Sparkline not working in server/client mode #1881 - For the moment disable sparkline in client mode

docs/aoa/quicklook.rst

@@ -17,8 +17,9 @@ If the per CPU mode is on (by clicking the ``1`` key):
 In the Curses/terminal interface, it is also possible to switch from bar to
 sparkline using 'S' hot key or --sparkline command line option (need the
 sparklines Python lib on your system). Please be aware that sparklines use
-the Glances history and will not be available if the history is disabled from
-the command line.
+the Glances history and will not be available if the history is disabled
+from the command line. For the moment sparkline is not available in
+client/server mode.
 
 .. image:: ../_static/sparkline.png
 

glances/plugins/glances_docker.py

@@ -575,7 +575,10 @@ class Plugin(GlancesPlugin):
         ret.append(self.curse_new_line())
         # Get the maximum containers name
         # Max size is configurable. See feature request #1723.
-        name_max_width = min(self.config.get_int_value('docker', 'max_name_size', default=20),
+        name_max_width = min(self.config.get_int_value('docker',
+                                                       'max_name_size',
+                                                       default=20)
+                             if self.config is not None else 20,
                              len(max(self.stats['containers'],
                                  key=lambda x: len(x['name']))['name']))
         msg = ' {:{width}}'.format('Name', width=name_max_width)

glances/plugins/glances_plugin.py

@@ -164,7 +164,9 @@ class GlancesPlugin(object):
             return json.dumps(d, ensure_ascii=False)
 
     def history_enable(self):
-        return self.args is not None and not self.args.disable_history and self.get_items_history_list() is not None
+        return self.args is not None and \
+               not self.args.disable_history and \
+               self.get_items_history_list() is not None
 
     def init_stats_history(self):
         """Init the stats history (dict of GlancesAttribute)."""

glances/plugins/glances_quicklook.py

@@ -116,7 +116,7 @@ class Plugin(GlancesPlugin):
 
         # Define the data: Bar (default behavor) or Sparkline
         sparkline_tag = False
-        if self.args.sparkline and self.history_enable():
+        if self.args.sparkline and self.history_enable() and not self.args.client:
             data = Sparkline(max_width)
             sparkline_tag = data.available
         if not sparkline_tag: