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Fix LLVM githash check failure on buildbots #211

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Fix LLVM githash check failure on buildbots #211

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7 changes: 4 additions & 3 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -140,7 +140,7 @@ function (config_without_llvm)
endfunction ()

function (config_with_llvm)
execute_process(COMMAND sh -c "git -C ${CMAKE_HOME_DIRECTORY}/third_party/llvm-project log -1 --format=%h"
execute_process(COMMAND sh -c "git -C ${CMAKE_HOME_DIRECTORY}/third_party/llvm-project log -1 --format=%H"
RESULT_VARIABLE clang_version_status
OUTPUT_VARIABLE CLANG_VERSION_OUTPUT)

Expand All @@ -149,10 +149,11 @@ function (config_with_llvm)
message(WARNING "Could not get clang commit hash : Use clang git hash " ${CLANG_KNOWN_GIT_COMMIT_HASH})
else()
string(REGEX MATCH "([0-9|a-f]+)" CLANG_GIT_COMMIT_HASH ${CLANG_VERSION_OUTPUT})
if ("${CLANG_GIT_COMMIT_HASH}" STREQUAL ${CLANG_KNOWN_GIT_COMMIT_HASH})
string(SUBSTRING ${CLANG_GIT_COMMIT_HASH} 0 12 CLANG_GIT_COMMIT_HASH_12)
if ("${CLANG_GIT_COMMIT_HASH_12}" STREQUAL ${CLANG_KNOWN_GIT_COMMIT_HASH})
message(STATUS "Found known git commit hash of clang (" ${CLANG_GIT_COMMIT_HASH} ") - Success")
else()
message(FATAL_ERROR "Unverified git commit hash of llvm source - ${CLANG_GIT_COMMIT_HASH}. Do not modify or update third_party/llvm-project")
message(FATAL_ERROR "Unverified git commit hash of llvm source - ${CLANG_GIT_COMMIT_HASH_12}. Do not modify or update third_party/llvm-project")
endif()
endif()

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