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-rw-r--r--Source/CMakeVersionSource.cmake37
1 files changed, 37 insertions, 0 deletions
diff --git a/Source/CMakeVersionSource.cmake b/Source/CMakeVersionSource.cmake
new file mode 100644
index 000000000..05e265c03
--- /dev/null
+++ b/Source/CMakeVersionSource.cmake
@@ -0,0 +1,37 @@
+# Try to identify the current development source version.
+set(CMake_VERSION_SOURCE "")
+if(EXISTS ${CMake_SOURCE_DIR}/.git/HEAD)
+ find_program(GIT_EXECUTABLE NAMES git git.cmd)
+ mark_as_advanced(GIT_EXECUTABLE)
+ if(GIT_EXECUTABLE)
+ execute_process(
+ COMMAND ${GIT_EXECUTABLE} rev-parse --verify -q --short=4 HEAD
+ OUTPUT_VARIABLE head
+ OUTPUT_STRIP_TRAILING_WHITESPACE
+ WORKING_DIRECTORY ${CMake_SOURCE_DIR}
+ )
+ if(head)
+ set(CMake_VERSION_SOURCE "g${head}")
+ execute_process(
+ COMMAND ${GIT_EXECUTABLE} update-index -q --refresh
+ WORKING_DIRECTORY ${CMake_SOURCE_DIR}
+ )
+ execute_process(
+ COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD --
+ OUTPUT_VARIABLE dirty
+ OUTPUT_STRIP_TRAILING_WHITESPACE
+ WORKING_DIRECTORY ${CMake_SOURCE_DIR}
+ )
+ if(dirty)
+ set(CMake_VERSION_SOURCE "${CMake_VERSION_SOURCE}-dirty")
+ endif()
+ endif()
+ endif()
+elseif(EXISTS ${CMake_SOURCE_DIR}/CVS/Repository)
+ file(READ ${CMake_SOURCE_DIR}/CVS/Repository repo)
+ set(branch "")
+ if("${repo}" MATCHES "\\.git/")
+ string(REGEX REPLACE ".*\\.git/([^\r\n]*).*" "-\\1" branch "${repo}")
+ endif()
+ set(CMake_VERSION_SOURCE "cvs${branch}")
+endif()