roc/lib/commands/helpers/unzip.js

Build modern web applications easily

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.default = unzip;

var _temp = require('temp');

var _temp2 = _interopRequireDefault(_temp);

var _fs = require('fs');

var _fs2 = _interopRequireDefault(_fs);

var _unzip = require('unzip');

var _unzip2 = _interopRequireDefault(_unzip);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// Automatically track and cleanup files at exit
_temp2.default.track();

/**
 * Unpacks the given zip file.
 *
 * @param {string} zipFile - The full path to a local zip file.
 *
 * @returns {Promise} The path to the temporary directory where the unzipped files are located.
 */
function unzip(zipFile) {
    if (!zipFile) {
        throw new Error('No zip file was given.');
    }

    return new Promise((resolve, reject) => {
        _temp2.default.mkdir('roc', (err, dirPath) => {
            if (err) {
                return reject(err);
            }

            _fs2.default.createReadStream(zipFile).pipe(_unzip2.default.Extract({ path: dirPath })) // eslint-disable-line new-cap
            .on('error', reject).on('close', () => {
                // The template zip is assumed to have a root dir
                try {
                    _fs2.default.readdirSync(dirPath).forEach(file => {
                        const rootDir = _path2.default.join(dirPath, file);
                        if (_fs2.default.statSync(rootDir).isDirectory()) {
                            return resolve(rootDir);
                        }
                    });
                } catch (error) {
                    return reject(error);
                }
                return resolve(dirPath);
            });
        });
    });
}
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