e)).await;
-					break;
-				}
-			}
-		}
-	});
-
-	let body = Body::from_stream(ReceiverStream::new(rx));
-	let status = if is_range {
-		StatusCode::PARTIAL_CONTENT
-	} else {
-		StatusCode::OK
-	};
-
-	let mut builder = axum::http::Response::builder()
-		.status(status)
-		.header(header::CONTENT_TYPE, mime)
-		.header(header::ACCEPT_RANGES, "bytes")
-		.header(header::CONTENT_LENGTH, length);
-
-	if is_range {
-		builder = builder.header(
-			header::CONTENT_RANGE,
-			format!("bytes {byte_start}-{byte_end}/{total}"),
-		);
-	}
-
-	builder
-		.body(body)
-		.map(IntoResponse::into_response)
-		.unwrap_or_else(|e| (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response())
-}

crates/pile-dataset/src/serve/mod.rs

@@ -1,47 +0,0 @@
-use axum::{
-	Router,
-	routing::{get, post},
-};
-use std::sync::Arc;
-use utoipa::OpenApi;
-use utoipa_swagger_ui::SwaggerUi;
-
-use crate::Datasets;
-
-mod lookup;
-pub use lookup::*;
-
-mod item;
-pub use item::*;
-
-mod field;
-pub use field::*;
-
-#[derive(OpenApi)]
-#[openapi(
-	tags(),
-	paths(lookup, item_get, get_field),
-	components(schemas(LookupRequest, LookupResponse, LookupResult, ItemQuery, FieldQuery))
-)]
-pub(crate) struct Api;
-
-impl Datasets {
-	#[inline]
-	pub fn router(self: Arc<Self>, with_docs: bool) -> Router<()> {
-		let mut router = Router::new()
-			.route("/lookup", post(lookup))
-			.route("/item", get(item_get))
-			.route("/field", get(get_field))
-			.with_state(self.clone());
-
-		if with_docs {
-			let docs_path = "/docs";
-			let docs = SwaggerUi::new(docs_path)
-				.url(format!("{}/openapi.json", docs_path), Api::openapi());
-
-			router = router.merge(docs);
-		}
-
-		router
-	}
-}

crates/pile-flac/src/reader/reader.rs

@@ -1,10 +1,20 @@
-use std::io::{Read, Seek, SeekFrom};
+use std::io::{ErrorKind, Read, Seek, SeekFrom};
 
 use crate::{
 	FlacBlock, FlacDecodeError,
 	blocks::{FlacAudioFrame, FlacMetablockHeader, FlacMetablockType},
 };
 
+fn read_exact_flac<R: Read>(reader: &mut R, buf: &mut [u8]) -> Result<(), FlacDecodeError> {
+	reader.read_exact(buf).map_err(|e| {
+		if e.kind() == ErrorKind::UnexpectedEof {
+			FlacDecodeError::MalformedBlock
+		} else {
+			e.into()
+		}
+	})
+}
+
 // TODO: quickly skip blocks we do not need
 
 /// The next block we expect to read
@@ -42,9 +52,9 @@ impl<R: Read + Seek> Iterator for FlacReader<R> {
 
 				ReaderState::MagicBits => {
 					let mut data = [0u8; 4];
-					if let Err(e) = self.inner.read_exact(&mut data[..4]) {
+					if let Err(e) = read_exact_flac(&mut self.inner, &mut data[..4]) {
 						self.state = ReaderState::Done;
-						return Some(Err(e.into()));
+						return Some(Err(e));
 					}
 
 					if data != [0x66, 0x4C, 0x61, 0x43] {
@@ -57,9 +67,9 @@ impl<R: Read + Seek> Iterator for FlacReader<R> {
 
 				ReaderState::MetablockHeader { is_first } => {
 					let mut data = [0u8; 4];
-					if let Err(e) = self.inner.read_exact(&mut data[..]) {
+					if let Err(e) = read_exact_flac(&mut self.inner, &mut data[..]) {
 						self.state = ReaderState::Done;
-						return Some(Err(e.into()));
+						return Some(Err(e));
 					}
 
 					let header = match FlacMetablockHeader::decode(&data) {
@@ -80,9 +90,9 @@ impl<R: Read + Seek> Iterator for FlacReader<R> {
 
 				ReaderState::MetaBlock { header } => {
 					let mut data = vec![0u8; header.length as usize];
-					if let Err(e) = self.inner.read_exact(&mut data) {
+					if let Err(e) = read_exact_flac(&mut self.inner, &mut data) {
 						self.state = ReaderState::Done;
-						return Some(Err(e.into()));
+						return Some(Err(e));
 					}
 
 					let block = match FlacBlock::decode(header.block_type, &data) {

crates/pile-io/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "pile-io"
+version = { workspace = true }
+rust-version = { workspace = true }
+edition = { workspace = true }
+
+[lints]
+workspace = true
+
+[dependencies]
+tokio = { workspace = true }

crates/pile-io/src/asyncreader.rs

@@ -0,0 +1,75 @@
+use std::io::{Read, Seek, SeekFrom};
+use tokio::runtime::Handle;
+
+//
+// MARK: asyncreader
+//
+
+/// An `async` equivalent of [std::io::Read].
+pub trait AsyncReader: Send {
+	/// Read a chunk of bytes.
+	fn read(
+		&mut self,
+		buf: &mut [u8],
+	) -> impl Future<Output = Result<usize, std::io::Error>> + Send;
+
+	/// Read all remaining bytes into a `Vec`.
+	fn read_to_end(&mut self) -> impl Future<Output = Result<Vec<u8>, std::io::Error>> + Send {
+		async {
+			let mut buf = Vec::new();
+			let mut chunk = vec![0u8; 65536];
+			loop {
+				let n = self.read(&mut chunk).await?;
+				if n == 0 {
+					break;
+				}
+				buf.extend_from_slice(&chunk[..n]);
+			}
+			Ok(buf)
+		}
+	}
+}
+
+/// An `async` equivalent of [std::io::Read] + [std::io::Seek].
+pub trait AsyncSeekReader: AsyncReader {
+	fn seek(&mut self, pos: SeekFrom) -> impl Future<Output = Result<u64, std::io::Error>> + Send;
+}
+
+//
+// MARK: sync bridge
+//
+
+/// Turn an async [Reader] into a sync [Read] + [Seek].
+///
+/// Never use this outside of [tokio::task::spawn_blocking],
+/// the async runtime will deadlock if this struct blocks
+/// the runtime.
+pub struct SyncReadBridge<R: AsyncReader> {
+	inner: R,
+	handle: Handle,
+}
+
+impl<R: AsyncReader> SyncReadBridge<R> {
+	/// Creates a new adapter using a handle to the current runtime.
+	/// Panics if called outside of a tokio context.
+	pub fn new_current(inner: R) -> Self {
+		Self::new(inner, Handle::current())
+	}
+
+	/// Creates a new adapter using a handle to an existing runtime.
+	pub fn new(inner: R, handle: Handle) -> Self {
+		Self { inner, handle }
+	}
+}
+
+impl<R: AsyncReader> Read for SyncReadBridge<R> {
+	fn read(&mut self, buf: &mut [u8]) -> Result<usize, std::io::Error> {
+		self.handle.block_on(self.inner.read(buf))
+	}
+}
+
+impl<R: AsyncReader + AsyncSeekReader> Seek for SyncReadBridge<R> {
+	fn seek(&mut self, pos: SeekFrom) -> Result<u64, std::io::Error> {
+		self.handle.block_on(self.inner.seek(pos))
+	}
+}

crates/pile-io/src/lib.rs

@@ -0,0 +1,2 @@
+mod asyncreader;
+pub use asyncreader::*;

crates/pile-serve/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "pile-serve"
+version = { workspace = true }
+rust-version = { workspace = true }
+edition = { workspace = true }
+
+[lints]
+workspace = true
+
+[dependencies]
+pile-config = { workspace = true }
+pile-value = { workspace = true }
+pile-dataset = { workspace = true }
+
+serde_json = { workspace = true }
+tracing = { workspace = true }
+tokio = { workspace = true }
+tokio-util = { version = "0.7", features = ["io"] }
+
+serde = { workspace = true }
+axum = { workspace = true }
+percent-encoding = { workspace = true }
+utoipa = { workspace = true }
+utoipa-swagger-ui = { workspace = true }
+
+[features]
+default = []
+pdfium = ["pile-value/pdfium"]

crates/pile-serve/src/config_schema.rs

@@ -0,0 +1,30 @@
+use axum::{
+	Json,
+	extract::State,
+	http::StatusCode,
+	response::{IntoResponse, Response},
+};
+use pile_dataset::Datasets;
+use std::{collections::HashMap, sync::Arc};
+
+pub use pile_config::FieldSpec;
+
+pub type FieldsResponse = HashMap<String, FieldSpec>;
+
+/// Retrieve this dataset's schema.
+#[utoipa::path(
+	get,
+	path = "/config/schema",
+	responses(
+		(status = 200, description = "This dataset's schema"),
+	)
+)]
+pub async fn config_schema(State(state): State<Arc<Datasets>>) -> Response {
+	let fields: FieldsResponse = state
+		.config
+		.schema
+		.iter()
+		.map(|(k, v)| (k.as_str().to_owned(), v.clone()))
+		.collect();
+	(StatusCode::OK, Json(fields)).into_response()
+}

crates/pile-serve/src/extract.rs

@@ -0,0 +1,190 @@
+use axum::{
+	Json,
+	body::Body,
+	extract::{Query, RawQuery, State},
+	http::{StatusCode, header},
+	response::{IntoResponse, Response},
+};
+use percent_encoding::percent_decode_str;
+use pile_config::{Label, objectpath::ObjectPath};
+use pile_dataset::Datasets;
+use pile_value::{
+	extract::traits::ExtractState,
+	value::{BinaryPileValue, PileValue},
+};
+use serde::Deserialize;
+use std::{sync::Arc, time::Instant};
+use tokio_util::io::ReaderStream;
+use tracing::debug;
+use utoipa::ToSchema;
+
+#[derive(Deserialize, ToSchema)]
+pub struct ExtractQuery {
+	source: String,
+	key: String,
+
+	#[serde(default)]
+	download: bool,
+	name: Option<String>,
+}
+
+/// Extract a specific field from an item's metadata.
+/// Multiple `path` parameters may be provided; the first non-null result is returned.
+#[utoipa::path(
+	get,
+	path = "/extract",
+	params(
+		("source" = String, Query, description = "Source label"),
+		("key" = String, Query, description = "Item key"),
+		("path" = String, Query, description = "Object path (e.g. $.flac.title); repeat for fallbacks"),
+		("name" = Option<String>, Query, description = "Downloaded filename; defaults to the last segment of the key"),
+	),
+	responses(
+		(status = 200, description = "Field value as JSON"),
+		(status = 400, description = "Invalid source label or path"),
+		(status = 404, description = "Item or field not found"),
+		(status = 500, description = "Internal server error"),
+	)
+)]
+pub async fn get_extract(
+	State(state): State<Arc<Datasets>>,
+	Query(params): Query<ExtractQuery>,
+	RawQuery(raw_query): RawQuery,
+) -> Response {
+	let start = Instant::now();
+
+	let label = match Label::try_from(params.source.clone()) {
+		Ok(l) => l,
+		Err(e) => return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response(),
+	};
+
+	// Collect all `path` query params in order (supports repeated ?path=...&path=...)
+	let raw = raw_query.as_deref().unwrap_or("");
+	let paths: Vec<ObjectPath> = {
+		let mut result = Vec::new();
+		for part in raw.split('&') {
+			if let Some((k, v)) = part.split_once('=')
+				&& k == "path"
+			{
+				let v = percent_decode_str(v).decode_utf8_lossy();
+				match v.parse::<ObjectPath>() {
+					Ok(p) => result.push(p),
+					Err(e) => {
+						return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response();
+					}
+				}
+			}
+		}
+		result
+	};
+
+	if paths.is_empty() {
+		return (StatusCode::BAD_REQUEST, "Missing `path` query parameter").into_response();
+	}
+
+	debug!(
+		message = "Serving /extract",
+		source = params.source,
+		key = params.key,
+		paths = paths.len(),
+	);
+
+	let Some(item) = state.get(&label, &params.key).await else {
+		return StatusCode::NOT_FOUND.into_response();
+	};
+
+	let extract_state = ExtractState { ignore_mime: false };
+	let item = PileValue::Item(item);
+
+	// Try each path in order, returning the first non-null result
+	let mut value = None;
+	for path in &paths {
+		match item.query(&extract_state, path).await {
+			Ok(None) => continue,
+
+			Ok(Some(PileValue::Null)) => {
+				value = Some(PileValue::Null);
+				continue;
+			}
+
+			Ok(Some(v)) => {
+				value = Some(v);
+				break;
+			}
+
+			Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
+		}
+	}
+
+	let Some(value) = value else {
+		return (StatusCode::BAD_REQUEST, "no value").into_response();
+	};
+
+	debug!(
+		message = "Served /extract",
+		source = params.source,
+		key = params.key,
+		time_ms = start.elapsed().as_millis()
+	);
+
+	let disposition_type = if params.download {
+		"attachment"
+	} else {
+		"inline"
+	};
+	let file_name = params.name.unwrap_or_else(|| {
+		params
+			.key
+			.rsplit('/')
+			.next()
+			.unwrap_or(&params.key)
+			.to_owned()
+	});
+	let disposition = format!("{disposition_type}; filename=\"{file_name}\"");
+
+	match value {
+		PileValue::String(s) => (
+			StatusCode::OK,
+			[
+				(header::CONTENT_TYPE, "text/plain".to_owned()),
+				(header::CONTENT_DISPOSITION, disposition),
+			],
+			s.to_string(),
+		)
+			.into_response(),
+
+		PileValue::Binary(binary) => {
+			let mime = binary.mime().to_string();
+			let body = match binary {
+				BinaryPileValue::Blob { bytes, .. } => Body::from(bytes.0.to_vec()),
+				BinaryPileValue::File { path, .. } => match tokio::fs::File::open(&path).await {
+					Ok(file) => Body::from_stream(ReaderStream::new(file)),
+					Err(e) => {
+						return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}"))
+							.into_response();
+					}
+				},
+			};
+			(
+				StatusCode::OK,
+				[
+					(header::CONTENT_TYPE, mime),
+					(header::CONTENT_DISPOSITION, disposition),
+				],
+				body,
+			)
+				.into_response()
+		}
+
+		_ => match value.to_json(&extract_state).await {
+			Ok(json) => (
+				StatusCode::OK,
+				[(header::CONTENT_DISPOSITION, disposition)],
+				Json(json),
+			)
+				.into_response(),
+
+			Err(e) => (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
+		},
+	}
+}

crates/pile-serve/src/items.rs

@@ -0,0 +1,103 @@
+use axum::{
+	Json,
+	extract::{Query, State},
+	http::StatusCode,
+	response::{IntoResponse, Response},
+};
+use pile_dataset::Datasets;
+use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+use tracing::debug;
+use utoipa::ToSchema;
+
+#[derive(Deserialize, ToSchema)]
+pub struct ItemsQuery {
+	#[serde(default)]
+	offset: usize,
+	#[serde(default = "default_limit")]
+	limit: usize,
+}
+
+fn default_limit() -> usize {
+	100
+}
+
+#[derive(Debug, Serialize, Deserialize, ToSchema)]
+pub struct ItemsResponse {
+	pub items: Vec<ItemRef>,
+	pub total: usize,
+	pub offset: usize,
+	pub limit: usize,
+}
+
+#[derive(Debug, Serialize, Deserialize, ToSchema)]
+pub struct ItemRef {
+	pub source: String,
+	pub key: String,
+}
+
+/// List all items across all sources with consistent ordering, paginated by offset and limit
+#[utoipa::path(
+	get,
+	path = "/items",
+	params(
+		("offset" = usize, Query, description = "Number of items to skip"),
+		("limit" = usize, Query, description = "Maximum number of items to return (max 1000)"),
+	),
+	responses(
+		(status = 200, description = "Paginated list of items", body = ItemsResponse),
+	)
+)]
+pub async fn items_list(
+	State(state): State<Arc<Datasets>>,
+	Query(params): Query<ItemsQuery>,
+) -> Response {
+	let limit = params.limit.min(1000);
+	let offset = params.offset;
+
+	debug!(message = "Serving /items", offset, limit);
+
+	// Sort sources by label for a consistent global order: (source, key)
+	let mut source_labels: Vec<_> = state.sources.keys().collect();
+	source_labels.sort();
+
+	let mut items: Vec<ItemRef> = Vec::with_capacity(limit);
+	let mut total = 0usize;
+	let mut remaining_offset = offset;
+
+	for label in source_labels {
+		let dataset = &state.sources[label];
+		let source_len = dataset.len();
+
+		if remaining_offset >= source_len {
+			// This entire source is before our window; skip it efficiently
+			remaining_offset -= source_len;
+			total += source_len;
+			continue;
+		}
+
+		let want = (limit - items.len()).min(source_len - remaining_offset);
+		let source_str = label.as_str().to_owned();
+		for item in dataset.iter_page(remaining_offset, want) {
+			items.push(ItemRef {
+				source: source_str.clone(),
+				key: item.key().to_string(),
+			});
+		}
+		remaining_offset = 0;
+		total += source_len;
+	}
+
+	debug!(message = "Served /items", offset, limit, total);
+
+	(
+		StatusCode::OK,
+		Json(ItemsResponse {
+			items,
+			total,
+			offset,
+			limit,
+		}),
+	)
+		.into_response()
+}

crates/pile-serve/src/lib.rs

@@ -0,0 +1,89 @@
+use axum::{
+	Router,
+	routing::{get, post},
+};
+use pile_dataset::Datasets;
+use std::sync::Arc;
+use utoipa::OpenApi;
+use utoipa_swagger_ui::SwaggerUi;
+
+mod lookup;
+pub use lookup::*;
+
+mod extract;
+pub use extract::*;
+
+mod items;
+pub use items::*;
+
+mod config_schema;
+pub use config_schema::*;
+
+mod schema_field;
+pub use schema_field::*;
+
+mod schema;
+pub use schema::*;
+
+#[derive(OpenApi)]
+#[openapi(
+	tags(),
+	paths(
+		lookup,
+		get_extract,
+		items_list,
+		config_schema,
+		schema_field,
+		schema_all
+	),
+	components(schemas(
+		LookupRequest,
+		LookupResponse,
+		LookupResult,
+		ExtractQuery,
+		ItemsQuery,
+		ItemsResponse,
+		ItemRef
+	))
+)]
+pub(crate) struct Api;
+
+#[inline]
+pub fn router(ds: Arc<Datasets>, with_docs: bool) -> Router<()> {
+	router_prefix(ds, with_docs, None)
+}
+
+#[inline]
+pub fn router_prefix(ds: Arc<Datasets>, with_docs: bool, prefix: Option<&str>) -> Router<()> {
+	let mut router = Router::new()
+		.route("/lookup", post(lookup))
+		.route("/extract", get(get_extract))
+		.route("/items", get(items_list))
+		.route("/config/schema", get(config_schema))
+		.route("/schema", get(schema_all))
+		.route("/schema/{field}", get(schema_field))
+		.with_state(ds.clone());
+
+	if let Some(prefix) = prefix {
+		router = Router::new().nest(prefix, router);
+	}
+
+	if with_docs {
+		let docs_path = match prefix {
+			None => "/docs".into(),
+			Some(prefix) => format!("{prefix}/docs"),
+		};
+
+		let api = Api::openapi();
+		let api = match prefix {
+			None => api,
+			Some(prefix) => utoipa::openapi::OpenApi::default().nest(prefix, api),
+		};
+
+		let docs =
+			SwaggerUi::new(docs_path.clone()).url(format!("{}/openapi.json", docs_path), api);
+
+		router = router.merge(docs);
+	}
+	router
+}

crates/pile-serve/src/lookup.rs

@@ -4,13 +4,12 @@ use axum::{
 	http::StatusCode,
 	response::{IntoResponse, Response},
 };
+use pile_dataset::Datasets;
 use serde::{Deserialize, Serialize};
 use std::{sync::Arc, time::Instant};
 use tracing::debug;
 use utoipa::ToSchema;
 
-use crate::Datasets;
-
 #[derive(Serialize, Deserialize, ToSchema, Debug)]
 pub struct LookupRequest {
 	pub query: String,
@@ -22,6 +21,7 @@ pub struct LookupRequest {
 #[derive(Debug, Serialize, Deserialize, ToSchema)]
 pub struct LookupResponse {
 	pub results: Vec<LookupResult>,
+	pub total: u64,
 }
 
 #[derive(Debug, Serialize, Deserialize, ToSchema)]
@@ -48,13 +48,10 @@ pub async fn lookup(
 	Json(body): Json<LookupRequest>,
 ) -> Response {
 	let start = Instant::now();
-	debug!(
-		message = "Serving /lookup",
-		query = body.query,
-		limit = body.limit.unwrap_or(10)
-	);
+	let limit = body.limit.unwrap_or(128).min(1024);
+	debug!(message = "Serving /lookup", query = body.query, limit);
 
-	let results: Vec<LookupResult> = match state.fts_lookup(&body.query, body.limit.unwrap_or(10)) {
+	let results: Vec<LookupResult> = match state.fts_lookup(&body.query, limit) {
 		Ok(x) => x
 			.into_iter()
 			.map(|x| LookupResult {
@@ -69,6 +66,8 @@ pub async fn lookup(
 		}
 	};
 
+	let total: u64 = state.sources.iter().map(|x| x.1.len() as u64).sum();
+
 	debug!(
 		message = "Served /lookup",
 		query = body.query,
@@ -76,5 +75,5 @@ pub async fn lookup(
 		time_ms = start.elapsed().as_millis()
 	);
 
