Minify Hugo Generated HTML

gulpfile.babel.js

import gulp from 'gulp'
import htmlmin from 'gulp-htmlmin'
import runSequence from 'run-sequence'
import shell from 'gulp-shell'

gulp.task('hugo-build', shell.task(['hugo']))

gulp.task('minify-html', () => {
  return gulp.src('public/**/*.html')
    .pipe(htmlmin({
      collapseWhitespace: true,
      minifyCSS: true,
      minifyJS: true,
      removeComments: true,
      useShortDoctype: true,
    }))
    .pipe(gulp.dest('./public'))
})

gulp.task('build', ['hugo-build'], (callback) => {
  runSequence('minify-html', callback)
})

package.json

{
  "private": true,
  "scripts": {
    "build": "gulp build"
  },
  "devDependencies": {
    "babel-preset-es2015": "^6.5.0",
    "babel-register": "^6.5.2",
    "gulp": "^3.9.1",
    "gulp-cli": "^1.2.1",
    "gulp-htmlmin": "^1.3.0",
    "gulp-shell": "^0.5.2",
    "run-sequence": "^1.1.5"
  },
  "babel": {
    "presets": [
      "es2015"
    ]
  }
}