fix(cli): preserve service command exit failures

[luvs01]

Summary

• Inject the service command into CLI dispatch like the other entrypoint-owned handlers.
• Preserve nonzero process.exitCode values set by recoverable service install or stop failures instead of returning success from the dispatcher.
• Add focused coverage for exact subcommand forwarding and exit codes 0, 1, and 2.

Verification

• Base: dev at a1e5192b75edbf6dcacae51a30912fab93906f87; exact head: 5dcbcae5defcc278ffa8fcb00d5e03870b4cb6f4.
• Bun 1.3.14: tests/cli-dispatch.test.ts — 9 pass, 0 fail; typecheck passed.
• Bun 1.4.0 canary: tests/cli-dispatch.test.ts — 9 pass, 0 fail; typecheck passed.
• bun run privacy:scan and git diff --check passed.
• Independent scoped review found no P0-P2 issue. Exact-head maintained CI is still required.

Checklist

• Scope stays focused and avoids unrelated cleanup.
• Docs or release notes were updated when needed. No command surface, configuration, or API behavior changed; this corrects the existing exit-status contract.
• Security-sensitive changes were reviewed for secrets, auth, and unsafe defaults.

Review readiness checklist

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Summary by CodeRabbit

• Bug Fixes
  • Service command failures now return the correct exit codes instead of always reporting success.
  • Service command arguments are forwarded correctly.
  • Previous process exit codes are restored after command execution.

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📥 Commits

Reviewing files that changed from the base of the PR and between fb53ab1 and 66f9dac.

📒 Files selected for processing (2)

• src/cli/dispatch.ts
• tests/cli-dispatch.test.ts

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📝 Walkthrough

Walkthrough

The CLI dispatch now receives serviceCommand through its dependencies. The service runner forwards arguments and preserves handler exit codes. Tests verify argument forwarding, exit-code handling, and restoration of the previous process.exitCode.

Changes

Service dispatch flow

Layer / File(s)	Summary
Inject service command and preserve exit codes src/cli/dispatch.ts, src/cli/index.ts, tests/cli-dispatch.test.ts	serviceCommand is provided through CliDispatchDeps and passed from CLI setup. The service runner forwards arguments and returns the handler’s process.exitCode. Tests cover exit codes 0, 1, and 2, plus restoration of the previous exit code.

Estimated code review effort: 2 (Simple) | ~10 minutes

Mergeability Score: 🔵 Low · up to 66f9d

The CLI now preserves service-command failures, but a focused test may leave process.exitCode set to 0 when no prior value existed, which could affect later tests or CI status; merge is reasonable with owner awareness and follow-up.

Sequence Diagram(s)

sequenceDiagram
  participant CLI as src/cli/index.ts
  participant Dispatch as dispatchCommand
  participant Service as injected serviceCommand
  CLI->>Dispatch: provide serviceCommand dependency
  Dispatch->>Service: forward service arguments
  Service-->>Dispatch: set process.exitCode
  Dispatch-->>CLI: return handler exit code

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Possibly related PRs

• lidge-jun/opencodex#1451: Both changes update service command dependency handling and exit-code behavior.
• lidge-jun/opencodex#1455: Both changes propagate service command exit codes through CLI dispatch.
• lidge-jun/opencodex#1456: Both changes update CLI dispatch dependency handling.

Suggested reviewers: wibias, ingwannu, lidge-jun

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: preserving nonzero exit codes from service command failures.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

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• all PR quality gates passed; the review readiness checklist is complete.

Review readiness checklist

• ✅ All CI tests are green on my local testing.
• ✅ I pushed my PR to the latest dev commit.
• ✅ I resolved all correct Codex and CodeRabbit findings.
• ✅ My PR is ready for review.

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The review-ready label marks this PR as ready; review automation runs independently.
Maintainers: @lidge-jun @Ingwannu @Wibias

[lidge-jun]

The implementation is correctly scoped: src/cli/dispatch.ts:263-267 now obtains serviceCommand through the entrypoint-owned dependency injection boundary and returns its process.exitCode, matching the established init, start, and stop runners. The regression in tests/cli-dispatch.test.ts:80-104 is behavioral rather than tautological: it verifies both exact subcommand forwarding and that exit codes 0, 1, and 2 reach the top-level dispatcher.

No CodeRabbit finding needs adjudication; its review was skipped because this PR is draft.

Blocking release-readiness items:

• Rebase onto current dev (040f6db5); this head is one commit behind it.
• Run the maintained exact-head CI/test gate and complete the contributor readiness checklist. The successful checks on this head are only label/target/hygiene policy checks, not build or test evidence.

DISPOSITION: NEEDS-CHANGE

[luvs01]

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Actionable comments posted: 2

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Inline comments:
In `@src/cli/dispatch.ts`:
- Around line 263-267: Reset process.exitCode to zero at the start of the
service handler before invoking serviceCommand, so a successful command cannot
inherit a prior nonzero code; preserve returning the resulting exit code after
cleanup. Add a test in the service dispatch cases covering a preexisting nonzero
exitCode followed by a successful serviceCommand and asserting a zero result.

In `@tests/cli-dispatch.test.ts`:
- Around line 101-103: Update the finally block to restore the saved
process.exitCode value directly, without applying a nullish fallback to 0;
preserve the previous value exactly, including undefined.

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• Create a new PR with the fixes

---

ℹ️ Review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 8b1c620 and fb53ab1.

📒 Files selected for processing (3)

• src/cli/dispatch.ts
• src/cli/index.ts
• tests/cli-dispatch.test.ts

[luvs01]

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[Wibias]

Thanks for this — this is a small fix with a very useful reliability payoff. Preserving the real service-command exit code means scripts, installers and automation can finally distinguish a successful service operation from a recoverable failure instead of getting a false success from the CLI. The focused argument/exit-code coverage also makes this behavior much harder to regress. 🙏