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20 Commits
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 xarmian
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d83632e258 |
feat(attachments): extension trust — the audio/video split, the text family, the CFB office trio and RTF (TASK-2976 / BUG-2963 PR B) (#1309)
* test(attachments): record the Void-beyond-window limit, and correct three comments that claimed more than their evidence (TASK-2976) The first commit of BUG-2963 PR B, before any extension-trust work: round 6's three items, deliberately kept out of PR A so its verified tip would not move, plus the nix terminator-comment correction folded in from BUG-2974's trail. 1. TestMatroskaDocTypeBeyondTheWindowIsWebM records a LIMITATION. A Void element is legal anywhere in an EBML header and may be any size; make one larger than the 512 bytes this door reads and the DocType behind it is not in the input at all, so the parse finds nothing and the stdlib's video/webm stands. Nothing got worse — the same file was video/webm before the DocType read existed, and video/webm's own allowlist entry permits inline serving — and no larger window fixes it, since Void may be larger still. The fixture is the ordinary FFmpeg Matroska with a 560-byte Void spliced into its header and the header size widened to match, the same construction as matroska-void-padded.head512; the complete file reads as matroska,webm under ffprobe, and what is committed is its first 512 bytes, so the DocType is absent by construction rather than by truncation accident. 2. TestTarWinsAPrefixCollision no longer calls the collision "asymmetric". That was the round-4 premise round 5 refuted with flac-ustar-in-comment.head512 — a FLAC's Vorbis COMMENT tags are arbitrary UTF-8, so real audio carries "ustar" at offset 257 as readily as a real tar carries an audio marker at offset zero. The implementation and the fixtures already said so; the stale word survived in the place a reader looks first. The comment now gives the real reason tar leads the default order, which is weaker: its magic sits at a fixed offset rather than at a prefix. 3. The seven-byte textual-AAC input's comment says which of the two things it is. It is a valid ADTS sync and layer signature that the stdlib reads as text — not a decodable AAC, and nothing in the test establishes that it is. What review established is the case it stands in for, and the comment now separates the two. 4. The nix loop-terminator comments named the wrong mechanism (BUG-2974, observed day 62). The heal push cannot loop because a push made with the default GITHUB_TOKEN creates no workflow runs at all — `gh run list --branch main` spans |
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github-actions[bot]
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249a8f879f |
chore(nix): heal vendorHash for the module set in 31d11e76ea (TASK-2954)
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xarmian
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38d8803603 |
fix(nix): gate the vendorHash heal on state, not on the push range (BUG-2974) (#1303)
* fix(nix): gate the vendorHash heal on state, not on the push range (BUG-2974) The heal job asked whether THIS push touched go.mod/go.sum. That is the right question for loop prevention and the wrong one for recovery: after a lost push race the tree needing the fix was written by an EARLIER push, so every later merge that did not itself move the module set refused to heal, exited GREEN, and left main carrying a hash a clean `nix build` rejects. It happened on |
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xarmian
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5ce1103981 |
chore(nix): heal vendorHash for the module set in b7235a1a (TASK-2954, BUG-2974)
The heal job's commit for #1301's module set (a515b03b on run 34296097000)
was rejected non-fast-forward when
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xarmian
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49d1bfcd85 |
ci(nix): a Go bump's Nix check is green when the build passes, and main heals its own vendorHash (TASK-2954) (#1292)
`vendorHash` pins the Go module set by content hash. Dependabot updates go.mod and go.sum and has no idea `nix/package.nix` exists, so every Go-dependency bump PR failed `Nix build & check` on a fixed-output hash mismatch — structurally, and forever. Both open Go bumps (#1274, #1275) are red that way today; the npm-side bumps (#1276, #1277) are green, which is the control that isolates the cause. A permanently-red check is not a check: a bump that genuinely breaks the build looks identical, at a glance, to one that only moved the hash. Two halves, and they are deliberately in different places. THE CHECK IS MADE HONEST WITHOUT A TOKEN. Every Nix run recomputes the hash in its working tree before the build steps judge it, so green means the build passed with that ref's actual module set. This runs for every author, not just Dependabot: a human's own go.mod change moves the hash the same way, and a check that is honest for one author only is the shape this removes. MAIN HEALS ITSELF ONE COMMIT AFTER A MERGE. The corrected file cannot be pushed from a Dependabot PR run: such a run gets a read-only GITHUB_TOKEN — it runs as if from a fork — and the `permissions` key does NOT lift that. Only a repository-wide setting does, and that setting would hand fork PRs write tokens on a public repo, which is the surface CONVE-2438 exists to keep closed. The merge, however, is authored by a human, so the `push: main` run that follows is ordinary. A separate job with the only `contents: write` in the file commits the recomputed value there, gated on the JOB (a step-level `if` is not a boundary — the job would still hold the token and checkout persists it), on the build having passed, and on this push having touched go.mod or go.sum. The loop guard is the commit's own contents: the bot commit touches nix/package.nix and nothing else, so the run it triggers finds go.mod and go.sum unchanged and stops at the first gate. Not a heuristic about who pushed — the fix cannot invalidate the hash it just wrote. Three ways that gate could have lost a heal, all closed. A cancelled main run's heal is never retried — the next push's run recomputes correctly but its gate sees only its OWN commits — so `cancel-in-progress` is now `pull_request`-only; and that alone is not enough, because GitHub holds only ONE pending run per concurrency group and a third push evicts the queued second, which looks exactly like a run that found nothing to do — so push runs get a per-commit