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#!/usr/bin/env bash

# Copyright (C) 2011-2012 Nicolás Reynolds <fauno@parabola.nu>
# Copyright (C) 2012 Joshua Ismael Haase Hernández (xihh) <hahj87@gmail.com>
#
# License: GNU GPLv3+
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

. libremessages
. "$(librelib conf.sh)"
load_files libretools
check_vars libretools TORUPATH || exit 1

LASTSYNCFILE=${TORUPATH}/lastsync
FORCE=false
QUIET=false
DEBUG=false

# Stores the lastsync date
lastsync() {
  local lastsyncfile

  lastsyncfile=$1

  [ -e ${lastsyncfile} -a ! -w ${lastsyncfile} ] && {
    error "The sync date can't be saved. ${lastsyncfile} isn't writable."
    return 1
  }

  date +%s > ${lastsyncfile}
  touch ${lastsyncfile}
}

get_dbs() {
  local _db
  for _db in /var/lib/pacman/sync/*.db; do
    bsdtar tf ${_db} | cut -d'/' -f1 | sort -u
  done
}

# repo paths
get_pkgbuilds() {
  pkgbuilds=()

  if [[ $FORCE = true || ! -e ${LASTSYNCFILE} ]]; then

    $QUIET || warning "Forcing upgrade"
# Get all PKGBUILDs
    extra=""
  else
# Only find newer than lastsyncfile and read everything else from cache
    extra=" -newer ${LASTSYNCFILE}"
  fi

# Return all PKGBUILDs found
  find $@ -mindepth 2 -maxdepth 3 -type f -name 'PKGBUILD' ${extra}
}

# End inmediately but print a useful message
trap_exit() {
  error "$@"

  exit 1
}

# Trap signals from makepkg
set -E
trap 'trap_exit "TERM signal caught. Exiting..."' TERM HUP QUIT
trap 'trap_exit "Aborted by user! Exiting..."' INT
trap 'trap_exit "An unknown error has occurred. Exiting..."' ERR