cargo/build.rs
2021-10-08 12:54:24 -07:00

43 lines
1.3 KiB
Rust

use flate2::{Compression, GzBuilder};
use std::ffi::OsStr;
use std::fs;
use std::path::Path;
fn main() {
compress_man();
println!(
"cargo:rustc-env=RUST_HOST_TARGET={}",
std::env::var("TARGET").unwrap()
);
}
fn compress_man() {
let out_path = Path::new(&std::env::var("OUT_DIR").unwrap()).join("man.tgz");
let dst = fs::File::create(out_path).unwrap();
let encoder = GzBuilder::new()
.filename("man.tar")
.write(dst, Compression::best());
let mut ar = tar::Builder::new(encoder);
ar.mode(tar::HeaderMode::Deterministic);
let mut add_files = |dir, extension| {
let mut files = fs::read_dir(dir)
.unwrap()
.map(|e| e.unwrap().path())
.collect::<Vec<_>>();
files.sort();
for path in files {
if path.extension() != Some(extension) {
continue;
}
println!("cargo:rerun-if-changed={}", path.display());
ar.append_path_with_name(&path, path.file_name().unwrap())
.unwrap();
}
};
add_files(Path::new("src/etc/man"), OsStr::new("1"));
add_files(Path::new("src/doc/man/generated_txt"), OsStr::new("txt"));
let encoder = ar.into_inner().unwrap();
encoder.finish().unwrap();
}