Add `variables?: Record<string, unknown>` to DistributedRenderConfig
(§4.4) and LockedRenderConfig (§4.3). plan() snapshots the value into
meta/encoder.json so every chunk worker re-injects the same set via
captureOptions.variables, mirroring the in-process renderer's path.
The variables fold into planHash automatically because canonical
encoder.json bytes feed the hash: two plans with different variables
produce different hashes (chunked output depends on the injected
values); two plans with the same variables produce identical hashes
because canonical-JSON sorts keys.
The regression harnesses (distributed-simulated, lambda-local) also
forward the input's variables to plan() / Step Functions event so
fixtures that declare `renderConfig.variables` produce the same pixels
across modes. Previously the field was on the harness input shape but
silently dropped at the call boundary.
Phase 9 PR 9.1 of the distributed rendering plan.
The aws-lambda publish-readiness changes earlier in this PR moved
aws-lambda's types from `./src/index.ts` → `./dist/index.d.ts`. That
flipped producer's emit pass from "always works" to "needs aws-lambda
built first," because producer's `regression-harness-lambda-local.ts`
imports `@hyperframes/aws-lambda{,/handler}`. aws-lambda's own emit
pass in turn imports `@hyperframes/producer{,/distributed}` → circular
build dependency, so neither side can emit declarations in a single
pass. CI's first run on this PR failed Build, Typecheck, CLI smoke,
windows tests, and every perf job for this reason.
Fix: extract the public surface of `regression-harness-lambda-local.ts`
into a new types-only file that has no aws-lambda imports, point
`regression-harness.ts` at that types file, and exclude
`regression-harness-lambda-local.ts` from producer's tsconfig
`include`. The implementation file is still loaded at runtime via
`tsx` (lambda-local mode runs the harness through tsx, not from
producer's dist/), so the runtime contract is unchanged — producer's
tsc just no longer has to type-check it.
- `regression-harness-lambda-local-types.ts` (new): exports
`RunLambdaLocalInput` + `RunLambdaLocalRender` with zero
aws-lambda imports.
- `regression-harness-lambda-local.ts`: re-exports
`RunLambdaLocalInput` from the new types file (so the public
name stays stable for any future direct imports).
- `regression-harness.ts`: drops the `typeof import("...")` trick
and uses the explicit `RunLambdaLocalRender` signature for the
dynamically-loaded function.
- `tsconfig.json`: excludes `src/regression-harness-lambda-local.ts`
so producer's emit pass never resolves `@hyperframes/aws-lambda`.
Verified:
bun run build # full root build green
bun run verify:packed-manifests # all packages publish-safe
* feat(producer): add --mode=lambda-local to the regression harness
Third harness mode that drives the OSS @hyperframes/aws-lambda handler
through the exact event sequence Step Functions produces in
production:
handler({Action: "plan"}) → planDir tarball on fake S3
handler({Action: "renderChunk"}) × N → chunk artifacts on fake S3
handler({Action: "assemble"}) → final mp4/mov/png-sequence
The S3 client is a filesystem-backed fake (every s3://<bucket>/<key>
URI maps to <tempRoot>/s3/<key>), so the harness exercises the
handler's event-parsing + tar/S3 conventions + dispatch logic on top
of the underlying producer primitives. Regressions in event JSON
shape, S3 key layout, or plan-hash boundary checks now surface in
the same CI run as the in-process and distributed-simulated modes
without paying for a real AWS round-trip.
Deliberately NOT a Docker/RIE invocation — that would gate the
producer test suite on Docker-in-Docker support which most CI
runners lack. Real-ZIP-via-RIE tests live in
packages/aws-lambda/scripts/ (probe:beginframe) and the
maintainer-run smoke.sh.
Wired up via:
- HarnessMode union extended to include "lambda-local"
- parseHarnessModeFlag accepts --mode=lambda-local
- regression-harness.ts dispatches to runLambdaLocalRender for
the new mode, sharing the distributed-support gate +
pathology-floor threshold with distributed-simulated mode
- package.json scripts: test:lambda-local + docker:test:lambda-local
- producer.devDependencies += @hyperframes/aws-lambda (workspace)
- producer/tsconfig.json gains path mappings to self so the type
cycle through aws-lambda's source resolves at typecheck time
without needing producer to be pre-built
Tests: 3 new unit tests on parseHarnessModeFlag + resolveMinPsnrForMode
cover the new mode. End-to-end PSNR contract still runs through
Dockerfile.test (manual + CI).
* refactor(producer): /simplify pass on lambda-local harness imports
Three small cleanups on top of the lambda-local harness:
- Drop the unused createReadStream import + its `void` workaround
comment. The aws-lambda handler's tar / S3 transport pulls
createReadStream from its own imports; this file never references
it directly.
- Hoist the dynamic `await import("node:fs")` calls for
writeFileSync out of FilesystemBackedFakeS3.send into the static
import block. Repeated PutObject calls don't need to repay the
dynamic-import cost.
- Hoist the dynamic `await import("@hyperframes/aws-lambda")` call
for untarDirectory similarly. Drops the now-redundant duplicate
aws-lambda import statement.
The PutObject body branch also collapses: `body instanceof Buffer`
and `typeof body === "string"` both call writeFileSync identically,
so they share one branch.
No behavior changes.
* fix(producer): lazy-import lambda-local harness module
The static import of regression-harness-lambda-local.ts pulled
@hyperframes/aws-lambda (and its @aws-sdk/* + @sparticuz/chromium
transitive deps) at module-load time. Dockerfile.test only copies
the producer's own files into the container, so aws-lambda's src
isn't present at runtime — and even `--mode=in-process` failed:
Error [ERR_MODULE_NOT_FOUND]: Cannot find module
'/app/packages/producer/node_modules/@hyperframes/aws-lambda/src/index.ts'
imported from /app/packages/producer/src/regression-harness-lambda-local.ts
Load the module on demand instead. `--mode=lambda-local` callers
pay the import cost; the existing in-process and distributed-
simulated modes don't.
* fix(producer): address PR review on lambda-local harness
Three review items from Vai:
- `Config.width`/`Config.height` are now plumbed through
RunLambdaLocalInput rather than hardcoded inside
runLambdaLocalRender. Lambda-local's whole point is to catch
event-shape drift; if the handler ever starts honouring
Config.width/height (e.g. for canvas sizing), having those
values flow from the caller means the harness sees what the
fixture authored. The interface change makes the eventual
upgrade-to-real-fixture-resolution a one-line dispatch swap.
- Drop the dead `export type { Fps }` and its unused import
from @hyperframes/core. The module never re-exports it.
- The dispatch site in regression-harness.ts now passes 1920×1080
explicitly with a comment marking it as a placeholder until
the harness compiles the composition HTML up-front to surface
the authored data-width/data-height. distributed-simulated
mode uses the same placeholder internally, kept for parity.
No behavior change in the existing modes; lambda-local now has a
clear extension point for honouring fixture dimensions.
James Russo