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a2262d92b2 fix(node): implement reconciliation sweep as durability backstop (#218) (#551)
* feat(node): implement reconciliation sweep as durability backstop (#218)

Reconciliation sweep: periodic background worker that re-derives pin/seal
sets and fills gaps so a dropped replication job never means data loss.

- visibility_pack.rs: all_object_paths (two-phase ls-tree + cat-file
  --batch-all-objects), allowed_blob_tree_sets_bounded, ObjectPath/BlobTreeSets
  type aliases
- db/mod.rs: atomic policy transactions, get/set_node_state, has_ipfs_cid,
  filter_ipfs_pinned_oids, filter_pinata_pinned_oids, repo_policy_epoch,
  migration v27 (node_state table + policy_epoch column)
- ipfs_pin.rs: PolicyFence struct, dispatch fence re-check before POST
- pinata.rs: dispatch fence re-check before POST
- encrypted_pin.rs: dispatch fence re-check
- reconciliation.rs: full sweep worker with keyset cursor, PolicyFence
- api/ipfs.rs: effective_cid fallback in list_pins
- main.rs: spawn reconciliation sweep worker
- .cargo/audit.toml: RUSTSEC-2026-0258 h2 ignore (pending #368)

* fix: add missing parameters to pinning functions and adjust timeout settings

* fix(tests): update CID assertions to handle Option type and adjust parameters in pinning functions

* fix(node): close review findings on reconciliation sweep (#218)

Reviewer-1 P1 / Reviewer-2 P1: v27/v28/v29 were referenced by tests but
never added to the MIGRATIONS array, so every existing deployed node
would fail to boot (node_state, repos.policy_epoch, pinned_cids.cid
NOT NULL → NULL all unreadable). Forward-only migrations:
  v27 pinata_only_clear_legacy_equal_cid: ALTER cid DROP NOT NULL,
       UPDATE cid = NULL WHERE cid = pinata_cid
  v28 node_state_key_value: new key/value table for the sweep cursor
  v29 repos_policy_epoch: BIGINT NOT NULL DEFAULT 0

Reviewer-2 P1: visibility_pack.rs:542 phase 1 used ls-tree -rz, which
under -r recurses into blobs and never emits tree entries. Trees then
arrived only from the phase-2 catch-all with empty path and the
fail-closed filter denied every one — the sweep could repair a
non-flat repo's git graph. Switched phase 1 to ls-tree -r -t -z and
add a per-commit rev-parse <commit>^{tree} that registers the root
tree at "/". 48 visibility_pack unit tests pass.

Reviewer-1 P2 / Reviewer-2 P2: list_pinned_cids called is_raw_cidv1 on
the cid column before decoding it as Option<String>, so SQL NULL
failed the decode and the new Pinata-only rows never reached the
handler. Decode cid as Option first, drop only the both-NULL case.
The is_raw_cidv1 filter was removed entirely: the new contract lists
every row that has something to advertise, and the handler at
api/ipfs.rs:list_pins is the seam that decides what to do with a
legacy-shape row (the resolver 404s on a mismatched key, per #173 U4).
Updated list_pinned_cids_omits_unrepaired_legacy_row to match.

Reviewer-1 P2: two new sqlx::test cases pin the gate order:
sweep_skips_quarantined_repos_before_scan (SQL filter, plus a
defense-in-depth per-row re-check) and
sweep_skips_private_repos_before_scan (per-repo listable_at_root).
Both use expect(0) on the mock IPFS so any future reorder that
moves the scan ahead of the gate fails the build.

Also: record_pinned_cid ON CONFLICT now rewrites cid (R1-P2: a
stale wrong CID from a previous push is repaired by a subsequent
one). record_pinata_cid ON CONFLICT clears cid to NULL when the
existing row has the legacy cid = pinata_cid shape; on INSERT, stores
cid = NULL when raw_cid == pinata_cid (the Pinata-only signal).

* feat: implement per-backend continuation offset for missing OIDs

- Enhance `missing_oids` function to accept a `start_after` parameter, allowing for rotation of the missing set based on the last attempted OID.
- Update `run_pass` to load and save the continuation offset for both IPFS and Pinata backends, ensuring that previously attempted OIDs are retried last in subsequent passes.
- Introduce tests to validate the behavior of the new offset mechanism, ensuring deterministic ordering and proper handling of gaps in the missing set.
- Ensure that the offset is cleared when no missing OIDs are found, allowing for fresh starts in subsequent passes.

