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fix(common): a gcs transport error is an error, not a panic - #1718
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Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 1 files. | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Description check The description clearly explains the GCS transport-error fix and includes the regression test. It omits the template's Checklist section and does not include test command output, but the required chan… Title check The title clearly and concisely describes the main change: prevent GCS transport errors from causing a panic and preserve the error result. It follows the repository's Conventional Commit format. Full details: Description check
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Explanation
The description clearly explains the GCS transport-error fix and includes the regression test. It omits the template's Checklist section and does not include test command output, but the required change summary and testing information are present.
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A rabbit checks the status code,
Where transport errors once might explode.
Zero marks the missing state,
Tests confirm the error’s fate.
Soft paws hop along the load.
Comment @coderabbitai help to get the list of available commands.
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Approved: no findings at Nothing to do. Clobber: none seen. |
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Actionable comments posted: 1
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@crates/common/src/fetchers.rs`:
- Line 529: Update the assertion in the GCS transport-error test using
FetchResponse::status_code to require the missing-status sentinel value of 0,
rather than merely asserting that the status is not 404.
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crates/common/src/fetchers.rs
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/revise fix coderabbit concern |
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Round 1 of 10 is on this pull request. branch Updated 2026-10-03T03:00:37.543Z. |
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Round 1 of 10 on a /revise note, pushed as No Review threads the coder judged:
On this branch the GCS transport-error test now pins the contract exactly: a status-less GCS error must report the sentinel 0, so a regression that returned any other unsuccessful value (500, say) would fail the test instead of slipping past the old Notes from the agent: Revise round for PR #1718; no plan task, no layers, so scope was the directive's one coderabbit thread. Its premise holds against the branch: |
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@CodeRabbit review |
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status_code() panicked on a GCS error with no HTTP status (DNS, connect, timeout). Both callers check is_success() and fall back to error_for_status(), which returns the error, so a sentinel status is all they need. Seen on a res-server that lost DNS: the index read panicked the request handler instead of failing the build. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The transport-error test asserted `status_code != 404`, which also passes if the code under test returns any other unsuccessful value (500, say). A transport error with no HTTP status is defined to report the sentinel 0 — never a success, never a 404 — so assert it as an equality and pin the contract.
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Rebased onto main 11b0b44; the two commits are unchanged, and clippy and the |
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recheck |
FetchResponse::status_code()for the GCS response panicked when the error carried no HTTP status (DNS failure, connection refused, timeout):Seen on a res-server that lost name resolution: the
index.shisharead panicked the gRPC handler, and the client gotres-server handler panickedinstead of the transport error.Both callers (
remote.rsindex read and artifact fetch) already checkis_success()and take the error fromerror_for_status(), so the fix returns0(never a success, never a 404) instead of panicking, and the error propagates asError::Backend.Test:
gcs_transport_error_is_an_error_not_a_panic, throughAnyResponsewithGcsError::exhausted; it fails on main with the original panic.🤖 Generated with Claude Code
Summary by CodeRabbit
0; errors that include an HTTP status continue to report that status. Error handling continues to recognize transport failures as errors.