core: enhanced pm2 detection

packages/utils/lib/locate-pm2.ts

@@ -0,0 +1,18 @@
+import path from 'path';
+import fs from 'fs-extra';
+
+const PATH = process.env.PATH?.split(':') || [];
+
+// @ts-ignore
+const pm2: typeof import('pm2') | null = (() => {
+    for (const dir of PATH) {
+        try {
+            const info = fs.readlinkSync(path.resolve(dir, 'pm2'));
+            const p = path.resolve(dir, info);
+            return require(`${p.split('.bin')[0]}pm2`); // eslint-disable-line import/no-dynamic-require
+        } catch (e) { }
+    }
+    return null;
+})();
+
+export default pm2;