jvkumar/hook.sh

## hook.sh
On Mac OS (or, likely, any BSD), the sed command parameters have to be slightly different. Try this:

#!/bin/sh

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
Save this file as .git/hooks/pre-commit -- or look for the one that's already there, and paste the bottom chunk somewhere inside it. And remember to chmod a+x it too.
	On Mac OS (or, likely, any BSD), the sed command parameters have to be slightly different. Try this:

	#!/bin/sh

	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
	Save this file as .git/hooks/pre-commit -- or look for the one that's already there, and paste the bottom chunk somewhere inside it. And remember to chmod a+x it too.