Pre-Commit Git Hook to remove Reveal.framework references.

gistfile1.sh

#!/bin/bash

git diff --cached --name-status | while read st file; do
	# skip deleted files
	if [ "$st" == 'D' ]; then continue; fi
	# do a check only on the pbxproj file
	if [[ "$file" =~ 'project.pbxproj' ]] ; then
	    # Remove references to Reveal.framework
		sed -i '' -E 'N;s/.*Reveal.*\n(.*)/\1/' "$file"
		sed -i '' -E 'N;s/(.*)\n.*Reveal.*/\1/' "$file"	

		git add "$file"
	fi
done

if git diff --staged --name-only --quiet; then
	echo "No files to commit after removing Reveal references"
	exit 1
fi