优化导航获取方式

Author: qianmoQ

lib/file-processor.js

@@ -26,6 +26,7 @@ class FileProcessor {
         this.pages = pages;
         this.sourcePath = sourcePath;
         this.outputPath = outputPath;
+        this.navigationCache = new Map();
 
         this.templateEngine = new TemplateEngine(config.templatePath);
 
@@ -51,6 +52,15 @@ class FileProcessor {
             false;
     }
 
+    // 获取缓存的导航数据
+    getCachedNavigation(locale) {
+        if (!this.navigationCache.has(locale)) {
+            const navData = transformNavigation(this.config.nav, this.pages, this.config, locale);
+            this.navigationCache.set(locale, navData);
+        }
+        return this.navigationCache.get(locale);
+    }
+
     // 解析元数据中的 EJS 模板
     parseMetadataTemplates(data, context) {
         const processed = {...data};
@@ -288,7 +298,7 @@ class FileProcessor {
                     ...this.config
                 }
             }
-            pageData.siteData.nav = transformNavigation(this.config.nav, this.pages, this.config, locale);
+            pageData.siteData.nav = this.getCachedNavigation(locale);
 
             // 渲染页面
             let html = await this.templateEngine.renderWithLayout('layouts/page', pageData);
@@ -334,7 +344,7 @@ class FileProcessor {
                 ...this.config
             }
         }
-        pageData.siteData.nav = transformNavigation(this.config.nav, this.pages, this.config, locale);
+        pageData.siteData.nav = this.getCachedNavigation(locale);
 
         let html = await this.templateEngine.renderWithLayout('layouts/page', pageData);