build-scripts/gulpfile-compress.js

   1 'use strict';
   2
   3 var gulp = require('gulp');
   4 var gzip = require('gulp-gzip');
   5 var tar = require('gulp-tar');
   6 var restoreTimestamps = require('./gulp-restore-timestamps');
   7
   8 gulp.task('compress:assets:files:gzip', function() {
   9   return gulp
  10     .src(['output/assets/**/*.{css,js,ttf,svg,eot}', '!**/*.map'], {
  11       stat: true,
  12       base: 'output/assets/'
  13     })
  14     .pipe(gzip({ append: true, gzipOptions: { level: 9 } }))
  15     .pipe(gulp.dest('output/assets/'))
  16     .pipe(restoreTimestamps());
  17 });
  18
  19 // Brotli compression for text files
  20 gulp.task('compress:assets:files:brotli:text', function() {
  21   if (!process.env.ENABLE_BROTLI_COMPRESSION) return;
  22
  23   var brotli = require('gulp-brotli');
  24   return gulp
  25     .src(['output/assets/**/*.{css,svg,js}', '!**/*.map'], { stat: true, base: 'output/assets/' })
  26     .pipe(
  27       brotli.compress({
  28         mode: 1, // 1 = TEXT
  29         extension: 'br',
  30         quality: 11
  31       })
  32     )
  33     .pipe(gulp.dest('output/assets/'))
  34     .pipe(restoreTimestamps());
  35 });
  36
  37 // Brotli compression for non-text files
  38 gulp.task('compress:assets:files:brotli:generic', function() {
  39   if (!process.env.ENABLE_BROTLI_COMPRESSION) return;
  40
  41   var brotli = require('gulp-brotli');
  42   return gulp
  43     .src(['output/assets/**/*.{ttf,eot}', '!**/*.map'], { stat: true, base: 'output/assets/' })
  44     .pipe(
  45       brotli.compress({
  46         mode: 0, // 0 = GENERIC
  47         extension: 'br',
  48         quality: 11
  49       })
  50     )
  51     .pipe(gulp.dest('output/assets/'))
  52     .pipe(restoreTimestamps());
  53 });
  54
  55 gulp.task('compress:assets:files:brotli', [
  56   'compress:assets:files:brotli:generic',
  57   'compress:assets:files:brotli:text'
  58 ]);
  59
  60 gulp.task('compress:assets:files', ['compress:assets:files:brotli', 'compress:assets:files:gzip']);
  61
  62 gulp.task('compress:assets:tarball', ['compress:assets:files'], function() {
  63   return gulp
  64     .src(['output/assets/**', '!**/*.map'], { stat: true })
  65     .pipe(tar('assets.tar'))
  66     .pipe(gzip({ append: true, gzipOptions: { level: 9 } }))
  67     .pipe(gulp.dest('output'));
  68 });
  69
  70 gulp.task('compress:post-package', ['compress:assets:tarball']);