2 files changed, 12 insertions, 1 deletions

diff --git a/push-btrfs.service b/push-btrfs.service
index ec9d3cd..7d32080 100644
--- a/push-btrfs.service
+++ b/push-btrfs.service
@@ -1,10 +1,17 @@
 [Unit]
 Description = Btrfs Backup over SSH
 ConditionUser = root
+ConditionPathExistsGlob = /etc/btrfs-backup/remotes/*.json
 
 [Service]
 WorkingDirectory = /etc/btrfs-backup/remotes
-ExecStart = bash -c 'shopt -s nullglob; for f in *.json; do (set -x; systemctl enable push-btrfs@$$f.timer); done'
+ExecStart = bash -e -c 'shopt -s failglob; \
+                        units=(*.json); \
+                        units=($${units[@]/.json/.timer}); \
+                        units=($${units[@]/#/%p@}); \
+                        systemctl enable "$${units[@]}"; \
+                        entr -pnd -- true <<< . || true; \
+                        '
 
 [Install]
 WantedBy=default.target
diff --git a/push-btrfs.timer b/push-btrfs.timer
index 982df5c..4bfb418 100644
--- a/push-btrfs.timer
+++ b/push-btrfs.timer
@@ -1,3 +1,7 @@
+[Unit]
+Description = Btrfs Backup over SSH
+ConditionPathExistsGlob = /etc/btrfs-backup/remotes/*.json
+
 [Timer]
 OnUnitInactiveSec=5