clean PATH

Author: nojaf

lib_dev/process.js

@@ -69,11 +69,29 @@ export function setup(cwd = process.cwd()) {
     const stdoutChunks = [];
     const stderrChunks = [];
 
+    // build env and clean PATH
+    const env = options.env
+      ? { ...process.env, ...options.env }
+      : { ...process.env };
+    if (env.PATH) {
+      const parts = env.PATH.split(":").filter(Boolean);
+      const valid = [];
+      for (const p of parts) {
+        try {
+          const stat = await fs.stat(p);
+          if (stat.isDirectory()) valid.push(p);
+        } catch {
+          // ignore non‑existent dirs
+        }
+      }
+      env.PATH = valid.join(":");
+    }
+
     const subprocess = child_process.spawn(command, args, {
       cwd,
       shell: process.platform === "win32",
       stdio: ["ignore", "pipe", "pipe"],
-      env: options.env ? { ...process.env, ...options.env } : process.env,
+      env,
       ...options,
     });
 
@@ -268,10 +286,7 @@ export function setup(cwd = process.cwd()) {
      * @return {Promise<ExecResult>}
      */
     npm(args = [], options = {}) {
-      return exec(npmBin, args, {
-        ...options,
-        shell: process.platform !== "win32" || options.shell,
-      });
+      return exec("npm", args, options);
     },
   };
 }