Pass ignore.files patterns to scanning tools

packages/react-doctor/src/scan.ts

@@ -361,6 +361,7 @@ export const scan = async (directory: string, inputOptions: ScanOptions = {}): P
     includePaths: inputOptions.includePaths,
   };
 
+  const ignoreFilePatterns = userConfig?.ignore?.files ?? [];
   const includePaths = options.includePaths ?? [];
   const isDiffMode = includePaths.length > 0;
 
@@ -412,6 +413,7 @@ export const scan = async (directory: string, inputOptions: ScanOptions = {}): P
             projectInfo.framework,
             projectInfo.hasReactCompiler,
             jsxIncludePaths,
+            ignoreFilePatterns,
           );
           lintSpinner?.succeed("Running lint checks.");
           return lintDiagnostics;
@@ -437,7 +439,7 @@ export const scan = async (directory: string, inputOptions: ScanOptions = {}): P
             ? null
             : spinner("Detecting dead code...").start();
           try {
-            const knipDiagnostics = await runKnip(directory);
+            const knipDiagnostics = await runKnip(directory, ignoreFilePatterns);
             deadCodeSpinner?.succeed("Detecting dead code.");
             return knipDiagnostics;
           } catch (error) {

packages/react-doctor/src/utils/run-knip.ts

@@ -3,6 +3,7 @@ import path from "node:path";
 import { main } from "knip";
 import { createOptions } from "knip/session";
 import type { Diagnostic, KnipIssueRecords, KnipResults } from "../types.js";
+import { compileGlobPattern } from "./match-glob-pattern.js";
 
 const KNIP_CATEGORY_MAP: Record<string, string> = {
   files: "Dead Code",
@@ -135,7 +136,7 @@ const hasNodeModules = (directory: string): boolean => {
   return fs.existsSync(nodeModulesPath) && fs.statSync(nodeModulesPath).isDirectory();
 };
 
-export const runKnip = async (rootDirectory: string): Promise<Diagnostic[]> => {
+export const runKnip = async (rootDirectory: string, ignorePatterns?: string[]): Promise<Diagnostic[]> => {
   const monorepoRoot = findMonorepoRoot(rootDirectory);
   const hasInstalledDependencies =
     hasNodeModules(rootDirectory) || (monorepoRoot !== null && hasNodeModules(monorepoRoot));
@@ -186,5 +187,13 @@ export const runKnip = async (rootDirectory: string): Promise<Diagnostic[]> => {
     diagnostics.push(...collectIssueRecords(issues[issueType], issueType, rootDirectory));
   }
 
+  if (ignorePatterns && ignorePatterns.length > 0) {
+    const compiled = ignorePatterns.map(compileGlobPattern);
+    return diagnostics.filter((diagnostic) => {
+      const normalized = diagnostic.filePath.replace(/\\/g, "/");
+      return !compiled.some((pattern) => pattern.test(normalized));
+    });
+  }
+
   return diagnostics;
 };

packages/react-doctor/src/utils/run-oxlint.ts

@@ -258,6 +258,7 @@ export const runOxlint = async (
   framework: Framework,
   hasReactCompiler: boolean,
   includePaths?: string[],
+  ignorePatterns?: string[],
 ): Promise<Diagnostic[]> => {
   if (includePaths !== undefined && includePaths.length === 0) {
     return [];
@@ -278,6 +279,12 @@ export const runOxlint = async (
       args.push("--tsconfig", "./tsconfig.json");
     }
 
+    if (ignorePatterns) {
+      for (const pattern of ignorePatterns) {
+        args.push("--ignore-pattern", pattern);
+      }
+    }
+
     if (includePaths !== undefined) {
       args.push(...includePaths);
     } else {