Autogenerate lockfiles based on BORG_REPO

src/borgwrapper.sh

@@ -171,8 +171,8 @@ exit_clean () {
 
 # Default parameters
 CONFIG="/etc/borgwrapper/config.sh"
-LOCKFILE="/var/lock/borgwrapper.lock"
 BORG="/usr/bin/borg"
+LOCKDIR="/run/lock/borgwrapper"
 PRE_BACKUP_CMD=()
 POST_BACKUP_CMD=()
 POST_VERIFY_CMD=()
@@ -198,6 +198,9 @@ echo "Loading config from ${CONFIG}"
 source "${CONFIG}" || exit 1
 export BORG_PASSPHRASE
 
+LOCKFILE="${LOCKDIR}/$(echo -n "${BORG_REPO}" | md5sum | cut -d ' ' -f 1).lock"
+mkdir -p "${LOCKDIR}"
+
 (
     # Ensure this is the only instance running
     flock -n 9 || lock_failed
@@ -237,4 +240,4 @@ export BORG_PASSPHRASE
     fi
 
     exit_clean 0
-) 9>${LOCKFILE}
+) 9>"${LOCKFILE}"

src/config.sh.example

@@ -27,9 +27,8 @@ KEEP_YEARLY=5
 # You can use K, M, G or T binary prefixes (power of 1024), e.g., 5M = 5MiB/s = 5242880 bytes/s.
 #BWLIMIT=0
 
-# Change this if you need to have multiple borgwrapper instances running
-# using different configs.
-#LOCKFILE="/var/lock/borgwrapper.lock"
+# Location of borgwrapper lock files
+#LOCKDIR="/run/lock/borgwrapper"
 
 # Command to execute before backup, e.g., taking a ZFS snapshot. Must return successfully
 # for backup to start. POST_BACKUP_CMD is executed even if this fails.