Show only active Disk I/O (and network interface) nicolargo#2929

Author: nicolargo

conf/glances.conf

@@ -220,6 +220,8 @@ hide=docker.*,lo
 hide_no_up=True
 # Automatically hide interface with no IP address (default is False)
 hide_no_ip=True
+# Set hide_zero to True to automatically hide interface with no traffic
+hide_zero=False
 # It is possible to overwrite the bitrate thresholds per interface
 # WLAN 0 Default limits (in bits per second aka bps) for interface bitrate
 #wlan0_rx_careful=4000000
@@ -280,6 +282,8 @@ disable=False
 # Define the list of hidden disks (comma-separated regexp)
 #hide=sda2,sda5,loop.*
 hide=loop.*,/dev/loop.*
+# Set hide_zero to True to automatically hide disk with no read/write
+hide_zero=False
 # Define the list of disks to be show (comma-separated)
 #show=sda.*
 # Alias for sda1 and sdb1

docker-compose/glances.conf

@@ -36,7 +36,7 @@ max_processes_display=25
 # Set URL prefix for the WebUI and the API
 # Example: url_prefix=/glances/ => http://localhost/glances/
 # Note: The final / is mandatory
-# Default is no prefix
+# Default is no prefix (/)
 #url_prefix=/glances/
 # Set root path for WebUI statics files
 # Why ? On Debian system, WebUI statics files are not provided.
@@ -220,6 +220,8 @@ tx_critical=90
 hide_no_up=True
 # Automatically hide interface with no IP address (default is False)
 hide_no_ip=True
+# Set hide_zero to True to automatically hide interface with no traffic
+hide_zero=False
 # It is possible to overwrite the bitrate thresholds per interface
 # WLAN 0 Default limits (in bits per second aka bps) for interface bitrate
 #wlan0_rx_careful=4000000
@@ -280,6 +282,8 @@ disable=False
 # Define the list of hidden disks (comma-separated regexp)
 #hide=sda2,sda5,loop.*
 hide=loop.*,/dev/loop.*
+# Set hide_zero to True to automatically hide disk with no read/write
+hide_zero=False
 # Define the list of disks to be show (comma-separated)
 #show=sda.*
 # Alias for sda1 and sdb1

docs/aoa/diskio.rst

@@ -42,4 +42,12 @@ Filtering is based on regular expression. Please be sure that your regular
 expression works as expected. You can use an online tool like `regex101`_ in
 order to test your regular expression.
 
+You also can automatically hide disk with no read or write using the
+``hide_zero`` configuration key.
+
+.. code-block:: ini
+
+    [diskio]
+    hide_zero=True
+
 .. _regex101: https://regex101.com/

docs/aoa/network.rst

@@ -47,6 +47,8 @@ virtual docker interface (docker0, docker1, ...):
     hide_no_up=True
     # Automatically hide interface with no IP address (default is False)
     hide_no_ip=True
+    # Set hide_zero to True to automatically hide interface with no traffic
+    hide_zero=False
     # WLAN 0 alias
     alias=wlan0:Wireless IF
     # It is possible to overwrite the bitrate thresholds per interface
@@ -64,4 +66,12 @@ Filtering is based on regular expression. Please be sure that your regular
 expression works as expected. You can use an online tool like `regex101`_ in
 order to test your regular expression.
 
+You also can automatically hide intercae with no traffic using the
+``hide_zero`` configuration key.
+
+.. code-block:: ini
+
+    [diskio]
+    hide_zero=True
+
 .. _regex101: https://regex101.com/

glances/plugins/diskio/__init__.py

@@ -75,7 +75,7 @@ def __init__(self, args=None, config=None):
             self.hide_zero = config.get_bool_value(self.plugin_name, 'hide_zero', default=False)
         else:
             self.hide_zero = False
-        self.hide_zero_fields = ['read_bytes', 'write_bytes']
+        self.hide_zero_fields = ['read_bytes_rate_per_sec', 'write_bytes_rate_per_sec']
 
         # Force a first update because we need two updates to have the first stat
         self.update()
@@ -141,9 +141,6 @@ def update_views(self):
         # Call the father's method
         super().update_views()
 
-        # Check if the stats should be hidden
-        self.update_views_hidden()
-
         # Add specifics information
         # Alert
         for i in self.get_raw():

glances/plugins/network/__init__.py

@@ -86,7 +86,7 @@ def __init__(self, args=None, config=None):
             self.hide_zero = config.get_bool_value(self.plugin_name, 'hide_zero', default=False)
         else:
             self.hide_zero = False
-        self.hide_zero_fields = ['bytes_recv', 'bytes_sent']
+        self.hide_zero_fields = ['bytes_recv_rate_per_sec', 'bytes_sent_rate_per_sec']
 
         #  Add support for automatically hiding network interfaces that are down
         # or that don't have any IP addresses #2799
@@ -196,9 +196,6 @@ def update_views(self):
         # Call the father's method
         super().update_views()
 
-        # Check if the stats should be hidden
-        self.update_views_hidden()
-
         # Add specifics information
         # Alert
         for i in self.get_raw():

glances/plugins/plugin/model.py

@@ -430,46 +430,6 @@ def get_item_info(self, item, key, default=None):
             return default
         return self.fields_description[item].get(key, default)
 
