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DEPRECATION NOTICE

I'll archive the repo by the end of August 2021.

The main reason is Hugo pipes are built-in and pretty much cover what Hugulp does.

I think the only part missing is image optimization, but I think you can build a pipe to do it.

The other reason is it badly needs an update to gulp 4 and although it doesn't seem like that hard a task, I don't have the appetite to do it.

hugulp 2

v2 Breaking changes

If you're using hugulp v1, please take note of the following changes:

• hugo is no longer invoked by hugulp

  use hugo as per its docs, then invoke hugulp build

• put your assets in the static folder

  for example, static/styles, static/images, static/scripts

• themes are supported out of the box

Note: If you need sass/less/js pre-processing, read v2 docs below

Description

hugulp is a tool to optimize the assets of a Hugo website.

The main idea is to recreate the famous Ruby on Rails Asset Pipeline, which minifies, concatenates and fingerprints the assets used in your website.

This leads to less and smaller network requests to your page, improving overall user experience.

Read this blog post and this article for additional context.

Note: These articles refer to v1

It's internally driven by Gulp.

This project Includes the following tools, tasks and workflows:

• sass (super fast libsass)
• less
• autoprefixer
• clean-css
• jshint
• uglify
• imagemin (only changed images)
• gulp-rev, gulp-rev-replace (fingerprinting)
• htmlmin
• watch

Installation

Node needs to be installed in your system.

Then just

$ npm install -g hugulp

Or you can build and run using docker:

# Default docker setup:
$ ./scripts/create-docker-machine-and-run-it

# -- OR --

# Run with custom machine name, specific hugo version, specific node version and run docker in detached mode:
$ ./scripts/create-docker-machine-and-run-it -a app-devel -g 0.20.6 -n 6.10.0 -d

Note: You only run the ./scripts/create-docker-machine-and-run-it if you want to create a new docker machine. Once the docker machine is created, you have to use docker commands to manage it. Please be familiar with docker in this regard.

Getting Started

The most common usage scenario would be:

$ hugo new site yoursite
$ cd yoursite
$ hugulp init
# create content
# add images (static/images), css (static/styles) and javascript (static/scripts)
$ hugo server -D # for development
# development is done, ready to publish
$ rm -rf public # clean up public folder, it will be re-generated by hugo
$ hugo # for release/production/deployment
$ hugulp build # optimize the site by running the asset pipeline

Another scenario would be to include sass/less pre-processing:

$ hugo new site yoursite
$ cd yoursite
$ hugulp init
# create content
# add images (static/images), and javascript (static/scripts)
# add sass/less (assets/styles)
$ hugo server -D # for development
$ hugulp watch # to convert sass/less (assets/styles) into css (static/styles)
# development is done, ready to publish
$ rm -rf public # clean up public folder, it will be re-generated by hugo
$ hugo # for release/production/deployment
$ hugulp build # optimize the site by running the asset pipeline

In both cases, you could chain the last 3 commands:

$ rm -rf public && hugo && hugulp build

hugulp requires a configuration file (.hugulprc), which is created by the hugulp init command (you can create the file manually if you want).

This is the default .hugulprc:

{
  "version": 2,
  "pipeline": ["images", "styles", "scripts", "fingerprint", "html"],
  "path": {
    "styles": "styles",
    "images": "images",
    "scripts": "scripts"
  },
  "watch": {
    "source": "assets",
    "target": "static"
  },
  "build": {
    "source": "public",
    "target": "public"
  },
  "autoprefixer": {
    "browsers": ["last 2 versions"]
  },
  "cleancss": {
    "advanced": false
  },
  "htmlmin": {
    "collapseWhitespace": true
  },
  "gifsicle": { "interlaced": true },
  "jpegtran": { "progressive": true },
  "optipng": { "optimizationLevel": 5 },
  "svgo": {
    "plugins": [{ "removeViewBox": true }, { "cleanupIDs": false }]
  }
}

You can easily customize hugulp's behavior, by modifying this configuration file, as described below.

Available Commands

hugulp watch

hugulp will assist you if you're using sass/less (and javascript), which require pre-processing.

It will watch for changes to styles or script files, process them and write them to hugo's static folder, according to the following table

Note: It searches the folders recursively

The table above applies to hugulp run with a default .hugulprc.

You can customize the folder names: resources instead of assets, js instead of scripts and so on.

This is described in the .hugulprc section below.

hugulp build

It optimizes the site that hugo built, by running the asset pipeline as defined in .hugulprc (field pipeline).

Additionally, files are not watched for changes

hugulp version

Display installed version.

hugulp init

Create a default .hugulprc.

Configuration

By editing the .hugulprc configuration file, you can customize almost anything about hugulp.

Description of each field follows:

pipeline

Defines which tasks of the asset pipeline will be executed (hugulp build command)

Type: array
Default:

"pipeline": ["images", "styles", "scripts", "fingerprint", "html"]

Let's say you don't want to fingerprint the assets. Just set pipeline to

"pipeline": ["images", "styles", "scripts", "html"]

By removing the fingerprint task, it will not be executed.

Note that tasks are executed sequentially.

path

Defines the name of the folders where your assets are located/will be transferred to.

Type: object
Default:

"path": {
  "styles": "styles",
  "images": "images",
  "scripts": "scripts"
}

So if you prefer your styles folder to be called css, and scripts to be called js, you would change it to:

"path": {
  "styles": "css",
  "images": "images",
  "scripts": "js"
}

watch

Define which folders to watch for changes, for the hugulp watch command.

Type: object
Default:

"watch": {
  "source": "assets",
  "target": "static"
}

This field works together with the path field.

With a default .hugulprc, it will watch assets/styles and assets/scripts (recursively).

If you customized path as per above, it will watch assets/css and assets/js.

If you additionally want the assets folder to be called resources, change source to resources

"watch": {
  "source": "resources",
  "target": "static"
}

then it will watch resources/css and resources/js

Finally, the changes will be written to the well-known hugo static folder.

With a default .hugulprc, files will be written to static/styles and static/scripts.

build

Defines the folders referenced during the hugulp build command

Type: object
Default:

"build": {
  "source": "public",
  "target": "public"
}

This should generally be left unchanged.

hugo will output to the public folder by default, so hugulp build will process the files in-place.

autoprefixer

Options for autoprefixer. Check gulp-autoprefixer for documentation.

Task: styles

Type: object
Default:

"autoprefixer": {
  "browsers": ["last 2 versions"]
}

cleancss

Options for clean-css. Check gulp-clean-css for documentation.

Task: styles

Default:

"cleancss": {
  "advanced": false
}

htmlmin

Options for htmlmin. Check gulp-htmlmin for documentation.

Task: html

Default:

"htmlmin": {
  "collapsedWhitespace": true
}

gifsicle

Options for gifsicle. Check gulp-imagemin for documentation.

Task: images

Default:

"gifsicle": {
  "interlaced": true
}

jpegtran

Options for jpegtran. Check gulp-imagemin for documentation.

Task: images

Default:

"jpegtran": {
  "progressive": true
}

optipng

Options for optipng. Check gulp-imagemin for documentation.

Task: images

Default:

"optipng": {
  "optimizationLevel": 5
}

svgo

Options for svgo. Check gulp-imagemin for documentation.

Task: images

Default:

"svgo": {
  "plugins": [{ "removeViewBox": true }, { "cleanupIDs": false }]
}

How to update

Whenever a new hugulp version becomes available, you can update it by running

$ npm install -g hugulp

PR

Pull Requests are welcome