Supersedes the active-session "defer" guard with a real merge (review #5 —
"запись делать через мерж", not skip-while-editing).
writeBody no longer does delete-all + re-insert (which discarded a concurrent
editor's in-flight changes on every sync). It now diffs the live body against the
incoming git body at TOP-LEVEL BLOCK granularity (LCS over a canonical structural
serialization) and applies only the minimal inserts/deletes:
- a block a human is editing is left UNTOUCHED when git changed a DIFFERENT block;
- an unchanged resync is a complete 0-op write;
- Yjs CRDT-merges the minimal ops with concurrent edits.
New yjs-body-merge.ts (mergeXmlFragments + cloneXmlNode + diffBlocks) is pure-Yjs
and unit-tested with real Y.Docs (8 tests): identical->0 ops, edit-one-block keeps
the other block instances, append/delete keep neighbours, marks survive the
cross-doc clone. Crash-safety kept: the incoming doc is built before the
connection opens, so a transform failure can't empty the body.
Removed: the ActiveEditSessionError defer path and the now-unused
CollaborationGateway.getActiveEditorCount.
Honest limitation: this is a 2-way merge — for a block BOTH sides changed since the
last sync, git wins (no common ancestor to decide). A full 3-way merge would need
the last-synced base plumbed from the engine; the dominant cases (unchanged
resync, edits to different blocks) are now lossless.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Review finding #5: the git -> page body write (writeBody) did a full-body replace
(delete-all + re-insert) on the shared Yjs doc. Applied while a human is editing
the page, it discarded their in-flight changes; and TiptapTransformer.toYdoc ran
AFTER the fragment was cleared, so a conversion failure could leave the page with
an empty body.
Fixes:
- Active-session guard: CollaborationGateway.getActiveEditorCount(documentName)
reports live human (websocket) editor sessions for a doc, excluding server-side
direct connections. writeBody now throws ActiveEditSessionError when an editor
is connected. The engine's push loop already isolates each importPageMarkdown in
try/catch and does not advance the loop-guard on failure, so the write is simply
retried on the next poll once the editor disconnects — never a clobber.
- Crash-safe conversion: build the replacement Yjs update BEFORE opening the
connection / clearing the fragment, so a transform failure can never leave the
body empty.
Also updates the server-side converter gate spec to the corrected round-trip
shape: the block-image hoist no longer leaves a leading empty paragraph (the
git-sync converter fix in 7d39c16b, now reaching the built package).
A true merge of git content into a live Yjs session is out of scope (it needs a
real 3-way text merge with no shared update lineage); deferring the write while a
page is being edited is the safe, owner-approved minimum.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Expose each git-sync-enabled space as a clonable/pushable git repo over HTTP,
so `git clone https://<user>:<pass>@<host>/git/<spaceId>.git` works and external
pushes flow back into Docmost pages — gitmost itself acts as the git host (no
external GitHub/Gitea, no SSH).
Transport: shell out to `git http-backend` (CGI; git is already in the runtime
image) which implements the full smart-HTTP protocol (info/refs, upload-pack,
receive-pack, protocol v2). A raw Fastify route `/git/*` (mounted at the root,
outside the `/api` prefix) bridges the request/response to the CGI; passthrough
content-type parsers for the git media types stream the raw body to stdin.
Reuse the existing engine: clients push the vault's `main` branch, whose commits
beyond `refs/docmost/last-pushed` the engine already reconciles into Docmost.
- http/git-http.service.ts — auth (HTTP Basic -> AuthService.verifyUserCredentials),
self-resolved workspace (DomainMiddleware does not run for this raw route),
per-space gating (global + per-space gitSync flags, 404 hides existence),
CASL authz (Read=fetch, Manage=push), dispatch.
- http/git-http-backend.service.ts — spawn `git http-backend`, binary-safe CGI
response parsing (Status/headers/body), stream to the socket.
- http/git-http.helpers.ts — pure path parse, service->kind mapping, gate decision
(unit-tested); rejects literal and percent-encoded path traversal.
- orchestrator: extract reusable withSpaceLock (CAS-guarded lock heartbeat so a
long push cannot let the lock expire mid-cycle) and add ingestExternalPush
(receive-pack + Docmost cycle under one lock; 503 on contention).
- vault-registry: ensureServable() — ensureRepo + idempotent receive.denyCurrentBranch
=updateInstead / denyNonFastForwards / http.receivepack / http.uploadpack.
