fix: update route configs on file add / delete

src/node/config.ts

@@ -3,7 +3,6 @@ import _debug from 'debug'
 import fg from 'fast-glob'
 import fs from 'fs-extra'
 import path from 'path'
-import { compile, match } from 'path-to-regexp'
 import c from 'picocolors'
 import {
   createLogger,
@@ -17,9 +16,10 @@ import { DEFAULT_THEME_PATH } from './alias'
 import type { MarkdownOptions } from './markdown/markdown'
 import {
   dynamicRouteRE,
-  resolveRoutes,
+  resolveDynamicRoutes,
   type ResolvedRouteConfig
 } from './plugins/dynamicRoutesPlugin'
+import { resolveRewrites } from './plugins/rewritesPlugin'
 import {
   APPEARANCE_KEY,
   type Awaitable,
@@ -183,12 +183,16 @@ export interface SiteConfig<ThemeConfig = any>
   cacheDir: string
   tempDir: string
   pages: string[]
-  dynamicRoutes: readonly [ResolvedRouteConfig[], Record<string, string[]>]
+  dynamicRoutes: {
+    routes: ResolvedRouteConfig[]
+    fileToModulesMap: Record<string, string[]>
+  }
   rewrites: {
     map: Record<string, string | undefined>
     inv: Record<string, string | undefined>
   }
   logger: Logger
+  userConfig: UserConfig
 }
 
 const resolve = (root: string, file: string) =>
@@ -242,39 +246,10 @@ export async function resolveConfig(
     ? userThemeDir
     : DEFAULT_THEME_PATH
 
-  // Important: fast-glob doesn't guarantee order of the returned files.
-  // We must sort the pages so the input list to rollup is stable across
-  // builds - otherwise different input order could result in different exports
-  // order in shared chunks which in turns invalidates the hash of every chunk!
-  // JavaScript built-in sort() is mandated to be stable as of ES2019 and
-  // supported in Node 12+, which is required by Vite.
-  const allMarkdownFiles = (
-    await fg(['**.md'], {
-      cwd: srcDir,
-      ignore: ['**/node_modules', ...(userConfig.srcExclude || [])]
-    })
-  ).sort()
-
-  const pages = allMarkdownFiles.filter((p) => !dynamicRouteRE.test(p))
-  const dynamicRouteFiles = allMarkdownFiles.filter((p) =>
-    dynamicRouteRE.test(p)
+  const { pages, dynamicRoutes, rewrites } = await resolvePages(
+    srcDir,
+    userConfig
   )
-  const dynamicRoutes = await resolveRoutes(dynamicRouteFiles)
-  pages.push(...dynamicRoutes[0].map((r) => r.path))
-
-  const rewriteEntries = Object.entries(userConfig.rewrites || {})
-  const rewrites = rewriteEntries.length
-    ? Object.fromEntries(
-        pages
-          .map((src) => {
-            for (const [from, to] of rewriteEntries) {
-              const dest = rewrite(src, from, to)
-              if (dest) return [src, dest]
-            }
-          })
-          .filter((e) => e != null) as [string, string][]
-      )
-    : {}
 
   const config: SiteConfig = {
     root,
@@ -305,10 +280,8 @@ export async function resolveConfig(
     transformHead: userConfig.transformHead,
     transformHtml: userConfig.transformHtml,
     transformPageData: userConfig.transformPageData,
-    rewrites: {
-      map: rewrites,
-      inv: Object.fromEntries(Object.entries(rewrites).map((a) => a.reverse()))
-    }
+    rewrites,
+    userConfig
   }
 
   return config
@@ -444,10 +417,32 @@ function resolveSiteDataHead(userConfig?: UserConfig): HeadConfig[] {
   return head
 }
 
-function rewrite(src: string, from: string, to: string) {
-  const urlMatch = match(from)
-  const res = urlMatch(src)
-  if (!res) return false
-  const toPath = compile(to)
-  return toPath(res.params)
+export async function resolvePages(srcDir: string, userConfig: UserConfig) {
+  // Important: fast-glob doesn't guarantee order of the returned files.
+  // We must sort the pages so the input list to rollup is stable across
+  // builds - otherwise different input order could result in different exports
+  // order in shared chunks which in turns invalidates the hash of every chunk!
+  // JavaScript built-in sort() is mandated to be stable as of ES2019 and
+  // supported in Node 12+, which is required by Vite.
+  const allMarkdownFiles = (
+    await fg(['**.md'], {
+      cwd: srcDir,
+      ignore: ['**/node_modules', ...(userConfig.srcExclude || [])]
+    })
+  ).sort()
+
+  const pages = allMarkdownFiles.filter((p) => !dynamicRouteRE.test(p))
+  const dynamicRouteFiles = allMarkdownFiles.filter((p) =>
+    dynamicRouteRE.test(p)
+  )
+  const dynamicRoutes = await resolveDynamicRoutes(dynamicRouteFiles)
+  pages.push(...dynamicRoutes.routes.map((r) => r.path))
+
+  const rewrites = resolveRewrites(pages, userConfig.rewrites)
+
+  return {
+    pages,
+    dynamicRoutes,
+    rewrites
+  }
 }

