From 1e91b2fac8135a37509d9e8129494a639674e7c6 Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Mon, 22 May 2023 15:45:24 -0400
Subject: poll with timer just to instantiate timers, ugh!

This makes everything work through systemd though.

The user can simply drop config files into
/etc/btrfs-backup/remotes/<name>.json and timers will automatically be
created to handle syncing.
---
 Makefile           |  8 +++++++-
 push-btrfs.path    |  6 ++++++
 push-btrfs.service | 10 ++++++++++
 push-btrfs.timer   |  5 +++++
 4 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 push-btrfs.path
 create mode 100644 push-btrfs.service
 create mode 100644 push-btrfs.timer

diff --git a/Makefile b/Makefile
index ac0ab02..0dd9c7e 100644
--- a/Makefile
+++ b/Makefile
@@ -5,8 +5,14 @@ ifeq ($(remotes),)
 $(error You must put at least one *.json configuration file into <file:///$(config_dir)>).
 endif
 
+unit_files = push-btrfs.path push-btrfs.service push-btrfs.timer push-btrfs@.service push-btrfs@.timer
+
+enable_unit = push-btrfs.timer
+
 install:
-	for remote in $(remotes); do systemctl enable push-btrfs@$$remote.service; systemctl enable --now push-btrfs@$$remote.timer; done
+	systemctl link $(addprefix ./, $(unit_files))
+	systemctl reset-failed $(enable_unit)
+	systemctl enable --now $(enable_unit)
 
 go:
 	for remote in $(remotes); do bash$(if $(verbose), -x) push-btrfs $$remote$(if $(verbose),;, &) done; wait
diff --git a/push-btrfs.path b/push-btrfs.path
new file mode 100644
index 0000000..1767b1f
--- /dev/null
+++ b/push-btrfs.path
@@ -0,0 +1,6 @@
+[Path]
+PathExistsGlob=/etc/btrfs-backup/remotes/*.json
+PathChanged=/etc/btrfs-backup/remotes
+
+[Install]
+WantedBy=default.target
diff --git a/push-btrfs.service b/push-btrfs.service
new file mode 100644
index 0000000..ec9d3cd
--- /dev/null
+++ b/push-btrfs.service
@@ -0,0 +1,10 @@
+[Unit]
+Description = Btrfs Backup over SSH
+ConditionUser = root
+
+[Service]
+WorkingDirectory = /etc/btrfs-backup/remotes
+ExecStart = bash -c 'shopt -s nullglob; for f in *.json; do (set -x; systemctl enable push-btrfs@$$f.timer); done'
+
+[Install]
+WantedBy=default.target
diff --git a/push-btrfs.timer b/push-btrfs.timer
new file mode 100644
index 0000000..982df5c
--- /dev/null
+++ b/push-btrfs.timer
@@ -0,0 +1,5 @@
+[Timer]
+OnUnitInactiveSec=5
+
+[Install]
+WantedBy=default.target
-- 
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