fix(git-sync): address review — configurable poll, always-on loop-guard, cleanup

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>

apps/server/src/integrations/git-sync/git-sync.constants.ts

@@ -13,14 +13,16 @@ import { EventName } from '../../common/events/event.contants';
  * The page lifecycle events the git-sync listener reacts to (plan §10). A change
  * to any of these in an enabled space schedules a debounced sync cycle.
  *   - PAGE_CREATED / PAGE_UPDATED / PAGE_MOVED — structural + content edits;
- *   - PAGE_CONTENT_UPDATED — the collab body-save job (real name in the enum);
  *   - PAGE_SOFT_DELETED / PAGE_RESTORED — Trash transitions (deletes are soft);
  *   - PAGE_MOVED_TO_SPACE — cross-space move (cross-repo, plan §5).
+ *
+ * NOTE: body edits arrive via PAGE_UPDATED (emitted from persistence.extension),
+ * NOT via EventName.PAGE_CONTENT_UPDATED — that name is a BullMQ queue-job name,
+ * not an EventEmitter2 event, so @OnEvent would never fire for it.
  */
 export const GIT_SYNC_PAGE_EVENTS = [
   EventName.PAGE_CREATED,
   EventName.PAGE_UPDATED,
-  EventName.PAGE_CONTENT_UPDATED,
   EventName.PAGE_MOVED,
   EventName.PAGE_MOVED_TO_SPACE,
   EventName.PAGE_SOFT_DELETED,

apps/server/src/integrations/git-sync/git-sync.module.ts

@@ -21,9 +21,10 @@ import { GitSyncController } from './git-sync.controller';
  *   - EnvironmentModule (global) — EnvironmentService config;
  *   - CollaborationModule — exports CollaborationGateway for native body writes;
  *   - PageModule — exports PageService for structural mutations;
- *   - ScheduleModule (NOT forRoot) — so @Interval is discovered. forRoot() is
- *     already registered globally by TelemetryModule; importing the plain module
- *     here avoids a duplicate scheduler registration (plan §6 note).
+ *   - ScheduleModule (NOT forRoot) — so SchedulerRegistry is injectable (the
+ *     orchestrator registers a DYNAMIC poll interval in onModuleInit). forRoot()
+ *     is already registered globally by TelemetryModule; importing the plain
+ *     module here avoids a duplicate scheduler registration (plan §6 note).
  *
  * RedisService is provided by the global RedisModule (app.module) and CASL's
  * WorkspaceAbilityFactory by the global CaslModule — both resolve without an

apps/server/src/integrations/git-sync/listeners/page-change.listener.ts

@@ -35,7 +35,9 @@ interface DebounceEntry {
  *
  * Loop-guard (best-effort, plan §10/§8.2): an event whose page row already reads
  * `lastUpdatedSource === 'git-sync'` is the orchestrator's OWN write, so we skip
- * it to avoid a write -> event -> sync echo. This is the cheap first guard; the
+ * it to avoid a write -> event -> sync echo. The guard ALWAYS runs (the page row
+ * is fetched for every event, structural ones included). This is the cheap first
+ * guard; the
  * full bodyHash + updatedAt loop-guard (consuming the push side's
  * `PushedPageRecord`) is a later hardening step (plan §8.2) — noted, not built
  * here. The poll-safety interval still converges anything this guard drops.
@@ -53,8 +55,8 @@ export class PageChangeListener {
 
   /**
    * One handler bound to ALL git-sync page events (the array form of `@OnEvent`).
-   * Resolves the affected page's space + workspace, applies the cheap loop-guard,
-   * and schedules the debounced cycle.
+   * Fetches the page row once to apply the loop-guard (unconditionally) and to
+   * resolve the page's space + workspace, then schedules the debounced cycle.
    */
   @OnEvent(GIT_SYNC_PAGE_EVENTS as unknown as string[])
   async handlePageEvent(event: PageEventLike): Promise<void> {
@@ -64,21 +66,24 @@ export class PageChangeListener {
       const pageId = this.firstPageId(event);
       if (!pageId) return;
 