src/node/plugin.ts

@@ -15,12 +15,13 @@ import {
   resolveAliases,
   SITE_DATA_REQUEST_PATH
 } from './alias'
-import type { SiteConfig } from './config'
+import { resolvePages, type SiteConfig } from './config'
 import { clearCache, createMarkdownToVueRenderFn } from './markdownToVue'
 import type { PageDataPayload } from './shared'
 import { staticDataPlugin } from './plugins/staticDataPlugin'
 import { webFontsPlugin } from './plugins/webFontsPlugin'
 import { dynamicRoutesPlugin } from './plugins/dynamicRoutesPlugin'
+import { rewritesPlugin } from './plugins/rewritesPlugin'
 
 declare module 'vite' {
   interface UserConfig {
@@ -70,8 +71,7 @@ export async function createVitePressPlugin(
     pages,
     ignoreDeadLinks,
     lastUpdated,
-    cleanUrls,
-    rewrites
+    cleanUrls
   } = siteConfig
 
   let markdownToVue: Awaited<ReturnType<typeof createMarkdownToVueRenderFn>>
@@ -198,15 +198,16 @@ export async function createVitePressPlugin(
         configDeps.forEach((file) => server.watcher.add(file))
       }
 
-      server.middlewares.use((req, res, next) => {
-        if (req.url) {
-          const page = req.url.replace(/[?#].*$/, '').slice(site.base.length)
-          if (rewrites.inv[page]) {
-            req.url = req.url.replace(page, rewrites.inv[page]!)
-          }
+      // update pages, dynamicRoutes and rewrites on md file add / deletion
+      const onFileAddDelete = async (file: string) => {
+        if (file.endsWith('.md')) {
+          Object.assign(
+            siteConfig,
+            await resolvePages(siteConfig.srcDir, siteConfig.userConfig)
+          )
         }
-        next()
-      })
+      }
+      server.watcher.on('add', onFileAddDelete).on('unlink', onFileAddDelete)
 
       // serve our index.html after vite history fallback
       return () => {
@@ -347,6 +348,7 @@ export async function createVitePressPlugin(
 
   return [
     vitePressPlugin,
+    rewritesPlugin(siteConfig),
     vuePlugin,
     webFontsPlugin(siteConfig.useWebFonts),
     ...(userViteConfig?.plugins || []),

src/node/plugins/dynamicRoutesPlugin.ts

@@ -7,7 +7,7 @@ import {
 import fs from 'fs-extra'
 import c from 'picocolors'
 import path from 'path'
-import type { SiteConfig } from '../config'
+import { resolvePages, type SiteConfig } from '../config'
 
 export const dynamicRouteRE = /\[(\w+?)\]/g
 
@@ -41,63 +41,33 @@ export const dynamicRoutesPlugin = async (
   config: SiteConfig
 ): Promise<Plugin> => {
   let server: ViteDevServer
-  let routes = config.dynamicRoutes[0].map(r => r.route)
-  let [resolvedRoutes, routeFileToModulesMap] = config.dynamicRoutes
-
-  // TODO: make this more efficient by only reloading the invalidated route
-  // TODO: invlidate modules for paths that are no longer present
-  async function invlidateRoutes() {
-    ;[resolvedRoutes, routeFileToModulesMap] = await resolveRoutes(routes)
-  }
 
   return {
     name: 'vitepress:dynamic-routes',
 
     configureServer(_server) {
       server = _server
-
-      const onFileAddDelete = (
-        file: string,
-        updateRoutes: (route: string) => void
-      ) => {
-        if (dynamicRouteRE.test(file) && /\.(md|paths\.[jt]s)$/.test(file)) {
-          if (file.endsWith('.md')) {
-            updateRoutes(normalizePath(path.relative(config.root, file)))
-          }
-          invlidateRoutes().then(() => {
-            server.ws.send({ type: 'full-reload' })
-          })
-        }
-      }
-
-      server.watcher
-        .on('add', (file) => {
-          onFileAddDelete(file, (route) => routes.push(route))
-        })
-        .on('unlink', (file) => {
-          onFileAddDelete(file, (route) => {
-            routes = routes.filter((r) => r !== route)
-          })
-        })
     },
 
