first commit

node_modules/pidtree/lib/bin.js

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+import {spawn} from 'node:child_process';
+
+/**
+ * Strips known-benign noise from a command's stderr.
+ * @param {string} stderr
+ * @returns {string|undefined}
+ */
+export function stripStderr(stderr) {
+  if (!stderr) return;
+  stderr = stderr.trim();
+  // Strip bogus screen size error.
+  // See https://github.com/microsoft/vscode/issues/98590
+  const regex = /your \d+x\d+ screen size is bogus\. expect trouble/gi;
+  stderr = stderr.replaceAll(regex, '');
+
+  return stderr.trim();
+}
+
+/**
+ * Spawn a binary and read its stdout.
+ * @param {string} cmd The name of the binary to spawn.
+ * @param {string[]} args The arguments for the binary.
+ * @param {object} [options] Optional options for the spawn function.
+ * @param {Function} done done(err, stdout, code)
+ */
+export function run(cmd, args, options, done) {
+  if (typeof options === 'function') {
+    done = options;
+    options = undefined;
+  }
+
+  let executed = false;
+  const child = spawn(cmd, args, options);
+  let stdout = '';
+  let stderr = '';
+
+  child.stdout.on('data', (data) => {
+    stdout += data.toString();
+  });
+
+  child.stderr.on('data', (data) => {
+    stderr += data.toString();
+  });
+
+  child.on('error', (error) => {
+    if (executed) return;
+    executed = true;
+    // Pass the original error through so callers can inspect err.code
+    // (e.g. 'ENOENT' when the binary is missing) to decide on a fallback.
+    done(error);
+  });
+
+  child.on('close', (code) => {
+    if (executed) return;
+    executed = true;
+
+    stderr = stripStderr(stderr);
+    if (stderr) {
+      done(new Error(stderr));
+      return;
+    }
+
+    done(null, stdout, code);
+  });
+}