Merge pull request #54 from dartsim/cmake_uninstall_target

Add cmake uninstall target

.travis.yml

@@ -36,6 +36,7 @@ script:
   # Run unit tests
   - make test
 
-  # Make sure we can install with no issues
+  # Make sure we can install and uninstall with no issues
   - sudo make -j4 install
+  - sudo make -j4 uninstall
 

CMakeLists.txt

@@ -145,6 +145,13 @@ install(DIRECTORY include/ DESTINATION include
 
 install(FILES "${pkg_conf_file_out}" DESTINATION lib/pkgconfig/ COMPONENT pkgconfig)
 
+# Add uninstall target
+configure_file(
+  "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules/cmake_uninstall.cmake.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/CMakeModules/cmake_uninstall.cmake"
+  IMMEDIATE @ONLY)
+add_custom_target(uninstall
+  "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/CMakeModules/cmake_uninstall.cmake")
 
 enable_testing()
 add_subdirectory(test)

CMakeModules/cmake_uninstall.cmake.in

+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}")
+    execute_process(
+      COMMAND @CMAKE_COMMAND@ -E remove "$ENV{DESTDIR}${file}"
+      OUTPUT_VARIABLE rm_out
+      RESULT_VARIABLE 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)