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README.md

check, build, deploy site

Software Carpentry Website

This is the repository for the new Software Carpentry website. Please submit additions and fixes as pull requests to our GitHub repository.

Lessons are not stored in this repository: please see the lessons page for links to their repositories.

Software Carpentry is an open project, and we welcome contributions of all kinds. By contributing, you are agreeing that Software Carpentry may redistribute your work under these licenses, and to abide by our code of conduct.

Setup

The website uses Jekyll, a static website generator written in Ruby. You need to have Version 2.7.1 or higher of Ruby and the package manager Bundler (The package manager is used to make sure you use exactly the same versions of software as GitHub Pages). Bundler can be installed with $ gem install bundler. If you are on Linux, you will need to install the Ruby header files (e.g., $ sudo apt-get install ruby-dev on Debian/Ubuntu). After checking out the repository, please run:

Alternative Method: If you have Docker installed on your system, you may be able to use the make dockerbuild and make dockerserve targets. These Makefile targets will install all Jekyll dependencies into the folder vendor/ and build/serve the website respectively.

$ bundle install

to install Jekyll and the software it depends on. You may consult Using Jekyll with Pages for further instructions.

You will also need Python 3 with PyYAML available in order to re-generate the data files the site depends on.

Previewing

Please do not use jekyll build or jekyll serve directly to build or view the website. Instead, you should use the following commands:

  • make or make commands: list available commands.
  • make serve: build files locally and run a server at http://0.0.0.0:4000/ for viewing. This is the best way to preview the site.
  • make site: build files locally, but do not serve them dynamically.
  • make clean removes the _site directory and any Emacs editor backup files littering the source directories.

The details describes a few more advanced commands as well. Please note that rebuilding this site can take 3-4 minutes on a moderately powerful laptop.

Development

To write a blog post, create a file called _posts/YYYY/MM/YYYY-MM-DD-some-title.html or _posts/YYYY/MM/YYYY-MM-DD-some-title.md (for HTML and Markdown respectively). YYYY is the 4-digit year of the post, MM the 2-digit month, and DD the 2-digit day; some-title can be any hyphenated string of words that do not include special characters such as quotes. Please do not use underscores or periods in the names. When published, your blog post will appear as http://software-carpentry.org/blog/YYYY/MM/some-title.html.

The YAML header of a blog post must look like this:

---
layout: post
authors: ["Your Name"]
title: "A Title-Cased Title for the Post"
date: YYYY-MM-DD
time: "hh:mm:ss"
tags: ["Some Category", "Some Other Category"]
---

where YYYY-MM-DD is replaced by the post's date and hh:mm:ss by the post's time. Note that the time must be quoted so that the colons it contains do not confuse Jekyll's YAML parser. Note also that authors is a list---if the post has more than one author, please format the list like this:

...
authors: ["First Author", "Second Author", "Third Author"]
...

rather than running all the authors' names together in one long string.

To create a new page, add a file to the pages directory. This can be written in either Markdown or HTML, and must have the following YAML header:

layout: page-fullwidth
permalink: /some/path/
title: Title in Title Case

You must then also add the page to _data/navigation.yml, which is used to generate the site's pull-down navigation menu.

To add a workshop, fill in the workshop request form online. You should fill in this form even for self-organized workshops in order to get your workshop into our database.

Do not edit the YAML in _data/amy.yml: this is overwritten every time the website is rebuilt on the server.

The Details

Data Files

This website depends on the dashboard data file, each of which is rebuilt by make:

  • make dashboard generates _data/dashboard.yml, which contains information about the state of our GitHub repositories. In order to run this, you must get a GitHub API token and store it in $HOME/.git-token.

Styles

The files in the _sass and assets directories control the appearance of this site.

Build and Deploy

The website is build with a GitHub Actions (see this file).

Each time a commit is pushed to the default branch of the repository (main) and every 6 hours, the GitHub Action does the following:

  1. it validates the YAML headers of all the pages and blog posts
  2. it builds the website using the latest versions of our data feeds to generate the dynamic content on the site (list of workshops, etc.). For this, we use the Jekyll Get JSON plugin.
  3. it pushes the content of the site to an AWS S3 Bucket
  4. files that have changed since the last website update are invalidated in the AWS CloudFront distribution.

Previewing the live site

Once changes to the site are merged, they can take several hours to go live. In the meantime, changes can be previewed here.