handle-branch-merged

#!/usr/bin/env bash
# Given one or more commit-ishes, does the following:
#
# 1. Moves all its children to the main branch
# 2. Hides the commit and all its ancestors that are not also ancestors of other
#    commits.
#
# This script is designed to be used after a branch has been merged into main;
# this script will move its descendant branches to be based off of main, and
# hide the merged branch.
set -euo pipefail

base="$(git config branchless.core.mainBranch)"

for commitish in "$@"; do
    git move -x "children(\"$commitish\"):" -d "$base"
    git hide --delete-branches "draft() & only(\"$commitish\", all() - ancestors(\"$commitish\"))"
done