Merge branch 'develop' of https://github.com/nicolargo/glances into develop

docs/aoa/cpu.rst

@@ -15,25 +15,33 @@ displayed.
 
 CPU stats description:
 
-* user: percent time spent in user space
-> User CPU time is time spent on the processor running your program's code (or code in libraries)
-* system: percent time spent in kernel space
-> System CPU time is the time spent running code in the operating system kernel
-* idle: percent of CPU used by any program
-> Every program or task that runs on a computer system occupies a certain amount of processing time on the CPU. If the CPU has completed all tasks it is idle.
-* nice: percent time occupied by user level processes with a positive nice value
-> The time the CPU has spent running users' processes that have been "niced"
-* irq: percent time spent servicing/handling hardware/software interrupts
-> Time servicing interrupts (hardware + software)
-* iowait: percent time spent in wait (on disk)
-> Time spent by the CPU waiting for a IO operations to complete
-* steal: percent time in involuntary wait by virtual CPU
-> Steal time is the percentage of time a virtual CPU waits for a real CPU while the hypervisor is servicing another virtual processor
-* ctx_sw: number of context switches (voluntary + involuntary) per second
-> A context switch is a procedure that a computer's CPU (central processing unit) follows to change from one task (or process) to another while ensuring that the tasks do not conflict
-* inter: number of interrupts per second
-* sw_inter: number of software interrupts per second. Always set to 0 on Windows and SunOS.
-* syscal: number of system calls per second. Do not displayed on Linux (always 0).
+- **user**: percent time spent in user space. User CPU time is the time
+  spent on the processor running your program's code (or code in
+  libraries).
+- **system**: percent time spent in kernel space. System CPU time is the
+  time spent running code in the Operating System kernel.
+- **idle**: percent of CPU used by any program. Every program or task
+  that runs on a computer system occupies a certain amount of processing
+  time on the CPU. If the CPU has completed all tasks it is idle.
+- **nice** *(\*nix)*: percent time occupied by user level processes with
+  a positive nice value. The time the CPU has spent running users'
+  processes that have been *niced*.
+- **irq** *(Linux, \*BSD)*: percent time spent servicing/handling
+  hardware/software interrupts. Time servicing interrupts (hardware +
+  software).
+- **iowait** *(Linux)*: percent time spent by the CPU waiting for I/O
+  operations to complete.
+- **steal** *(Linux)*: percentage of time a virtual CPU waits for a real
+  CPU while the hypervisor is servicing another virtual processor.
+- **ctx_sw**: number of context switches (voluntary + involuntary) per
+  second. A context switch is a procedure that a computer's CPU (central
+  processing unit) follows to change from one task (or process) to
+  another while ensuring that the tasks do not conflict.
+- **inter**: number of interrupts per second.
+- **sw_inter**: number of software interrupts per second. Always set to
+  0 on Windows and SunOS.
+- **syscal**: number of system calls per second. Do not displayed on
+  Linux (always 0).
 
 To switch to per-CPU stats, just hit the ``1`` key:
 

docs/config.rst

@@ -23,17 +23,8 @@ You can put your own ``glances.conf`` file in the following locations:
 ``Windows``          %APPDATA%\\glances
 ==================== =============================================================
 
-On Windows XP, the ``%APPDATA%`` path is:
-
-::
-
-    C:\Documents and Settings\<User>\Application Data
-
-Since Windows Vista and newer versions:
-
-::
-
-    C:\Users\<User>\AppData\Roaming
+* On Windows XP, ``%APPDATA%`` is: ``C:\Documents and Settings\<USERNAME>\Application Data``.
+* On Windows Vista and later: ``C:\Users\<USERNAME>\AppData\Roaming``.
 
 User-specific options override system-wide options and options given on
 the command line override either.
@@ -107,10 +98,13 @@ line.
 
 By default, the ``glances-USERNAME.log`` file is under the temporary directory:
 
-=========== ======================
+=========== ======
 ``*nix``    /tmp
-``Windows`` %APPDATA%\\Local\\temp
-=========== ======================
+``Windows`` %TEMP%
+=========== ======
+
+* On Windows XP, ``%TEMP%`` is: ``C:\Documents and Settings\<USERNAME>\Local Settings\Temp``.
+* On Windows Vista and later: ``C:\Users\<USERNAME>\AppData\Local\Temp``.
 
