On Linux 3.9.7, Error parsing arguments: FormatException: Could not find an option named "--help" #188

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1. ClausValcaTD

   closed this as completedin #191on Nov 2, 2026
2. ClausValcaTD commented on Nov 2, 2026

   

   ClausValcaTD

   on Nov 2, 2026 – with OpenHands AI

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   Fixed by #191 (merged into main as c6abb9c), and released in v3.9.8.

   The CLI now defines a real --help / -h flag:

   $ openrom-core --help
   OpenROM CLI — Universal ROM Compression Suite
   
   Usage: openrom-core [options]
   
   -i, --input             single input ROM file
   ...
   -h, --help              show this help message
   -v, --version           show version
   

   Along the way:

   • Running openrom-core with no arguments now prints the full usage instead of a one-liner.
   • An unknown option still exits 2, but now prints the usage to stderr next to the error.
   • --help / --version exit before loading plugins, so their output stays clean.
   • Added regression tests in core/test/cli_help_test.dart.

   Thanks for the report, @fprimex!

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