group that nothing can evict. The gate also compares `before..after` on a full clone rather than `HEAD~1..HEAD` on a two-commit one, because a direct push of several commits can carry the go.sum change anywhere in the range. A concurrent merge makes the push a non-fast-forward: the job goes red rather than overwriting, and that merge's own run heals. WHAT THE PARSER REFUSES is the whole correctness argument. This build has many fixed-output derivations: every npm tarball `importNpmLock` fetches is one, and a mismatch in any of them prints the same block with a `got:` line. Taking "the got: hash" writes a tarball's hash into `vendorHash` and looks like it worked — which is what package.nix's old comment told a human to do by eye. So each line is stripped of its runner timestamp and indentation SEPARATELY and matched whole, and a header counts only if it says `error:`, names a single store path segment that STARTS with a 32-character store hash then `-pad-` and ends `-go-modules.drv':` with nothing after it — identity, not resemblance, since `-pad-` anywhere in the name also matches `…-other-pad-tool-…-go-modules.drv`; the hash is then taken only from a canonical-length `got:` on the line IMMEDIATELY after a canonical-length `specified:`. Anything else exits 1 having written nothing, and the build stays red. 40 assertions in nix/bump-vendor-hash_test.sh, wired into the CI Go job and `make test-nix-hash` — in ci.yml rather than nix.yml because otherwise nothing on an ordinary PR would run it, and a break would surface on the next bump. 14 mutants, all killed — but five of them survived the first suite that claimed to cover them, each because the case written for the rule was ALSO refused for a second reason and so discriminated nothing about it: short hashes on both lines never exercised either length rule on its own, and a nested path that also had a malformed store hash never exercised the single-segment rule. A sixth, dropping the canonical length from the `got:` condition, survived because the extractor re-stated the rule; the fix was to state it once. Portability is checked, not assumed: `awk` is gawk here and mawk on the runners, so the suite re-runs itself under mawk, gawk and busybox and is green only if all agree. The parser also had a real defect — it worked only on timestamped CI logs, not the local log package.nix tells a human to produce — found by asserting an exit code rather than file contents, because for a no-op input "did not write" and "could not parse" leave identical files. Claude-Session: https://claude.ai/code/session_01Xk9M5UVPdc84xL5E1mZkm8 |
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xarmian
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0900be6241 |
chore(deps): bump golang.org/x/crypto to v0.56.0 (BUG-2851)
Two advisories published 2026-09-02 19:12Z (GO-2026-6354, GO-2026-6355; DoS in golang.org/x/crypto/ssh, fixed in v0.56.0) made govulncheck fail the Nix job on runners whose vulnerability database had them — intermittently across runners, not as a threshold: main at |
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xarmian
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0e2cb06add |
chore(nix): bump package version to 0.15.0 ahead of the v0.15.0-rc.1 tag
Claude-Session: https://claude.ai/code/session_01HvAuiZ7JaWyCqqyV99LyWt |
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dependabot[bot]
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ff969d23e0 |
chore(deps)(deps): bump the go-minor-and-patch group across 1 directory with 4 updates (#1180)
* chore(deps)(deps): bump the go-minor-and-patch group across 1 directory with 4 updates Bumps the go-minor-and-patch group with 4 updates in the / directory: [github.com/go-chi/chi/v5](https://github.com/go-chi/chi), [github.com/mark3labs/mcp-go](https://github.com/mark3labs/mcp-go), [golang.org/x/crypto](https://github.com/golang/crypto) and [modernc.org/sqlite](https://gitlab.com/cznic/sqlite). Updates `github.com/go-chi/chi/v5` from 5.3.1 to 5.3.2 - [Release notes](https://github.com/go-chi/chi/releases) - [Changelog](https://github.com/go-chi/chi/blob/master/CHANGELOG.md) - [Commits](https://github.com/go-chi/chi/compare/v5.3.1...v5.3.2) Updates `github.com/mark3labs/mcp-go` from 0.57.0 to 0.58.0 - [Release notes](https://github.com/mark3labs/mcp-go/releases) - [Commits](https://github.com/mark3labs/mcp-go/compare/v0.57.0...v0.58.0) Updates `golang.org/x/crypto` from 0.54.0 to 0.55.0 - [Commits](https://github.com/golang/crypto/compare/v0.54.0...v0.55.0) Updates `modernc.org/sqlite` from 1.56.0 to 1.57.0 - [Changelog](https://gitlab.com/cznic/sqlite/blob/master/CHANGELOG.md) - [Commits](https://gitlab.com/cznic/sqlite/compare/v1.56.0...v1.57.0) --- updated-dependencies: - dependency-name: github.com/go-chi/chi/v5 dependency-version: 5.3.2 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: go-minor-and-patch - dependency-name: github.com/mark3labs/mcp-go dependency-version: 0.58.0 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: go-minor-and-patch - dependency-name: golang.org/x/crypto dependency-version: 0.55.0 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: go-minor-and-patch - dependency-name: modernc.org/sqlite dependency-version: 1.57.0 dependency-type: direct:production update-type: version-update:semver-minor dependency-group: go-minor-and-patch ... Signed-off-by: dependabot[bot] <support@github.com> * nix: vendorHash for the go-minor-and-patch bump The four module updates change the vendored dep set; hash taken from the fixed-output derivation mismatch on this PR's own Nix run (the in-branch fix the day-26 batch established on #1041). Claude-Session: https://claude.ai/code/session_01HvAuiZ7JaWyCqqyV99LyWt --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: xarmian <xarmian@gmail.com> |
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xarmian
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25c7cd20f5 |
feat(watchevents): Redis-backed bus so watch notifications cross instances (BUG-2651) (#1167)
