Allow pure xml file format in trac.env_index_template (site.html)

[dawuid@…]

In current stable version (0.12.2), 'site.html' (actually trac.env_index_template) can be in 2 formats:

• cs (ClearSilver): template is a file that ends with '.cs'
• xhtml (Genshi): anyother file

This propose of enhancement ask to allow use pure xml files in trac.env_index_template (as well as the other formats). In current trunk ClearSilver format has been eliminated, and all templates are rendered with Genshi in xhtml format. Genshi can easy render other formats.

The propose include an easy patch to allow to use pure xml files by checking file extension (similar to 0.12.2 code with .cs).

Index: trunk/trac/web/main.py
===================================================================
--- a/trunk/trac/web/main.py
+++ b/trunk/trac/web/main.py
@@ -655,14 +655,9 @@
                                 default_encoding='utf-8')
         tmpl = loader.load(template)
         stream = tmpl.generate(**data)
-        use_xml = template.endswith('.xml')
-        if use_xml:
-            output = stream.render('xml')
-            req.send(output, 'text/xml')
-		else:
-            output = stream.render('xhtml', doctype=DocType.XHTML_STRICT,
-                                  encoding='utf-8')
-            req.send(output, 'text/html')
+        output = stream.render('xhtml', doctype=DocType.XHTML_STRICT,
+                               encoding='utf-8')
+        req.send(output, 'text/html')
 
     except RequestDone:
         pass