Revert "[clang][cmake] Add options to pass in vcs repo and revision i…

…nfo"

This reverts commit 1f5e737.

clang/lib/Basic/CMakeLists.txt

@@ -14,31 +14,17 @@ set(generate_vcs_version_script "${LLVM_CMAKE_DIR}/GenerateVersionFromVCS.cmake"
 if(llvm_vc AND LLVM_APPEND_VC_REV)
   set(llvm_source_dir ${LLVM_MAIN_SRC_DIR})
 endif()
-if (LLVM_VC_REPOSITORY AND LLVM_VC_REVISION)
-  set(llvm_source_dir ${LLVM_SOURCE_DIR})
-  set(llvm_vc_repository ${LLVM_VC_REPOSITORY})
-  set(llvm_vc_revision ${LLVM_VC_REVISION})
-endif()
 if(clang_vc AND LLVM_APPEND_VC_REV)
   set(clang_source_dir ${CLANG_SOURCE_DIR})
 endif()
-if (CLANG_VC_REPOSITORY AND CLANG_VC_REVISION)
-  set(clang_source_dir ${CLANG_SOURCE_DIR})
-  set(clang_vc_repository ${CLANG_VC_REPOSITORY})
-  set(clang_vc_revision ${CLANG_VC_REVISION})
-endif()
 
 # Create custom target to generate the VC revision include.
 add_custom_command(OUTPUT "${version_inc}"
   DEPENDS "${llvm_vc}" "${clang_vc}" "${generate_vcs_version_script}"
   COMMAND ${CMAKE_COMMAND} "-DNAMES=\"LLVM;CLANG\""
                            "-DLLVM_SOURCE_DIR=${llvm_source_dir}"
                            "-DCLANG_SOURCE_DIR=${clang_source_dir}"
-                           "-DCLANG_VC_REPOSITORY=${clang_vc_repository}"
-                           "-DCLANG_VC_REVISION=${clang_vc_revision}"
                            "-DHEADER_FILE=${version_inc}"
-                           "-DLLVM_VC_REPOSITORY=${llvm_vc_repository}"
-                           "-DLLVM_VC_REVISION=${llvm_vc_revision}"
                            -P "${generate_vcs_version_script}")
 
 # Mark the generated header as being generated.

llvm/cmake/modules/GenerateVersionFromVCS.cmake

@@ -18,7 +18,10 @@ include(VersionFromVCS)
 # Handle strange terminals
 set(ENV{TERM} "dumb")
 
-function(append_info name revision repository)
+function(append_info name path)
+  if(path)
+    get_source_info("${path}" revision repository)
+  endif()
   if(revision)
     file(APPEND "${HEADER_FILE}.tmp"
       "#define ${name}_REVISION \"${revision}\"\n")
@@ -36,15 +39,10 @@ function(append_info name revision repository)
 endfunction()
 
 foreach(name IN LISTS NAMES)
-  if(${name}_VC_REPOSITORY AND ${name}_VC_REVISION)
-    set(revision ${${name}_VC_REVISION})
-    set(repository ${${name}_VC_REPOSITORY})
-  elseif(DEFINED ${name}_SOURCE_DIR)
-    get_source_info(${${name}_SOURCE_DIR} revision repository)
-  else()
+  if(NOT DEFINED ${name}_SOURCE_DIR)
     message(FATAL_ERROR "${name}_SOURCE_DIR is not defined")
   endif()
-  append_info(${name} ${revision} ${repository})
+  append_info(${name} "${${name}_SOURCE_DIR}")
 endforeach()
 
 # Copy the file only if it has changed.