* feat(watchevents): Redis-backed bus so watch notifications cross instances (BUG-2651) internal/watchevents shipped MemoryBus only, so in a multi-instance deployment a notification published on instance A never reached a stream held open on instance B — watches appeared to work and silently dropped. Bus was an interface from day one for exactly this; adding RedisBus changed no producer and no consumer. NOT A MECHANICAL PORT of internal/events.RedisBus. Three deliberate divergences, each documented at the point someone diffing the two files would call it a mistake: - ONE channel and ONE replay buffer, because this package has exactly one logical stream by contract (DOC-2479 DR-2: all per-caller filtering happens in the consumer). Most of the template's bookkeeping — per- workspace counts, subscriptions, buffers — has nothing to key on here. - EAGER subscription for the bus's lifetime, not lazily on first local subscriber. The replay buffer fills from the RECEIVE path, so a lazily torn-down subscription stops filling it at precisely the moment before a Last-Event-ID resume — for one harness monitor holding one stream, that makes resume structurally useless. The template can afford lazy because per-workspace means N idle subscriptions; here it is one. - ONE mutex across subscriber membership and the replay buffer, held through the whole local fan-out. The template uses two and offers only separate Subscribe + EventsSince, which cannot provide SubscribeAndReplaySince's guarantee. Copying its locking would have handed back the double-delivery window this package's interface exists to close. Publish fails CLOSED when INCR fails, where the template falls back to a local counter. Two instances falling back at once mint ids from independent counters into a shared stream, and replayBuffer.since() reasons on monotonicity — so the damage is silent replay corruption, not a visible error. INCR and PUBLISH share a connection anyway, so the fallback mostly lets a doomed publish proceed carrying a poisoned id. Both load-bearing tests were VACUOUS as first written; the mutation matrix is the only reason I know: - the concurrency test's producer finished before the subscriber joined, so the channel leg was never exercised and a split-lock mutant survived 50 iterations. Now paced, with a both-legs-non-empty precondition that fails a run which never approached the boundary, plus a dedicated detector (600 attempts, 8/8 kills, 0.02s after switching the drain to non-blocking — exact, because the duplicate is already buffered when the call returns). - the fail-closed test asserted nothing was delivered, which is true of the fallback too: Publish never delivers locally, so with Redis down neither policy delivers. Rewritten around a go-redis ProcessHook that records attempted commands, which is where the policies actually differ (INCR-then-stop vs INCR-then-PUBLISH). Also corrects session_presence.go, which told the next person these two had to be fixed together. Delivery is now cross-instance; the registry's under-report is unchanged, so the remaining defect is a picker that under-reports rather than a push that lies. The PLAN-2558 S3 gate stays, for that reason instead of the old one. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): make id assignment and publish atomic; close the bus on shutdown (Codex round 1) P1 — INCR and PUBLISH as two client calls are not order-preserving, and the failure is concrete: A gets id 1 and is descheduled, B gets id 2 and publishes, A publishes 1. Every subscriber receives 2 before 1, the replay buffer appends in ARRIVAL order, and replayBuffer.since() reasons on monotonicity — so a resume from 2 hits the sinceID > newestID branch and answers 'gap too large', turning a healthy reconnect into a spurious sync_required, while a resume from 1 silently skips the late arrival. Fixed at the source with a Lua script: Redis runs it atomically on its single thread, so INCR and PUBLISH for one instance both complete before another's script begins, and publish order equals id order globally with no coordination on our side. The id rides as a '<id>|<json>' prefix rather than being edited into the JSON from Lua; the id is digits and the FIRST '|' separates, so a '|' in the body is unambiguous. A pleasant consequence: there is no longer a window where an id exists but the publish has not happened, so the fail-closed decision and the publish decision became the same decision. P2 — Stop() never closed the watch bus. That was survivable for MemoryBus, whose Close only drops channels; RedisBus holds a receive goroutine and a Redis subscription from construction, so it leaked both for the process's life. Closed after bg.Wait(), so a background producer cannot publish into a bus already tearing down. nits, all real, all in artifacts someone reads: - 'exactly-once delivery' was simply wrong. Redis pub/sub is at-most-once and the local send is deliberately non-blocking. The property the round trip actually buys is NO DOUBLE DELIVERY to the publishing instance; the comment now says that and names the replay buffer as the bounded recovery mechanism for the rest. - the Bus interface comment still said only MemoryBus existed. - cmd_server.go's session-presence note still claimed the same caveat as 'the watch bus directly above', which had just stopped applying. - session_presence.go now says delivery is fixed WHEN PAD_REDIS_URL is set, rather than unconditionally. Tests: the fail-closed assertion moved from 'nothing was delivered' — still true under the two-call version — to 'no bare INCR or PUBLISH was issued', which is what distinguishes atomic from not. Mutation-verified by splitting the script back into two calls. Added a decode round-trip test covering the new wire format, a '|' inside the body, and four malformed payloads, since that decoder consumes bytes from a channel any holder of the Redis credentials can publish to. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents,server): correct the targeted-push claim; close the bus before HTTP shutdown (Codex round 2) P2 — I claimed cross-instance DELIVERY was fixed. Half true, and the false half was mine to catch: handlers_push.go gates a session-targeted push on the LOCAL presence registry and skips the publish entirely when the id is not there, so a POST landing on A for a session held on B still delivers nothing. The bus would carry it; the gate means it never reaches the bus. Broadcast pushes and every other notification kind ARE fixed. I asserted that behaviour from reading the bus and session_presence.go without reading the push handler — the exact thing I hold myself to not doing. Corrected in all three places the claim was made (the package doc, session_presence.go, and the KindPush comment), with the correction recorded rather than quietly overwritten. The gate's own justification is now stale too, and worth more than a tweak: 'a target this instance cannot see is a guaranteed no-op' was TRUE under MemoryBus and is FALSE under RedisBus, where another instance may hold that session. Left in place deliberately — publishing unconditionally would fix delivery and immediately make delivered_sessions=0 a lie in the other direction, which