Shell script for showing differences between working copy and committed state of Xcode projects. Uses the xcodeproj commandline utitlity from the xcodeproj Gem.

git-xcodeproj-diff.sh

#!/bin/sh

##
# Git diff for Xcode projects
#
# $ sudo gem install xcodeproj
##

if [ -z "$DIFF" ]
then
  DIFF=diff
fi

if [ -z "$1" ]
then
	export GIT_EXTERNAL_DIFF=$0
	git diff
else
	if echo "$2"|grep '.pbxproj$' >/dev/null 2>&1
	then
		TMP=`mktemp -d /tmp/tmp.XXXXXX` &&
		cp "$2" "$TMP/project.pbxproj" &&
		
		xcodeproj project-diff "$TMP" "`dirname "$5"`"

		rm -f "$TMP/project.pbxproj"
		rmdir "$TMP"
	fi
fi