feat: add writeToDisk option for dev server support

- Add writeToDisk option to write .d.ts files directly to disk
- Useful for rsbuild/rspack dev server which uses in-memory FS
- Set writeToDisk: true in dev mode to see generated types

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

dist/csv-loader/loader.d.mts

@@ -11,6 +11,8 @@ interface CsvLoaderOptions {
     emitTypes?: boolean;
     /** Output directory for generated type files (relative to output path) */
     typesOutputDir?: string;
+    /** Write .d.ts files to disk (useful for dev server) */
+    writeToDisk?: boolean;
 }
 declare function csvLoader(this: LoaderContext<CsvLoaderOptions>, content: string): string | Buffer;
 

dist/csv-loader/loader.d.ts

@@ -11,6 +11,8 @@ interface CsvLoaderOptions {
     emitTypes?: boolean;
     /** Output directory for generated type files (relative to output path) */
     typesOutputDir?: string;
+    /** Write .d.ts files to disk (useful for dev server) */
+    writeToDisk?: boolean;
 }
 declare function csvLoader(this: LoaderContext<CsvLoaderOptions>, content: string): string | Buffer;
 

dist/csv-loader/loader.js

@@ -365,6 +365,7 @@ function createValidator(schema) {
 
 // src/csv-loader/loader.ts
 var path = __toESM(require("path"));
+var fs = __toESM(require("fs"));
 function schemaToTypeString(schema) {
   switch (schema.type) {
     case "string":
@@ -411,6 +412,7 @@ function csvLoader(content) {
   const trim = options?.trim ?? true;
   const emitTypes = options?.emitTypes ?? true;
   const typesOutputDir = options?.typesOutputDir ?? "";
+  const writeToDisk = options?.writeToDisk ?? false;
   const records = (0, import_sync.parse)(content, {
     delimiter,
     quote,
@@ -475,7 +477,13 @@ function csvLoader(content) {
     const dtsFileName = relativePath.replace(/\.csv$/, ".d.ts");
     const outputPath = typesOutputDir ? path.join(typesOutputDir, dtsFileName) : dtsFileName;
     const dtsContent = generateTypeDefinition(this.resourcePath, propertyConfigs, `./${relativePath}`);
-    this.emitFile?.(outputPath, dtsContent);
+    if (writeToDisk) {
+      const absolutePath = path.join(this.context || process.cwd(), typesOutputDir || "", dtsFileName);
+      fs.mkdirSync(path.dirname(absolutePath), { recursive: true });
+      fs.writeFileSync(absolutePath, dtsContent);
+    } else {
+      this.emitFile?.(outputPath, dtsContent);
+    }
   }
   return `export default ${json};`;
 }

dist/csv-loader/loader.mjs

@@ -331,6 +331,7 @@ function createValidator(schema) {
 
 // src/csv-loader/loader.ts
 import * as path from "path";
+import * as fs from "fs";
 function schemaToTypeString(schema) {
   switch (schema.type) {
     case "string":
@@ -377,6 +378,7 @@ function csvLoader(content) {
   const trim = options?.trim ?? true;
   const emitTypes = options?.emitTypes ?? true;
   const typesOutputDir = options?.typesOutputDir ?? "";
+  const writeToDisk = options?.writeToDisk ?? false;
   const records = parse(content, {
     delimiter,
     quote,
@@ -441,7 +443,13 @@ function csvLoader(content) {
     const dtsFileName = relativePath.replace(/\.csv$/, ".d.ts");
     const outputPath = typesOutputDir ? path.join(typesOutputDir, dtsFileName) : dtsFileName;
     const dtsContent = generateTypeDefinition(this.resourcePath, propertyConfigs, `./${relativePath}`);
-    this.emitFile?.(outputPath, dtsContent);
+    if (writeToDisk) {
+      const absolutePath = path.join(this.context || process.cwd(), typesOutputDir || "", dtsFileName);
+      fs.mkdirSync(path.dirname(absolutePath), { recursive: true });
+      fs.writeFileSync(absolutePath, dtsContent);
+    } else {
+      this.emitFile?.(outputPath, dtsContent);
+    }
   }
   return `export default ${json};`;
 }