old_contents: 'use strict';
  
  var gulp = require('gulp');
  var pkg = require('./package.json');
  var minifyCSS = require('gulp-minify-css');
  var comment = '\/*\r\n* Wing ' + pkg.version + '\r\n* Copyright 2016, Kabir Shah\r\n* http:\/\/kingpixil.github.io\/wing\/\r\n* Free to use under the MIT license.\r\n* http:\/\/www.opensource.org\/licenses\/mit-license.php\r\n*\/\r\n';
  var $ = require('gulp-load-plugins')();
  
  gulp.task('build', function () {
    return gulp.src(['./src/top.css', './src/base.css', './src/typography.css', './src/grid.css', './src/buttons.css', './src/forms.css', './src/links.css', './src/lists.css', './src/util.css', './src/misc.css'])
      .pipe($.concat('wing.css'))
      .pipe($.header(comment + '\n'))
      .pipe($.size())
      .pipe(gulp.dest('./dist/'));
  });
  
  gulp.task('minify', ['build'], function() {
    return gulp.src(['./dist/wing.css'])
      .pipe(minifyCSS())
      .pipe($.header(comment))
      .pipe($.size())
      .pipe($.concat('wing.min.css'))
      .pipe(gulp.dest('./dist/'));
  });
  
  gulp.task('build-gh', function() {
    var content = gulp.src(['./src/top.css', './src/base.css', './src/typography.css', './src/grid.css', './src/buttons.css', './src/forms.css', './src/links.css', './src/lists.css', './src/util.css', './src/misc.css'])
    $.git.checkout('gh-pages', function() {
      return content
        .pipe($.concat('wing.css'))
        .pipe($.header(comment + '\n'))
        .pipe($.size())
        .pipe(gulp.dest('./dist/'));
    });
  });
  
  gulp.task('minify-gh', function() {
    var content = gulp.src(['./dist/wing.css']);
    $.git.checkout('gh-pages', function() {
      return content
        .pipe(minifyCSS())
        .pipe($.header(comment))
        .pipe($.size())
        .pipe($.concat('wing.min.css'))
        .pipe(gulp.dest('./dist/'));
    });
  });
  
  gulp.task('default', ['build', 'minify']);
  
  gulp.task('watch', function() {
    gulp.watch(['src/*.css'], ['default']);
  });
  
new_contents: 'use strict';
  
  var gulp = require('gulp');
  var pkg = require('./package.json');
  var minifyCSS = require('gulp-minify-css');
  var comment = '\/*\r\n* Wing ' + pkg.version + '\r\n* Copyright 2016, Kabir Shah\r\n* http:\/\/kingpixil.github.io\/wing\/\r\n* Free to use under the MIT license.\r\n* http:\/\/www.opensource.org\/licenses\/mit-license.php\r\n*\/\r\n';
  var $ = require('gulp-load-plugins')();
  
  gulp.task('build', function () {
    return gulp.src(['./src/top.css', './src/base.css', './src/typography.css', './src/grid.css', './src/buttons.css', './src/forms.css', './src/links.css', './src/lists.css', './src/util.css', './src/misc.css'])
      .pipe($.concat('wing.css'))
      .pipe($.header(comment + '\n'))
      .pipe($.size())
      .pipe(gulp.dest('./dist/'));
  });
  
  gulp.task('minify', ['build'], function() {
    return gulp.src(['./dist/wing.css'])
      .pipe(minifyCSS())
      .pipe($.header(comment))
      .pipe($.size())
      .pipe($.concat('wing.min.css'))
      .pipe(gulp.dest('./dist/'));
  });
  
  
  gulp.task('watch', function() {
    gulp.watch(['src/*.css'], ['default']);
  });
  
  
  gulp.task('default', ['build', 'minify']);
  
subject: remove old gulp commands