Git update hook - commit message format

update

#!/bin/sh

ref_to_check="refs/heads/dev"
commit_format="^\[(NG|KWAPI|KWUI|KEC|KWSRV)-[1-9]+\]\s"

refname="$1"
oldrev="$2"
newrev="$3"

echo "Enforcing Policies..."
echo $oldrev $newrev $refname

if [ "$refname" == "$ref_to_check" ]; then
	git rev-list $oldrev..$newrev | while read rev; do
		commit_message=`git cat-file commit $rev | sed '1,/^$/d'`
		if ! [[ $commit_message =~ $commit_format ]]; then
			echo "[POLICY]" 
			echo "Your message is not formatted correctly. Please follow the pattern: " $commit_format 
			echo "For more information see the page https://confluence.accellion.net/display/EN/Git+Convention"
			exit 1
		fi;
	done
	[ $? == 1 ] && exit 1;
fi
exit 0