External styles are being added when no theme is declared in _config.yml

[bryanbraun]

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• [x] Read the contributing instructions
• [x] Update to the latest Gem version (run bundle update github-pages)

This issue affects

• [x] The site generated by GitHub Pages
• [x] Building sites locally

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What did you do (e.g., steps to reproduce)

1. Clone my repo: git clone [email protected]:bryanbraun/bryanbraun.github.io.git
2. Install dependencies: bundle install
3. Delete every file ending in .scss (for good measure)
4. Run jekyll build.
5. See the generated file in _site/assets/style.css

What did you expect to happen?

No CSS files should be generated.

What happened instead?

A CSS file is generated containing normalize.css and other styles from jekyll-theme-primer. It looks like my site is falling back to using jekyll-theme-primer as its theme, even though I have no themes defined in _config.yml (and I don't want to use any external theme).

Possible workaround: If I set theme: null it seems like the stylesheet doesn't get added. I'm not sure if this is good to rely on, since it isn't documented anywhere.

Additional information

This issue was previously reported in jekyll/jekyll but it appears to be an issue with pages-gem.

• Link to the live site (if applicable): https://www.bryanbraun.com
• Link to the generated CSS file: https://www.bryanbraun.com/assets/css/style.css
• Link to the source repo (if applicable): https://github.com/bryanbraun/bryanbraun.github.io

[simonvanderveldt]

Just ran into this rogue CSS file as well. Seems like it's OK to disable the them using null since it's explicitly mentioned in the code, see https://github.com/github/pages-gem/blob/e0063bacf2e0fb4739ec80f6846796c1dc10f35c/lib/github-pages/configuration.rb#L104

[liligot]

https://github.com/vito/atom-autocomplete-gocode.git