Remove eslint warning when no eslint config is present

packages/next/lib/eslint/runLintCheck.ts

@@ -321,13 +321,17 @@ export async function runLintCheck(
         outputFile
       )
     } else {
-      // Display warning if no ESLint configuration is present during "next build"
+      // Display warning if no ESLint configuration is present inside
+      // config file during "next build", no warning is shown when
+      // no eslintrc file is present
       if (lintDuringBuild) {
-        Log.warn(
-          `No ESLint configuration detected. Run ${chalk.bold.cyan(
-            'next lint'
-          )} to begin setup`
-        )
+        if (eslintrcFile) {
+          Log.warn(
+            `No ESLint configuration detected. Run ${chalk.bold.cyan(
+              'next lint'
+            )} to begin setup`
+          )
+        }
         return null
       } else {
         // Ask user what config they would like to start with for first time "next lint" setup

test/e2e/no-eslint-warn-with-no-eslint-config/index.test.ts

@@ -0,0 +1,33 @@
+import { createNext } from 'e2e-utils'
+import { NextInstance } from 'test/lib/next-modes/base'
+import { renderViaHTTP } from 'next-test-utils'
+
+describe('no-eslint-warn-with-no-eslint-config', () => {
+  let next: NextInstance
+
+  beforeAll(async () => {
+    next = await createNext({
+      files: {
+        'pages/index.js': `
+          export default function Page() { 
+            return <p>hello world</p>
+          } 
+        `,
+      },
+      dependencies: {},
+    })
+  })
+  afterAll(() => next.destroy())
+
+  it('should render', async () => {
+    const html = await renderViaHTTP(next.url, '/')
+    expect(html).toContain('hello world')
+  })
+
+  it('should not have eslint warnings when no eslint config', async () => {
+    expect(next.cliOutput).not.toContain(
+      'No ESLint configuration detected. Run next lint to begin setup'
+    )
+    expect(next.cliOutput).not.toBe('warn')
+  })
+})