gulpfile.js

var fs = require('fs');
var json = JSON.parse(fs.readFileSync('./package.json'));
var version = json.version;

var gulp = require('gulp');
var rename = require('gulp-rename');
var jshint = require('gulp-jshint');
var uglify = require('gulp-uglify');
var zip = require('gulp-zip');

gulp.task('default', ['js', 'package', 'update-demo']);

gulp.task('js', ['pop-under']);

gulp.task('pop-under', function(done) {
    gulp.src('./src/pop-under.js')
            .pipe(jshint())
            .pipe(jshint.reporter('jshint-stylish'))
            .pipe(jshint.reporter('fail'))
            .pipe(rename({basename: 'show-promote', extname: '.js'}))
            .pipe(gulp.dest('./dist'))
            .pipe(uglify({preserveComments: 'none', mangle:false}))
            .pipe(rename({extname: '.min.js'}))
            .pipe(gulp.dest('./dist'))
            .on('end', done);
});

gulp.task('package', function(done) {
    gulp.src('./dist/*')
            .pipe(zip('popunder-' + version + '.zip'))
            .pipe(gulp.dest('./docs/download'))
            .on('end', done);
});

gulp.task('update-demo', function(done) {
    gulp.src('./dist/show-promote.min.js')
            .pipe(gulp.dest('./docs/js'))
            .on('end', done);
});