#!/bin/sh

refname=$1
oldrev=$2
newrev=$3
oldtree=$4
newtree=$5
access_flag=$6
refex=$7
repo=$8

reject()
{
        echo "================================================================"
        echo "$1"
        echo "================================================================"
        exit 1
}

for rev in $(git log --format=%H "${oldrev}..${newrev}" 2>/dev/null); do
        p2=$(git log -1 --format=%P "${rev}" | awk '{print $2}')
        # if this is a merge commit
        if [ -n "${p2}" ]; then
                branch_src=$(git branch --contains "${p2}" | grep '^  vendor/')
                branch_dst=${refname}

                if [ -z "$branch_src" ]; then
                        reject "Currently only allow merge from vendor/*"
                else
                        branch_src="refs/heads/${branch_src##  }"
                fi

                if [ "${branch_src}" = "refs/heads/vendor/openzfs/zfs-2.1-release" ] && \
                        [ "${branch_dst}" = "refs/heads/stable/13" ]; then
                        exit 0
                fi
                if [ "${branch_src}" = "refs/heads/vendor/openzfs/zfs-2.2-release" ] && \
                        [ "${branch_dst}" = "refs/heads/stable/14" ]; then
                        exit 0
                fi

                if [ "${branch_dst}" = "refs/heads/main" ]; then
                        exit 0
                fi
	fi
done