Parents and children of check-in [c796b51895]
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2026-10-21
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| 18:45 |
fix(repo): verify with one sweep down the delta forest
Repo.Verify expanded every non-phantom blob on its own with content.Verify. Each expansion re-applies the blob's whole delta chain, so the cost grows with the square of chain length. On a clone of fossil-scm.org's repository (67,894 blobs, chains averaging 532 deltas and reaching 2,546) repo verify took 49 minutes of CPU on both main and this branch, against six and a half minutes for fossil test-integrity. content.ExpandAll already walks the delta forest from its roots and applies each delta once, binding every result to its name; internal/verify uses it. Verify now goes through it, with the same blob selection (size >= 0), and names the failing rid in its error. The same clone verifies in 19 seconds. check-in: 6f269e32a9 user: [email protected] tags: feat/submanifest-reader, main, trunk | |
| 17:51 |
fix(dst): write scenario fixtures with fault injection suspended
The simulator arms Buggify when it is built, and the scenarios seed their fixtures after that. Two setups dropped blob.Store's error, so a store the injection failed left an empty UUID, and TestScenarioAuthRestrictedCaps panicked in blob.Exists's precondition when it asserted on it. The seed sweep hit this at adversarial seeds 5 and 8. seedTx suspends injection for the fixture transaction and fails the test if it does not commit. Every unchecked setup transaction in the package now goes through it. check-in: c796b51895 user: [email protected] tags: feat/submanifest-reader, main, trunk | |
| 15:55 |
fix(dst): run invariant checks with fault injection suspended
The safety checks ran while simio's Buggify was armed, so the read-path sites in blob decompression and content expansion truncated or flipped the bytes each check expanded. Every seed at the adversarial and hostile levels then reported a blob-integrity violation that was never persisted; CI runs the normal level only, so nothing caught it. simio.SuspendBuggify switches injection off and returns a resume that restores the previous state with its random stream intact, so a check mid-run does not change the run's later choices. Every exported check in dst/invariants.go suspends for its duration. A guard test arms Buggify over a clean repository and fails without the change. Also records in the CHANGELOG that ExtractOpts and RepoOpenCmd are no longer comparable. check-in: dfdf391349 user: [email protected] tags: feat/submanifest-reader, main, trunk | |