Delete merged gerrit git branch using Change-ID

git-branch-cleanup.sh

#!/bin/zsh
declare -a unmerged
git rev-parse --show-toplevel 2>/dev/null >/dev/null || { echo "Not a git dir"; exit 1 ;}

git fetch origin;

git branch --merged|grep -v 'master'|xargs git branch -d


for branch in $( git branch  --no-merged );do
    LOG=$(git log --format=%h --grep $(git log -n1 ${branch}|grep Change-Id|sed 's/.* //'))
    if [[ -n ${LOG} ]];then
        echo "${branch} was merged in commit ${LOG}"
        git branch -D ${branch}
    else
        unmerged=("$unmerged[@]" ${branch})
    fi
done

echo "unmerged branches are: "
for i in ${unmerged[@]};do
    echo $i
done