Git pre-commit hook that detects non-breaking spaces

pre-commit.zsh

#!/usr/bin/env zsh
# Look for non-breaking spaces hidden in code, refuse
# to commit if there are some. This hook depends on the
# great ripgrep (https://github.com/BurntSushi/ripgrep).

# You can use bash if you prefere it over zsh, and ag
# over rg.

! rg --colors 'match:bg:yellow' -C 1 ' ' $(git ls-files) && exit 0

cat << TEXT
⚠️  There is a non breaking space in your code, see notice above.
   You should  remove it before committing, or you can ignore
   this using \`git commit --no-verify\`.

   To replace every non-breaking spaces in your code, you can copy paste
   this snippet:

       rg --files-with-matches  ' ' \$(git ls-files) | xargs sed -i '' 's/ / /'
TEXT

exit 1