Don't show full warning on vercel

Author: Luca Forstner

packages/nextjs/src/config/webpack.ts

@@ -633,19 +633,24 @@ export function getWebpackPluginOptions(
       // Hardcoded way to check for missing auth token until we have a better way of doing this.
       if (err && err.message.includes('Authentication credentials were not provided.')) {
         const warningPrefix = `${chalk.yellow('warn')}  -`;
-        // eslint-disable-next-line no-console
-        console.warn(
-          `${warningPrefix} ${
-            `${chalk.bold('No Sentry auth token configured.')} Source maps will not be uploaded.\n` +
+
+        let msg;
+
+        if (process.env.VERCEL) {
+          msg = "To fix this, use Sentry's Vercel integration: https://vercel.com/integrations/sentry";
+        } else {
+          msg =
             'You can find information on how to generate a Sentry auth token here: https://docs.sentry.io/api/auth/\n' +
             `After generating a Sentry auth token, set it via the ${chalk.bold.cyan(
               'SENTRY_AUTH_TOKEN',
-            )} environment variable during the build.\n`
-          }${
-            process.env.VERCEL
-              ? "If you're deploying to Vercel, use the Vercel integration: https://vercel.com/integrations/sentry\n"
-              : ''
-          }`,
+            )} environment variable during the build.`;
+        }
+
+        // eslint-disable-next-line no-console
+        console.warn(
+          `${warningPrefix} ${chalk.bold(
+            'No Sentry auth token configured.',
+          )} Source maps will not be uploaded.\n${msg}\n`,
         );
 
         return;