Fix #537: don't add index.html to links

lib/output/base.js

@@ -4,6 +4,7 @@ var path = require('path');
 
 var Promise = require('../utils/promise');
 var pathUtil = require('../utils/path');
+var location = require('../utils/location');
 var PluginsManager = require('../plugins');
 var TemplateEngine = require('../template');
 var gitbook = require('../gitbook');
@@ -130,7 +131,9 @@ Output.prototype.finish = function() {
 // Resolve an HTML link
 Output.prototype.onRelativeLink = function(currentPage, href) {
     var to = this.book.getPage(href);
-    if (to) return this.outputPath(to.path);
+
+    // Replace by an .html link
+    if (to) href = this.outputUrl(to.path);
 
     return href;
 };
@@ -189,4 +192,16 @@ Output.prototype.outputPath = function(filename, ext) {
     return output;
 };
 
+// Filename for output
+// /test/index.html -> /test/
+Output.prototype.outputUrl = function(filename, ext) {
+    var href = this.outputPath(filename, ext);
+
+    if (path.basename(href) == 'index.html') {
+        href = path.dirname(href) + '/';
+    }
+
+    return location.normalize(href);
+};
+
 module.exports = Output;

lib/output/website.js

@@ -78,7 +78,7 @@ WebsiteOutput.prototype.prepare = function() {
 
         // Transform a '.md' into a '.html' (README -> index)
         that.env.addFilter('contentURL', function(s) {
-            return that.outputPath(s);
+            return that.onRelativeLink(null, s);
         });
     });
 };