feat(swift-sdk)!: freeze schemas only after App Store publication - #4818
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Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe Swift SDK now keeps a V1 baseline and V2 live schema. New tooling validates and records App Store schema releases, generates immutable snapshots and fixtures, tests published stores, and runs through a manual GitHub Actions workflow. ChangesSwift schema runtime
Schema release registry
App Store release automation
Workflow and procedure
Priority: ➖ Normal Estimated code review effort: 5 (Critical) | ~120 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Operator
participant FreezeWorker
participant iOSReleaseData
participant SwiftSDK
participant GitHub
Operator->>FreezeWorker: Submit release_id and data_commit
FreezeWorker->>iOSReleaseData: Validate publication proof and fixture
FreezeWorker->>SwiftSDK: Generate and check schema snapshot
FreezeWorker->>GitHub: Create or reconcile draft pull request
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## v4.2-dev #4818 +/- ##
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- Misses 61960 109552 +47592
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Request changes. The idea — freeze a schema only once it is actually published, instead of on every dev shape change — is the right one, and the machinery around it is careful: the permitted_change allowlist matches the generator's four output locations exactly, the immutability guards (byte comparison of immutable_files plus the before_registry schemas/releases comparison) do catch deletion and rewriting of existing snapshots, path traversal is blocked by the COMPONENT/DIGEST patterns before any git lookup, git merge-base --is-ancestor plus the origin-URL check pins the proof to the fixed data branch, and .copy("Fixtures") covers the new releases/ subdirectory. I also confirmed no dangling references to DashSchemaV3/V4/V5, v2ModelTypes…v4ModelTypes or dash-v2…v5.store remain.
What blocks it is the transition, not the design: as committed, this PR removes more drift protection than it adds, and reuses a shipped version identifier for a different shape. Three inline. Everything after them is a non-blocking recommendation.
I verified the central claims against the branch rather than trusting a summary. Before this PR (ba01d4cd) the fixture set was dash-v1 … dash-v5 with dash-v5 bound to DashSchemaV5, and Schema.Version(5, 0, 0) was the live identifier. At this head the fixture set is dash-v1 alone, bound to frozen DashSchemaV1, the live identifier is Schema.Version(2, 0, 0), and DashReleasedSchemaRegistry.generated.swift contains an empty array.
Non-blocking recommendations:
1. testAcceptedBaselineRemainsInTheMigrationPlan was weakened — DashModelMigrationTests.swift:205. Replacing the exact list comparison with schemas.prefix(1) == ["1.0.0"] plus a uniqueness check means a later change that drops DashSchemaV2 from the plan, reorders it, or swaps in a different enum declaring 2.0.0 passes — and also passes testTheLiveSchemaIsTheMigrationPlansLastVersion. The intended replacement guard lives in DashReleasedSchemaTests, which is inert while the registry is empty, so right now nothing stops a released version from leaving the plan.
2. The V1 doc comment contradicts the PR's premise — DashModelContainer.swift:177. The PR body says "The accepted V1 database remains supported by direct migration into live V2", but the DashSchemaV1 doc comment directly above that line still says V1's identifier "has accumulated several destructive dev-only changes" (unique-attribute retypes String→Data, removed relationship inverses, PersistentAccount.wallet optionality flip) and concludes "any pre-existing dev store will fail to open and get rebuilt from scratch". The committed dash-v1.store was written at 5f58417079, not by the published binary, so nothing in the tree demonstrates that a genuinely published V1 store migrates. Either the accepted-baseline premise the whole automation rests on needs restating, or that doc comment is stale and should be fixed here.
3. DashReleasedSchemaFixture: Sendable holds a non-Sendable member — DashReleasedSchemaTests.swift:7. let version: any VersionedSchema.Type produces "stored property 'version' of 'Sendable'-conforming struct has non-Sendable type" under -swift-version 6. It is only a warning because the test target lacks -warnings-as-errors (the integration target has it) — it becomes a build failure the day that flag goes package-wide.
4. sqlite3 connections are never closed — freeze_schema_models.py:450 and freeze_appstore_release.py:280. with sqlite3.connect(uri, uri=True) as database: commits or rolls back a transaction; it is not a closing wrapper. validate_fixture_description runs once per registry entry from render_all, so every committed fixture stays open for the process lifetime. Harmless on POSIX, but it will block TemporaryDirectory cleanup on a non-POSIX runner and leaks handles as the registry grows — contextlib.closing(...) or an explicit close().