-    def update_views_hidden(self):
-        """Update the hidden views
-
-        If the self.hide_zero is set then update the hidden field of the view
-        It will check if all fields values are already be different from 0
-        In this case, the hidden field is set to True
-
-        Note: This function should be called by plugin (in the update_views method)
-
-        Example (for network plugin):
-        __Init__
-            self.hide_zero_fields = ['rx', 'tx']
-        Update views
-            ...
-            self.update_views_hidden()
-        """
-        if not self.hide_zero:
-            return False
-        if isinstance(self.get_raw(), list) and self.get_raw() is not None and self.get_key() is not None:
-            # Stats are stored in a list of dict (ex: NETWORK, FS...)
-            for i in self.get_raw():
-                if any(i[f] for f in self.hide_zero_fields):
-                    for f in self.hide_zero_fields:
-                        self.views[i[self.get_key()]][f]['_zero'] = self.views[i[self.get_key()]][f]['hidden']
-                for f in self.hide_zero_fields:
-                    self.views[i[self.get_key()]][f]['hidden'] = self.views[i[self.get_key()]][f]['_zero'] and i[f] == 0
-        elif isinstance(self.get_raw(), dict) and self.get_raw() is not None:
-            #
-            # Warning: This code has never been tested because
-            # no plugin with dict instance use the hidden function...
-            #
-            # Stats are stored in a dict (ex: CPU, LOAD...)
-            for key in listkeys(self.get_raw()):
-                if any(self.get_raw()[f] for f in self.hide_zero_fields):
-                    for f in self.hide_zero_fields:
-                        self.views[f]['_zero'] = self.views[f]['hidden']
-                for f in self.hide_zero_fields:
-                    self.views[f]['hidden'] = self.views['_zero'] and self.views[f] == 0
-        return True
-
     def update_views(self):
         """Update the stats views.
 
@@ -480,43 +440,56 @@ def update_views(self):
                 'optional': False,        >>> Is the stat optional
                 'additional': False,      >>> Is the stat provide additional information
                 'splittable': False,      >>> Is the stat can be cut (like process lon name)
-                'hidden': False,          >>> Is the stats should be hidden in the UI
-                '_zero': True}            >>> For internal purpose only
+                'hidden': False}          >>> Is the stats should be hidden in the UI
         """
         ret = {}
 
         if isinstance(self.get_raw(), list) and self.get_raw() is not None and self.get_key() is not None:
             # Stats are stored in a list of dict (ex: DISKIO, NETWORK, FS...)
             for i in self.get_raw():
-                ret[i[self.get_key()]] = {}
-                for key in listkeys(i):
+                key = i[self.get_key()]
+                ret[key] = {}
+                for field in listkeys(i):
                     value = {
                         'decoration': 'DEFAULT',
                         'optional': False,
                         'additional': False,
                         'splittable': False,
-                        'hidden': False,
-                        '_zero': (
-                            self.views[i[self.get_key()]][key]['_zero']
-                            if i[self.get_key()] in self.views
-                            and key in self.views[i[self.get_key()]]
-                            and 'zero' in self.views[i[self.get_key()]][key]
-                            else True
-                        ),
                     }
-                    ret[i[self.get_key()]][key] = value
+                    # Manage the hidden feature
+                    # Allow to automatically hide fields when values is never different than 0
+                    # Refactoring done for #2929
+                    if not self.hide_zero:
+                        value['hidden'] = False
+                    elif key in self.views and field in self.views[key] and 'hidden' in self.views[key][field]:
+                        value['hidden'] = self.views[key][field]['hidden']
+                        if field in self.hide_zero_fields and i[field] != 0:
+                            value['hidden'] = False
+                    else:
+                        value['hidden'] = field in self.hide_zero_fields
+                    ret[key][field] = value
         elif isinstance(self.get_raw(), dict) and self.get_raw() is not None:
             # Stats are stored in a dict (ex: CPU, LOAD...)
-            for key in listkeys(self.get_raw()):
+            for field in listkeys(self.get_raw()):
                 value = {
                     'decoration': 'DEFAULT',
                     'optional': False,
                     'additional': False,
                     'splittable': False,
                     'hidden': False,
-                    '_zero': self.views[key]['_zero'] if key in self.views and '_zero' in self.views[key] else True,
                 }
-                ret[key] = value
+                # Manage the hidden feature
+                # Allow to automatically hide fields when values is never different than 0
+                # Refactoring done for #2929
+                if not self.hide_zero:
+                    value['hidden'] = False
+                elif field in self.views and 'hidden' in self.views[field]:
+                    value['hidden'] = self.views[field]['hidden']
+                    if field in self.hide_zero_fields and self.get_raw()[field] != 0:
+                        value['hidden'] = False
+                else:
+                    value['hidden'] = field in self.hide_zero_fields
+                ret[field] = value
 
         self.views = ret
 
@@ -544,7 +517,7 @@ def get_views(self, item=None, key=None, option=None):
         else:
             item_views = self.views[item]
 
-        if key is None:
+        if key is None or key not in item_views:
             return item_views
         if option is None:
             return item_views[key]