is a question about what that field promises. It belongs with the shared-state SessionPresence that PLAN-2558 S3 already gates on: fixing the registry makes the snapshot right, and then the skip is correct again for its original reason. Both open halves collapse into that one implementation. P2 — the watch bus was closed only in Server.Stop(), which runs AFTER http.Server.Shutdown. The event bus is closed before Shutdown precisely so its SSE handlers unblock; the watch stream is the same shape, so an open one would have held Shutdown to its full 30s deadline. Now closed alongside eventBus, with the Stop() close kept as the path for other callers — both implementations are idempotent. nit — MemoryBus and RedisBus disagreed after Close: RedisBus handed a late Subscribe an already-closed channel, MemoryBus registered one nobody would ever close, so a consumer racing shutdown blocked forever. MemoryBus now matches, and its Close is idempotent, which the CLI's double close relies on. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): report a missed notification as a replay gap (Codex round 3) P2 — a divergence MemoryBus structurally cannot have. It assigns every id itself, so its replay buffer is contiguous and the only gap it can report is eviction. RedisBus receives ids over at-most-once pub/sub, so a blipped subscription can miss 101 and receive 102: the buffer holds a hole, is nowhere near full, and replayBuffer.since() answers a resume from 100 with just [102]. The consumer loses a nudge and is never told. RedisBus now tracks the id at which the sequence resumed after the most recent hole, and answers nil — the same signal eviction already gives, which the SSE handler already turns into sync_required — for a resume that would have to span it. Resumes that do not span it still replay normally, and sinceID=0 is treated as a fresh subscriber rather than a resume, so a hole nobody spanned is not turned into a spurious resync. The atomic publish script is what makes this readable: publish order is id order globally, so a non-consecutive id means MISSED, not reordered. Mutation-verified by disabling the check; the test fails on both the spanning resumes and would have failed the over-broad version too (it asserts the non-spanning resumes still work). Two residuals documented rather than fixed, both because the fix is the same shared-state SessionPresence that PLAN-2558 S3 gates on: - delivered_sessions is now wrong in BOTH directions for a broadcast push — the count is local while delivery is global, so a replica can report 1 while two sessions receive it, or 0 while a remote one does. No local arithmetic fixes that; it is asking one replica what all of them are doing. - the Redis channel and counter names are not deployment-scoped, so two installations sharing a Redis endpoint cross-feed (and picking different logical DBs does not help — pub/sub ignores them). Left flat to match internal/events rather than giving one of the two buses a prefix the other lacks; the rule is one Redis endpoint per installation, and relaxing it should cover both buses at once. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): a cold-started replica must report a gap too (Codex round 4) P1 — the round-3 hole check only fired BETWEEN two received messages, so it never fired for the first one. A replica restarting while Redis is already at 101 has an empty buffer; its first received message is 102, nothing looks like a hole, and a client reconnecting to that replica with Last-Event-ID 100 was handed [102] — skipping 101 exactly as silently as the case round 3 fixed, by a different route. Replaced contiguousFrom with knownFrom: the lowest id from which this instance's buffer is contiguous. SET on the first append (before which this instance knows nothing) and RESET on every hole (before which it no longer knows anything usable). One variable, both failures. The boundary is pinned in both directions, which is what stops this being an over-broad 'always gap after a restart': a resume from exactly the id before our first (101 when we started at 102) IS contiguous with our view and replays normally. Mutation-verified by disabling the cold-start arm. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): idempotent publish, confirmed subscription, and real Redis tests (Codex round 5) P2 — go-redis retries a command whose reply is lost to a network error, and the publish script was not idempotent: the same notification would be published twice under two different ids. Both copies look valid — ordered, distinct — so nothing downstream could tell them apart, and on the push path a duplicate is a duplicate DISPATCH into an agent harness. The script now takes a caller-generated token and SET NX's it, so a retry carrying the same arguments returns 0 without publishing. TWO THINGS THIS UNIT OWES ITS TESTS, both found within minutes of each other and both invisible to the hermetic ones: 1. The idempotency script shipped indexing ARGV[3] while Publish passed two arguments. Caught by re-reading, which is not a control worth relying on for the next Lua edit. 2. NewRedisBus returned before go-redis had established the subscription, so notifications published in that window were lost to this instance, silently. Surfaced as a test flake; the production shape is a rolling deploy, where a replica takes traffic before its subscription is live. The constructor now waits for the confirmation (bounded, and a failure is logged rather than fatal since Channel() re-subscribes on reconnect). So miniredis is now a test dependency, and the round-trip tests it enables cover what fanOutLocally-driven tests structurally cannot: the channel name, the KEYS/ARGV mapping, the id prefix wire format, the shared counter across two buses, cross-instance delivery (the actual bug), the dedupe token, and Close tearing down the SERVER-side subscription rather than just local channels. Verified by restoring the ARGV[3] bug: the round-trip test fails on it. The two findings I am NOT fixing here are unchanged and documented where the reasoning is met — the targeted-push gate and delivered_sessions are both consequences of the per-process presence registry, and both are closed by the shared-state SessionPresence that PLAN-2558 S3 gates on, not by anything in this package. make vuln: 0 vulnerabilities in imported packages. