1 files changed, 117 insertions, 0 deletions
diff --git a/remote/test/puppeteer/utils/doclint/Source.js b/remote/test/puppeteer/utils/doclint/Source.js
new file mode 100644
index 0000000000..0f7c13234f
--- /dev/null
+++ b/remote/test/puppeteer/utils/doclint/Source.js
@@ -0,0 +1,117 @@
+/**
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const path = require('path');
+const util = require('util');
+const fs = require('fs');
+
+const readFileAsync = util.promisify(fs.readFile);
+const readdirAsync = util.promisify(fs.readdir);
+const writeFileAsync = util.promisify(fs.writeFile);
+
+const PROJECT_DIR = path.join(__dirname, '..', '..');
+
+class Source {
+  /**
+   * @param {string} filePath
+   * @param {string} text
+   */
+  constructor(filePath, text) {
+    this._filePath = filePath;
+    this._projectPath = path.relative(PROJECT_DIR, filePath);
+    this._name = path.basename(filePath);
+    this._text = text;
+    this._hasUpdatedText = false;
+  }
+
+  /**
+   * @returns {string}
+   */
+  filePath() {
+    return this._filePath;
+  }
+
+  /**
+   * @returns {string}
+   */
+  projectPath() {
+    return this._projectPath;
+  }
+
+  /**
+   * @returns {string}
+   */
+  name() {
+    return this._name;
+  }
+
+  /**
+   * @param {string} text
+   * @returns {boolean}
+   */
+  setText(text) {
+    if (text === this._text) return false;
+    this._hasUpdatedText = true;
+    this._text = text;
+    return true;
+  }
+
+  /**
+   * @returns {string}
+   */
+  text() {
+    return this._text;
+  }
+
+  /**
+   * @returns {boolean}
+   */
+  hasUpdatedText() {
+    return this._hasUpdatedText;
+  }
+
+  async save() {
+    await writeFileAsync(this.filePath(), this.text());
+  }
+
+  /**
+   * @param {string} filePath
+   * @returns {!Promise<Source>}
+   */
+  static async readFile(filePath) {
+    filePath = path.resolve(filePath);
+    const text = await readFileAsync(filePath, { encoding: 'utf8' });
+    return new Source(filePath, text);
+  }
+
+  /**
+   * @param {string} dirPath
+   * @param {string=} extension
+   * @returns {!Promise<!Array<!Source>>}
+   */
+  static async readdir(dirPath, extension = '') {
+    const fileNames = await readdirAsync(dirPath);
+    const filePaths = fileNames
+      .filter((fileName) => fileName.endsWith(extension))
+      .map((fileName) => path.join(dirPath, fileName))
+      .filter((filePath) => {
+        const stats = fs.lstatSync(filePath);
+        return stats.isDirectory() === false;
+      });
+    return Promise.all(filePaths.map((filePath) => Source.readFile(filePath)));
+  }
+}
+module.exports = Source;