From 3cbf4fe9d131bc4f0d4c8af45ec9c6b083aec99f Mon Sep 17 00:00:00 2001
From: David Baum <baum@cqse.eu>
Date: Sat, 5 Mar 2022 16:43:04 +0100
Subject: [PATCH] add option to exclude paths from search

---
 README.md         |  1 +
 index.js          |  1 +
 src/SearchBox.vue | 10 ++++++++--
 src/utils.js      | 17 +++++++++++++++++
 4 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 32904dc..525ab0f 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,7 @@ module.exports = {
         */
         maxSuggestions: 10,    // how many search suggestions to show on the menu, the default is 10.
         searchPaths: ['path1', 'path2'],    // an array of paths to search in, keep it null to search all docs.
+        searchExcludePaths: ['pathToExclude1', 'pathToExclude1'], // an array of paths to exclude.
         searchHotkeys: ['s'],    // Hot keys to activate the search input, the default is "s" but you can add more.
         searchResultLength: 60,    // the length of the suggestion result text by characters, the default is 60 characters.
         splitHighlightedWords: ' ',  // regex or string to split highlighted words by, keep it null to use flexsearch.split
diff --git a/index.js b/index.js
index c183b97..bed3632 100644
--- a/index.js
+++ b/index.js
@@ -24,6 +24,7 @@ module.exports = (options) => ({
     SEARCH_OPTIONS: options.search_options || defaultSearchOptions,
     SEARCH_MAX_SUGGESTIONS: options.maxSuggestions || 10,
     SEARCH_PATHS: options.searchPaths || null,
+    SEARCH_EXCLUDE_PATHS: options.searchExcludePaths || null,
     SEARCH_HOTKEYS: options.searchHotkeys || "s",
     SEARCH_RESULT_LENGTH:
       Number(options.searchResultLength) || DEFAULT_SEARCH_RESULT_LENGTH,
diff --git a/src/SearchBox.vue b/src/SearchBox.vue
index 5ef68a8..74fac04 100644
--- a/src/SearchBox.vue
+++ b/src/SearchBox.vue
@@ -49,10 +49,12 @@
 import VuepressSearchBox from "@vuepress/plugin-search/SearchBox.vue";
 import Flexsearch from "flexsearch";
 import { highlightText } from "./utils";
+import { isSearchable } from "./utils";
 
 /* global
 SEARCH_MAX_SUGGESTIONS
 SEARCH_PATHS
+SEARCH_EXCLUDE_PATHS
 SEARCH_HOTKEYS
 SEARCH_OPTIONS
 SEARCH_RESULT_LENGTH
@@ -74,7 +76,7 @@ export default {
         return
       }
 
-      const result = this.index
+      const unfilteredResult = this.index
         .search(query, SEARCH_MAX_SUGGESTIONS)
         .map((page) => {
           return {
@@ -84,7 +86,11 @@ export default {
           };
         });
 
-      return result;
+      if(SEARCH_EXCLUDE_PATHS === null) { 
+        return unfilteredResult;
+      } else {
+        return unfilteredResult.filter(page => isSearchable(page, SEARCH_EXCLUDE_PATHS));
+      }
     },
 
     splitBy() {
diff --git a/src/utils.js b/src/utils.js
index 2bdd5f1..de54f89 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -43,3 +43,20 @@ module.exports.highlightText = (fullText, highlightTarget, splitBy) => {
   return result;
 };
 
+/**
+ * Returns whether the given page is searchable, i.e. it's path is not excluded.
+ * 
+ * @param  page
+ * @param  excludePaths Array of excluded paths
+ * @returns {boolean}
+ */
+module.exports.isSearchable = (page, excludePaths) => {
+  if(excludePaths === null) {
+    return true;
+  }
+  return excludePaths.filter(path => {
+    return page.path.match(path)
+  }).length === 0
+}
+
+