`append-ecosystem.js`

60 lines
#!/usr/bin/env node
// Append a single PM2 app entry to ecosystem.config.cjs.
// Usage: append-ecosystem.js <name> <cwd> <script>

const fs = require("fs");
const path = require("path");

const [name, cwd, script] = process.argv.slice(2);
if (!name || !cwd || !script) {
  console.error("usage: append-ecosystem.js <name> <cwd> <script>");
  process.exit(1);
}

const file = path.join(__dirname, "ecosystem.config.cjs");

let apps = [];
if (fs.existsSync(file)) {
  try {
    const cfg = require(file);
    apps = cfg.apps || [];
  } catch (e) {
    console.error("Could not require existing ecosystem; starting fresh:", e.message);
  }
}

// After rsync, the script lives at cwd root with the same basename.
const localScript = path.basename(script);
const isPython = /\.py$/i.test(localScript);

const SHIM = path.join(__dirname, "root-shim.js");

const existing = apps.findIndex((a) => a.name === name);
const entry = {
  name,
  cwd,
  script: localScript,
  ...(isPython
    ? { interpreter: "python3" }
    : { node_args: `--require ${SHIM}` }), // monkey-patches /root/* → ~/kamatera-mirror/*
  autorestart: true,
  watch: false,
  max_memory_restart: "500M",
  env: {
    NODE_ENV: "production",
    LOCAL_MIGRATION: "1",
    KAMATERA_MIRROR: path.join(require("os").homedir(), "kamatera-mirror"),
  },
};

if (existing >= 0) {
  apps[existing] = entry;
  console.log(`updated ${name} in ecosystem.config.cjs`);
} else {
  apps.push(entry);
  console.log(`appended ${name} to ecosystem.config.cjs`);
}

const out = `module.exports = {\n  apps: ${JSON.stringify(apps, null, 2).replace(/\n/g, "\n  ")},\n};\n`;
fs.writeFileSync(file, out);