answers.mjs RawHistoryFolder

1// SPDX-License-Identifier: MIT
2//
3// Generates testdata/runner.json.gz: what the C# runner's expression engine
4// (actions/runner, src/Sdk/DTExpressions2) answers on the expressions of
5// testdata/oracle.json.gz. Needs the .NET SDK and a clone of actions/runner:
6//
7//   dotnet build -c Release expr/gen/runner -p:RunnerSrc=<runner>/src/Sdk
8//   RUNNER_CLONE=<runner clone> node expr/gen/runner/answers.mjs | gzip -9 -n > expr/testdata/runner.json.gz
9
10import { readFileSync, writeFileSync, mkdtempSync } from "node:fs";
11import { tmpdir } from "node:os";
12import { join } from "node:path";
13import { runDriver, here, checkEnvironment } from "./env.mjs";
14import { gunzipSync } from "node:zlib";
15
16const env = checkEnvironment(process.argv[2]);
17
18const oracle = JSON.parse(gunzipSync(readFileSync(join(here, "../../testdata/oracle.json.gz"))));
19const dir = mkdtempSync(join(tmpdir(), "runner-answers-"));
20const input = join(dir, "in.json");
21writeFileSync(input, JSON.stringify({ contexts: oracle.contexts, cases: oracle.cases.map(c => ({ e: c.e })) }));
22const out = runDriver([input]).split("\n").filter(Boolean);
23if (out.length !== oracle.cases.length) throw new Error(`got ${out.length} answers for ${oracle.cases.length} cases`);
24const cases = out.map((l, i) => {
25  const r = JSON.parse(l);
26  return { e: oracle.cases[i].e, ...r };
27});
28process.stdout.write(JSON.stringify({
29  reference: { source: "actions/runner src/Sdk/DTExpressions2 (Expressions2)", commit: env.commit, runtime: env.runtime },
30  cases,
31}));