-	return (StatusCode::OK, Json(LookupResponse { results })).into_response();
+	return (StatusCode::OK, Json(LookupResponse { results, total })).into_response();
 }

crates/pile-serve/src/schema.rs

@@ -0,0 +1,129 @@
+use axum::{
+	Json,
+	extract::{Query, State},
+	http::StatusCode,
+	response::{IntoResponse, Response},
+};
+use pile_config::Label;
+use pile_dataset::Datasets;
+use pile_value::{extract::traits::ExtractState, value::PileValue};
+use serde::{Deserialize, Serialize};
+use std::{collections::HashMap, sync::Arc};
+use utoipa::IntoParams;
+
+#[derive(Deserialize, IntoParams)]
+pub struct SchemaQuery {
+	source: String,
+	key: String,
+
+	#[serde(default)]
+	hidden: bool,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum ApiValue {
+	Binary { binary: bool, mime: String },
+	Object { object: bool },
+	Array(Vec<ApiValue>),
+	String(String),
+	Number(serde_json::Number),
+	Null,
+}
+
+pub type SchemaResponse = HashMap<String, ApiValue>;
+
+async fn pile_value_to_api(
+	state: &ExtractState,
+	value: PileValue,
+) -> Result<ApiValue, std::io::Error> {
+	match value {
+		PileValue::String(s) => Ok(ApiValue::String(s.to_string())),
+		PileValue::U64(n) => Ok(ApiValue::Number(n.into())),
+		PileValue::I64(n) => Ok(ApiValue::Number(n.into())),
+		PileValue::Null => Ok(ApiValue::Null),
+
+		PileValue::Binary(x) => Ok(ApiValue::Binary {
+			binary: true,
+			mime: x.mime().to_string(),
+		}),
+
+		PileValue::Array(arr) => {
+			let mut out = Vec::with_capacity(arr.len());
+			for item in arr.iter() {
+				out.push(Box::pin(pile_value_to_api(state, item.clone())).await?);
+			}
+			Ok(ApiValue::Array(out))
+		}
+
+		PileValue::ObjectExtractor(_) | PileValue::ListExtractor(_) | PileValue::Item(_) => {
+			Ok(ApiValue::Object { object: true })
+		}
+	}
+}
+
+/// Get all schema field values for a single item.
+#[utoipa::path(
+	get,
+	path = "/schema",
+	params(
+		("source" = String, Query, description = "Source label"),
+		("key" = String, Query, description = "Item key"),
+		("hidden" = bool, Query, description = "Include hidden fields (default: false)"),
+	),
+	responses(
+		(status = 200, description = "Schema field values as a map of label to value"),
+		(status = 400, description = "Invalid source label"),
+		(status = 404, description = "Item not found"),
+		(status = 500, description = "Internal server error"),
+	)
+)]
+pub async fn schema_all(
+	State(state): State<Arc<Datasets>>,
+	Query(params): Query<SchemaQuery>,
+) -> Response {
+	let label = match Label::try_from(params.source.clone()) {
+		Ok(l) => l,
+		Err(e) => return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response(),
+	};
+
+	let Some(item) = state.get(&label, &params.key).await else {
+		return StatusCode::NOT_FOUND.into_response();
+	};
+
+	let extract_state = ExtractState { ignore_mime: false };
+	let item = PileValue::Item(item);
+
+	let mut result: SchemaResponse = HashMap::new();
+
+	for (field_label, field_spec) in &state.config.schema {
+		if field_spec.hidden && !params.hidden {
+			continue;
+		}
+
+		let mut value = None;
+		for path in &field_spec.path {
+			match item.query(&extract_state, path).await {
+				Ok(Some(PileValue::Null)) | Ok(None) => continue,
+				Ok(Some(v)) => {
+					value = Some(v);
+					break;
+				}
+				Err(e) => {
+					return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response();
+				}
+			}
+		}
+
+		let Some(v) = value else { continue };
+
+		let api_value = match pile_value_to_api(&extract_state, v).await {
+			Ok(v) => v,
+			Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
+		};
+
+		result.insert(field_label.as_str().to_owned(), api_value);
+	}
+
+	(StatusCode::OK, Json(result)).into_response()
+}

crates/pile-serve/src/schema_field.rs

@@ -0,0 +1,173 @@
+use axum::{
+	Json,
+	body::Body,
+	extract::{Path, Query, State},
+	http::{StatusCode, header},
+	response::{IntoResponse, Response},
+};
+use pile_config::Label;
+use pile_dataset::Datasets;
+use pile_value::{
+	extract::traits::ExtractState,
+	value::{BinaryPileValue, PileValue},
+};
+use serde::Deserialize;
+use std::{sync::Arc, time::Instant};
+use tokio_util::io::ReaderStream;
+use tracing::debug;
+use utoipa::IntoParams;
+
+#[derive(Deserialize, IntoParams)]
+pub struct SchemaFieldQuery {
+	source: String,
+	key: String,
+
+	#[serde(default)]
+	download: bool,
+	name: Option<String>,
+}
+
+/// Extract a specific schema field from an item's metadata.
+#[utoipa::path(
+	get,
+	path = "/schema/{field}",
+	params(
+		("field" = String, Path, description = "Schema field"),
+		("source" = String, Query, description = "Source label"),
+		("key" = String, Query, description = "Item key"),
+		("name" = Option<String>, Query, description = "Downloaded filename; defaults to the last segment of the key"),
+	),
+	responses(
+		(status = 200, description = "Field value as JSON"),
+		(status = 400, description = "Invalid source label or path"),
+		(status = 404, description = "Item or field not found"),
+		(status = 500, description = "Internal server error"),
+	)
+)]
+pub async fn schema_field(
+	State(state): State<Arc<Datasets>>,
+	Path(field): Path<String>,
+	Query(params): Query<SchemaFieldQuery>,
+) -> Response {
+	let start = Instant::now();
+
+	let label = match Label::try_from(params.source.clone()) {
+		Ok(l) => l,
+		Err(e) => return (StatusCode::BAD_REQUEST, format!("{e:?}")).into_response(),
+	};
+
+	debug!(
+		message = "Serving /schema/{field}",
+		source = params.source,
+		key = params.key,
+		field = field,
+	);
+
+	let Some(item) = state.get(&label, &params.key).await else {
+		return StatusCode::NOT_FOUND.into_response();
+	};
+
+	let field_label = match Label::new(&field) {
+		Some(x) => x,
+		None => return StatusCode::NOT_FOUND.into_response(),
+	};
+
+	let paths = match state.config.schema.get(&field_label) {
+		Some(x) => &x.path,
+		None => return StatusCode::NOT_FOUND.into_response(),
+	};
+
+	let extract_state = ExtractState { ignore_mime: false };
+	let item = PileValue::Item(item);
+
+	let mut value = None;
+	for path in paths {
+		match item.query(&extract_state, path).await {
+			Ok(None) => continue,
+
+			Ok(Some(PileValue::Null)) => {
+				value = Some(PileValue::Null);
+				continue;
+			}
+
+			Ok(Some(v)) => {
+				value = Some(v);
+				break;
+			}
+
+			Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
+		}
+	}
+
+	let Some(value) = value else {
+		return (StatusCode::BAD_REQUEST, "no value").into_response();
+	};
+
+	debug!(
+		message = "Served /schema/{field}",
+		source = params.source,
+		key = params.key,
+		field = field,
+		time_ms = start.elapsed().as_millis()
+	);
+
+	let disposition_type = if params.download {
+		"attachment"
+	} else {
+		"inline"
+	};
+	let file_name = params.name.unwrap_or_else(|| {
+		params
+			.key
+			.rsplit('/')
+			.next()
+			.unwrap_or(&params.key)
+			.to_owned()
+	});
+	let disposition = format!("{disposition_type}; filename=\"{file_name}\"");
+
+	match value {
+		PileValue::String(s) => (
+			StatusCode::OK,
+			[
+				(header::CONTENT_TYPE, "text/plain".to_owned()),
+				(header::CONTENT_DISPOSITION, disposition),
+			],
+			s.to_string(),
+		)
+			.into_response(),
+
+		PileValue::Binary(binary) => {
+			let mime = binary.mime().to_string();
+			let body = match binary {
+				BinaryPileValue::Blob { bytes, .. } => Body::from(bytes.0.to_vec()),
+				BinaryPileValue::File { path, .. } => match tokio::fs::File::open(&path).await {
+					Ok(file) => Body::from_stream(ReaderStream::new(file)),
+					Err(e) => {
+						return (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}"))
+							.into_response();
+					}
+				},
+			};
+			(
+				StatusCode::OK,
+				[
+					(header::CONTENT_TYPE, mime),
+					(header::CONTENT_DISPOSITION, disposition),
+				],
+				body,
+			)
+				.into_response()
+		}
+
+		_ => match value.to_json(&extract_state).await {
+			Ok(json) => (
+				StatusCode::OK,
+				[(header::CONTENT_DISPOSITION, disposition)],
+				Json(json),
+			)
+				.into_response(),
+			Err(e) => (StatusCode::INTERNAL_SERVER_ERROR, format!("{e:?}")).into_response(),
+		},
+	}
+}

crates/pile-toolbox/src/cancelabletask.rs

@@ -80,10 +80,12 @@ impl CancelFlag {
 
 	#[inline]
 	pub async fn await_cancel(&self) {
-		if self.is_cancelled() {
-			return;
+		let notified = self.notify.notified();
+		tokio::pin!(notified);
+		notified.as_mut().enable();
+		if !self.is_cancelled() {
+			notified.await;
 		}
-		self.notify.notified().await;
 	}
 
 	#[inline]

crates/pile-value/Cargo.toml

@@ -8,6 +8,7 @@ edition = { workspace = true }
 workspace = true
 
 [dependencies]
+pile-io = { workspace = true }
 pile-config = { workspace = true }
 pile-flac = { workspace = true }
 
@@ -18,20 +19,27 @@ tracing = { workspace = true }
 chrono = { workspace = true }
 toml = { workspace = true }
 smartstring = { workspace = true }
+regex = { workspace = true }
 blake3 = { workspace = true }
+sha2 = { workspace = true }
+sha1 = { workspace = true }
+md5 = { workspace = true }
 epub = { workspace = true }
 kamadak-exif = { workspace = true }
 pdf = { workspace = true }
 pdfium-render = { workspace = true, optional = true }
-image = { workspace = true, optional = true }
+image = { workspace = true }
 id3 = { workspace = true }
 tokio = { workspace = true }
-tokio-stream = { workspace = true }
 async-trait = { workspace = true }
-aws-sdk-s3 = { workspace = true }
 mime = { workspace = true }
 mime_guess = { workspace = true }
+serde = { workspace = true }
+strum = { workspace = true }
+
+[build-dependencies]
+reqwest = { workspace = true }
 
 [features]
 default = []
-pdfium = ["dep:pdfium-render", "dep:image"]
+pdfium = ["dep:pdfium-render"]

crates/pile-value/build.rs

@@ -1,7 +1,34 @@
 use std::env;
 use std::path::PathBuf;
 
-const PDFIUM_URL: &str = "https://github.com/bblanchon/pdfium-binaries/releases/download/chromium%2F7725/pdfium-linux-x64.tgz";
+const PDFIUM_VERSION: &str = "chromium%2F7725";
+
+fn pdfium_url(os: &str, arch: &str) -> String {
+	let platform = match (os, arch) {
+		("linux", "x86_64") => "linux-x64",
+		("linux", "aarch64") => "linux-arm64",
+		("macos", "x86_64") => "mac-x64",
+		("macos", "aarch64") => "mac-arm64",
+		_ => panic!("unsupported platform: {os}-{arch}"),
+	};
+	format!(
+		"https://github.com/bblanchon/pdfium-binaries/releases/download/{PDFIUM_VERSION}/pdfium-{platform}.tgz"
+	)
+}
+
+fn lib_name(os: &str) -> &'static str {
+	match os {
+		"macos" => "libpdfium.dylib",
+		_ => "libpdfium.so",
+	}
+}
+
+fn rpath_flag(os: &str) -> &'static str {
+	match os {
+		"macos" => "-Wl,-rpath,@loader_path",
+		_ => "-Wl,-rpath,$ORIGIN",
+	}
+}
 
 #[expect(clippy::expect_used)]
 #[expect(clippy::unwrap_used)]
@@ -13,6 +40,9 @@ fn main() {
 		return;
 	}
 
+	let os = env::var("CARGO_CFG_TARGET_OS").unwrap();
+	let arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
+
 	let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
 
 	// OUT_DIR is target/<profile>/build/<pkg>-<hash>/out
@@ -30,18 +60,23 @@ fn main() {
 		return;
 	}
 
-	let lib_path = profile_dir.join("libpdfium.so");
+	let lib_file = lib_name(&os);
+	let lib_path = profile_dir.join(lib_file);
 
 	if !lib_path.exists() {
+		let url = pdfium_url(&os, &arch);
 		let tgz_path = out_dir.join("pdfium.tgz");
 
-		eprintln!("cargo:warning=Downloading PDFium from {PDFIUM_URL}");
+		eprintln!("cargo:warning=Downloading PDFium from {url}");
 
-		let status = std::process::Command::new("curl")
-			.args(["-L", "--fail", "-o", tgz_path.to_str().unwrap(), PDFIUM_URL])
-			.status()
-			.expect("failed to run curl");
-		assert!(status.success(), "curl failed to download PDFium");
+		let response = reqwest::blocking::get(&url).expect("failed to download PDFium");
+		assert!(
+			response.status().is_success(),
+			"failed to download PDFium: {}",
+			response.status()
+		);
+		let bytes = response.bytes().expect("failed to read PDFium response");
+		std::fs::write(&tgz_path, &bytes).expect("failed to write pdfium.tgz");
 
 		let status = std::process::Command::new("tar")
 			.args([
@@ -54,11 +89,11 @@ fn main() {
 			.expect("failed to run tar");
 		assert!(status.success(), "tar failed to extract PDFium");
 
-		std::fs::copy(out_dir.join("lib").join("libpdfium.so"), &lib_path)
-			.expect("failed to copy libpdfium.so");
+		std::fs::copy(out_dir.join("lib").join(lib_file), &lib_path)
+			.expect("failed to copy pdfium library");
 	}
 
 	println!("cargo:rustc-link-search=native={}", profile_dir.display());
 	println!("cargo:rustc-link-lib=dylib=pdfium");
-	println!("cargo:rustc-link-arg=-Wl,-rpath,$ORIGIN");
+	println!("cargo:rustc-link-arg={}", rpath_flag(&os));
 }

crates/pile-value/src/extract/blob/epub/epub_cover.rs

@@ -0,0 +1,75 @@
+use epub::doc::EpubDoc;
+use mime::Mime;
+use pile_io::SyncReadBridge;
+use std::sync::{Arc, OnceLock};
+use tracing::trace;
+
+use crate::{
+	extract::traits::ExtractState,
+	value::{ArcBytes, BinaryPileValue, PileValue},
+};
+
+pub struct EpubCoverExtractor {
+	item: BinaryPileValue,
+	output: OnceLock<Option<(Mime, Vec<u8>)>>,
+}
+
+impl EpubCoverExtractor {
+	pub fn new(item: &BinaryPileValue) -> Self {
+		Self {
+			item: item.clone(),
+			output: OnceLock::new(),
+		}
+	}
+
+	async fn get_inner(&self) -> Result<Option<&(Mime, Vec<u8>)>, std::io::Error> {
+		if let Some(x) = self.output.get() {
+			return Ok(x.as_ref());
+		}
+
+		let reader = SyncReadBridge::new_current(self.item.read().await?);
+		let result = tokio::task::spawn_blocking(move || {
+			let mut doc = EpubDoc::from_reader(reader)?;
+			let cover_id = match doc.get_cover_id() {
+				Ok(id) => id,
+				Err(_) => return Ok::<_, anyhow::Error>(None),
+			};
+
+			let mime: Mime = doc
+				.resources
+				.get(&cover_id)
+				.and_then(|(_, mime_str)| mime_str.parse().ok())
+				.unwrap_or(mime::IMAGE_JPEG);
+
+			let bytes = doc.get_cover()?;
+			Ok(Some((mime, bytes)))
+		})
+		.await?;
+
+		let result = match result {
+			Ok(x) => x,
+			Err(error) => match error.downcast::<std::io::Error>() {
+				Ok(x) => return Err(x),
+				Err(error) => {
+					trace!(message = "Could not extract epub cover", ?error, item = ?self.item);
+					None
+				}
+			},
+		};
+
+		Ok(self.output.get_or_init(|| result).as_ref())
+	}
+
+	pub async fn get(&self, state: &ExtractState) -> Result<Option<PileValue>, std::io::Error> {
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/epub+zip" {
+			return Ok(None);
+		}
+
+		Ok(self.get_inner().await?.map(|(mime, bytes)| {
+			PileValue::Binary(BinaryPileValue::Blob {
+				mime: mime.clone(),
+				bytes: ArcBytes(Arc::new(bytes.clone())),
+			})
+		}))
+	}
+}

crates/pile-value/src/extract/blob/epub/epub_meta.rs

@@ -1,5 +1,6 @@
 use epub::doc::EpubDoc;
 use pile_config::Label;
+use pile_io::SyncReadBridge;
 use std::{
 	collections::HashMap,
 	sync::{Arc, OnceLock},
@@ -7,17 +8,17 @@ use std::{
 use tracing::trace;
 
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
 };
 
 pub struct EpubMetaExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl EpubMetaExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -56,7 +57,7 @@ impl EpubMetaExtractor {
 			Err(error) => match error.downcast::<std::io::Error>() {
 				Ok(x) => return Err(x),
 				Err(error) => {
-					trace!(message = "Could not process epub", ?error, key = ?self.item.key());
+					trace!(message = "Could not process epub", ?error, item = ?self.item);
 					return Ok(self.output.get_or_init(HashMap::new));
 				}
 			},
@@ -82,6 +83,7 @@ impl EpubMetaExtractor {
 impl ObjectExtractor for EpubMetaExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -89,6 +91,10 @@ impl ObjectExtractor for EpubMetaExtractor {
 			return Ok(None);
 		}
 
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/epub+zip" {
+			return Ok(None);
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 

crates/pile-value/src/extract/blob/epub/epub_text.rs

@@ -1,5 +1,6 @@
 use epub::doc::EpubDoc;
 use pile_config::Label;
+use pile_io::SyncReadBridge;
 use std::{
 	collections::HashMap,
 	sync::{Arc, OnceLock},
@@ -7,17 +8,17 @@ use std::{
 use tracing::trace;
 
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
 };
 
 pub struct EpubTextExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl EpubTextExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -53,7 +54,7 @@ impl EpubTextExtractor {
 			Err(error) => match error.downcast::<std::io::Error>() {
 				Ok(x) => return Err(x),
 				Err(error) => {
-					trace!(message = "Could not process epub", ?error, key = ?self.item.key());
+					trace!(message = "Could not process epub", ?error, item = ?self.item);
 					return Ok(self.output.get_or_init(HashMap::new));
 				}
 			},
@@ -92,6 +93,7 @@ fn strip_html(html: &str) -> String {
 impl ObjectExtractor for EpubTextExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -99,6 +101,10 @@ impl ObjectExtractor for EpubTextExtractor {
 			return Ok(None);
 		}
 
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/epub+zip" {
+			return Ok(None);
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 

crates/pile-value/src/extract/blob/epub/mod.rs

@@ -0,0 +1,109 @@
+use pile_config::Label;
+use std::sync::Arc;
+
+mod epub_cover;
+pub use epub_cover::*;
+
+mod epub_meta;
+pub use epub_meta::*;
+
+mod epub_text;
+pub use epub_text::*;
+
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
+};
+
+pub struct EpubExtractor {
+	text: Arc<EpubTextExtractor>,
+	meta: Arc<EpubMetaExtractor>,
+	cover: Arc<EpubCoverExtractor>,
+}
+
+impl EpubExtractor {
+	pub fn new(item: &BinaryPileValue) -> Self {
+		Self {
+			text: Arc::new(EpubTextExtractor::new(item)),
+			meta: Arc::new(EpubMetaExtractor::new(item)),
+			cover: Arc::new(EpubCoverExtractor::new(item)),
+		}
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for EpubExtractor {
+	async fn field(
+		&self,
+		state: &ExtractState,
+		name: &pile_config::Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		match (name.as_str(), args) {
+			("text", args) => Ok(Some(
+				self.text
+					.field(state, name, args)
+					.await
+					.map(|x| x.unwrap_or(PileValue::Null))?,
+			)),
+
+			("meta", None) => Ok(Some(PileValue::ObjectExtractor(self.meta.clone()))),
+			("cover", None) => self.cover.get(state).await,
+			_ => Ok(None),
+		}
+	}
+
+	#[expect(clippy::unwrap_used)]
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		Ok(vec![
+			Label::new("text").unwrap(),
+			Label::new("meta").unwrap(),
+			Label::new("cover").unwrap(),
+		])
+	}
+
+	async fn to_json(&self, state: &ExtractState) -> Result<serde_json::Value, std::io::Error> {
+		let keys = self.fields().await?;
+		let mut map = serde_json::Map::new();
+		for k in &keys {
+			let v = match self.field(state, k, None).await? {
+				Some(x) => x,
+				None => continue,
+			};
+
+			if k.as_str() == "text" {
+				map.insert(
+					k.to_string(),
+					serde_json::Value::String(format!(
+						"<String ({} bytes)",
+						match v {
+							PileValue::String(x) => x.len(),
+							_ => 0,
+						}
+					)),
+				);
+				continue;
+			}
+
+			if k.as_str() == "cover" {
+				let summary = match &v {
+					PileValue::Binary(BinaryPileValue::Blob { mime, bytes }) => {
+						format!("<Blob ({mime}, {} bytes)>", bytes.0.len())
+					}
+					PileValue::Binary(BinaryPileValue::File { mime, .. }) => {
+						format!("<File ({mime})>")
+					}
+
+					PileValue::Null => "<null>".to_owned(),
+					_ => "<cover>".to_owned(),
+				};
+				map.insert(k.to_string(), serde_json::Value::String(summary));
+				continue;
+			}
+
+			map.insert(k.to_string(), Box::pin(v.to_json(state)).await?);
+		}
+
+		Ok(serde_json::Value::Object(map))
+	}
+}

crates/pile-value/src/extract/blob/exif.rs

@@ -1,4 +1,5 @@
 use pile_config::Label;
+use pile_io::SyncReadBridge;
 use std::{
 	collections::HashMap,
 	io::BufReader,
@@ -7,17 +8,17 @@ use std::{
 use tracing::trace;
 
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
 };
 
 pub struct ExifExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl ExifExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -52,7 +53,7 @@ impl ExifExtractor {
 			Ok(x) => x,
 			Err(exif::Error::Io(x)) => return Err(x),
 			Err(error) => {
-				trace!(message = "Could not process exif", ?error, key = ?self.item.key());
+				trace!(message = "Could not process exif", ?error, item = ?self.item);
 				return Ok(self.output.get_or_init(HashMap::new));
 			}
 		};
@@ -87,12 +88,13 @@ fn tag_to_label(tag: &str) -> Option<Label> {
 impl ObjectExtractor for ExifExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
 		trace!(
 			?args,
-			key = self.item.key().as_str(),
+			item = ?self.item,
 			"Getting field {name:?} from ExifExtractor",
 		);
 
@@ -100,6 +102,10 @@ impl ObjectExtractor for ExifExtractor {
 			return Ok(None);
 		}
 
+		if !state.ignore_mime && self.item.mime().type_() != mime::IMAGE {
+			return Ok(None);
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 

crates/pile-value/src/extract/blob/flac.rs

@@ -1,6 +1,7 @@
 use mime::Mime;
 use pile_config::Label;
 use pile_flac::{FlacBlock, FlacDecodeError, FlacReader};
+use pile_io::SyncReadBridge;
 use std::{
 	collections::HashMap,
 	io::BufReader,
@@ -9,17 +10,17 @@ use std::{
 use tracing::trace;
 
 use crate::{
-	extract::traits::{ListExtractor, ObjectExtractor},
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ListExtractor, ObjectExtractor},
+	value::{ArcBytes, BinaryPileValue, PileValue},
 };
 
 pub struct FlacImagesExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	cached_count: OnceLock<usize>,
 }
 
 impl FlacImagesExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			cached_count: OnceLock::new(),
@@ -46,17 +47,33 @@ impl FlacImagesExtractor {
 
 		return Ok(count);
 	}
+
+	fn mime_ok(&self, state: &ExtractState) -> bool {
+		if state.ignore_mime {
+			return true;
+		}
+		let essence = self.item.mime().essence_str();
+		essence == "audio/flac" || essence == "audio/x-flac"
+	}
 }
 
 #[async_trait::async_trait]
 impl ListExtractor for FlacImagesExtractor {
-	async fn get<'a>(&'a self, mut idx: usize) -> Result<Option<PileValue>, std::io::Error> {
+	async fn get(
+		&self,
+		state: &ExtractState,
+		mut idx: usize,
+	) -> Result<Option<PileValue>, std::io::Error> {
 		trace!(
-			key = self.item.key().as_str(),
+			item = ?self.item,
 			"Getting index {idx} from FlacImagesExtractor",
 		);
 
-		let key = self.item.key();
+		if !self.mime_ok(state) {
+			return Ok(None);
+		}
+
+		let item = self.item.clone();
 		let reader = SyncReadBridge::new_current(self.item.read().await?);
 		let image = tokio::task::spawn_blocking(move || {
 			let reader = FlacReader::new(BufReader::new(reader));
@@ -76,11 +93,7 @@ impl ListExtractor for FlacImagesExtractor {
 
 					Err(FlacDecodeError::IoError(err)) => return Err(err),
 					Err(error) => {
-						trace!(
-							message = "Could not parse FLAC images",
-							key = key.as_str(),
-							?error
-						);
+						trace!(message = "Could not parse FLAC images", ?item, ?error);
 						return Ok(None);
 					}
 
@@ -92,13 +105,19 @@ impl ListExtractor for FlacImagesExtractor {
 		.await
 		.map_err(std::io::Error::other)??;
 
-		Ok(image.map(|(mime, data)| PileValue::Blob {
-			mime,
-			bytes: Arc::new(data),
+		Ok(image.map(|(mime, data)| {
+			PileValue::Binary(BinaryPileValue::Blob {
+				mime,
+				bytes: ArcBytes(Arc::new(data)),
+			})
 		}))
 	}
 
-	async fn len(&self) -> Result<usize, std::io::Error> {
+	async fn len(&self, state: &ExtractState) -> Result<usize, std::io::Error> {
+		if !self.mime_ok(state) {
+			return Ok(0);
+		}
+
 		if let Some(x) = self.cached_count.get() {
 			return Ok(*x);
 		}
@@ -109,13 +128,13 @@ impl ListExtractor for FlacImagesExtractor {
 }
 
 pub struct FlacExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 	images: PileValue,
 }
 
 impl FlacExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -128,12 +147,9 @@ impl FlacExtractor {
 			return Ok(x);
 		}
 
-		trace!(
-			message = "Reading FLAC tags",
-			key = self.item.key().as_str()
-		);
+		trace!(message = "Reading FLAC tags", item = ?self.item);
 
-		let key = self.item.key();
+		let item = self.item.clone();
 		let reader = SyncReadBridge::new_current(self.item.read().await?);
 		let output = tokio::task::spawn_blocking(move || {
 			let reader = FlacReader::new(BufReader::new(reader));
@@ -155,11 +171,7 @@ impl FlacExtractor {
 
 					Err(FlacDecodeError::IoError(err)) => return Err(err),
 					Err(error) => {
-						trace!(
-							message = "Could not parse FLAC metadata",
-							key = key.as_str(),
-							?error
-						);
+						trace!(message = "Could not parse FLAC metadata", ?item, ?error);
 						return Ok(HashMap::new());
 					}
 
@@ -178,12 +190,21 @@ impl FlacExtractor {
 
 		return Ok(self.output.get_or_init(|| output));
 	}
+
+	fn mime_ok(&self, state: &ExtractState) -> bool {
+		if state.ignore_mime {
+			return true;
+		}
+		let essence = self.item.mime().essence_str();
+		essence == "audio/flac" || essence == "audio/x-flac"
+	}
 }
 
 #[async_trait::async_trait]
 impl ObjectExtractor for FlacExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -191,6 +212,10 @@ impl ObjectExtractor for FlacExtractor {
 			return Ok(None);
 		}
 
