Introducing the GitHub Widget Plugin for Nikola

Diego Carrasco G. — Thu, 04 Jul 2024 07:00:00 GMT

TL;DR

The GitHub Widget Shortcode Plugin for Nikola lets you embed a customizable widget showcasing a GitHub repository's details in your site.

Context

Today, I'm excited to announce that my GitHub Widget Plugin for Nikola has been merged! This plugin allows you to embed a GitHub repository widget directly into your Nikola-generated site, displaying key details of the repository.

Nikola is a static site generator that offers great flexibility. I've already written about it [a few times](https://diegocarrasco.com/categories/nikola/, and it's what's powers this site. However, embedding GitHub repository details required custom solutions—until now. My new plugin provides an easy way to integrate this functionality using a simple shortcode.

Why is this important? Because somehow I've been using GitHub more for public code, such as my espanso-compatible TextExpander Android App. Thus, I plan to have a section on this site to list such projects, and I was missing a way to show updated information from each repository.

With this shortcode I can just do this listing-github-widget-example.md (Source)

{{% github_widget %}}dacog/textexpander_android {{%/github_widget %}}`

and I get the following

This looks a lot better than just a link 😁

How It Works

It was a bit trial and error, as I had not used the GitHub API before.

The first approach was to use requests to call the api endpoints (such as https://api.github.com/repos/{repo}/commits) to get the json response and use that. But after that I also wanted to get the latest commits and the latest release, if available. And then I got an api rate limit error, with a nice message:

{
  "message": "API rate limit exceeded for 2.206.40.62. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.)",
  "documentation_url": "https://docs.github.com/rest/overview/resources-in-the-rest-api#rate-limiting"
}

That meant, of course, that I now had to get a token to avoid the error. I tried following the GitHub API Documentation for AUTH, but without success. And then it got me... there should already be a library for this... and there was.

I installed PyGithub and refactored my code to use it. That meant I removed most of my code, as I no longer had to call each endpoint on my own.

Authentication worked instantly and I no longer had the api rate limit error.

That's the short story. Now let's explain how to use this.

Installation

You need to have a working nikola setup. If you dont have one, you can check this article: link://slug/nikola-blog-setup

To install the plugin, run the following command:

nikola plugin -i github_widget

Optional Configuration

For enhanced API usage, add your GitHub API token to conf.py:

# Add your GitHub API token here
GITHUB_API_TOKEN = 'your_github_api_token_here'

This step is optional but recommended to avoid API rate limit issues.

Your personal token should allow access to the repositories and its contents. Read-only permission is enough.

Using the Shortcode

Here are some examples of how to use the shortcode in your markdown files:

listing-github-widget-examples.md (Source)

// Basic Example
{{% github_widget %}}user/repo{{% /github_widget %}}

// Example with Avatar and Custom Width
{{% github_widget avatar=true max_width=400px %}}user/repo{{% /github_widget %}}

// Example with Latest Release and Commit Info
{{% github_widget avatar=true latest_release=true latest_commit=true max_width=400px %}}user/repo{{% /github_widget %}}

Customization

You can customize the widget to display various details such as the repository owner's avatar, the latest release, and the latest commit. Adjust the max_width parameter to fit the widget into your site's layout.

Visual Examples

Here's what the widgets look like with the example shortcodes:

Basic Example

With Avatar and Custom Width

With Latest Release and Commit Info

CSS Customization

To style the widget, you can use the following CSS:

/* github shortcode */
.github-widget {
    display: flex;
    align-items: center;
    border: 1px solid #ddd;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    background-color: #f9f9f9;
}

.github-widget-image {
    margin-right: 10px;
}

.github-widget img {
    border-radius: 50%;
}

.github-widget .repo-info {
    display: flex;
    flex-direction: column;
}

.github-widget .repo-info h3 {
    margin: 0;
    font-size: 1.2em;
}

.github-widget .repo-info p {
    margin: 5px 0;
    font-size: 0.9em;
    color: #555;
}

.github-widget .repo-info ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 10px;
}

.github-widget .repo-info ul li {
    font-size: 0.8em;
    color: #333;
}

.github-widget h4 {
    color: black;
}

Conclusion

The GitHub Widget Plugin for Nikola makes it easy to display detailed information about any GitHub repository on your site. With simple configuration and usage, it's a great addition for any developer's blog or project page.

Diego A. Carrasco Gubernatis | Personal Website (Posts about nikola-github-widget)