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# CMake project that writes Subversion revision information to a header.
#
# Input variables:
# FIRST_SOURCE_DIR - First source directory
# 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
#
# 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")
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