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A few clarifications on the remaining review recommendations, checked against this PR's current head:
The empty-registry visibility, stale V1 documentation, and explicit SQLite connection closing recommendations are valid and remain to be addressed. In particular, an empty publication registry should make the two publication-specific tests skip, not fail; the independent runtime checksum test should continue running. This clarification does not dismiss the valid parts of the review. |
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In `@packages/swift-sdk/scripts/freeze_schema_models.py`:
- Line 451: Re-indent the changed Python blocks around the sqlite connection in
freeze_schema_models.py and the corresponding test and App Store release script
blocks to use the configured two-space indentation, preserving their existing
structure and behavior.
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packages/swift-sdk/Sources/SwiftDashSDK/Persistence/DashModelContainer.swiftpackages/swift-sdk/SwiftTests/SwiftDashSDKTests/DashModelMigrationTests.swiftpackages/swift-sdk/SwiftTests/SwiftDashSDKTests/DashReleasedSchemaTests.swiftpackages/swift-sdk/scripts/freeze_appstore_release.pypackages/swift-sdk/scripts/freeze_schema_models.pypackages/swift-sdk/scripts/test_freeze_appstore_release.pypackages/swift-sdk/scripts/test_freeze_schema_models.py
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- packages/swift-sdk/Sources/SwiftDashSDK/Persistence/DashModelContainer.swift
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Third pass. The XCTSkipIf on the empty registry and the rewritten testMigrationPlanContainsBaselinePublishedAndLiveVersionsInOrder both look right — thanks, those were the two I cared most about.
I also want to withdraw one of my earlier objections. I said reusing 2.0.0 for the collapsed live schema was a blocker because old V2/V3/V4/V5 stores would stop resolving. I went back and dated it: DashSchemaV2 landed in the SDK on 2026-08-26 (00bd049c74), while the most recent dashwallet-ios release tags are v8.6.0 (2026-06-18) and tf-9.0.0__11 (2026-07-23), and there was no public-beta group for 9.1.0 and later. So V2–V5 only ever existed on internal testers' devices, and those get wiped routinely. "Databases from those old development builds are unsupported" is a fair call, and the identifier collision only touches the same population. I'd still spend the free 6.0.0 — schema-releases.json is keyed by this identifier permanently, so an unambiguous record costs nothing here — but it is your call and it does not block the merge.
One thing I do still want to resolve before this lands, inline on the fixture list.
Two questions while you are in here:
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After the first freeze, what catches a shape change made under the still-current
2.0.0? As far as I can tell the discipline lives only in the doc comment.testPublishedSnapshotsAndRuntimeVersionsMatchCapturedStorescompares a frozen snapshot with a frozen fixture,testPublishedStoresMigrateAndRemainWritableThroughLiveTypeswill happily migrate an additive change and pass, and the plan test compares version lists rather than shapes. Am I missing a guard somewhere? -
Is it deliberate that the app opens the Platform store without the migration plan?
SwiftDashSDKHost.buildModelContainerbuildsModelContainer(for:configurations:)directly, whileDashModelContainer.create— the path the tests use, includingtestV1StoreMigratesToV2AndBackfillsTheKeyLimitColumns— passesmigrationPlan: DashMigrationPlan.self. The V1→V2 delta is additive so implicit migration should cover it, but the next release runs that migration on every App Store device, and it would run it through the untested path. If relying on implicit migration is the intent, it is worth saying so inSCHEMA_RELEASES.md, because then CI is the only thing standing behind the frozen snapshots.
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Final validation — Phase 1 + Phase 2
The V1-to-V2 consolidation respects the stated App Store-only compatibility boundary, and published-schema tests compare both snapshots and registered runtime schemas against captured fixtures. Verification found three blockers: a Swift 6 test-compilation error, execution of mutable draft-branch code with release credentials, and missing historical source commits in subsequent verification checkouts. All 43 Python tests and deterministic generation passed with Python 3.9.6; the connection-mock test failed on Python 3.13.14 and 3.14.6, and live inventory validation remains a non-blocking capture-path gap.
