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

tmp="$(mktemp -t "$(basename "$0").XXXXXXXXXX")"

printf "
$VERSION / $(date +"%Y-%m-%d")
==================

$(git --no-pager log --no-merges --pretty="format: * %s (%an)" $PREVIOUS_VERSION..)
" >"$tmp"

cat History.md >>"$tmp"
mv "$tmp" History.md
git add History.md