pre-commit

pre-commit

#!/usr/bin/env sh

# Tidy up whitespace on commit.
# By-pass it with the --no-verify option to git commit

if git-rev-parse --verify HEAD >/dev/null 2>&1 ; then
    against=HEAD
else
   # Initial commit: diff against an empty tree object
    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

# Find files with trailing whitespace
for FILE in `exec git diff-index --check --cached $against -- | sed '/^[+-]/d' | sed -E 's/:[0-9]+:.*//' | uniq` ; do
    # Fix them!
    sed -i '' -E 's/[[:space:]]*$//' "$FILE"
    git add "$FILE"
done

A pre-commit hook to tidy up whitespace before committing.

run : git commit --no-verify to skip running this hook.

I've got white space warnings turned off so I don't even know when Xcode is leaving in spaces.

Emacs is already set to clear whitespace on save so it's not an issue.

Save this file as pre-commit in the .git/hooksl directory (remember to chmod +x it to make it executable)