+		if !self.mime_ok(state) {
+			return Ok(None);
+		}
+
 		if name.as_str() == "images" {
 			return Ok(Some(self.images.clone()));
 		}

crates/pile-value/src/extract/blob/fs.rs

@@ -1,6 +1,6 @@
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
 };
 use pile_config::Label;
 use std::{
@@ -10,12 +10,12 @@ use std::{
 };
 
 pub struct FsExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl FsExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -27,22 +27,23 @@ impl FsExtractor {
 			return Ok(x);
 		}
 
-		let Item::File { path, .. } = &self.item else {
-			return Ok(self.output.get_or_init(HashMap::new));
+		let path = match &self.item {
+			BinaryPileValue::File { path, .. } => path,
+			_ => return Ok(self.output.get_or_init(HashMap::new)),
 		};
 
 		let mut root = false;
 		let components = path
 			.components()
-			.map(|x| match x {
+			.filter_map(|x| match x {
 				Component::CurDir => None,
-				Component::Normal(x) => x.to_str().map(|x| x.to_owned()),
-				Component::ParentDir => Some("..".to_owned()),
+				Component::Normal(x) => Some(x.to_str().map(|x| x.to_owned())),
+				Component::ParentDir => Some(Some("..".to_owned())),
 				Component::RootDir => {
 					root = true;
-					None
+					Some(None)
 				}
-				Component::Prefix(x) => x.as_os_str().to_str().map(|x| x.to_owned()),
+				Component::Prefix(x) => Some(x.as_os_str().to_str().map(|x| x.to_owned())),
 			})
 			.collect::<Option<Vec<_>>>();
 
@@ -69,6 +70,7 @@ impl FsExtractor {
 			(
 				Label::new("segments").unwrap(),
 				components
+					.clone()
 					.map(|x| {
 						PileValue::Array(Arc::new(
 							x.iter()
@@ -78,6 +80,12 @@ impl FsExtractor {
 					})
 					.unwrap_or(PileValue::Null),
 			),
+			(
+				Label::new("name").unwrap(),
+				components
+					.and_then(|x| x.last().map(|x| PileValue::String(Arc::new(x.into()))))
+					.unwrap_or(PileValue::Null),
+			),
 		]);
 
 		return Ok(self.output.get_or_init(|| output));
@@ -88,6 +96,7 @@ impl FsExtractor {
 impl ObjectExtractor for FsExtractor {
 	async fn field(
 		&self,
+		_state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {

crates/pile-value/src/extract/blob/hash.rs

@@ -0,0 +1,111 @@
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
+};
+use pile_config::Label;
+use pile_io::SyncReadBridge;
+use std::{io::Read, sync::Arc};
+use tokio::sync::OnceCell;
+
+fn to_hex(bytes: &[u8]) -> String {
+	bytes.iter().map(|b| format!("{b:02x}")).collect()
+}
+
+macro_rules! hash_algos {
+	($($name:ident),* $(,)?) => {
+		pub struct HashExtractor {
+			item: BinaryPileValue,
+			$($name: OnceCell<String>,)*
+		}
+
+		impl HashExtractor {
+			pub fn new(item: &BinaryPileValue) -> Self {
+				Self {
+					item: item.clone(),
+					$($name: OnceCell::new(),)*
+				}
+			}
+		}
+
+		static LABELS: std::sync::LazyLock<Vec<Label>> = std::sync::LazyLock::new(|| {
+			vec![$(Label::new(stringify!($name)).unwrap()),*]
+		});
+	};
+}
+
+hash_algos!(blake3, md5, sha1, sha224, sha256, sha384, sha512);
+
+impl HashExtractor {
+	async fn compute(&self, name: &Label) -> Result<Option<String>, std::io::Error> {
+		let name_str = name.as_ref();
+
+		macro_rules! algo {
+			($cell:ident, $compute:expr) => {
+				if name_str == stringify!($cell) {
+					return Ok(Some(
+						self.$cell
+							.get_or_try_init(|| async {
+								let read = self.item.read().await?;
+								let mut read = SyncReadBridge::new_current(read);
+								tokio::task::spawn_blocking(move || {
+									let mut bytes = Vec::new();
+									read.read_to_end(&mut bytes)?;
+									Ok::<String, std::io::Error>($compute(&bytes))
+								})
+								.await?
+							})
+							.await?
+							.clone(),
+					));
+				}
+			};
+		}
+
+		algo!(blake3, |b: &Vec<u8>| blake3::hash(b).to_hex().to_string());
+		algo!(md5, |b: &Vec<u8>| format!("{:x}", md5::compute(b)));
+		algo!(sha1, |b: &Vec<u8>| {
+			use sha1::Digest;
+			to_hex(sha1::Sha1::digest(b).as_ref())
+		});
+		algo!(sha224, |b: &Vec<u8>| {
+			use sha2::Digest;
+			to_hex(sha2::Sha224::digest(b).as_ref())
+		});
+		algo!(sha256, |b: &Vec<u8>| {
+			use sha2::Digest;
+			to_hex(sha2::Sha256::digest(b).as_ref())
+		});
+		algo!(sha384, |b: &Vec<u8>| {
+			use sha2::Digest;
+			to_hex(sha2::Sha384::digest(b).as_ref())
+		});
+		algo!(sha512, |b: &Vec<u8>| {
+			use sha2::Digest;
+			to_hex(sha2::Sha512::digest(b).as_ref())
+		});
+
+		Ok(None)
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for HashExtractor {
+	async fn field(
+		&self,
+		_state: &ExtractState,
+		name: &Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		if args.is_some() {
+			return Ok(None);
+		}
+		Ok(self
+			.compute(name)
+			.await?
+			.map(|s| PileValue::String(Arc::new(s.into()))))
+	}
+
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		Ok(LABELS.clone())
+	}
+}

crates/pile-value/src/extract/blob/id3.rs

@@ -1,5 +1,7 @@
 use id3::Tag;
+use mime::Mime;
 use pile_config::Label;
+use pile_io::SyncReadBridge;
 use std::{
 	borrow::Cow,
 	collections::HashMap,
@@ -9,20 +11,106 @@ use std::{
 use tracing::trace;
 
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ListExtractor, ObjectExtractor},
+	value::{ArcBytes, BinaryPileValue, PileValue},
 };
 
+pub struct Id3ImagesExtractor {
+	item: BinaryPileValue,
+	cached_count: OnceLock<usize>,
+}
+
+impl Id3ImagesExtractor {
+	pub fn new(item: &BinaryPileValue) -> Self {
+		Self {
+			item: item.clone(),
+			cached_count: OnceLock::new(),
+		}
+	}
+
+	async fn read_tag(&self) -> Result<Option<Tag>, std::io::Error> {
+		let item = self.item.clone();
+		let reader = SyncReadBridge::new_current(self.item.read().await?);
+		tokio::task::spawn_blocking(move || match Tag::read_from2(BufReader::new(reader)) {
+			Ok(tag) => Ok(Some(tag)),
+			Err(id3::Error {
+				kind: id3::ErrorKind::Io(e),
+				..
+			}) => Err(e),
+			Err(error) => {
+				trace!(message = "Could not parse id3 tags", ?item, ?error);
+				Ok(None)
+			}
+		})
+		.await
+		.map_err(std::io::Error::other)?
+	}
+
+	fn mime_ok(&self, state: &ExtractState) -> bool {
+		state.ignore_mime || self.item.mime().essence_str() == "audio/mpeg"
+	}
+}
+
+#[async_trait::async_trait]
+impl ListExtractor for Id3ImagesExtractor {
+	async fn get(
+		&self,
+		state: &ExtractState,
+		idx: usize,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		if !self.mime_ok(state) {
+			return Ok(None);
+		}
+
+		let Some(tag) = self.read_tag().await? else {
+			return Ok(None);
+		};
+
+		let Some(picture) = tag.pictures().nth(idx) else {
+			return Ok(None);
+		};
+
+		let mime: Mime = picture
+			.mime_type
+			.parse()
+			.unwrap_or(mime::APPLICATION_OCTET_STREAM);
+		let data = picture.data.clone();
+
+		Ok(Some(PileValue::Binary(BinaryPileValue::Blob {
+			mime,
+			bytes: ArcBytes(Arc::new(data)),
+		})))
+	}
+
+	async fn len(&self, state: &ExtractState) -> Result<usize, std::io::Error> {
+		if !self.mime_ok(state) {
+			return Ok(0);
+		}
+
+		if let Some(x) = self.cached_count.get() {
+			return Ok(*x);
+		}
+
+		let count = match self.read_tag().await? {
+			Some(tag) => tag.pictures().count(),
+			None => 0,
+		};
+		Ok(*self.cached_count.get_or_init(|| count))
+	}
+}
+
 pub struct Id3Extractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
+	images: PileValue,
 }
 
 impl Id3Extractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
+			images: PileValue::ListExtractor(Arc::new(Id3ImagesExtractor::new(item))),
 		}
 	}
 
@@ -31,9 +119,9 @@ impl Id3Extractor {
 			return Ok(x);
 		}
 
-		trace!(message = "Reading id3 tags", key = self.item.key().as_str());
+		trace!(message = "Reading id3 tags", key = ?self.item);
 
-		let key = self.item.key();
+		let item = self.item.clone();
 		let reader = SyncReadBridge::new_current(self.item.read().await?);
 		let tag = match tokio::task::spawn_blocking(move || Tag::read_from2(BufReader::new(reader)))
 			.await
@@ -47,24 +135,22 @@ impl Id3Extractor {
 			})) => return Err(e),
 
 			Ok(Err(error)) => {
-				trace!(
-					message = "Could not parse id3 tags",
-					key = key.as_str(),
-					?error
-				);
+				trace!(message = "Could not parse id3 tags", ?item, ?error);
 				return Ok(self.output.get_or_init(HashMap::new));
 			}
 		};
 
 		let mut output: HashMap<Label, Vec<PileValue>> = HashMap::new();
 		for frame in tag.frames() {
-			if let Some(text) = frame.content().text() {
+			if let Some(texts) = frame.content().text_values() {
 				let name = frame_id_to_field(frame.id());
 				if let Some(key) = Label::new(name) {
-					output
-						.entry(key)
-						.or_default()
-						.push(PileValue::String(Arc::new(text.into())));
+					for text in texts {
+						output
+							.entry(key.clone())
+							.or_default()
+							.push(PileValue::String(Arc::new(text.into())));
+					}
 				}
 			}
 		}
@@ -123,6 +209,7 @@ fn frame_id_to_field(id: &str) -> Cow<'static, str> {
 impl ObjectExtractor for Id3Extractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -130,10 +217,25 @@ impl ObjectExtractor for Id3Extractor {
 			return Ok(None);
 		}
 
+		if !state.ignore_mime && self.item.mime().essence_str() != "audio/mpeg" {
+			return Ok(None);
+		}
+
+		if name.as_str() == "images" {
+			return Ok(Some(self.images.clone()));
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 
+	#[expect(clippy::unwrap_used)]
 	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
-		Ok(self.get_inner().await?.keys().cloned().collect())
+		Ok(self
+			.get_inner()
+			.await?
+			.keys()
+			.cloned()
+			.chain([Label::new("images").unwrap()])
+			.collect::<Vec<_>>())
 	}
 }

crates/pile-value/src/extract/blob/image/mod.rs

@@ -0,0 +1,100 @@
+use image::ImageFormat;
+use mime::Mime;
+use pile_config::Label;
+use pile_io::AsyncReader;
+use std::{io::Cursor, str::FromStr, sync::Arc};
+use tracing::trace;
+use transform::{CropTransformer, ImageTransformer, MaxDimTransformer};
+
+mod transform;
+
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{ArcBytes, BinaryPileValue, PileValue},
+};
+
+pub struct ImageExtractor {
+	item: BinaryPileValue,
+}
+
+impl ImageExtractor {
+	pub fn new(item: &BinaryPileValue) -> Self {
+		Self { item: item.clone() }
+	}
+
+	async fn apply<T: ImageTransformer + Send + 'static>(
+		&self,
+		args: &str,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		let transformer = match T::parse_args(args) {
+			Ok(t) => t,
+			Err(_) => return Ok(None),
+		};
+
+		let mime = self.item.mime().clone();
+		let bytes = self.item.read().await?.read_to_end().await?;
+
+		let Some(format) = ImageFormat::from_mime_type(&mime) else {
+			return Ok(Some(PileValue::Binary(BinaryPileValue::Blob {
+				mime,
+				bytes: ArcBytes(Arc::new(bytes)),
+			})));
+		};
+
+		let bytes_for_closure = bytes.clone();
+		let result = tokio::task::spawn_blocking(move || {
+			let mut img = image::load_from_memory_with_format(&bytes_for_closure, format)?;
+			transformer.transform(&mut img);
+
+			let mut out = Cursor::new(Vec::new());
+			img.write_to(&mut out, format)?;
+
+			let out_mime =
+				Mime::from_str(format.to_mime_type()).unwrap_or(mime::APPLICATION_OCTET_STREAM);
+			Ok::<_, image::ImageError>((out_mime, out.into_inner()))
+		})
+		.await?;
+
+		match result {
+			Ok((out_mime, out_bytes)) => Ok(Some(PileValue::Binary(BinaryPileValue::Blob {
+				mime: out_mime,
+				bytes: ArcBytes(Arc::new(out_bytes)),
+			}))),
+
+			Err(_) => Ok(Some(PileValue::Binary(BinaryPileValue::Blob {
+				mime,
+				bytes: ArcBytes(Arc::new(bytes)),
+			}))),
+		}
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for ImageExtractor {
+	async fn field(
+		&self,
+		_state: &ExtractState,
+		name: &Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		let Some(args) = args else {
+			return Ok(None);
+		};
+
+		trace!(?args, "Getting field {name:?} from ImageExtractor",);
+
+		match name.as_str() {
+			"maxdim" => self.apply::<MaxDimTransformer>(args).await,
+			"crop" => self.apply::<CropTransformer>(args).await,
+			_ => Ok(None),
+		}
+	}
+
+	#[expect(clippy::unwrap_used)]
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		Ok(vec![
+			Label::new("maxdim").unwrap(),
+			Label::new("crop").unwrap(),
+		])
+	}
+}

crates/pile-value/src/extract/blob/image/transform/mod.rs

@@ -0,0 +1,4 @@
+mod pixeldim;
+
+pub mod transformers;
+pub use transformers::{CropTransformer, ImageTransformer, MaxDimTransformer};

crates/pile-value/src/extract/blob/image/transform/pixeldim.rs

@@ -0,0 +1,68 @@
+use serde::{Deserialize, Deserializer};
+use std::fmt;
+use std::str::FromStr;
+
+// TODO: parse -, + (100vw - 10px)
+// TODO: parse 100vw [min] 10
+// TODO: parse 100vw [max] 10
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum PixelDim {
+	Pixels(u32),
+	WidthPercent(f32),
+	HeightPercent(f32),
+}
+
+impl FromStr for PixelDim {
+	type Err = String;
+
+	fn from_str(s: &str) -> Result<Self, Self::Err> {
+		let numeric_end = s.find(|c: char| !c.is_ascii_digit() && c != '.');
+
+		let (quantity, unit) = numeric_end.map(|x| s.split_at(x)).unwrap_or((s, "px"));
+		let quantity = quantity.trim();
+		let unit = unit.trim();
+
+		match unit {
+			"vw" => Ok(PixelDim::WidthPercent(
+				quantity
+					.parse()
+					.map_err(|_err| format!("invalid quantity {quantity}"))?,
+			)),
+
+			"vh" => Ok(PixelDim::HeightPercent(
+				quantity
+					.parse()
+					.map_err(|_err| format!("invalid quantity {quantity}"))?,
+			)),
+
+			"px" => Ok(PixelDim::Pixels(
+				quantity
+					.parse()
+					.map_err(|_err| format!("invalid quantity {quantity}"))?,
+			)),
+
+			_ => Err(format!("invalid unit {unit}")),
+		}
+	}
+}
+
+impl<'de> Deserialize<'de> for PixelDim {
+	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+	where
+		D: Deserializer<'de>,
+	{
+		let s = String::deserialize(deserializer)?;
+		FromStr::from_str(&s).map_err(serde::de::Error::custom)
+	}
+}
+
+impl fmt::Display for PixelDim {
+	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+		match self {
+			PixelDim::Pixels(px) => write!(f, "{px}"),
+			PixelDim::WidthPercent(p) => write!(f, "{p:.2}vw"),
+			PixelDim::HeightPercent(p) => write!(f, "{p:.2}vh"),
+		}
+	}
+}

crates/pile-value/src/extract/blob/image/transform/transformers/crop.rs

@@ -0,0 +1,188 @@
+use image::DynamicImage;
+use serde::{Deserialize, Serialize};
+use std::{fmt::Display, str::FromStr};
+use strum::{Display, EnumString};
+
+use super::super::{pixeldim::PixelDim, transformers::ImageTransformer};
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, EnumString, Serialize, Deserialize, Display)]
+pub enum Direction {
+	#[serde(rename = "n")]
+	#[strum(to_string = "n")]
+	#[strum(serialize = "north")]
+	North,
+
+	#[serde(rename = "e")]
+	#[strum(serialize = "e")]
+	#[strum(serialize = "east")]
+	East,
+
+	#[serde(rename = "s")]
+	#[strum(serialize = "s")]
+	#[strum(serialize = "south")]
+	South,
+
+	#[serde(rename = "w")]
+	#[strum(to_string = "w")]
+	#[strum(serialize = "west")]
+	West,
+
+	#[serde(rename = "c")]
+	#[strum(serialize = "c")]
+	#[strum(serialize = "center")]
+	Center,
+
+	#[serde(rename = "ne")]
+	#[strum(serialize = "ne")]
+	#[strum(serialize = "northeast")]
+	NorthEast,
+
+	#[serde(rename = "se")]
+	#[strum(serialize = "se")]
+	#[strum(serialize = "southeast")]
+	SouthEast,
+
+	#[serde(rename = "nw")]
+	#[strum(serialize = "nw")]
+	#[strum(serialize = "northwest")]
+	NorthWest,
+
+	#[serde(rename = "sw")]
+	#[strum(serialize = "sw")]
+	#[strum(serialize = "southwest")]
+	SouthWest,
+}
+
+/// Crop an image to (at most) the given size.
+/// See [Self::new] for details.
+#[derive(Debug, Clone, PartialEq)]
+pub struct CropTransformer {
+	w: PixelDim,
+	h: PixelDim,
+	float: Direction,
+}
+
+impl CropTransformer {
+	/// Create a new [CropTransformer] with the given parameters.
+	///
+	/// A [CropTransformer] creates an image of size `w x h`, but...
+	/// - does not reduce width if `w` is greater than image width
+	/// - does not reduce height if `h` is greater than image height
+	/// - does nothing if `w` or `h` is less than or equal to zero.
+	#[expect(dead_code)]
+	pub fn new(w: PixelDim, h: PixelDim, float: Direction) -> Self {
+		Self { w, h, float }
+	}
+
+	fn crop_dim(&self, img_width: u32, img_height: u32) -> (u32, u32) {
+		let crop_width = match self.w {
+			PixelDim::Pixels(w) => w,
+			PixelDim::WidthPercent(pct) => ((img_width as f32) * pct / 100.0) as u32,
+			PixelDim::HeightPercent(pct) => ((img_height as f32) * pct / 100.0) as u32,
+		};
+
+		let crop_height = match self.h {
+			PixelDim::Pixels(h) => h,
+			PixelDim::WidthPercent(pct) => ((img_width as f32) * pct / 100.0) as u32,
+			PixelDim::HeightPercent(pct) => ((img_height as f32) * pct / 100.0) as u32,
+		};
+
+		(crop_width, crop_height)
+	}
+
+	#[expect(clippy::integer_division)]
+	fn crop_pos(
+		&self,
+		img_width: u32,
+		img_height: u32,
+		crop_width: u32,
+		crop_height: u32,
+	) -> (u32, u32) {
+		match self.float {
+			Direction::North => {
+				let x = (img_width - crop_width) / 2;
+				let y = 0;
+				(x, y)
+			}
+			Direction::East => {
+				let x = img_width - crop_width;
+				let y = (img_height - crop_height) / 2;
+				(x, y)
+			}
+			Direction::South => {
+				let x = (img_width - crop_width) / 2;
+				let y = img_height - crop_height;
+				(x, y)
+			}
+			Direction::West => {
+				let x = 0;
+				let y = (img_height - crop_height) / 2;
+				(x, y)
+			}
+			Direction::Center => {
+				let x = (img_width - crop_width) / 2;
+				let y = (img_height - crop_height) / 2;
+				(x, y)
+			}
+			Direction::NorthEast => {
+				let x = img_width - crop_width;
+				let y = 0;
+				(x, y)
+			}
+			Direction::SouthEast => {
+				let x = img_width - crop_width;
+				let y = img_height - crop_height;
+				(x, y)
+			}
+			Direction::NorthWest => {
+				let x = 0;
+				let y = 0;
+				(x, y)
+			}
+			Direction::SouthWest => {
+				let x = 0;
+				let y = img_height - crop_height;
+				(x, y)
+			}
+		}
+	}
+}
+
+impl Display for CropTransformer {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		write!(f, "crop({},{},{})", self.w, self.h, self.float)
+	}
+}
+
+impl ImageTransformer for CropTransformer {
+	fn parse_args(args: &str) -> Result<Self, String> {
+		let args: Vec<&str> = args.split(",").collect();
+		if args.len() != 3 {
+			return Err(format!("expected 3 args, got {}", args.len()));
+		}
+
+		let w = args[0].trim().parse::<PixelDim>()?;
+		let h = args[1].trim().parse::<PixelDim>()?;
+
+		let direction = args[2].trim();
+		let direction = Direction::from_str(direction)
+			.map_err(|_err| format!("invalid direction {direction}"))?;
+
+		Ok(Self {
+			w,
+			h,
+			float: direction,
+		})
+	}
+
+	fn transform(&self, input: &mut DynamicImage) {
+		let (img_width, img_height) = (input.width(), input.height());
+		let (crop_width, crop_height) = self.crop_dim(img_width, img_height);
+
+		if (crop_width < img_width || crop_height < img_height) && crop_width > 0 && crop_height > 0
+		{
+			let (x, y) = self.crop_pos(img_width, img_height, crop_width, crop_height);
+			*input = input.crop(x, y, crop_width, crop_height);
+		}
+	}
+}

crates/pile-value/src/extract/blob/image/transform/transformers/maxdim.rs

@@ -0,0 +1,87 @@
+use image::{DynamicImage, imageops::FilterType};
+use std::fmt::Display;
+
+use super::super::{pixeldim::PixelDim, transformers::ImageTransformer};
+
+/// Scale an image until it fits in a configured bounding box.
+#[derive(Debug, Clone, PartialEq)]
+pub struct MaxDimTransformer {
+	w: PixelDim,
+	h: PixelDim,
+}
+
+impl MaxDimTransformer {
+	/// Create a new [MaxDimTransformer] that scales an image down
+	/// until it fits in a box of dimension `w x h`.
+	///
+	/// Images are never scaled up.
+	#[expect(dead_code)]
+	pub fn new(w: PixelDim, h: PixelDim) -> Self {
+		Self { w, h }
+	}
+
+	fn target_dim(&self, img_width: u32, img_height: u32) -> (u32, u32) {
+		let max_width = match self.w {
+			PixelDim::Pixels(w) => Some(w),
+			PixelDim::WidthPercent(pct) => Some(((img_width as f32) * pct / 100.0) as u32),
+			PixelDim::HeightPercent(_) => None,
+		};
+
+		let max_height = match self.h {
+			PixelDim::Pixels(h) => Some(h),
+			PixelDim::HeightPercent(pct) => Some(((img_height as f32) * pct / 100.0) as u32),
+			PixelDim::WidthPercent(_) => None,
+		};
+
+		if max_width.map(|x| img_width <= x).unwrap_or(true)
+			&& max_height.map(|x| img_height <= x).unwrap_or(true)
+		{
+			return (img_width, img_height);
+		}
+
+		let width_ratio = max_width
+			.map(|x| x as f32 / img_width as f32)
+			.unwrap_or(1.0);
+
+		let height_ratio = max_height
+			.map(|x| x as f32 / img_height as f32)
+			.unwrap_or(1.0);
+
+		let ratio = width_ratio.min(height_ratio);
+
+		(
+			(img_width as f32 * ratio) as u32,
+			(img_height as f32 * ratio) as u32,
+		)
+	}
+}
+
+impl Display for MaxDimTransformer {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		write!(f, "maxdim({},{})", self.w, self.h)
+	}
+}
+
+impl ImageTransformer for MaxDimTransformer {
+	fn parse_args(args: &str) -> Result<Self, String> {
+		let args: Vec<&str> = args.split(",").collect();
+		if args.len() != 2 {
+			return Err(format!("expected 2 args, got {}", args.len()));
+		}
+
+		let w = args[0].parse::<PixelDim>()?;
+		let h = args[1].parse::<PixelDim>()?;
+
+		Ok(Self { w, h })
+	}
+
+	fn transform(&self, input: &mut DynamicImage) {
+		let (img_width, img_height) = (input.width(), input.height());
+		let (target_width, target_height) = self.target_dim(img_width, img_height);
+
+		// Only resize if needed
+		if target_width != img_width || target_height != img_height {
+			*input = input.resize(target_width, target_height, FilterType::Lanczos3);
+		}
+	}
+}

crates/pile-value/src/extract/blob/image/transform/transformers/mod.rs

@@ -0,0 +1,26 @@
+//! Defines all transformation steps we can apply to an image
+
+use image::DynamicImage;
+use std::fmt::{Debug, Display};
+
+mod crop;
+pub use crop::*;
+
+mod maxdim;
+pub use maxdim::*;
+
+/// A single transformation that may be applied to an image.
+pub trait ImageTransformer
+where
+	Self: PartialEq,
+	Self: Sized + Clone,
+	Self: Display + Debug,
+{
+	/// Transform the given image in place
+	fn transform(&self, input: &mut DynamicImage);
+
+	/// Parse an arg string.
+	///
+	/// `name({arg_string})`
+	fn parse_args(args: &str) -> Result<Self, String>;
+}

crates/pile-value/src/extract/blob/json.rs

@@ -0,0 +1,88 @@
+use pile_config::Label;
+use pile_io::AsyncReader;
+use std::{
+	collections::HashMap,
+	sync::{Arc, OnceLock},
+};
+
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
+};
+
+fn json_to_pile(value: serde_json::Value) -> PileValue {
+	match value {
+		serde_json::Value::Null => PileValue::Null,
+		serde_json::Value::Bool(b) => PileValue::String(Arc::new(b.to_string().into())),
+		serde_json::Value::Number(n) => PileValue::String(Arc::new(n.to_string().into())),
+		serde_json::Value::String(s) => PileValue::String(Arc::new(s.into())),
+		serde_json::Value::Array(a) => {
+			PileValue::Array(Arc::new(a.into_iter().map(json_to_pile).collect()))
+		}
+		serde_json::Value::Object(_) => PileValue::Null,
+	}
+}
+
+pub struct JsonExtractor {
+	item: BinaryPileValue,
+	output: OnceLock<HashMap<Label, PileValue>>,
+}
+
+impl JsonExtractor {
+	pub fn new(item: &BinaryPileValue) -> Self {
+		Self {
+			item: item.clone(),
+			output: OnceLock::new(),
+		}
+	}
+
+	async fn get_inner(&self) -> Result<&HashMap<Label, PileValue>, std::io::Error> {
+		if let Some(x) = self.output.get() {
+			return Ok(x);
+		}
+
+		let mut reader = self.item.read().await?;
+		let bytes = reader.read_to_end().await?;
+		let json: serde_json::Value = match serde_json::from_slice(&bytes) {
+			Ok(x) => x,
+			Err(_) => return Ok(self.output.get_or_init(HashMap::new)),
+		};
+
+		let output: HashMap<Label, PileValue> = match json {
+			serde_json::Value::Object(map) => map
+				.into_iter()
+				.filter_map(|(k, v)| Label::new(&k).map(|label| (label, json_to_pile(v))))
+				.collect(),
+			_ => HashMap::new(),
+		};
+
+		return Ok(self.output.get_or_init(|| output));
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for JsonExtractor {
+	async fn field(
+		&self,
+		state: &ExtractState,
+		name: &Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		if args.is_some() {
+			return Ok(None);
+		}
+
+		if !state.ignore_mime
+			&& (self.item.mime().type_() != mime::APPLICATION
+				&& self.item.mime().type_() != mime::TEXT)
+		{
+			return Ok(None);
+		}
+
+		Ok(self.get_inner().await?.get(name).cloned())
+	}
+
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		Ok(self.get_inner().await?.keys().cloned().collect())
+	}
+}

crates/pile-value/src/extract/blob/mod.rs

@@ -18,25 +18,38 @@ pub use exif::*;
 mod pdf;
 pub use pdf::*;
 
