feat: support mixed array types for watchOptions.ignored

- Support (string | RegExp)[] for watchOptions.ignored configuration
- Update type definitions to allow mixed arrays in WatchOptions
- Enhance ignoredToFunction to handle both string and RegExp items
- Update schema validation with Zod to accept mixed array types
- Add documentation examples for mixed array usage
- Update API documentation to reflect new type signature

This allows users to combine string patterns and RegExp objects
in watchOptions.ignored for more flexible file exclusion patterns.

Closes #10596

Author: Perfecto23

packages/rspack/etc/core.api.md

@@ -9026,7 +9026,7 @@ export class Watching {
 export type WatchOptions = {
     aggregateTimeout?: number;
     followSymlinks?: boolean;
-    ignored?: string | RegExp | string[];
+    ignored?: string | RegExp | (string | RegExp)[];
     poll?: number | boolean;
     stdin?: boolean;
 };

packages/rspack/src/NativeWatchFileSystem.ts

@@ -22,12 +22,24 @@ const stringToRegexp = (ignored: string) => {
 
 const ignoredToFunction = (ignored: Watchpack.WatchOptions["ignored"]) => {
 	if (Array.isArray(ignored)) {
-		const stringRegexps = ignored.map(i => stringToRegexp(i)).filter(Boolean);
-		if (stringRegexps.length === 0) {
+		const regexps: RegExp[] = [];
+		for (const item of ignored) {
+			if (typeof item === "string") {
+				const stringRegexp = stringToRegexp(item);
+				if (stringRegexp) {
+					regexps.push(new RegExp(stringRegexp));
+				}
+			} else if (item instanceof RegExp) {
+				regexps.push(item);
+			}
+		}
+		if (regexps.length === 0) {
 			return () => false;
 		}
-		const regexp = new RegExp(stringRegexps.join("|"));
-		return (item: string) => regexp.test(item.replace(/\\/g, "/"));
+		return (path: string) => {
+			const normalizedPath = path.replace(/\\/g, "/");
+			return regexps.some(regexp => regexp.test(normalizedPath));
+		};
 	}
 	if (typeof ignored === "string") {
 		const stringRegexp = stringToRegexp(ignored);

packages/rspack/src/config/types.ts

@@ -2756,7 +2756,7 @@ export type WatchOptions = {
 	/**
 	 * Ignore some files from being watched.
 	 */
-	ignored?: string | RegExp | string[];
+	ignored?: string | RegExp | (string | RegExp)[];
 
 	/**
 	 * Turn on polling by passing true, or specifying a poll interval in milliseconds.

packages/rspack/src/schema/config.ts

@@ -1440,7 +1440,10 @@ export const getRspackOptionsSchema = memoize(() => {
 		.strictObject({
 			aggregateTimeout: numberOrInfinity,
 			followSymlinks: z.boolean(),
-			ignored: z.string().array().or(z.instanceof(RegExp)).or(z.string()),
+			ignored: z
+				.string()
+				.or(z.instanceof(RegExp))
+				.or(z.string().or(z.instanceof(RegExp)).array()),
 			poll: numberOrInfinity.or(z.boolean()),
 			stdin: z.boolean()
 		})

website/docs/en/config/watch.mdx

@@ -58,7 +58,7 @@ export default {
 
 ### watchOptions.ignored
 
-- **Type:** `RegExp | string | string[]`
+- **Type:** `RegExp | string | (string | RegExp)[]`
 - **Default:** `/[\\/](?:\.git|node_modules)[\\/]/`
 
 The path that matches is excluded while watching. Watching many files can result in a lot of CPU or memory usage.
@@ -111,6 +111,17 @@ export default {
 };
 ```
 
+You can also mix strings and regular expressions in an array:
+
+```js title="rspack.config.mjs"
+export default {
+  //...
+  watchOptions: {
+    ignored: [/\.git/, '**/node_modules', '**/.cache'],
+  },
+};
+```
+
 When using glob patterns, Rspack convert them to regular expressions with [glob-to-regexp](https://github.com/fitzgen/glob-to-regexp), so make sure to get yourself familiar with it before you use glob patterns for watchOptions.ignored.
 
 ### watchOptions.poll

website/docs/zh/config/watch.mdx

@@ -58,7 +58,7 @@ export default {
 
 ### watchOptions.ignored
 
-- **类型：** `RegExp | string | string[]`
+- **类型：** `RegExp | string | (string | RegExp)[]`
 - **默认值：** `/[\\/](?:\.git|node_modules)[\\/]/`
 
 监听时排除匹配到的路径。监听大量文件可能会导致 CPU 或内存使用率过高。
@@ -111,6 +111,17 @@ export default {
 };
 ```
 
+你还可以在数组中混合使用字符串和正则表达式：
+
+```js title="rspack.config.mjs"
+export default {
+  //...
+  watchOptions: {
+    ignored: [/\.git/, '**/node_modules', '**/.cache'],
+  },
+};
+```
+
 当使用 glob 匹配时，Rspack 会将它们转换为正则表达式，因此在使用 glob 匹配之前，请确保你熟悉 [glob-to-regexp](https://github.com/fitzgen/glob-to-regexp)。
 
 ### watchOptions.poll