fix: share component path resolution utility

packages/nuxt/src/components/scan.ts

@@ -8,6 +8,8 @@ import { hyphenate } from '@vue/shared'
 import { withTrailingSlash } from 'ufo'
 import type { Component, ComponentsDir } from 'nuxt/schema'
 
+import { resolveComponentName } from '../core/utils'
+
 /**
  * Scan the components inside different components folders
  * and return a unique list of components
@@ -157,33 +159,6 @@ export async function scanComponents (dirs: ComponentsDir[], srcDir: string): Pr
   return components
 }
 
-export function resolveComponentName (fileName: string, prefixParts: string[]) {
-  /**
-   * Array of fileName parts splitted by case, / or -
-   * @example third-component -> ['third', 'component']
-   * @example AwesomeComponent -> ['Awesome', 'Component']
-   */
-  const fileNameParts = splitByCase(fileName)
-  const fileNamePartsContent = fileNameParts.join('/').toLowerCase()
-  const componentNameParts: string[] = [...prefixParts]
-  let index = prefixParts.length - 1
-  const matchedSuffix: string[] = []
-  while (index >= 0) {
-    matchedSuffix.unshift(...splitByCase(prefixParts[index] || '').map(p => p.toLowerCase()))
-    const matchedSuffixContent = matchedSuffix.join('/')
-    if ((fileNamePartsContent === matchedSuffixContent || fileNamePartsContent.startsWith(matchedSuffixContent + '/')) ||
-      // e.g Item/Item/Item.vue -> Item
-      (prefixParts[index].toLowerCase() === fileNamePartsContent &&
-        prefixParts[index + 1] &&
-        prefixParts[index] === prefixParts[index + 1])) {
-      componentNameParts.length = index
-    }
-    index--
-  }
-
-  return pascalCase(componentNameParts) + pascalCase(fileNameParts)
-}
-
 function warnAboutDuplicateComponent (componentName: string, filePath: string, duplicatePath: string) {
   logger.warn(`Two component files resolving to the same name \`${componentName}\`:\n` +
     `\n - ${filePath}` +

packages/nuxt/src/core/utils/names.ts

@@ -1,14 +1,43 @@
-import { basename, extname, normalize } from 'pathe'
-import { kebabCase } from 'scule'
+import { basename, dirname, extname, normalize, relative } from 'pathe'
+import { kebabCase, pascalCase, splitByCase } from 'scule'
 import { withTrailingSlash } from 'ufo'
 
 export function getNameFromPath (path: string, relativeTo?: string) {
   const relativePath = relativeTo
     ? normalize(path).replace(withTrailingSlash(normalize(relativeTo)), '')
     : basename(path)
-  return kebabCase(relativePath.replace(/\/index\.\w+$/i, '').replace(/[\\/]+/g, '-').replace(extname(relativePath), '')).replace(/["']/g, '')
+  const prefixParts = splitByCase(dirname(relativePath))
+  const fileName = basename(relativePath, extname(relativePath))
+  return kebabCase(resolveComponentName(fileName.toLowerCase() === 'index' ? '' : fileName, prefixParts)).replace(/["']/g, '')
 }
 
 export function hasSuffix (path: string, suffix: string) {
   return basename(path).replace(extname(path), '').endsWith(suffix)
 }
+
+export function resolveComponentName (fileName: string, prefixParts: string[]) {
+  /**
+   * Array of fileName parts splitted by case, / or -
+   * @example third-component -> ['third', 'component']
+   * @example AwesomeComponent -> ['Awesome', 'Component']
+   */
+  const fileNameParts = splitByCase(fileName)
+  const fileNamePartsContent = fileNameParts.join('/').toLowerCase()
+  const componentNameParts: string[] = [...prefixParts]
+  let index = prefixParts.length - 1
+  const matchedSuffix: string[] = []
+  while (index >= 0) {
+    matchedSuffix.unshift(...splitByCase(prefixParts[index] || '').map(p => p.toLowerCase()))
+    const matchedSuffixContent = matchedSuffix.join('/')
+    if ((fileNamePartsContent === matchedSuffixContent || fileNamePartsContent.startsWith(matchedSuffixContent + '/')) ||
+      // e.g Item/Item/Item.vue -> Item
+      (prefixParts[index].toLowerCase() === fileNamePartsContent &&
+        prefixParts[index + 1] &&
+        prefixParts[index] === prefixParts[index + 1])) {
+      componentNameParts.length = index
+    }
+    index--
+  }
+
+  return pascalCase(componentNameParts) + pascalCase(fileNameParts)
+}

packages/nuxt/test/app.test.ts

@@ -186,6 +186,7 @@ describe('resolveApp', () => {
       'layouts/some/layout.vue',
       'layouts/SomeOther.vue',
       'layouts/SomeOther/Thing/Index.vue',
+      'layouts/thing/thing/thing.vue',
       'layouts/some.vue',
       'layouts/SomeOther/layout.ts'
     ])
@@ -215,6 +216,10 @@ describe('resolveApp', () => {
           "file": "<rootDir>/layouts/SomeOther/Thing/Index.vue",
           "name": "some-other-thing",
         },
+        "thing": {
+          "file": "<rootDir>/layouts/thing/thing/thing.vue",
+          "name": "thing",
+        },
       }
     `)
   })

packages/nuxt/test/scan-components.test.ts

@@ -2,7 +2,8 @@ import { resolve } from 'node:path'
 import { describe, expect, it, vi } from 'vitest'
 import type { ComponentsDir } from 'nuxt/schema'
 
-import { resolveComponentName, scanComponents } from '../src/components/scan'
+import { scanComponents } from '../src/components/scan'
+import { resolveComponentName } from '../src/core/utils'
 
 const fixtureDir = resolve(__dirname, 'fixture')
 const rFixture = (...p: string[]) => resolve(fixtureDir, ...p)