fix(search): prevent lunr call stack size exceeded for huge file

vogloblinsky · vogloblinsky · commit f495cd8ab1d2 · 2017-12-12T21:57:29.000+01:00
fix #410 #378
diff --git a/src/app/engines/search.engine.ts b/src/app/engines/search.engine.ts
@@ -5,6 +5,7 @@ import { logger } from '../../logger';
 import { Configuration } from '../configuration';
 import { ConfigurationInterface } from '../interfaces/configuration.interface';
 import { FileEngine } from './file.engine';
+import { MAX_SIZE_FILE_SEARCH_INDEX } from '../../utils/defaults';
 
 const lunr: any = require('lunr');
 const cheerio: any = require('cheerio');
@@ -47,7 +48,8 @@ export class SearchEngine {
             body: text
         };
 
-        if (!this.documentsStore.hasOwnProperty(doc.url)) {
+        if (!this.documentsStore.hasOwnProperty(doc.url)
+            && doc.body.length < MAX_SIZE_FILE_SEARCH_INDEX) {
             this.documentsStore[doc.url] = doc;
             this.getSearchIndex().add(doc);
         }
diff --git a/src/utils/defaults.ts b/src/utils/defaults.ts
@@ -24,3 +24,10 @@ export const COMPODOC_DEFAULTS = {
         INTERNAL: 'internal'
     }
 };
+
+
+/**
+ * Max length for the string of a file during Lunr search engine indexing.
+ * Prevent stack size exceeded
+ */
+export const MAX_SIZE_FILE_SEARCH_INDEX = 15000;
diff --git a/test/src/cli/cli-generation-big-app.spec.ts b/test/src/cli/cli-generation-big-app.spec.ts
@@ -118,6 +118,11 @@ describe('CLI simple generation - big app', () => {
         expect(isIndexExists).to.be.true;
     });
 
+    it('should have excluded big file for search index json', () => {
+        const searchIndexFile = read(`documentation/js/search/search_index.js`);
+        expect(searchIndexFile).to.not.contain('photo64_1');
+    });
+
     it('should have generated extends information for todo class', () => {
         const todoModelFile = read(`documentation/classes/Todo.html`);
         expect(todoModelFile).to.contain('Extends');
diff --git a/test/src/todomvc-ng2/src/app/shared/services/list-image.service.ts b/test/src/todomvc-ng2/src/app/shared/services/list-image.service.ts
