build.rs

   1 use flate2::{Compression, GzBuilder};
   2 use std::ffi::OsStr;
   3 use std::fs;
   4 use std::path::Path;
   5
   6 fn main() {
   7     compress_man();
   8 }
   9
  10 fn compress_man() {
  11     let out_path = Path::new(&std::env::var("OUT_DIR").unwrap()).join("man.tgz");
  12     let dst = fs::File::create(out_path).unwrap();
  13     let encoder = GzBuilder::new()
  14         .filename("man.tar")
  15         .write(dst, Compression::best());
  16     let mut ar = tar::Builder::new(encoder);
  17
  18     let mut add_files = |dir, extension| {
  19         for entry in fs::read_dir(dir).unwrap() {
  20             let path = entry.unwrap().path();
  21             if path.extension() != Some(extension) {
  22                 continue;
  23             }
  24             println!("cargo:rerun-if-changed={}", path.display());
  25             ar.append_path_with_name(&path, path.file_name().unwrap())
  26                 .unwrap();
  27         }
  28     };
  29
  30     add_files(Path::new("src/etc/man"), OsStr::new("1"));
  31     add_files(Path::new("src/doc/man/generated_txt"), OsStr::new("txt"));
  32     let encoder = ar.into_inner().unwrap();
  33     encoder.finish().unwrap();
  34 }