rapido/lib/util/spawnGit.js

Rápido is an extensible command line interface that enables rapid development for any technology stack. Rápido is written in JavaScript and is built on top of Node.js and npm.

var spawn = require('child_process').spawn;
var split = require('split');
var raptorPromises = require('raptor-promises');

module.exports = function gitCommand(args, options) {
    var rapido = require('../').instance;
    var logger;
    var expectError = false;
    options = options || {};

    if (options.debug) {
        logger = options;
        options = {};
    }
    else {
        logger = options.logger;
        expectError = options.expectError === true;
    }

    logger = logger || rapido.log;
    var rootDir = options.cwd || options.rootDir || require('./project-manager').rootDir;

    var deferred = raptorPromises.defer();
    var hasError = false;
    var stdout = '';

    var command = 'git ' + args.join(' ');
    logger.info('git', 'Executing "' + command + '"...');

    var git = spawn('git', args, {cwd: rootDir});

    git.stdout
        .pipe(split())
        .on('data', function (data) {
            var trimmed = data.toString().trim();
            if (!trimmed) {
                return;
            }
            stdout += data.toString() + '\n';
            rapido.log.info('git', data);
        });

    git.stderr
        .pipe(split())
        .on('data', function (data) {
            data = data.toString().trim();
            if (!data) {
                return;
            }

            rapido.log.info('git', data.toString().trim());
        });

    git.on('close', function (code) {
        if (hasError) {
            logger.error('git', '"' + command + '" completed with errors');
            deferred.reject('"' + command + '" failed with errors');
        }
        else if (code !== 0) {

            if (expectError) {
                logger.info('git', '"' + command + '" exited with error code ' + code);
            }
            else {
                logger.error('git', '"' + command + '" exited with error code ' + code);
            }
            
            deferred.reject('"' + command + '" failed with code ' + code);
        }
        else {
            logger.info('git', '"' + command + '" completed successfully');
            deferred.resolve({
                stdout: stdout
            });
        }
    });

    return deferred.promise;
};