fix(auth): throw error if dry-run publish determines lack of auth

Author: travi

lib/verify-auth.js

@@ -28,8 +28,13 @@ export default async function (npmrc, pkg, context) {
   //     whoamiResult.stderr.pipe(stderr, { end: false });
   //     await whoamiResult;
     publishDryRunResult.stdout.pipe(stdout, { end: false });
-    publishDryRunResult.stderr.pipe(stderr, { end: false });
-    await publishDryRunResult;
+    publishDryRunResult.stderr.pipe(stderr, { end: false, lines: true });
+    const {stdout} = await publishDryRunResult;
+    stdout.forEach((line) => {
+      if (line.includes("warn This command requires you to be logged in to https://registry.npmjs.org/")) {
+        throw new Error('no auth context');
+      }
+    })
   //   } catch {
   //     throw new AggregateError([getError("EINVALIDNPMTOKEN", { registry })]);
   //   }