@dr-yaml/simulator

Deterministic CI/CD pipeline simulator over @dr-yaml/ir. Computes per-job status (will-run, skipped, failed-force), duration, and cost — without running the pipeline.

Install

npm install @dr-yaml/simulator @dr-yaml/ir

Usage

import { simulate } from "@dr-yaml/simulator";
import type { Pipeline } from "@dr-yaml/ir";

const result = simulate(pipeline, {
  event: "push",
  branch: "main",
  availableSecrets: new Set(["AWS_KEY"]),
});
// result.jobs: per-job { id, status, reason, durationMin, costUsd }
// result.warnings: unavailable secrets, orphaned needs, etc.

Pure function; same input → same output, always. 90+ golden scenarios in the repo assert determinism.

License

MIT.