cmake: fixes and added uninstall target

.gitignore

@@ -22,3 +22,4 @@ cmake_install.cmake
 *~
 .project
 .cproject
+build

CMakeLists.txt

@@ -68,21 +68,33 @@ set(mbusd_SOURCES
     src/sock.c
 )
 add_executable(mbusd ${mbusd_SOURCES})
-install(TARGETS mbusd DESTINATION ${CMAKE_INSTALL_FULL_BINDIR}/)
+install(TARGETS mbusd DESTINATION ${CMAKE_INSTALL_BINDIR})
 
 # aggregate the man page template
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/doc/mbusd.8.in mbusd.8)
-install(FILES mbusd.8 DESTINATION ${CMAKE_INSTALL_FULL_MANDIR}/man8/)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/mbusd.8 DESTINATION ${CMAKE_INSTALL_MANDIR}/man8)
 
-# aggregate mbusd@.service from its template
-find_program(HAVE_SYSTEMD NAMES systemd)
-if(HAVE_SYSTEMD)
-    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/systemd-units/mbusd@.service.in  mbusd@.service)
+# install example configuration file
+install(
+  FILES ${CMAKE_CURRENT_SOURCE_DIR}/conf/mbusd.conf.example
+  DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/${CMAKE_PROJECT_NAME}
+)
 
-    install(FILES mbusd@.service DESTINATION /lib/systemd/system/)
-    #TODO install a default ${CMAKE_CURRENT_SOURCE_DIR}/conf/mbusd.conf ??
+# aggregate mbusd@.service from its template
+if(IS_DIRECTORY /usr/lib/systemd/system)
+    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/systemd-units/mbusd@.service.in mbusd@.service)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/mbusd@.service DESTINATION /usr/lib/systemd/system)
 endif()
 
+# uninstall target
+configure_file(
+    ${CMAKE_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in
+    ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
+@ONLY)
+add_custom_target(uninstall
+    ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
+)
+
 # unittest target
 option(TESTS "Enable unittests" OFF)
 if(TESTS)

cmake/cmake_uninstall.cmake.in

@@ -0,0 +1,32 @@
+# http://www.vtk.org/Wiki/CMake_FAQ#Can_I_do_.22make_uninstall.22_with_CMake.3F
+
+IF(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+  MESSAGE(FATAL_ERROR "Cannot find install manifest: \"@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt\"")
+ENDIF(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+
+FILE(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files)
+STRING(REGEX REPLACE "\n" ";" files "${files}")
+FOREACH(file ${files})
+  MESSAGE(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"")
+  IF(EXISTS "$ENV{DESTDIR}${file}")
+    EXEC_PROGRAM(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+      )
+    IF(NOT "${rm_retval}" STREQUAL 0)
+      MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
+    ENDIF(NOT "${rm_retval}" STREQUAL 0)
+  ELSEIF(IS_SYMLINK "$ENV{DESTDIR}${file}")
+    EXEC_PROGRAM(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+      )
+    IF(NOT "${rm_retval}" STREQUAL 0)
+      MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
+    ENDIF(NOT "${rm_retval}" STREQUAL 0)
+  ELSE(EXISTS "$ENV{DESTDIR}${file}")
+    MESSAGE(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.")
+  ENDIF(EXISTS "$ENV{DESTDIR}${file}")
+ENDFOREACH(file)