#!/bin/bash

# variables
REPODIR="${HOME}/arch/repo"
STAGINGDIR="${HOME}/arch/staging/"

# functions
func_update() {
  PKGNAME="$1"
  REPODIR="$2"

  echo "=> Checking ${PKGNAME}"
  echo ${PKGNAME} | /usr/bin/grep -q "\-svn\|\-git\|\-bzr" && return 1;
  /usr/bin/yaourt -G aur/${PKGNAME}
  [ -d ${PKGNAME} ] || return 1;
  
  cd ${PKGNAME}
  PKGVER=$(/usr/bin/basename $(/usr/bin/find ${REPODIR} -name "${PKGNAME}*.pkg.tar.xz") | /usr/bin/awk -F '-' '{printf("%s-%s", $(NF-2), $(NF-1));}')
  _NEWVER=$(/usr/bin/grep ^pkgver= PKGBUILD | /usr/bin/sed 's/^pkgver=//' | /usr/bin/tr -d \"\|\')
  _NEWREL=$(/usr/bin/grep ^pkgrel= PKGBUILD | /usr/bin/sed 's/^pkgrel=//' | /usr/bin/tr -d \"\|\')
  NEWVER="${_NEWVER}-${_NEWREL}"
  cd ../
  if [ "${PKGVER}" = "${NEWVER}" ]; then
    /usr/bin/rm -rf ${PKGNAME}
    echo "${PKGNAME} is up-to-date"
  else
    echo "${PKGNAME} is out-of-date"
  fi
}

# get list
/usr/bin/rm -f "${STAGINGDIR}/pkglist"
cd "${REPODIR}/i686"
/usr/bin/find * -name "*.pkg.tar.xz" >> ${STAGINGDIR}/pkglist

# work block
cd "${STAGINGDIR}"
for PACKAGE in $(cat pkglist); do
  PKGNAME=$(echo ${PACKAGE} | /usr/bin/awk -F '-' '{for(i=1; i<=NF-3;i++) {printf("%s-", $i);}}' | /usr/bin/sed 's/.$//')
  func_update ${PKGNAME} ${REPODIR}
done
/usr/bin/rm -f "${STAGINGDIR}/pkglist"

# check for updates
cd "${STAGINGDIR}"
if [[ $(find * -type d | wc -l) > 0 ]]; then
  repo-update
fi