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): survive a Redis counter reset without replaying stale ids (Codex round 6) P2 — pad:watchevents_seq has no TTL but can still vanish: evicted under maxmemory, dropped by a FLUSHDB, or restored from an older snapshot. Ids then restart at 1 while this instance's ring still holds the hundreds. Keeping both is what corrupts replay — the two id spaces are not comparable, so a resume from 2 in the NEW space would be handed the stale 99/100/101 as though they were newer. A backwards id now drops the replay buffer and re-anchors knownFrom. Every resume from the old space then exceeds the newest id held and gets nil — the resync signal that is the only honest answer once the ids stopped meaning what the client thinks they mean — while clients in the new space keep working immediately. The test asserts BOTH halves, which is what makes it a detector rather than a description: a build that logged the reset and kept the buffer passes 'the old resume reports a gap' and fails 'the new resume never returns a pre-reset entry'. Mutation-verified on exactly that. Hardened while I was here: the epoch-reset path REBUILDS the buffer at runtime, so a bus constructed with a non-positive replay size would have turned a counter reset into a panic (newReplayBuffer(0)'s first append indexes a zero-length slice) rather than a resync. The constructor now normalizes. MemoryBus has the same trap for a caller passing 0; left alone as pre-existing and off this path, but named in the comment rather than silently fixed or silently ignored. nit — this file's header still claimed there was no miniredis dependency and no round-trip coverage, which the previous commit made false. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * docs(watchevents): actually correct the hermetic test header (Codex round 7) The previous commit's message claimed this fix. It did not contain it: the edit ran as one of two scripts in a single command, its assertion failed with a traceback, and the second script's success is what I read. The header kept saying there was no miniredis dependency and no round-trip coverage — both false since two commits ago, in the file a reader consults to find out what IS covered. That is the adjacent-success-signal failure exactly: a success line from the step next to the one I cared about. The tell was in the output and I walked past it, then asserted the change in a commit message. Recording it here rather than quietly fixing, because a commit that claims a change it does not make is worse than one that omits it. Verified this time by reading the file back and grepping for the stale phrases: zero. Round 7's other three findings are the documented residuals re-raised for the third time — the targeted-push gate, delivered_sessions, and the unnamespaced Redis keys. All three are dispositioned at the line a reader meets them, all three are consequences of the per-process SessionPresence registry or of matching internal/events' existing convention, and none is fixable inside this package. They stay open, on the record, and with the lead. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * docs(watchevents,cli): correct pad push --help; document the reset-window residual (Codex round 8) nit, and the one that stings — cmd_push.go's Long help still said pushes go over the 'in-memory watch-events bus'. That is the text a user reads when they run pad push --help, and it has been false since this branch's first commit. I have a standing pre-push step to grep the artifacts a CONSUMER reads for exactly this, and I ran it as a code search (watchevents.New) rather than a prose search, so --help never came up. The help now distinguishes broadcast (reaches every instance) from session-targeted (still resolved against the handling server) and names the bug. P2 — the counter-reset handling fires when the first post-reset notification ARRIVES, so there is a window between Redis losing the counter and the next publish in which this instance still replays old ids to a reconnecting client. Documented as accepted rather than closed: nothing local can detect the reset earlier (the counter is in Redis and we learn of it by receiving something), and the two shapes that would — a GET per resume, or a background poller — put network I/O on a latency-sensitive path or spend a goroutine and a round trip per tick forever against a condition measured in years. The exposure is redelivery of notifications the client already has, bounded by the window and self-healing on the next publish. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): a replica that has received nothing must not answer 'caught up' (Codex round 9) P1 — the coverage check was skipped entirely while knownFrom was still 0, so a bus that had received NOTHING answered any cursor with an empty-but-non-nil replay, which the SSE handler reads as caught-up. The scenario is a restart, not an exotic one: replica B comes up while Redis is at 100, id 101 is published before B's subscription is live, and a client reconnects to B with Last-Event-ID 100 before 102 arrives. B says caught-up, then delivers 102 live, and 101 is gone with nothing to tell anyone. The principle the code now follows: having received nothing is strictly LESS knowledge than 'contiguous from X', so it must produce at least as strong a signal. A non-zero cursor against an empty bus is a gap. Both sides pinned, because the over-broad version is a real risk here — answering every fresh connection with a resync would be its own bug. A sinceID of 0 is not a resume and still gets an empty replay rather than a gap. Mutation-verified on the new arm. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * docs(watchevents,cli): name the trailing-gap and shutdown trades (Codex round 10) Two findings that are decisions rather than defects, so both are documented at the line where the reasoning is met and taken to the plan instead of being settled unilaterally after ten review rounds. P1 as reported — the TRAILING gap. Everything the coverage bookkeeping does reasons about what this instance HAS received; it cannot see a notification missed at the END of the sequence. Hold 100, miss 101 to a disconnect, and a client resuming from 100 before 102 arrives is told caught-up. The hole only becomes visible when 102 lands, which is too late for that connection. What would reveal it is a GET of the sequence key: a value above lastAppendedID means ids exist we never saw, and a value BELOW it reveals the counter reset documented last round — one mechanism, both open windows. It is not done here because it is product-visible in the other direction: INCR happens before the message propagates, so the counter legitimately runs ahead of every instance for microseconds after each publish, and a strict comparison turns ordinary in-flight traffic into spurious sync_required responses with no principled tolerance to pick. A resync is recoverable and a lost nudge is not, which is the argument for doing it — but that is a call about how chatty the resync path should be. P2 — closing the watch bus before Shutdown drains handlers means a push already in flight can publish into a closed bus and still return 200 with pushed:true. Closing after would instead hold every shutdown to its 30s deadline on any open stream. eventBus already makes the same trade the same way; naming it rather than inheriting it silently. The honest fix is Bus.Publish reporting the drop so the handler can, which is an interface change and a different unit. