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https://github.com/paolobrasolin/jekyll-agda
Use literate Agda in your Jekyll website!
https://github.com/paolobrasolin/jekyll-agda
Last synced: about 2 months ago
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Use literate Agda in your Jekyll website!
- Host: GitHub
- URL: https://github.com/paolobrasolin/jekyll-agda
- Owner: paolobrasolin
- License: mit
- Created: 2022-01-12T14:13:30.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2022-01-14T16:43:41.000Z (almost 3 years ago)
- Last Synced: 2024-10-31T15:14:42.912Z (2 months ago)
- Language: Ruby
- Homepage: https://paolobrasolin.github.io/jekyll-agda/
- Size: 259 KB
- Stars: 9
- Watchers: 4
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# jekyll-agda
[![CI tests status badge][build-shield]][build-url]
[![Latest release badge][rubygems-shield]][rubygems-url]
[![License badge][license-shield]][license-url]
[![Maintainability badge][cc-maintainability-shield]][cc-maintainability-url]
[![Test coverage badge][cc-coverage-shield]][cc-coverage-url]
[build-shield]: https://img.shields.io/github/workflow/status/paolobrasolin/jekyll-agda/CI/main?label=tests&logo=github
[build-url]: https://github.com/paolobrasolin/jekyll-agda/actions/workflows/main.yml "CI tests status"
[rubygems-shield]: https://img.shields.io/gem/v/jekyll-agda?logo=ruby
[rubygems-url]: https://rubygems.org/gems/jekyll-agda "Latest release"
[license-shield]: https://img.shields.io/github/license/paolobrasolin/jekyll-agda
[license-url]: https://github.com/paolobrasolin/jekyll-agda/blob/main/LICENSE "License"
[cc-maintainability-shield]: https://img.shields.io/codeclimate/maintainability/paolobrasolin/jekyll-agda?logo=codeclimate
[cc-maintainability-url]: https://codeclimate.com/github/paolobrasolin/jekyll-agda "Maintainability"
[cc-coverage-shield]: https://img.shields.io/codeclimate/coverage/paolobrasolin/jekyll-agda?logo=codeclimate&label=test%20coverage
[cc-coverage-url]: https://codeclimate.com/github/paolobrasolin/jekyll-agda/coverage "Test coverage"
`jekyll-agda` is a [Jekyll][jekyll-url] plugin which allows you to use [literate Agda][lagda-url] for your website and take full advantage of its highlighting and hyperlinking features.
## Getting started
Assuming you have a working [Agda][agda-url] installation and a [Jekyll][jekyll-url] website already set up, you need to do just four things.
1. Add the `jekyll-agda` gem to your plugins in the `Gemfile` and run `bundle` to install it:
```ruby
# Gemfile
group :jekyll_plugins do
gem "jekyll-agda"
end
```
2. Add Agda interface files to Jekyll's list of exclusions in `_config.yml`:
```yaml
# _config.yml
exclude:
- "*.agdai"
```
3. Add Agda interface files and `jekyll-agda`'s work dir to your `.gitignore`:
```ini
# .gitignore
*.agdai
.agda-html/
```
4. Add Agda's default stylesheet (which `jekyll-agda` will produce) to the `` of your layout:
```html
```
That's it!
You can now write your posts and pages using [literate Agda][lagda-url].
Here is a sample post you can save as `_posts/2022-01-14-foobar.lagda.md` to get started:
````
---
title: My first literate Agda post
---
Let's define Peano's natural numbers:
```agda
data ℕ : Set where
zero : ℕ
suc : ℕ → ℕ
```
Is `Set` clickable? Yes it is.
And the other keywords too!
````
## Usage
Right now this plugin is an [MVP][mvp-url] and accepts no configuration, so [Getting started](#getting-started) covers pretty much everything about its usage.
The only caveat is: **write your code in unnamed independent modules** to be totally safe.
Otherwise, Agda and Jekyll naming conventions _might_ be at odds.
You can definitely try do more complex stuff though!
I simply haven't given this enough thought yet to clearly spell out the details (see last point of the [Roadmap](#roadmap)).
## Roadmap
Here is a roadmap of features I think would be useful.
- Custom output path/url instead of hardcoded `/lagda`
- Custom stylesheet instead of Agda's default `Agda.css`
- Custom layout for `/lagda/*` pages (leveraging `--html-highlight=code` instead of `--html-highlight=auto`)
- Find some convenient way to knit Agda and Jekyll naming conventions:
- Currently all pages are compiled as independent "root" files, so Agda is not affected by Jekyll's conventions as long as you don't define a `module` in your files
- Structuring code in multiple files/modules is doable but will require some clever dependency management to avoid redundant compilations
- Ideally, we'd like complete freedom in structuring code to do stuff like multiple pages corresponding to modules, or a series of posts in which later ones import the previous ones
- Find a way to support highlighting and hyperlinking for inline code, i.e. for markdown fragments like `` `Set`{:.agda} ``.
Of course any feedback is welcome!
## Acknowledgements
- Thanks to [@conal](https://github.com/conal) for [prompting me with the idea](https://twitter.com/conal/status/1479884896864591874).
[jekyll-url]: https://jekyllrb.com/
[agda-url]: https://github.com/agda/agda
[lagda-url]: https://agda.readthedocs.io/en/latest/tools/literate-programming.html#literate-markdown
[mvp-url]: https://en.wikipedia.org/wiki/Minimum_viable_product