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gensokyo-dev
905cbaf239
Use pinned tsrs on supported development hosts while retaining stable official TypeScript on Windows and unsupported platforms. Partition compile/typecheck caches by actual compiler and qualify fallback hosts for compiler inputs and lifecycle hooks. Reduce PE acceptance startup through the existing bounded compiled CLI. Retain upstream named MCP definitions, every fixture/assertion and the original 30s deadline. Verify that browser transport loss preserves the observed target. Validation: full qualification and real host lanes in https://github.com/morluto/rea/actions/runs/39590450889 ; 450 focused regressions passed with two documented conditional skips. All 1724 production emit files match SHA-256 and size across both compilers. Current-head Codex/Greptile review found no actionable issues. Measurements and limitations are in the PR. Assisted-by: Reimu (gensokyo-skills:reimu-incident-triage)
76 lines
2.5 KiB
JavaScript
76 lines
2.5 KiB
JavaScript
#!/usr/bin/env node
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import { readFileSync } from "node:fs";
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import { createRequire } from "node:module";
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import { availableParallelism } from "node:os";
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import { dirname, resolve } from "node:path";
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import { fileURLToPath, pathToFileURL } from "node:url";
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/** Use the pinned package's platform inventory; let its launcher select libc. */
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export const selectTypeScriptCompiler = (
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platform,
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arch,
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optionalDependencies,
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) => {
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if (platform === "win32") return "typescript";
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const prefix = `@tsrs/${platform}-${arch}`;
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return Object.keys(optionalDependencies).some(
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(name) => name === prefix || name.startsWith(`${prefix}-`),
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)
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? "tsrs"
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: "typescript";
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};
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export const resolveTypeScriptCompiler = () => {
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const require = createRequire(import.meta.url);
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const rustPackagePath = require.resolve("tsrs/package.json");
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const rustPackage = JSON.parse(readFileSync(rustPackagePath, "utf8"));
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const compiler = selectTypeScriptCompiler(
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process.platform,
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process.arch,
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rustPackage.optionalDependencies,
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);
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const packagePath =
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compiler === "tsrs"
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? rustPackagePath
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: require.resolve("typescript/package.json");
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const metadata =
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compiler === "tsrs"
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? rustPackage
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: JSON.parse(readFileSync(packagePath, "utf8"));
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const command = compiler === "tsrs" ? "tsrs" : "tsc";
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return {
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name: compiler,
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identity: `${compiler}@${metadata.version}`,
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launcher: resolve(dirname(packagePath), metadata.bin[command]),
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};
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};
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const main = async () => {
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const compiler = resolveTypeScriptCompiler();
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if (
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process.env.TURBO_HASH !== undefined &&
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process.env.REA_TYPESCRIPT_COMPILER !== compiler.identity
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)
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throw new Error(
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"Compiler identity is missing or stale. Run Turbo through scripts/run-turbo.mjs.",
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);
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if (compiler.name === "tsrs") {
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const args = process.argv.slice(2);
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// Rust consumes --maxMemory once; duplicating it becomes an unknown option.
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// Preserve explicit resource choices rather than injecting another value.
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const defaults = [
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["--checkers", String(Math.min(2, availableParallelism()))],
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["--maxMemory", "3G"],
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].flatMap(([option, value]) =>
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args.includes(option) ? [] : [option, value],
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);
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process.argv.splice(2, 0, ...defaults);
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}
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// Delegate execution, diagnostics, status and signals to the package's launcher.
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// An unavailable binary on a supported host must fail rather than hide drift.
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await import(pathToFileURL(compiler.launcher).href);
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};
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if (process.argv[1] === fileURLToPath(import.meta.url)) await main();
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