chore: setup knip to lint the workspace

knip.config.ts

@@ -0,0 +1,105 @@
+import {
+  KnipConfigPlugin,
+  combineNxKnipPlugins,
+  withEsbuildApps,
+  withEsbuildPublishableLibs,
+  withEslint,
+  withLibraryMapper,
+  withLocalNxPlugins,
+  withNxTsPaths,
+  withVitest,
+} from '@beaussan/nx-knip';
+
+const withIgnoreMockInLibs = () =>
+  withLibraryMapper({
+    mapperFn: ({ rootFolder }) => {
+      return {
+        ignore: [rootFolder + '/mocks/**', rootFolder + '/perf/**'],
+        entry: [rootFolder + '/src/bin.ts', rootFolder + '/perf/**/index.ts'],
+      };
+    },
+  });
+
+const withExamplePlugins = (): KnipConfigPlugin => () => {
+  return {
+    // Given there is no publish target, thoes libs were not picked up by the auto discovery
+    entry: [
+      'examples/plugins/src/index.ts',
+      'packages/plugin-lighthouse/src/index.ts',
+    ],
+  };
+};
+
+const withReactExample = (): KnipConfigPlugin => () => {
+  return {
+    entry: [
+      'examples/react-todos-app/src/index.jsx',
+      'examples/react-todos-app/test-setup.js',
+    ],
+    eslint: {
+      // Given there is no lint target on the project, we need to manually specify the entry point
+      config: ['examples/react-todos-app/.eslintrc.js'],
+    },
+  };
+};
+
+const withNxStandards = (): KnipConfigPlugin => () => {
+  return {
+    project: ['**/*.{ts,js,tsx,jsx}'],
+    ignore: ['tmp/**', 'node_modules/**'],
+    commitlint: {
+      config: ['commitlint.config.js'],
+    },
+    exclude: ['duplicates'],
+    entry: [
+      // unknown why this is needed, it should be picked up by knip from the vitest setup files
+      'testing/test-utils/src/index.ts',
+      'testing/test-utils/src/lib/fixtures/configs/*.ts',
+      'testing/test-setup/src/index.ts',
+      'testing/test-setup/src/lib/**/*.{js,mjs,ts,cjs,mts,cts}',
+      'global-setup.ts',
+      'global-setup.e2e.ts',
+      'examples/react-todos-app/code-pushup.config.js',
+      'examples/plugins/code-pushup.config.ts',
+      'testing/test-utils/src/lib/fixtures/configs/code-pushup.config.js',
+      'testing/test-utils/src/lib/fixtures/configs/code-pushup.empty.config.js',
+      'examples/plugins/src/package-json/src/index.ts',
+      // missing knip plugin for now, so this is in the root entry
+      'packages/models/zod2md.config.ts',
+      'code-pushup.config.ts',
+      'esbuild.config.js',
+      'tools/**/*.{js,mjs,ts,cjs,mts,cts}',
+    ],
+    ignoreDependencies: [
+      'prettier',
+      '@swc/helpers',
+      '@swc/cli',
+      '@nx/plugin',
+      '@nx/workspace',
+      // Same issue as the other vitest related, it should be picked up by knip from the vitest setup files
+      // 'global-setup.ts',
+      // 'global-setup.e2e.ts',
+
+      // Knip should be able to pick up this
+      'tsx',
+      // Not a npm library, and resolved in a different typescript path than the global import one
+      '@example/custom-plugin',
+
+      // Prettier magic resolve is not picked up by knip
+      '@trivago/prettier-plugin-sort-imports',
+    ],
+  };
+};
+
+export default combineNxKnipPlugins(
+  withNxTsPaths(),
+  withLocalNxPlugins({ pluginNames: ['nx-plugin'] }),
+  withEsbuildApps(),
+  withEsbuildPublishableLibs(),
+  withVitest(),
+  withIgnoreMockInLibs(),
+  withEslint(),
+  withReactExample(),
+  withExamplePlugins(),
+  withNxStandards(),
+);