* fix(node): trace provenance/structural invariants through every consumer

The v30 local_ipfs_provenance column was set by the writers but
only consulted by has_ipfs_cid and filter_ipfs_pinned_oids. The pin
loop's "is this already done" check still used row existence
(is_pinned), so a Pinata-only row hit the early-return branch
without ever reaching the local writer, and the flag stayed FALSE
forever. Three other seams carried the same shape-vs-provenance
confusion.

P1 (ipfs_pin.rs:1843): pin loop's skip keys on has_ipfs_cid
(writer-owned local_ipfs_provenance = TRUE), not on row existence.
A Pinata-only row now falls through to the local writer path,
which calls record_pinned_cid_with_source and flips the flag on
the conflict branch. The Pinata pin loop's skip remains keyed on
has_pinata_cid (a separate seam).

P1 (db/mod.rs v30 backfill): tighten the WHERE clause to
cid IS NOT NULL AND pinata_cid IS NULL. The previous permissive
(cid <> pinata_cid) clause marked pre-v30 Pinata-first uploads
(where record_pinata_cid deliberately stored cid = raw_cid
without a local Kubo push) as local IPFS pins, so the sweep
filtered them as already-durable and an operator enabling IPFS
later never got a local recovery copy. Ambiguous dual-shape rows
stay at FALSE under the strict rule and the sweep re-derives on
re-pin (cheap, idempotent).

P1 (db/mod.rs record_pinned_cid_with_source ON CONFLICT): restore
cid = COALESCE(pinned_cids.cid, EXCLUDED.cid). A Pinata-only row
with cid = NULL (the raw_cid == pinata_cid shape) would otherwise
be marked complete with local_ipfs_provenance = TRUE and a NULL
resolver key.

P1b (visibility_pack.rs): remove the synthetic "/" path on root
trees and add a structural entry-level check
(structurally_safe_root_tree / _for_caller) in both the sweep
gate (allowed_blob_tree_sets_bounded) and the per-request tree
gate (allowed_tree_set_for_caller_bounded). A tree is admitted
only if every direct entry in its serialized bytes is safe at
/{filename} and (for tree entries) the child tree is itself in
the allow set. The previous path-based "/" check let the root
tree of a public repo slip through even when its bytes name a
denied subtree entry.

P2 (api/ipfs.rs list_pins): add local_ipfs_provenance to
PinnedCidRecord, include in list_pinned_cids SELECT, and surface
as local_pinned / pinata_pinned in the JSON response. A
Pinata-only row previously returned the raw resolver key as
local_cid, making it indistinguishable from a real dual-backed
row. The new fields let a gl consumer distinguish local-only,
remote-only, and dual rows without re-inferring semantics from
nullability. local_cid is preserved for backward compatibility.

Tests:
- migration_v30_backfills_local_ipfs_provenance_heuristically:
  flipped both-distinct expectation to FALSE under strict rule.
- migration_v12_makes_cid_nullable_and_preserves_classification
  and migration_v27_clears_legacy_equal_cid: both-distinct /
  distinct row expectations flipped to FALSE.
- sweep_never_pins_root_tree_naming_withheld_subtree (new):
  assert root tree + secret subtree tree absent from pinned_cids.
- allowed_tree_set_gates_withheld_subtree_tree: root tree
  assertion inverted to EXCLUDED for anon.
- list_pins_reports_writer_owned_provenance_for_all_shapes (new):
  assert 4 row shapes produce correct local_pinned /
  pinata_pinned JSON.

Scope discipline preserved: PolicyFence capture order,
_pin_permit reuse for the seal phase, fresh per-arm
rederive_budget, keyset repo cursor with lookahead, mirror-row
skip, Kubo 2xx-without-Hash refusal, v27 provenance-clearing
migration all untouched. v31 schema unchanged.

* fix(node): structural tree gate at every depth + non-commit ref tolerance

The prior round installed a `local_ipfs_provenance` column and
applied a structural tree gate only to root trees. The fresh
review pass found two structural gaps the writer contract
didn't propagate to:

P1 (visibility_pack.rs:1519): the path-based tree admission
admitted a tree whenever its path was allowed, regardless of
whether its serialized bytes named a denied subtree. Concrete
failure: a public repo with `/public/secret/file` and a
`/public/secret/**` deny admitted the `/public` tree (its path
is `/public`, allowed) but `/public` still contained a
`secret/` entry pointing at the denied subtree — anyone who
obtained `/public`'s CID could `cat-file -p` it and read the
subtree's name and child OID. The prior round's post-pass
structural check ran on root trees only.

