diff --git a/lib/sources.nix b/lib/sources.nix index c7a0c000de6..407f9d21b8b 100644 --- a/lib/sources.nix +++ b/lib/sources.nix @@ -104,14 +104,26 @@ let inherit src; }; - # Get all files ending with the specified suffices from the given - # directory or its descendants. E.g. `sourceFilesBySuffices ./dir - # [".xml" ".c"]'. - sourceFilesBySuffices = path: exts: + /* + Get all files ending with the specified suffices from the given + source directory or its descendants, omitting files that do not match + any suffix. The result of the example below will include files like + `./dir/module.c` and `./dir/subdir/doc.xml` if present. + + Type: sourceLike -> [String] -> Source + + Example: + sourceFilesBySuffices ./. [ ".xml" ".c" ] + */ + sourceFilesBySuffices = + # Path or source containing the files to be returned + src: + # A list of file suffix strings + exts: let filter = name: type: let base = baseNameOf (toString name); in type == "directory" || lib.any (ext: lib.hasSuffix ext base) exts; - in cleanSourceWith { inherit filter; src = path; }; + in cleanSourceWith { inherit filter src; }; pathIsGitRepo = path: (tryEval (commitIdFromGitRepo path)).success;