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * feat(watchevents): close the trailing gap with a settle-window authority check (lead ruling) Lead's ruling on BUG-2651: a silently lost nudge is unbounded staleness, a spurious resync costs one redundant fetch, so the gap must not survive — and don't pick a magnitude tolerance, because the reason the counter legitimately runs ahead is in-flight propagation, which is TIME-bounded while a genuinely missed message never arrives. So the discriminator is time. On a resume (and only on a resume), read the shared counter: if it disagrees with this instance's high-water mark, wait out one settle window and read again. In-flight ids land during the beat and the resume proceeds normally; missed ones never do and the resume is answered with a gap. That converts an unprincipled 'how many ids behind is too many' threshold into a principled propagation bound. The same read also catches the counter having gone BACKWARDS, so the counter-reset window documented last round is closed by the same mechanism rather than needing its own — the arrival-time reset handling stays, because it is what repairs the instance's own state and what covers a bus with no reconnecting clients. Ordering matters and is documented at the call: the check runs WITHOUT the mutex (it sleeps and does network I/O, neither of which may happen inside the lock fan-out needs) and BEFORE subscribing rather than between subscribe and replay, which would reopen the double-delivery window SubscribeAndReplaySince exists to close. Nothing is lost by waiting first — fanOutLocally buffers regardless of subscribers. An unreadable counter falls back to local knowledge rather than failing closed: turning a Redis hiccup into a resync for every reconnecting client at once is a worse failure than the one being guarded against. EventsSince deliberately does NOT do this and says so — it is the local primitive the Bus interface already describes as being for tests and non-resuming callers, and making it sleep and hit the network would surprise every one of them. Five tests, each pinning a different half: the missed tail reports a gap; a current instance does NOT (the control that stops this being 'always resync'); an id arriving mid-settle is tolerated; an unreadable counter falls back; a fresh subscriber neither waits nor gets a gap. Mutation-verified twice — disabling the check, and removing the settle beat — each killed by the test that names it. Also filed at the lead's direction, so the two remaining cross-instance defects have tracked homes rather than only comments: BUG-2698 (targeted push resolved against local presence, plus the delivered_sessions inaccuracy — one shared-state SessionPresence closes both) and BUG-2699 (push returns 200 pushed:true for a dropped publish; Bus.Publish reports nothing, and fixing it is an interface change). Every disposition comment now cites its item. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): compare two FRESH reads, not one stale snapshot (Codex round 11) P1 — the settle beat re-read only the local side, so the comparison was against a counter SNAPSHOT taken before the wait. Id 2 arrives during the beat while id 3 is published and missed: the stale remote is still 2, the check declares convergence, and 3 is silently lost — the exact failure this whole mechanism exists to prevent, reintroduced inside it. P2 — the same staleness in the other direction. A GET can land just before a publish completes and report a value BELOW what this instance already holds; that never matches, so a client who had missed nothing got a full resync. Both are one defect: agreement between the authority and this instance has to be evaluated on two FRESH reads or it is not agreement. Now re-reads both sides after the beat, and treats any remaining disagreement as a gap in either direction — still behind means ids never reached us, still ahead means the counter was reset under us and our buffer belongs to a dead id space. Two tests, one per direction, each mutation-verified against the re-read-locally-only version: the second counter advance must produce a gap, and the raced read must NOT produce a resync. Without the second test the fix could have been 'always report a gap', which passes the first. Documented the cost side of the lead's ruling while I was in here: the condition is agreement, so a resume during CONTINUOUS publishing across the whole settle window can disagree every time and resync. Bounded by this stream being low-volume by design and resumes only happening on reconnect; if a workload makes it chatty, the answer is a longer window, not a magnitude threshold. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * fix(watchevents): an absent sequence key is zero, not unreadable (Codex round 12) P2 — the counter key can DISAPPEAR after this bus has seen ids (FLUSHDB, eviction). Reading redis.Nil as 'unreadable' meant falling back to local knowledge and cheerfully replaying an id space the authority no longer has — while the next publish starts again at 1 and collides with it. Absent is a VALUE. Returning zero-and-readable makes the case fall out of the ordinary comparison with no special branch: an instance holding 101 disagrees with an authority at 0, does not converge, and the resume is answered with a gap. A genuinely fresh deployment still agrees at zero and is not resynced — which is the control leg, and the reason 'absent means gap' would have been the wrong fix: it passes the first test while resyncing every first connection on a new install. P1 as reported — the equality fast path returning without settling — is not closed, and the comment now says why rather than leaving it to be re-found. A notification published AFTER that read and missed by this instance is invisible to any check made here, and settling anyway would not close it: the same race exists in the instant after the function returns. The check's honest scope is what was missed BEFORE the resume. A message missed after it is a property of at-most-once pub/sub with no per-connection ack, and the real answer is a durable stream (Redis Streams with consumer groups), not a longer wait. Mutation-verified: restoring redis.Nil to the unreadable branch fails the disappearing-counter test. