#! /bin/bash

# Copyright (C) 2011,2013, Joerg Jaspert <joerg@debian.org>
# Copyright (C) 2012, Ansgar Burchardt <ansgar@debian.org>
#
# 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; version 2.
#
# 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
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

set -e
set -u
set -E

export LANG=C
export LC_ALL=C

export SCRIPTVARS=/srv/ftp-master.debian.org/dak/config/debian/vars
. $SCRIPTVARS

usage() {
  echo "usage: $0 <lock> <host1> <host2> sync|pool"
  echo
  echo "sync dd-accessible copy of the archive"
  echo
  echo "arguments:"
  echo "  lock:      file used for locking"
  echo "  host1:     hostname for syncing /srv/ftp-master.debian.org"
  echo "  host2:     hostname for syncing /srv/ftp.debian.org"
  echo "  sync|pool: sync excludes ftp/, pool syncs ftp/ too"
  exit ${1:-0}
}

if [ $# -ne 4 ]; then
  usage 1
fi

lockfile="${lockdir}/${1}"
host1="${2}"
host2="${3}"
mode="${4}"

# extra options for rsync of /srv/ftp-master.debian.org
extra1=""

case "${mode}" in
    sync)
        extra1="${extra1} --exclude /ftp/"
	;;
    pool)
	;;
    *)
	echo "Unknown mode ${mode}." >&2
	exit 1
	;;
esac

cleanup() {
  rm -f "${lockfile}"
}
trap cleanup EXIT TERM HUP INT QUIT

# Also, NEVER use --delete-excluded!
if lockfile -r3 "${lockfile}"; then
    rsync -aH -B8192 \
	${extra1} \
        --exclude "/backup/*.xz" \
	--exclude "/backup/dump*" \
	--exclude "/database/*.db" \
	--exclude ".da-backup.trace" \
	--exclude "lost+found" \
	--exclude "/lock/" \
	--exclude "/mirror/" \
	--exclude "/morgue/" \
	--exclude "/queue/unchecked/" \
	--exclude "/s3kr1t" \
	--exclude "/scripts/s3kr1t" \
	--exclude "/tmp/" \
	--delete --delete-after \
	--timeout 3600 \
	-e 'ssh -o ConnectTimeout=30 -o SetupTimeout=30' \
	/srv/ftp-master.debian.org/ "${host1}:/srv/ftp-master.debian.org/"
   # command for the remote side:
   # command="rsync --server -lHogDtpre.iLsf -B8192 --timeout=3600 --delete-after . /srv/ftp-master.debian.org/"

   rsync -aH -B8192 \
       --exclude mirror \
       --exclude rsync/ \
       --exclude lost+found \
       --exclude .da-backup.trace \
       --exclude web-users/ \
       --delete --delete-after \
       --timeout 3600 \
       -e 'ssh -o ConnectTimeout=30 -o SetupTimeout=30' \
       /srv/ftp.debian.org/ "${host2}:/srv/ftp.debian.org/"
   # command for the remote side:
   # command="rsync --server -lHogDtpre.iLsf -B8192 --timeout=3600 --delete-after . /srv/ftp.debian.org/"

   if [[ ${mode} == pool ]]; then
       # Sync backports
       rsync -aH -B8192 \
           --delete --delete-after \
           --timeout 3600 \
           -e 'ssh -o ConnectTimeout=30 -o SetupTimeout=30' \
           /srv/backports-master.debian.org/mirror/ \
           ries-sync3:/srv/backports.debian.org/htdocs/debian-backports/
       # And now tell static.debian.org that something changed
       /usr/local/bin/static-update-component backports.debian.org
   fi
else
    echo "Couldn't get the lock, not syncing"
    exit 0
fi