[clang] [llvm] [z/OS] treat text files as text files so auto-conversion is done (PR #90128)

[via llvm-commits]

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@@ -413,8 +413,9 @@ static bool format(StringRef FileName, bool ErrorOnIncompleteFormat = false) {
   // On Windows, overwriting a file with an open file mapping doesn't work,
   // so read the whole file into memory when formatting in-place.
   ErrorOr<std::unique_ptr<MemoryBuffer>> CodeOrErr =
-      !OutputXML && Inplace ? MemoryBuffer::getFileAsStream(FileName)
-                            : MemoryBuffer::getFileOrSTDIN(FileName);
+      !OutputXML && Inplace
+          ? MemoryBuffer::getFileAsStream(FileName)
+          : MemoryBuffer::getFileOrSTDIN(FileName, /*IsText=*/true);
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mydeveloperday wrote:

On windows won't this have an impact of potentially converting \n to \r\n? could a clang-format effectively become a unix2dos at the same time (for those using clang-format on cygwin is that what they want?) can we have a unit test to understand the impact?

https://github.com/llvm/llvm-project/pull/90128