#
# 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.
+# FIRST_NAME - The macro prefix for the first repository's info
+# SECOND_SOURCE_DIR - Second source directory (opt)
+# SECOND_NAME - The macro prefix for the second repository's info (opt)
# 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 ${HEADER_FILE})
+#
+# The output header will contain macros FIRST_REPOSITORY and FIRST_REVISION,
+# and SECOND_REPOSITORY and SECOND_REVISION if requested, where "FIRST" and
+# "SECOND" are substituted with the names specified in the input variables.
+
+# Chop off cmake/modules/GetSVN.cmake
+get_filename_component(LLVM_DIR "${CMAKE_SCRIPT_MODE_FILE}" PATH)
+get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH)
+get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH)
+
+# Handle strange terminals
+set(ENV{TERM} "dumb")
+
+macro(get_source_info_svn path revision repository)
+ # If svn is a bat file, find_program(Subversion) doesn't find it.
+ # Explicitly search for that here; Subversion_SVN_EXECUTABLE will override
+ # the find_program call in FindSubversion.cmake.
+ find_program(Subversion_SVN_EXECUTABLE NAMES svn svn.bat)
+
+ # FindSubversion does not work with symlinks. See PR 8437
+ if (NOT IS_SYMLINK "${path}")
+ find_package(Subversion)
+ endif()
+ if (Subversion_FOUND)
+ subversion_wc_info( ${path} Project )
+ if (Project_WC_REVISION)
+ set(${revision} ${Project_WC_REVISION} PARENT_SCOPE)
+ endif()
+ if (Project_WC_URL)
+ set(${repository} ${Project_WC_URL} PARENT_SCOPE)
+ endif()
+ endif()
+endmacro()
+
+macro(get_source_info_git_svn path revision repository)
+ find_program(git_executable NAMES git git.exe git.cmd)
+ if (git_executable)
+ execute_process(COMMAND ${git_executable} svn info
+ WORKING_DIRECTORY ${path}
+ TIMEOUT 5
+ RESULT_VARIABLE git_result
+ OUTPUT_VARIABLE git_output)
+ if (git_result EQUAL 0)
+ string(REGEX REPLACE "^(.*\n)?Revision: ([^\n]+).*"
+ "\\2" git_svn_rev "${git_output}")
+ set(${revision} ${git_svn_rev} PARENT_SCOPE)
+ string(REGEX REPLACE "^(.*\n)?URL: ([^\n]+).*"
+ "\\2" git_url "${git_output}")
+ set(${repository} ${git_url} PARENT_SCOPE)
+ endif()
+ endif()
+endmacro()
+
+macro(get_source_info_git path revision repository)
+ find_program(git_executable NAMES git git.exe git.cmd)
+ if (git_executable)
+ execute_process(COMMAND ${git_executable} log -1 --pretty=format:%H
+ WORKING_DIRECTORY ${path}
+ TIMEOUT 5
+ RESULT_VARIABLE git_result
+ OUTPUT_VARIABLE git_output)
+ if (git_result EQUAL 0)
+ set(${revision} ${git_output} PARENT_SCOPE)
+ endif()
+ execute_process(COMMAND ${git_executable} remote -v
+ WORKING_DIRECTORY ${path}
+ TIMEOUT 5
+ RESULT_VARIABLE git_result
+ OUTPUT_VARIABLE git_output)
+ if (git_result EQUAL 0)
+ string(REGEX REPLACE "^(.*\n)?[^ \t]+[ \t]+([^ \t\n]+)[ \t]+\\(fetch\\).*"
+ "\\2" git_url "${git_output}")
+ set(${repository} "${git_url}" PARENT_SCOPE)
+ endif()
+ endif()
+endmacro()
+
+function(get_source_info path revision repository)
+ if (EXISTS "${path}/.svn")
+ get_source_info_svn("${path}" revision repository)
+ elseif (EXISTS "${path}/.git/svn")
+ get_source_info_git_svn("${path}" revision repository)
+ elseif (EXISTS "${path}/.git")
+ get_source_info_git("${path}" revision repository)
+ endif()
+endfunction()
+
+function(append_info name path)
+ get_source_info("${path}" revision repository)
+ string(STRIP "${revision}" revision)
+ string(STRIP "${repository}" repository)
+ file(APPEND "${HEADER_FILE}.txt"
+ "#define ${name}_REVISION \"${revision}\"\n")
+ file(APPEND "${HEADER_FILE}.txt"
+ "#define ${name}_REPOSITORY \"${repository}\"\n")
+endfunction()
+
+append_info(${FIRST_NAME} "${FIRST_SOURCE_DIR}")
+if(DEFINED SECOND_SOURCE_DIR)
+ append_info(${SECOND_NAME} "${SECOND_SOURCE_DIR}")
endif()
+
+# Copy the file only if it has changed.
+execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
+ "${HEADER_FILE}.txt" "${HEADER_FILE}")
+file(REMOVE "${HEADER_FILE}.txt")
+