old_contents: 'use strict';
  
  const { src, dest, series, parallel, watch } = require('gulp');
  const cleanCSS = require('gulp-clean-css');
  const concat = require('gulp-concat');
  const del = require('del');
  const imagemin = require('gulp-imagemin');
  const rename = require('gulp-rename');
  const sass = require("gulp-sass");
  sass.compiler = require('node-sass');
  const uglify = require('gulp-uglify');
  const zip = require('gulp-zip');
  
  function css() {
    var sassOptions = {
      outputStyle: "expanded",
      sourcemap: 'none'
    }
  
    return src('assets/css/**/*.scss')
      .pipe(sass(sassOptions))
      .pipe(dest("assets/built/"))
      .pipe(cleanCSS())
      .pipe(dest("assets/built/"))
      .pipe(src('node_modules/prismjs/themes/prism-tomorrow.css'))
      .pipe(dest("assets/built/"))
  }
  
  function javascript() {
    return src([
      'node_modules/prismjs/prism.js',
      'node_modules/prismjs/components/prism-swift.js',
      'node_modules/prismjs/components/prism-bash.js',
      'node_modules/prismjs/components/prism-json.js',
      ])
      .pipe(concat('prism.js'))
      .pipe(uglify())
      .pipe(rename({ suffix: '.min' }))
      .pipe(dest("./assets/built/"));
  }
  
  function images() {
    var options = {
      optimizationLevel: 7,
      progressive: true,
      interlaced: true
    }
  
    return src('./assets/images/**/*')
      .pipe(imagemin(options))
      .pipe(dest("./assets/built/"))
  }
  
  function bundle() {
    var themeName = require('./package.json').name;
    var filename = themeName + '.zip';
  
    return src([
        '**',
        '!node_modules', '!node_modules/**',
        '!production¸', '!production¸/**'
      ])
      .pipe(zip(filename))
      .pipe(dest('./production/'))
  }
  
  const watchCSS = () => watch('assets/css/**', css);
  const watchImages = () => watch('assets/images/**', images);
  const watcher = parallel(watchCSS, watchImages);
  
  const build = series(css, javascript, images)
  const dev = series(build, watcher)
  const production = series(build, bundle)
  
  exports.default = dev
  exports.production = production
  
new_contents: 'use strict';
  
  const { src, dest, series, parallel, watch } = require('gulp');
  const cleanCSS = require('gulp-clean-css');
  const concat = require('gulp-concat');
  const del = require('del');
  const imagemin = require('gulp-imagemin');
  const rename = require('gulp-rename');
  const sass = require("gulp-sass");
  sass.compiler = require('node-sass');
  const uglify = require('gulp-uglify');
  const zip = require('gulp-zip');
  
  function css() {
    var sassOptions = {
      outputStyle: "expanded",
      sourcemap: 'none'
    }
  
    return src('assets/css/**/*.scss')
      .pipe(sass(sassOptions))
      .pipe(dest("assets/built/"))
      .pipe(cleanCSS())
      .pipe(dest("assets/built/"))
      .pipe(src('node_modules/prismjs/themes/prism-tomorrow.css'))
      .pipe(dest("assets/built/"))
  }
  
  function javascript() {
    return src([
      'node_modules/prismjs/prism.js',
      'node_modules/prismjs/components/prism-swift.js',
      'node_modules/prismjs/components/prism-bash.js',
      'node_modules/prismjs/components/prism-json.js',
      ])
      .pipe(concat('prism.js'))
      .pipe(uglify())
      .pipe(rename({ suffix: '.min' }))
      .pipe(dest("./assets/built/"));
  }
  
  function images() {
    var options = {
      optimizationLevel: 7,
      progressive: true,
      interlaced: true
    }
  
    return src('./assets/images/**/*')
      .pipe(imagemin(options))
      .pipe(dest("./assets/built/"))
  }
  
  function bundle() {
    var themeName = require('./package.json').name;
    var filename = themeName + '.zip';
  
    return src([
        '**',
        '!node_modules', '!node_modules/**',
        '!production¸', '!production/**'
      ])
      .pipe(zip(filename))
      .pipe(dest('./production/'))
  }
  
  const watchCSS = () => watch('assets/css/**', css);
  const watchImages = () => watch('assets/images/**', images);
  const watcher = parallel(watchCSS, watchImages);
  
  const build = series(css, javascript, images)
  const dev = series(build, watcher)
  const production = series(build, bundle)
  
  exports.default = dev
  exports.production = production
  
subject: remove errant char from Gulpfile