Add a disable HDD temperature option on the command line (issue #515)

NEWS

@@ -9,6 +9,7 @@ Enhancements and news features:
 
     * Grab FAN speed in the Glances sensors plugin (issue #501)
     * Allow logical mounts points in the FS plugin (issue #448)
+    * Add a --disable-hddtemp to disable HDD temperature module at startup (issue #515)
 
 Bugs corrected:
 

docs/glances-doc.rst

@@ -143,6 +143,7 @@ Command-Line Options
   --disable-fs          disable filesystem module
   --disable-network     disable network module
   --disable-sensors     disable sensors module
+  --disable-hddtemp     disable HDDTemp module
   --disable-left-sidebar
                         disable left sidebar
   --disable-process     disable process module

glances/core/glances_main.py

@@ -110,6 +110,8 @@ Start the client browser (browser mode):\n\
                             dest='disable_fs', help=_('disable filesystem module'))
         parser.add_argument('--disable-sensors', action='store_true', default=False,
                             dest='disable_sensors', help=_('disable sensors module'))
+        parser.add_argument('--disable-hddtemp', action='store_true', default=False,
+                            dest='disable_hddtemp', help=_('disable HD Temperature module'))
         parser.add_argument('--disable-raid', action='store_true', default=False,
                             dest='disable_raid', help=_('disable RAID module'))
         parser.add_argument('--disable-docker', action='store_true', default=False,
@@ -264,6 +266,11 @@ Start the client browser (browser mode):\n\
                 sys.exit(2)
             logger.debug("History output path is set to {0}".format(args.path_history))
 
+        # Disable HDDTemp if sensors are disabled
+        if args.disable_sensors:
+            args.disable_hddtemp = True
+            logger.debug("Sensors and HDDTemp are disabled")
+
         return args
 
     def __hash_password(self, plain_password):

glances/plugins/glances_hddtemp.py

@@ -25,6 +25,7 @@ import socket
 
 # Import Glances libs
 from glances.plugins.glances_plugin import GlancesPlugin
+from glances.core.glances_logging import logger
 
 
 class Plugin(GlancesPlugin):
@@ -39,7 +40,7 @@ class Plugin(GlancesPlugin):
         GlancesPlugin.__init__(self, args=args)
 
         # Init the sensor class
-        self.glancesgrabhddtemp = GlancesGrabHDDTemp()
+        self.glancesgrabhddtemp = GlancesGrabHDDTemp(args=args)
 
         # We do not want to display the stat in a dedicated area
         # The HDD temp is displayed within the sensors plugin
@@ -73,8 +74,9 @@ class GlancesGrabHDDTemp(object):
 
     """Get hddtemp stats using a socket connection."""
 
-    def __init__(self, host='127.0.0.1', port=7634):
+    def __init__(self, host='127.0.0.1', port=7634, args=None):
         """Init hddtemp stats."""
+        self.args = args
         self.host = host
         self.port = port
         self.cache = ""
@@ -89,6 +91,10 @@ class GlancesGrabHDDTemp(object):
         # Reset the list
         self.reset()
 
+        # Only update if --disable-hddtemp is not set
+        if self.args.disable_hddtemp:
+            return
+
         # Fetch the data
         data = self.fetch()
 
@@ -125,7 +131,10 @@ class GlancesGrabHDDTemp(object):
             sck.connect((self.host, self.port))
             data = sck.recv(4096)
             sck.close()
-        except socket.error:
+        except socket.error as e:
+            logger.warning("Can not connect to an HDDtemp server ({0}:{1} => {2})".format(self.host, self.port, e))
+            logger.debug("Disable the HDDtemp module. Use the --disable-hddtemp to hide the previous message.")
+            self.args.disable_hddtemp = True
             data = ""
 
         return data

man/glances.1

@@ -49,6 +49,10 @@ disable network module
 .B \-\-disable-sensors
 disable sensors module
 .TP
+.B \-\-disable-hddtemp     
+disable HDDTemp module
+.TP
+.TP
 .B \-\-disable-left-sidebar
 disable network, disk IO, FS and sensors modules
 .TP
@@ -210,9 +214,31 @@ Show/hide processes list (for low CPU consumption)
 Switch between global CPU and per-CPU stats
 .SH EXAMPLES
 .TP
-Refresh information every 5 seconds:
-.B glances
-\-t 5
+Monitor local machine (standalone mode):
+.B $ glances
+.PP
+Monitor local machine with the Web interface (Web UI):
+.B $ glances -w
+.PP
+Glances web server started on http://0.0.0.0:61208/
+.PP
+Monitor local machine and export stats to a CSV file (standalone mode):
+.B $ glances --export-csv
+.PP
+Monitor local machine and export stats to a InfluxDB server with 5s refresh time (standalone mode):
+.B $ glances -t 5 --export-influxdb
+.PP
+Start a Glances server (server mode):
+.B $ glances -s
+.PP
+Connect Glances to a Glances server (client mode):
+.B $ glances -c <ip_server>
+.PP
+Connect Glances to a Glances server and export stats to a StatsD server (client mode):
+.B $ glances -c <ip_server> --export-statsd
+.PP
+Start the client browser (browser mode):
+.B $ glances --browser
 .PP
 .SH EXIT STATUS
 Glances returns a zero exit status if it succeeds to print/grab information.