gstack/lib
Garry Tan 0fb7fa6c1e
fix(gbrain-sync): centralize gbrain spawn surface + seed DATABASE_URL
Cherry-picked from #1508 by jasshultz, restructured per codex review #4
and #7 to widen scope and centralize the spawn surface.

The bug: gbrain auto-loads .env.local from cwd via dotenv. When
/sync-gbrain runs inside a Next.js / Prisma / Rails project whose
.env.local defines its own DATABASE_URL (pointing at the app's local
DB), gbrain reads that value instead of its own
~/.gbrain/config.json — auth fails, code + memory stages crash.

This commit:

- Adds lib/gbrain-exec.ts: buildGbrainEnv, spawnGbrain, execGbrainJson,
  execGbrainText, spawnGbrainAsync (the last one for memory-ingest's
  streaming gbrain import call). buildGbrainEnv seeds DATABASE_URL from
  ${GBRAIN_HOME:-$HOME/.gbrain}/config.json, returns a fresh env object
  (never the caller's by identity — codex review #11), and honors the
  GSTACK_RESPECT_ENV_DATABASE_URL=1 escape hatch.

- Routes every gbrain spawn in bin/gstack-gbrain-sync.ts and
  bin/gstack-memory-ingest.ts through the helpers. Both files now own
  zero direct spawnSync("gbrain"|spawn("gbrain"|execFileSync("gbrain"
  call sites.

- Threads buildGbrainEnv into the spawnSync("bun", [memory-ingest], ...)
  grandchild in runMemoryIngest (codex review #7). Without this, the
  parent fix is half-baked — the bun child inherits a clean env but
  needs DATABASE_URL pre-seeded too. spawnGbrainAsync inside
  memory-ingest provides defense in depth for standalone invocations.

- Adds GBRAIN_HOME support — aligns with detectEngineTier (already
  honors GBRAIN_HOME) so all gstack-side gbrain calls agree on which
  config file matters. Resolves baseEnv.HOME first, then homedir(), so
  test injection works without process-wide HOME mutation.

- Adds test/build-gbrain-env.test.ts: 10 unit tests covering all five
  env-seeding branches (seed from config / override caller /
  GSTACK_RESPECT escape hatch / missing config / unparseable config /
  no database_url field / GBRAIN_HOME path / object-identity guard /
  unrelated-vars preservation / idempotent-when-matches).

- Adds test/gbrain-exec-invariant.test.ts: static-source check that
  greps both bin/gstack-gbrain-sync.ts and bin/gstack-memory-ingest.ts
  for direct spawnSync("gbrain"|spawn("gbrain"|execFileSync("gbrain"|
  execSync(...gbrain matches and fails the build if any are found.
  Refactor-proof against future contributors adding a new gbrain spawn
  without env threading.

The invariant is intentionally narrow — only the two files where the
DATABASE_URL bug actually hurts users are guarded. Migrating the
spawn sites in lib/gbrain-local-status.ts, lib/gstack-memory-helpers.ts,
and bin/gstack-brain-context-load.ts is a follow-up.

Co-Authored-By: Jason Shultz <jasshultz@gmail.com>
Co-Authored-By: Claude <noreply@anthropic.com>
2026-05-16 14:05:24 -07:00
..
conductor-env-shim.ts v1.39.2.0 feat: GSTACK_* env-shim for Conductor + gbrain/gstack setup docs (#1534) 2026-05-16 12:32:33 -07:00
gbrain-exec.ts fix(gbrain-sync): centralize gbrain spawn surface + seed DATABASE_URL 2026-05-16 14:05:24 -07:00
gbrain-local-status.ts fix(gbrain): probe CLI without command builtin 2026-05-16 13:56:32 -07:00
gbrain-sources.ts v1.26.3.0 feat: /sync-gbrain skill + native code-surface orchestrator (#1314) 2026-05-04 09:29:48 -07:00
gstack-memory-helpers.ts v1.34.2.0 fix wave: /codex review on CLI 0.130+, /investigate learnings, /sync-gbrain on Supabase (3 community-reported bugs) (#1478) 2026-05-14 11:11:52 -04:00
worktree.ts feat: content security — 4-layer prompt injection defense for pair-agent (#815) 2026-04-06 14:41:06 -07:00