feat: custom manifest file name (#6667)

docs/config/index.md

@@ -772,19 +772,19 @@ export default defineConfig({
 
 ### build.manifest
 
-- **Type:** `boolean`
+- **Type:** `boolean | string`
 - **Default:** `false`
 - **Related:** [Backend Integration](/guide/backend-integration)
 
-  When set to `true`, the build will also generate a `manifest.json` file that contains a mapping of non-hashed asset filenames to their hashed versions, which can then be used by a server framework to render the correct asset links.
+  When set to `true`, the build will also generate a `manifest.json` file that contains a mapping of non-hashed asset filenames to their hashed versions, which can then be used by a server framework to render the correct asset links. When the value is a string, it will be used as the manifest file name.
 
 ### build.ssrManifest
 
-- **Type:** `boolean`
+- **Type:** `boolean | string`
 - **Default:** `false`
 - **Related:** [Server-Side Rendering](/guide/ssr)
 
-  When set to `true`, the build will also generate a SSR manifest for determining style links and asset preload directives in production.
+  When set to `true`, the build will also generate a SSR manifest for determining style links and asset preload directives in production. When the value is a string, it will be used as the manifest file name.
 
 ### build.ssr
 

packages/vite/src/node/build.ts

@@ -179,7 +179,7 @@ export interface BuildOptions {
    * ```
    * @default false
    */
-  manifest?: boolean
+  manifest?: boolean | string
   /**
    * Build in library mode. The value should be the global name of the lib in
    * UMD mode. This will produce esm + cjs + umd bundle formats with default
@@ -195,7 +195,7 @@ export interface BuildOptions {
    * Generate SSR manifest for determining style links and asset preload
    * directives in production.
    */
-  ssrManifest?: boolean
+  ssrManifest?: boolean | string
   /**
    * Set to false to disable reporting compressed chunk sizes.
    * Can slightly improve build speed.

packages/vite/src/node/cli.ts

@@ -149,8 +149,8 @@ cli
     `[boolean | "terser" | "esbuild"] enable/disable minification, ` +
       `or specify minifier to use (default: esbuild)`
   )
-  .option('--manifest', `[boolean] emit build manifest json`)
-  .option('--ssrManifest', `[boolean] emit ssr manifest json`)
+  .option('--manifest [name]', `[boolean | string] emit build manifest json`)
+  .option('--ssrManifest [name]', `[boolean | string] emit ssr manifest json`)
   .option(
     '--emptyOutDir',
     `[boolean] force empty outDir when it's outside of root`

packages/vite/src/node/plugins/manifest.ts

@@ -113,7 +113,10 @@ export function manifestPlugin(config: ResolvedConfig): Plugin {
       const outputLength = Array.isArray(output) ? output.length : 1
       if (outputCount >= outputLength) {
         this.emitFile({
-          fileName: `manifest.json`,
+          fileName:
+            typeof config.build.manifest === 'string'
+              ? config.build.manifest
+              : 'manifest.json',
           type: 'asset',
           source: JSON.stringify(manifest, null, 2)
         })

packages/vite/src/node/ssr/ssrManifestPlugin.ts

@@ -96,7 +96,10 @@ export function ssrManifestPlugin(config: ResolvedConfig): Plugin {
       }
 
       this.emitFile({
-        fileName: 'ssr-manifest.json',
+        fileName:
+          typeof config.build.ssrManifest === 'string'
+            ? config.build.ssrManifest
+            : 'ssr-manifest.json',
         type: 'asset',
         source: JSON.stringify(ssrManifest, null, 2)
       })