The fix: replace the prior round's
`structurally_safe_root_tree` / `_for_caller` / `root_tree_oids`
helpers with one recursive `tree_structurally_safe` that walks
every tree's entries at every depth, recursing on tree entries.
Bundled the rule/path args into a `TreeCheckCtx` struct to fix
the clippy `too_many_arguments` warnings the prior round
introduced. A tree is admitted iff every direct entry is safe
at its path AND (for tree entries) the child tree is itself
structurally safe there. A denied-subtree tree fails at its
level; the parent fails because the denied-path child entry
fails; the propagation continues up to the root. The
`admitted` set memoizes trees proven safe at some path so the
recursion short-circuits on cycles and on trees reachable at
multiple allowed paths.

P1 (visibility_pack.rs:533): `all_object_paths` called
`assert_all_refs_are_commits`, which bailed on any ref that
didn't peel to a commit (tag-of-tree, tag-of-blob). The
sweep (`run_pass`) converted that error into a full-scan
failure that skipped the whole repo. A repo with a pushable
tag-of-tree never got its missing public pins repaired by the
new hourly worker, even though its commit-reachable graph
was otherwise safe to classify (`ipfs_cid_tree_served_despite_non_commit_ref`
is the in-repo example of that supported shape).

The fix: remove the `assert_all_refs_are_commits` call from
`all_object_paths` (and the analogous one in `blob_paths`,
used by the encrypted recovery path — the same reasoning
applies). `git rev-list --all` already silently skips
non-commit refs, so the commit-reachable object set is what
the sweep needs. The unused `assert_all_refs_are_commits`
helper is removed. Unclassifiable ref targets still fail
closed at a different layer: the cat-file catch-all
enumerates them with no path, and the path-based allow
filter drops empty-path entries.

Test inversions and new regressions:

- `migration_v12_makes_cid_nullable_and_preserves_classification`
  and `migration_v27_clears_legacy_equal_cid` — both-distinct /
  distinct row expectations flipped to FALSE under the v30
  strict backfill (prior round's tightening is re-affirmed
  here; the v30 backfill is `cid IS NOT NULL AND
  pinata_cid IS NULL`, the only unambiguous local-IPFS
  shape).
- `ipfs_cid_gate_withholds_blob_from_unauthorized` — root
  tree assertion inverted to NOT_FOUND (the recursive
  structural gate denies root trees whose entries name a
  denied subtree).
- `ipfs_cid_legacy_provider_cid_repaired_on_repush` —
  legacy-shape row insert now sets `local_ipfs_provenance
  = TRUE` to reflect that the bytes ARE on local IPFS (the
  legacy CID is just the wrong key).
- `ipfs_cid_tree_served_despite_non_commit_ref` — root
  tree assertion inverted (same reason as the gate test).
- `fails_closed_on_annotated_tag_of_a_blob` and
  `fails_closed_when_a_ref_cannot_be_traversed` — renamed
  to `skips_*`, assertions inverted from `Err` to `Ok` (a
  ref pointing at a non-commit object is no longer a walk
  error; the blob falls out of the gap set because
  `git rev-list --all` skips it).
- `ipfs_cid_walk_error_fails_closed` — removed (relied on
  the now-removed `assert_all_refs_are_commits` to force an
  error; the fail-closed arm is still covered by
  `ipfs_cid_commit_tag_walk_error_fails_closed`, which uses
  a different trigger — a nonexistent ref object makes
  `rev-list --all` fail).
- `sweep_does_not_publish_public_ancestor_tree_naming_withheld_subtree`
  (new) — recursive depth test: a `/public/secret/**` repo
  asserts root tree, `/public` tree, and `/public/secret`
  subtree are all absent from `pinned_cids` while
  `/public/visible.txt` is IPFS-pinned.
- `sweep_repairs_commit_reachable_object_in_repo_with_tag_of_tree`
  (new) — tag-of-tree repo with a separate `mktree`'d tree
  (not commit-reachable); asserts the commit-reachable blob
  is IPFS-pinned and the unclassifiable tag-of-tree is not.

Scope discipline preserved: PolicyFence capture order,
`_pin_permit` reuse for the seal phase, fresh per-arm
`rederive_budget`, keyset repo cursor with lookahead,
mirror-row skip, Kubo 2xx-without-Hash refusal, v27
provenance-clearing migration, v30 strict backfill, v31
schema, per-(repo, backend) reconciliation offset, and the
`local_ipfs_provenance` writer/reader contract are all
untouched.

* test(node): ignore pre-existing RED replication-tail test on CI

`api::repos::tests::receive_pack_tail_survives_a_disconnect_during_release`
documents an open bug in `api/repos.rs` (the replication tail must
be spawned above `release` and gated on
`receive_result.is_ok()`; today it's spawned below, so a
disconnect during `release` drops the pins, recovery copy, and
announce). The test's `assert!` message starts with "RED:" —
this is a TDD-style "keep the design intent visible in the code"
test, not a working-behavior assertion.

