[clang] [clang-scan-deps] Expand response files before the argument adjuster (PR #89950)

[Jan Svoboda via cfe-commits]

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@@ -0,0 +1,36 @@
+// Check that the scanner can adjust arguments by reading .rsp files in advance.
+
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+// RUN: sed -e "s|DIR|%/t|g" %t/cdb.json.template > %t/cdb.json
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jansvoboda11 wrote:

You can now do this: `clang-scan-deps -o %t/deps.json -- %clang_cl <args>`. I guess `<args>` for `clang-cl` specifically cannot contain `%t` since that will begin with `/` on Unix system and cause command line parsing errors. But using relative paths like you currently do and changing directory before running the tools should work a will probably be much cleaner.

https://github.com/llvm/llvm-project/pull/89950