Add node modules and compiled JavaScript from main

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

@@ -0,0 +1,86 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.findRepos = exports.getChangedFilesForRoots = void 0;
+
+function _throat() {
+  const data = _interopRequireDefault(require('throat'));
+
+  _throat = function () {
+    return data;
+  };
+
+  return data;
+}
+
+var _git = _interopRequireDefault(require('./git'));
+
+var _hg = _interopRequireDefault(require('./hg'));
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+function notEmpty(value) {
+  return value != null;
+} // 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, _throat().default)(5);
+
+const findGitRoot = dir => mutex(() => _git.default.getRoot(dir));
+
+const findHgRoot = dir => mutex(() => _hg.default.getRoot(dir));
+
+const getChangedFilesForRoots = async (roots, options) => {
+  const repos = await findRepos(roots);
+  const changedFilesOptions = {
+    includePaths: roots,
+    ...options
+  };
+  const gitPromises = Array.from(repos.git).map(repo =>
+    _git.default.findChangedFiles(repo, changedFilesOptions)
+  );
+  const hgPromises = Array.from(repos.hg).map(repo =>
+    _hg.default.findChangedFiles(repo, changedFilesOptions)
+  );
+  const changedFiles = (
+    await Promise.all(gitPromises.concat(hgPromises))
+  ).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 = await Promise.all(
+    roots.reduce((promises, root) => promises.concat(findGitRoot(root)), [])
+  );
+  const hgRepos = await Promise.all(
+    roots.reduce((promises, root) => promises.concat(findHgRoot(root)), [])
+  );
+  return {
+    git: new Set(gitRepos.filter(notEmpty)),
+    hg: new Set(hgRepos.filter(notEmpty))
+  };
+};
+
+exports.findRepos = findRepos;