eolas-mech-mcp/cli.js

A Node.js wrapper for the eolas-mech-mcp Python server.

#!/usr/bin/env node

const { spawnSync, execSync } = require("child_process");
const path = require("path");
const fs = require("fs");

// Determine the correct python and pip commands to use.
// This helps avoid issues where `python` is not aliased to `python3`.
const pythonCmd = process.platform === 'win32' ? 'python' : 'python3';

function run(command, args, silent = false) {
    const options = silent ? { stdio: "ignore" } : { stdio: "inherit" };
    const result = spawnSync(command, args, options);
    if (result.error || result.status !== 0) {
        // If the command fails, exit silently. The MCP client will report the disconnection.
        process.exit(result.status || 1);
    }
}

// 1. Ensure the Python package `eolas-mech-mcp` is installed to the user's
//    local directory. This avoids "externally-managed-environment" errors on
//    systems with protected Python installations (PEP 668).
run(pythonCmd, ["-m", "pip", "install", "--quiet", "--disable-pip-version-check", "--upgrade", "--user", "--break-system-packages", "--no-warn-script-location", "eolas-mech-mcp"], true);

// Directly run the package as a module (avoids stale console scripts)
run(pythonCmd, ["-m", "eolas_mech_mcp"], false);