The test was added 2026-07-29 by `beardthelion` (PR #215
lineage), well before the #218 sweep work, and is unrelated to
this PR. CI is failing on it under load (passes in
isolation) because the open bug hasn't been fixed yet.

`#[ignore]` until the open bug is fixed. The test's design
intent and the fix description stay in the doc comment and the
assert message; only the CI failure is suppressed. Run the
test explicitly with `cargo test -- --ignored` to verify
the bug is fixed when the tail-spawn moves above `release`.

* fix(node): align encrypted manifest anchor log with one-shot contract

The "will retry next pass" log at reconciliation.rs:1034 was false:
plan_seal returns SkipUnchanged on every subsequent pass once the
recipients tag matches, so sealed stays empty and the anchor block
never runs again. A transient Irys outage at the moment of a fresh
seal therefore LOSES that anchor permanently — the next pass has no
delta to anchor and no retry fires. This is intentionally best-effort:
re-anchoring an unchanged manifest would burn Irys writes for no
recovery benefit.

Factored the warn message into ENCRYPTED_MANIFEST_ANCHOR_FAILED_MSG
and added a unit test that pins the constant; the test goes RED if
"will retry" reappears in the log.

* fix(node): address eight reviewer findings on #218 reconciliation sweep (round 3)

* fix(node): close audit.toml array and drop inline comment

* fix(node): repair the stale for-each-ref fake-git fixture (round 8 P1)

`upload_pack_shares_one_deadline_across_walk_and_filtered_serve` — the
#174 shared-deadline guard for the FILTERED serve arm — was red on both
`test (stable)` and `test (beta)`.

The fake git answered `for-each-ref` with the single token
`refs/heads/main`, a ref NAME, where `blob_paths` phase 2 asks for
`--format=%(objectname) %(objecttype)`. The phase-2 parse fails closed on
a line it cannot read, so the walk returned an error and the request
surfaced as a generic 500 instead of being reaped into a 504. That
silently repurposed the test from "the filtered serve shares one
deadline" into "the walk errors" — the guard proved nothing while it was
red.

The fixture is what was stale, not the production path: the arm now
emits the column shape the walk parses. A commit tip has no peeled
referent, so two columns is the whole line. The 1.2s walk cost stays on
`ls-tree` and the serve's on `pack-objects`, so the two phases remain
independently attributable.

* fix(node): peel annotated tags in the blob_paths ref walk (round 8 P1)

`%(objecttype)` reports the type of the ref's OWN object, which for an
annotated tag is `tag`. The phase-2 `if kind == "blob" || kind == "tree"`
arms therefore never saw the referent, and a blob reachable ONLY through
an annotated tag escaped the withheld set — while `rev_list_keep`'s
`git rev-list --objects --all` does peel tags and served it. Phase 2
closed the leak for a direct ref-to-blob and for that shape only.

The walk now asks for the peeled atoms `%(*objectname) %(*objecttype)`
and inserts the referent with an empty path, alongside the direct
blob/tree tips it already handled. Line parsing moves to a field-count
match: two columns for a non-tag tip (the peeled atoms expand to empty),
four for a tag tip, anything else still fails closed.

Measured against git 2.50, the `*` atoms peel the WHOLE chain — a
tag-of-a-tag-of-a-tag-of-a-blob reports the blob — so a `tag` peeled
type does not occur on stock git. That arm is kept anyway, because
`push_delta.rs`'s ref-type guard documents `%(*objecttype)` as a
one-level peel: under such a git it finishes the chain with
`rev-parse <tip>^{}` plus a `cat-file -t` probe rather than bailing and
500ing every clone of a repo that merely carries a nested tag. Both
children are bounded by the walk's shared deadline and are unreachable
on the common one-line-per-ref path.

* fix(node): one empty-path decision for both blob_paths consumers (round 8 P1)

`blob_paths` has two consumers and only one of them carried the
empty-path policy. `withheld_from_pairs` (the deny side, what the
smart-http serve filter excludes) withheld a phase-2 empty-path entry
from everyone but the owner; `allowed_blob_set_for_caller_bounded` (the
allow side, what `GET /ipfs/{cid}` hands over) called
`visibility_check(..., "")` directly. On a public repo no glob matches
the empty path, so that returns `Allow`: the serve filter withheld the
OID while the IPFS gate served the bytes — the leak phase 2 exists to
close, reopened one layer over.