🔴 3 blocking | 🟡 2 suggestion(s)
Review provenance
Source: reviewer 1: muse-spark-1.3-contributor (agent: phase1-reviewer, role: architecture-layering); reviewer 2: muse-spark-1.3-contributor (agent: phase1-reviewer, role: security-auditor); reviewer 3: gpt-6-astra (agent: phase2-reviewer, role: general); reviewer 4: gpt-6-astra (agent: phase2-reviewer, role: architecture-layering); reviewer 5: gpt-6-astra (agent: phase2-reviewer, role: security-auditor); final verifier: gpt-6-astra (agent: astra-verifier, role: final-verifier)
- Triage:
criticalbygpt-6-astra(effort low) — The intricate persistence overhaul directly changes storage migrations in packages/swift-sdk/Sources/SwiftDashSDK/Persistence/DashModelContainer.swift, replacing the V1–V5 migration history with a direct V1→V2 path and removing intermediate schemas while introducing publication-driven snapshot validation. - Phase 1 reviewers:
muse-spark-1.3-contributor— architecture-layering (completed, effort xhigh); agentphase1-reviewer,muse-spark-1.3-contributor— security-auditor (completed, effort xhigh); agentphase1-reviewer - Phase 1 model:
muse-spark-1.3-contributor— not quota-gated; passed overgemini-3.8-flash-high(lane failed),glm-5.3-flash(not used above high effort; tier asks max) - Fresh verifier:
gpt-6-astra— final-verifier; agentastra-verifier - Phase 2 reviewers:
gpt-6-astra— general (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— architecture-layering (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— security-auditor (completed, effort xhigh); agentphase2-reviewer
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These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/swift-sdk/scripts/freeze_appstore_release.py`:
- [BLOCKING] packages/swift-sdk/scripts/freeze_appstore_release.py:281-284: Do not execute the draft branch's generator with release credentials
When the deterministic automation branch exists, prepare() checks it out and merges the base into it, preserving branch-only generator changes. This invocation and the later generation/check invocations therefore execute that branch's freeze_schema_models.py. run() passes env=None, so these subprocesses inherit SCHEMA_RELEASE_TOKEN from the workflow. A credential with Platform contents-write access can modify the draft branch's generator, and the next legitimate retry will execute it with the more privileged cross-repository release token—even during a dry run. The later changed-file allowlist runs after execution and does not inspect already-committed branch changes. Execute a trusted generator outside the mutable draft checkout, isolate its imports, and remove release credentials from its subprocess environment; treat the draft checkout as data and output.
- [BLOCKING] packages/swift-sdk/scripts/freeze_appstore_release.py:281-284: Make recorded source commits available in subsequent verification checkouts
The explicitly supported force-updated-history case fetches the released source SHA only into this temporary clone. Recording the SHA in schema-releases.json does not make that commit reachable from the generated snapshot branch. The frozen-schema CI job performs a fresh fetch-depth: 0 checkout and immediately runs --check; render_all() then calls read_inventory() and git show for every registered snapshot's source commit. Full-history fetching does not retrieve unreachable commits merely mentioned in JSON, so the snapshot PR fails verification when its source commit has no fetched ref. Subsequent worker runs also fetch only the current manifest's SHA, leaving earlier snapshots vulnerable to the same failure. Ensure verification checkouts obtain every registered source SHA, or retain those commits through durable Git references.
In `packages/swift-sdk/SwiftTests/SwiftDashSDKTests/DashModelMigrationTests.swift`:
- [BLOCKING] packages/swift-sdk/SwiftTests/SwiftDashSDKTests/DashModelMigrationTests.swift:36: Avoid storing Schema.Version in a nonisolated static constant
The package explicitly uses Swift 6 language mode, but SwiftData.Schema.Version is not Sendable in Xcode 16.4 / Swift 6.1.2. Typechecking this declaration with that toolchain reproduces the error that acceptedBaselineVersions is not concurrency-safe because [Schema.Version] may have shared mutable state. This prevents the test target from compiling before migration tests can execute. The author's discussion of a different VersionedSchema metatype declaration on Swift 6.3.3 does not address this stored array on the older toolchain. Make the array a computed property; the proposed replacement typechecks successfully under the same Swift 6 settings.
