refactor: simplify check

packages/vitest/src/node/plugins/utils.ts

@@ -1,4 +1,4 @@
-import { searchForWorkspaceRoot, version as viteVersion } from 'vite'
+import { searchForWorkspaceRoot } from 'vite'
 import type { DepOptimizationOptions, ResolvedConfig, UserConfig as ViteConfig } from 'vite'
 import { dirname } from 'pathe'
 import type { DepsOptimizationOptions, InlineConfig } from '../../types'
@@ -8,18 +8,15 @@ import { rootDir } from '../../paths'
 export function resolveOptimizerConfig(_testOptions: DepsOptimizationOptions | undefined, viteOptions: DepOptimizationOptions | undefined, testConfig: InlineConfig) {
   const testOptions = _testOptions || {}
   const newConfig: { cacheDir?: string; optimizeDeps: DepOptimizationOptions } = {} as any
-  const [major, minor, fix] = viteVersion.split('.').map(Number)
-  const allowed = major >= 5 || (major === 4 && minor >= 4) || (major === 4 && minor === 3 && fix >= 2)
-  if (!allowed && testOptions?.enabled === true)
-    console.warn(`Vitest: "deps.optimizer" is only available in Vite >= 4.3.2, current Vite version: ${viteVersion}`)
-  else
-    // disabled by default
-    testOptions.enabled ??= false
-  if (!allowed || testOptions?.enabled !== true) {
+  // disabled by default
+  testOptions.enabled ??= false
+  if (testOptions?.enabled !== true) {
     newConfig.cacheDir = undefined
     newConfig.optimizeDeps = {
-      // experimental in Vite >2.9.2, entries remains to help with older versions
-      disabled: true,
+      // noDiscovery available since vite@4.3.3
+      // https://github.com/vitejs/vite/discussions/13814
+      noDiscovery: true,
+      include: [],
       entries: [],
     }
   }
@@ -44,23 +41,12 @@ export function resolveOptimizerConfig(_testOptions: DepsOptimizationOptions | u
       ...viteOptions,
       ...testOptions,
       noDiscovery: true,
-      disabled: false,
       entries: [],
       exclude,
       include,
     }
   }
 
-  // `optimizeDeps.disabled` is deprecated since v5.1.0-beta.1
-  // https://github.com/vitejs/vite/pull/15184
-  if (major >= 5 && minor >= 1) {
-    if (newConfig.optimizeDeps.disabled) {
-      newConfig.optimizeDeps.noDiscovery = true
-      newConfig.optimizeDeps.include = []
-    }
-    delete newConfig.optimizeDeps.disabled
-  }
-
   return newConfig
 }