 If you want to use another system path or change the log message, you
 can use your own logger configuration. First of all, you have to create

docs/glances.rst

@@ -26,6 +26,11 @@ OPTIONS
 
 .. include:: cmds.rst
 
+CONFIGURATION
+-------------
+
+.. include:: config.rst
+
 EXAMPLES
 --------
 

glances/client.py

@@ -124,8 +124,8 @@ class GlancesClient(object):
                 self.stats.set_plugins(json.loads(self.client.getAllPlugins()))
                 logger.debug("Client version: {} / Server version: {}".format(__version__, client_version))
             else:
-                self.log_and_exit("Client and server not compatible: \
-                                   Client version: {} / Server version: {}".format(__version__, client_version))
+                self.log_and_exit(('Client and server not compatible: '
+                                   'Client version: {} / Server version: {}'.format(__version__, client_version)))
                 return False
 
         return True

glances/config.py

@@ -42,6 +42,7 @@ def user_config_dir():
         path = os.path.expanduser('~/Library/Application Support')
     else:
         path = os.environ.get('XDG_CONFIG_HOME') or os.path.expanduser('~/.config')
+    path = os.path.join(path, 'glances')
 
     return path
 
@@ -51,10 +52,11 @@ def user_cache_dir():
 
     - Linux, *BSD, SunOS: ~/.cache/glances
     - macOS: ~/Library/Caches/glances
-    - Windows: %LOCALAPPDATA%\glances\cache
+    - Windows: {%LOCALAPPDATA%,%APPDATA%}\glances\cache
     """
-    if WINDOWS and os.environ.get('LOCALAPPDATA') is not None:
-        path = os.path.join(os.environ.get('LOCALAPPDATA'), 'glances', 'cache')
+    if WINDOWS:
+        path = os.path.join(os.environ.get('LOCALAPPDATA') or os.environ.get('APPDATA'),
+                            'glances', 'cache')
     elif MACOS:
         path = os.path.expanduser('~/Library/Caches/glances')
     else:
@@ -77,6 +79,7 @@ def system_config_dir():
         path = '/usr/local/etc'
     else:
         path = os.environ.get('APPDATA')
+    path = os.path.join(path, 'glances')
 
     return path
 
@@ -118,10 +121,8 @@ class Config(object):
         if self.config_dir:
             paths.append(self.config_dir)
 
-        if user_config_dir() is not None:
-            paths.append(os.path.join(user_config_dir(), self.config_filename))
-        if system_config_dir() is not None:
-            paths.append(os.path.join(system_config_dir(), self.config_filename))
+        paths.append(os.path.join(user_config_dir(), self.config_filename))
+        paths.append(os.path.join(system_config_dir(), self.config_filename))
 
         return paths
 

glances/main.py

@@ -49,35 +49,34 @@ class GlancesMain(object):
     username = "glances"
     password = ""
 
-    # Exemple of use
-    example_of_use = "\
-Examples of use:\n\
-\n\
-Monitor local machine (standalone mode):\n\
-  $ glances\n\
-\n\
-Monitor local machine with the Web interface (Web UI):\n\
-  $ glances -w\n\
-  Glances web server started on http://0.0.0.0:61208/\n\
-\n\
-Monitor local machine and export stats to a CSV file (standalone mode):\n\
-  $ glances --export-csv /tmp/glances.csv\n\
-\n\
-Monitor local machine and export stats to a InfluxDB server with 5s refresh time (standalone mode):\n\
-  $ glances -t 5 --export-influxdb\n\
-\n\
-Start a Glances server (server mode):\n\
-  $ glances -s\n\
-\n\
-Connect Glances to a Glances server (client mode):\n\
-  $ glances -c <ip_server>\n\
-\n\
-Connect Glances to a Glances server and export stats to a StatsD server (client mode):\n\
-  $ glances -c <ip_server> --export-statsd\n\
-\n\
-Start the client browser (browser mode):\n\
-  $ glances --browser\n\
-    "
+    # Examples of use
+    example_of_use = """
+Examples of use:
+  Monitor local machine (standalone mode):
+    $ glances
+
+  Monitor local machine with the Web interface (Web UI):
+    $ glances -w
+    Glances web server started on http://0.0.0.0:61208/
+
+  Monitor local machine and export stats to a CSV file (standalone mode):
+    $ glances --export-csv /tmp/glances.csv
+
+  Monitor local machine and export stats to a InfluxDB server with 5s refresh time (standalone mode):
+    $ glances -t 5 --export-influxdb
+
+  Start a Glances server (server mode):
+    $ glances -s
+
+  Connect Glances to a Glances server (client mode):
+    $ glances -c <ip_server>
+
+  Connect Glances to a Glances server and export stats to a StatsD server (client mode):
+    $ glances -c <ip_server> --export-statsd
+
+  Start the client browser (browser mode):
+    $ glances --browser
+"""
 
