#!/bin/bash

set -e

unset commit_message
if [ $# -eq 1 ]; then
  commit_message="$1"
elif [ $# -ne 0 ]; then
  >&2 'usage: commit-package [commit-message]'
  >&2 '  without a commit message, it will only be added for commit'
  exit 1
fi

if [ -d '.git' ] || [ -f '.git' ]; then
  if ! git remote \
    | grep -qxF aur \
    || git remote \
    | grep -qxF ecknernet; then
    >&2 echo 'I cannot find the necessary remotes: aur and ecknernet'
    exit 1
  fi
  if ! git branch --format='%(refname:lstrip=-1)' \
    | grep -qxF master \
    || git branch --format='%(refname:lstrip=-1)' \
    | grep -qxF archlinuxewe; then
    >&2 echo 'I cannot find the necessary branches: master and archlinuxewe'
    exit 1
  fi
  if ! git merge-base --is-ancestor master archlinuxewe; then
    >&2 echo 'master is not an ancestor of archlinuxewe'
    exit 1
  fi
  git checkout archlinuxewe
  makepkg --printsrcinfo > .SRCINFO
  git commit 'PKGBUILD' '.SRCINFO' -m "${commit_message:-rebuild}"
  git checkout master
  git diff archlinuxewe{^,} \
  | git apply
  git commit 'PKGBUILD' '.SRCINFO' -m "${commit_message:-rebuild}"
  git push aur
  git checkout archlinuxewe
  git rebase aur
  git push ecknernet
  cd ..
  if [ -n "${commit_message}" ]; then
    git commit "${paket}" -m "${commit_message}"
  else
    git add "${paket}"
  fi
else
  if [ -n "${commit_message}" ]; then
    git commit 'PKGBUILD' -m "${commit_message}"
  else
    git add 'PKGBUILD'
  fi
fi