fix(resume): allow passing a prompt via stdin while resuming using --resume

[bl-ue]

Summary

Reported by @arjun810 in #10719 (comment). Thank you @arjun810!

Details

Related Issues

How to Validate

Pre-Merge Checklist

• Updated relevant documentation and README (if needed)
• Added/updated tests (if needed)
• Noted breaking changes (if any)
• Validated on required platforms/methods:
  • MacOS
    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt
  • Windows
    • npm run
    • npx
    • Docker
  • Linux
    • npm run
    • npx
    • Docker

[gemini-code-assist]

Summary of Changes

Hello @bl-ue, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the flexibility of the CLI by allowing users to pipe prompt input via stdin when resuming a session in non-interactive environments. This addresses a reported issue where the CLI previously enforced an explicit --prompt argument, improving the command-line tool's usability for automated scripts or complex piping scenarios.

Highlights

• Enabled Stdin for Resume Prompts: The previous validation that required an explicit --prompt argument when using --resume in non-interactive mode has been removed. This now allows users to provide the prompt via standard input (stdin) instead.
• Updated Test Case: A corresponding test case in config.test.ts was updated to reflect this new behavior. It now asserts that parseArguments successfully processes a --resume command without an explicit --prompt when process.stdin.isTTY is false, rather than throwing an error.

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[gemini-code-assist]

Code Review

This pull request fixes an issue where a prompt could not be passed via stdin when resuming a session. The change correctly removes a validation check that was preventing this. However, this also removes a safeguard that prevented running a resume command without any prompt in a non-interactive session. I've added a comment suggesting to re-introduce this check at a later stage of execution to maintain good error handling for that edge case.

[bl-ue]

/gemini review

[gemini-code-assist]

Code Review

This pull request correctly addresses an issue where resuming a session with --resume was not possible when providing a prompt via stdin. The change involves removing an overly restrictive validation check in the argument parsing logic. The corresponding test case has been updated to reflect and verify the new, correct behavior. The changes are clean, targeted, and well-tested. This is a good fix.