feat(migration): integrate batch import rewriting into migration command

Add NAPI bindings for rewrite_imports_in_directory to expose the Rust
batch import rewriting functionality to TypeScript. The migration command
now rewrites vite/vitest imports in all TypeScript/JavaScript files,
not just config files.

Changes:
- Add BatchRewriteResult and BatchRewriteError NAPI structs
- Add rewriteImportsInDirectory NAPI function
- Call rewriteAllImports in both standalone and monorepo migrations
- Display progress showing modified files and any errors

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: fengmk2

packages/global/binding/index.d.ts

@@ -1,5 +1,21 @@
 /* auto-generated by NAPI-RS */
 /* eslint-disable */
+/** Error from batch import rewriting */
+export interface BatchRewriteError {
+  /** The file path that had an error */
+  path: string;
+  /** The error message */
+  message: string;
+}
+
+/** Result of rewriting imports in multiple files */
+export interface BatchRewriteResult {
+  /** Files that were modified */
+  modifiedFiles: Array<string>;
+  /** Files that had errors */
+  errors: Array<BatchRewriteError>;
+}
+
 /**
  * Configuration options passed from JavaScript to Rust.
  *
@@ -177,6 +193,35 @@ export interface PathAccess {
  */
 export declare function rewriteImport(viteConfigPath: string): RewriteResult;
 
+/**
+ * Rewrite imports in all TypeScript/JavaScript files under a directory
+ *
+ * This function finds all TypeScript and JavaScript files in the specified directory
+ * (respecting `.gitignore` rules), applies the import rewrite rules to each file,
+ * and writes the modified content back to disk.
+ *
+ * # Arguments
+ *
+ * * `root` - The root directory to search for files
+ *
+ * # Returns
+ *
+ * Returns a `BatchRewriteResult` containing:
+ * - `modifiedFiles`: Files that were changed
+ * - `errors`: Files that had errors during processing
+ *
+ * # Example
+ *
+ * ```javascript
+ * const result = rewriteImportsInDirectory('./src');
+ * console.log(`Modified ${result.modifiedFiles.length} files`);
+ * for (const file of result.modifiedFiles) {
+ *     console.log(`  ${file}`);
+ * }
+ * ```
+ */
+export declare function rewriteImportsInDirectory(root: string): BatchRewriteResult;
+
 /** Result of rewriting imports in vite config */
 export interface RewriteResult {
   /** The updated vite config content */

packages/global/binding/index.js

@@ -767,6 +767,7 @@ const {
   downloadPackageManager,
   mergeJsonConfig,
   rewriteImport,
+  rewriteImportsInDirectory,
   rewriteScripts,
   run,
   runCommand,
@@ -775,6 +776,7 @@ export { detectWorkspace };
 export { downloadPackageManager };
 export { mergeJsonConfig };
 export { rewriteImport };
+export { rewriteImportsInDirectory };
 export { rewriteScripts };
 export { run };
 export { runCommand };

packages/global/binding/src/migration.rs

@@ -119,3 +119,68 @@ pub fn rewrite_import(vite_config_path: String) -> Result<RewriteResult> {
         .map_err(anyhow::Error::from)?;
     Ok(RewriteResult { content: result.content, updated: result.updated })
 }
+
+/// Error from batch import rewriting
+#[napi(object)]
+pub struct BatchRewriteError {
+    /// The file path that had an error
+    pub path: String,
+    /// The error message
+    pub message: String,
+}
+
+/// Result of rewriting imports in multiple files
+#[napi(object)]
+pub struct BatchRewriteResult {
+    /// Files that were modified
+    pub modified_files: Vec<String>,
+    /// Files that had errors
+    pub errors: Vec<BatchRewriteError>,
+}
+
+/// Rewrite imports in all TypeScript/JavaScript files under a directory
+///
+/// This function finds all TypeScript and JavaScript files in the specified directory
+/// (respecting `.gitignore` rules), applies the import rewrite rules to each file,
+/// and writes the modified content back to disk.
+///
+/// # Arguments
+///
+/// * `root` - The root directory to search for files
+///
+/// # Returns
+///
+/// Returns a `BatchRewriteResult` containing:
+/// - `modifiedFiles`: Files that were changed
+/// - `errors`: Files that had errors during processing
+///
+/// # Example
+///
+/// ```javascript
+/// const result = rewriteImportsInDirectory('./src');
+/// console.log(`Modified ${result.modifiedFiles.length} files`);
+/// for (const file of result.modifiedFiles) {
+///     console.log(`  ${file}`);
+/// }
+/// ```
+#[napi]
+pub fn rewrite_imports_in_directory(root: String) -> Result<BatchRewriteResult> {
+    let result = vite_migration::rewrite_imports_in_directory(Path::new(&root))
+        .map_err(anyhow::Error::from)?;
+
+    Ok(BatchRewriteResult {
+        modified_files: result
+            .modified_files
+            .iter()
+            .map(|p| p.to_string_lossy().to_string())
+            .collect(),
+        errors: result
+            .errors
+            .iter()
+            .map(|(p, m)| BatchRewriteError {
+                path: p.to_string_lossy().to_string(),
+                message: m.clone(),
+            })
+            .collect(),
+    })
+}

