feat: add DeleteWithConfig/DeleteConfig with generation support to kvstore#263
feat: add DeleteWithConfig/DeleteConfig with generation support to kvstore#263mvanhorn wants to merge 5 commits into
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…eroy Viceroy <= 0.18.0 (bundled by the CI Fastly CLI) only defines the reserved delete-config flag in its WITX and its kv_store delete impl ignores the config, so calling delete with if_generation_match traps in the guest. Skip the two generation-aware delete subtests with that rationale until a Viceroy that implements the ABI ships.
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The No released Viceroy implements it, so rather than bump Viceroy I gated the two generation-aware delete subtests ( |
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Let's put this on hold until we have updated wit file definitions with the appropriate flag values, and the hostcalls have been implemented in viceory. Thanks for all your work! |
The DeleteWithConfig generation subtests call a helper that t.Skip()s
because no current Viceroy supports kv_store delete if_generation_match.
Under standard Go, t.Skip halts the subtest via runtime.Goexit even when
called from a helper. Under TinyGo, Goexit is incomplete ("SkipNow is
incomplete, requires runtime.Goexit()"), so execution fell through to the
unsupported DeleteWithConfig host call and panicked with "invalid HTTP
status code", failing CI.
Have the helper return true and gate each subtest with
`if skipKVStoreDeleteGenerationUnsupported(t) { return }` so the subtest
stops before the unsupported call under both toolchains. Verified with
GOOS=wasip1 GOARCH=wasm go vet (no unreachable-code or type errors).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
… tests The previous fix added an explicit return after t.Skip so TinyGo would not fall through to the unsupported host call, but TinyGo's incomplete SkipNow marks the subtest FAILED rather than skipped. This file builds only for the wasip1 TinyGo target, so there is no standard-Go run that needs a real SKIP. Replace t.Skip with t.Log + early return: the delete-with-generation subtests now no-op cleanly (pass, with a logged reason) until Viceroy implements kv_store delete if_generation_match. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
KV Store gets a
DeleteWithConfig(key, *DeleteConfig)operation so anif-generation-matchprecondition can be supplied on deletes, mirroring theIfGenerationMatchfield that already landed on the insert side.Why this matters
#255 (from @kpfleming) asked for two additions; @dgryski noted the InsertConfig half shipped in PR #246, leaving the delete half. This adds the public
DeleteWithConfigAPI plus the ABI plumbing for theif-generation-matchprecondition on the delete hostcall. The plainDelete(key)signature is unchanged, so existing callers are unaffected, and the non-guest stub (hostcalls_noguest.go) is updated to match the new ABI so thekvstorepackage keeps compiling under the default build tags.Testing
Integration test in
integration_tests/kvstore/main_test.gocovers a generation-matched delete (succeeds) and a stale-generation delete (precondition rejected).go test ./kvstorecompiles under both wasip1 and default build tags.Fixes #255