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * feat(watchevents): epoch marker, so a reset that caught up is still a reset (Codex round 13) P2 — numeric detection is blind to a reset that has already climbed past this instance's high-water mark. Hold 100, lose the connection, the counter resets and ids 1-101 are published, and the only one that reaches us is 101 — the perfect contiguous successor of 100. Every arithmetic check passes, the buffer quietly mixes two id spaces, and a client resuming from OLD 100 is handed NEW 101 having silently missed the new space's 1-100. No amount of comparing numbers fixes that, because the question is not 'is this bigger' but 'is this the same sequence'. The publish script now mints an epoch once per id space (SET NX, so every publisher can offer one and the first wins) and carries it on every message; a change drops the buffer and re-anchors. The subtle half, and the one the first attempt got wrong: after an epoch change the cold-start rule must NOT admit its usual contiguous-with-our-view cursor. Within an epoch, a client at n.ID-1 is genuinely adjacent to our first id. Across one it is ambiguous — id spaces overlap, so that cursor may be the OLD sequence's n.ID-1, a different notification entirely — and admitting it hands them the new epoch's id as though it followed theirs, which is exactly the failure the epoch exists to prevent. Letting it back in one line later would have been a poor joke. The test caught it; the control leg (a cursor genuinely inside the new epoch is still served) is what stops the fix becoming 'resync everyone forever after any reset'. Wire format changed to <epoch>|<id>|<json>. Free of compat cost, checked rather than assumed: redis_bus.go does not exist on origin/main, so no released build produces or consumes the old shape. The numeric backward check stays — it covers a counter reset where the epoch key survived (eviction picks keys individually), and it is what repairs an instance with no reconnecting clients at all. Mutation-verified: ignoring the epoch change fails the new test. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * docs(watchevents): the wire format comments say <epoch>|<id>|<json> (Codex round 14) Three comments still described the pre-epoch format. Worth more than a tidy-up: a maintainer following them would conclude the epoch prefix is vestigial and remove it, which reintroduces exactly the cross-epoch replay corruption round 13 existed to fix. The publishScript comment now also says outright that the epoch is not decoration and points at redisWatchEpochKey before anyone considers it removable. Verified by grepping for the old shape rather than by trusting the edits — zero remaining, which is the check I owed after getting this wrong in round 7. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V * chore(nix): update vendorHash for the miniredis test dependency (BUG-2651) CI's Nix job failed on a fixed-output hash mismatch, and it is neither a flake nor a surprise once seen: nix/package.nix pins the vendored module set, and adding miniredis (plus gopher-lua, its Lua interpreter) to go.mod changed it. Regenerated per the procedure the file itself documents — build and read the 'got:' line. Run on CI rather than locally because this box has no nix; the hash is a content hash of the module set determined by go.mod/go.sum, so the same inputs produce it in either place. Worth naming as a gate lesson rather than just fixing: my pre-merge matrix had build, lint, test, test-pg, vuln and Codex, and none of them can see this. A dependency change has a SEVENTH consumer — the Nix packaging — and the only thing that checks it is the CI job that just did. Adding a dependency means checking the packaging, not only the security scan. Claude-Session: https://claude.ai/code/session_017jD6t1zjxGSq47SQpZfp1V |
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xarmian
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94441b4eb2 |
chore(nix): bump package version to 0.14.0 ahead of the release tag
Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt |
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xarmian
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ad1e919290 |
chore(deps): bump otel exporters to v1.45.0, clearing GO-2026-4985 from the Nix baseline (#1097)
* chore(deps): bump otel exporter cluster to v1.45.0 (GO-2026-4985) Clears GO-2026-4985 (otlptracehttp oversized response bodies, fixed v1.43.0) from the Nix artifact's accepted-advisories baseline. The whole cluster is transitive — pad has no direct otel usage; it arrives via fosite → ory/x → otelx, and fosite's latest (v0.49.0, already pinned) still requires the vulnerable exporter, so MVS override is the only path. Pulls otel core/metric/sdk/trace v1.44→v1.45, proto/otlp v1.0.0→v1.11.0, grpc v1.82.1→v1.83.0, genproto refresh. The jaeger exporter stays at v1.17.0 (its final release) and coexists. BUG-2085 deferred this bump pending a blast-radius assessment; the assessment is this diff, measured: go build ./..., go vet, full SQLite test suite, and golangci-lint all green; artifact-faithful proxy scan (GOTOOLCHAIN=go1.26.5, -s -w) reports 9/9 accepted with no new advisories. Remaining baseline: 8 stdlib (nixos-26.05 backport) + openpgp (no upstream fix exists). vendorHash refresh follows in the next commit via the PR's Nix CI run. Refs BUG-2085, BUG-2567. Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt * chore(nix): refresh vendorHash for the otel exporter bump Same flow as #1096: value from the PR's own failed Nix CI run. Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt |
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xarmian
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ff201939b9 |
chore(deps): bump x/image to v0.45.0, clearing GO-2026-6222 from the Nix baseline (#1096)
