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#! /bin/sh
# This file is part of BEAM
# Copyright (C) 2012 Sergey Poznyakoff
#
# BEAM 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, or (at your option)
# any later version.
#
# BEAM 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 BEAM. If not, see <http://www.gnu.org/licenses/>.
# Configuration keywords:
#
# item_type=postgres [mandatory]
# item_database=STRING [mandatory]
# postgres_check item
postgres_check() {
local database
eval database=\$${1}_database
test -z "$database" && error "${1}_database not set" && return 1
return 0
}
# postgres_list item prefix
postgres_list() {
local database
eval database=\$${1}_database
echo "${2}PostgreSQL database $database"
}
# postgres_backup item
postgres_backup() {
local database
eval database=\$${1}_database
logit "backing up PostgreSQL database $database"
test -z "$database" && abend 1 "${1}_database not set"
if [ -z "$dry_run" ]; then
su postgres -c "pg_dump $verbose $database" > $backup_tmp_dir/$1-$week-$round-$level
else
echo "su postgres -c \"pg_dump $verbose $database\" > $backup_tmp_dir/$1-$week-$round-$level"
fi
if [ $? -ne 0 ]; then
tarerror=$((tarerror + 1))
logit "failed"
else
logit "creating $1-$week-$round-$level.$tar_suffix"
$dry_run tar $verbose $taroptions \
-f $backup_archive_dir/$1-$week-$round-$level.$tar_suffix \
-C $backup_tmp_dir $1-$week-$round-$level
tarcode $?
$dry_run rm $backup_tmp_dir/$1-$week-$round-$level
fi
}
postgres_restore() {
local u database
eval database=\$${1}_database
logit "restoring PostgreSQL database $database"
u=$(umask)
trap "umask $u" 1 2 3 13 15
umask 077
$dry_run tar $verbose $taroptions \
-f $backup_archive_dir/$1-$week-$round-$level.$tar_suffix
e=$?
tarcode $e
if [ $e -eq 0 ]; then
logit "restoring database from the dump"
if [ -n "$dry_run" ]; then
cat <<-EOT
su postgres -c "dropdb $database"
su postgres -c "createdb $database"
su postgres -c "psql -d $database -f $1-$week-$round-$level"
rm $1-$week-$round-$level
EOT
elif [ -r $1-$week-$round-$level ]; then
su postgres -c "dropdb $database"
su postgres -c "createdb $database"
su postgres -c "psql -d $database -f $1-$week-$round-$level" > db-$1.log
if grep ERROR db-$1.log >/dev/null; then
error "errors occurred during restore; see db-$1.log for details"
error "dump preserved in file $1-$week-$round-$level"
tarerror=$((tarerror + 1))
else
rm $1-$week-$round-$level
fi
fi
fi
umask $u
trap - 1 2 3 13 15
}
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