search: squash file_get_contents warning, but more insight is needed. closes #193.

Changelog.md

@@ -43,6 +43,7 @@ This file holds the changelog for Pepperminty Wiki. This is the master list of t
  - Squashed the text `\A` appearing before tags at the bottom of pages for some users ([ref](https://gitter.im/Pepperminty-Wiki/Lobby?at=5f0632068342f4627401f145))
  - Fixed an issue causing uploaded avatars not to render
  - Fixed an obscure bug in the search engine when excluding terms that appear both in a page's title and body
+ - Squashed a warning at the top of search results (more insight is needed though to squash the inconsistencies in the search index that creep in though)
 
 
 ## v0.21.1-hotfix1

modules/feature-search.php

@@ -151,10 +151,15 @@ register_module([
 			
 			$start = microtime(true);
 			foreach($results as &$result) {
+				$filepath = $env->storage_prefix . $result["pagename"] . ".md";
+				if(!file_exists($filepath)) {
+					error_log("[pepperminty wiki/$settings->sitename/search] Search engine returned {$result["pagename"]} as a result (maps to $filepath), but it doesn't exist on disk (try rebuilding the search index).");
+					continue; // Something strange is happening
+				}
 				$result["context"] = search::extract_context(
 					$result["pagename"],
 					$query_parsed,
-					file_get_contents($env->storage_prefix . $result["pagename"] . ".md")
+					file_get_contents()
 				);
 			}
 			$env->perfdata->context_generation_time = round((microtime(true) - $start)*1000, 3);