In `packages/swift-sdk/scripts/test_freeze_appstore_release.py`:
- [SUGGESTION] packages/swift-sdk/scripts/test_freeze_appstore_release.py:255: Create an explicit cursor mock before configuring fetchone
On Python 3.13.14 and 3.14.6, checked_database.execute.return_value evaluates to sentinel.DEFAULT for this wrapped sqlite3 method. Accessing .fetchone therefore raises AttributeError before the corrupt-fixture path or connection-close assertion runs. Both failures were reproduced locally. The same 43-test suite passes on Python 3.9.6, so this is a Python-version-dependent test defect, not evidence that every run or the current Ubuntu CI interpreter necessarily fails. Explicitly assign a cursor mock for the corrupt case while retaining the wrapped connection so the test still verifies that the real connection closes.
In `packages/swift-sdk/scripts/freeze_schema_models.py`:
- [SUGGESTION] packages/swift-sdk/scripts/freeze_schema_models.py:387-390: Validate live inventory completeness at the capture boundary
The inventory-to-entity membership check runs only when rendering a historical snapshot. --check examines registered historical schemas, while DashSchemaReleaseCaptureTests captures the live store and exports its metadata without consulting schema-models.json. Adding a live model but omitting its inventory entry can therefore pass these checks and produce capture artifacts that the publication worker later refuses to freeze. Updating the inventory afterward cannot repair the inventory at the pinned release SHA. Add a non-mutating capture/preflight check comparing the captured entity membership with the inventory from the same commit, and expose it to the upload workflow. This validates release readiness without freezing development schemas or changing the publication-only registration policy.
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Addressed the verified review findings in 10e1062 and companion iOS commit 35d0d3 (#1136).
Two claimed gaps were checked rather than implemented again: published-schema tests already compare runtime and frozen schemas to release evidence, and iOS capture already checks live inventory membership. A fresh published-V2/live-only-property experiment fails exactly on runtime drift; missing/extra inventory regression cases now make the capture check explicit. V1 is unchanged; unpublished beta layouts remain unsupported as agreed. Validation: 48 Python tests, deterministic generation, 13 Release arm64 SDK cases (11 pass, 2 expected skips), clean Replies on each thread give the evidence and disposition. Production initialization/publication/dispatch remains unrun; first-release end-to-end verification is documented. Source-tag protection and GitHub failure notification setup are rollout requirements. Reviewers still need to re-review the new commits; resolving threads does not replace their approval. |
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In @.editorconfig:
- Line 15: Update the indentation override in the editor configuration so Python
files use the repository-standard two-space indentation, or remove the override
entirely; retain four-space indentation only for Rust files.
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Re-review — Final validation — Phase 1 + Phase 2
The complete PR range at 10e1062 has no remaining blocking findings: four prior findings are fixed, and the inventory-capture finding is withdrawn after independently verifying the companion upload path. One non-blocking issue remains: dry runs skip an existing source-tag integrity check that write runs enforce. Validation passed all 48 Platform Python tests, seven pinned companion capture tests, deterministic generation of 36 files, whitespace checks, and the Swift 6 strict-concurrency probe; the full native SDK suite and production publication flow were not rerun.
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Review provenance
Source: reviewer 1: muse-spark-1.3-contributor (agent: phase1-reviewer, role: general); reviewer 2: muse-spark-1.3-contributor (agent: phase1-reviewer, role: architecture-layering); reviewer 3: muse-spark-1.3-contributor (agent: phase1-reviewer, role: ffi-engineer); reviewer 4: muse-spark-1.3-contributor (agent: phase1-reviewer, role: security-auditor); reviewer 5: gpt-6-astra (agent: phase2-reviewer, role: general); reviewer 6: gpt-6-astra (agent: phase2-reviewer, role: architecture-layering); reviewer 7: gpt-6-astra (agent: phase2-reviewer, role: ffi-engineer); reviewer 8: gpt-6-astra (agent: phase2-reviewer, role: security-auditor); reviewer 9: gpt-6-astra (agent: phase2-reviewer, role: general); reviewer 10: gpt-6-astra (agent: phase2-reviewer, role: architecture-layering); reviewer 11: gpt-6-astra (agent: phase2-reviewer, role: ffi-engineer); reviewer 12: gpt-6-astra (agent: phase2-reviewer, role: security-auditor); final verifier: gpt-6-astra (agent: astra-verifier, role: final-verifier)
- Triage:
