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authorDouglas Gregor <dgregor@apple.com>2013-03-25 23:14:19 +0000
committerDouglas Gregor <dgregor@apple.com>2013-03-25 23:14:19 +0000
commit79f1dfa1f3573e0b48a5e66d8d9d58df2a7bd2c5 (patch)
treec66a6d0f38cf612b92c9f116d2bca2626f913446 /cmake/modules/GetSVN.cmake
parent68d832a04dc87ec9bff72e325d81da2a806452b9 (diff)
Introduce a tiny CMake project to gather Subversion revision information and place it into a header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177938 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake/modules/GetSVN.cmake')
-rw-r--r--cmake/modules/GetSVN.cmake25
1 files changed, 25 insertions, 0 deletions
diff --git a/cmake/modules/GetSVN.cmake b/cmake/modules/GetSVN.cmake
new file mode 100644
index 0000000000..acccc12a94
--- /dev/null
+++ b/cmake/modules/GetSVN.cmake
@@ -0,0 +1,25 @@
+# CMake project that writes Subversion revision information to a header.
+#
+# Input variables:
+# FIRST_SOURCE_DIR - First source directory
+# FIRST_REPOSITORY - The macro to define to the first revision number.
+# SECOND_SOURCE_DIR - Second source directory
+# SECOND_REPOSITORY - The macro to define to the second revision number.
+# HEADER_FILE - The header file to write
+include(FindSubversion)
+if (Subversion_FOUND AND EXISTS "${FIRST_SOURCE_DIR}/.svn")
+ # Repository information for the first repository.
+ Subversion_WC_INFO(${FIRST_SOURCE_DIR} MY)
+ file(WRITE ${HEADER_FILE}.txt "#define ${FIRST_REPOSITORY} \"${MY_WC_REVISION}\"\n")
+
+ # Repository information for the second repository.
+ if (EXISTS "${SECOND_SOURCE_DIR}/.svn")
+ Subversion_WC_INFO(${SECOND_SOURCE_DIR} MY)
+ file(APPEND ${HEADER_FILE}.txt
+ "#define ${SECOND_REPOSITORY} \"${MY_WC_REVISION}\"\n")
+ endif ()
+
+ # Copy the file only if it has changed.
+ execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
+ ${HEADER_FILE}.txt ${HEADER_FILE})
+endif()