refactoring (gulp and libraries) + some fixing

sites/all/themes/custom/edlptheme/gulpfile.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var gulp = require('gulp');
-var util = require('gulp-util');
+var gulpif = require('gulp-if');
 var sass = require('gulp-sass');
 var watch = require('gulp-watch');
 var autoprefixer = require('gulp-autoprefixer');
@@ -11,7 +11,6 @@ var rename = require('gulp-rename');
 var mainBowerFiles = require('main-bower-files');
 // var jsonToSass = require('gulp-json-to-sass');
 // var concat = require('gulp-concat');
-// var through = require('through2');
 var svgmin = require('gulp-svgmin');
 // var fs = require('fs');
 // var json2js = require('gulp-json2js');
@@ -19,20 +18,20 @@ var svgmin = require('gulp-svgmin');
 
 // var shared_variables = JSON.parse(fs.readFileSync('./assets/json/shared_variables.json'));
 
+// to get minified assets run `gulp --env=prod`
+var argv = require('minimist')(process.argv.slice(2));
+console.dir(argv);
+var prod = argv.env == 'prod' ? true : false;
+
 function handleError(err) {
   console.log(err.toString());
 }
 
-var config = {
-  assetsDir : './assets',
-  production: !!util.env.production
-}
-
 gulp.task('scripts', function () {
   gulp.src(['./assets/scripts/main.js', './assets/scripts/history.js']) // './assets/scripts/shared_variables.js',
     // .pipe(concat('main.js'))
-    // .pipe(config.production ? jsmin() : util.noop())
-    .pipe(jsmin())
+    .pipe(gulpif(prod, jsmin()))
+    // .pipe(jsmin())
     .pipe(rename({suffix: '.min'}))
     .pipe(gulp.dest('./assets/dist/scripts/'));
 });
@@ -44,8 +43,9 @@ gulp.task('styles', function () {
         browsers: ['last 2 versions'],
         cascade: false
     })).on('error', handleError)
-    // .pipe(config.production ? cssmin() : util.noop())
-    .pipe(cssmin())
+    // .pipe(prod ? cssmin() : util.noop())
+    .pipe(gulpif(prod, cssmin()))
+    // .pipe(cssmin())
     .pipe(rename({suffix: '.min'}))
     .pipe(gulp.dest('./assets/dist/styles/'));
 });