criticalbygpt-6-astra(effort low) — The intricate schema-history consolidation directly changes storage migrations in packages/swift-sdk/Sources/SwiftDashSDK/Persistence/DashModelContainer.swift, replacing V1–V5 support with V1 → V2 and removing historical model definitions, making persisted-data compatibility a critical review surface. - Phase 1 reviewers:
muse-spark-1.3-contributor— general (completed, effort xhigh); agentphase1-reviewer,muse-spark-1.3-contributor— architecture-layering (completed, effort xhigh); agentphase1-reviewer,muse-spark-1.3-contributor— ffi-engineer (completed, effort xhigh); agentphase1-reviewer,muse-spark-1.3-contributor— security-auditor (completed, effort xhigh); agentphase1-reviewer - Phase 1 model:
muse-spark-1.3-contributor— not quota-gated; passed overgemini-3.8-flash-high(lane failed),glm-5.3-flash(not used above high effort; tier asks max) - Fresh final gate: an independent Phase-2 review ran after iterative findings were reconciled
- Fresh verifier:
gpt-6-astra— final-verifier; agentastra-verifier - Phase 2 reviewers:
gpt-6-astra— general (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— architecture-layering (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— ffi-engineer (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— security-auditor (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— general (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— architecture-layering (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— ffi-engineer (completed, effort xhigh); agentphase2-reviewer,gpt-6-astra— security-auditor (completed, effort xhigh); agentphase2-reviewer
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These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/swift-sdk/scripts/freeze_appstore_release.py`:
- [SUGGESTION] packages/swift-sdk/scripts/freeze_appstore_release.py:385-390: Validate existing source-tag targets during dry runs
This return skips both source-tag creation and the read-only integrity check inside retain_source(). fetch_sources() fetches tags and verifies that each source SHA identifies a commit, but does not verify that swift-schema-source/<SHA> points directly to that named commit. Using the local integration fixture, a dry run succeeded with a conflicting tag while a write run against identical state failed with “Source retention tag points to a different object.” The documented validation preflight therefore misses an already-detectable conflict. Separate existing-tag validation from tag creation and run validation in both modes, including the already-merged-release path. Missing tags should remain permitted during dry runs without creating them.
Merge v4.2-dev while keeping the accepted V1 baseline and live V2. Preserve contract-bound variants and verify their V1 migration without restoring unpublished V3-V5 schemas or fixtures. Pass stored contract values to the token distribution cache so generated historical model copies can use the same helper as live models.
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Re-reviewed at 7de890a8. DashLegacySchemaBridge is a real answer to the migration question rather than a patch over it — snapshot, integrity check, migrate a copy, validatePreservation, transactional install, a journal that survives an interrupted run. The care in it is obvious and I am not arguing with the approach.
Four things inline. Three are in the new bridge and are about what happens to stores it was never meant to touch; the fourth is the fixture guard I raised last round, which is still open and which the bridge makes more expensive rather than less.
One more for the record: the companion dashwallet-ios#1136 now calls DashModelContainer.create(url:), an overload that does not exist on v4.2-dev. This PR has to land and the app has to repin before that one can compile, so please keep them in that order.
Two non-blocking notes:
The retained backup is never reclaimed. After a successful bridge only candidate.store is removed (:137); the operation directory keeps original.store — a full copy of the wallet database — under <store>.legacy-v2-backups/<uuid>/ indefinitely. No code path deletes it and SCHEMA_RELEASES.md only says it is retained for recovery. That permanently doubles the on-device footprint for a one-shot migration, on an app that already has a live "no space left on device" failure mode (a truncated sync that never re-matches filters). A retention rule — next successful launch, or an age cutoff — would close it.
PRAGMA journal_mode=DELETE is not checked (DashLegacyStoreSQLite.swift:119). execute() only inspects sqlite3_exec's return code, but a journal_mode pragma SQLite declines to apply still returns SQLITE_OK and reports the current mode as a result row. If a connection still holds the WAL, checkpoint(candidate) reports success while the candidate is still in WAL mode, and the durability loop then fsyncs only the main files. Reading the returned row and asserting it says delete would make that airtight.