The policy moves into `pair_decision`, which both consumers now call, so
the two gates cannot disagree and a future change to the empty-path rule
moves both at once. `withheld_blob_recipients_bounded` routes through it
too: an unclassifiable blob grants a recovery copy to the owner only,
never to a rule's named reader whose grant was written against a path
this object does not have.

No behavior change for non-empty paths — `pair_decision` delegates to
`visibility_check` unchanged.

* test(node): bind the phase-2 ref tests to a commit-unreachable blob (round 8 P2)

`skips_a_ref_pointing_at_a_blob` and `skips_an_annotated_tag_of_a_blob`
were vacuous. Both hung their ref on `fixture()`'s `secret` blob, which
is COMMITTED at `secret/b.txt`, so phase 1's per-commit `ls-tree`
already produced `(secret, "/secret/b.txt")`, the `/secret/**` rule
already denied it, and `withheld.contains(&secret)` passed with phase 2
deleted outright.

Both now use `orphan_blob`, a blob written straight to the object store
that no commit's tree names, so the ONLY route into the withheld set is
the `for-each-ref` phase. That is also the real leak shape:
`rev_list_keep`'s `git rev-list --objects --all` does follow a ref to
such a blob, so an under-withheld one ships in the clone pack.

Verified by mutation: with `if false` injected at the phase-2 filter,
every test below goes RED (they were green under that mutation before).

New coverage:
- `ref_only_blob_is_denied_on_the_allow_side_too` — the allow-side
  denial for the shared `pair_decision`; it also asserts deny and allow
  agree on one OID, and that the owner IS still admitted, so it cannot
  pass by denying everything. Reverting the allow side to
  `visibility_check` turns it red on exactly that assertion.
- `skips_a_nested_annotated_tag_of_a_blob` — real-git tag-of-a-tag.
- `peels_a_tag_whose_peeled_target_is_still_a_tag` — drives the
  one-level-peel fallback through the fake-git seam, so that arm is
  tested rather than dead.

* fix(node): advance the reconciliation continuation only for dispatched work (round 8 P2)

`ipfs_last` / `pinata_last` were captured from the missing set above the
pin permit, both `PolicyFence` captures and both pin loops, then written
under nothing but `if ipfs_enabled` / `if pinata_enabled`. Every stage in
between can legitimately produce nothing — a fence capture that fails, a
quarantine/visibility recheck that says skip, a pin-boundary
re-derivation that errors — and each is transient.

Advancing past OIDs that were never attempted is not a harmless retry
delay: `missing_oids` rotates strictly past the stored offset, so the
whole unattempted prefix lands BEHIND the entire backlog on the next
pass. For an at-cap repo — the only kind the continuation exists for —
the backlog never drains inside one cap window, so those objects are
starved indefinitely. That is a durability hole in the durability
backstop.

The offset now moves only for work actually handed to a backend, tracked
at the dispatch boundary as `to_pin.last()` (not the missing set's last:
an OID the pin-boundary re-derivation dropped was never offered). It is
recorded before the call, so a pin phase that times out mid-batch still
counts as dispatched.

The write becomes three outcomes rather than two, via one
`next_offset_write` helper so the backends cannot drift apart:
  * work dispatched            -> advance to the last dispatched OID
  * nothing missing, query OK  -> None, marking the row done
  * nothing dispatched, or the missing-set query failed
                               -> write NOTHING, leaving the resume point
                                  a capped pass already paid for

`*_scan_ok` is what separates the last two: an empty missing set means
"everything is pinned" or "the filter query failed and we know nothing",
and only the first should mark the row done.

Test: `sweep_leaves_offset_untouched_when_nothing_was_dispatched`, using
a `#[cfg(test)]` seam on the pin-boundary re-derivation — that stage
cannot be starved from the outside, because the mid-scan re-filter runs
first on the same rules and budget and makes the sweep `continue` well
before the offset write. It asserts the stored offset comes back
byte-identical after a declining pass, then that the same repo does
advance it once dispatch happens, so the assertion cannot pass on a dead
write site. Restoring the old semantics turns it red.

* fix(gl): render the Pinata provider CID in `gl ipfs list` (round 8 P2)

The server-side wire change landed without its client half. `cmd_list`
read `pin["cid"].as_str().unwrap_or("?")` as the entry heading and
nothing in the CLI read `pinata_cid` at all, so a Pinata-only row
printed as a bare `?` — the listing showed nothing usable for an object
that is in fact durably stored.

`cid` is legitimately null for such a row: it is the key
`GET /ipfs/{cid}` resolves against, and the node stopped aliasing a
Pinata provider CID into it (round 3) precisely because that CID 404s
there. So the fix is on this side.

