From 2e0f89e275db43b794051e81871e1bdd7dbe639f Mon Sep 17 00:00:00 2001
From: Vladimir Sheremet <sleuths.slews0s@icloud.com>
Date: Thu, 18 Jan 2024 19:15:22 +0100
Subject: [PATCH] feat: add filename/dirname to import.meta

---
 .../ssr/runtime/__tests__/fixtures/basic.js   |  2 +-
 .../runtime/__tests__/server-runtime.spec.ts  | 33 ++++++++++++++++---
 packages/vite/src/node/ssr/runtime/runtime.ts |  6 ++++
 packages/vite/src/node/ssr/runtime/utils.ts   |  4 +++
 4 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/packages/vite/src/node/ssr/runtime/__tests__/fixtures/basic.js b/packages/vite/src/node/ssr/runtime/__tests__/fixtures/basic.js
index 5e7e14e6795a0b..777fa9d3ecf08f 100644
--- a/packages/vite/src/node/ssr/runtime/__tests__/fixtures/basic.js
+++ b/packages/vite/src/node/ssr/runtime/__tests__/fixtures/basic.js
@@ -1,3 +1,3 @@
 export const name = 'basic'
 
-export const url = import.meta.url
+export const meta = import.meta
diff --git a/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts b/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts
index c797ca7b39f83d..34d84d8bcee1cd 100644
--- a/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts
+++ b/packages/vite/src/node/ssr/runtime/__tests__/server-runtime.spec.ts
@@ -1,5 +1,7 @@
 import { existsSync, readdirSync } from 'node:fs'
+import { posix, win32 } from 'node:path'
 import { describe, expect } from 'vitest'
+import { isWindows } from '../utils'
 import { createViteRuntimeTester } from './utils'
 
 describe('vite-runtime initialization', async () => {
@@ -107,11 +109,34 @@ describe('vite-runtime initialization', async () => {
     expect(mod.existsSync).toBe(existsSync)
   })
 
-  it('correctly resolves module url', async ({ runtime }) => {
-    const mod = await runtime.executeUrl('/fixtures/basic')
+  it('correctly resolves module url', async ({ runtime, server }) => {
+    const { meta } =
+      await runtime.executeUrl<typeof import('./fixtures/basic')>(
+        '/fixtures/basic',
+      )
     // so it isn't transformed by Vitest
     const _URL = URL
-    const basicUrl = new _URL('./fixtures/basic.js', import.meta.url)
-    expect(mod.url).toBe(basicUrl.toString())
+    const basicUrl = new _URL('./fixtures/basic.js', import.meta.url).toString()
+    expect(meta.url).toBe(basicUrl)
+
+    const filename = meta.filename!
+    const dirname = meta.dirname!
+
+    if (isWindows) {
+      const cwd = process.cwd()
+      const drive = `${cwd[0].toUpperCase()}:\\`
+      const root = server.config.root.replace(/\\/g, '/')
+
+      expect(filename.startsWith(drive)).toBe(true)
+      expect(dirname.startsWith(drive)).toBe(true)
+
+      expect(filename).toBe(win32.join(root, '.\\fixtures\\basic.js'))
+      expect(dirname).toBe(win32.join(root, '.\\fixtures'))
+    } else {
+      const root = server.config.root
+
+      expect(posix.join(root, './fixtures/basic.js')).toBe(filename)
+      expect(posix.join(root, './fixtures')).toBe(dirname)
+    }
   })
 })
diff --git a/packages/vite/src/node/ssr/runtime/runtime.ts b/packages/vite/src/node/ssr/runtime/runtime.ts
index 40f67517b2b19f..7f8e6b13ec1713 100644
--- a/packages/vite/src/node/ssr/runtime/runtime.ts
+++ b/packages/vite/src/node/ssr/runtime/runtime.ts
@@ -16,9 +16,11 @@ import {
   cleanUrl,
   createImportMetaEnvProxy,
   isPrimitive,
+  isWindows,
   posixDirname,
   posixPathToFileHref,
   posixResolve,
+  toWindowsPath,
   unwrapId,
 } from './utils'
 import {
@@ -244,7 +246,11 @@ export class ViteRuntime {
     const modulePath = cleanUrl(file || moduleId)
     // disambiguate the `<UNIT>:/` on windows: see nodejs/node#31710
     const href = posixPathToFileHref(modulePath)
+    const filename = modulePath
+    const dirname = posixDirname(modulePath)
     const meta: ViteRuntimeImportMeta = {
+      filename: isWindows ? toWindowsPath(filename) : filename,
+      dirname: isWindows ? toWindowsPath(dirname) : dirname,
       url: href,
       env: this.envProxy,
       resolve(id, parent) {
diff --git a/packages/vite/src/node/ssr/runtime/utils.ts b/packages/vite/src/node/ssr/runtime/utils.ts
index 87d599d4d581ce..1cb3f87b5bbaa8 100644
--- a/packages/vite/src/node/ssr/runtime/utils.ts
+++ b/packages/vite/src/node/ssr/runtime/utils.ts
@@ -139,6 +139,10 @@ export function posixDirname(filepath: string): string {
   return normalizedPath.substring(0, normalizedPath.lastIndexOf('/')) || '/'
 }
 
+export function toWindowsPath(path: string): string {
+  return path.replace(/\//g, '\\')
+}
+
 // inlined from pathe to support environments without access to node:path
 function cwd(): string {
   if (typeof process !== 'undefined' && typeof process.cwd === 'function') {