cmake: break out the ugly split sources fn
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6bfcdd3..10d1280 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,6 +32,7 @@
INCLUDE(AddCFlagIfSupported)
INCLUDE(FindPkgConfig)
INCLUDE(FindStatNsec)
+INCLUDE(IdeSplitSources)
# Build options
#
diff --git a/cmake/Modules/IdeSplitSources.cmake b/cmake/Modules/IdeSplitSources.cmake
new file mode 100644
index 0000000..3a4a531
--- /dev/null
+++ b/cmake/Modules/IdeSplitSources.cmake
@@ -0,0 +1,22 @@
+# This function splits the sources files up into their appropriate
+# subdirectories. This is especially useful for IDEs like Xcode and
+# Visual Studio, so that you can navigate into the git2_tests project,
+# and see the folders within the tests folder (instead of just seeing all
+# source and tests in a single folder.)
+FUNCTION(IDE_SPLIT_SOURCES target)
+ IF(MSVC_IDE OR CMAKE_GENERATOR STREQUAL Xcode)
+ GET_TARGET_PROPERTY(sources ${target} SOURCES)
+ FOREACH(source ${sources})
+ IF(source MATCHES ".*/")
+ STRING(REPLACE ${CMAKE_CURRENT_SOURCE_DIR}/ "" rel ${source})
+ IF(rel)
+ STRING(REGEX REPLACE "/([^/]*)$" "" rel ${rel})
+ IF(rel)
+ STRING(REPLACE "/" "\\\\" rel ${rel})
+ SOURCE_GROUP(${rel} FILES ${source})
+ ENDIF()
+ ENDIF()
+ ENDIF()
+ ENDFOREACH()
+ ENDIF()
+ENDFUNCTION()
