#!/bin/bash

if [ ! -d .git ]; then
	echo Does not appear to be a git tree
	exit 1
fi

if [ ! -f .git/refs/heads/$1 ]; then
	echo $1 does not appear to be a valid branch
	exit 1
fi

HEAD_SHA=$(cat .git/HEAD)
BRANCH_SHA=$(cat .git/refs/heads/$1)

if [ $HEAD_SHA == $BRANCH_SHA ]; then
	echo Cannot remove current branch
	exit 1
fi

rm -rf .git/refs/heads/$1
git prune

exit 0