     def __init__(self):
         """Manage the command line arguments."""
@@ -363,30 +362,28 @@ Start the client browser (browser mode):\n\
         self.args = args
 
         # Export is only available in standalone or client mode (issue #614)
-        export_tag = args.export_csv or \
-            args.export_elasticsearch or \
-            args.export_statsd or \
-            args.export_influxdb or \
-            args.export_cassandra or \
-            args.export_opentsdb or \
-            args.export_rabbitmq or \
+        export_tag = (
+            args.export_csv or
+            args.export_elasticsearch or
+            args.export_statsd or
+            args.export_influxdb or
+            args.export_cassandra or
+            args.export_opentsdb or
+            args.export_rabbitmq or
             args.export_couchdb
+        )
         if WINDOWS and export_tag:
             # On Windows, export is possible but only in quiet mode
             # See issue #1038
-            logger.info(
-                "On Windows OS, export disable the Web Interface")
+            logger.info("On Windows OS, export disable the Web interface")
             self.args.quiet = True
             self.args.webserver = False
-        elif not (self.is_standalone() or self.is_client()) \
-                and export_tag:
-            logger.critical(
-                "Export is only available in standalone or client mode")
+        elif not (self.is_standalone() or self.is_client()) and export_tag:
+            logger.critical("Export is only available in standalone or client mode")
             sys.exit(2)
 
         # Filter is only available in standalone mode
-        if args.process_filter is not None \
-           and not self.is_standalone():
+        if args.process_filter is not None and not self.is_standalone():
             logger.critical(
                 "Process filter is only available in standalone mode")
             sys.exit(2)
@@ -394,8 +391,7 @@ Start the client browser (browser mode):\n\
         # Check graph output path
         if args.export_graph and args.path_graph is not None:
             if not os.access(args.path_graph, os.W_OK):
-                logger.critical(
-                    "Graphs output path {} doesn't exist or is not writable".format(args.path_graph))
+                logger.critical("Graphs output path {} doesn't exist or is not writable".format(args.path_graph))
                 sys.exit(2)
             logger.debug(
                 "Graphs output path is set to {}".format(args.path_graph))
@@ -429,30 +425,26 @@ Start the client browser (browser mode):\n\
 
     def is_standalone(self):
         """Return True if Glances is running in standalone mode."""
-        return not self.args.client \
-            and not self.args.browser \
-            and not self.args.server \
-            and not self.args.webserver
+        return (not self.args.client and
+                not self.args.browser and
+                not self.args.server and
+                not self.args.webserver)
 
     def is_client(self):
         """Return True if Glances is running in client mode."""
-        return (self.args.client or self.args.browser) \
-            and not self.args.server
+        return (self.args.client or self.args.browser) and not self.args.server
 
     def is_client_browser(self):
         """Return True if Glances is running in client browser mode."""
-        return self.args.browser \
-            and not self.args.server
+        return self.args.browser and not self.args.server
 
     def is_server(self):
         """Return True if Glances is running in server mode."""
-        return not self.args.client \
-            and self.args.server
+        return not self.args.client and self.args.server
 
     def is_webserver(self):
         """Return True if Glances is running in Web server mode."""
-        return not self.args.client \
-            and self.args.webserver
+        return not self.args.client and self.args.webserver
 
     def get_config(self):
         """Return configuration file object."""

glances/outdated.py

@@ -135,8 +135,8 @@ class Outdated(object):
             logger.debug("Cannot read the version cache file: {}".format(e))
         else:
             logger.debug("Read the version cache file")
-            if cached_data['installed_version'] != self.installed_version() or \
-               datetime.now() - cached_data['refresh_date'] > self.max_refresh_date:
+            if (cached_data['installed_version'] != self.installed_version() or
+                    datetime.now() - cached_data['refresh_date'] > self.max_refresh_date):
                 # Reset the cache if:
                 # - the installed version is different
                 # - the refresh_date is > max_refresh_date

glances/outputs/glances_curses.py

@@ -515,9 +515,11 @@ class _GlancesCurses(object):
         __stat_display = self.__get_stat_display(stats, plugin_max_width)
 
