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(); // ALLOWED: Accessing environment during build time shouldn't be prohibited. #[allow(clippy::disallowed_methods)] let target = std::env::var("TARGET").unwrap(); println!("cargo:rustc-env=RUST_HOST_TARGET={target}"); } fn compress_man() { // ALLOWED: Accessing environment during build time shouldn't be prohibited. #[allow(clippy::disallowed_methods)] 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::>(); 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()) }