code-challenge-7geese/gulpfile.js

This is a revised solution for the 7Geese JavaScript Challenge.

/*global require, pipe*/
'use strict';
var assign = require('lodash.assign'),
    buffer = require('vinyl-buffer'),
    browserify = require('browserify'),
    filesize = require('gulp-filesize'),
    gulp = require('gulp'),
    gutil = require('gulp-util'),
    rename = require('gulp-rename'),
    source = require('vinyl-source-stream'),
    sourcemaps = require('gulp-sourcemaps'),
    uglify = require('gulp-uglify'),
    watchify = require('watchify');

var customOpts = {
        entries: ['./src/main.js'],
        standalone: 'sGeese',
        debug: true
    },
    opts = assign({}, watchify.args, customOpts),
    b = watchify(browserify(opts));

    gulp.task('js', bundle); // so you can run `gulp js` to build the file
    b.on('update', bundle); // on any dep update, runs the bundler
    b.on('log', gutil.log); // output build logs to terminal

    function bundle() {
        return b.bundle()
            // log errors if they happen
            .on('error', gutil.log.bind(gutil, 'Browserify Error'))
            .pipe(source('sGeese.js'))
            // optional, remove if you don't need to buffer file contents
            .pipe(buffer())
            // optional, remove if you dont want sourcemaps
            .pipe(sourcemaps.init({loadMaps: true})) // loads map from browserify file
            // Add transformation tasks to the pipeline here.
            .pipe(sourcemaps.write('./')) // writes .map file
            .pipe(gulp.dest('./www/js'));
    }

    gulp.task('min', function() {
        return gulp.src('./www/js/sGeese.js')
            .pipe(filesize())
            .pipe(uglify())
            .pipe(rename('sGeese.min.js'))
                .pipe(gulp.dest('./www/js'))
                .pipe(filesize())
                .on('error', gutil.log);
    });