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`railway scale --project <id>` failed with "Invalid replica count", while `-p <id>` worked. `normalize_legacy_scale_args` rewrites unrecognized `--foo bar` into the positional `foo=bar` to keep the legacy `--<region> <count>` spelling working. It kept its own hand-maintained list of scale's options, which had drifted from `Args`: `--project` (added in #893, after the normalizer landed in #881) was missing, so it became the positional `project=<id>` and was parsed as `REGION=REPLICAS`. Derive the long and short option sets from `Args::command()` instead of restating them, so a new option on `Args` cannot reintroduce this. `railway service scale` reuses the same `Args` type, so both entry forms share one source of truth.
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Problem
railway scale --project <id>fails withInvalid replica count;-p <id>works.normalize_legacy_scale_argsrewrites unrecognized--foo barinto the positionalfoo=bar, to keep the legacy--<region> <count>spelling working. It kept a hand-maintained copy of scale's options that had drifted fromArgs:--project(added in #893, after the normalizer landed in #881) was missing, so it becameproject=<id>and was parsed asREGION=REPLICAS.Closes #1024.
Resolution
Args::command()instead of restating them, so a new option onArgscannot reintroduce this.railway service scalereuses the sameArgstype — both entry forms now share one source of truth.--versionstays explicit: it is propagated from the root command, not declared onArgs.Verification
Against a live project,
before= 5.30.4:scale --project <id> …Invalid replica countscale --project=<id> …Invalid replica countscale -p <id> …service scale --project <id> …Invalid replica countscale --us-west2 1(legacy)