fix(cache): cache config value (#324)

Author: lishaobos

README.md

@@ -242,6 +242,11 @@ AutoImport({
   // Set `false` to disable.
   dts: './auto-imports.d.ts',
 
+  // Cache the result of resolving, across multiple vite builds.
+  // A custom path is supported.
+  // When set to `true`, the cache will be stored in `node_modules/.cache/unplugin-auto-import.json`.
+  cache: false,
+
   // Auto import inside Vue template
   // see https://github.com/unjs/unimport/pull/15 and https://github.com/unjs/unimport/pull/72
   vueTemplate: false,

src/core/ctx.ts

@@ -1,4 +1,4 @@
-import { dirname, isAbsolute, posix, relative, resolve } from 'path'
+import { dirname, isAbsolute, posix, relative, resolve, sep } from 'path'
 import { promises as fs } from 'fs'
 import { slash, throttle, toArray } from '@antfu/utils'
 import { createFilter } from '@rollup/pluginutils'
@@ -30,7 +30,7 @@ export function createContext(options: Options = {}, root = process.cwd()) {
 
   const cachePath = isCache === false
     ? false
-    : resolve(root, typeof isCache === 'string' ? 'string' : 'node_modules/.cache/unplugin-auto-import.json')
+    : resolve(root, typeof isCache === 'string' ? isCache : 'node_modules/.cache/unplugin-auto-import.json')
 
   const unimport = createUnimport({
     imports: [],
@@ -159,7 +159,8 @@ ${dts}`.trim()}\n`
       const cacheData = await getCacheData(cachePath)
       await Promise.allSettled(Object.keys(cacheData).map(async (filePath) => {
         try {
-          await fs.access(posix.resolve(root, filePath))
+          const normalizeRoot = root.replaceAll(sep, posix.sep)
+          await fs.access(posix.join(normalizeRoot, filePath))
         }
         catch {
           Reflect.deleteProperty(cacheData, filePath)
@@ -184,7 +185,7 @@ ${dts}`.trim()}\n`
       const cacheData = await getCacheData(cachePath)
 
       if (id && importList) {
-        const filePath = posix.normalize(relative(root, id))
+        const filePath = posix.normalize(posix.relative(root, id))
         importList = importList.filter(i => (i.name ?? i.as) && i.name !== 'default')
         if (importList.length)
           cacheData[filePath] = importList

src/core/unplugin.ts

@@ -18,6 +18,7 @@ export default createUnplugin<Options>((options) => {
         ctx.scanDirs(),
         ctx.updateCacheImports(),
       ])
+      await ctx.writeConfigFiles()
     },
     async buildEnd() {
       await ctx.writeConfigFiles()