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Addressed the verified review findings in five separate commits:
Validation: 61 Python tests; 33 Release arm64 SDK cases (31 passed, 2 expected empty-registry skips); generator/historical-fixture checks; unchanged V1; actionlint; and the companion app clean build. The synthetic 84.3 MiB / 10,000-transaction migration measured 4.934 seconds, with a maximum main-actor heartbeat gap of 13.1 ms. No real affected wallet or physical-device performance claim is made. Inline replies explain the fixes and the existing published-runtime drift guard. Platform still needs to land before the companion iOS change. No production workflow, upload or merge was performed; reviewer approval and first-publication end-to-end verification remain required. |
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Re-reviewed at 852d825b. Five of the six things I raised last round are properly closed, and a couple of them more thoroughly than I asked for:
- the lock and the fatal
identityread went away together — the new early path does(try? identity(at: url)).flatMap { try? needsBridge(...) } ?? falseand returnsordinary()without takingStoreLockat all when no migration is possible, which is exactly right; - recovery self-heals now: the "backup is missing" guard is gone,
current == journal.sourcevalidates the original and clears the attempt, andformatVersion: 2carriesdestinationDatain the journal so the destination case no longer depends on the candidate file surviving; PRAGMA journal_mode=DELETEreads the returned row and asserts it saysdelete;reclaimCompletedBackupsclears the retained operation directories on the next clean open, with a symlink check.
Two inline below — one is the fixture guard I have raised before, the other is a recovery hole the rework did not cover. The rest is non-blocking.
create(cloudKit:groupContainer:) never got the async twin (DashModelContainer.swift:109). It can now run the whole bridge — roughly eight to ten passes over the database between the three file copies, three quick_checks, three rawDigest reads, two validatePreservation scans and the evidence scan, plus the SwiftData migration itself. Your own benchmark is 4.9 s for 84 MiB. dashwallet-ios goes through createAsync(url:) so it is fine, but SwiftExampleApp/SwiftExampleAppApp.swift:107 calls this one inside init() on the main thread and fatalErrors on failure. Any other SDK consumer doing the same gets a multi-second main-thread stall on a large legacy store. Worth either an async twin or a doc comment saying plainly that this overload can block for seconds.
No disk-headroom preflight. The bridge needs roughly twice the store size free for backup plus candidate, and on a full device the copy fails with a bare SQLite error. We have a live "no space left on device" failure mode in this app already; a volumeAvailableCapacityForImportantUsage check with a clear error would turn a confusing failure into an actionable one.
validatePreservation digests Z_PK raw (DashLegacyStoreSQLite.swift:183). Z_ENT is normalised through Z_PRIMARYKEY so renumbering is tolerated, and Z_OPT is skipped, but Z_PK and the relationship foreign keys are compared as-is. Core Data only preserves Z_PK when the lightweight migration can be done in place; a delta that forces the copying path reassigns them, and then a perfectly faithful migration is rejected with "Migration changed existing data in …" and the wallet does not open. The V1→V2 delta is additive so this should not fire today, but the asymmetry with the Z_ENT handling reads like an oversight, and the message would send diagnosis in the wrong direction.
sqlite3_backup_step reports everything as contention (DashLegacyStoreSQLite.swift:86). Every non-SQLITE_OK return becomes "Database is busy; cannot acquire migration write lock", and sqlite3_errmsg is discarded. A page-size mismatch returns SQLITE_READONLY; I/O and OOM have their own codes. All of them currently tell the user to close other users of the store.
The bridge is silently off for CloudKit containers (:120). bridgeLegacyStore: !cloudKit is a deliberate exclusion documented in SCHEMA_RELEASES.md:36, but a legacy 1.0.0 store with CloudKit enabled just gets 134504 with nothing to say the rescue was skipped rather than attempted.
Two in the worker: json.load(response) at freeze_appstore_release.py:207 sits inside the retry loop, but json.JSONDecodeError is caught by neither except and main() only catches (ReleaseError, OSError, sqlite3.Error) — a truncated response or an HTML error page ends the workflow with a raw traceback and no retry. And :309 treats pulls[0] as the newest PR while pull_requests() never passes sort/direction, relying on GitHub's unstated default; passing them explicitly costs nothing.
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Checked the remaining review against the code and addressed the valid failure paths:
Other dispositions:
No merge, App Store upload or production initialization was performed. Validation at a800920: 65 Python tests; 36 Release arm64 SDK cases (34 passed, 2 expected skips); frozen/historical generation checks; unchanged V1; clean companion dashpay build. App production end-to-end and physical-device wallet validation remain outstanding. |
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Re-reviewed at a8009209. The disk preflight, the sqlite3_backup_step diagnostics, the json.JSONDecodeError handling and the recovery-message clarifications all landed, and the early throw for "store gone, journal pending" is gone — that path now falls through to recovery instead of refusing outright.
