Skip to content

Instantly share code, notes, and snippets.

@50kudos
Last active November 3, 2019 02:03
Show Gist options
  • Save 50kudos/3028fac585eda85aea9a to your computer and use it in GitHub Desktop.
Save 50kudos/3028fac585eda85aea9a to your computer and use it in GitHub Desktop.
A Bash script that lists all unused css classes in html/haml/erb files for rails project (or maybe others depending on project structure)
#!/bin/bash
cat $(find app/assets/stylesheets/ -type f) |
grep -Eo '\.[a-z]+[a-z0-9_-]*' | sort | uniq | sed s/.// |
while read CSS; do
if ! grep -Erqi "([^(remove|has)]?class[(:|=|[:space:]*=>[:space:]*)]*[[:space:]\W]*[(\"|')]*[-a-z0-9[:space:]]*$CSS|\\.$CSS\b)" app/views/ vendor/assets/ app/assets/javascripts/; then
echo $CSS >> unused.scss;
fi
done
@julianvargasalvarez
Copy link

Thanks, very useful

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment