[SYCLomatic] Fix bug that dpct.cmake is copied into out-root directory when both --migrate-build-script=Python and --migrate-build-script-onlyare specified

Signed-off-by: chenwei.sun <chenwei.sun@intel.com>

Author: tomflinda

clang/lib/DPCT/DPCT.cpp

@@ -525,7 +525,8 @@ static void loadMainSrcFileInfo(clang::tooling::UnifiedPath OutRoot) {
       llvm::errs() << getLoadYamlFailWarning(YamlFilePath);
     }
 
-    if (MigrateBuildScriptOnly || DpctGlobalInfo::migrateCMakeScripts()) {
+    if (MigrateBuildScriptOnly && !DpctGlobalInfo::migratePythonScripts() ||
+        DpctGlobalInfo::migrateCMakeScripts()) {
       std::string Major = PreTU->SDKVersionMajor;
       std::string Minor = PreTU->SDKVersionMinor;
       if (!Major.empty() && !Minor.empty()) {

clang/test/dpct/python_migration/case_006/case_006_torch_cuda.cpp

@@ -7,3 +7,9 @@
 
 // RUN: dpct -in-root ./ -out-root out_ipex ./input.py --migrate-build-script-only --migrate-build-script=Python --rule-file=%T/../../../../../../../extensions/python_rules/python_build_script_migration_rule_ipex.yaml
 // RUN: diff --strip-trailing-cr %S/expected.py %T/out_ipex/input.py >> %T/diff.txt
+
+// RUN: mkdir -p %T/out_pytorch1
+// RUN: cp %S/MainSourceFiles.yaml %T/out_pytorch1/MainSourceFiles.yaml
+// RUN: dpct -in-root ./ -out-root out_pytorch1 ./input.py --migrate-build-script-only --migrate-build-script=Python --rule-file=%T/../../../../../../../extensions/python_rules/python_build_script_migration_rule_pytorch.yaml
+// dpct.cmake should not be copied into %T/out_pytorch1 direcotrtory.
+// RUN: test ! -f %T/out_pytorch1/dpct.cmake