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use flate2::{Compression, GzBuilder};
use std::ffi::OsStr;
use std::fs;
use std::path::Path;
use std::process::Command;
fn main() {
commit_info();
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();
}
fn commit_info() {
if !Path::new(".git").exists() {
return;
}
let output = match Command::new("git")
.arg("log")
.arg("-1")
.arg("--date=short")
.arg("--format=%H %h %cd")
.arg("--abbrev=9")
.output()
{
Ok(output) if output.status.success() => output,
_ => return,
};
let stdout = String::from_utf8(output.stdout).unwrap();
let mut parts = stdout.split_whitespace();
let mut next = || parts.next().unwrap();
println!("cargo:rustc-env=CARGO_COMMIT_HASH={}", next());
println!("cargo:rustc-env=CARGO_COMMIT_SHORT_HASH={}", next());
println!("cargo:rustc-env=CARGO_COMMIT_DATE={}", next())
}
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