+mod json;
+pub use json::*;
+
 mod toml;
 use pile_config::Label;
 pub use toml::*;
 
-mod sidecar;
-pub use sidecar::*;
+mod text;
+pub use text::*;
+
+mod image;
+pub use image::*;
+
+mod hash;
+pub use hash::*;
 
 use crate::{
-	extract::{misc::MapExtractor, traits::ObjectExtractor},
-	value::{Item, PileValue},
+	extract::{
+		misc::MapExtractor,
+		traits::{ExtractState, ObjectExtractor},
+	},
+	value::{BinaryPileValue, PileValue},
 };
 
-pub struct ItemExtractor {
+pub struct BinaryExtractor {
 	inner: MapExtractor,
+	image: Arc<ImageExtractor>,
 }
 
-impl ItemExtractor {
+impl BinaryExtractor {
 	#[expect(clippy::unwrap_used)]
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		let inner = MapExtractor {
 			inner: HashMap::from([
 				(
@@ -63,41 +76,50 @@ impl ItemExtractor {
 					Label::new("pdf").unwrap(),
 					PileValue::ObjectExtractor(Arc::new(PdfExtractor::new(item))),
 				),
+				(
+					Label::new("json").unwrap(),
+					PileValue::ObjectExtractor(Arc::new(JsonExtractor::new(item))),
+				),
 				(
 					Label::new("toml").unwrap(),
 					PileValue::ObjectExtractor(Arc::new(TomlExtractor::new(item))),
 				),
 				(
-					Label::new("sidecar").unwrap(),
-					PileValue::ObjectExtractor(Arc::new(SidecarExtractor::new(item))),
+					Label::new("text").unwrap(),
+					PileValue::ObjectExtractor(Arc::new(TextExtractor::new(item))),
+				),
+				(
+					Label::new("hash").unwrap(),
+					PileValue::ObjectExtractor(Arc::new(HashExtractor::new(item))),
 				),
 			]),
 		};
 
-		Self { inner }
+		Self {
+			inner,
+			image: Arc::new(ImageExtractor::new(item)),
+		}
 	}
 }
 
 #[async_trait::async_trait]
-impl ObjectExtractor for ItemExtractor {
+impl ObjectExtractor for BinaryExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &pile_config::Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
-		self.inner.field(name, args).await
+		if self.image.fields().await?.contains(name) {
+			self.image.field(state, name, args).await
+		} else {
+			self.inner.field(state, name, args).await
+		}
 	}
 
-	#[expect(clippy::unwrap_used)]
 	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
-		return Ok(vec![
-			Label::new("flac").unwrap(),
-			Label::new("id3").unwrap(),
-			Label::new("fs").unwrap(),
-			Label::new("epub").unwrap(),
-			Label::new("exif").unwrap(),
-			Label::new("pdf").unwrap(),
-			Label::new("sidecar").unwrap(),
-		]);
+		let mut fields = self.inner.fields().await?;
+		fields.extend(self.image.fields().await?);
+		Ok(fields)
 	}
 }

crates/pile-value/src/extract/blob/pdf/mod.rs

@@ -14,8 +14,8 @@ mod pdf_text;
 pub use pdf_text::*;
 
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
 };
 
 pub struct PdfExtractor {
@@ -26,7 +26,7 @@ pub struct PdfExtractor {
 }
 
 impl PdfExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			text: Arc::new(PdfTextExtractor::new(item)),
 			meta: Arc::new(PdfMetaExtractor::new(item)),
@@ -40,17 +40,18 @@ impl PdfExtractor {
 impl ObjectExtractor for PdfExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &pile_config::Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
 		trace!(
 			?args,
-			key = self.text.item.key().as_str(),
+			item = ?self.text.item,
 			"Getting field {name:?} from PdfExtractor",
 		);
 
 		match (name.as_str(), args) {
-			("text", args) => self.text.field(name, args).await,
+			("text", args) => self.text.field(state, name, args).await,
 			("meta", None) => Ok(Some(PileValue::ObjectExtractor(self.meta.clone()))),
 			#[cfg(feature = "pdfium")]
 			("pages", None) => Ok(Some(PileValue::ListExtractor(self.pages.clone()))),
@@ -67,4 +68,33 @@ impl ObjectExtractor for PdfExtractor {
 			Label::new("pages").unwrap(),
 		])
 	}
+
+	async fn to_json(&self, state: &ExtractState) -> Result<serde_json::Value, std::io::Error> {
+		let keys = self.fields().await?;
+		let mut map = serde_json::Map::new();
+		for k in &keys {
+			let v = match self.field(state, k, None).await? {
+				Some(x) => x,
+				None => continue,
+			};
+
+			if k.as_str() == "text" {
+				map.insert(
+					k.to_string(),
+					serde_json::Value::String(format!(
+						"<String ({} bytes)",
+						match v {
+							PileValue::String(x) => x.len(),
+							_ => 0,
+						}
+					)),
+				);
+				continue;
+			}
+
+			map.insert(k.to_string(), Box::pin(v.to_json(state)).await?);
+		}
+
+		Ok(serde_json::Value::Object(map))
+	}
 }

crates/pile-value/src/extract/blob/pdf/pdf_meta.rs

@@ -1,6 +1,7 @@
 use pdf::file::FileOptions;
 use pdf::primitive::{Date, TimeRel};
 use pile_config::Label;
+use pile_io::SyncReadBridge;
 use std::{
 	collections::HashMap,
 	io::BufReader,
@@ -8,18 +9,19 @@ use std::{
 };
 use tracing::trace;
 
+use crate::value::BinaryPileValue;
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::PileValue,
 };
 
 pub struct PdfMetaExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl PdfMetaExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -81,7 +83,7 @@ impl PdfMetaExtractor {
 		let (page_count, raw_meta) = match raw_meta {
 			Ok(x) => x,
 			Err(error) => {
-				trace!(message = "Could not process pdf", ?error, key = ?self.item.key());
+				trace!(message = "Could not process pdf", ?error, item = ?self.item);
 				return Ok(self.output.get_or_init(HashMap::new));
 			}
 		};
@@ -124,12 +126,18 @@ fn format_date(d: &Date) -> String {
 impl ObjectExtractor for PdfMetaExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
 		if args.is_some() {
 			return Ok(None);
 		}
+
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/pdf" {
+			return Ok(None);
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 

crates/pile-value/src/extract/blob/pdf/pdf_pages.rs

@@ -1,5 +1,6 @@
 use image::ImageFormat;
 use pdfium_render::prelude::*;
+use pile_io::SyncReadBridge;
 use std::{
 	io::{BufReader, Cursor},
 	sync::Arc,
@@ -7,16 +8,16 @@ use std::{
 use tracing::trace;
 
 use crate::{
-	extract::traits::ListExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ListExtractor},
+	value::{ArcBytes, BinaryPileValue, PileValue},
 };
 
 pub struct PdfPagesExtractor {
-	item: Item,
+	item: BinaryPileValue,
 }
 
 impl PdfPagesExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self { item: item.clone() }
 	}
 
@@ -34,12 +35,20 @@ impl PdfPagesExtractor {
 
 #[async_trait::async_trait]
 impl ListExtractor for PdfPagesExtractor {
-	async fn get(&self, idx: usize) -> Result<Option<PileValue>, std::io::Error> {
+	async fn get(
+		&self,
+		state: &ExtractState,
+		idx: usize,
+	) -> Result<Option<PileValue>, std::io::Error> {
 		trace!(
-			key = self.item.key().as_str(),
+			item = ?self.item,
 			"Getting index {idx} from PdfPagesExtractor",
 		);
 
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/pdf" {
+			return Ok(None);
+		}
+
 		let bytes = self.get_bytes().await?;
 		let png = tokio::task::spawn_blocking(move || {
 			let pdfium = Pdfium::default();
@@ -69,19 +78,23 @@ impl ListExtractor for PdfPagesExtractor {
 
 		let value = match png {
 			Ok(None) => return Ok(None),
-			Ok(Some(bytes)) => PileValue::Blob {
+			Ok(Some(bytes)) => PileValue::Binary(BinaryPileValue::Blob {
 				mime: mime::IMAGE_PNG,
-				bytes: Arc::new(bytes),
-			},
+				bytes: ArcBytes(Arc::new(bytes)),
+			}),
 			Err(error) => {
-				trace!(message = "Could not render pdf page", ?error, idx, key = ?self.item.key());
+				trace!(message = "Could not render pdf page", ?error, idx, item = ?self.item);
 				PileValue::Null
 			}
 		};
 		Ok(Some(value))
 	}
 
-	async fn len(&self) -> Result<usize, std::io::Error> {
+	async fn len(&self, state: &ExtractState) -> Result<usize, std::io::Error> {
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/pdf" {
+			return Ok(0);
+		}
+
 		let bytes = self.get_bytes().await?;
 		let count = tokio::task::spawn_blocking(move || {
 			let pdfium = Pdfium::default();
@@ -95,7 +108,7 @@ impl ListExtractor for PdfPagesExtractor {
 		match count {
 			Ok(n) => Ok(n),
 			Err(error) => {
-				trace!(message = "Could not read pdf page count", ?error, key = ?self.item.key());
+				trace!(message = "Could not read pdf page count", ?error, item = ?self.item);
 				Ok(0)
 			}
 		}
@@ -103,10 +116,10 @@ impl ListExtractor for PdfPagesExtractor {
 
 	// Override, extracting all pages is very slow,
 	// and we can't display binary in json anyway
-	async fn to_json(&self) -> Result<serde_json::Value, std::io::Error> {
+	async fn to_json(&self, state: &ExtractState) -> Result<serde_json::Value, std::io::Error> {
 		Ok(serde_json::Value::String(format!(
 			"<PdfPages ({} pages)>",
-			self.len().await?
+			self.len(state).await?
 		)))
 	}
 }

crates/pile-value/src/extract/blob/pdf/pdf_text.rs

@@ -1,6 +1,7 @@
 use pdf::content::{Op, TextDrawAdjusted};
 use pdf::file::FileOptions;
 use pile_config::Label;
+use pile_io::SyncReadBridge;
 use std::{
 	collections::HashMap,
 	io::BufReader,
@@ -8,18 +9,19 @@ use std::{
 };
 use tracing::trace;
 
+use crate::value::BinaryPileValue;
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue, SyncReadBridge},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::PileValue,
 };
 
 pub struct PdfTextExtractor {
-	pub(super) item: Item,
+	pub(super) item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl PdfTextExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -85,7 +87,7 @@ impl PdfTextExtractor {
 		let raw_text = match raw_text {
 			Ok(x) => x,
 			Err(error) => {
-				trace!(message = "Could not process pdf", ?error, key = ?self.item.key());
+				trace!(message = "Could not process pdf", ?error, item = ?self.item);
 				return Ok(self.output.get_or_init(HashMap::new));
 			}
 		};
@@ -104,6 +106,7 @@ impl PdfTextExtractor {
 impl ObjectExtractor for PdfTextExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -111,6 +114,10 @@ impl ObjectExtractor for PdfTextExtractor {
 			return Ok(None);
 		}
 
+		if !state.ignore_mime && self.item.mime().essence_str() != "application/pdf" {
+			return Ok(None);
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 

crates/pile-value/src/extract/blob/text.rs

@@ -0,0 +1,68 @@
+use pile_config::Label;
+use pile_io::AsyncReader;
+use std::sync::{Arc, OnceLock};
+
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
+};
+
+pub struct TextExtractor {
+	item: BinaryPileValue,
+	output: OnceLock<PileValue>,
+}
+
+impl TextExtractor {
+	pub fn new(item: &BinaryPileValue) -> Self {
+		Self {
+			item: item.clone(),
+			output: OnceLock::new(),
+		}
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for TextExtractor {
+	async fn field(
+		&self,
+		state: &ExtractState,
+		name: &Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		if args.is_some() {
+			return Ok(None);
+		}
+
+		if !state.ignore_mime
+			&& (self.item.mime().type_() != mime::TEXT
+				&& self.item.mime().type_() != mime::APPLICATION)
+		{
+			return Ok(None);
+		}
+
+		if name.as_str() != "text" {
+			return Ok(None);
+		}
+
+		{
+			if let Some(x) = self.output.get() {
+				return Ok(Some(x.clone()));
+			}
+
+			let mut reader = self.item.read().await?;
+			let bytes = reader.read_to_end().await?;
+			let string = String::from_utf8(bytes).ok();
+			let value = match string {
+				Some(x) => PileValue::String(Arc::new(x.into())),
+				None => PileValue::Null,
+			};
+
+			return Ok(Some(self.output.get_or_init(|| value).clone()));
+		}
+	}
+
+	#[expect(clippy::unwrap_used)]
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		Ok(vec![Label::new("text").unwrap()])
+	}
+}

crates/pile-value/src/extract/blob/toml.rs

@@ -1,12 +1,13 @@
 use pile_config::Label;
+use pile_io::AsyncReader;
 use std::{
 	collections::HashMap,
 	sync::{Arc, OnceLock},
 };
 
 use crate::{
-	extract::traits::ObjectExtractor,
-	value::{AsyncReader, Item, PileValue},
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::{BinaryPileValue, PileValue},
 };
 
 fn toml_to_pile(value: toml::Value) -> PileValue {
@@ -24,12 +25,12 @@ fn toml_to_pile(value: toml::Value) -> PileValue {
 }
 
 pub struct TomlExtractor {
-	item: Item,
+	item: BinaryPileValue,
 	output: OnceLock<HashMap<Label, PileValue>>,
 }
 
 impl TomlExtractor {
-	pub fn new(item: &Item) -> Self {
+	pub fn new(item: &BinaryPileValue) -> Self {
 		Self {
 			item: item.clone(),
 			output: OnceLock::new(),
@@ -64,6 +65,7 @@ impl TomlExtractor {
 impl ObjectExtractor for TomlExtractor {
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -71,6 +73,10 @@ impl ObjectExtractor for TomlExtractor {
 			return Ok(None);
 		}
 
+		if !state.ignore_mime && self.item.mime().type_() != mime::TEXT {
+			return Ok(None);
+		}
+
 		Ok(self.get_inner().await?.get(name).cloned())
 	}
 

crates/pile-value/src/extract/item.rs

@@ -0,0 +1,58 @@
+use std::{collections::HashMap, sync::Arc};
+
+use pile_config::Label;
+
+use crate::{
+	extract::{
+		misc::MapExtractor,
+		traits::{ExtractState, ObjectExtractor},
+	},
+	value::{Item, PileValue},
+};
+
+pub struct ItemExtractor {
+	inner: MapExtractor,
+}
+
+impl ItemExtractor {
+	pub fn new(item: &Item) -> Self {
+		let files = {
+			let Item::File { files, .. } = &item;
+			let mut inner = HashMap::new();
+			for f in files {
+				inner.insert(f.0.clone(), f.1.clone());
+			}
+			PileValue::ObjectExtractor(Arc::new(MapExtractor { inner }))
+		};
+
+		#[expect(clippy::unwrap_used)]
+		let inner = MapExtractor {
+			inner: HashMap::from([
+				(Label::new("files").unwrap(), files),
+				(
+					Label::new("key").unwrap(),
+					PileValue::String(Arc::new(item.key())),
+				),
+			]),
+		};
+
+		Self { inner }
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for ItemExtractor {
+	async fn field(
+		&self,
+		state: &ExtractState,
+		name: &pile_config::Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		self.inner.field(state, name, args).await
+	}
+
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		let fields = self.inner.fields().await?;
+		Ok(fields)
+	}
+}

crates/pile-value/src/extract/item/epub/mod.rs

@@ -1,56 +0,0 @@
-use pile_config::Label;
-use std::sync::Arc;
-
-mod epub_meta;
-pub use epub_meta::*;
-
-mod epub_text;
-pub use epub_text::*;
-
-use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue},
-};
-
-pub struct EpubExtractor {
-	text: Arc<EpubTextExtractor>,
-	meta: Arc<EpubMetaExtractor>,
-}
-
-impl EpubExtractor {
-	pub fn new(item: &Item) -> Self {
-		Self {
-			text: Arc::new(EpubTextExtractor::new(item)),
-			meta: Arc::new(EpubMetaExtractor::new(item)),
-		}
-	}
-}
-
-#[async_trait::async_trait]
-impl ObjectExtractor for EpubExtractor {
-	async fn field(
-		&self,
-		name: &pile_config::Label,
-		args: Option<&str>,
-	) -> Result<Option<PileValue>, std::io::Error> {
-		match (name.as_str(), args) {
-			("text", args) => Ok(Some(
-				self.text
-					.field(name, args)
-					.await
-					.map(|x| x.unwrap_or(PileValue::Null))?,
-			)),
-
-			("meta", None) => Ok(Some(PileValue::ObjectExtractor(self.meta.clone()))),
-			_ => Ok(None),
-		}
-	}
-
-	#[expect(clippy::unwrap_used)]
-	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
-		Ok(vec![
-			Label::new("text").unwrap(),
-			Label::new("meta").unwrap(),
-		])
-	}
-}

crates/pile-value/src/extract/item/sidecar.rs

@@ -1,56 +0,0 @@
-use pile_config::Label;
-use std::sync::OnceLock;
-use tracing::trace;
-
-use super::TomlExtractor;
-use crate::{
-	extract::traits::ObjectExtractor,
-	value::{Item, PileValue},
-};
-
-pub struct SidecarExtractor {
-	item: Item,
-	output: OnceLock<Option<TomlExtractor>>,
-}
-
-impl SidecarExtractor {
-	pub fn new(item: &Item) -> Self {
-		Self {
-			item: item.clone(),
-			output: OnceLock::new(),
-		}
-	}
-}
-
-#[async_trait::async_trait]
-impl ObjectExtractor for SidecarExtractor {
-	async fn field(
-		&self,
-		name: &Label,
-		args: Option<&str>,
-	) -> Result<Option<PileValue>, std::io::Error> {
-		trace!(
-			?args,
-			key = self.item.key().as_str(),
-			"Getting field {name:?} from SidecarExtractor",
-		);
-
-		match self
-			.output
-			.get_or_init(|| self.item.sidecar().map(TomlExtractor::new))
-		{
-			Some(x) => Ok(x.field(name, args).await?),
-			None => Ok(Some(PileValue::Null)),
-		}
-	}
-
-	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
-		match self
-			.output
-			.get_or_init(|| self.item.sidecar().map(TomlExtractor::new))
-		{
-			Some(x) => Ok(x.fields().await?),
-			None => Ok(Vec::new()),
-		}
-	}
-}

crates/pile-value/src/extract/misc/list.rs

@@ -1,6 +1,9 @@
 use std::sync::Arc;
 
-use crate::{extract::traits::ListExtractor, value::PileValue};
+use crate::{
+	extract::traits::{ExtractState, ListExtractor},
+	value::PileValue,
+};
 
 pub struct ArrayExtractor {
 	inner: Arc<Vec<PileValue>>,
@@ -14,11 +17,15 @@ impl ArrayExtractor {
 
 #[async_trait::async_trait]
 impl ListExtractor for ArrayExtractor {
-	async fn get(&self, idx: usize) -> Result<Option<PileValue>, std::io::Error> {
+	async fn get(
+		&self,
+		_state: &ExtractState,
+		idx: usize,
+	) -> Result<Option<PileValue>, std::io::Error> {
 		Ok(self.inner.get(idx).cloned())
 	}
 
-	async fn len(&self) -> Result<usize, std::io::Error> {
+	async fn len(&self, _state: &ExtractState) -> Result<usize, std::io::Error> {
 		Ok(self.inner.len())
 	}
 }

crates/pile-value/src/extract/misc/map.rs

@@ -1,7 +1,10 @@
 use pile_config::Label;
 use std::collections::HashMap;
 
-use crate::{extract::traits::ObjectExtractor, value::PileValue};
+use crate::{
+	extract::traits::{ExtractState, ObjectExtractor},
+	value::PileValue,
+};
 
 #[derive(Default)]
 pub struct MapExtractor {
@@ -12,6 +15,7 @@ pub struct MapExtractor {
 impl ObjectExtractor for MapExtractor {
 	async fn field(
 		&self,
+		_state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {

crates/pile-value/src/extract/misc/vec.rs

@@ -1,4 +1,7 @@
-use crate::{extract::traits::ListExtractor, value::PileValue};
+use crate::{
+	extract::traits::{ExtractState, ListExtractor},
+	value::PileValue,
+};
 
 #[derive(Default)]
 pub struct VecExtractor {
@@ -7,11 +10,15 @@ pub struct VecExtractor {
 
 #[async_trait::async_trait]
 impl ListExtractor for VecExtractor {
-	async fn get(&self, idx: usize) -> Result<Option<PileValue>, std::io::Error> {
+	async fn get(
+		&self,
+		_state: &ExtractState,
+		idx: usize,
+	) -> Result<Option<PileValue>, std::io::Error> {
 		Ok(self.inner.get(idx).cloned())
 	}
 
