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qwen/nodejs/node_modules/jest-changed-files/build/index.js

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+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.getChangedFilesForRoots = exports.findRepos = void 0;
+function _pLimit() {
+  const data = _interopRequireDefault(require('p-limit'));
+  _pLimit = function () {
+    return data;
+  };
+  return data;
+}
+function _jestUtil() {
+  const data = require('jest-util');
+  _jestUtil = function () {
+    return data;
+  };
+  return data;
+}
+var _git = _interopRequireDefault(require('./git'));
+var _hg = _interopRequireDefault(require('./hg'));
+var _sl = _interopRequireDefault(require('./sl'));
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+// This is an arbitrary number. The main goal is to prevent projects with
+// many roots (50+) from spawning too many processes at once.
+const mutex = (0, _pLimit().default)(5);
+const findGitRoot = dir => mutex(() => _git.default.getRoot(dir));
+const findHgRoot = dir => mutex(() => _hg.default.getRoot(dir));
+const findSlRoot = dir => mutex(() => _sl.default.getRoot(dir));
+const getChangedFilesForRoots = async (roots, options) => {
+  const repos = await findRepos(roots);
+  const changedFilesOptions = {
+    includePaths: roots,
+    ...options
+  };
+  const gitPromises = Array.from(repos.git, repo =>
+    _git.default.findChangedFiles(repo, changedFilesOptions)
+  );
+  const hgPromises = Array.from(repos.hg, repo =>
+    _hg.default.findChangedFiles(repo, changedFilesOptions)
+  );
+  const slPromises = Array.from(repos.sl, repo =>
+    _sl.default.findChangedFiles(repo, changedFilesOptions)
+  );
+  const changedFiles = (
+    await Promise.all([...gitPromises, ...hgPromises, ...slPromises])
+  ).reduce((allFiles, changedFilesInTheRepo) => {
+    for (const file of changedFilesInTheRepo) {
+      allFiles.add(file);
+    }
+    return allFiles;
+  }, new Set());
+  return {
+    changedFiles,
+    repos
+  };
+};
+exports.getChangedFilesForRoots = getChangedFilesForRoots;
+const findRepos = async roots => {
+  const [gitRepos, hgRepos, slRepos] = await Promise.all([
+    Promise.all(roots.map(findGitRoot)),
+    Promise.all(roots.map(findHgRoot)),
+    Promise.all(roots.map(findSlRoot))
+  ]);
+  return {
+    git: new Set(gitRepos.filter(_jestUtil().isNonNullable)),
+    hg: new Set(hgRepos.filter(_jestUtil().isNonNullable)),
+    sl: new Set(slRepos.filter(_jestUtil().isNonNullable))
+  };
+};
+exports.findRepos = findRepos;