Add systemd unit files for location-downloader

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

.gitignore

@@ -14,5 +14,7 @@ Makefile.in
 /stamp-h1
 /src/python/location-downloader
 /src/python/location-query
+/src/systemd/location-downloader.service
+/src/systemd/location-downloader.timer
 /test.db
 /testdata.db

Makefile.am

 EXTRA_DIST =
 CLEANFILES =
+INSTALL_DIRS =
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 AM_MAKEFLAGS = --no-print-directory
 
@@ -36,11 +37,15 @@ LIBLOC_CURRENT=0
 LIBLOC_REVISION=0
 LIBLOC_AGE=0
 
+DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
+
 SED_PROCESS = \
 	$(AM_V_GEN)$(MKDIR_P) $(dir $@) && $(SED) \
 	-e 's,@VERSION\@,$(VERSION),g' \
 	-e 's,@prefix\@,$(prefix),g' \
 	-e 's,@exec_prefix\@,$(exec_prefix),g' \
+	-e 's,@bindir\@,$(bindir),g' \
 	-e 's,@libdir\@,$(libdir),g' \
 	-e 's,@includedir\@,$(includedir),g' \
 	-e 's,@databasedir\@,$(databasedir),g' \
@@ -220,6 +225,23 @@ EXTRA_DIST += \
 CLEANFILES += \
 	src/python/location-downloader \
 	src/python/location-query
+# ------------------------------------------------------------------------------
+
+if HAVE_SYSTEMD
+systemdsystemunit_DATA = \
+	src/systemd/location-downloader.service \
+	src/systemd/location-downloader.timer
+
+CLEANFILES += \
+	$(systemdsystemunit_DATA)
+
+INSTALL_DIRS += \
+	$(systemdsystemunitdir)
+endif
+
+EXTRA_DIST += \
+	src/systemd/location-downloader.service.in \
+	src/systemd/location-downloader.timer.in
 
 # ------------------------------------------------------------------------------
 

configure.ac

@@ -96,6 +96,42 @@ my_CFLAGS="\
 "
 AC_SUBST([my_CFLAGS])
 
+# ------------------------------------------------------------------------------
+
+AC_ARG_WITH([systemd],
+	AS_HELP_STRING([--with-systemd], [Enable systemd support.])
+)
+
+AS_IF([test "x$with_systemd" != "xno"],
+      [PKG_CHECK_MODULES(systemd, [libsystemd],
+      [have_systemd=yes], [have_systemd=no])],
+      [have_systemd=no]
+)
+
+AS_IF([test "x$have_systemd" = "xyes"],
+      [AC_MSG_CHECKING([for systemd system unit directory])
+	AC_ARG_WITH([systemdsystemunitdir],
+		AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]),
+		[], [with_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)]
+	)
+
+	AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
+
+	if test -n "$systemdsystemunitdir" -a "x$systemdsystemunitdir" != xno; then
+		AC_MSG_RESULT([$systemdsystemunitdir])
+	else
+		AC_MSG_ERROR([not found (try --with-systemdsystemunitdir)])
+	fi
+      ],
+      [AS_IF([test "x$with_systemd" = "xyes"],
+             [AC_MSG_ERROR([Systemd support is enabled but no systemd has been found.])
+      ])
+])
+
+AM_CONDITIONAL(HAVE_SYSTEMD, [test "x$have_systemd" = "xyes"])
+
+# ------------------------------------------------------------------------------
+
 # Python
 AM_PATH_PYTHON([3.4])
 PKG_CHECK_MODULES([PYTHON], [python-${PYTHON_VERSION}])
@@ -130,6 +166,7 @@ AC_MSG_RESULT([
         ldflags:                ${LDFLAGS}
 
         debug:                  ${enable_debug}
+        systemd support:        ${have_systemd}
 
 	Bindings:
 	  perl:			${enable_perl}

src/systemd/location-downloader.service.in

+[Unit]
+Description=Automatic Location Database Updater
+Requires=network.target
+
+[Service]
+Type=oneshot
+ExecStart=@bindir@/location-downloader update

src/systemd/location-downloader.timer.in

+[Unit]
+Description=Update location database once a day
+
+[Timer]
+OnCalendar=daily
+RandomizedDelaySec=24h
+
+[Install]
+WantedBy=timers.target