#!/bin/bashset -eu -o pipefail git init -q git checkout -q -b maingit commit -q --allow-empty -m c1git branch dt1git branch d1 mkdir -p .git/refs/remotes/origin cp .git/refs/heads/main .git/refs/remotes/origin/cp .git/refs/heads/main .git/refs/d1 echo "ref: refs/remotes/origin/main" > .git/refs/remotes/origin/HEADecho "notahexsha" > .git/refs/broken echo "ref: refs/heads/multi-link-target1" > .git/refs/multi-linkecho "ref: refs/tags/multi-link-target2" > .git/refs/heads/multi-link-target1echo "ref: refs/remotes/origin/multi-link-target3" > .git/refs/tags/multi-link-target2git rev-parse HEAD > .git/refs/remotes/origin/multi-link-target3  echo "ref: refs/loop-b" > .git/refs/loop-aecho "ref: refs/loop-a" > .git/refs/loop-b git tag t1git tag -m "tag object" dt1 git pack-refs --all --prune