fix: extend page data on wrong pages (fix #32)(#53)

Author: billyyyyy3320

Diff for: src/node/handleOptions.ts

@@ -99,10 +99,20 @@ export function handleOptions(
      * 1.3 Set layout for pages that match current directory classifier.
      */
     pageEnhancers.push({
-      when: ({ regularPath }) =>
-        Boolean(regularPath) &&
-        regularPath !== indexPath &&
-        regularPath.startsWith(`/${dirname}/`),
+      /**
+       * Exclude index pages
+       * Exclude pagination pages
+       * Pick pages matched directory name
+       */
+      filter({ regularPath }) {
+        const regex = new RegExp(`^/${dirname}/page/\\d+/`);
+        return (
+          Boolean(regularPath) &&
+          regularPath !== indexPath &&
+          !regex.test(regularPath) &&
+          regularPath.startsWith(`/${dirname}/`)
+        );
+      },
       frontmatter: {
         layout: ctx.getLayout(itemLayout, 'Post'),
         permalink: itemPermalink,

Diff for: src/node/index.ts

@@ -90,10 +90,10 @@ module.exports = (options: BlogPluginOptions, ctx: VuePressContext) => {
      * 1. Execute `pageEnhancers` generated in handleOptions
      */
     extendPageData(pageCtx: VuePressPage) {
-      const { frontmatter: rawFrontmatter } = pageCtx;
+      pageEnhancers.forEach(({ filter, data = {}, frontmatter = {} }) => {
+        const { frontmatter: rawFrontmatter } = pageCtx;
 
-      pageEnhancers.forEach(({ when, data = {}, frontmatter = {} }) => {
-        if (when(pageCtx)) {
+        if (filter(pageCtx)) {
           Object.keys(frontmatter).forEach(key => {
             /**
              * Respect the original frontmatter in markdown

Diff for: src/node/interface/PageEnhancer.ts

@@ -4,7 +4,7 @@ export interface PageEnhancer {
   /**
    * Conditions for enhancer execution
    */
-  when($page: VuePressPage): boolean;
+  filter($page: VuePressPage): boolean;
 
   /**
    * frontmatter injected to matched pages