perkeep/misc/pre-commit.githook

#!/usr/bin/env sh

exitstatus=0

#third_party imports.
cd third_party
rewrite=`./rewrite-imports.sh -l`
cd ..
if [ -n "$rewrite" ]
then
	exitstatus=1
	for r in $rewrite
	do
		echo $r
	done
	echo "The above need their imports to be fixed. Use rewrite-imports.sh -w"
fi

#gofmt and trailing space errors
committed=`git diff-index --cached --name-only HEAD`
for c in $committed
do
	if [ ! -e "$c" ]
	then
		continue
	fi
	gofile=`echo $c | grep -E '.*\.go$'`
	javafile=`echo $c | grep -E '.*\.java$'`
	if [ -n "$gofile" ]
	then
		fmtdiff=`git show ":$c" | gofmt -d 2>&1`
		if [ -n "$fmtdiff" ]
		then
			echo "gofmt needed on "$c
			exitstatus=1
		fi
	fi
	if [ -n "$gofile" -o -n "$javafile" ]
	then
		trailspace=`git diff-index --cached --check HEAD $c | grep 'trailing whitespace'`
		if [ -n "$trailspace" ]
		then
			echo $trailspace
			exitstatus=1
		fi
	fi
done
if [ "$exitstatus" -ne 0 ]
then
	echo "You can override this check with 'git commit --no-verify'"
fi

exit $exitstatus