packages/global/snap-tests/migration-from-vitest/snap.txt

@@ -9,6 +9,10 @@
 │
 ◆  ✅ Rewrote import in vitest.config.ts
 │
+◆  ✅ Rewrote imports in 1 file(s)
+│
+●    test/hello.ts
+│
 └  ✨ Migration completed!
 
 
@@ -62,8 +66,8 @@ export default defineConfig({
 }
 
 > cat test/hello.ts # check test/hello.ts
-import { server } from '@vitest/browser-playwright/context';
-import { test, describe, expect, it } from 'vitest';
+import { server } from '@voidzero-dev/vite-plus/test/browser-playwright/context';
+import { test, describe, expect, it } from '@voidzero-dev/vite-plus/test';
 
 const { readFile } = server.commands;
 

packages/global/src/migration/migrator.ts

@@ -9,6 +9,7 @@ import {
   mergeJsonConfig,
   rewriteScripts,
   rewriteImport,
+  rewriteImportsInDirectory,
   type DownloadPackageManagerResult,
 } from '../../binding/index.js';
 import { PackageManager, type WorkspaceInfo } from '../types/index.js';
@@ -131,6 +132,8 @@ export function rewriteStandaloneProject(projectPath: string, workspaceInfo: Wor
   rewriteNpmrc(projectPath);
   rewriteLintStagedConfigFile(projectPath);
   rewriteViteConfigFile(projectPath);
+  // rewrite imports in all TypeScript/JavaScript files
+  rewriteAllImports(projectPath);
   // set package manager
   setPackageManager(projectPath, workspaceInfo.downloadPackageManager);
 }
@@ -160,6 +163,8 @@ export function rewriteMonorepo(workspaceInfo: WorkspaceInfo): void {
   rewriteNpmrc(workspaceInfo.rootDir);
   rewriteLintStagedConfigFile(workspaceInfo.rootDir);
   rewriteViteConfigFile(workspaceInfo.rootDir);
+  // rewrite imports in all TypeScript/JavaScript files
+  rewriteAllImports(workspaceInfo.rootDir);
   // set package manager
   setPackageManager(workspaceInfo.rootDir, workspaceInfo.downloadPackageManager);
 }
@@ -623,6 +628,29 @@ function rewriteViteConfigImport(projectPath: string, viteConfigPath: string): v
   }
 }
 
+/**
+ * Rewrite imports in all TypeScript/JavaScript files under a directory
+ * This rewrites vite/vitest imports to @voidzero-dev/vite-plus
+ * @param projectPath - The root directory to search for files
+ */
+function rewriteAllImports(projectPath: string): void {
+  const result = rewriteImportsInDirectory(projectPath);
+
+  if (result.modifiedFiles.length > 0) {
+    prompts.log.success(`✅ Rewrote imports in ${result.modifiedFiles.length} file(s)`);
+    for (const file of result.modifiedFiles) {
+      prompts.log.info(`  ${displayRelative(file)}`);
+    }
+  }
+
+  if (result.errors.length > 0) {
+    prompts.log.warn(`⚠️ ${result.errors.length} file(s) had errors:`);
+    for (const error of result.errors) {
+      prompts.log.error(`  ${displayRelative(error.path)}: ${error.message}`);
+    }
+  }
+}
+
 function setPackageManager(
   projectDir: string,
   downloadPackageManager: DownloadPackageManagerResult,