* chore(deps): bump golang.org/x/image to v0.45.0 (GO-2026-6222) Clears GO-2026-6222 (VP8L decode memory allocation) from the Nix artifact's accepted-advisories baseline — the advisory's fixed version is exactly v0.45.0. Pulls x/text v0.41.0, x/mod v0.38.0, x/tools v0.48.0 as transitive requirements. Verified against a build-faithful proxy (GOTOOLCHAIN=go1.26.5, -s -w): scan reports 10/10 accepted, no new advisories, no prune warnings. Full SQLite test suite and golangci-lint clean locally. nix/package.nix vendorHash refresh follows in the next commit, using the PR's Nix CI job as the builder (no local nix; the flow is the one package.nix documents). Refs BUG-2085, BUG-2567. Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt * chore(nix): refresh vendorHash for the x/image bump Codex round 1 P1: go.sum changed, so buildGoModule's fixed-output vendor derivation no longer matches the pinned hash. Value taken from the PR's own failed Nix CI run (the got: line), per the regeneration flow package.nix documents. Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt |
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xarmian
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cfad8d989e |
ci(nix): gate the Nix-built binary with govulncheck (BUG-2567) (#1095)
* ci(nix): gate the Nix-built binary with govulncheck (BUG-2567) The main CI govulncheck job scans a go-built binary, which honours go.mod's toolchain line — so the Nix artifact (GOTOOLCHAIN=local in nixpkgs, go 1.26.5 until nixos-26.05 backports 1.26.6) shipped with no vulnerability gate over it at all. Add nix/vulnscan.sh: binary-mode govulncheck against result/bin/pad, compared to nix/accepted-advisories.txt. Known advisories stay green and recorded in-repo; any NEW advisory fails the Nix job; a cleared advisory emits a warning annotation so the list gets pruned and BUG-2567 closed when the backport lands. The accepted list carries 11 entries, measured against a build-faithful proxy (GOTOOLCHAIN=go1.26.5, CGO_ENABLED=0, ldflags "-s -w"): the 8 reachable stdlib advisories from BUG-2565, plus 3 module-level entries that only appear because -s -w strips the symbols govulncheck needs for call-graph precision — a symbol-precise scan of the same source shows all three uncalled. Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt * ci(nix): guard vulnscan against empty or non-binary govulncheck output Codex round 2: an exit-0 govulncheck run that produced empty, truncated, or garbled JSON — or silently ran in a mode other than binary — was indistinguishable from a clean scan. Assert the stream's config message reports scan_mode=binary and make both jq extractions fail closed (exit 2, operational error). Also sharpen the accepted-list comment on the three module-level entries: on the stripped artifact govulncheck reports them as affected with symbol frames (it cannot prune the call graph, so every vulnerable symbol of an imported package counts as potentially called); the round-2 reading of "degrades to module-level reporting" as functionless findings was wrong, verified against the actual JSON stream. Claude-Session: https://claude.ai/code/session_01BhQoeaWXxJbvw86ezzK8dt |
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xarmian
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f9195c5b09 |
ci: make the go test timeout explicit everywhere (TASK-2545) (#1089)
* ci: make the go test timeout explicit everywhere (TASK-2545) The v0.13.0 release pre-flight died on `panic: test timed out after 10m0s` in internal/store, on a commit whose Go tree was identical to a green run an hour earlier. Nothing hung — the package's runtime simply crossed a budget nobody had chosen. `go test` without -timeout uses a 10m per-test-binary default. This repo raised the two RACE steps to 45m twice as the suite grew (BUG-1371 30m, BUG-1913 30m→45m), each time with a careful comment — and each time left their non-race siblings on the silent default. Three steps were still running on it, including the release gate: ci.yml "Run tests" (SQLite) ci.yml "Run tests against PostgreSQL" (the one that panicked) release.yml "Run tests" (the release gate itself) All three now carry -timeout=45m, matching the race legs so the file has one number, with comments saying it is a hang-catcher rather than a performance budget and that job wall-clock is the signal for "the suite got slow". Measured at |
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xarmian
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b87b3028e7 |
chore(nix): bump package version to 0.13.0 ahead of the release tag
Claude-Session: https://claude.ai/code/session_01CXHLbTC1AiwSC87xwThRGT |
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xarmian
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a66c9ab402 |
chore(nix): bump version to 0.12.0
Pre-tag version sync required by PLAYB-1160 step 1 — the flake builds from source at whatever ref the user names, so the tag snapshot must self-report the version being tagged. Without this, binaries from 'nix run github:PerpetualSoftware/pad/release' report 0.11.0 forever. Refs TASK-2445. |
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xarmian
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a62a50d672 |
fix(nix): refresh vendorHash for go-minor-and-patch group bump
Claude-Session: https://claude.ai/code/session_01RNcrc3CtXwJwreubtHTgN6 |
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xarmian
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0d31bae61b |
fix(nix): refresh vendorHash for current main's go.sum
The hash was computed against July-27 main; go.sum has since moved (dependabot + mainline work), and CI builds the PR merged with main. Claude-Session: https://claude.ai/code/session_01RNcrc3CtXwJwreubtHTgN6 |
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Claude
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a65bfcc4d4 |
fix(nix): skip DNS-dependent webhook validation subtests in checkPhase
ValidateWebhookURL does a real net.LookupIP as an SSRF guard, and four TestValidateWebhookURL subtests exercise that path against example.com. That works fine in CI (real network) but fails under a properly sandboxed Nix build (no network), which is what real users hit. Skip just those subtests; the rest of the package's tests (invalid schemes, private-IP rejection, etc.) need no network and keep running. |
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Claude
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02b302519e |
feat(nix): add flake packaging for pad with CI build
Adds a Nix flake exposing the pad binary as packages.default (buildGoModule + importNpmLock for the embedded SvelteKit UI), a devShell, and flake checks (package build with `go test ./...`, plus a `pad --version` smoke test). nix/package.nix is written nixpkgs-submission-ready (no flake-specific inputs) so it can later be adapted for pkgs/by-name. Also adds a GitHub Actions workflow that runs `nix flake check` and `nix build` on push/PR, and documents `nix run` / `nix profile install` / `nix develop` in the README. |