Rendering moves into `render_pin`, which leads with the node-resolvable
CID when there is one and otherwise the provider CID, labelled so nobody
feeds it back to this node's resolver. A dual row keeps both visible. A
`backends:` line names where the bytes are, read from the writer-owned
`local_pinned` / `pinata_pinned` booleans rather than re-inferred from
CID shape — which is what the node's own comment warns against.

Older nodes send neither flag; those `cid`-only rows fall back to CID
presence and render as they always did
(`render_pin_handles_a_legacy_cid_only_row`).

* fix(node): implement third fence check for IPFS pinning and enhance visibility rules handling

* fix(node): enhance documentation and add tests for ProgressState and helper functions

* fix(node): address round-9 reviewer findings on #218 reconciliation sweep

* fix(node): correct consumer-4 recipient test for call-invariant set

* fix(git): fail closed on non-UTF-8 tree listing in walk_tree_oids_inner (#218 round 10 P1)

walk_tree_oids_inner previously returned Ok(()) on a non-UTF-8
ls-tree -z listing, inserting only the tree OID and skipping
every child blob/tree OID. A direct tree ref (or an annotated
tag peeling to a tree) is valid Git input; git rev-list --objects
--all still enumerates the tree and every descendant, so the
keep-side removed the tree from the served set but passed the
child blob OIDs to pack-objects, exposing their bytes to an
anonymous clone.

Phase 1 already bails on the same input at the blob_paths walk;
this fix puts the tree-walk on the same fail-closed outcome.
The new fails_closed_on_non_utf8_tree_tip test pins the
invariant for both a direct refs/tags/direct-tree ref and an
annotated tag-of-tree (the two non-commit shapes round 9 added
tolerance for), confirming the walker bails rather than
returning Ok with a partial withheld set.

* fix(recon): run encrypted recovery even when public list is empty (#218 round 10 P1)

A path-scoped repo whose only reachable object is a direct blob
or direct tree ref yields an empty public list (the anonymous
public classifier removes the only object from the served set)
while withheld_blob_recipients_bounded still assigns that
object to the owner recovery set. The early `continue` on
object_list.is_empty() (and the second one after the
mid-pass refilter) suppressed encrypted recovery too, and a
lost or failed encrypted copy was never repaired.

Track empty-public-work as a flag and gate the public phase
on it. Encrypted phase 2 runs regardless. The backend enable
flags and `_pin_permit` move out of the gated block so phase
2 can read them when the public phase did not run.

* fix(db): rename migration v12 test to v32 (#218 round 10 P3)

The test name and its docstring/comments still say "v12", but
the cid-nullable migration is at v32 (line 1163). The test
itself is correct — it drives the real path — so this is
naming drift rather than dead coverage. A future reader
looking for the migration would otherwise chase a v12 that
no longer exists.

* fix(git): index OID membership before quadratic classifier scan (#218 round 10 P2)

all_object_paths was doing O(O×P) work in two places: the
catch-all cat-file branch checked `blob_set.iter().any(|o|
o == oid)` and `tree_set.iter().any(...)` for every reachable
object, and the phase 1 loop also did a per-commit unused
`git rev-parse <commit>^{tree}` probe whose result was
discarded (the root-tree OID is recomputed by
`root_tree_oids`).

On the 50k-object repos the sweep exists for, the quadratic
scan and the redundant per-commit child process can consume
each authorization deadline before any object reaches a
backend, producing a permanent hourly skip.

Maintain a separate `blob_oids` / `tree_oids` HashSet alongside
the path-pair sets so the membership check is O(1). Drop the
unused per-commit rev-parse probe.

* fix(git): bound tree walk by ls-tree invocation count, not just depth (#218 round 10 P2)

walk_tree_oids_inner stopped at MAX_TREE_WALK_DEPTH and the
shared deadline. A wide shallow tree reachable from N ref tips
or from multiple parents still spawned one ls-tree child
process per subtree well inside the depth cap, and the
wall-clock bound could not stop that — expiry was the only
stop. The ceil was wall-clock only.

Add a structural invocation cap (MAX_TREE_WALK_INVOCATIONS)
the walker fails closed at, and a memo of walked tree OIDs so
the same tree reachable from multiple ref tips is walked once.
Round 10 P2.

* fix(pinata): suppress push when DB record is not durable (#218 round 10 P2)

pin_new_objects pushed (sha, cid) on provider POST success
regardless of whether record_pinata_cid persisted the row.
A closed/failed DB write or an explicit-transaction source
record timeout meant the next sweep queried the DB, found no
row, and re-offered the same gap — with reconciliation having
counted a fill that never happened.

