systemrescue-backup/scripts/postgresql

#!/bin/bash

restoreDir=/etc/restore
pgsqlDir="$restoreDir/postgresql"
scriptDir="$(dirname "$0")"

function readConfig() {
	local $config

	if [[ -r "${scriptDir}/../config/postgresql.cfg" ]]; then
		config="$(readlink -f "${scriptDir}/../config/postgresql.cfg")"
	else
		exit 2
	fi

    while read -r -a vals
    do
        [[ "${vals[*]}" =~ ^#.*$ ]] && continue
        [[ -z "${vals[0]}" ]] && continue
        if [[ "${vals[0]}" -ge 10 ]]; then
            echo "${vals[@]}"
        fi
    done < "$config"
}

function runBackups() {
    local vals
    local version
    local cluster

    while read -r -a vals
    do
        version="${vals[0]}"
        cluster="${vals[1]}"

        echo "Backing up PostgreSQL $version - $cluster"
        pg_backupcluster "$version" "$cluster" createdirectory                      || return $?
        sudo -u postgres pg_backupcluster "$version" "$cluster" basebackup          || return $?
        sudo -u postgres pg_backupcluster "$version" "$cluster" dump                || return $?
        sudo -u postgres pg_backupcluster "$version" "$cluster" expirebasebackups 1 || return $?
        sudo -u postgres pg_backupcluster "$version" "$cluster" expiredumps 1       || return $?
    done < <(readConfig)
}

hook_before() {
	if [[ -d "$pgsqlDir" ]]; then
		rm -rf "$pgsqlDir" || exit 1
	fi

	runBackups || exit $?
}

hook_after() {
	rm -rf "$pgsqlDir" || exit 1
}

hook_fail() {
	:
}

hook_final() {
	:
}

case "$1" in
before) hook_before || exit $? ;;
after) hook_after || exit $? ;;
fail) hook_fail || exit $? ;;
finally) hook_final || exit $? ;;
esac