#!/usr/bin/env node

// Copyright 2016, Google, Inc.

// 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.

var async = require('async');

var path = require('path');

require('shelljs/global');

// Install NPM dependencies, in up to 5 directories at a time

var queue = async.queue(function (directory, callback) {

installForDirectory(directory, callback);

}, 5);

queueDirectories('appengine');

queue.push('bigquery');

queue.push('computeengine');

queue.push('datastore');

queue.push('debugger');

queueDirectories('functions');

queue.push('functions/ocr/app');

queue.push('language');

queue.push('logging');

queue.push('monitoring');

queue.push('prediction');

queue.push('pubsub');

queue.push('speech');

queue.push('storage');

queue.push('trace');

queue.push('translate');

queue.push('vision');

/**

* Install NPM dependencies within a single directory.

*

* @param {string} directory The name of the directory in which to install dependencies.

* @param {function} callback The callback function.

*/

function installForDirectory(directory, callback) {

console.log(directory + '...installing dependencies');

exec('npm install', {

async: true,

cwd: path.join(__dirname, '../', directory)

}, function (err) {

console.log(directory + '...done');

callback(err);

});

}

/**

* Recursively install NPM dependencies within a single directory.

*

* @param {string} directory The name of the directory in which to recursively install dependencies.

*/

function queueDirectories(directory) {

// Move into the directory

cd(directory);

// List the files in the directory

ls('-dl', '*')

.filter(function (file) {

// Find the directories within the directory

return file.isDirectory() && file.name !== 'test' && file.name !== 'system-test';

})

.forEach(function (file) {

queue.push(directory + '/' + file.name);

});

// Move out of the directory

cd('..');

}