[library-web] add fallback from xz to bz2 as webapps python doesn't support xz

[Frederic Peters <fpeters src gnome org>]

commit dd080a35c23c157ee43971516bfc147a00aa78e3
Author: FrÃdÃric PÃters <fpeters 0d be>
Date:   Thu Aug 4 21:19:31 2011 +0200

    add fallback from xz to bz2 as webapps python doesn't support xz

 src/lgo.py |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/lgo.py b/src/lgo.py
index 8f02d13..cba7992 100755
--- a/src/lgo.py
+++ b/src/lgo.py
@@ -366,6 +366,10 @@ class Lgo(App):
                     href.startswith('http://ftp.gnome.org/')):
                 continue
             filename = self.download(href)
+            # FIXME: there's no support for .xz on the webapps vm used for
+            # library-web, fallback to the .bz2 archive.
+            if filename.endswith('.xz'):
+                filename = os.path.splitext(filename)[0] + '.bz2'
             if not filename:
                 continue
             logging.info('extracting module %s (from %s moduleset)' % (