#!/usr/bin/env bash

set -o nounset
set -o xtrace
set -o errexit

cd ./.gitdir
git fetch
if git rev-parse --verify "${1}" >/dev/null 2>&1 ; then
    # local branch exists, use that
    git worktree add --force ../${1} "${1}"
elif git rev-parse --verify origin/"${1}" >/dev/null 2>&1 ; then
    # remove branch exists, use that
    git worktree add --force -b ${1} ../${1} origin/${1}

else
    git worktree add --no-track --force -b ${1} ../${1} origin/master
fi
cd ../"${1}"
git push --set-upstream origin ${1}
git submodule update --init