-	async fn len(&self) -> Result<usize, std::io::Error> {
+	async fn len(&self, _state: &ExtractState) -> Result<usize, std::io::Error> {
 		Ok(self.inner.len())
 	}
 }

crates/pile-value/src/extract/mod.rs

@@ -1,4 +1,6 @@
+pub mod blob;
 pub mod item;
 pub mod misc;
+pub mod regex;
 pub mod string;
 pub mod traits;

crates/pile-value/src/extract/regex.rs

@@ -0,0 +1,104 @@
+use std::sync::Arc;
+
+use pile_config::Label;
+use regex::Regex;
+use smartstring::{LazyCompact, SmartString};
+
+use crate::{
+	extract::traits::{ExtractState, ListExtractor, ObjectExtractor},
+	value::PileValue,
+};
+
+struct RegexData {
+	regex: Arc<Regex>,
+	/// Captured substrings indexed by group index (0 = whole match).
+	captures: Vec<Option<Arc<SmartString<LazyCompact>>>>,
+}
+
+impl RegexData {
+	fn new(regex: Arc<Regex>, input: &str) -> Option<Self> {
+		let caps = regex.captures(input)?;
+		let captures = caps
+			.iter()
+			.map(|m| m.map(|m| Arc::new(m.as_str().into())))
+			.collect();
+		Some(Self { regex, captures })
+	}
+}
+
+/// Exposes named capture groups as object fields.
+pub struct RegexExtractor(Arc<RegexData>);
+
+impl RegexExtractor {
+	/// Run `regex` against `input`. Returns `None` if there is no match.
+	pub fn new(regex: Arc<Regex>, input: &str) -> Option<Self> {
+		Some(Self(Arc::new(RegexData::new(regex, input)?)))
+	}
+}
+
+#[async_trait::async_trait]
+impl ObjectExtractor for RegexExtractor {
+	async fn field(
+		&self,
+		_state: &ExtractState,
+		name: &Label,
+		args: Option<&str>,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		if args.is_some() {
+			return Ok(None);
+		}
+
+		let Some(idx) = self
+			.0
+			.regex
+			.capture_names()
+			.position(|n| n == Some(name.as_str()))
+		else {
+			return Ok(None);
+		};
+
+		Ok(Some(
+			match self.0.captures.get(idx).and_then(|v| v.as_ref()) {
+				Some(s) => PileValue::String(s.clone()),
+				None => PileValue::Null,
+			},
+		))
+	}
+
+	async fn fields(&self) -> Result<Vec<Label>, std::io::Error> {
+		#[expect(clippy::unwrap_used)]
+		Ok(self
+			.0
+			.regex
+			.capture_names()
+			.flatten()
+			.map(|n| Label::new(n).unwrap())
+			.collect())
+	}
+
+	fn as_list(&self) -> Option<Arc<dyn ListExtractor>> {
+		Some(Arc::new(RegexExtractor(self.0.clone())))
+	}
+}
+
+#[async_trait::async_trait]
+impl ListExtractor for RegexExtractor {
+	async fn get(
+		&self,
+		_state: &ExtractState,
+		idx: usize,
+	) -> Result<Option<PileValue>, std::io::Error> {
+		let raw_idx = idx + 1;
+		let Some(slot) = self.0.captures.get(raw_idx) else {
+			return Ok(None);
+		};
+		Ok(Some(match slot {
+			Some(s) => PileValue::String(s.clone()),
+			None => PileValue::Null,
+		}))
+	}
+
+	async fn len(&self, _state: &ExtractState) -> Result<usize, std::io::Error> {
+		Ok(self.0.captures.len().saturating_sub(1))
+	}
+}

crates/pile-value/src/extract/string.rs

@@ -1,8 +1,15 @@
 use pile_config::Label;
+use regex::Regex;
 use smartstring::{LazyCompact, SmartString};
 use std::sync::Arc;
 
-use crate::{extract::traits::ObjectExtractor, value::PileValue};
+use crate::{
+	extract::{
+		regex::RegexExtractor,
+		traits::{ExtractState, ObjectExtractor},
+	},
+	value::PileValue,
+};
 
 pub struct StringExtractor {
 	item: Arc<SmartString<LazyCompact>>,
@@ -18,6 +25,7 @@ impl StringExtractor {
 impl ObjectExtractor for StringExtractor {
 	async fn field(
 		&self,
+		_state: &ExtractState,
 		name: &Label,
 		args: Option<&str>,
 	) -> Result<Option<PileValue>, std::io::Error> {
@@ -63,6 +71,18 @@ impl ObjectExtractor for StringExtractor {
 					.collect(),
 			))),
 
+			("regex", Some(pattern)) => {
+				let Ok(re) = Regex::new(pattern) else {
+					return Ok(None);
+				};
+				Some(
+					match RegexExtractor::new(Arc::new(re), self.item.as_str()) {
+						Some(ext) => PileValue::ObjectExtractor(Arc::new(ext)),
+						None => PileValue::Null,
+					},
+				)
+			}
+
 			_ => None,
 		})
 	}
@@ -74,6 +94,9 @@ impl ObjectExtractor for StringExtractor {
 			Label::new("upper").unwrap(),
 			Label::new("lower").unwrap(),
 			Label::new("nonempty").unwrap(),
+			Label::new("trimprefix").unwrap(),
+			Label::new("trimsuffix").unwrap(),
+			Label::new("split").unwrap(),
 		]);
 	}
 }
@@ -89,7 +112,10 @@ mod tests {
 
 	#[expect(clippy::unwrap_used)]
 	async fn field(ext: &StringExtractor, name: &str, args: Option<&str>) -> Option<PileValue> {
-		ext.field(&Label::new(name).unwrap(), args).await.unwrap()
+		let state = ExtractState { ignore_mime: false };
+		ext.field(&state, &Label::new(name).unwrap(), args)
+			.await
+			.unwrap()
 	}
 
 	fn string(v: Option<PileValue>) -> Option<String> {

crates/pile-value/src/extract/traits.rs

@@ -1,3 +1,13 @@
+#[derive(Debug, Clone)]
+pub struct ExtractState {
+	/// If true, extract all fields from all items.
+	/// Do not pre-filter using mime type.
+	///
+	/// This may detect additional fields, but
+	/// makes extraction take much longer
+	pub ignore_mime: bool,
+}
+
 /// An attachment that extracts metadata from an [Item].
 ///
 /// Metadata is exposed as an immutable map of {label: value},
@@ -15,6 +25,7 @@ pub trait ObjectExtractor: Send + Sync {
 	/// this fn should return `Ok(Some(None))`.
 	async fn field(
 		&self,
+		state: &ExtractState,
 		name: &pile_config::Label,
 		args: Option<&str>,
 	) -> Result<Option<crate::value::PileValue>, std::io::Error>;
@@ -24,16 +35,21 @@ pub trait ObjectExtractor: Send + Sync {
 	/// and [None] for all others.
 	async fn fields(&self) -> Result<Vec<pile_config::Label>, std::io::Error>;
 
+	/// Return a list view of this extractor, if supported.
+	fn as_list(&self) -> Option<std::sync::Arc<dyn ListExtractor>> {
+		None
+	}
+
 	/// Convert this to a JSON value.
-	async fn to_json(&self) -> Result<serde_json::Value, std::io::Error> {
+	async fn to_json(&self, state: &ExtractState) -> Result<serde_json::Value, std::io::Error> {
 		let keys = self.fields().await?;
 		let mut map = serde_json::Map::new();
 		for k in &keys {
-			let v = match self.field(k, None).await? {
+			let v = match self.field(state, k, None).await? {
 				Some(x) => x,
 				None => continue,
 			};
-			map.insert(k.to_string(), Box::pin(v.to_json()).await?);
+			map.insert(k.to_string(), Box::pin(v.to_json(state)).await?);
 		}
 
 		Ok(serde_json::Value::Object(map))
@@ -49,25 +65,25 @@ pub trait ListExtractor: Send + Sync {
 	/// Indices start at zero, and must be consecutive.
 	/// - returns `None` if `idx` is out of range
 	/// - returns `Some(Null)` if `None` is at `idx`
-	async fn get(&self, idx: usize) -> Result<Option<crate::value::PileValue>, std::io::Error>;
+	async fn get(
+		&self,
+		state: &ExtractState,
+		idx: usize,
+	) -> Result<Option<crate::value::PileValue>, std::io::Error>;
 
-	async fn len(&self) -> Result<usize, std::io::Error>;
-
-	async fn is_empty(&self) -> Result<bool, std::io::Error> {
-		Ok(self.len().await? == 0)
-	}
+	async fn len(&self, state: &ExtractState) -> Result<usize, std::io::Error>;
 
 	/// Convert this list to a JSON value.
-	async fn to_json(&self) -> Result<serde_json::Value, std::io::Error> {
-		let len = self.len().await?;
+	async fn to_json(&self, state: &ExtractState) -> Result<serde_json::Value, std::io::Error> {
+		let len = self.len(state).await?;
 		let mut list = Vec::with_capacity(len);
 		for i in 0..len {
 			#[expect(clippy::expect_used)]
 			let v = self
-				.get(i)
+				.get(state, i)
 				.await?
 				.expect("value must be present according to length");
-			list.push(Box::pin(v.to_json()).await?);
+			list.push(Box::pin(v.to_json(state)).await?);
 		}
 
 		Ok(serde_json::Value::Array(list))

crates/pile-value/src/source/dir.rs

@@ -1,131 +1,137 @@
 use chrono::{DateTime, Utc};
 use pile_config::Label;
-use std::{path::PathBuf, sync::Arc};
-use tokio_stream::wrappers::ReceiverStream;
+use regex::Regex;
+use smartstring::{LazyCompact, SmartString};
+use std::{
+	collections::{BTreeMap, HashMap},
+	path::PathBuf,
+	sync::{Arc, OnceLock},
+};
 use walkdir::WalkDir;
 
 use crate::{
 	source::{DataSource, misc::path_ts_latest},
-	value::Item,
+	value::{BinaryPileValue, Item, PileValue},
 };
 
 #[derive(Debug)]
 pub struct DirDataSource {
 	pub name: Label,
 	pub dir: PathBuf,
-
-	pub sidecars: bool,
+	pub base_pattern: Regex,
+	pub files: HashMap<Label, String>,
+	pub index: OnceLock<BTreeMap<SmartString<LazyCompact>, Item>>,
 }
 
 impl DirDataSource {
-	pub fn new(name: &Label, dir: PathBuf, sidecars: bool) -> Self {
-		Self {
+	pub async fn new(
+		name: &Label,
+		dir: PathBuf,
+		base_pattern: Regex,
+		files: HashMap<Label, String>,
+	) -> Result<Arc<Self>, std::io::Error> {
+		let source = Arc::new(Self {
 			name: name.clone(),
 			dir,
-			sidecars,
+			base_pattern,
+			files,
+			index: OnceLock::new(),
+		});
+
+		let mut index = BTreeMap::new();
+		'entry: for entry in WalkDir::new(&source.dir) {
+			let entry = match entry {
+				Err(e) => {
+					let msg = format!("walkdir error: {e:?}");
+					let err = e.into_io_error().unwrap_or(std::io::Error::other(msg));
+					return Err(err);
+				}
+				Ok(e) => e,
+			};
+
+			if entry.file_type().is_dir() {
+				continue;
+			}
+
+			let path = entry.into_path();
+			let rel_path = match path.strip_prefix(&source.dir) {
+				Ok(p) => p,
+				Err(_) => continue 'entry,
+			};
+			let path_str = match rel_path.to_str() {
+				Some(x) => x,
+				None => continue 'entry,
+			};
+
+			let captures = match source.base_pattern.captures(path_str) {
+				Some(c) => c,
+				None => continue 'entry,
+			};
+			let base = match captures.get(1) {
+				Some(m) => m.as_str(),
+				None => continue 'entry,
+			};
+
+			let key: SmartString<LazyCompact> = base.into();
+			if index.contains_key(&key) {
+				continue 'entry;
+			}
+
+			let mut item_files = HashMap::new();
+			for (label, template) in &source.files {
+				let file_path = source.dir.join(template.replace("{base}", base));
+				if file_path.exists() {
+					let mime = mime_guess::from_path(&file_path).first_or_octet_stream();
+					item_files.insert(
+						label.clone(),
+						PileValue::Binary(BinaryPileValue::File {
+							mime,
+							path: file_path,
+						}),
+					);
+				}
+			}
+
+			index.insert(
+				key.clone(),
+				Item::File {
+					key,
+					source: Arc::clone(&source),
+					files: item_files,
+				},
+			);
 		}
+
+		source.index.get_or_init(|| index);
+		Ok(source)
 	}
 }
 
 impl DataSource for Arc<DirDataSource> {
-	async fn get(&self, key: &str) -> Result<Option<Item>, std::io::Error> {
-		let key = match key.parse::<PathBuf>() {
-			Ok(x) => self.dir.join(x),
-			Err(_) => return Ok(None),
-		};
-
-		if !key.is_file() {
-			return Ok(None);
-		}
-
-		// Ignore toml files if sidecars are enabled
-		if self.sidecars && key.extension().and_then(|x| x.to_str()) == Some("toml") {
-			return Ok(None);
-		}
-
-		return Ok(Some(Item::File {
-			source: Arc::clone(self),
-			mime: mime_guess::from_path(&key).first_or_octet_stream(),
-			path: key.clone(),
-			sidecar: self.sidecars.then(|| {
-				Box::new(Item::File {
-					source: Arc::clone(self),
-					mime: mime_guess::from_path(key.with_extension("toml")).first_or_octet_stream(),
-					path: key.with_extension("toml"),
-					sidecar: None,
-				})
-			}),
-		}));
+	#[expect(clippy::expect_used)]
+	fn len(&self) -> usize {
+		self.index.get().expect("index should be initialized").len()
 	}
 
-	fn iter(&self) -> ReceiverStream<Result<Item, std::io::Error>> {
-		let (tx, rx) = tokio::sync::mpsc::channel(64);
-		let source = Arc::clone(self);
+	#[expect(clippy::expect_used)]
+	async fn get(&self, key: &str) -> Result<Option<Item>, std::io::Error> {
+		return Ok(self
+			.index
+			.get()
+			.expect("index should be initialized")
+			.get(key)
+			.cloned());
+	}
 
-		let dir = self.dir.clone();
-		tokio::task::spawn_blocking(move || {
-			for entry in WalkDir::new(dir) {
-				let entry = match entry {
-					Err(e) => {
-						let msg = format!("walkdir error: {e:?}");
-						let err = e.into_io_error().unwrap_or(std::io::Error::other(msg));
-						if tx.blocking_send(Err(err)).is_err() {
-							return;
-						}
-						continue;
-					}
-					Ok(e) => e,
-				};
-
-				if entry.file_type().is_dir() {
-					continue;
-				}
-
-				let path = entry.into_path();
-
-				let item = match path.extension().and_then(|x| x.to_str()) {
-					None => continue,
-					Some("toml") if source.sidecars => continue,
-					Some(_) => Item::File {
-						source: Arc::clone(&source),
-						mime: mime_guess::from_path(&path).first_or_octet_stream(),
-						path: path.clone(),
-
-						sidecar: source.sidecars.then(|| {
-							Box::new(Item::File {
-								source: Arc::clone(&source),
-								mime: mime_guess::from_path(path.with_extension("toml"))
-									.first_or_octet_stream(),
-								path: path.with_extension("toml"),
-								sidecar: None,
-							})
-						}),
-					},
-				};
-
-				if tx.blocking_send(Ok(item)).is_err() {
-					return;
-				}
-			}
-		});
-
-		ReceiverStream::new(rx)
+	#[expect(clippy::expect_used)]
+	fn iter(&self) -> impl Iterator<Item = &Item> {
+		self.index
+			.get()
+			.expect("index should be initialized")
+			.values()
 	}
 
 	async fn latest_change(&self) -> Result<Option<DateTime<Utc>>, std::io::Error> {
-		let mut ts: Option<DateTime<Utc>> = None;
-
-		if !self.dir.exists() {
-			return Ok(None);
-		}
-
-		let new = path_ts_latest(&self.dir)?;
-		match (ts, new) {
-			(_, None) => {}
-			(None, Some(new)) => ts = Some(new),
-			(Some(old), Some(new)) => ts = Some(old.max(new)),
-		};
-
-		return Ok(ts);
+		path_ts_latest(&self.dir)
 	}
 }

crates/pile-value/src/source/mod.rs

@@ -1,27 +1,29 @@
 mod dir;
 pub use dir::*;
 
-mod s3;
-pub use s3::*;
-
 pub mod misc;
 
-use chrono::{DateTime, Utc};
-use tokio_stream::wrappers::ReceiverStream;
-
 /// A read-only set of [Item]s.
 pub trait DataSource {
+	/// Get the number of items in this source
+	fn len(&self) -> usize;
+
 	/// Get an item from this datasource
 	fn get(
 		&self,
 		key: &str,
 	) -> impl Future<Output = Result<Option<crate::value::Item>, std::io::Error>> + Send;
 
-	/// Iterate over all items in this source in an arbitrary order
-	fn iter(&self) -> ReceiverStream<Result<crate::value::Item, std::io::Error>>;
+	/// Iterate over all items in this source in sorted key order
+	fn iter(&self) -> impl Iterator<Item = &crate::value::Item>;
+
+	/// Iterate over a page of items, sorted by key
+	fn iter_page(&self, offset: usize, limit: usize) -> impl Iterator<Item = &crate::value::Item> {
+		self.iter().skip(offset).take(limit)
+	}
 
 	/// Return the time of the latest change to the data in this source
 	fn latest_change(
 		&self,
-	) -> impl Future<Output = Result<Option<DateTime<Utc>>, std::io::Error>> + Send;
+	) -> impl Future<Output = Result<Option<chrono::DateTime<chrono::Utc>>, std::io::Error>> + Send;
 }

crates/pile-value/src/source/s3.rs

@@ -1,255 +0,0 @@
-use aws_sdk_s3::config::{BehaviorVersion, Credentials, Region};
-use chrono::{DateTime, Utc};
-use pile_config::{Label, S3Credentials};
-use smartstring::{LazyCompact, SmartString};
-use std::sync::Arc;
-use tokio_stream::wrappers::ReceiverStream;
-
-use crate::{source::DataSource, value::Item};
-
-#[derive(Debug)]
-pub struct S3DataSource {
-	pub name: Label,
-	pub bucket: SmartString<LazyCompact>,
-	pub prefix: Option<SmartString<LazyCompact>>,
-	pub sidecars: bool,
-	pub client: Arc<aws_sdk_s3::Client>,
-}
-
-impl S3DataSource {
-	pub fn new(
-		name: &Label,
-		bucket: String,
-		prefix: Option<String>,
-		endpoint: Option<String>,
-		region: String,
-		credentials: &S3Credentials,
-		sidecars: bool,
-	) -> Result<Self, std::io::Error> {
-		let client = {
-			let creds = Credentials::new(
-				&credentials.access_key_id,
-				&credentials.secret_access_key,
-				None,
-				None,
-				"pile",
-			);
-
-			let mut s3_config = aws_sdk_s3::config::Builder::new()
-				.behavior_version(BehaviorVersion::latest())
-				.region(Region::new(region))
-				.credentials_provider(creds);
-
-			if let Some(ep) = endpoint {
-				s3_config = s3_config.endpoint_url(ep).force_path_style(true);
-			}
-
-			aws_sdk_s3::Client::from_conf(s3_config.build())
-		};
-
-		Ok(Self {
-			name: name.clone(),
-			bucket: bucket.into(),
-			prefix: prefix.map(|x| x.into()),
-			sidecars,
-			client: Arc::new(client),
-		})
-	}
-
-	async fn find_sidecar_key(&self, key: &str) -> Option<SmartString<LazyCompact>> {
-		// First try {key}.toml
-		let full_toml = format!("{key}.toml");
-		if self
-			.client
-			.head_object()
-			.bucket(self.bucket.as_str())
-			.key(&full_toml)
-			.send()
-			.await
-			.is_ok()
-		{
-			return Some(full_toml.into());
-		}
-
-		// Then try {key-with-extension-stripped}.toml
-		let stripped = std::path::Path::new(key).with_extension("toml");
-		if let Some(stripped_str) = stripped.to_str()
-			&& stripped_str != full_toml.as_str()
-			&& self
-				.client
-				.head_object()
-				.bucket(self.bucket.as_str())
-				.key(stripped_str)
-				.send()
-				.await
-				.is_ok()
-		{
-			return Some(stripped_str.into());
-		}
-
-		None
-	}
-
-	async fn make_item(self: &Arc<Self>, key: impl Into<SmartString<LazyCompact>>) -> Item {
-		let key: SmartString<LazyCompact> = key.into();
-		let mime = mime_guess::from_path(key.as_str()).first_or_octet_stream();
-
-		let sidecar = if self.sidecars {
-			self.find_sidecar_key(key.as_str())
-				.await
-				.map(|sidecar_key| {
-					Box::new(Item::S3 {
-						source: Arc::clone(self),
-						mime: mime_guess::from_path(sidecar_key.as_str()).first_or_octet_stream(),
-						key: sidecar_key,
-						sidecar: None,
-					})
-				})
-		} else {
-			None
-		};
-
-		Item::S3 {
-			source: Arc::clone(self),
-			mime,
-			key,
-			sidecar,
-		}
-	}
-}
-
-impl DataSource for Arc<S3DataSource> {
-	async fn get(&self, key: &str) -> Result<Option<Item>, std::io::Error> {
-		if self.sidecars && key.ends_with(".toml") {
-			return Ok(None);
-		}
-
-		let result = self
-			.client
-			.head_object()
-			.bucket(self.bucket.as_str())
-			.key(key)
-			.send()
-			.await;
-
-		match result {
-			Err(sdk_err) => {
-				let not_found = sdk_err
-					.as_service_error()
-					.map(|e| e.is_not_found())
-					.unwrap_or(false);
-				if not_found {
-					return Ok(None);
-				}
-				Err(std::io::Error::other(sdk_err))
-			}
-			Ok(_) => Ok(Some(self.make_item(key).await)),
-		}
-	}
-
-	fn iter(&self) -> ReceiverStream<Result<Item, std::io::Error>> {
-		let (tx, rx) = tokio::sync::mpsc::channel(64);
-		let source = Arc::clone(self);
-
-		tokio::spawn(async move {
-			let mut continuation_token: Option<String> = None;
-
-			loop {
-				let mut req = source
-					.client
-					.list_objects_v2()
-					.bucket(source.bucket.as_str());
-
-				if let Some(prefix) = &source.prefix {
-					req = req.prefix(prefix.as_str());
-				}
-
-				if let Some(token) = continuation_token {
-					req = req.continuation_token(token);
-				}
-
-				let resp = match req.send().await {
-					Err(e) => {
-						let _ = tx.send(Err(std::io::Error::other(e))).await;
-						break;
-					}
-					Ok(resp) => resp,
-				};
-
-				let next_token = resp.next_continuation_token().map(ToOwned::to_owned);
-				let is_truncated = resp.is_truncated().unwrap_or(false);
-
-				for obj in resp.contents() {
-					let key = match obj.key() {
-						Some(k) => k.to_owned(),
-						None => continue,
-					};
-
-					if source.sidecars && key.ends_with(".toml") {
-						continue;
-					}
-
-					let item = source.make_item(key).await;
-
-					if tx.send(Ok(item)).await.is_err() {
-						return;
-					}
-				}
-
-				if !is_truncated {
-					break;
-				}
-				continuation_token = next_token;
-			}
-		});
-
-		ReceiverStream::new(rx)
-	}
-
-	async fn latest_change(&self) -> Result<Option<DateTime<Utc>>, std::io::Error> {
-		let mut ts: Option<DateTime<Utc>> = None;
-		let mut continuation_token: Option<String> = None;
-
-		loop {
-			let mut req = self.client.list_objects_v2().bucket(self.bucket.as_str());
-
-			if let Some(prefix) = &self.prefix {
-				req = req.prefix(prefix.as_str());
-			}
-
-			if let Some(token) = continuation_token {
-				req = req.continuation_token(token);
-			}
-
-			let resp = match req.send().await {
-				Err(_) => return Ok(None),
-				Ok(resp) => resp,
-			};
-
-			let next_token = resp.next_continuation_token().map(ToOwned::to_owned);
-			let is_truncated = resp.is_truncated().unwrap_or(false);
-
-			for obj in resp.contents() {
-				if let Some(last_modified) = obj.last_modified() {
-					let dt = DateTime::from_timestamp(
-						last_modified.secs(),
-						last_modified.subsec_nanos(),
-					);
-					if let Some(dt) = dt {
-						ts = Some(match ts {
-							None => dt,
-							Some(prev) => prev.max(dt),
-						});
-					}
-				}
-			}
-
-			if !is_truncated {
-				break;
-			}
-			continuation_token = next_token;
-		}
-
-		Ok(ts)
-	}
-}

