lang/rust/patches/0002-rustc-bootstrap-cache.patch

   1 --- a/src/bootstrap/bootstrap.py
   2 +++ b/src/bootstrap/bootstrap.py
   3 @@ -546,7 +546,7 @@ class RustBuild(object):
   4                  shutil.rmtree(bin_root)
   5
   6              key = self.stage0_compiler.date
   7 -            cache_dst = os.path.join(self.build_dir, "cache")
   8 +            cache_dst = os.getenv('OPENWRT_RUSTC_BOOTSTRAP_CACHE', os.path.join(self.build_dir, "cache"))
   9              rustc_cache = os.path.join(cache_dst, key)
  10              if not os.path.exists(rustc_cache):
  11                  os.makedirs(rustc_cache)
  12 --- a/src/bootstrap/download.rs
  13 +++ b/src/bootstrap/download.rs
  14 @@ -520,7 +520,10 @@ impl Config {
  15          key: &str,
  16          destination: &str,
  17      ) {
  18 -        let cache_dst = self.out.join("cache");
  19 +        let cache_dst = match env::var_os("OPENWRT_RUSTC_BOOTSTRAP_CACHE") {
  20 +            Some(v) => PathBuf::from(v),
  21 +            None => self.out.join("cache"),
  22 +        };
  23          let cache_dir = cache_dst.join(key);
  24          if !cache_dir.exists() {
  25              t!(fs::create_dir_all(&cache_dir));
  26 @@ -647,7 +650,10 @@ download-rustc = false
  27          let llvm_assertions = self.llvm_assertions;
  28
  29          let cache_prefix = format!("llvm-{llvm_sha}-{llvm_assertions}");
  30 -        let cache_dst = self.out.join("cache");
  31 +        let cache_dst = match env::var_os("OPENWRT_RUSTC_BOOTSTRAP_CACHE") {
  32 +            Some(v) => PathBuf::from(v),
  33 +            None => self.out.join("cache"),
  34 +        };
  35          let rustc_cache = cache_dst.join(cache_prefix);
  36          if !rustc_cache.exists() {
  37              t!(fs::create_dir_all(&rustc_cache));