nixpkgs/pkgs/build-support/rust/build-rust-crate/helpers.nix
Pierre-Étienne Meunier 0e8332ca2b Fixing "include"
2018-11-22 11:40:03 +00:00

27 lines
1 KiB
Nix

{stdenv, lib}:
{
kernel = stdenv.hostPlatform.parsed.kernel.name;
abi = stdenv.hostPlatform.parsed.abi.name;
cpu = stdenv.hostPlatform.parsed.cpu.name;
updateFeatures = f: up: functions: builtins.deepSeq f (lib.lists.foldl' (features: fun: fun features) (lib.attrsets.recursiveUpdate f up) functions);
mapFeatures = features: map (fun: fun { features = features; });
mkFeatures = feat: lib.lists.foldl (features: featureName:
if feat.${featureName} or false then
[ featureName ] ++ features
else
features
) [] (builtins.attrNames feat);
include = includedFiles: src: builtins.filterSource (path: type:
lib.lists.any (f:
let p = toString (src + ("/" + f));
suff = lib.strings.removePrefix p path;
in
suff == "" || (lib.strings.hasPrefix "/" suff)
) includedFiles
) src;
exclude = excludedFiles: src: builtins.filterSource (path: type:
lib.lists.all (f:
!lib.strings.hasPrefix (toString (src + ("/" + f))) path
) excludedFiles
) src;
}