fix(service-cloud): tmpdir fallback for default data dir on read-only serverless filesystems#1233
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The studio Vite build aliases 'crypto' to mocks/node-polyfills.ts. @objectstack/runtime imports `webcrypto` from 'crypto', so the polyfill must export it. Map webcrypto to globalThis.crypto (Web Crypto API) which provides the same SubtleCrypto/getRandomValues surface in browsers. Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/49abf5ad-ca45-4ce6-b799-657ad8f2cd69 Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>
apps/cloud booted on Vercel was failing with "ENOENT: no such file or
directory, mkdir '/var/task/.objectstack'" because cloud-stack /
runtime-stack / project-kernel-factory / environment-registry /
artifact-environment-registry all hard-coded
`<cwd>/.objectstack/data` for the default SQLite control DB and
InMemoryDriver per-project JSON paths. /var/task on Vercel (and
analogous bundle roots on AWS Lambda / Netlify) is read-only.
Centralise the resolution in a new resolveDefaultDataDir() helper that:
1. Honours OS_DATA_DIR.
2. Defaults to <cwd>/.objectstack/data on writable filesystems.
3. Falls back to <os.tmpdir()>/.objectstack/data on Vercel /
AWS_LAMBDA_FUNCTION_NAME / NETLIFY (or OS_READONLY_FS=1) with a
one-time warning advising users to configure
OS_CONTROL_DATABASE_URL for production.
12 new unit tests cover the precedence and serverless detection.
CHANGELOG updated.
Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/d91ac991-ce21-4bce-a544-d2053fd5f8a5
Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>
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hotlong
May 8, 2026 00:15
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…allback Replace the ephemeral /tmp SQLite fallback (introduced in 5833df4) with a fail-fast error on serverless platforms. /tmp on Vercel/Lambda/Netlify is per-instance and ephemeral — SQLite there silently corrupts data across concurrent cold starts. The correct default for Vercel is Turso (libSQL), which ObjectStack already supports as the natural serverless pairing. Behaviour: - resolveDefaultDataDir() throws on serverless (Vercel / AWS Lambda / Netlify / OS_READONLY_FS=1) unless OS_DATA_DIR is set, with an error message naming TURSO_DATABASE_URL, TURSO_AUTH_TOKEN, OS_CONTROL_DATABASE_URL, and OS_DATA_DIR (escape hatch for EFS / mounted volumes). - cloud-stack.ts evaluates the file-backed default lazily so any of OS_CONTROL_DATABASE_URL / OS_DATABASE_URL / TURSO_DATABASE_URL short-circuit it (Vercel deployments configured with Turso boot cleanly). - On writable filesystems (objectstack dev / serve, Docker, bare metal) the existing <cwd>/.objectstack/data behaviour is preserved. Tests rewritten (15 cases) to assert throw-on-serverless and error message contents. CHANGELOG entry updated. Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/9969986e-eb1d-4d25-b31b-75fb22429b04 Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>
hotlong
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May 8, 2026
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webcryptomissing export in studio node polyfill (Vercel studio build)ENOENT: mkdir '/var/task/.objectstack'cold-start failure on Vercel/Lambda/tmpSQLite fallback with fail-fast error pointing atTURSO_DATABASE_URL(Turso is the default ObjectStack pairing for serverless; ephemeral/tmpwould silently corrupt data across cold starts)resolveDefaultDataDir()throws on Vercel/Lambda/Netlify whenOS_DATA_DIRis unsetcloud-stack.tscontrol-driver default made lazy soTURSO_DATABASE_URL/OS_CONTROL_DATABASE_URLshort-circuit itpnpm buildgreen (51/51 tasks)