ttsc/lib/launcher/internal/resolveTtscserverBinary.js

General-purpose TypeScript-Go compiler, runtime, plugin host, and LSP host.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.resolveTtscserverBinary = resolveTtscserverBinary;
const node_fs_1 = __importDefault(require("node:fs"));
const node_path_1 = __importDefault(require("node:path"));
/**
 * Resolve the platform-specific ttscserver binary path. Looks first at the
 * TTSCSERVER_BINARY environment override (must be absolute), then at the
 * shipped per-platform npm package (`@ttsc/<platform>-<arch>/bin/ttscserver`),
 * then at the local-build fallback under `packages/native/`.
 *
 * Mirrors `resolveBinary` for the ttsc helper so editors that install ttsc via
 * pnpm see the LSP host alongside the existing helper.
 */
function resolveTtscserverBinary(opts = {}) {
    const env = opts.env ?? process.env;
    if (env.TTSCSERVER_BINARY && node_path_1.default.isAbsolute(env.TTSCSERVER_BINARY)) {
        return env.TTSCSERVER_BINARY;
    }
    try {
        return require.resolve(`@ttsc/${process.platform}-${process.arch}/bin/${process.platform === "win32" ? "ttscserver.exe" : "ttscserver"}`);
    }
    catch {
        /* fall through to local lookup */
    }
    const local = defaultLocalBinaryPath();
    if (local)
        return local;
    return null;
}
function defaultLocalBinaryPath() {
    const root = packageRootDir();
    const candidate = node_path_1.default.resolve(root, "..", "native", process.platform === "win32" ? "ttscserver.exe" : "ttscserver");
    return node_fs_1.default.existsSync(candidate) ? candidate : null;
}
function packageRootDir() {
    const moduleDir = node_path_1.default.resolve(__dirname, "..", "..");
    // Prefer the faster native variant; fall back to the JS implementation on
    // platforms (or environments) where `realpathSync.native` is unavailable.
    return node_fs_1.default.realpathSync.native?.(moduleDir) ?? node_fs_1.default.realpathSync(moduleDir);
}
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