cleanSourceWith

lib.cleanSourceWith

Docs pulled from | This Revision | 10 minutes ago

Like builtins.filterSource, except it will compose with itself, allowing you to chain multiple calls together without any intermediate copies being put in the nix store.

Examples

`cleanSourceWith` usage example

lib.cleanSourceWith {
  filter = f;
  src = lib.cleanSourceWith {
    filter = g;
    src = ./.;
  };
}
# Succeeds!

builtins.filterSource f (builtins.filterSource g ./.)
# Fails!

Noogle detected

Aliases

lib.sources.cleanSourceWith

Implementation

The following is the current implementation of this function.

cleanSourceWith =
    {
      # A path or cleanSourceWith result to filter and/or rename.
      src,
      # Optional with default value: constant true (include everything)
      # The function will be combined with the && operator such
      # that src.filter is called lazily.
      # For implementing a filter, see
      # https://nixos.org/nix/manual/#builtin-filterSource
      # Type: A function (path -> type -> bool)
      filter ? _path: _type: true,
      # Optional name to use as part of the store path.
      # This defaults to `src.name` or otherwise `"source"`.
      name ? null,
    }:
    let
      orig = toSourceAttributes src;
    in
    fromSourceAttributes {
      inherit (orig) origSrc;
      filter = path: type: filter path type && orig.filter path type;
      name = if name != null then name else orig.name;
    };