pandoc-markdown-jekyll-theme

This is a Jekyll theme for blogging with Pandoc. It's based off of Pandoc Markdown CSS Theme for the original CSS file. Read more about the theme there.

Installation

There are two external dependencies in order to use this theme:

Follow the installation instructions for your platform. If you’re using macOS, installation is as easy as:

brew install pandoc
brew install jez/formulae/pandoc-sidenote

Next, add this line to your Jekyll site's Gemfile:

# -- Gemfile --
# ...

gem "pandoc-markdown-jekyll-theme"

And then run:

# Install the Jekyll theme
bundle install
# Copy out one file that has to live in the site folder, not the theme
cp $(bundle info pandoc-markdown-jekyll-theme --path)/_template.html5 .
# Bust the Jekyll cache (Jekyll doesn't track _template.html5 changes)
rm -rf .jekyll-cache

And finally, update your _config.yml file:

# -- _config.yml --

theme: pandoc-markdown-jekyll-theme

gems:
  - jekyll-pandoc

markdown: Pandoc

pandoc:
  extensions:
    - from: 'markdown+smart+tex_math_single_backslash'
    - filter: 'pandoc-sidenote'
    - template: '_template'
    - katex
    - toc
    - M: 'site__baseurl=/'

If your Jekyll site has a baseurl: setting in _config.yml, change the last line above to site__baseurl=$BASEURL/, replacing $BASEURL with what the setting of your baseurl property reads. (There is unfortunately no easy way to get the Pandoc template file to read from the Jekyll config, so the value must be duplicated.)

Usage

The following variables are used by this theme.

site.title
- Only shows up as suffix in <title> element
page.title
site.author
page.author
page.author_url
site.baseurl
- Make sure you don't have a trailing slash here
site.header_includes
page.header_includes
- You can use these to include raw HTML in the <head>
site.include_after
site.pandoc_markdown_skip_syntax_theme
- Set to true to skip including the default syntax theme CSS file.
page.include_after
- You can use these to include raw HTML in the <body> before the content
site.include_before
page.include_before
- You can use these to include raw HTML in the <body> after the content
page.layout
- Pick one of index, page, or post
- index won't have a "Return home" link at the bottom of the page
page.subtitle
- Shows up in the page.
site.description
page.description
- Only shows up in the <head> section, as a <meta> tag.
page.date
page.keywords
page.math
- If true, we'll include KaTeX for displaying math formulas. Will add JavaScript on this page.
page.lang
- Sets the HTML lang attribute. Default: 'en'
page.dir
- Sets the HTML dir attribute. Default: 'ltr'

You can also define:

_includes/enable_checkboxes.html

to be an empty file in your project to remove the only non-math JavaScript.

Developing

To update KaTeX:

katex_version=0.11.1
mkdir assets/libs/KaTeX/$katex_version/
cd assets/libs/KaTeX/$katex_version/
wget https://cdnjs.cloudflare.com/ajax/libs/KaTeX/$katex_version/katex.min.js
wget https://cdnjs.cloudflare.com/ajax/libs/KaTeX/$katex_version/katex.min.css
rg --no-heading --no-filename --no-line-number --only-matching 'url\(font[^)]+\)' | \
  cut -c 5- | \
  sed -e 's/)$//' | \
  sed -e "s+^+https://cdnjs.cloudflare.com/ajax/libs/KaTeX/$katex_version/+" | \
  xargs wget -i -
mkdir -p fonts
mv *.ttf *.woff *.woff2 fonts

To make a release:

version=TODO
vim pandoc-markdown-jekyll-theme.gemspec
git commit pandoc-markdown-jekyll-theme.gemspec -m "$version"
git tag "$version"
git push --tags origin master
gem build pandoc-markdown-jekyll-theme.gemspec
gem push "pandoc-markdown-jekyll-theme-$version.gem"

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