crates/pile-value/src/source/s3reader.rs

@@ -1,158 +0,0 @@
-use aws_sdk_s3::{error::SdkError, operation::get_object::GetObjectError};
-use mime::Mime;
-use std::io::{Error as IoError, Seek, SeekFrom, Write};
-use thiserror::Error;
-
-use super::S3Client;
-use crate::retry;
-
-#[derive(Debug, Error)]
-#[expect(clippy::large_enum_variant)]
-pub enum S3ReaderError {
-	#[error("sdk error")]
-	SdkError(#[from] SdkError<GetObjectError>),
-
-	#[error("byte stream error")]
-	ByteStreamError(#[from] aws_sdk_s3::primitives::ByteStreamError),
-
-	#[error("i/o error")]
-	IoError(#[from] IoError),
-}
-
-/// Provides a [`std::io::Read`]-like interface to an S3 object. \
-/// This doesn't actually implement [`std::io::Read`] because Read isn't async.
-///
-/// Also implements [`std::io::Seek`]
-pub struct S3Reader {
-	pub(super) client: S3Client,
-	pub(super) bucket: String,
-	pub(super) key: String,
-
-	pub(super) cursor: u64,
-	pub(super) size: u64,
-	pub(super) mime: Mime,
-}
-
-impl S3Reader {
-	pub async fn read(&mut self, mut buf: &mut [u8]) -> Result<usize, S3ReaderError> {
-		let len_left = self.size - self.cursor;
-		if len_left == 0 || buf.is_empty() {
-			return Ok(0);
-		}
-
-		#[expect(clippy::unwrap_used)] // TODO: probably fits?
-		let start_byte = usize::try_from(self.cursor).unwrap();
-
-		#[expect(clippy::unwrap_used)] // usize fits in u64
-		let len_to_read = u64::try_from(buf.len()).unwrap().min(len_left);
-
-		#[expect(clippy::unwrap_used)] // must fit, we called min()
-		let len_to_read = usize::try_from(len_to_read).unwrap();
-
-		let end_byte = start_byte + len_to_read - 1;
-
-		let b = retry!(
-			self.client.retries,
-			self.client
-				.client
-				.get_object()
-				.bucket(self.bucket.as_str())
-				.key(self.key.as_str())
-				.range(format!("bytes={start_byte}-{end_byte}"))
-				.send()
-				.await
-		)?;
-
-		// Looks like `bytes 31000000-31999999/33921176``
-		// println!("{:?}", b.content_range);
-
-		let mut bytes = b.body.collect().await?.into_bytes();
-		bytes.truncate(len_to_read);
-		let l = bytes.len();
-
-		// Memory to memory writes are infallible
-		#[expect(clippy::unwrap_used)]
-		buf.write_all(&bytes).unwrap();
-
-		// Cannot fail, usize should always fit into u64
-		#[expect(clippy::unwrap_used)]
-		{
-			self.cursor += u64::try_from(l).unwrap();
-		}
-
-		return Ok(len_to_read);
-	}
-
-	pub fn is_done(&self) -> bool {
-		return self.cursor == self.size;
-	}
-
-	pub fn mime(&self) -> &Mime {
-		&self.mime
-	}
-
-	/// Write the entire contents of this reader to `r`.
-	///
-	/// This method always downloads the whole object,
-	/// and always preserves `self.cursor`.
-	pub async fn download<W: Write>(&mut self, r: &mut W) -> Result<(), S3ReaderError> {
-		let pos = self.stream_position()?;
-
-		const BUF_LEN: usize = 10_000_000;
-		#[expect(clippy::unwrap_used)] // Cannot fail
-		let mut buf: Box<[u8; BUF_LEN]> = vec![0u8; BUF_LEN].try_into().unwrap();
-
-		while !self.is_done() {
-			let b = self.read(&mut buf[..]).await?;
-			r.write_all(&buf[0..b])?;
-		}
-
-		self.seek(SeekFrom::Start(pos))?;
-		Ok(())
-	}
-}
-
-impl Seek for S3Reader {
-	fn seek(&mut self, pos: SeekFrom) -> std::io::Result<u64> {
-		match pos {
-			SeekFrom::Start(x) => self.cursor = x.min(self.size - 1),
-
-			// Cannot panic, we handle all cases
-			#[expect(clippy::unwrap_used)]
-			SeekFrom::Current(x) => {
-				if x < 0 {
-					if u64::try_from(x.abs()).unwrap() > self.cursor {
-						return Err(std::io::Error::new(
-							std::io::ErrorKind::InvalidInput,
-							"cannot seek past start",
-						));
-					}
-					self.cursor -= u64::try_from(x.abs()).unwrap();
-				} else {
-					self.cursor += u64::try_from(x).unwrap();
-				}
-			}
-
-			// Cannot panic, we handle all cases
-			#[expect(clippy::unwrap_used)]
-			SeekFrom::End(x) => {
-				if x < 0 {
-					if u64::try_from(x.abs()).unwrap() > self.size {
-						return Err(std::io::Error::new(
-							std::io::ErrorKind::InvalidInput,
-							"cannot seek past start",
-						));
-					}
-					// Cannot fail, is abs
-					self.cursor = self.size - u64::try_from(x.abs()).unwrap();
-				} else {
-					// Cannot fail, is positive
-					self.cursor = self.size + u64::try_from(x).unwrap();
-				}
-			}
-		}
-
-		self.cursor = self.cursor.min(self.size - 1);
-		return Ok(self.cursor);
-	}
-}

crates/pile-value/src/value/item.rs

@@ -1,105 +1,45 @@
-use mime::Mime;
+use pile_config::Label;
 use smartstring::{LazyCompact, SmartString};
-use std::{fs::File, path::PathBuf, sync::Arc};
+use std::{collections::HashMap, sync::Arc};
 
-use crate::{
-	source::{DirDataSource, S3DataSource},
-	value::{ItemReader, S3Reader},
-};
+use crate::{source::DirDataSource, value::PileValue};
 
 //
 // MARK: item
 //
 
 /// A cheaply-cloneable pointer to an item in a dataset
-#[derive(Debug, Clone)]
+#[derive(Clone)]
 pub enum Item {
 	File {
-		source: Arc<DirDataSource>,
-		mime: Mime,
-
-		path: PathBuf,
-		sidecar: Option<Box<Item>>,
-	},
-
-	S3 {
-		source: Arc<S3DataSource>,
-		mime: Mime,
-
 		key: SmartString<LazyCompact>,
-		sidecar: Option<Box<Item>>,
+		source: Arc<DirDataSource>,
+		files: HashMap<Label, PileValue>,
 	},
 }
 
+impl std::fmt::Debug for Item {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		match self {
+			Self::File { key, files, .. } => f
+				.debug_struct("Item::File")
+				.field("key", key)
+				.field("files", &files.keys().collect::<Vec<_>>())
+				.finish(),
+		}
+	}
+}
+
 impl Item {
-	/// Open the item for reading. For S3, performs a HEAD request to determine
-	/// the object size.
-	pub async fn read(&self) -> Result<ItemReader, std::io::Error> {
-		Ok(match self {
-			Self::File { path, .. } => ItemReader::File(File::open(path)?),
-
-			Self::S3 { source, key, .. } => {
-				let head = source
-					.client
-					.head_object()
-					.bucket(source.bucket.as_str())
-					.key(key.as_str())
-					.send()
-					.await
-					.map_err(std::io::Error::other)?;
-
-				let size = head.content_length().unwrap_or(0) as u64;
-
-				ItemReader::S3(S3Reader {
-					client: source.client.clone(),
-					bucket: source.bucket.clone(),
-					key: key.to_owned(),
-					cursor: 0,
-					size,
-				})
-			}
-		})
-	}
-
 	pub fn source_name(&self) -> &pile_config::Label {
 		match self {
 			Self::File { source, .. } => &source.name,
-			Self::S3 { source, .. } => &source.name,
 		}
 	}
 
-	#[expect(clippy::expect_used)]
 	pub fn key(&self) -> SmartString<LazyCompact> {
 		match self {
-			Self::File { path, .. } => path.to_str().expect("path is not utf-8").into(),
-			Self::S3 { key, .. } => key.clone(),
-		}
-	}
-
-	pub fn hash(&self) -> Result<blake3::Hash, std::io::Error> {
-		match self {
-			Self::File { path, .. } => {
-				let mut hasher = blake3::Hasher::new();
-				let mut file = std::fs::File::open(path)?;
-				std::io::copy(&mut file, &mut hasher)?;
-				return Ok(hasher.finalize());
-			}
-
-			Self::S3 { .. } => todo!(),
-		}
-	}
-
-	pub fn mime(&self) -> &Mime {
-		match self {
-			Self::File { mime, .. } => mime,
-			Self::S3 { mime, .. } => mime,
-		}
-	}
-
-	pub fn sidecar(&self) -> Option<&Self> {
-		match self {
-			Self::File { sidecar, .. } => sidecar.as_ref().map(|x| &**x),
-			Self::S3 { sidecar, .. } => sidecar.as_ref().map(|x| &**x),
+			Self::File { key, .. } => key.clone(),
 		}
 	}
 }

crates/pile-value/src/value/readers.rs

@@ -1,81 +1,10 @@
-use smartstring::{LazyCompact, SmartString};
+use pile_io::{AsyncReader, AsyncSeekReader};
 use std::{
 	fs::File,
-	io::{Read, Seek, SeekFrom},
-	sync::Arc,
+	io::{Cursor, Seek},
 };
-use tokio::runtime::Handle;
 
-//
-// MARK: traits
-//
-
-pub trait AsyncReader: Send {
-	/// Read a chunk of bytes.
-	fn read(
-		&mut self,
-		buf: &mut [u8],
-	) -> impl Future<Output = Result<usize, std::io::Error>> + Send;
-
-	/// Read all remaining bytes into a `Vec`.
-	fn read_to_end(&mut self) -> impl Future<Output = Result<Vec<u8>, std::io::Error>> + Send {
-		async {
-			let mut buf = Vec::new();
-			let mut chunk = vec![0u8; 65536];
-			loop {
-				let n = self.read(&mut chunk).await?;
-				if n == 0 {
-					break;
-				}
-				buf.extend_from_slice(&chunk[..n]);
-			}
-			Ok(buf)
-		}
-	}
-}
-
-pub trait AsyncSeekReader: AsyncReader {
-	fn seek(&mut self, pos: SeekFrom) -> impl Future<Output = Result<u64, std::io::Error>> + Send;
-}
-
-//
-// MARK: sync bridge
-//
-
-/// Turn an async [Reader] into a sync [Read] + [Seek].
-///
-/// Never use this outside of [tokio::task::spawn_blocking],
-/// the async runtime will deadlock if this struct blocks
-/// the runtime.
-pub struct SyncReadBridge<R: AsyncReader> {
-	inner: R,
-	handle: Handle,
-}
-
-impl<R: AsyncReader> SyncReadBridge<R> {
-	/// Creates a new adapter using a handle to the current runtime.
-	/// Panics if called outside of tokio
-	pub fn new_current(inner: R) -> Self {
-		Self::new(inner, Handle::current())
-	}
-
-	/// Creates a new adapter using a handle to an existing runtime.
-	pub fn new(inner: R, handle: Handle) -> Self {
-		Self { inner, handle }
-	}
-}
-
-impl<R: AsyncReader> Read for SyncReadBridge<R> {
-	fn read(&mut self, buf: &mut [u8]) -> Result<usize, std::io::Error> {
-		self.handle.block_on(self.inner.read(buf))
-	}
-}
-
-impl<R: AsyncReader + AsyncSeekReader> Seek for SyncReadBridge<R> {
-	fn seek(&mut self, pos: SeekFrom) -> Result<u64, std::io::Error> {
-		self.handle.block_on(self.inner.seek(pos))
-	}
-}
+use crate::value::ArcBytes;
 
 //
 // MARK: itemreader
@@ -83,14 +12,14 @@ impl<R: AsyncReader + AsyncSeekReader> Seek for SyncReadBridge<R> {
 
 pub enum ItemReader {
 	File(File),
-	S3(S3Reader),
+	Vec(Cursor<ArcBytes>),
 }
 
 impl AsyncReader for ItemReader {
 	async fn read(&mut self, buf: &mut [u8]) -> Result<usize, std::io::Error> {
 		match self {
 			Self::File(x) => std::io::Read::read(x, buf),
-			Self::S3(x) => x.read(buf).await,
+			Self::Vec(x) => std::io::Read::read(x, buf),
 		}
 	}
 }
@@ -99,95 +28,7 @@ impl AsyncSeekReader for ItemReader {
 	async fn seek(&mut self, pos: std::io::SeekFrom) -> Result<u64, std::io::Error> {
 		match self {
 			Self::File(x) => x.seek(pos),
-			Self::S3(x) => x.seek(pos).await,
+			Self::Vec(x) => x.seek(pos),
 		}
 	}
 }
-
-//
-// MARK: S3Reader
-//
-
-pub struct S3Reader {
-	pub client: Arc<aws_sdk_s3::Client>,
-	pub bucket: SmartString<LazyCompact>,
-	pub key: SmartString<LazyCompact>,
-	pub cursor: u64,
-	pub size: u64,
-}
-
-impl AsyncReader for S3Reader {
-	async fn read(&mut self, buf: &mut [u8]) -> Result<usize, std::io::Error> {
-		let len_left = self.size.saturating_sub(self.cursor);
-		if len_left == 0 || buf.is_empty() {
-			return Ok(0);
-		}
-
-		let start_byte = self.cursor;
-		let len_to_read = (buf.len() as u64).min(len_left);
-		let end_byte = start_byte + len_to_read - 1;
-
-		let resp = self
-			.client
-			.get_object()
-			.bucket(self.bucket.as_str())
-			.key(self.key.as_str())
-			.range(format!("bytes={start_byte}-{end_byte}"))
-			.send()
-			.await
-			.map_err(std::io::Error::other)?;
-
-		let bytes = resp
-			.body
-			.collect()
-			.await
-			.map(|x| x.into_bytes())
-			.map_err(std::io::Error::other)?;
-
-		let n = bytes.len().min(buf.len());
-		buf[..n].copy_from_slice(&bytes[..n]);
-		self.cursor += n as u64;
-		Ok(n)
-	}
-}
-
-impl AsyncSeekReader for S3Reader {
-	async fn seek(&mut self, pos: SeekFrom) -> Result<u64, std::io::Error> {
-		match pos {
-			SeekFrom::Start(x) => self.cursor = x.min(self.size),
-
-			SeekFrom::Current(x) => {
-				if x < 0 {
-					let abs = x.unsigned_abs();
-					if abs > self.cursor {
-						return Err(std::io::Error::new(
-							std::io::ErrorKind::InvalidInput,
-							"cannot seek past start",
-						));
-					}
-					self.cursor -= abs;
-				} else {
-					self.cursor += x as u64;
-				}
-			}
-
-			std::io::SeekFrom::End(x) => {
-				if x < 0 {
-					let abs = x.unsigned_abs();
-					if abs > self.size {
-						return Err(std::io::Error::new(
-							std::io::ErrorKind::InvalidInput,
-							"cannot seek past start",
-						));
-					}
-					self.cursor = self.size - abs;
-				} else {
-					self.cursor = self.size + x as u64;
-				}
-			}
-		}
-
-		self.cursor = self.cursor.min(self.size);
-		Ok(self.cursor)
-	}
-}

crates/pile-value/src/value/value.rs

@@ -2,18 +2,61 @@ use mime::Mime;
 use pile_config::objectpath::{ObjectPath, PathSegment};
 use serde_json::{Map, Value};
 use smartstring::{LazyCompact, SmartString};
-use std::sync::Arc;
+use std::{fmt::Debug, fs::File, io::Cursor, path::PathBuf, sync::Arc};
 
 use crate::{
 	extract::{
+		blob::BinaryExtractor,
 		item::ItemExtractor,
 		misc::{ArrayExtractor, MapExtractor, VecExtractor},
 		string::StringExtractor,
-		traits::{ListExtractor, ObjectExtractor},
+		traits::{ExtractState, ListExtractor, ObjectExtractor},
 	},
-	value::Item,
+	value::{Item, ItemReader},
 };
 
+#[derive(Clone)]
+pub struct ArcBytes(pub Arc<Vec<u8>>);
+impl Debug for ArcBytes {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		f.debug_struct("ArcBytes")
+			.field("len()", &self.0.len())
+			.finish()
+	}
+}
+
+impl AsRef<[u8]> for ArcBytes {
+	fn as_ref(&self) -> &[u8] {
+		&self.0
+	}
+}
+
+#[derive(Debug, Clone)]
+pub enum BinaryPileValue {
+	/// A binary blob
+	Blob { mime: Mime, bytes: ArcBytes },
+
+	/// An pointer to a file
+	File { mime: Mime, path: PathBuf },
+}
+
+impl BinaryPileValue {
+	/// Open the item for reading.
+	pub async fn read(&self) -> Result<ItemReader, std::io::Error> {
+		match self {
+			Self::File { path, .. } => Ok(ItemReader::File(File::open(path)?)),
+			Self::Blob { bytes, .. } => Ok(ItemReader::Vec(Cursor::new(bytes.clone()))),
+		}
+	}
+
+	pub fn mime(&self) -> &Mime {
+		match self {
+			Self::Blob { mime, .. } => mime,
+			Self::File { mime, .. } => mime,
+		}
+	}
+}
+
 /// An immutable, cheaply-cloneable, lazily-computed value.
 /// Very similar to [serde_json::Value].
 pub enum PileValue {
@@ -27,12 +70,6 @@ pub enum PileValue {
 	/// An array of values
 	Array(Arc<Vec<PileValue>>),
 
-	/// A binary blob
-	Blob {
-		mime: Mime,
-		bytes: Arc<Vec<u8>>,
-	},
-
 	/// A lazily-computed map of {label: value}
 	ObjectExtractor(Arc<dyn ObjectExtractor>),
 
@@ -41,6 +78,9 @@ pub enum PileValue {
 
 	/// An pointer to an item in this dataset
 	Item(Item),
+
+	/// Binary data
+	Binary(BinaryPileValue),
 }
 
 impl Clone for PileValue {
@@ -53,11 +93,8 @@ impl Clone for PileValue {
 			Self::Array(x) => Self::Array(x.clone()),
 			Self::ObjectExtractor(x) => Self::ObjectExtractor(x.clone()),
 			Self::ListExtractor(x) => Self::ListExtractor(x.clone()),
-			Self::Blob { mime, bytes } => Self::Blob {
-				mime: mime.clone(),
-				bytes: bytes.clone(),
-			},
 			Self::Item(i) => Self::Item(i.clone()),
+			Self::Binary(b) => Self::Binary(b.clone()),
 		}
 	}
 }
@@ -70,10 +107,10 @@ impl PileValue {
 			Self::I64(_) => Arc::new(MapExtractor::default()),
 			Self::Array(_) => Arc::new(MapExtractor::default()),
 			Self::String(s) => Arc::new(StringExtractor::new(s)),
-			Self::Blob { .. } => Arc::new(MapExtractor::default()),
 			Self::ListExtractor(_) => Arc::new(MapExtractor::default()),
 			Self::ObjectExtractor(e) => e.clone(),
 			Self::Item(i) => Arc::new(ItemExtractor::new(i)),
+			Self::Binary(b) => Arc::new(BinaryExtractor::new(b)),
 		}
 	}
 
@@ -84,14 +121,20 @@ impl PileValue {
 			Self::I64(_) => Arc::new(VecExtractor::default()),
 			Self::Array(a) => Arc::new(ArrayExtractor::new(a.clone())),
 			Self::String(_) => Arc::new(VecExtractor::default()),
-			Self::Blob { .. } => Arc::new(VecExtractor::default()),
 			Self::ListExtractor(e) => e.clone(),
-			Self::ObjectExtractor(_) => Arc::new(VecExtractor::default()),
+			Self::ObjectExtractor(e) => e
+				.as_list()
+				.unwrap_or_else(|| Arc::new(VecExtractor::default())),
 			Self::Item(_) => Arc::new(VecExtractor::default()),
+			Self::Binary(_) => Arc::new(VecExtractor::default()),
 		}
 	}
 
-	pub async fn query(&self, query: &ObjectPath) -> Result<Option<Self>, std::io::Error> {
+	pub async fn query(
+		&self,
+		state: &ExtractState,
+		query: &ObjectPath,
+	) -> Result<Option<Self>, std::io::Error> {
 		let mut out: Option<PileValue> = Some(self.clone());
 
 		for s in &query.segments {
@@ -106,7 +149,7 @@ impl PileValue {
 						}
 					};
 
-					out = e.field(name, args.as_deref()).await?;
+					out = e.field(state, name, args.as_deref()).await?;
 				}
 
 				PathSegment::Index(idx) => {
@@ -121,7 +164,7 @@ impl PileValue {
 					let idx = if *idx >= 0 {
 						usize::try_from(*idx).ok()
 					} else {
-						usize::try_from(e.len().await? as i64 - idx).ok()
+						usize::try_from(e.len(state).await? as i64 - idx).ok()
 					};
 
 					let idx = match idx {
@@ -132,7 +175,41 @@ impl PileValue {
 						}
 					};
 
-					out = e.get(idx).await?;
+					out = e.get(state, idx).await?;
+				}
+
+				PathSegment::Range {
+					start,
+					end,
+					inclusive,
+				} => {
+					let e = match out.map(|x| x.list_extractor()) {
+						Some(e) => e,
+						None => {
+							out = None;
+							continue;
+						}
+					};
+
+					let len = e.len(state).await? as i64;
+
+					let start_idx = if *start >= 0 { *start } else { len + start };
+					let end_idx = if *end >= 0 { *end } else { len + end };
+					let end_idx = if *inclusive { end_idx + 1 } else { end_idx };
+
+					let start_idx = start_idx.max(0) as usize;
+					let end_idx = (end_idx.max(0) as usize).min(len as usize);
+
+					let mut items = Vec::new();
+					for i in start_idx..end_idx {
+						match e.get(state, i).await? {
+							Some(v) => items.push(v),
+							None => break,
+						}
+					}
+
+					// TODO: lazy view?
+					out = Some(PileValue::Array(Arc::new(items)));
 				}
 			}
 		}
@@ -147,27 +224,33 @@ impl PileValue {
 	/// - `ObjectExtractor` is recursed into; returns `Some(Object(map))` with
 	///   only the fields that had data, or `None` if all fields were absent.
 	/// - `Array` / `ListExtractor` are treated as opaque leaf values (not descended into).
-	pub async fn count_fields(&self) -> Result<Option<Value>, std::io::Error> {
+	pub async fn count_fields(
+		&self,
+		state: &ExtractState,
+	) -> Result<Option<Value>, std::io::Error> {
 		Ok(match self {
 			Self::Null => None,
 
-			Self::U64(_) | Self::I64(_) | Self::String(_) | Self::Blob { .. } => {
-				Some(Value::Number(1u64.into()))
-			}
+			Self::U64(_)
+			| Self::I64(_)
+			| Self::String(_)
+			| Self::Binary(BinaryPileValue::Blob { .. }) => Some(Value::Number(1u64.into())),
 
 			Self::Array(x) => (!x.is_empty()).then(|| Value::Number(1u64.into())),
-			Self::ListExtractor(x) => (!x.is_empty().await?).then(|| Value::Number(1u64.into())),
+			Self::ListExtractor(x) => (x.len(state).await? > 0).then(|| Value::Number(1u64.into())),
 
-			Self::ObjectExtractor(_) | Self::Item(_) => {
+			Self::ObjectExtractor(_)
+			| Self::Item(_)
+			| Self::Binary(BinaryPileValue::File { .. }) => {
 				let e = self.object_extractor();
 				let keys = e.fields().await?;
 				let mut map = Map::new();
 				for k in &keys {
-					let v = match e.field(k, None).await? {
+					let v = match e.field(state, k, None).await? {
 						Some(x) => x,
 						None => continue,
 					};
-					if let Some(counted) = Box::pin(v.count_fields()).await? {
+					if let Some(counted) = Box::pin(v.count_fields(state)).await? {
 						map.insert(k.to_string(), counted);
 					}
 				}
@@ -187,7 +270,7 @@ impl PileValue {
 		}
 	}
 
-	pub async fn to_json(&self) -> Result<Value, std::io::Error> {
+	pub async fn to_json(&self, state: &ExtractState) -> Result<Value, std::io::Error> {
 		Ok(match self {
 			Self::Null => Value::Null,
 			Self::U64(x) => Value::Number((*x).into()),
@@ -195,18 +278,20 @@ impl PileValue {
 			Self::String(x) => Value::String(x.to_string()),
 
 			// TODO: replace with something meaningful?
-			Self::Blob { mime, bytes } => {
-				Value::String(format!("<Blob ({mime}, {} bytes)>", bytes.len()))
+			Self::Binary(BinaryPileValue::Blob { mime, bytes }) => {
+				Value::String(format!("<Blob ({mime}, {} bytes)>", bytes.0.len()))
 			}
 
 			Self::Array(_) | Self::ListExtractor(_) => {
 				let e = self.list_extractor();
-				return e.to_json().await;
+				return e.to_json(state).await;
 			}
 
-			Self::ObjectExtractor(_) | Self::Item(_) => {
+			Self::ObjectExtractor(_)
+			| Self::Item(_)
+			| Self::Binary(BinaryPileValue::File { .. }) => {
 				let e = self.object_extractor();
-				return e.to_json().await;
+				return e.to_json(state).await;
 			}
 		})
 	}

crates/pile/Cargo.toml

@@ -9,14 +9,14 @@ workspace = true
 
 [dependencies]
 pile-toolbox = { workspace = true }
-pile-dataset = { workspace = true, features = ["axum", "pdfium"] }
-pile-value = { workspace = true, features = ["pdfium"] }
+pile-dataset = { workspace = true }
+pile-serve = { workspace = true }
+pile-value = { workspace = true }
 pile-config = { workspace = true }
 
