/****************************************************************************
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Copyright (c) 2017-2019 Xiamen Yaji Software Co., Ltd.
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https://www.cocos.com/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated engine source code (the "Software"), a limited,
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worldwide, royalty-free, non-assignable, revocable and non-exclusive license
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to use Cocos Creator solely to develop games on your target platforms. You shall
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not use Cocos Creator software for developing other software or tools that's
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used for developing games. You are not granted to publish, distribute,
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sublicense, and/or sell copies of Cocos Creator.
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The software or tools in this License Agreement are licensed, not sold.
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Xiamen Yaji Software Co., Ltd. reserves all rights not expressly granted to you.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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var fs = wx.getFileSystemManager ? wx.getFileSystemManager() : null;
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function checkFsValid () {
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if (!fs) {
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console.warn('can not get the file system!');
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return new Error('file system does not exist!');
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}
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return null;
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}
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function deleteFile (filePath, callback) {
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var result = checkFsValid();
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if (result) return result;
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fs.unlink({
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filePath: filePath,
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success: function () {
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cc.log('Removed local file ' + filePath + ' successfully!');
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callback && callback(null);
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},
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fail: function (res) {
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console.warn(res.errMsg);
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callback && callback(new Error(res.errMsg));
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}
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});
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}
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function downloadFile (remoteUrl, filePath, callback) {
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wx.downloadFile({
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url: remoteUrl,
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filePath: filePath,
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success: function (res) {
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if (res.statusCode === 200) {
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callback && callback(null, res.tempFilePath || res.filePath);
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}
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else {
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if (res.filePath) {
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deleteFile(res.filePath);
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}
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console.warn("Download file failed: " + remoteUrl);
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console.warn(res.errMsg);
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callback && callback(new Error(res.errMsg), null);
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}
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},
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fail: function (res) {
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console.warn("Download file failed: " + remoteUrl);
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console.warn(res.errMsg);
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callback && callback(new Error(res.errMsg), null);
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}
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});
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}
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function saveFile (srcPath, destPath, callback) {
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wx.saveFile({
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tempFilePath: srcPath,
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filePath: destPath,
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success: function (res) {
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cc.log('save file finished:' + destPath);
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callback && callback(null, res.savedFilePath);
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},
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fail: function (res) {
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cc.log('save file failed:' + res.errMsg);
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callback && callback(new Error(res.errMsg), null);
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}
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});
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}
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function copyFile (srcPath, destPath, callback) {
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var result = checkFsValid();
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if (result) return result;
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fs.copyFile({
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srcPath: srcPath,
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destPath: destPath,
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success: function () {
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cc.log('copy file finished:' + destPath);
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callback && callback(null);
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},
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fail: function (res) {
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cc.log('copy file failed:' + res.errMsg);
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callback && callback(new Error(res.errMsg));
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}
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});
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}
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function writeFile (path, data, encoding, callback) {
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var result = checkFsValid();
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if (result) return result;
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fs.writeFile({
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filePath: path,
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encoding: encoding,
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data: data,
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success: callback ? function () {
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callback(null);
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} : undefined,
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fail: function (res) {
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console.warn(res.errMsg);
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callback && callback(new Error(res.errMsg));
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}
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});
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}
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function writeFileSync (path, data, encoding) {
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var result = checkFsValid();
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if (result) return result;
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try {
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fs.writeFileSync(path, data, encoding);
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return null;
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}
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catch (e) {
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console.warn(e.message);
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return new Error(e.message);
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}
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}
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function readFile (filePath, encoding, callback) {
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var result = checkFsValid();
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if (result) return result;
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fs.readFile({
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filePath: filePath,
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encoding: encoding,
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success: callback ? function (res) {
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callback(null, res.data);
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} : undefined,
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fail: function (res) {
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console.warn(res.errMsg);
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callback && callback (new Error(res.errMsg), null);
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}
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});
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}
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function readDir (filePath, callback) {
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var result = checkFsValid();
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if (result) {
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return result;
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}
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fs.readdir({
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dirPath: filePath,
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success: callback ? function (res) {
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callback(null, res.files);
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} : undefined,
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fail: callback ? function (res) {
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callback(new Error(res.errMsg), null);
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} : undefined
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});
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}
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function readText (filePath, callback) {
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return readFile(filePath, 'utf8', callback);
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}
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function readArrayBuffer (filePath, callback) {
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return readFile(filePath, '', callback);
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}
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function readJsonSync (path) {
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var result = checkFsValid();
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if (result) return result;
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try {
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var str = fs.readFileSync(path, 'utf8');
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return JSON.parse(str);
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}
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catch (e) {
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console.warn(e.message);
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return new Error(e.message);
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}
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}
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function makeDirSync (path, recursive) {
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var result = checkFsValid();
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if (result) return result;
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try {
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fs.mkdirSync(path, recursive);
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return null;
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}
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catch (e) {
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console.warn(e.message);
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return new Error(e.message);
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}
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}
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function exists (filePath, callback) {
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var result = checkFsValid();
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if (result) return result;
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fs.access({
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path: filePath,
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success: callback ? function () {
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callback(true);
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} : undefined,
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fail: callback ? function () {
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callback(false);
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} : undefined,
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});
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}
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window.wxFsUtils = module.exports = {fs, checkFsValid, readDir, exists, copyFile, downloadFile, readText, readArrayBuffer, saveFile, writeFile, deleteFile, writeFileSync, readJsonSync, makeDirSync};
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