Two inline. The first is new and comes out of the disk preflight you just added; the second is the fixture guard, for the last time.
Non-blocking, the rest:
Recovery still cannot handle a missing store file. The unconditional throw is gone, but with the store absent and active.json present, control now reaches recoverIfNeeded, whose first act is let current = try identity(at: url) — which throws on a file that is not there. So the state is still terminal, just with a less specific error, and original.store sitting in the operation directory is still never consulted. SwiftDashSDKWalletWiper removing the sqlite without the sibling backup directory would produce exactly this. Restoring from the backup when its identity matches journal.source would make it recoverable.
clearJournal after the container is live (:158). It runs after ordinary() has already returned a usable container, so an fsync/removeItem failure throws out of open() and discards a container for a store that migrated and installed correctly. And if the process dies between the promotion and the clear after the app has written anything, the next launch takes the current == journal.destination branch, compares SQLite.evidence(at: url) against the recorded evidence, finds it moved on, and throws "Installed migration data differs from the validated candidate" on every launch thereafter. Small window, permanent result. Clearing non-throwing, and treating "destination matches but data has moved on" as success, would close both.
sqlite3_busy_timeout(handle, 0) (DashLegacyStoreSQLite.swift:43) leaves every connection — including the one doing the final promotion — with the busy handler disabled, so any transient lock holder turns the whole migration into a hard failure with no retry. A short timeout on the promotion connection, or a bounded retry around the install, makes that survivable.
Same-process flock contention (DashModelContainer.swift:143). storeOpenQueue serialises createAsync calls, but a create(url:) on another thread concurrent with one of them hits LOCK_NB and fails with "Another process is opening this database" — misleading for a same-process collision, and a hard error where a short wait would do.
pulls[0] still decides the merged check (freeze_appstore_release.py:312) on a state=all multi-page listing with no explicit sort/direction. any(pr.get("merged_at") for pr in pulls) matches the comment's intent.
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| if !needsMigration && !FileManager.default.fileExists(atPath: marker.path) { | ||
| let container = try ordinary() | ||
| reclaimCompletedBackups(at: root) | ||
| return container | ||
| } |
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Blocker, and it comes from the disk preflight added in this same round.
reclaimCompletedBackups has exactly one call site — this one — and it is on the path that requires needsMigration == false. So the cleanup only ever runs after the store has been migrated. While the store is still legacy, nothing reclaims anything.
Now put that next to the defer at :96: it only unwinds within a live process. If the app is killed between createProtectedFile(backup) and writeJournal — which is the multi-second window of two whole-file copies and the SwiftData migration, i.e. precisely when the iOS watchdog kills this app on a large wallet — the <uuid>/ directory survives with original.store and possibly candidate.store, and the store is still legacy. The next launch allocates a fresh UUID directory and nothing enumerates the old ones.
Each kill therefore leaves roughly another one-to-two store-sizes on disk, and requiredFreeSpace asks for about 4× the store plus margin. On an 84 MiB-class wallet a few kills are enough to make that check unsatisfiable, and from then on every launch fails with insufficientDiskSpace — for space consumed by the bridge's own abandoned attempts, with no in-app way to reclaim it. The preflight converts what used to be wasted space into a permanent lockout.
Two things would settle it: sweep stale UUID directories on the bridge path too (under StoreLock, so an in-flight attempt is not the one being deleted), and have requiredFreeSpace count reclaimable bytes as available.
Related, and worth fixing together: this call runs before StoreLock is taken at :53, and it removes every UUID directory under root guarded only on the marker being absent — but the marker is written late, at :144. With an app-group store shared by an extension, a process that already sees the store as migrated can delete the scratch directory of a process that is mid-copy, which then fails at SQLite.copy(from: backup, to: candidate). That is the exact class of collision the lock exists to prevent, so the reclaim belongs inside it.
| /// `testWriteTheLiveSchemaFixtureStore`. Every entry has a fixture, | ||
| /// the live one included. | ||
| private static let shippedVersions = ["1.0.0", "2.0.0", "3.0.0", "4.0.0", "5.0.0"] | ||
| private static var acceptedBaselineVersions: [Schema.Version] { [Schema.Version(1, 0, 0)] } |
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This is the fifth round I have raised the live-schema fixture, so let me change what I am asking for.