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
 tokio = { workspace = true }
-tokio-stream = { workspace = true }
 clap = { workspace = true }
 #clap_complete = { workspace = true }
 serde = { workspace = true }
@@ -27,3 +27,15 @@ anstyle = { workspace = true }
 toml = { workspace = true }
 serde_json = { workspace = true }
 axum = { workspace = true }
+utoipa = { workspace = true }
+utoipa-swagger-ui = { workspace = true }
+url = { workspace = true }
+tracing-loki = { workspace = true }
+base64 = { workspace = true }
+dotenvy = { workspace = true }
+envy = { workspace = true }
+thiserror = { workspace = true }
+
+[features]
+default = ["pdfium"]
+pdfium = ["pile-dataset/pdfium", "pile-serve/pdfium", "pile-value/pdfium"]

crates/pile/src/command/annotate.rs

@@ -1,106 +0,0 @@
-use anyhow::{Context, Result};
-use clap::Args;
-use pile_config::{Label, Source};
-use pile_dataset::{Datasets, index::DbFtsIndex};
-use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
-use pile_value::{
-	source::{DataSource, DirDataSource},
-	value::{Item, PileValue},
-};
-use std::{path::PathBuf, sync::Arc};
-use tokio_stream::StreamExt;
-use tracing::{info, warn};
-
-use crate::{CliCmd, GlobalContext};
-
-#[derive(Debug, Args)]
-pub struct AnnotateCommand {
-	/// The schema field to read (must be defined in pile.toml)
-	field: String,
-
-	/// Sidecar path to write to (e.g. meta.title)
-	dest: String,
-
-	/// Path to dataset config
-	#[arg(long, short = 'c', default_value = "./pile.toml")]
-	config: PathBuf,
-}
-
-impl AnnotateCommand {
-	fn parse_dest(dest: &str) -> Result<Vec<Label>> {
-		dest.split('.')
-			.map(|s| {
-				Label::new(s).ok_or_else(|| anyhow::anyhow!("invalid label {s:?} in dest path"))
-			})
-			.collect()
-	}
-}
-
-impl CliCmd for AnnotateCommand {
-	async fn run(
-		self,
-		_ctx: GlobalContext,
-		_flag: CancelFlag,
-	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let field = Label::new(&self.field)
-			.ok_or_else(|| anyhow::anyhow!("invalid field name {:?}", self.field))?;
-		let dest_path = Self::parse_dest(&self.dest)?;
-
-		let ds = Datasets::open(&self.config)
-			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
-
-		if !ds.config.schema.contains_key(&field) {
-			return Err(anyhow::anyhow!("field {:?} is not defined in schema", self.field).into());
-		}
-
-		let index = DbFtsIndex::new(&ds.path_workdir, &ds.config);
-		let count = 0u64;
-
-		for (name, source) in &ds.config.dataset.source {
-			match source {
-				Source::Filesystem { path, sidecars } => {
-					if !sidecars {
-						warn!("Source {name} does not have sidecars enabled, skipping");
-						continue;
-					}
-
-					let source = Arc::new(DirDataSource::new(name, path.clone(), *sidecars));
-
-					let mut stream = source.iter();
-					while let Some(res) = stream.next().await {
-						let item = res.with_context(|| format!("while reading source {name}"))?;
-
-						let Item::File { path, .. } = &item else {
-							continue;
-						};
-
-						let item = PileValue::Item(item.clone());
-						let Some(value) =
-							index.get_field(&item, &field).await.with_context(|| {
-								format!("while extracting field from {}", path.display())
-							})?
-						else {
-							continue;
-						};
-
-						// TODO: implement sidecar writing
-						let _ = (&dest_path, &value);
-						todo!("write_sidecar not yet implemented");
-
-						#[expect(unreachable_code)]
-						{
-							count += 1;
-						}
-					}
-				}
-				Source::S3 { .. } => {
-					warn!("Source {name} is an S3 source; sidecar annotation is not yet supported");
-				}
-			}
-		}
-
-		info!("Annotated {count} items");
-
-		return Ok(0);
-	}
-}

crates/pile/src/command/check.rs

@@ -13,6 +13,10 @@ pub struct CheckCommand {
 	/// Path to dataset config
 	#[arg(long, short = 'c', default_value = "./pile.toml")]
 	config: PathBuf,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
 }
 
 impl CliCmd for CheckCommand {
@@ -43,7 +47,8 @@ impl CliCmd for CheckCommand {
 			}
 		}
 
-		let ds = Datasets::open(&self.config)
+		let ds = Datasets::open(&self.config, self.workdir)
+			.await
 			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
 
 		let ts_fts = ds.ts_fts().context("while determining fts age")?;

crates/pile/src/command/fields.rs

@@ -1,12 +1,12 @@
 use anyhow::{Context, Result};
 use clap::Args;
+use pile_config::objectpath::ObjectPath;
 use pile_dataset::Datasets;
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
-use pile_value::value::PileValue;
+use pile_value::{extract::traits::ExtractState, value::PileValue};
 use serde_json::{Map, Value};
 use std::{path::PathBuf, time::Instant};
 use tokio::task::JoinSet;
-use tokio_stream::StreamExt;
 use tracing::info;
 
 use crate::{CliCmd, GlobalContext};
@@ -41,9 +41,17 @@ pub struct FieldsCommand {
 	#[arg(long)]
 	max_percent: Option<f64>,
 
+	/// Print counts of non-null schema fields instead of raw fields
+	#[arg(long)]
+	schema: bool,
+
 	/// Restrict to these sources (all sources if empty)
 	#[arg(long, short = 's')]
 	source: Vec<String>,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
 }
 
 impl CliCmd for FieldsCommand {
@@ -54,13 +62,26 @@ impl CliCmd for FieldsCommand {
 		_ctx: GlobalContext,
 		flag: CancelFlag,
 	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let ds = Datasets::open(&self.config)
+		let ds = Datasets::open(&self.config, &self.workdir)
+			.await
 			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
 
 		let start = Instant::now();
 		let mut total_counts: Map<String, Value> = Map::new();
 		let mut total_items = 0u64;
 		let jobs = self.jobs.max(1);
+		let state = ExtractState { ignore_mime: false };
+
+		// Pre-collect schema fields for the --schema mode
+		let schema_fields: Vec<(String, Vec<ObjectPath>)> = if self.schema {
+			ds.config
+				.schema
+				.iter()
+				.map(|(name, spec)| (name.to_string(), spec.path.clone()))
+				.collect()
+		} else {
+			Vec::new()
+		};
 
 		for (name, dataset) in ds.sources.iter().filter(|(name, _)| {
 			self.source.is_empty() || self.source.iter().any(|s| s == name.as_str())
@@ -87,25 +108,56 @@ impl CliCmd for FieldsCommand {
 					return Err(CancelableTaskError::Cancelled);
 				}
 
-				match stream.next().await {
+				match stream.next() {
 					None => break,
-					Some(item_result) => {
-						let item =
-							item_result.with_context(|| format!("while reading source {name}"))?;
+					Some(item) => {
+						let item = item.clone();
 						let name = name.clone();
-						join_set.spawn(async move {
-							let item = PileValue::Item(item);
-							let result = item.count_fields().await.with_context(|| {
-								format!("while counting fields in source {name}")
-							})?;
-							Ok(result.and_then(|v| {
-								if let Value::Object(m) = v {
-									Some(m)
-								} else {
-									None
+						let state = state.clone();
+						if self.schema {
+							let schema_fields = schema_fields.clone();
+							join_set.spawn(async move {
+								let pv = PileValue::Item(item);
+								let mut counts = Map::new();
+								for (field_name, paths) in &schema_fields {
+									let mut present = false;
+									for path in paths {
+										let v =
+											pv.query(&state, path).await.with_context(|| {
+												format!(
+													"while extracting field {field_name} in source {name}"
+												)
+											})?;
+										if let Some(v) = v
+											&& !matches!(v, PileValue::Null)
+										{
+											present = true;
+											break;
+										}
+									}
+									counts.insert(
+										field_name.clone(),
+										Value::Number((present as u64).into()),
+									);
 								}
-							}))
-						});
+								Ok(Some(counts))
+							});
+						} else {
+							join_set.spawn(async move {
+								let item = PileValue::Item(item);
+								let result =
+									item.count_fields(&state).await.with_context(|| {
+										format!("while counting fields in source {name}")
+									})?;
+								Ok(result.and_then(|v| {
+									if let Value::Object(m) = v {
+										Some(m)
+									} else {
+										None
+									}
+								}))
+							});
+						}
 					}
 				}
 			}

crates/pile/src/command/index.rs

@@ -2,6 +2,7 @@ use anyhow::{Context, Result};
 use clap::Args;
 use pile_dataset::Datasets;
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
+use pile_value::extract::traits::ExtractState;
 use std::{fmt::Debug, path::PathBuf};
 
 use crate::{CliCmd, GlobalContext};
@@ -15,6 +16,10 @@ pub struct IndexCommand {
 	/// Number of threads to use for indexing
 	#[arg(long, short = 'j', default_value = "3")]
 	jobs: usize,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
 }
 
 impl CliCmd for IndexCommand {
@@ -23,17 +28,21 @@ impl CliCmd for IndexCommand {
 		_ctx: GlobalContext,
 		flag: CancelFlag,
 	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let ds = Datasets::open(&self.config)
+		let ds = Datasets::open(&self.config, &self.workdir)
+			.await
 			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
 
-		ds.fts_refresh(self.jobs, Some(flag)).await.map_err(|x| {
-			x.map_err(|x| {
-				anyhow::Error::from(x).context(format!(
-					"while refreshing fts for {}",
-					self.config.display()
-				))
-			})
-		})?;
+		let state = ExtractState { ignore_mime: false };
+		ds.fts_refresh(&state, self.jobs, Some(flag))
+			.await
+			.map_err(|x| {
+				x.map_err(|x| {
+					anyhow::Error::from(x).context(format!(
+						"while refreshing fts for {}",
+						self.config.display()
+					))
+				})
+			})?;
 
 		return Ok(0);
 	}

crates/pile/src/command/item.rs

@@ -0,0 +1,117 @@
+use anyhow::{Context, Result};
+use clap::Args;
+use pile_config::{Label, objectpath::ObjectPath};
+use pile_dataset::Datasets;
+use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
+use pile_value::{extract::traits::ExtractState, value::PileValue};
+use std::path::PathBuf;
+
+use crate::{CliCmd, GlobalContext};
+
+#[derive(Debug, Args)]
+pub struct ItemCommand {
+	/// Source name (as defined in pile.toml)
+	source: String,
+
+	/// Item key within the source
+	key: String,
+
+	/// If present, extract a specific field
+	#[arg(long, short = 'p')]
+	path: Option<String>,
+
+	/// If present, print the schema fields instead of item data
+	#[arg(long)]
+	schema: bool,
+
+	#[arg(long, short = 'x')]
+	exclude: Vec<String>,
+
+	/// Path to dataset config
+	#[arg(long, short = 'c', default_value = "./pile.toml")]
+	config: PathBuf,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
+}
+
+impl CliCmd for ItemCommand {
+	#[expect(clippy::print_stdout)]
+	#[expect(clippy::unwrap_used)]
+	async fn run(
+		self,
+		_ctx: GlobalContext,
+		_flag: CancelFlag,
+	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
+		let source = Label::new(&self.source)
+			.ok_or_else(|| anyhow::anyhow!("invalid source name {:?}", self.source))?;
+
+		let ds = Datasets::open(&self.config, &self.workdir)
+			.await
+			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
+
+		let state = ExtractState { ignore_mime: false };
+
+		let item = ds.get(&source, &self.key).await.ok_or_else(|| {
+			anyhow::anyhow!("{:?} not found in source {:?}", self.key, self.source)
+		})?;
+		let pv = PileValue::Item(item);
+
+		if self.schema {
+			let mut map = serde_json::Map::new();
+			for (name, spec) in &ds.config.schema {
+				if self.exclude.contains(&name.to_string()) {
+					continue;
+				}
+
+				let mut value = None;
+				for path in &spec.path {
+					let v = pv
+						.query(&state, path)
+						.await
+						.with_context(|| format!("while extracting field {name}"))?;
+					if let Some(v) = v
+						&& !matches!(v, PileValue::Null)
+					{
+						let j = v
+							.to_json(&state)
+							.await
+							.with_context(|| format!("while extracting field {name}"))?;
+						value = Some(j);
+						break;
+					}
+				}
+				map.insert(name.to_string(), value.unwrap_or(serde_json::Value::Null));
+			}
+			let json = serde_json::to_string_pretty(&serde_json::Value::Object(map)).unwrap();
+			println!("{json}");
+			return Ok(0);
+		}
+
+		let json = if let Some(path_str) = self.path {
+			let path: ObjectPath = path_str
+				.parse()
+				.with_context(|| format!("invalid path {path_str:?}"))?;
+
+			let v = pv
+				.query(&state, &path)
+				.await
+				.with_context(|| format!("while extracting {}", self.key))?
+				.ok_or_else(|| {
+					anyhow::anyhow!("{:?} not found in source {:?}", self.key, self.source)
+				})?;
+			v.to_json(&state)
+				.await
+				.with_context(|| format!("while extracting {}", self.key))?
+		} else {
+			pv.to_json(&state)
+				.await
+				.with_context(|| format!("while extracting {}", self.key))?
+		};
+
+		let json = serde_json::to_string_pretty(&json).unwrap();
+		println!("{json}");
+		return Ok(0);
+	}
+}

crates/pile/src/command/list.rs

@@ -1,25 +1,30 @@
 use anyhow::{Context, Result};
 use clap::Args;
+use pile_config::Label;
 use pile_config::objectpath::ObjectPath;
 use pile_dataset::Datasets;
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
-use pile_value::value::PileValue;
+use pile_value::{extract::traits::ExtractState, value::PileValue};
 use std::{path::PathBuf, str::FromStr, sync::Arc};
 use tokio::task::JoinSet;
-use tokio_stream::StreamExt;
 use tracing::info;
 
 use crate::{CliCmd, GlobalContext};
 
 #[derive(Debug, Args)]
 pub struct ListCommand {
-	/// Path to query, e.g. $.flac.artist
+	/// Path to query, e.g. $.flac.artist (or schema field name when --schema is set)
+	#[clap(default_value = "$")]
 	path: String,
 
 	/// Only print items where the value is null (inverse of default)
 	#[arg(long)]
 	invert: bool,
 
+	/// Treat path as a schema field name and resolve via schema paths
+	#[arg(long)]
+	schema: bool,
+
 	/// Path to dataset config
 	#[arg(long, short = 'c', default_value = "./pile.toml")]
 	config: PathBuf,
@@ -31,6 +36,10 @@ pub struct ListCommand {
 	/// Restrict to these sources (all sources if empty)
 	#[arg(long, short = 's')]
 	source: Vec<String>,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
 }
 
 impl CliCmd for ListCommand {
@@ -40,14 +49,26 @@ impl CliCmd for ListCommand {
 		_ctx: GlobalContext,
 		flag: CancelFlag,
 	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let path = ObjectPath::from_str(&self.path)
-			.with_context(|| format!("invalid path {:?}", self.path))?;
-		let path = Arc::new(path);
-
-		let ds = Datasets::open(&self.config)
+		let ds = Datasets::open(&self.config, &self.workdir)
+			.await
 			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
 
+		// Resolve path arg: either schema field paths or a single ObjectPath
+		let schema_paths: Arc<Vec<ObjectPath>> = if self.schema {
+			let label = Label::new(&self.path)
+				.ok_or_else(|| anyhow::anyhow!("invalid schema field name {:?}", self.path))?;
+			let spec = ds.config.schema.get(&label).ok_or_else(|| {
+				anyhow::anyhow!("schema field {:?} not found in config", self.path)
+			})?;
+			Arc::new(spec.path.clone())
+		} else {
+			let path = ObjectPath::from_str(&self.path)
+				.with_context(|| format!("invalid path {:?}", self.path))?;
+			Arc::new(vec![path])
+		};
+
 		let jobs = self.jobs.max(1);
+		let state = ExtractState { ignore_mime: false };
 
 		for (name, dataset) in ds.sources.iter().filter(|(name, _)| {
 			self.source.is_empty() || self.source.iter().any(|s| s == name.as_str())
@@ -69,22 +90,26 @@ impl CliCmd for ListCommand {
 					return Err(CancelableTaskError::Cancelled);
 				}
 
-				match stream.next().await {
+				match stream.next() {
 					None => break,
-					Some(item_result) => {
-						let item =
-							item_result.with_context(|| format!("while reading source {name}"))?;
+					Some(item) => {
+						let item = item.clone();
 						let source_name = name.to_string();
 						let key = item.key().to_string();
-						let path = path.clone();
+						let schema_paths = schema_paths.clone();
 						let invert = self.invert;
+						let state = state.clone();
 
 						join_set.spawn(async move {
-							let item = PileValue::Item(item);
-							let value = item.query(&path).await?;
-
-							let is_present =
-								matches!(value, Some(v) if !matches!(v, PileValue::Null));
+							let pv = PileValue::Item(item);
+							let mut is_present = false;
+							for path in schema_paths.as_ref() {
+								let value = pv.query(&state, path).await?;
+								if matches!(value, Some(v) if !matches!(v, PileValue::Null)) {
+									is_present = true;
+									break;
+								}
+							}
 
 							let should_print = if invert { !is_present } else { is_present };
 

crates/pile/src/command/lookup.rs

@@ -2,6 +2,7 @@ use anyhow::{Context, Result};
 use clap::Args;
 use pile_dataset::Datasets;
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
+use pile_value::extract::traits::ExtractState;
 use std::{fmt::Debug, path::PathBuf};
 use tracing::info;
 
@@ -30,6 +31,10 @@ pub struct LookupCommand {
 	/// Number of threads to use for indexing
 	#[arg(long, short = 'j', default_value = "3")]
 	jobs: usize,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
 }
 
 impl CliCmd for LookupCommand {
@@ -39,19 +44,24 @@ impl CliCmd for LookupCommand {
 		_ctx: GlobalContext,
 		flag: CancelFlag,
 	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let ds = Datasets::open(&self.config)
+		let ds = Datasets::open(&self.config, &self.workdir)
+			.await
 			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
 
+		let state = ExtractState { ignore_mime: false };
+
 		if self.refresh && ds.needs_fts().await.context("while checking dataset fts")? {
 			info!("FTS index is missing or out-of-date, regenerating");
-			ds.fts_refresh(self.jobs, Some(flag)).await.map_err(|x| {
-				x.map_err(|x| {
-					anyhow::Error::from(x).context(format!(
-						"while refreshing fts for {}",
-						self.config.display()
-					))
-				})
-			})?;
+			ds.fts_refresh(&state, self.jobs, Some(flag))
+				.await
+				.map_err(|x| {
+					x.map_err(|x| {
+						anyhow::Error::from(x).context(format!(
+							"while refreshing fts for {}",
+							self.config.display()
+						))
+					})
+				})?;
 		}
 
 		let results = ds

crates/pile/src/command/mod.rs

@@ -4,15 +4,16 @@ use pile_toolbox::cancelabletask::{
 	CancelFlag, CancelableTask, CancelableTaskError, CancelableTaskResult,
 };
 
-mod annotate;
 mod check;
 mod fields;
 mod index;
 mod init;
+mod item;
 mod list;
 mod lookup;
 mod probe;
 mod serve;
+mod server;
 
 use crate::{Cli, GlobalContext};
 
@@ -22,12 +23,6 @@ pub enum SubCommand {
 	#[clap(alias = "doc")]
 	Docs {},
 
-	/// Annotate all items with a field, writing it to a sidecar path
-	Annotate {
-		#[command(flatten)]
-		cmd: annotate::AnnotateCommand,
-	},
-
 	/// Create an empty dataset
 	Init {
 		#[command(flatten)]
@@ -60,36 +55,49 @@ pub enum SubCommand {
 	},
 
 	/// Print an overview of all fields present in this dataset
-	Overview {
+	Fields {
 		#[command(flatten)]
 		cmd: fields::FieldsCommand,
 	},
 
-	/// Print all metadata from an item
+	/// Print all metadata from a file
 	Probe {
 		#[command(flatten)]
 		cmd: probe::ProbeCommand,
 	},
 
-	/// Expose a dataset via an http api
+	/// Print all metadata from an item
+	Item {
+		#[command(flatten)]
+		cmd: item::ItemCommand,
+	},
+
+	/// Expose one dataset via a simple http api
 	Serve {
 		#[command(flatten)]
 		cmd: serve::ServeCommand,
 	},
+
+	/// Serve many datasets under an authenticated http api
+	Server {
+		#[command(flatten)]
+		cmd: server::ServerCommand,
+	},
 }
 
 impl CliCmdDispatch for SubCommand {
 	fn start(self, ctx: GlobalContext) -> Result<CancelableTask<Result<i32>>> {
 		match self {
-			Self::Annotate { cmd } => cmd.start(ctx),
 			Self::Init { cmd } => cmd.start(ctx),
 			Self::Check { cmd } => cmd.start(ctx),
 			Self::Index { cmd } => cmd.start(ctx),
 			Self::List { cmd } => cmd.start(ctx),
 			Self::Lookup { cmd } => cmd.start(ctx),
-			Self::Overview { cmd } => cmd.start(ctx),
+			Self::Fields { cmd } => cmd.start(ctx),
 			Self::Probe { cmd } => cmd.start(ctx),
+			Self::Item { cmd } => cmd.start(ctx),
 			Self::Serve { cmd } => cmd.start(ctx),
+			Self::Server { cmd } => cmd.start(ctx),
 
 			Self::Docs {} => {
 				print_help_recursively(&mut Cli::command(), None);

crates/pile/src/command/probe.rs

@@ -1,28 +1,21 @@
 use anyhow::{Context, Result};
 use clap::Args;
-use pile_config::{Label, objectpath::ObjectPath};
+use pile_config::objectpath::ObjectPath;
 use pile_dataset::Datasets;
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
-use pile_value::value::PileValue;
+use pile_value::{extract::traits::ExtractState, value::PileValue};
 use std::path::PathBuf;
 
 use crate::{CliCmd, GlobalContext};
 
 #[derive(Debug, Args)]
 pub struct ProbeCommand {
-	/// Source name (as defined in pile.toml)
-	source: String,
-
-	/// Item key within the source
-	key: String,
+	/// The file to probe
+	file: PathBuf,
 
 	/// If present, extract a specific field
 	#[arg(long, short = 'p')]
 	path: Option<String>,
-
-	/// Path to dataset config
-	#[arg(long, short = 'c', default_value = "./pile.toml")]
-	config: PathBuf,
 }
 
 impl CliCmd for ProbeCommand {
@@ -33,32 +26,37 @@ impl CliCmd for ProbeCommand {
 		_ctx: GlobalContext,
 		_flag: CancelFlag,
 	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let source = Label::new(&self.source)
-			.ok_or_else(|| anyhow::anyhow!("invalid source name {:?}", self.source))?;
+		let ds = Datasets::virt(".")
+			.await
+			.with_context(|| "while opening virtual dataset".to_owned())?;
 
-		let ds = Datasets::open(&self.config)
-			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
+		let state = ExtractState { ignore_mime: false };
+		let key = self.file.to_str().context("path is not utf-8")?;
 
 		let json = if let Some(path_str) = self.path {
 			let path: ObjectPath = path_str
 				.parse()
 				.with_context(|| format!("invalid path {path_str:?}"))?;
 
-			ds.get_field(&source, &self.key, &path)
-				.await
-				.with_context(|| format!("while extracting {}", self.key))?
-				.ok_or_else(|| {
-					anyhow::anyhow!("{:?} not found in source {:?}", self.key, self.source)
-				})?
+			ds.get_field(
+				&state,
+				&Datasets::virt_source(),
+				self.file.to_str().context("path is not utf-8")?,
+				&path,
+			)
+			.await
+			.with_context(|| format!("while extracting {key}"))?
+			.ok_or_else(|| anyhow::anyhow!("{key:?} not found"))?
 		} else {
-			let item = ds.get(&source, &self.key).await.ok_or_else(|| {
-				anyhow::anyhow!("{:?} not found in source {:?}", self.key, self.source)
-			})?;
+			let item = ds
+				.get(&Datasets::virt_source(), key)
+				.await
+				.ok_or_else(|| anyhow::anyhow!("{key:?} not found"))?;
 
 			let item = PileValue::Item(item);
-			item.to_json()
+			item.to_json(&state)
 				.await
-				.with_context(|| format!("while extracting {}", self.key))?
+				.with_context(|| format!("while extracting {key}"))?
 		};
 
 		let json = serde_json::to_string_pretty(&json).unwrap();

crates/pile/src/command/serve.rs

@@ -2,6 +2,7 @@ use anyhow::{Context, Result};
 use clap::Args;
 use pile_dataset::Datasets;
 use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
+use pile_value::extract::traits::ExtractState;
 use std::{fmt::Debug, path::PathBuf, sync::Arc};
 use tracing::{error, info};
 
@@ -24,6 +25,10 @@ pub struct ServeCommand {
 	/// Number of threads to use for indexing
 	#[arg(long, short = 'j', default_value = "3")]
 	jobs: usize,
+
+	/// Working directory root
+	#[arg(long, default_value = "./.pile")]
+	workdir: PathBuf,
 }
 
 impl CliCmd for ServeCommand {
@@ -32,12 +37,15 @@ impl CliCmd for ServeCommand {
 		_ctx: GlobalContext,
 		flag: CancelFlag,
 	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
-		let ds = Datasets::open(&self.config)
+		let ds = Datasets::open(&self.config, &self.workdir)
+			.await
 			.with_context(|| format!("while opening dataset for {}", self.config.display()))?;
 
