fix(nextjs): fix .next folder linting

packages/next/src/generators/application/application.spec.ts

@@ -364,6 +364,7 @@ describe('app', () => {
             ],
             "ignorePatterns": Array [
               "!**/*",
+              ".next/**/*",
             ],
             "overrides": Array [
               Object {

packages/next/src/generators/application/lib/add-linting.ts

@@ -36,6 +36,11 @@ export async function addLinting(
         // Turn off @next/next/no-html-link-for-pages since there is an issue with nextjs throwing linting errors
         // TODO(nicholas): remove after Vercel updates nextjs linter to only lint ["*.ts", "*.tsx", "*.js", "*.jsx"]
 
+        reactEslintJson.ignorePatterns = [
+          ...reactEslintJson.ignorePatterns,
+          '.next/**/*',
+        ];
+
         reactEslintJson.rules = {
           '@next/next/no-html-link-for-pages': 'off',
           ...reactEslintJson.rules,

packages/next/src/migrations/update-14-5-7/update-next-eslint.spec.ts

@@ -0,0 +1,60 @@
+import { addProjectConfiguration, readJson, Tree } from '@nrwl/devkit';
+import { createTreeWithEmptyWorkspace } from '@nrwl/devkit/testing';
+import { updateNextEslint } from './update-next-eslint';
+
+describe('Add next eslint 14.5.7', () => {
+  let tree: Tree;
+
+  beforeEach(async () => {
+    tree = createTreeWithEmptyWorkspace();
+
+    addProjectConfiguration(tree, 'app1', {
+      root: 'apps/app1',
+      targets: {
+        build: {
+          executor: '@nrwl/next:build',
+        },
+      },
+    });
+
+    tree.write(
+      'nx.json',
+      JSON.stringify({
+        projects: {
+          app1: {},
+        },
+      })
+    );
+  });
+
+  it('should update "next" config ignorePattern', async () => {
+    tree.write(
+      'apps/app1/.eslintrc.json',
+      JSON.stringify({
+        extends: ['../../.eslintrc.json'],
+        ignorePatterns: ['!**/*'],
+      })
+    );
+
+    await updateNextEslint(tree);
+
+    const result = readJson(tree, 'apps/app1/.eslintrc.json');
+    expect(result.ignorePatterns).toContain('.next/**/*');
+  });
+
+  it('should not update "next" config ignorePattern if .next pattern already exists', async () => {
+    tree.write(
+      'apps/app1/.eslintrc.json',
+      JSON.stringify({
+        extends: ['../../.eslintrc.json'],
+        ignorePatterns: ['!**/*', '.next/**/*', '/foo/bar'],
+      })
+    );
+    const before = readJson(tree, 'apps/app1/.eslintrc.json');
+
+    await updateNextEslint(tree);
+
+    const result = readJson(tree, 'apps/app1/.eslintrc.json');
+    expect(result.ignorePatterns).toEqual(before.ignorePatterns);
+  });
+});

packages/next/src/migrations/update-14-5-7/update-next-eslint.ts

@@ -0,0 +1,28 @@
+import { formatFiles, getProjects, Tree, updateJson } from '@nrwl/devkit';
+
+export async function updateNextEslint(host: Tree) {
+  const projects = getProjects(host);
+
+  projects.forEach((project) => {
+    if (project.targets?.build?.executor !== '@nrwl/next:build') return;
+
+    const eslintPath = `${project.root}/.eslintrc.json`;
+
+    if (!host.exists(eslintPath)) return;
+
+    updateJson(host, eslintPath, (eslintConfig) => {
+      const nextIgnorePattern = '.next/**/*';
+
+      if (eslintConfig.ignorePatterns.indexOf(nextIgnorePattern) < 0) {
+        eslintConfig.ignorePatterns = [
+          ...eslintConfig.ignorePatterns,
+          nextIgnorePattern,
+        ];
+      }
+      return eslintConfig;
+    });
+  });
+  await formatFiles(host);
+}
+
+export default updateNextEslint;