         # Adapt number of processes to the available space
-        max_processes_displayed = self.screen.getmaxyx()[0] - 11 - \
-            self.get_stats_display_height(__stat_display["alert"]) - \
+        max_processes_displayed = (
+            self.screen.getmaxyx()[0] - 11 -
+            self.get_stats_display_height(__stat_display["alert"]) -
             self.get_stats_display_height(__stat_display["docker"])
+        )
         try:
             if self.args.enable_process_extended and not self.args.process_tree:
                 max_processes_displayed -= 4
@@ -618,10 +620,10 @@ class _GlancesCurses(object):
         # Space between column
         self.space_between_column = 0
         self.new_line()
-        l_uptime = self.get_stats_display_width(stat_display["system"]) \
-            + self.space_between_column \
-            + self.get_stats_display_width(stat_display["ip"]) + 3 \
-            + self.get_stats_display_width(stat_display["uptime"])
+        l_uptime = (self.get_stats_display_width(stat_display["system"]) +
+                    self.space_between_column +
+                    self.get_stats_display_width(stat_display["ip"]) + 3 +
+                    self.get_stats_display_width(stat_display["uptime"]))
         self.display_plugin(
             stat_display["system"],
             display_optional=(self.screen.getmaxyx()[1] >= l_uptime))
@@ -722,8 +724,8 @@ class _GlancesCurses(object):
         if not self.args.disable_left_sidebar:
             for s in ['network', 'wifi', 'ports', 'diskio', 'fs', 'irq',
                       'folders', 'raid', 'sensors', 'now']:
-                if (hasattr(self.args, 'enable_' + s) or
-                   hasattr(self.args, 'disable_' + s)) and s in stat_display:
+                if ((hasattr(self.args, 'enable_' + s) or
+                     hasattr(self.args, 'disable_' + s)) and s in stat_display):
                     self.new_line()
                     self.display_plugin(stat_display[s])
 

glances/plugins/glances_cloud.py

@@ -100,9 +100,7 @@ class Plugin(GlancesPlugin):
         # Init the return message
         ret = []
 
-        if not self.stats \
-           or self.stats == {} \
-           or self.is_disable():
+        if not self.stats or self.stats == {} or self.is_disable():
             return ret
 
         # Generate the output

glances/plugins/glances_docker.py

@@ -524,9 +524,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist (and non null) and display plugin enable...
-        if not self.stats \
-           or len(self.stats['containers']) == 0 \
-           or self.is_disable():
+        if not self.stats or len(self.stats['containers']) == 0 or self.is_disable():
             return ret
 
         # Build the string message

glances/plugins/glances_fs.py

@@ -229,8 +229,7 @@ class Plugin(GlancesPlugin):
                 mnt_point = i['mnt_point'][-fsname_max_width + 1:]
             elif len(i['mnt_point']) + len(i['device_name'].split('/')[-1]) <= fsname_max_width - 3:
                 # If possible concatenate mode info... Glances touch inside :)
-                mnt_point = i['mnt_point'] + \
-                    ' (' + i['device_name'].split('/')[-1] + ')'
+                mnt_point = i['mnt_point'] + ' (' + i['device_name'].split('/')[-1] + ')'
             elif len(i['mnt_point']) > fsname_max_width:
                 # Cut mount point name if it is too long
                 mnt_point = '_' + i['mnt_point'][-fsname_max_width + 1:]

glances/plugins/glances_ports.py

@@ -100,9 +100,9 @@ class Plugin(GlancesPlugin):
             return 'CAREFUL'
         elif port['status'] == 0:
             return 'CRITICAL'
-        elif isinstance(port['status'], (float, int)) and \
-                port['rtt_warning'] is not None and \
-                port['status'] > port['rtt_warning']:
+        elif (isinstance(port['status'], (float, int)) and
+              port['rtt_warning'] is not None and
+              port['status'] > port['rtt_warning']):
             return 'WARNING'
 
         return 'OK'