Git Writing Tracker Post-Commit

PATH=$PATH:/usr/local/bin:/usr/local/sbin
#!/bin/bash
gitbranch=`git rev-parse --abbrev-ref HEAD`
if [ $gitbranch = "master" ]; then
	date=`date +%m/%d/%Y`
	datetime=`date +%r`
	gitwa=`git diff HEAD^ HEAD --word-diff=porcelain | grep -e "^+[^+]" | wc -w`
	gitwd=`git diff HEAD^ HEAD --word-diff=porcelain | grep -e "^-[^-]" | wc -w`
	commit=`git log -1 --pretty=%B`
	cnt=`expr $gitwa - $gitwd`
	theURL='https://script.google.com/a/macros/username/s/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/exec'
	curl -L --get $theURL --data-urlencode "Date=$date" --data-urlencode "Time=$datetime" --data-urlencode "WordCount=$cnt" --data-urlencode "Commit=$commit" --data-urlencode "Adds=$gitwa" --data-urlencode "Deletes=$gitwd"
fi