-      // Prefer a spaceId carried on the event; otherwise read the page row (also
-      // gives us the loop-guard source). A missing page (hard-deleted) is ignored.
-      let spaceId = this.eventSpaceId(event, pageId);
-      let workspaceId = event.workspaceId;
+      // The loop-guard MUST always run — even structural events that already
+      // carry spaceId+workspaceId could be the orchestrator's OWN write (it stamps
+      // lastUpdatedSource='git-sync' on create/update/move/rename + body writes).
+      // So ALWAYS fetch the page row: it gives us the loop-guard source AND fills
+      // in any missing space/workspace in a single read. A missing page
+      // (hard-deleted) is ignored.
+      const page = await this.pageRepo.findById(pageId, {
+        includeContent: false,
+      });
+      if (!page) return;
 
-      if (!spaceId || !workspaceId) {
-        const page = await this.pageRepo.findById(pageId, {
-          includeContent: false,
-        });
-        if (!page) return;
-        spaceId = spaceId ?? page.spaceId;
-        workspaceId = workspaceId ?? page.workspaceId;
-        // Loop-guard: skip our own writes (best-effort, plan §8.2).
-        if (page.lastUpdatedSource === 'git-sync') return;
-      }
+      // Loop-guard: skip our own writes to avoid a write -> event -> sync echo
+      // (best-effort, plan §8.2). Applies unconditionally now.
+      if (page.lastUpdatedSource === 'git-sync') return;
+
+      // Prefer ids carried on the event; fall back to the row we already fetched.
+      const spaceId = this.eventSpaceId(event, pageId) ?? page.spaceId;
+      const workspaceId = event.workspaceId ?? page.workspaceId;
 
       if (!spaceId || !workspaceId) return;
       this.schedule(spaceId, workspaceId);

apps/server/src/integrations/git-sync/services/git-sync.orchestrator.ts

@@ -1,5 +1,10 @@
-import { Injectable, Logger } from '@nestjs/common';
-import { Interval } from '@nestjs/schedule';
+import {
+  Injectable,
+  Logger,
+  OnModuleDestroy,
+  OnModuleInit,
+} from '@nestjs/common';
+import { SchedulerRegistry } from '@nestjs/schedule';
 import { RedisService } from '@nestjs-labs/nestjs-ioredis';
 import type { Redis } from 'ioredis';
 import { randomUUID } from 'node:crypto';
@@ -60,18 +65,21 @@ export interface GitSyncRunStatus {
  * first; per-space opt-in is now REQUIRED on top of it.
  */
 @Injectable()
-export class GitSyncOrchestrator {
+export class GitSyncOrchestrator implements OnModuleInit, OnModuleDestroy {
   private readonly logger = new Logger(GitSyncOrchestrator.name);
   private readonly redis: Redis;
   /** Unique per process instance — the leader-lock value (CAS on release). */
   private readonly instanceId = randomUUID();
   /** In-process per-space mutex: spaceIds with a cycle currently running. */
   private readonly running = new Set<string>();
+  /** The registered poll-interval name, or null when none is registered. */
+  private pollIntervalName: string | null = null;
 
   constructor(
     private readonly environmentService: EnvironmentService,
     private readonly dataSource: GitmostDataSourceService,
     private readonly vaultRegistry: VaultRegistryService,
+    private readonly schedulerRegistry: SchedulerRegistry,
     redisService: RedisService,
     @InjectKysely() private readonly db: KyselyDB,
   ) {
@@ -346,18 +354,60 @@ export class GitSyncOrchestrator {
 
