# Tiny generated-project interface fixture. Real offline Yarn installation
# remains covered by the consuming Studio and Package-builder checks.
{ stdenvNoCC, nodejs }:
{ src, overrideAttrs ? null }:
let
  project = stdenvNoCC.mkDerivation {
    name = "yarn-dependencies-transfer-fixture";
    inherit src;
    configurePhase = ''
      mkdir -p node_modules/fixture node_modules/.bin .yarn/cache
      printf '%s\n' '{"main":"index.cjs"}' > node_modules/fixture/package.json
      printf '%s\n' 'module.exports = {value: "retained dependency"};' > node_modules/fixture/index.cjs
      ln node_modules/fixture/index.cjs node_modules/fixture/twin.cjs
      ln -s fixture node_modules/alias
      printf '%s\n' '#!${nodejs}/bin/node' 'console.log("linked executable");' > node_modules/fixture/cli.cjs
      chmod +x node_modules/fixture/cli.cjs
      ln -s ../fixture/cli.cjs node_modules/.bin/fixture
      printf '%s\n' 'hidden dependency data' > node_modules/.fixture-data
      printf '%s\n' 'disposable linker state' > node_modules/.yarn-state.yml
      printf '%s\n' 'disposable archive' > .yarn/cache/fixture.zip
    '';
    postInstall = ''
      test ! -e node_modules
      test ! -e .yarn/cache
      test ! -e "$out/.yarn-state.yml"
      test ! -e "$out/node_modules"
      test "$(stat -c %i "$out/fixture/index.cjs")" = "$(stat -c %i "$out/fixture/twin.cjs")"
    '';
  };
in
if overrideAttrs == null then project else project.overrideAttrs overrideAttrs