75 lines
2.5 KiB
JavaScript
75 lines
2.5 KiB
JavaScript
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#!/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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