     resolveId(id) {
       if (!id.endsWith('.md')) return
       const normalizedId = id.startsWith(config.root)
         ? normalizePath(path.relative(config.root, id))
         : id.replace(/^\//, '')
-      const matched = resolvedRoutes.find((r) => r.path === normalizedId)
+      const matched = config.dynamicRoutes.routes.find(
+        (r) => r.path === normalizedId
+      )
       if (matched) {
         return normalizedId
       }
     },
 
     load(id) {
-      const matched = resolvedRoutes.find((r) => r.path === id)
+      const matched = config.dynamicRoutes.routes.find((r) => r.path === id)
       if (matched) {
         const { route, params, content } = matched
         const routeFile = normalizePath(path.resolve(config.root, route))
-        routeFileToModulesMap[routeFile].push(id)
+        config.dynamicRoutes.fileToModulesMap[routeFile].push(id)
 
         let baseContent = fs.readFileSync(routeFile, 'utf-8')
 
@@ -118,11 +88,11 @@ export const dynamicRoutesPlugin = async (
     },
 
     async handleHotUpdate(ctx) {
-      const mods = routeFileToModulesMap[ctx.file]
+      const mods = config.dynamicRoutes.fileToModulesMap[ctx.file]
       if (mods) {
         // path loader module updated, reset loaded routes
         if (/\.paths\.[jt]s$/.test(ctx.file)) {
-          await invlidateRoutes()
+          await resolvePages(config.srcDir, config.userConfig)
         }
         for (const id of mods) {
           ctx.modules.push(server.moduleGraph.getModuleById(id)!)
@@ -132,7 +102,9 @@ export const dynamicRoutesPlugin = async (
   }
 }
 
-export async function resolveRoutes(routes: string[]) {
+export async function resolveDynamicRoutes(
+  routes: string[]
+): Promise<SiteConfig['dynamicRoutes']> {
   const pendingResolveRoutes: Promise<ResolvedRouteConfig[]>[] = []
   const routeFileToModulesMap: Record<string, string[]> = {}
 
@@ -189,8 +161,8 @@ export async function resolveRoutes(routes: string[]) {
     }
   }
 
-  return [
-    (await Promise.all(pendingResolveRoutes)).flat(),
-    routeFileToModulesMap
-  ] as const
+  return {
+    routes: (await Promise.all(pendingResolveRoutes)).flat(),
+    fileToModulesMap: routeFileToModulesMap
+  }
 }

src/node/plugins/rewritesPlugin.ts

@@ -0,0 +1,54 @@
+import type { Plugin } from 'vite'
+import { compile, match } from 'path-to-regexp'
+import type { SiteConfig, UserConfig } from '../config'
+
+export function resolveRewrites(
+  pages: string[],
+  userRewrites: UserConfig['rewrites']
+) {
+  const rewriteEntries = Object.entries(userRewrites || {})
+  const rewrites = rewriteEntries.length
+    ? Object.fromEntries(
+        pages
+          .map((src) => {
+            for (const [from, to] of rewriteEntries) {
+              const dest = rewrite(src, from, to)
+              if (dest) return [src, dest]
+            }
+          })
+          .filter((e) => e != null) as [string, string][]
+      )
+    : {}
+  return {
+    map: rewrites,
+    inv: Object.fromEntries(Object.entries(rewrites).map((a) => a.reverse()))
+  }
+}
+
+function rewrite(src: string, from: string, to: string) {
+  const urlMatch = match(from)
+  const res = urlMatch(src)
+  if (!res) return false
+  const toPath = compile(to)
+  return toPath(res.params)
+}
+
+export const rewritesPlugin = (config: SiteConfig): Plugin => {
+  return {
+    name: 'vitepress:rewrites',
+    configureServer(server) {
+      // dev rewrite
+      server.middlewares.use((req, _res, next) => {
+        if (req.url) {
+          const page = req.url
+            .replace(/[?#].*$/, '')
+            .slice(config.site.base.length)
+          if (config.rewrites.inv[page]) {
+            req.url = req.url.replace(page, config.rewrites.inv[page]!)
+          }
+        }
+        next()
+      })
+    }
+  }
+}