Make init flavor configurable

Currently supported are Upstart and System-V.

CMakeLists.txt

@@ -4,6 +4,21 @@ project(postsrsd C)
 find_program(HELP2MAN help2man DOC "path to help2man executable")
 find_program(DD dd DOC "path to dd executable")
 find_program(BASE64 base64 DOC "path to base64 executable")
+find_program(INSSERV insserv DOC "path to insserv executable")
+
+if(NOT DEFINED INIT_FLAVOR)
+    if(IS_DIRECTORY "/etc/init" AND EXISTS "/lib/init/upstart-job")
+        message(STATUS "Detected init flavor: upstart")
+        set(INIT_FLAVOR "upstart" CACHE STRING "Init daemon of this system")
+    elseif(IS_DIRECTORY "/etc/init.d")
+        message(STATUS "Detected init flavor: sysv")
+        set(INIT_FLAVOR "sysv" CACHE STRING "Init daemon of this system")
+    else()
+        message(STATUS "Detected init flavor: none")
+        message(STATUS "System startup files will not be installed")
+        set(INIT_FLAVOR "" CACHE STRING "Init daemon of this system")
+    endif()
+endif()
 
 add_executable(${PROJECT_NAME} postsrsd.c sha1.c srs2.c)
 
@@ -11,11 +26,12 @@ get_target_property(POSTSRSD ${PROJECT_NAME} LOCATION)
 get_filename_component(POSTSRSD ${POSTSRSD} NAME_WE)
 
 configure_file(${PROJECT_NAME}.init.in ${PROJECT_NAME}.init @ONLY)
+configure_file(${PROJECT_NAME}.upstart.in ${PROJECT_NAME}.upstart @ONLY)
 configure_file(postinstall.cmake.in postinstall.cmake @ONLY)
 
 if(HELP2MAN)
 add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
-	COMMAND ${HELP2MAN} ARGS -s8 -o${PROJECT_NAME}.8 -N -h-h -v-v ./${PROJECT_NAME}
+	COMMAND ${HELP2MAN} ARGS -s8 -o${PROJECT_NAME}.8 -N -h-h -v-v ${CMAKE_CURRENT_BINARY_DIR}/${POSTSRSD}
 	VERBATIM
 )
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.8 DESTINATION "share/man/man8")
@@ -23,6 +39,5 @@ endif()
 
 install(TARGETS ${PROJECT_NAME} DESTINATION "sbin")
 install(FILES README.md main.cf.ex DESTINATION "share/doc/${PROJECT_NAME}")
-install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.init DESTINATION "/etc/init.d" RENAME ${PROJECT_NAME})
 install(SCRIPT "${CMAKE_CURRENT_BINARY_DIR}/postinstall.cmake")
 

postinstall.cmake.in

@@ -1,31 +1,24 @@
-message(STATUS "Updating RC: $ENV{DESTDIR}/etc/init.d/@PROJECT_NAME@")
-file(MAKE_DIRECTORY 
-	"$ENV{DESTDIR}/etc/rc0.d" 
-	"$ENV{DESTDIR}/etc/rc1.d" 
-	"$ENV{DESTDIR}/etc/rc2.d" 
-	"$ENV{DESTDIR}/etc/rc3.d" 
-	"$ENV{DESTDIR}/etc/rc4.d" 
-	"$ENV{DESTDIR}/etc/rc5.d" 
-	"$ENV{DESTDIR}/etc/rc6.d" 
-)
-execute_process(
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc0.d/K20@PROJECT_NAME@
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc1.d/K20@PROJECT_NAME@
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc2.d/S20@PROJECT_NAME@
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc3.d/S20@PROJECT_NAME@
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc4.d/S20@PROJECT_NAME@
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc5.d/S20@PROJECT_NAME@
-	COMMAND ln -sf ../init.d/@PROJECT_NAME@ rc6.d/K20@PROJECT_NAME@
-	WORKING_DIRECTORY "$ENV{DESTDIR}/etc"
-)
-if(NOT EXISTS "$ENV{DESTDIR}/etc/default/@PROJECT_NAME@")
-	file(INSTALL "@CMAKE_CURRENT_SOURCE_DIR@/@PROJECT_NAME@.default" DESTINATION "/etc/default" RENAME "@PROJECT_NAME@")
-else()
-	message(STATUS "Keeping old version: $ENV{DESTDIR}/etc/default/@PROJECT_NAME@")
-endif()
+set(INIT_FLAVOR "@INIT_FLAVOR@")
 set(SECRET_FILE "@PROJECT_NAME@.secret")
 set(DD "@DD@")
 set(BASE64 "@BASE64@")
+set(INSSERV "@INSSERV@")
+
+if(INIT_FLAVOR AND NOT EXISTS "$ENV{DESTDIR}/etc/default/@PROJECT_NAME@")
+	file(INSTALL "@CMAKE_CURRENT_SOURCE_DIR@/@PROJECT_NAME@.default" DESTINATION "/etc/default" RENAME "@PROJECT_NAME@")
+endif()
+
+if(INIT_FLAVOR STREQUAL "sysv")
+	file(INSTALL "@CMAKE_CURRENT_BINARY_DIR@/@PROJECT_NAME@.init" TYPE PROGRAM DESTINATION "/etc/init.d" RENAME "@PROJECT_NAME@")
+	if(INSSERV)
+		execute_process(
+			COMMAND ${INSSERV} -p "$ENV{DESTDIR}/etc/init.d" @PROJECT_NAME@
+		)
+	endif()
+elseif(INIT_FLAVOR STREQUAL "upstart")
+	file(INSTALL "@CMAKE_CURRENT_BINARY_DIR@/@PROJECT_NAME@.upstart" DESTINATION "/etc/init" RENAME "@PROJECT_NAME@.conf")
+endif()
+
 if(DD AND BASE64 AND EXISTS "/dev/urandom" AND NOT EXISTS "$ENV{DESTDIR}/etc/${SECRET_FILE}")
 	message(STATUS "Generating secret key")
 	execute_process(
@@ -38,4 +31,3 @@ if(DD AND BASE64 AND EXISTS "/dev/urandom" AND NOT EXISTS "$ENV{DESTDIR}/etc/${S
 file(INSTALL "@CMAKE_CURRENT_BINARY_DIR@/${SECRET_FILE}" DESTINATION "/etc" FILE_PERMISSIONS OWNER_READ OWNER_WRITE)
 file(REMOVE "@CMAKE_CURRENT_BINARY_DIR@/${SECRET_FILE}")
 endif()
-

postsrsd.upstart.in

@@ -0,0 +1,20 @@
+description "Postfix Sender Rewriting Scheme daemon"
+author "Timo Röhling <timo.roehling@gmx.de>"
+
+start on (filesystem and net-device-up)
+stop on runlevel [!2345]
+respawn
+
+env DEFAULTFILE=/etc/default/@PROJECT_NAME@
+
+script
+	SRS_DOMAIN=`postconf -h mydomain || true`
+	SRS_FORWARD_PORT=10001
+	SRS_REVERSE_PORT=10002
+	SRS_SECRET=/etc/@PROJECT_NAME@.secret
+	RUN_AS=nobody
+	if [ -r "$DEFAULTFILE" ]; then
+		. "$DEFAULTFILE"
+	fi
+	exec @CMAKE_INSTALL_PREFIX@/sbin/@POSTSRSD@ -4 -f$SRS_FORWARD_PORT -r$SRS_REVERSE_PORT -d$SRS_DOMAIN -s$SRS_SECRET -u$RUN_AS
+end script