From f38c82b02d03fd721f87c4876308e9f7ab789ca8 Mon Sep 17 00:00:00 2001
From: Alexander Barton <alex@barton.de>
Date: Wed, 6 Jul 2016 16:17:58 +0200
Subject: [PATCH] Implement global "setup_exec" configuration option

---
 README.md         | 18 ++++++++++++++++--
 bin/backup-script | 14 ++++++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index db48806..6aa6026 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,19 @@ For example:
 - `/etc/backups-script.d/clientXY.example.com`: configuration for host 2
 
 
+### Global Settings
+
+The following global configuration options exist:
+
+- `setup_exec`: Script to run _before_ creating the lock file etc.
+- `pre_exec`: Pre-execution script, run before all jobs.
+- `post_exec`: Post-execution script, run after all jobs.
+
+In Addition, all job configuration options (see below) that have a "default_XXX"
+variant can be used and define default values for all jobs that don't overwrite
+them individually.
+
+
 ## Configuration Variables
 
 ### system
@@ -210,8 +223,9 @@ Optional script to execute after `rsync` exited. Default: none.
 
 ### Compatibility Variables
 
-The following configurations variables used by the backup-pull(1) script in job
-definition files are automatically mapped to the new backup-script variables:
+The following job configurations variables used by the outdated backup-pull(1)
+script in job definition files are automatically mapped to the new backup-script
+variables:
 
 * host -> system
 * source -> source_root
diff --git a/bin/backup-script b/bin/backup-script
index b2a9b03..0457268 100755
--- a/bin/backup-script
+++ b/bin/backup-script
@@ -31,6 +31,7 @@ destinations=""
 [ -d "/usr/local/etc/backup-script.d" ] \
 	&& conf_d="/usr/local/etc/backup-script.d" \
 	|| conf_d="/etc/backup-script.d"
+setup_exec=""
 pre_exec=""
 post_exec=""
 default_backup_type="rsync"
@@ -343,6 +344,19 @@ else
 	sys=("${conf_d}/"*)
 fi
 
+if [ -n "$setup_exec" ]; then
+	echo "Executing \"$setup_exec\" ..."
+	sh -c $setup_exec
+	if [ $? -ne 0 ]; then
+		echo "Error: setup command failed!"; echo
+		CleanUp
+		echo "Aborting backup."; echo
+		exit 5
+	fi
+	sleep 2
+	echo
+fi
+
 # check and create PID file
 if [ -e "$PIDFILE" ]; then
 	echo "Lockfile \"$PIDFILE\" already exists."
-- 
2.39.2