fix(tree): fs path for prefixed source

Author: larbish

src/module/src/runtime/utils/collection.ts

@@ -72,20 +72,21 @@ export function getCollectionSource(id: string, collection: CollectionInfo) {
   return matchedSource
 }
 
-export function getFsPath(id: string, source: CollectionInfo['source'][0]) {
+export function generateFsPathFromId(id: string, source: CollectionInfo['source'][0]) {
   const [_, ...rest] = id.split(/[/:]/)
   const path = rest.join('/')
 
   const { fixed } = parseSourceBase(source)
 
-  return join(fixed, path)
+  const pathWithoutFixed = path.substring(fixed.length)
+  return join(fixed, pathWithoutFixed)
 }
 
 export function getCollectionInfo(id: string, collections: Record<string, CollectionInfo>) {
   const collection = getCollection(id.split(/[/:]/)[0]!, collections)
   const source = getCollectionSource(id, collection)
 
-  const fsPath = getFsPath(id, source!)
+  const fsPath = generateFsPathFromId(id, source!)
 
   return {
     collection,

src/module/test/utils/collection.test.ts

@@ -1,5 +1,5 @@
 import { describe, it, expect } from 'vitest'
-import { getCollectionByFilePath, generateIdFromFsPath } from '../../src/runtime/utils/collection'
+import { getCollectionByFilePath, generateIdFromFsPath, generateFsPathFromId } from '../../src/runtime/utils/collection'
 import type { CollectionInfo, ResolvedCollectionSource } from '@nuxt/content'
 import { collections } from '../mocks/collection'
 
@@ -87,3 +87,40 @@ describe('generateIdFromFsPath', () => {
   //   expect(result).toBe('multi-source/first/content/test.md')
   // })
 })
+
+describe('generateFsPathFromId', () => {
+  it('One file included', () => {
+    const id = 'landing/index.md'
+    const source = {
+      prefix: '/',
+      include: 'index.md',
+    } as ResolvedCollectionSource
+    const result = generateFsPathFromId(id, source)
+    expect(result).toBe('index.md')
+  })
+
+  it('Global pattern included', () => {
+    const id = 'docs/1.getting-started/2.introduction.md'
+    const source = {
+      prefix: '/',
+      include: '**',
+      exclude: ['index.md'],
+    } as ResolvedCollectionSource
+    const result = generateFsPathFromId(id, source)
+    expect(result).toBe('1.getting-started/2.introduction.md')
+  })
+
+  it('Custom pattern with prefix', () => {
+    const id = 'docs_en/en/1.getting-started/2.introduction.md'
+    const source = {
+      prefix: '/en',
+      include: 'en/**/*',
+      exclude: [
+        'en/index.md',
+      ],
+    } as ResolvedCollectionSource
+
+    const result = generateFsPathFromId(id, source)
+    expect(result).toBe('en/1.getting-started/2.introduction.md')
+  })
+})