   // --- poll-safety interval (plan §10) -------------------------------------
 
+  /** Registered interval name (shared by registration + teardown). */
+  private static readonly POLL_INTERVAL_NAME = 'git-sync-poll';
+
   /**
-   * Poll-safety loop: catches events missed by the listener and reconciles after
-   * downtime. Gated on GIT_SYNC_ENABLED. The interval is a fixed value because
-   * `@Interval` cannot read config at class-eval time — the body short-circuits
-   * when disabled. Each enabled space runs under its own lock (overlaps skipped).
+   * Register the poll-safety interval DYNAMICALLY so it honors the configured
+   * GIT_SYNC_POLL_INTERVAL_MS (a static `@Interval` decorator could only hardcode
+   * a value at class-eval time, before config is readable — diverging from what
+   * `/status` reports). When git-sync is disabled we register nothing.
    *
-   * ScheduleModule: registered ONCE globally by TelemetryModule
-   * (ScheduleModule.forRoot()); GitSyncModule imports the plain ScheduleModule so
-   * @Interval is discovered without a duplicate forRoot (plan §6 note).
+   * ScheduleModule: forRoot() is registered ONCE globally by TelemetryModule;
+   * GitSyncModule imports the plain ScheduleModule so SchedulerRegistry is
+   * injectable without a duplicate forRoot (plan §6 note).
    */
-  @Interval('git-sync-poll', 15000)
-  async poll(): Promise<void> {
+  onModuleInit(): void {
+    if (!this.environmentService.isGitSyncEnabled()) return;
+
+    const ms = this.environmentService.getGitSyncPollIntervalMs();
+    const handle = setInterval(() => {
+      void this.pollTick();
+    }, ms);
+    // Do not keep the event loop alive solely for the poll timer.
+    handle.unref?.();
+    this.schedulerRegistry.addInterval(
+      GitSyncOrchestrator.POLL_INTERVAL_NAME,
+      handle,
+    );
+    this.pollIntervalName = GitSyncOrchestrator.POLL_INTERVAL_NAME;
+    this.logger.log(`git-sync: poll interval registered (${ms}ms).`);
+  }
+
+  /** Tear down the dynamic interval on shutdown (guard against double-delete). */
+  onModuleDestroy(): void {
+    if (!this.pollIntervalName) return;
+    try {
+      // deleteInterval clears the timer and removes it from the registry.
+      this.schedulerRegistry.deleteInterval(this.pollIntervalName);
+    } catch (err) {
+      this.logger.warn(
+        `git-sync: failed to delete poll interval: ${
+          err instanceof Error ? err.message : String(err)
+        }`,
+      );
+    } finally {
+      this.pollIntervalName = null;
+    }
+  }
+
+  /**
+   * One poll tick: catches events missed by the listener and reconciles after
+   * downtime. Gated on GIT_SYNC_ENABLED (defensive — the interval is only
+   * registered when enabled). Each enabled space runs under its own lock
+   * (overlaps skipped). Never throws (runOnce swallows per-space errors).
+   */
+  private async pollTick(): Promise<void> {
     if (!this.environmentService.isGitSyncEnabled()) return;
     let spaces: EnabledSpace[];
     try {

apps/server/src/integrations/git-sync/services/gitmost-datasource.service.ts

@@ -30,14 +30,12 @@ export interface GitSyncBindContext {
 }
 
 /**
- * The git-sync provenance carried into PageService writes. PageService stamps
- * `lastUpdatedSource = 'agent'` only when `provenance.actor === 'agent'`; for any
- * other actor it leaves the column at its default ('user'). So create/move/rename
- * through PageService DO NOT yet stamp 'git-sync' on the page row — see the note
- * in the report. Body writes (writeBody, §3.3) DO stamp 'git-sync' because the
- * collab context's `actor: 'git-sync'` flows into PersistenceExtension. We pass a
- * 'git-sync' provenance anyway so that when PageService is extended to honor it,
- * the marker propagates without touching the datasource.
+ * The git-sync provenance carried into PageService writes. PageService.create/
+ * update/movePage honor this provenance and stamp `lastUpdatedSource = 'git-sync'`
+ * on the page row when `provenance.actor === 'git-sync'`. Body writes (writeBody,
+ * §3.3) likewise stamp 'git-sync' because the collab context's `actor: 'git-sync'`
+ * flows into PersistenceExtension. So ALL git-sync structural + body writes mark
+ * the row's source, which the listener's loop-guard reads to skip our own writes.
  */
 const GIT_SYNC_PROVENANCE: AuthProvenanceData = {
   actor: 'git-sync',