#!/usr/bin/env bash
set -e

# Assert there is at least one branch provided
test -z "$1" && echo "branch required." 1>&2 && exit 1

for branch in "$@"
do
  remote=$(git config "branch.$branch.remote" || echo "origin")
  ref=$(git config "branch.$branch.merge" || echo "refs/heads/$branch")

  git branch -D "$branch" || true
  # Avoid deleting local upstream
  [ "$remote" = "." ] && continue
  git branch -d -r "$remote/$branch" || continue
  git push "$remote" ":$ref"
done