build.js
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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The SFC licenses this file
// to you 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.
'use strict';
const spawn = require('child_process').spawn,
fs = require('fs'),
path = require('path');
const isDevMode = require('../devmode'),
promise = require('../promise');
var projectRoot = path.normalize(path.join(__dirname, '../../../../..'));
function checkIsDevMode() {
if (!isDevMode) {
throw Error('Cannot execute build; not running in dev mode');
}
}
/**
* Targets that have been previously built.
* @type {!Object}
*/
var builtTargets = {};
/**
* @param {!Array.<string>} targets The targets to build.
* @throws {Error} If not running in dev mode.
* @constructor
*/
var Build = function(targets) {
checkIsDevMode();
this.targets_ = targets;
};
/** @private {boolean} */
Build.prototype.cacheResults_ = false;
/**
* Configures this build to only execute if it has not previously been
* run during the life of the current process.
* @return {!Build} A self reference.
*/
Build.prototype.onlyOnce = function() {
this.cacheResults_ = true;
return this;
};
/**
* Executes the build.
* @return {!webdriver.promise.Promise} A promise that will be resolved when
* the build has completed.
* @throws {Error} If no targets were specified.
*/
Build.prototype.go = function() {
var targets = this.targets_;
if (!targets.length) {
throw Error('No targets specified');
}
// Filter out cached results.
if (this.cacheResults_) {
targets = targets.filter(function(target) {
return !builtTargets.hasOwnProperty(target);
});
if (!targets.length) {
return promise.fulfilled();
}
}
console.log('\nBuilding', targets.join(' '), '...');
var cmd, args = targets;
if (process.platform === 'win32') {
cmd = 'cmd.exe';
args.unshift('/c', path.join(projectRoot, 'go.bat'));
} else {
cmd = path.join(projectRoot, 'go');
}
var result = promise.defer();
spawn(cmd, args, {
cwd: projectRoot,
env: process.env,
stdio: ['ignore', process.stdout, process.stderr]
}).on('exit', function(code, signal) {
if (code === 0) {
targets.forEach(function(target) {
builtTargets[target] = 1;
});
return result.fulfill();
}
var msg = 'Unable to build artifacts';
if (code) { // May be null.
msg += '; code=' + code;
}
if (signal) {
msg += '; signal=' + signal;
}
result.reject(Error(msg));
});
return result.promise;
};
// PUBLIC API
/**
* Creates a build of the listed targets.
* @param {...string} var_args The targets to build.
* @return {!Build} The new build.
* @throws {Error} If not running in dev mode.
*/
exports.of = function(var_args) {
var targets = Array.prototype.slice.call(arguments, 0);
return new Build(targets);
};
/**
* @return {string} Absolute path of the project's root directory.
* @throws {Error} If not running in dev mode.
*/
exports.projectRoot = function() {
checkIsDevMode();
return projectRoot;
};