forked from mirrors/nixpkgs
58ea28eb2c
`sourceByRegex src regexes` should include a source file if one of the
regular expressions `regexes` matches the path of that file relative
to `src`.
However to compute this relative path `sourceByRegex` uses:
```
relPath = lib.removePrefix (toString src + "/") (toString path);
```
Note that `toString path` evaluates to an absolute file somewhere
under `src` and not under `/nix/store`.
The problem is that this doesn't work if `src` is a `cleanSourceWith`
invocation as well because `toString src` will then evaluate to
`src.outPath` which will evaluate to `builtins.filterSource ...` which
evaluates to a path in `/nix/store` which is not a prefix of `path`.
The solution is to replace `src` with `origSrc` where
```
origSrc = if isFiltered then src.origSrc else src;
isFiltered = src ? _isLibCleanSourceWith;
```
Test this by executing the following from the nixpkgs repo:
```
(cat << 'EOI'
let
pkgs = import ./. {};
in pkgs.runCommand "test-sourceByRegex" {
test_sourceByRegex =
let
src1 = pkgs.lib.sourceByRegex ./. [ "^test-sourceByRegex.nix$" ];
src2 = pkgs.lib.sourceByRegex src1 [ "^test-sourceByRegex.nix$" ];
in src2 + "/test-sourceByRegex.nix";
} ''
cp $test_sourceByRegex $out
''
EOI
) > test-sourceByRegex.nix
nix-build test-sourceByRegex.nix
```
|
||
|---|---|---|
| .. | ||
| systems | ||
| tests | ||
| asserts.nix | ||
| attrsets.nix | ||
| customisation.nix | ||
| debug.nix | ||
| default.nix | ||
| deprecated.nix | ||
| fetchers.nix | ||
| filesystem.nix | ||
| fixed-points.nix | ||
| generators.nix | ||
| kernel.nix | ||
| licenses.nix | ||
| lists.nix | ||
| meta.nix | ||
| minver.nix | ||
| modules.nix | ||
| options.nix | ||
| sources.nix | ||
| strings-with-deps.nix | ||
| strings.nix | ||
| trivial.nix | ||
| types.nix | ||
| versions.nix | ||
| zip-int-bits.nix | ||