+		let state = ExtractState { ignore_mime: false };
+
 		if self.refresh && ds.needs_fts().await.context("while checking dataset fts")? {
 			info!("FTS index is missing or out-of-date, regenerating");
-			ds.fts_refresh(self.jobs, Some(flag.clone()))
+			ds.fts_refresh(&state, self.jobs, Some(flag.clone()))
 				.await
 				.map_err(|x| {
 					x.map_err(|x| {
@@ -49,8 +57,7 @@ impl CliCmd for ServeCommand {
 				})?;
 		}
 
-		let app = Arc::new(ds)
-			.router(true)
+		let app = pile_serve::router(Arc::new(ds), true)
 			.into_make_service_with_connect_info::<std::net::SocketAddr>();
 
 		let listener = match tokio::net::TcpListener::bind(self.addr.clone()).await {

crates/pile/src/command/server.rs

@@ -0,0 +1,241 @@
+use anyhow::{Context, Result};
+use axum::{
+	Json, Router,
+	extract::{Request, State},
+	http::StatusCode,
+	middleware::{Next, from_fn_with_state},
+	response::{IntoResponse, Response},
+	routing::get,
+};
+use clap::Args;
+use pile_dataset::{DatasetError, Datasets};
+use pile_toolbox::cancelabletask::{CancelFlag, CancelableTaskError};
+use pile_value::extract::traits::ExtractState;
+use serde::Serialize;
+use std::{fmt::Debug, path::PathBuf, sync::Arc, time::Duration};
+use tracing::{error, info};
+use utoipa::{OpenApi, ToSchema};
+use utoipa_swagger_ui::SwaggerUi;
+
+use crate::{CliCmd, GlobalContext};
+
+#[derive(Debug, Args)]
+pub struct ServerCommand {
+	/// The datasets we should serve. Can be repeated.
+	#[arg(long, short = 'c')]
+	config: Vec<PathBuf>,
+
+	/// If provided, do not serve docs
+	#[arg(long)]
+	no_docs: bool,
+
+	/// If provided, never auto-refresh indices
+	#[arg(long)]
+	no_refresh: bool,
+
+	/// Number of threads to use to refresh indices
+	#[arg(long, default_value = "5")]
+	refresh_jobs: usize,
+
+	/// Refresh indices every `n` seconds
+	#[arg(long, default_value = "300")]
+	refresh_delay: usize,
+}
+
+impl CliCmd for ServerCommand {
+	async fn run(
+		self,
+		ctx: GlobalContext,
+		flag: CancelFlag,
+	) -> Result<i32, CancelableTaskError<anyhow::Error>> {
+		let datasets = {
+			let mut datasets = Vec::new();
+			for c in &self.config {
+				let ds = Datasets::open(&c, &ctx.config.workdir_root)
+					.await
+					.with_context(|| format!("while opening dataset for {}", c.display()))?;
+				datasets.push(Arc::new(ds));
+			}
+
+			Arc::new(datasets)
+		};
+
+		// Start auto-refresh task
+		if !self.no_refresh {
+			let datasets = datasets.clone();
+			let jobs = self.refresh_jobs.max(1);
+			let delay = self.refresh_delay.max(1);
+
+			async fn refresh_dataset(ds: &Datasets, jobs: usize) -> Result<(), DatasetError> {
+				if ds.needs_fts().await? {
+					let state = ExtractState { ignore_mime: false };
+					match ds.fts_refresh(&state, jobs, None).await {
+						Ok(()) => {}
+						Err(CancelableTaskError::Error(err)) => return Err(err),
+						Err(CancelableTaskError::Cancelled) => unreachable!(),
+					};
+				}
+
+				return Ok(());
+			}
+
+			tokio::task::spawn(async move {
+				loop {
+					for ds in datasets.iter() {
+						match refresh_dataset(ds, jobs).await {
+							Ok(x) => x,
+							Err(error) => {
+								error!(
+									message = "Error while refreshing dataset",
+									dataset = ds.config.dataset.name.as_str(),
+									?error
+								);
+							}
+						}
+
+						tokio::time::sleep(Duration::from_secs(10)).await;
+					}
+
+					tokio::time::sleep(Duration::from_secs(delay as u64)).await;
+				}
+			});
+		}
+
+		let bearer = BearerToken(ctx.config.api_token.clone().map(Arc::new));
+
+		let mut router = Router::new();
+		for d in datasets.iter() {
+			let prefix = format!("/{}", d.config.dataset.name);
+			router = router.merge(pile_serve::router_prefix(
+				d.clone(),
+				!self.no_docs,
+				Some(&prefix),
+			))
+		}
+
+		router = router.merge(
+			Router::new()
+				.route("/datasets", get(list_datasets))
+				.with_state(datasets.clone()),
+		);
+
+		if !self.no_docs {
+			let docs_path = "/docs";
+			let docs = SwaggerUi::new(docs_path)
+				.url(format!("{}/openapi.json", docs_path), Api::openapi());
+
+			router = router.merge(docs);
+		}
+
+		router = router.layer(from_fn_with_state(bearer, bearer_auth_middleware));
+
+		let app = router.into_make_service_with_connect_info::<std::net::SocketAddr>();
+
+		let listener = match tokio::net::TcpListener::bind(ctx.config.server_addr.clone()).await {
+			Ok(x) => x,
+			Err(error) => {
+				match error.kind() {
+					std::io::ErrorKind::AddrInUse => {
+						error!(
+							message = "Cannot bind to address, already in use",
+							addr = ctx.config.server_addr
+						);
+					}
+					_ => {
+						error!(message = "Error while starting server", ?error);
+					}
+				}
+
+				std::process::exit(1);
+			}
+		};
+
+		match listener.local_addr() {
+			Ok(x) => info!("listening on http://{x}"),
+			Err(error) => {
+				error!(message = "Could not determine local address", ?error);
+				return Err(anyhow::Error::from(error).into());
+			}
+		}
+
+		match axum::serve(listener, app)
+			.with_graceful_shutdown(async move { flag.await_cancel().await })
+			.await
+		{
+			Ok(_) => {}
+			Err(error) => {
+				error!(message = "Error while serving api", ?error);
+				return Err(anyhow::Error::from(error).into());
+			}
+		}
+
+		return Err(CancelableTaskError::Cancelled);
+	}
+}
+
+//
+// MARK: bearer auth middleware
+//
+
+#[derive(Clone)]
+struct BearerToken(Option<Arc<String>>);
+
+async fn bearer_auth_middleware(
+	State(BearerToken(expected)): State<BearerToken>,
+	request: Request,
+	next: Next,
+) -> Response {
+	let Some(expected) = expected else {
+		return next.run(request).await;
+	};
+
+	let authorized = request
+		.headers()
+		.get(axum::http::header::AUTHORIZATION)
+		.and_then(|v| v.to_str().ok())
+		.and_then(|v| v.strip_prefix("Bearer "))
+		.is_some_and(|token| token == expected.as_str());
+
+	if authorized {
+		next.run(request).await
+	} else {
+		StatusCode::UNAUTHORIZED.into_response()
+	}
+}
+
+//
+// MARK: routes
+//
+
+#[derive(OpenApi)]
+#[openapi(
+	tags(),
+	paths(list_datasets),
+	components(schemas(ListDatasetsResponse))
+)]
+pub(crate) struct Api;
+
+#[derive(Serialize, ToSchema)]
+pub struct ListDatasetsResponse {
+	name: String,
+}
+
+/// List all datasets served by this server
+#[utoipa::path(
+	get,
+	path = "/datasets",
+	responses(
+		(status = 200, description = "List of datasets"),
+		(status = 500, description = "Internal server error"),
+	)
+)]
+pub async fn list_datasets(State(state): State<Arc<Vec<Arc<Datasets>>>>) -> Response {
+	let datasets = state
+		.iter()
+		.map(|x| ListDatasetsResponse {
+			name: x.config.dataset.name.clone().into(),
+		})
+		.collect::<Vec<_>>();
+
+	return (StatusCode::OK, Json(datasets)).into_response();
+}

crates/pile/src/config/config.rs

@@ -0,0 +1,109 @@
+use serde::Deserialize;
+use std::{num::NonZeroUsize, path::PathBuf};
+use tracing::debug;
+
+use crate::config::{
+	env::load_env,
+	logging::{LoggingFormat, LoggingInitializer, LoggingPreset, LoggingTarget, LokiConfig},
+};
+
+/// Note that the field of this struct are not capitalized.
+/// Envy is case-insensitive, and expects Rust fields to be snake_case.
+#[derive(Debug, Deserialize, Clone)]
+pub struct PileServerConfig {
+	#[serde(flatten)]
+	pub loki: Option<LokiConfig>,
+
+	/// The logging level to run with
+	#[serde(default)]
+	pub loglevel: LoggingPreset,
+
+	#[serde(default)]
+	pub logformat: LoggingFormat,
+
+	/// How many worker threads to use
+	pub threads: Option<NonZeroUsize>,
+
+	/// IP and port to bind to
+	/// Should look like `127.0.0.1:3030`
+	pub server_addr: String,
+
+	pub api_token: Option<String>,
+	pub workdir_root: PathBuf,
+}
+
+impl Default for PileServerConfig {
+	fn default() -> Self {
+		Self {
+			loki: None,
+			loglevel: LoggingPreset::Debug,
+			logformat: LoggingFormat::Ansi,
+			threads: None,
+			server_addr: "0.0.0.0:3000".into(),
+			api_token: None,
+			workdir_root: "./.pile".into(),
+		}
+	}
+}
+
+impl PileServerConfig {
+	pub fn load(with_env: bool, cli_log_level: LoggingPreset) -> Self {
+		let config = match with_env {
+			false => Self::default(),
+			true => {
+				let env = match load_env::<Self>() {
+					Ok(x) => x,
+
+					#[expect(clippy::print_stdout)]
+					Err(err) => {
+						println!("Error while loading .env: {err}");
+						std::process::exit(1);
+					}
+				};
+				env.get_config().clone()
+			}
+		};
+
+		{
+			let res = LoggingInitializer {
+				app_name: "pile-server",
+				loki: config.loki.clone(),
+				preset: if with_env {
+					config.loglevel
+				} else {
+					cli_log_level
+				},
+				target: LoggingTarget::Stderr {
+					format: config.logformat,
+				},
+			}
+			.initialize();
+
+			if let Err(e) = res {
+				#[expect(clippy::print_stderr)]
+				for e in e.chain() {
+					eprintln!("{e}");
+				}
+
+				std::process::exit(1);
+			}
+		}
+
+		debug!(message = "Config loaded", ?config);
+
+		return config;
+	}
+
+	pub fn make_runtime(&self) -> tokio::runtime::Runtime {
+		let mut rt = tokio::runtime::Builder::new_multi_thread();
+		rt.enable_all();
+		if let Some(threads) = self.threads {
+			rt.worker_threads(threads.into());
+		}
+
+		#[expect(clippy::unwrap_used)]
+		let rt = rt.build().unwrap();
+
+		return rt;
+	}
+}

crates/pile/src/config/env.rs

@@ -0,0 +1,108 @@
+#![expect(dead_code)]
+
+use serde::de::DeserializeOwned;
+use std::{
+	collections::HashMap,
+	env::VarError,
+	io::ErrorKind,
+	path::{Path, PathBuf},
+};
+use thiserror::Error;
+
+/// An error we might encounter when loading an env
+#[derive(Debug, Error)]
+pub enum EnvLoadError {
+	#[error("i/o error")]
+	IOError(#[from] std::io::Error),
+
+	#[error("varerror")]
+	VarError(#[from] VarError),
+
+	#[error("line parse error: `{on_line}` at char {at_char}")]
+	LineParse { on_line: String, at_char: usize },
+
+	#[error("other dotenvy error")]
+	Other(#[from] dotenvy::Error),
+
+	#[error("missing value {0}")]
+	MissingValue(String),
+
+	#[error("parse error: {0}")]
+	OtherParseError(String),
+}
+
+pub enum LoadedEnv<T> {
+	/// We loaded config from `.env` and env vars
+	FoundFile { config: T, path: PathBuf },
+
+	/// We could not find `.env` and only loaded env vars
+	OnlyVars(T),
+}
+
+impl<T> LoadedEnv<T> {
+	pub fn get_config(&self) -> &T {
+		match self {
+			Self::FoundFile { config, .. } => config,
+			Self::OnlyVars(config) => config,
+		}
+	}
+}
+
+/// Load the configuration type `T` from the current environment,
+/// including the `.env` if it exists.
+#[expect(clippy::wildcard_enum_match_arm)]
+pub fn load_env<T: DeserializeOwned>() -> Result<LoadedEnv<T>, EnvLoadError> {
+	let env_path = match dotenvy::dotenv() {
+		Ok(path) => Some(path),
+
+		Err(dotenvy::Error::Io(err)) => match err.kind() {
+			ErrorKind::NotFound => None,
+			_ => return Err(EnvLoadError::IOError(err)),
+		},
+
+		Err(dotenvy::Error::EnvVar(err)) => {
+			return Err(EnvLoadError::VarError(err));
+		}
+
+		Err(dotenvy::Error::LineParse(on_line, at_char)) => {
+			return Err(EnvLoadError::LineParse { on_line, at_char });
+		}
+
+		Err(err) => {
+			return Err(EnvLoadError::Other(err));
+		}
+	};
+
+	match envy::from_env::<T>() {
+		Ok(config) => {
+			if let Some(path) = env_path {
+				return Ok(LoadedEnv::FoundFile { path, config });
+			} else {
+				return Ok(LoadedEnv::OnlyVars(config));
+			}
+		}
+
+		Err(envy::Error::MissingValue(value)) => {
+			return Err(EnvLoadError::MissingValue(value.into()));
+		}
+
+		Err(envy::Error::Custom(message)) => {
+			return Err(EnvLoadError::OtherParseError(message));
+		}
+	};
+}
+
+/// Load an .env file to a hashmap.
+///
+/// This function does not read the current env,
+/// only parsing vars explicitly declared in the given file.
+pub fn load_env_dict(p: impl AsRef<Path>) -> Result<HashMap<String, String>, EnvLoadError> {
+	let mut out = HashMap::new();
+
+	for item in dotenvy::from_filename_iter(p)? {
+		let (key, val) = item?;
+		out.insert(key, val);
+	}
+
+	return Ok(out);
+}

crates/pile/src/config/logging.rs

@@ -1,7 +1,13 @@
+use anyhow::Result;
 use clap::ValueEnum;
+use indicatif::MultiProgress;
 use serde::Deserialize;
 use std::{fmt::Display, str::FromStr};
-use tracing_subscriber::EnvFilter;
+use tracing_indicatif::IndicatifWriter;
+use tracing_subscriber::{
+	EnvFilter, Layer, fmt::MakeWriter, layer::SubscriberExt, util::SubscriberInitExt,
+};
+use url::Url;
 
 #[derive(Debug, Default)]
 pub enum LogLevel {
@@ -32,6 +38,7 @@ pub enum LoggingPreset {
 	Info,
 	Debug,
 	Trace,
+	Loki,
 }
 
 pub struct LoggingConfig {
@@ -138,6 +145,203 @@ impl LoggingPreset {
 				pile_dataset: LogLevel::Trace,
 				pile_toolbox: LogLevel::Trace,
 			},
+
+			Self::Loki => LoggingConfig {
+				other: LogLevel::Warn,
+				extractor: LogLevel::Error,
+
+				pile: LogLevel::Trace,
+				pile_flac: LogLevel::Trace,
+				pile_config: LogLevel::Trace,
+				pile_dataset: LogLevel::Trace,
+				pile_toolbox: LogLevel::Trace,
+			},
 		}
 	}
 }
+
+//
+// MARK: initializer
+//
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct LokiConfig {
+	pub loki_host: Url,
+	pub loki_user: String,
+	pub loki_pass: String,
+	pub loki_node_name: String,
+}
+
+/// Where to print logs
+#[expect(dead_code)]
+pub enum LoggingTarget {
+	/// Send logs to stdout
+	Stdout { format: LoggingFormat },
+
+	/// Send logs to stderr
+	Stderr { format: LoggingFormat },
+
+	/// Send logs to an IndicatifWriter.
+	///
+	/// This is the same as Stderr { format: Ansi {color:true} },
+	/// but uses an indicatifwriter with the given multiprogress.
+	Indicatif(MultiProgress),
+}
+
+/// How to print logs
+#[derive(Debug, Clone, Copy, Deserialize, Default)]
+pub enum LoggingFormat {
+	#[default]
+	Ansi,
+	AnsiNoColor,
+	Json,
+}
+
+pub struct LoggingInitializer {
+	pub app_name: &'static str,
+
+	/// If `Some`, send logs to the given loki server
+	pub loki: Option<LokiConfig>,
+
+	/// Log filter for printed logs
+	pub preset: LoggingPreset,
+
+	/// Where to print logs
+	pub target: LoggingTarget,
+}
+
+impl LoggingInitializer {
+	pub fn initialize(self) -> Result<()> {
+		let mut stderr_ansi_layer = None;
+		let mut stderr_json_layer = None;
+		let mut stdout_ansi_layer = None;
+		let mut stdout_json_layer = None;
+		let mut indicatif_layer = None;
+		match self.target {
+			LoggingTarget::Stderr {
+				format: LoggingFormat::Ansi,
+			} => {
+				stderr_ansi_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(true)
+						.with_writer(std::io::stderr)
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+
+			LoggingTarget::Stderr {
+				format: LoggingFormat::AnsiNoColor,
+			} => {
+				stderr_ansi_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(false)
+						.with_writer(std::io::stderr)
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+
+			LoggingTarget::Stderr {
+				format: LoggingFormat::Json,
+			} => {
+				stderr_json_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(false)
+						.json()
+						.flatten_event(true)
+						.with_writer(std::io::stderr)
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+
+			LoggingTarget::Stdout {
+				format: LoggingFormat::Ansi,
+			} => {
+				stdout_ansi_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(true)
+						.with_writer(std::io::stdout)
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+
+			LoggingTarget::Stdout {
+				format: LoggingFormat::AnsiNoColor,
+			} => {
+				stdout_ansi_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(false)
+						.with_writer(std::io::stdout)
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+
+			LoggingTarget::Stdout {
+				format: LoggingFormat::Json,
+			} => {
+				stdout_json_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(false)
+						.json()
+						.flatten_event(true)
+						.with_writer(std::io::stdout)
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+
+			LoggingTarget::Indicatif(mp) => {
+				let writer: IndicatifWriter<tracing_indicatif::writer::Stderr> =
+					IndicatifWriter::new(mp);
+
+				indicatif_layer = Some(
+					tracing_subscriber::fmt::Layer::default()
+						.without_time()
+						.with_ansi(true)
+						.with_writer(writer.make_writer())
+						.with_filter::<EnvFilter>(self.preset.get_config().into()),
+				)
+			}
+		}
+
+		let loki_layer = {
+			if let Some(cfg) = self.loki {
+				use anyhow::Context;
+				use base64::{Engine, prelude::BASE64_STANDARD};
+
+				let basic_auth = format!("{}:{}", cfg.loki_user, cfg.loki_pass);
+				let encoded_basic_auth = BASE64_STANDARD.encode(basic_auth.as_bytes());
+
+				let (layer, task) = tracing_loki::builder()
+					.label("node_name", cfg.loki_node_name)
+					.context("while building loki node_name label")?
+					.label("app", self.app_name)
+					.context("while building loki app label")?
+					.http_header("Authorization", format!("Basic {encoded_basic_auth}"))
+					.context("while building loki header")?
+					.build_url(cfg.loki_host)
+					.context("while building loki layer")?;
+
+				tokio::spawn(task);
+				Some(layer.with_filter::<EnvFilter>(LoggingPreset::Loki.get_config().into()))
+			} else {
+				None
+			}
+		};
+
+		tracing_subscriber::registry()
+			.with(loki_layer)
+			.with(stdout_ansi_layer)
+			.with(stdout_json_layer)
+			.with(stderr_ansi_layer)
+			.with(stderr_json_layer)
+			.with(indicatif_layer)
+			.init();
+
+		Ok(())
+	}
+}

crates/pile/src/config/mod.rs

@@ -1,2 +1,6 @@
-mod logging;
-pub use logging::*;
+pub mod env;
+pub mod logging;
+
+#[expect(clippy::module_inception)]
+mod config;
+pub use config::*;

crates/pile/src/main.rs

@@ -1,15 +1,13 @@
 use anyhow::{Context, Result};
 use clap::Parser;
-use config::LoggingPreset;
 use indicatif::MultiProgress;
 use pile_toolbox::cancelabletask::CancelableTaskResult;
 use std::process::ExitCode;
 use tracing::{error, warn};
-use tracing_indicatif::{IndicatifWriter, writer::Stderr};
-use tracing_subscriber::fmt::MakeWriter;
 
 use crate::{
 	command::{CliCmd, CliCmdDispatch, SubCommand},
+	config::{PileServerConfig, logging::LoggingPreset},
 	signal::start_signal_task,
 };
 
@@ -35,19 +33,12 @@ struct Cli {
 
 #[derive(Clone)]
 pub struct GlobalContext {
-	#[expect(dead_code)]
-	mp: MultiProgress,
+	pub mp: MultiProgress,
+	pub config: PileServerConfig,
 }
 
 fn main() -> ExitCode {
-	#[expect(clippy::unwrap_used)]
-	let rt = tokio::runtime::Builder::new_multi_thread()
-		.enable_all()
-		.worker_threads(10)
-		.build()
-		.unwrap();
-
-	match rt.block_on(main_inner()) {
+	match main_inner() {
 		Ok(code) => {
 			std::process::exit(code);
 		}
@@ -60,7 +51,7 @@ fn main() -> ExitCode {
 	}
 }
 
-async fn main_inner() -> Result<i32> {
+fn main_inner() -> Result<i32> {
 	let cli = Cli::parse();
 
 	let level_i: i16 = cli.v as i16 - cli.q as i16;
@@ -81,36 +72,32 @@ async fn main_inner() -> Result<i32> {
 	}
 
 	let mp = MultiProgress::new();
-	let writer: IndicatifWriter<Stderr> = IndicatifWriter::new(mp.clone());
+	let config = PileServerConfig::load(matches!(cli.cmd, SubCommand::Server { .. }), level);
+	let rt = config.make_runtime();
 
-	tracing_subscriber::fmt()
-		.with_env_filter(level.get_config())
-		.without_time()
-		.with_ansi(true)
-		.with_writer(writer.make_writer())
-		.init();
+	let ctx = GlobalContext { mp, config };
 
-	let ctx = GlobalContext { mp };
+	rt.block_on(async {
+		let task = cli.cmd.start(ctx).context("while starting task")?;
+		let signal_task = start_signal_task(task.flag().clone());
 
-	let task = cli.cmd.start(ctx).context("while starting task")?;
-	let signal_task = start_signal_task(task.flag().clone());
+		match task.join().await {
+			Ok(CancelableTaskResult::Finished(Ok(code))) => Ok(code),
+			Ok(CancelableTaskResult::Cancelled) => {
+				signal_task.abort();
+				warn!("Task cancelled successfully");
+				Ok(1)
+			}
 
-	match task.join().await {
-		Ok(CancelableTaskResult::Finished(Ok(code))) => Ok(code),
-		Ok(CancelableTaskResult::Cancelled) => {
-			signal_task.abort();
-			warn!("Task cancelled successfully");
-			Ok(1)
+			Err(err) => {
+				signal_task.abort();
+				Err(err).context("while joining task")
+			}
+
+			Ok(CancelableTaskResult::Finished(Err(err))) => {
+				signal_task.abort();
+				Err(err).context("while running task")
+			}
 		}
-
-		Err(err) => {
-			signal_task.abort();
-			Err(err).context("while joining task")
-		}
-
-		Ok(CancelableTaskResult::Finished(Err(err))) => {
-			signal_task.abort();
-			Err(err).context("while running task")
-		}
-	}
+	})
 }

default.nix

@@ -42,7 +42,10 @@ pileRustPlatform.buildRustPackage {
 
   postInstall = ''
     wrapProgram $out/bin/pile \
-      --prefix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath [ pkgs.pdfium-binaries ]}
+      ${if pkgs.stdenv.isDarwin then
+        "--prefix DYLD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath [ pkgs.pdfium-binaries ]}"
+      else
+        "--prefix LD_LIBRARY_PATH : ${pkgs.lib.makeLibraryPath [ pkgs.pdfium-binaries ]}"}
   '';
 
   meta = {

docker-compose.yml

@@ -0,0 +1,24 @@
+services:
+  pile:
+    #image: git.betalupi.com/mark/pile:latest
+    image: pile
+    container_name: pile
+    restart: unless-stopped
+
+    ports:
+      - 7100:7100
+    volumes:
+      - "./x.ignore/books:/data/books:ro"
+      - "./pile:/workdir"
+
+    environment:
+      SERVER_ADDR: "0.0.0.0:7100"
+      WORKDIR_ROOT: "/workdir"
+      API_TOKEN: "pile_token"
+      THREADS: 8
+      #LOKI_HOST: "http://loki:3100"
+      #LOKI_USER: "user"
+      #LOKI_PASS: "pass"
+      #LOKI_NODE_NAME: "pile"
+
+    command: "pile server -c /data/books/pile.toml"