#!/usr/bin/env bash

# release: perform the chore work required for a pe-parse/pepy release

set -eo pipefail

function installed {
  cmd=$(command -v "${1}")

  [[ -n "${cmd}" ]] && [[ -f "${cmd}" ]]
  return ${?}
}

function die {
  >&2 echo "Barf: ${*}"
  exit 1
}

# Fail early if we don't have the expected tools.
installed git || die "Missing dependency: git"

# Fail early if `git status` reports any untracked changes.
[[ -n $(git status -s) ]] && die "Untracked changes in repo"

# Next, check the VERSION in version and make sure it doesn't already have a git tag.
[[ -f ./VERSION ]] || die "Missing VERSION file; wrong directory?"
version=v$(<./VERSION)
[[ -n $(git tag -l "${version}") ]] && die "git tag for ${version} already exists!"

# Next, craft a tag for the current HEAD. Push both the current commit and the tag.
git tag "${version}"
git push
git push origin "${version}"

echo OK