Merge lp:~dobey/ubuntuone-installer/proper-series into lp:ubuntuone-installer

[dobey]

Check that we're on Ubuntu, and get series info from /etc/lsb-release

[Roberto Alsina (ralsina)]

+1 with an asterisk on the print.

review: Approve

=== modified file 'ubuntuone/installer/gui.py'
--- ubuntuone/installer/gui.py	2011-08-04 22:06:31 +0000
+++ ubuntuone/installer/gui.py	2011-08-15 19:42:16 +0000
@@ -32,6 +32,10 @@
     inline_callbacks = old_callbacks
 
 
+class UnsupportedDistribution(BaseException):
+    """Exception for when on an unsupported distribution."""
+
+
 class Window(Gtk.Window):
     """The main dialog to use."""
 
@@ -174,10 +178,30 @@
 
     def __get_series(self):
         """Get the series we're running on."""
-        return 'natty'
+        on_ubuntu = False
+        series = None
+
+        def get_value(keypair):
+            return keypair.split('=')[1].strip()
+
+        try:
+            with open('/etc/lsb-release', 'r') as f:
+                for line in f.readlines():
+                    if line.startswith('DISTRIB_ID'):
+                        on_ubuntu = get_value(line) == u'Ubuntu'
+                    if line.startswith('DISTRIB_CODENAME'):
+                        series = get_value(line)
+            if not on_ubuntu or series is None:
+                raise UnsupportedDistribution(
+                    'This distribution is not supported by Ubuntu One.')
+        except (OSError, IOError, UnsupportedDistribution), error:
+            self.__got_error(error)
+
+        return series
 
     def __got_error(self, error):
         """Got an error trying to set up Ubuntu One."""
+        print error
         Gtk.main_quit()
 
     @inline_callbacks