src/bootstrap/build/clean.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 //! Implementation of `make clean` in rustbuild.
  12 //!
  13 //! Responsible for cleaning out a build directory of all old and stale
  14 //! artifacts to prepare for a fresh build. Currently doesn't remove the
  15 //! `build/cache` directory (download cache) or the `build/$target/llvm`
  16 //! directory as we want that cached between builds.
  17
  18 use std::fs;
  19 use std::path::Path;
  20
  21 use build::Build;
  22
  23 pub fn clean(build: &Build) {
  24     rm_rf(build, "tmp".as_ref());
  25     rm_rf(build, &build.out.join("tmp"));
  26
  27     for host in build.config.host.iter() {
  28
  29         let out = build.out.join(host);
  30
  31         rm_rf(build, &out.join("compiler-rt"));
  32         rm_rf(build, &out.join("doc"));
  33
  34         for stage in 0..4 {
  35             rm_rf(build, &out.join(format!("stage{}", stage)));
  36             rm_rf(build, &out.join(format!("stage{}-std", stage)));
  37             rm_rf(build, &out.join(format!("stage{}-rustc", stage)));
  38             rm_rf(build, &out.join(format!("stage{}-tools", stage)));
  39             rm_rf(build, &out.join(format!("stage{}-test", stage)));
  40         }
  41     }
  42 }
  43
  44 fn rm_rf(build: &Build, path: &Path) {
  45     if path.exists() {
  46         build.verbose(&format!("removing `{}`", path.display()));
  47         t!(fs::remove_dir_all(path));
  48     }
  49 }