From 589895aaadcea4af211869606410adbb8beb0be7 Mon Sep 17 00:00:00 2001
From: "Yang, Haonan" <haonan.yang@intel.com>
Date: Wed, 3 Jul 2024 16:35:03 +0800
Subject: [PATCH] Do not apply patches if repo is a not a git repo.

Also backports https://github.com/intel/opencl-clang/commit/fb755984fadb2d2e2787e5ea7916190bde05f5d6
---
 cmake/modules/CMakeFunctions.cmake | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/cmake/modules/CMakeFunctions.cmake b/cmake/modules/CMakeFunctions.cmake
index 097cba0..a771517 100644
--- a/cmake/modules/CMakeFunctions.cmake
+++ b/cmake/modules/CMakeFunctions.cmake
@@ -56,7 +56,6 @@ function(is_backport_patch_present patch_path repo_dir patch_in_branch)
         WORKING_DIRECTORY ${repo_dir}
         RESULT_VARIABLE patch_not_in_branches
         OUTPUT_QUIET
-        ERROR_QUIET
         )
     if(patch_not_in_branches)
         set(patch_in_branch False PARENT_SCOPE) # The patch is not present in local branch
@@ -73,7 +72,6 @@ function(is_valid_revision repo_dir revision return_val)
         COMMAND ${GIT_EXECUTABLE} log -1 ${revision}
         WORKING_DIRECTORY ${repo_dir}
         RESULT_VARIABLE output_var
-        ERROR_QUIET
         OUTPUT_QUIET
         )
     if(${output_var} EQUAL 0)
@@ -101,14 +99,12 @@ function(apply_patches repo_dir patches_dir base_revision target_branch)
         COMMAND ${GIT_EXECUTABLE} rev-parse --verify --no-revs -q ${target_branch}
         WORKING_DIRECTORY ${repo_dir}
         RESULT_VARIABLE patches_needed
-        ERROR_QUIET
         OUTPUT_QUIET
     )
-    if(patches_needed EQUAL "128")
+    if(patches_needed EQUAL 128)
       message(STATUS "[OPENCL-CLANG] ${repo_dir} is not a git repository")
       return()
-    endif()
-    if(patches_needed EQUAL "1") # The target branch doesn't exist
+    elseif(patches_needed EQUAL 1) # The target branch doesn't exist
         list(SORT patches)
         is_valid_revision(${repo_dir} ${base_revision} exists_base_rev)
 
@@ -118,7 +114,6 @@ function(apply_patches repo_dir patches_dir base_revision target_branch)
                 WORKING_DIRECTORY ${repo_dir}
                 OUTPUT_VARIABLE repo_head
                 OUTPUT_STRIP_TRAILING_WHITESPACE
-                ERROR_QUIET
                 )
             message(STATUS "[OPENCL-CLANG] ref ${base_revision} not exists in repository, using current HEAD:${repo_head}")
             set(base_revision ${repo_head})
@@ -141,19 +136,20 @@ function(apply_patches repo_dir patches_dir base_revision target_branch)
                     COMMAND ${GIT_EXECUTABLE} am --3way --ignore-whitespace ${patch}
                     WORKING_DIRECTORY ${repo_dir}
                     OUTPUT_VARIABLE patching_log
-                    ERROR_QUIET
                 )
                 message(STATUS "[OPENCL-CLANG] Not present - ${patching_log}")
             endif()
         endforeach(patch)
-    elsef(patches_needed EQUAL "0") # The target branch already exists
+    elsef(patches_needed EQUAL 0) # The target branch already exists
         execute_process( # Check it out
             COMMAND ${GIT_EXECUTABLE} checkout ${target_branch}
             WORKING_DIRECTORY ${repo_dir}
-            ERROR_QUIET
             OUTPUT_QUIET
         )
     endif()
+    if (ret_check_out OR ret_apply_patch)
+      message(FATAL_ERROR "[OPENCL-CLANG] Failed to apply patch!")
+    endif()
 endfunction()
 
 # Usage