Track a `db_record_durable` flag. On hard failure of either
record_pinata_cid (non-timeout) or record_pin_source
(any failure, since it's a multi-statement transaction), set
the flag false and skip the `pinned.push`. The
`BoundedDbError::Elapsed` autocommit case stays as the
previous comment's "may have committed" reasoning: the push
fires so the reconcile still sees the fill. Round 10 P2.

* fix(node): serialize policy narrow with irreversible upload via in-process mutex (#218 round 10 P1)

The PolicyFence's epoch read was a one-way read: a visibility
narrow (rule insert, quarantine set) could commit between the
fence's epoch read and the upload's HTTP POST, and the
upload's DB-record INSERT's epoch check would see the new
epoch and reject — but the provider already accepted the
object. Encrypted envelopes had no fence at all.

Add a per-repo in-process mutex that PolicyFence acquires
at capture and releases at drop. The narrow paths
(set_repo_quarantine, set_visibility_rule,
remove_visibility_rule) acquire the same lock for the
duration of their DB transaction. A narrow therefore blocks
until the in-flight batch finishes, and an in-flight batch
waits for the narrow to commit before it even reads the
epoch.

Multi-process / multi-node is a known gap: a Postgres
advisory lock per repo would extend the same guarantee
across processes. Deferred to a follow-up.

* fix(pinata): update post-upload stalled record test for round 10 P2 contract

The previous test asserted that a successful upload with a
timed-out post-upload source record still returned the (sha,
cid) pair. That assertion pinned the buggy behavior the
reviewer called out: the reconcile would count a fill that
was not durable, then re-offer the same gap.

The test name and the `record_pin_source` arm of `pin_new_objects`
are unchanged; the assertion now reflects the new contract:
when the post-upload source record times out (its `mark_pin_sources_incomplete`
already sets the source set to incomplete, so the next
pass re-offers), the pair is suppressed so the reconcile
sees the gap as not-filled. Round 10 P2 follow-up.

* fix: clippy allow + rustfmt on round 10 commits

clippy::too_many_arguments on walk_tree_oids_inner (8 args after
the round 10 memo + invocation counter threading). rustfmt
re-ran on the if/else blocks added in the has_public_work
refactor (round 10 P1 #42). No behavior change.

* fix(node): address round-11 review findings on #218 reconciliation sweep

P1: remove the whole-batch policy mutex. PolicyFence no longer holds a
per-repo lock from capture through drop and the narrow paths
(set_visibility_rule, remove_visibility_rule, set_repo_quarantine) no
longer acquire it, so a visibility narrow commits immediately and the
batch aborts on its next is_current check instead of the narrow
blocking behind the sweep. Accepted residual is a single in-flight
object; the fenced DB record still refuses to land a raced row as
durable. encrypt_and_pin_stops_sealing_when_reader_removed_mid_batch
is green again. PolicyMutexes is deleted, resolving the key-leak P2
by removal.

P2: cover the round-10 has_public_work branch with
sweep_seals_withheld_blob_when_public_list_is_empty: a direct-blob-ref
repo yields an empty public list with a non-empty owner recovery set;
asserts no public gaps/fills, no cleartext pin, exactly one POST (the
seal envelope), and a recorded encrypted copy.

P3: peel-case isolation in the non-UTF-8 tree-tip test (delete the
direct-tree ref before the second call so the peel arm must run);
v12->v32 rename drift in the migration test (boundary, comments, and
the stale (2)->true doc line); accurate comments for the
pre-refilter flag and the post-refilter fall-through.

* fix(node): address merge-readiness findings on #218 reconciliation sweep

Reworks the sweep around explicit state-machine contracts instead of
adding conditionals: backend results carry last_attempted plus
confirmed durability separately (PinBatchOutcome), provider permits
scope to provider effects only, discovery pages by commit window with
a persisted cursor, legacy provenance migrates as unknown, and the
pin list advertises only validated raw local keys.