The state is unchanged: fixtures is dash-v1 alone, so testFrozenVersionsBuiltAfterTheLiveSchemaHashLikeTheStoresTheyShipped builds a frozen schema and compares it against the store that same frozen schema wrote. Nothing builds the live models and compares them to a recorded shape, and needsBridge accepts only 1.0.0, so a shape change made under a frozen 2.0.0 after 9.1.x ships is 134504 on every launch for every App Store user, unrescued.
If that is a deliberate call — the discipline lives in the doc comment, and you are content that the next person will follow it — then say so and I will stop bringing it up. In that case I would ask for one thing instead: write the risk into SCHEMA_RELEASES.md in the same voice as the rest of that document, so whoever makes the next shape change reads what happens if they forget, rather than inferring it from a comment on an enum.
If it is just not done yet, a regenerated live-schema fixture under a name like dash-live restores the guard, and having to regenerate it deliberately is the moment someone notices the shape moved.
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Issue being fixed or feature implemented
Unreleased iOS builds accumulated historical SwiftData versions before App Store publication. Preserve the accepted frozen V1, consolidate unpublished changes into live V2, and retain the exact schema of each subsequent published build. Also provide a bounded upgrade path for older, unversioned databases whose model graph may differ from the accepted V1.
Previous App Store release: provenance and migration rationale
The exact source commits and database schema of the previous App Store binary are not confirmed. Frozen V1 is an accepted compatibility baseline; it is not proof of that binary's model graph. Its definitions, source references and fixture remain unchanged.
The investigated iOS Actions run 32706880873 checked out iOS
8094751eb2be8d52b57da3589fdd2ae2dcd0ecc6and Platformfd8d8d13e5d7cea17b00df5974934ab1910e8039. That run failed during archive, before upload. These commits therefore supply a reproducible historical test case, not verified App Store provenance. The fixture contains synthetic records created on a simulator; it was not extracted from a production device or IPA.Those older sources opened an unversioned
Schema(modelTypes)without a migration plan. The resulting store reports1.0.0, but its entity hashes differ from frozen V1: the accepted V1 adds 13 fields acrossPersistentDocumentTypeandPersistentIndex, with defaults or optional values. The normal staged V1-to-V2 plan rejects this reconstructed store as an unknown source model. An inferred migration can handle the tested additions, so retaining only the explicit plan would unnecessarily strand that upgrade case.The shared container factory now attempts a controlled legacy-to-V2 migration:
1.0.0, with the required core wallet entities and an allowed entity set, qualify for the bridge.DashSchemaV2graph.The release observer's one-time V1 bootstrap records an operational baseline only. It neither freezes/reconstructs the first binary nor migrates a user's database. Unpublished beta schemas remain outside the supported migration history; this bridge does not restore V2–V5 beta guarantees. The synthetic source reconstruction gives regression coverage for a plausible legacy graph, without establishing compatibility with every unidentified production store.
What was done?
DashModelContainer.create(url:)andcreateAsync(url:)so apps with their own store paths use the same behavior; asynchronous opening and migration run on a dedicated queue, with context access kept on the owning actor.swift-schema-source/<full SHA>; verify existing tag targets and release evidence without overwriting them. Dry runs validate existing tags while leaving missing tags untouched.Companion iOS PR: dashpay/dashwallet-ios#1136. Merge Platform first; configure the scoped PAT, initialize the release-observation baseline and verify a dry run before a new promotable build. Initial production end-to-end verification remains required.
How Has This Been Tested?
--checkmatches all 36 frozen files. Historical-fixture--checkverifies the 34-entity graph, generated-source digests, recorded source files, SQLite metadata/indexes and fixture checksum. Accepted V1 definitions and fixture bytes are unchanged.dashpayclean simulator build now passes after explicitly rejecting the unsupported.contractGroupkey restriction. Fresh app launch and relaunch with explicit testnet selection reached the Welcome screen; this is not a complete existing-wallet migration smoke test.Breaking Changes
Unpublished V2–V5 layouts are removed from supported historical schemas, and their public intermediate schema types are removed. Development/beta users may need an explicit data reset. Accepted V1 continues through the ordinary migration plan; eligible unrecognized legacy
1.0.0stores use the guarded bridge. There is no automatic database wipe.Checklist:
For repository code-owners and collaborators only
Summary by CodeRabbit
New Features
Documentation
Changes