55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
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";
|
|
|
|
fn main() {
|
|
println!("cargo:rerun-if-changed=build.rs");
|
|
|
|
if env::var("CARGO_FEATURE_PDFIUM").is_err() {
|
|
return;
|
|
}
|
|
|
|
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
|
|
|
|
// OUT_DIR is target/<profile>/build/<pkg>-<hash>/out
|
|
// Go up 3 levels to reach target/<profile>/
|
|
let profile_dir = out_dir
|
|
.ancestors()
|
|
.nth(3)
|
|
.expect("unexpected OUT_DIR structure")
|
|
.to_path_buf();
|
|
|
|
let lib_path = profile_dir.join("libpdfium.so");
|
|
|
|
if !lib_path.exists() {
|
|
let tgz_path = out_dir.join("pdfium.tgz");
|
|
|
|
eprintln!("cargo:warning=Downloading PDFium from {PDFIUM_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 status = std::process::Command::new("tar")
|
|
.args([
|
|
"-xzf",
|
|
tgz_path.to_str().unwrap(),
|
|
"-C",
|
|
out_dir.to_str().unwrap(),
|
|
])
|
|
.status()
|
|
.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");
|
|
}
|
|
|
|
println!("cargo:rustc-link-search=native={}", profile_dir.display());
|
|
println!("cargo:rustc-link-lib=dylib=pdfium");
|
|
println!("cargo:rustc-link-arg=-Wl,-rpath,$ORIGIN");
|
|
}
|