jszip-helper.jsā¢4.59 kB
"use strict";
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.compressFolder = void 0;
const fs_1 = __importStar(require("fs"));
const path_1 = __importDefault(require("path"));
const jszip_1 = __importDefault(require("jszip"));
// Thanks to https://github.com/DesignByOnyx
// see https://github.com/Stuk/jszip/issues/386 for more info
/**
* Returns a flat list of all files and subfolders for a directory (recursively).
* @param {string} dir
* @returns {Promise<string[]>}
*/
const getFilePathsRecursively = (dir) => __awaiter(void 0, void 0, void 0, function* () {
// returns a flat array of absolute paths of all files recursively contained in the dir
const list = yield fs_1.promises.readdir(dir);
const statPromises = list.map((file) => __awaiter(void 0, void 0, void 0, function* () {
const fullPath = path_1.default.resolve(dir, file);
const stat = yield fs_1.promises.stat(fullPath);
if (stat && stat.isDirectory()) {
return getFilePathsRecursively(fullPath);
}
return fullPath;
}));
return (yield Promise.all(statPromises)).flat(Infinity);
});
/**
* Creates an in-memory zip stream from a folder in the file system
* @param {string} dir
* @returns {JSZip}
*/
const createZipFromFolder = (dir) => __awaiter(void 0, void 0, void 0, function* () {
const absRoot = path_1.default.resolve(dir);
const filePaths = yield getFilePathsRecursively(dir);
return filePaths.reduce((z, filePath) => {
const relative = filePath.replace(absRoot, '');
// create folder trees manually :(
const zipFolder = path_1.default
.dirname(relative)
.split(path_1.default.sep)
.reduce((zf, dirName) => zf.folder(dirName), z);
zipFolder.file(path_1.default.basename(filePath), fs_1.default.createReadStream(filePath));
return z;
}, new jszip_1.default());
});
/**
* Compresses a folder to the specified zip file.
* @param {string} srcDir
* @param {string} destFile
*/
const compressFolder = (srcDir, destFile, options) => __awaiter(void 0, void 0, void 0, function* () {
const start = Date.now();
try {
const zip = yield createZipFromFolder(srcDir);
zip
.generateNodeStream(Object.assign({ streamFiles: true }, options))
.pipe(fs_1.default.createWriteStream(destFile))
.on('error', (err) => console.error('Error writing file', err.stack))
.on('finish', () => console.log('Zip written successfully:', Date.now() - start, 'ms'));
}
catch (ex) {
console.error('Error creating zip', ex);
}
});
exports.compressFolder = compressFolder;
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