- env: GIT_SYNC_HTTP_ENABLED (defaults to GIT_SYNC_ENABLED) + validation.
- main.ts: register the /git/* route and the git content-type parsers.
Tests: pure helpers, CGI parsing, and the GitHttpService handler (auth/gate/authz
+ workspace resolution). Server tsc + git-sync/env suites green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Comprehensive-review follow-ups (APPROVE WITH SUGGESTIONS; no critical issues):
- poll interval is now actually configurable: replaced the hardcoded
@Interval('git-sync-poll', 15000) with a dynamic SchedulerRegistry interval
registered in onModuleInit from getGitSyncPollIntervalMs() (cleared in
onModuleDestroy); /status and the real cadence now share one config source.
Boots logging 'poll interval registered (Nms)'.
- loop-guard now ALWAYS applies: the lastUpdatedSource==='git-sync' skip was
nested inside the !spaceId/!workspaceId branch, so structural self-writes
(CREATE/MOVE/RESTORE/SOFT_DELETE, which carry spaceId+workspaceId) bypassed it
and re-triggered cycles. Fetch the page row once, guard unconditionally, then
resolve space/workspace.
- remove the dead PAGE_CONTENT_UPDATED subscription (it's a BullMQ job, never an
EventEmitter event; body edits arrive via PAGE_UPDATED).
- fix the stale datasource comment (PageService DOES stamp 'git-sync' now).
- env getters: parseInt radix 10 + NaN/<=0 fallback for poll/debounce (+ max
deletes), with 6 new environment.service.spec tests.
tsc clean; jest 723 pass; live cycle re-verified post-refactor (ran, push
applied, unflagged 92-page space untouched).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Fixes found by the live pull/push e2e:
- CRITICAL: driveCycle never checked out the 'docmost' branch before
applyPullActions, so Docmost content was written straight onto 'main',
clobbering local file edits before push could diff them. Now checkout
'docmost' before pull (applyPullActions commits there then checks out main +
merges) — mirrors the engine's pull main(). Round-trip now works both ways.
- add an unresolved-merge guard (SPEC §9): skip the cycle if the vault is
mid-merge instead of failing on checkout.
- SAFETY: enabledSpaces() is now STRICT opt-in — only spaces with
settings.gitSync.enabled===true; removed the all-spaces fallback that synced
every space (incl. a 92-page one) the moment GIT_SYNC_ENABLED flipped.
- SAFETY: per-cycle delete cap (GIT_SYNC_MAX_DELETES_PER_CYCLE, default 5):
dry-run the push, and if planned deletes exceed the cap, run the apply with
deletePage neutralized — phantom absence-deletions from a non-convergent vault
can't soft-delete real pages. Fails safe if the dry-run throws.
- fix manual trigger: TriggerGitSyncDto.spaceId needs @IsUUID or the global
whitelist ValidationPipe strips it (arrived undefined -> vault 'undefined').
Live-verified on an isolated flagged space: push (vault file edit -> Docmost
content, stamped lastUpdatedSource='git-sync') and pull (Docmost rename -> vault
file + meta) both work; an unrelated 92-page space stayed untouched throughout.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Native data plane for git-sync (plan §3, §8.1):
- provenance: widen actor to 'user'|'agent'|'git-sync' (jwt-payload,
auth-provenance decorator); PersistenceExtension resolves lastUpdatedSource
with precedence agent > git-sync > user, debounced history (like a human edit,
not the agent's immediate snapshot).
- GitmostDataSourceService implements @docmost/git-sync's GitSyncClient natively:
reads via PageRepo/SpaceRepo (listSpaceTree complete:true, getPageJson), writes
via PageService (create/removePage soft-delete/movePage with computed fractional
position/update-rename/restore) + the writeBody linchpin through collab
openDirectConnection('page.'+id, {actor:'git-sync'}) mirroring
collaboration.handler withYdocConnection 'replace'. bind({workspaceId,userId})
returns the context-bound client for the orchestrator.
- 10 unit/contract tests (mapping + soft-delete + move-position), tsc clean.
Known gap (closed in A.4b): PageService.create/update/movePage only branch on
actor==='agent'; git-sync provenance is already passed through so the row source
marker propagates once PageService honors 'git-sync'. Module/orchestrator/config
come next.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
