[llvm] [llvm-lit] Adding -e option to lit's built-in cat command (PR #102061)

[Paul Kirth via llvm-commits]

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@@ -69,8 +87,8 @@ def main(argv):
                 fileToCat = open(filename, "rb")
                 contents = fileToCat.read()
 
-            if show_nonprinting:
-                contents = convertToCaretAndMNotation(contents)
+            if True in fields(enabled_options):
+                contents = convertTextNotation(contents, enabled_options)
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ilovepi wrote:

But that means well run the conversion code when we don't need to right? It's preferable in my opinion to avoid that work if we don't have to, specially since that routine a character by character copy.

I'm also wondering if we should have an early exit from the routine if the neither option is set. WDYT?

https://github.com/llvm/llvm-project/pull/102061