| #!/usr/bin/env node |
| |
| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF 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. |
| */ |
| |
| var child_process = require('child_process'), |
| Q = require('q'); |
| |
| // Takes a command and optional current working directory. |
| // Returns a promise that either resolves with the stdout, or |
| // rejects with an error message and the stderr. |
| module.exports = function(cmd, opt_cwd) { |
| var d = Q.defer(); |
| console.log('exec: ' + cmd); |
| try { |
| child_process.exec(cmd, {cwd: opt_cwd, maxBuffer: 1024000}, function(err, stdout, stderr) { |
| if (err) d.reject('Error executing "' + cmd + '": ' + stderr); |
| else d.resolve(stdout); |
| }); |
| } catch(e) { |
| console.error('error caught: ' + e); |
| d.reject(e); |
| } |
| return d.promise; |
| } |
| |