#!/bin/sh
# Cut a task branch and record the branch it came from, so pre-push can open
# the PR against the right base.
#
#   scripts/task-branch.sh 359 narrow-single-token
#   -> task/359-narrow-single-token, parent recorded as the current branch

set -eu

if [ $# -lt 2 ]; then
	echo "usage: $0 <vikunja-id> <slug>" >&2
	exit 2
fi

id=$1
shift
slug=$(printf '%s' "$*" | tr '[:upper:] ' '[:lower:]-' | tr -cd 'a-z0-9-')

parent=$(git symbolic-ref --short HEAD)
branch="task/$id-$slug"

git checkout -b "$branch"

dir="$(git rev-parse --git-dir)/maven-parent"
mkdir -p "$dir"
printf '%s\n' "$parent" > "$dir/$(printf '%s' "$branch" | tr '/' '_')"

echo "$branch, cut from $parent"
echo "Commits on it must end with (V-$id)."