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Do not apply patches if sub non-git repo is located in a git repo. #545

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merged 4 commits into from
Jul 9, 2024
Merged

Do not apply patches if sub non-git repo is located in a git repo. #545

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58f0c62
Do not apply patches if sub non-git repo is located in a git repo.
haonanya Jul 5, 2024
75b6941
Add option to control patch apply.
haonanya Jul 8, 2024
01d01e9
Apply suggestions.
haonanya Jul 9, 2024
43b0989
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haonanya Jul 9, 2024
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29 changes: 17 additions & 12 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,10 @@ if(LLVM_USE_HOST_TOOLS AND OPENCL_CLANG_BUILD_EXTERNAL)
llvm_create_cross_target(${PROJECT_NAME} NATIVE "" Release)
endif()

option(LLVMSPIRV_INCLUDED_IN_LLVM
"Set to ON if libLLVMSPIRVLib is linked into libLLVM" ON)
option(APPLY_PATCHES "option to apply patches" ON)
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"Apply local patches"


if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
set(USE_PREBUILT_LLVM ON)

Expand All @@ -61,8 +65,6 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

option(LLVMSPIRV_INCLUDED_IN_LLVM
"Set to ON if libLLVMSPIRVLib is linked into libLLVM" ON)
if(LLVMSPIRV_INCLUDED_IN_LLVM)
message(STATUS "[OPENCL-CLANG] Assuming that libLLVMSPIRVLib is linked into libLLVM")
else(LLVMSPIRV_INCLUDED_IN_LLVM)
Expand Down Expand Up @@ -152,16 +154,19 @@ if(NOT USE_PREBUILT_LLVM)
get_filename_component(LLVM_MONOREPO_DIR ${LLVM_SOURCE_DIR} DIRECTORY)
set(LLVM_PATCHES_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm
${CMAKE_CURRENT_SOURCE_DIR}/patches/clang)
apply_patches(${LLVM_MONOREPO_DIR}
"${LLVM_PATCHES_DIRS}"
${LLVM_BASE_REVISION}
${TARGET_BRANCH}
ret)
apply_patches(${SPIRV_SOURCE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/patches/spirv
${SPIRV_BASE_REVISION}
${TARGET_BRANCH}
ret)
if(APPLY_PATCHES)
message(STATUS "APPLY_PATCHES is enabled.")
apply_patches(${LLVM_MONOREPO_DIR}
"${LLVM_PATCHES_DIRS}"
${LLVM_BASE_REVISION}
${TARGET_BRANCH})
apply_patches(${SPIRV_SOURCE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/patches/spirv
${SPIRV_BASE_REVISION}
${TARGET_BRANCH})
else()
message(STATUS "APPLY_PATCHES is disabled, skip patch apply process.")
endif()
endif(NOT USE_PREBUILT_LLVM)

#
Expand Down
17 changes: 9 additions & 8 deletions cmake/modules/CMakeFunctions.cmake
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Expand Up @@ -87,7 +87,7 @@ endfunction()
# Then all patches from the `patches_dir` are committed to the `target_branch`.
# Does nothing if the `target_branch` is already checked out in the `repo_dir`.
#
function(apply_patches repo_dir patches_dir base_revision target_branch ret)
function(apply_patches repo_dir patches_dir base_revision target_branch)
foreach(patches_dir ${patches_dir})
file(GLOB patches_in_dir ${patches_dir}/*.patch)
list(APPEND patches ${patches_in_dir})
Expand All @@ -97,19 +97,20 @@ function(apply_patches repo_dir patches_dir base_revision target_branch ret)
return()
endif()

message(STATUS "[OPENCL-CLANG] Patching repository ${repo_dir}")
# Check if it's a git repo
if(EXISTS "${repo_dir}/.git")
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can command in https://stackoverflow.com/questions/2044574/determine-if-directory-is-under-git-control/2044714#comment36357325_2044714 be used to detect if a folder is a git repo?

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@haonanya haonanya Jul 5, 2024 •
edited
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it seems git rev-parse --is-inside-work-tree can't work. I copy opencl-clang source code to /export/users/haonanya/ocl-clang/llvm/projects/, and git rev-parse --is-inside-work-tree return true.

[haonanya@shliclel4059 opencl-clang]$ git rev-parse --is-inside-work-tree
true
[haonanya@shliclel4059 opencl-clang]$ pwd
/export/users/haonanya/ocl-clang/llvm/projects/opencl-clang

So when llvm is as a sub-dir in a repo, the command can't detect it.

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I see

message(STATUS "[OPENCL-CLANG] Patching repository ${repo_dir}")
else()
message(STATUS "[OPENCL-CLANG][Warning] ${repo_dir} is not a git repository, therefore, local patches are not applied")
return()
endif()
# Check if the target branch already exists
execute_process(
COMMAND ${GIT_EXECUTABLE} rev-parse --verify --no-revs -q ${target_branch}
WORKING_DIRECTORY ${repo_dir}
RESULT_VARIABLE patches_needed
OUTPUT_QUIET
)
if(patches_needed EQUAL 128) # not a git repo
set(${ret} True PARENT_SCOPE)
message(STATUS "[OPENCL-CLANG][Warning] ${repo_dir} is not a git repository, therefore, local patches are not applied")
return()
endif()
if(patches_needed EQUAL 1) # The target branch doesn't exist
list(SORT patches)
is_valid_revision(${repo_dir} ${base_revision} exists_base_rev)
Expand Down Expand Up @@ -159,7 +160,7 @@ function(apply_patches repo_dir patches_dir base_revision target_branch ret)
)
endif()
if (NOT (ret_check_out OR ret_apply_patch))
set(${ret} True PARENT_SCOPE)
message(STATUS "[OPENCL-CLANG] Applied patch successfully!")
else()
message(FATAL_ERROR "[OPENCL-CLANG] Failed to apply patch!")
endif()
Expand Down
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