unixorn/git-extra-commands

#!/usr/bin/env bash
# Usage: release-tag <git-tag> [-- <source-files>...]
#
# Create a GitHub release for a specified tag. The release notes are
# automatically populated with the contents of git log since the last tagged
# version. The text editor will open so you have a chance to edit release notes
# before they are published.
#
# List files or directories as `<source-files>` to limit the git log to only
# changes in these locations.
#
# Requires: hub 2.3.0+
#
# https://github.com/mislav/dotfiles/blob/master/bin/release-tag
set -eu

release_notes() {
  git show "$1" -s --format=%s | head -1
  echo
  changelog "$@"
}

hub release create "${1?}" -F <(release_notes "$@") --edit