gulpfile.js

var gulp = require('gulp'),
    mocha = require('gulp-mocha'),
    minimist = require('minimist'),
    cp = require('child_process'),
    chalk = require('chalk'),
    fs = require('fs'),
    pkg = require('./package.json'),
    knownOptions = {
        string: 'type',
        default: {
            type: 'patch'
        }
    },
    incrementVersion = function(version, type) {
        var versionArr = version.split('.');

        if (type === 'major') {
            versionArr[0] = parseInt(versionArr[0], 10) + 1;
        } else if (type === 'minor') {
            versionArr[1] = parseInt(versionArr[1], 10) + 1;
        } else {
            versionArr[2] = parseInt(versionArr[2], 10) + 1;
        }

        return versionArr.join('.');
    },
    options = minimist(process.argv.slice(2), knownOptions);

gulp.task('default', function() {

});

gulp.task('test', function() {
    return gulp.src(['**/**_test.js', '!node_modules/**/*'], {
        read: false
    })
        .pipe(mocha({
        reporter: 'spec'
    }));
});

gulp.task('dev', function() {
    gulp.watch(['**/*_test.js', '**/*.js', '!node_modules/**/*'], ['test']);
});

gulp.task('release', ['test'], function() {
    var newVersion = incrementVersion(pkg.version, options.type);
    //this is the task to automat most of the release stuff... because it is lame and boring
    console.log('\n\nPreparing for a ' + chalk.bgGreen.bold(options.type) + ' release...\n\n');


    cp.exec('git log `git describe --tags --abbrev=0`..HEAD --pretty=format:"  - %s"', function(err, stdout, stderr) {
        var history;

        try {
            history = fs.readFileSync('./history.md');
        } catch(e) {
            history = '';
        }

        console.log('Updating the history.md file');

        fs.writeFile('./history.md', '### - ' + newVersion + ' *' + new Date().toLocaleString() + '*\n\n' + stdout + '\n\n\n' + history);

        cp.exec('git log --all --format="%aN <%aE>" | sort -u', function(err, stdout, stderr) {
            //write out the Authors file with all contributors
            console.log('Updating the AUTHORS file');

            fs.writeFile('./AUTHORS', stdout);

            cp.exec('git add .', function() {
                cp.exec('git commit -m "preparing for release of v' + newVersion + '"', function() {
                    console.log('commited the automated updates');
                    //run npm version
                    cp.exec('npm version ' + options.type, function() {
                        console.log('npm version to rev for release');
                        cp.exec('npm publish', function() {
                            console.log('pushing to origin');

                            cp.exec('git push origin master', function() {});
                            cp.exec('git push origin v' + newVersion, function(err) {
                                if (err) {
                                    console.log(err);
                                }
                                console.log(chalk.green('DONE! Congrats on the Release!'));
                            });
                        });
                    });

                });
            });
        });
    });
});