gojekyll

Gojekyll

This project was created by Oliver Steele (@osteele), and is currently maintained by Daniil Gentili (@danog).

Gojekyll is a partially-compatible clone of the Jekyll static site generator, written in the Go programming language. It provides build and serve commands, with directory watch and live reload.

• Usage
• Installation
  • Docker
  • Binary Downloads
  • From Source
• [Optional] Install command-line autocompletion
• Status
  • Current Limitations
  • Other Differences
  • Feature Checklist
• Troubleshooting
• Contributors
• Attribution
• Related
• License

Usage

gojekyll build       # builds the site in the current directory into _site
gojekyll serve       # serve the app at http://localhost:4000; reload on changes
gojekyll help
gojekyll help build

Installation

Docker

You can use gojekyll with the official danog/gojekyll image, for example to build the site in the current directory into _site:

docker run --user $UID:$GID -v $PWD:/app --pull always --rm -it danog/gojekyll build -s /app

Another example, serve the website in the current directory on http://localhost:4040, automatically reloading on changes:

docker run --user $UID:$GID -v $PWD:/app --pull always --network host --rm -it danog/gojekyll serve -s /app

Binary Downloads

1. Linux, Mac OS and Windows binaries for x86, amd64, armv6/v7, armv8, riscv64 are available from the releases page.
2. Download the latest version of dart-sass and add it to your PATH, or see the Sass website for full installation instructions.
3. [Optional] Themes. To use a theme, you need to install Ruby and bundler. Create a Gemfile that lists the theme., and run bundle install. The Jekyll theme instructions provide more detail, and should work for Gojekyll too.

From Source

Pre-requisites:

1. Install go (1) via Homebrew: brew install go; or (2) download.
2. See items (2-3) under Binary Downloads, above.

Then run:

go install github.com/osteele/gojekyll@latest

[Optional] Install command-line autocompletion

Add this to your .bashrc or .zshrc:

# Bash:
eval "$(gojekyll --completion-script-bash)"
# Zsh:
eval "$(gojekyll --completion-script-zsh)"

Status

This project works on the GitHub Pages sites that I and other contributors care about. It looks credible on a spot-check of other Jekyll sites.

Current Limitations

Missing features:

• Pagination
• Math
• Plugin system. (Some individual plugins are emulated.)
• Liquid filter sassify is not implemented
• Liquid is run in strict mode: undefined filters and variables are errors.
• Missing markdown features:
  • attribute lists
  • markdown="span", markdown="block"
  • Markdown configuration options

Also see the detailed status below.

Other Differences

These will probably not change:

By design:

• Plugins must be listed in the config file, not a Gemfile.
• The wrong type in a _config.yml file – for example, a list where a string is expected, or vice versa – is generally an error.
• Server live reload is always on.
• serve --watch (the default) reloads the _config.yml and data files too.
• serve generates pages on the fly; it doesn't write to the file system.
• Files are cached in /tmp/gojekyll-${USER}, not ./.sass-cache

Upstream:

• Markdown:
  • < and > inside markdown is interpreted as HTML. For example, This is <b>bold</b> renders as bold. This behavior matches the Markdown spec, but differs from Jekyll's default Kramdown processor.
  • The autogenerated id of a header that includes HTML is computed from the text of the title, ignoring its attributes. For example, the id of ## Title (<a href="https://example.com/path/to/details">ref</a>)) is #title-ref, not #title-https-example-path-to-details-ref.
  • Autogenerated header ids replace punctuation by the hyphens, rather than the empty string. For example, the id of ## Either/or is #either-or not #eitheror; the id of ## I'm Lucky is #i-m-lucky not #im-lucky.

Muzukashii:

• An extensible plugin mechanism – support for plugins that aren't compiled into the executable.

Feature Checklist

• Content
  • Front Matter
  • Posts
  • Static Files
  • Variables
  • Collections
  • Data Files
  • Assets
    • Coffeescript
    • Sass/SCSS
• Customization
  • Templates
    • Jekyll filters
      • scssify
      • everything else
    • Jekyll tags
  • Includes
  • Permalinks
  • Pagination
  • Plugins – partial; see here
  • Themes
  • Layouts
• Server
  • Directory watch
• Commands
  • build
    • --source, --destination, --drafts, --future, --unpublished
    • --incremental, --watch, --force_polling, JEKYLL_ENV=production
    • --baseurl, --config, --lsi
    • --limit-posts
  • clean
  • help
  • serve
    • --open-uri, --host, --port
    • --incremental, –watch, --force_polling
    • --baseurl, --config
    • --detach, --ssl-* – not planned
  • doctor, import, new, new-theme – not planned
• Windows

Troubleshooting

If the error is "403 API rate limit exceeded", you are probably building a repository that uses the jekyll-github-metadata gem. Try setting the JEKYLL_GITHUB_TOKEN, JEKYLL_GITHUB_TOKEN, or OCTOKIT_ACCESS_TOKEN environment variable to the value of a GitHub personal access token and trying again.

Contributors

Thanks goes to these wonderful people (emoji key):

Oliver Steele 💻 🎨 📖 🤔 🚇 🚧 📆 👀 ⚠️

Bjørn Erik Pedersen 📖

Maurits van der Schee 💻

Daniil Gentili 💻

Cameron Elliott 🤔

This project follows the all-contributors specification. Contributions of any kind welcome!

Attribution

Gojekyll uses these libraries:

In addition, the following pieces of text were taken from Jekyll and its plugins. They are used under the terms of the MIT License.

The theme for in-browser error reporting was adapted from facebookincubator/create-react-app.

The gopher image in the testdata directory is from Wikimedia Commons. It is used under the Creative Commons Attribution-Share Alike 3.0 Unported license.

In addition to being totally and obviously inspired by Jekyll and its plugins, Jekyll's solid documentation was indispensible --- especially since I wanted to implement Jekyll as documented, not port its source code. The Jekyll docs were always open in at least one tab during development.

Related

Hugo is the pre-eminent Go static site generator. It isn't Jekyll-compatible (-), but it's highly polished, performant, and productized (+++).

Liquid is a pure Go implementation of Liquid templates. I created it in order to use in this project.

Jekyll, of course.

License

MIT