From fb5552b88f3731576735edacd23dc3838d904493 Mon Sep 17 00:00:00 2001
From: Matt Molyneaux <moggers87+git@moggers87.co.uk>
Date: Sun, 26 Sep 2021 23:43:59 +0100
Subject: [PATCH] Unit files for systemd

---
 .gitignore                    |  2 ++
 Makefile                      | 30 +++++++++++++++++++++---------
 backup.timer                  | 12 ++++++++++++
 templates/backup.service      | 19 +++++++++++++++++++
 templates/clean-cache.service | 18 ++++++++++++++++++
 5 files changed, 72 insertions(+), 9 deletions(-)
 create mode 100644 .gitignore
 rewrite Makefile (82%)
 create mode 100644 backup.timer
 create mode 100644 templates/backup.service
 create mode 100644 templates/clean-cache.service

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..139fdba
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/backup.service
+/clean-cache.service
diff --git a/Makefile b/Makefile
dissimilarity index 82%
index b82e1a6..c7fdf54 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,21 @@
-sources = $(shell find . -name \*.sh -type f)
-prefix ?= /usr/local
-
-.PHONY: all
-all: $(sources)
-
-.PHONY: install
-install: $(sources)
-	install -t $(prefix)/bin $(sources)
+scripts = $(shell find . -maxdepth 1 -name \*.sh -type f)
+templates = $(shell find templates -maxdepth 1 -type f -printf "%f\n")
+units = $(shell find -maxdepth 1 -name \*.service -or -name \*.timer)
+export prefix ?= /usr/local
+
+define TEMPLATE_RULE
+$(1): $(2)
+	cat $(2) | envsubst > $(1)
+endef
+
+.PHONY: all
+all: $(templates)
+
+.PHONY: install
+install: $(scripts) $(units)
+	install -D -t $(prefix)/bin $(scripts)
+	install -D -t $(prefix)/lib/systemd/system $(units)
+	install -D -t $(prefix)/lib/systemd/user $(units)
+
+
+$(foreach _tmpl,$(templates),$(eval $(call TEMPLATE_RULE,$(_tmpl),templates/$(_tmpl))))
diff --git a/backup.timer b/backup.timer
new file mode 100644
index 0000000..c544b7a
--- /dev/null
+++ b/backup.timer
@@ -0,0 +1,12 @@
+[Unit]
+Description=Backup with restic
+Requires=backup.service
+
+[Timer]
+Unit=backup.service
+OnCalendar=hourly
+Persistent=true
+RandomizedDelaySec=900
+
+[Install]
+WantedBy=timers.target
diff --git a/templates/backup.service b/templates/backup.service
new file mode 100644
index 0000000..b91d81d
--- /dev/null
+++ b/templates/backup.service
@@ -0,0 +1,19 @@
+[Unit]
+Description=Backup with restic
+Wants=backup.timer
+StartLimitInterval=200
+StartLimitBurst=5
+
+[Service]
+Nice=19
+IOSchedulingClass=idle
+IOSchedulingPriority=7
+Type=oneshot
+ExecStart=${prefix}/bin/backup.sh backup
+Environment=BACKUP_CONFIG=/etc/moggers87/backuprc
+Environment=HOME=/etc/moggers87
+Restart=on-failure
+RestartSec=30
+
+[Install]
+WantedBy=multi-user.target
diff --git a/templates/clean-cache.service b/templates/clean-cache.service
new file mode 100644
index 0000000..f6be8b5
--- /dev/null
+++ b/templates/clean-cache.service
@@ -0,0 +1,18 @@
+[Unit]
+Description=Clean cache in user home
+Wants=clean-cache.timer
+StartLimitInterval=200
+StartLimitBurst=5
+
+[Service]
+Nice=19
+IOSchedulingClass=idle
+IOSchedulingPriority=7
+Type=oneshot
+ExecStart=${prefix}/bin/clean-cache.sh clean
+Environment=HOME=%h
+Restart=on-failure
+RestartSec=30
+
+[Install]
+WantedBy=multi-user.target
-- 
2.11.4.GIT