initial commit taken from gitlab.lrz.de

node_modules/metro-cache/src/FileStore.js

@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2018-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * 
+ */
+
+'use strict';var _slicedToArray = function () {function sliceIterator(arr, i) {var _arr = [];var _n = true;var _d = false;var _e = undefined;try {for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {_arr.push(_s.value);if (i && _arr.length === i) break;}} catch (err) {_d = true;_e = err;} finally {try {if (!_n && _i["return"]) _i["return"]();} finally {if (_d) throw _e;}}return _arr;}return function (arr, i) {if (Array.isArray(arr)) {return arr;} else if (Symbol.iterator in Object(arr)) {return sliceIterator(arr, i);} else {throw new TypeError("Invalid attempt to destructure non-iterable instance");}};}();
+
+const fs = require('fs');
+const mkdirp = require('mkdirp');
+const path = require('path');
+
+
+
+
+
+
+
+const JOINER_DATA = '\0\0';
+const JOINER_LIST = '\0';
+
+class FileStore {
+
+
+  constructor(options) {
+    const root = options.root;
+
+    for (let i = 0; i < 256; i++) {
+      mkdirp.sync(path.join(root, ('0' + i.toString(16)).slice(-2)));
+    }
+
+    this._root = root;
+  }
+
+  get(key) {
+    try {
+      const data = fs.readFileSync(this._getFilePath(key), 'utf8');var _data$split =
+      data.split(JOINER_DATA),_data$split2 = _slicedToArray(_data$split, 3);const code = _data$split2[0],dependencies = _data$split2[1],map = _data$split2[2];
+
+      return {
+        code,
+        dependencies: dependencies ? dependencies.split(JOINER_LIST) : [],
+        map: JSON.parse(map) };
+
+    } catch (err) {
+      if (err.code === 'ENOENT') {
+        return null;
+      }
+
+      throw err;
+    }
+  }
+
+  set(key, value) {
+    const data = [
+    value.code,
+    value.dependencies.join(JOINER_LIST),
+    JSON.stringify(value.map)].
+    join(JOINER_DATA);
+
+    fs.writeFileSync(this._getFilePath(key), data);
+  }
+
+  _getFilePath(key) {
+    return path.join(
+    this._root,
+    key.slice(0, 1).toString('hex'),
+    key.slice(1).toString('hex'));
+
+  }}
+
+
+module.exports = FileStore;