From dce9e0a0f8461c42966d62975b5372406d6105cf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Asbj=C3=B8rn=20Apeland?= <aude@users.noreply.github.com>
Date: Thu, 30 Jun 2016 00:20:56 +0200
Subject: [PATCH] Makefile: support .in files

---
 Makefile                                         | 16 +++++++++++++++-
 .../systemd/{btrbk.service => btrbk.service.in}  |  2 +-
 contrib/systemd/{btrbk.timer => btrbk.timer.in}  |  0
 3 files changed, 16 insertions(+), 2 deletions(-)
 rename contrib/systemd/{btrbk.service => btrbk.service.in} (65%)
 rename contrib/systemd/{btrbk.timer => btrbk.timer.in} (100%)

diff --git a/Makefile b/Makefile
index 711565f..b0c91d1 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,17 @@ SYSTEMDDIR = $(PREFIX)/lib/systemd/system
 MAN1DIR    = $(PREFIX)/share/man/man1
 MAN5DIR    = $(PREFIX)/share/man/man5
 
+process = sed \
+	-e "s|@PN@|$(PN)|g" \
+	-e "s|@CONFDIR@|$(CONFDIR)|g" \
+	-e "s|@CRONDIR@|$(CRONDIR)|g" \
+	-e "s|@BINDIR@|$(BINDIR)|g" \
+	-e "s|@DOCDIR@|$(DOCDIR)|g" \
+	-e "s|@SCRIPTDIR@|$(SCRIPTDIR)|g" \
+	-e "s|@SYSTEMDDIR@|$(SYSTEMDDIR)|g" \
+	-e "s|@MAN1DIR@|$(MAN1DIR)|g" \
+	-e "s|@MAN5DIR@|$(MAN5DIR)|g"
+
 all:
 	@echo 'nothing to do for "all"'
 
@@ -20,9 +31,12 @@ install-bin:
 
 install-systemd:
 	@echo 'installing systemd service units...'
+	$(process) contrib/systemd/btrbk.service.in > contrib/systemd/btrbk.service
+	$(process) contrib/systemd/btrbk.timer.in > contrib/systemd/btrbk.timer
 	install -Dm644 contrib/systemd/btrbk.service "$(DESTDIR)$(SYSTEMDDIR)/btrbk.service"
 	install -Dm644 contrib/systemd/btrbk.timer "$(DESTDIR)$(SYSTEMDDIR)/btrbk.timer"
-	sed -i -e "s#/usr/sbin/btrbk#$(BINDIR)/btrbk#g" "$(DESTDIR)$(SYSTEMDDIR)/btrbk.service"
+	rm contrib/systemd/btrbk.service
+	rm contrib/systemd/btrbk.timer
 
 install-share:
 	@echo 'installing auxiliary scripts...'
diff --git a/contrib/systemd/btrbk.service b/contrib/systemd/btrbk.service.in
similarity index 65%
rename from contrib/systemd/btrbk.service
rename to contrib/systemd/btrbk.service.in
index 3723470..bc8b769 100644
--- a/contrib/systemd/btrbk.service
+++ b/contrib/systemd/btrbk.service.in
@@ -3,4 +3,4 @@ Description=btrbk backup
 
 [Service]
 Type=oneshot
-ExecStart=/usr/sbin/btrbk run
+ExecStart=@BINDIR@/btrbk run
diff --git a/contrib/systemd/btrbk.timer b/contrib/systemd/btrbk.timer.in
similarity index 100%
rename from contrib/systemd/btrbk.timer
rename to contrib/systemd/btrbk.timer.in