@codecademy/gamut

Index: package/bin/lib/run-command.mjs
===================================================================
--- package/bin/lib/run-command.mjs
+++ package/bin/lib/run-command.mjs
@@ -0,0 +1,22 @@
+import { spawn } from 'node:child_process';
+
+/**
+ * Spawns an external command and returns its exit code.
+ *
+ * @param {string} command
+ * @param {string[]} args
+ * @returns {Promise<number>}
+ */
+export function runCommand(command, args) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(command, args, { stdio: 'inherit', shell: false });
+    child.on('error', (/** @type {NodeJS.ErrnoException} */ err) => {
+      if (err.code === 'ENOENT') {
+        reject(new Error(`"${command}" not found on PATH. Is it installed?`));
+      } else {
+        reject(err);
+      }
+    });
+    child.on('close', (code) => resolve(code ?? 1));
+  });
+}