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Remove SVN logic from find_first_existing_vc_file

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As LLVM has moved from SVN to git, there is no need to
keep SVN related code. Also, this code piece was never used.

Differential Revision: https://reviews.llvm.org/D79400
This commit is contained in:
Pushpinder Singh 2020-05-29 05:39:43 -04:00 committed by Sameer Sahasrabuddhe
parent 760d781e95
commit 339fbbae32
1 changed files with 19 additions and 32 deletions
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51
cmake/modules/AddLLVM.cmake
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@ -2094,40 +2094,27 @@ function(find_first_existing_vc_file path out_var)
if(NOT EXISTS "${path}")
return()
endif()
if(EXISTS "${path}/.svn")
set(svn_files
"${path}/.svn/wc.db" # SVN 1.7
"${path}/.svn/entries" # SVN 1.6
)
foreach(file IN LISTS svn_files)
if(EXISTS "${file}")
set(${out_var} "${file}" PARENT_SCOPE)
return()
endif()
endforeach()
else()
find_package(Git)
if(GIT_FOUND)
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --git-dir
WORKING_DIRECTORY ${path}
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_output
ERROR_QUIET)
if(git_result EQUAL 0)
string(STRIP "${git_output}" git_output)
get_filename_component(git_dir ${git_output} ABSOLUTE BASE_DIR ${path})
# Some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD
if (NOT EXISTS "${git_dir}/logs/HEAD")
execute_process(COMMAND ${CMAKE_COMMAND} -E touch HEAD
WORKING_DIRECTORY "${git_dir}/logs"
RESULT_VARIABLE touch_head_result
ERROR_QUIET)
if (NOT touch_head_result EQUAL 0)
return()
endif()
find_package(Git)
if(GIT_FOUND)
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --git-dir
WORKING_DIRECTORY ${path}
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_output
ERROR_QUIET)
if(git_result EQUAL 0)
string(STRIP "${git_output}" git_output)
get_filename_component(git_dir ${git_output} ABSOLUTE BASE_DIR ${path})
# Some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD
if (NOT EXISTS "${git_dir}/logs/HEAD")
execute_process(COMMAND ${CMAKE_COMMAND} -E touch HEAD
WORKING_DIRECTORY "${git_dir}/logs"
RESULT_VARIABLE touch_head_result
ERROR_QUIET)
if (NOT touch_head_result EQUAL 0)
return()
endif()
set(${out_var} "${git_dir}/logs/HEAD" PARENT_SCOPE)
endif()
set(${out_var} "${git_dir}/logs/HEAD" PARENT_SCOPE)
endif()
endif()
endfunction()