#!/bin/sh

PSQL=/usr/bin/psql
SCP=/usr/bin/scp
SSH=/usr/bin/ssh
LOGGER="/usr/bin/logger -i -p local0.info -t pgpool"
RSYNC="/usr/bin/rsync --archive --quiet --compress --rsh=$SSH --delete"
BASENAME=`/usr/bin/basename $0`
HOSTNAME=`/bin/hostname`
ID=`/usr/bin/id -un`

# $1 = Database cluster path of a master node.
# $2 = Hostname of a recovery target node.
# $3 = Database cluster path of a recovery target node. 

SRC_DATA=$1
DST_HOST=$2
DST_DATA=$3

$LOGGER "Executing $BASENAME as user $ID"

$LOGGER "Executing pg_start_backup"
$PSQL -d postgres -c "select pg_start_backup('pgpool-recovery')"

$LOGGER "Creating file recovery.conf"
echo "restore_command = '$SCP $HOSTNAME:$SRC_DATA/pg_xlog/%f %p'" > $SRC_DATA/recovery.conf

$LOGGER "Rsyncing directory base"
$RSYNC $SRC_DATA/base/ $DST_HOST:$DST_DATA/base/
$LOGGER "Rsyncing directory global"
$RSYNC $SRC_DATA/global/ $DST_HOST:$DST_DATA/global/
$LOGGER "Rsyncing directory pg_clog"
$RSYNC $SRC_DATA/pg_clog/ $DST_HOST:$DST_DATA/pg_clog/
$LOGGER "Rsyncing directory pg_multixact"
$RSYNC $SRC_DATA/pg_multixact/ $DST_HOST:$DST_DATA/pg_multixact/
$LOGGER "Rsyncing directory pg_subtrans"
$RSYNC $SRC_DATA/pg_subtrans/ $DST_HOST:$DST_DATA/pg_subtrans/
$LOGGER "Rsyncing directory pg_tblspc"
$RSYNC $SRC_DATA/pg_tblspc/ $DST_HOST:$DST_DATA/pg_tblspc/
$LOGGER "Rsyncing directory pg_twophase"
$RSYNC $SRC_DATA/pg_twophase/ $DST_HOST:$DST_DATA/pg_twophase/
$LOGGER "Rsyncing directory pg_xlog"
$RSYNC $SRC_DATA/pg_xlog/ $DST_HOST:$DST_DATA/pg_xlog/
$LOGGER "Rsyncing file recovery.conf (with source deletion)"
$RSYNC --remove-source-files $SRC_DATA/recovery.conf $DST_HOST:$DST_DATA/

$LOGGER "Executing pg_stop_backup"
$PSQL -d postgres -c 'select pg_stop_backup()'

exit 0