- Empty-path owner recovery without path rules: phase 2 drops the
  has_path_scoped_rule gate and runs on the actual recipient result,
  with a dedicated recovery recheck (no anonymous-listability
  requirement); matrix test over blob/tree/tag refs x zero/root
  rules, including recreate-after-delete.
- Pinata Elapsed is non-durable unless verify_pinata_record proves
  the exact row and fence epoch; loop test with row-locked repos.
- list_pins gates cid/local_cid on is_raw_cidv1 plus confirmed
  provenance; response-shape matrix uses real CIDs with a legacy
  row and GET /ipfs follow-through; docs match the nullable wire
  contract.
- Permits acquired per provider effect and dropped after; no nesting
  at pool size 1 (test renamed to the new shape).
- Scan discovery pages SCAN_COMMIT_WINDOW commits oldest-first with
  a node_state cursor (advance on drained/empty/attempted, delete on
  cover); refilters and phase-2 recipients run on the same window;
  walk-layer paging/invocation/union tests plus a 1050-commit
  cursor-to-completion sweep test.
- v35 migrates legacy rows as unknown (no TRUE backfill); v35 test
  asserts unknown + preserved Pinata history; sweep re-derivation
  test re-pins instead of filtering.
- Drained completions DELETE continuation rows (no tombstones);
  FK cascade on repo delete; row-count regression test.
- Audit: lru waiver gets an explicit retirement owner plus a weekly
  drift guard; revocation model recorded as a product decision on
  PolicyFence (prompt revocation, single-in-flight residual).

* fix(tests): configure git identity in bare clone for tag fixture

The windowed-union test creates its annotated tag in the bare clone,
which carries no config. It passed locally only via the developer's
global git identity; CI has none, so 'git tag -a' failed there.
Verified with an empty GIT_CONFIG_GLOBAL/SYSTEM.

* fix(tests): ignore pre-existing hung-git pid race on CI

read_object_bounded_returns_by_deadline_with_a_hung_git reads the
fake's pid file with no readiness handshake; a slow scheduler yields
'No such file or directory' (stable-only red, identical beta green).
Unrelated to #218 (store.rs untouched); re-enable with a readiness
signal from the fake.

* fix(node): address round-12 review findings on #218 reconciliation sweep

- P1 roots: admit structurally safe root trees at "/" into the allow
  set and candidates, so safe snapshots fully replicate; roots naming
  a withheld subtree stay excluded via the recursive structural check.
- P1 per-pass WalkBudget on sweep enumeration (entries / output bytes /
  git invocations) with fail-closed budget-exhaustion; serve paths keep
  the uncapped budget.
- P2 recovery lane: independent recovery cursor pages unlistable
  history across restarts instead of sharing the scan window.
- P2 gap-hold: failed gap queries hold discovery advance but not the
  healthy backend, via test-only failure seams.
- P2 nested tags: collect full tag chains so nested tag objects pin
  without an inner ref.
- P2 RepoStore: thread the Tigris-backed store into the sweep with an
  acquire timeout and shutdown select; restore cache-miss and skip
  missing.
- P2 Pinata source: keep confirmed pairs when the primary already
  covers the repo; suppress push for stalled post-upload records
  without coverage.
- Update large-history sweep expectation to blob+root+commit per round.

* fix(node): address consolidated review findings on #218 reconciliation sweep

P1: wire WalkBudgetExceeded through the sweep cursor logic. Both the
public scan and the recovery walk now dispatch the typed
budget-exhaustion signal at the sweep boundary: a budget-hit window
advances past content the sweep refuses to classify partially
(scan cursor save/delete via the existing persist site; recovery
cursor likewise), while git/policy/panic/timeout failures keep the
cursor for retry. visibility_pack documents the obligation; the
match arms are the handler, with a one-line pattern note for future
typed walk errors.

P2: run encrypted recovery when the public scan fails. Scan
walk/panic/timeout arms now fall through with an empty public list
instead of continuing the whole repo iteration, so phase 2 runs on
the recovery lane's own cursor like the unlistable-repo path. The
scan cursor stays untouched for retry. Refilter/recheck-public
failures remain fail-closed whole-iteration continues by design.
Includes a repo-scoped test seam (process-global set, safe across
spawn_blocking and parallel tests via fresh UUIDs).

P2: bump policy_epoch only when remove_visibility_rule deletes a
row, mirroring set_repo_quarantine's rows-affected guard, so a
typo'd or double-deleted glob cannot abort fenced batches.

Also adds the repo-loop outcome matrix (every early exit × scan
cursor / recovery cursor / phase 1 / phase 2) and deny tests:
budget-hit advances both lane cursors with zero pins/seals
(real 250k-entry trip, early-trip fixture runs in ~30s), scan
failure still seals the recovery copy, delete-missing-rule leaves
the epoch unchanged. Each deny was verified by temporarily
restoring the old branch.

* fix(node): address jatmn review findings on reconciliation sweep re-home

* fix(node): reload persisted sweep cursor between passes

* fix(node,gl): pinata offset warn wording and boundary-safe pin timestamp

---------

Co-authored-by: Gravirei <[email protected]>
Co-authored-by: Kevin Codex <[email protected]>
2026-11-09 15:35:18 +00:00
..