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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""
Help plugin.
Just a stupid plugin to display the help screen.
"""
import sys
from glances.compat import iteritems
from glances import __version__, psutil_version
from glances.plugins.glances_plugin import GlancesPlugin
from itertools import chain
class Plugin(GlancesPlugin):
"""Glances help plugin."""
def __init__(self, args=None, config=None):
"""Init the plugin."""
super(Plugin, self).__init__(args=args, config=config)
# Set the config instance
self.config = config
# We want to display the stat in the curse interface
self.display_curse = True
# init data dictionary, to preserve insertion order
if sys.version_info < (3, 6):
from collections import OrderedDict
self.view_data = OrderedDict()
else:
self.view_data = {}
self.generate_view_data()
def reset(self):
"""No stats. It is just a plugin to display the help."""
def update(self):
"""No stats. It is just a plugin to display the help."""
def generate_view_data(self):
"""Generate the views."""
self.view_data['version'] = '{} {}'.format('Glances', __version__)
self.view_data['psutil_version'] = ' with psutil {}'.format(psutil_version)
try:
self.view_data['configuration_file'] = 'Configuration file: {}'.format(self.config.loaded_config_file)
except AttributeError:
pass
msg_col = ' {0:1} {1:34}'
msg_header = '{0:39}'
self.view_data.update(
[
# First column
#
('header_sort', msg_header.format('SORT PROCESSES:')),
('sort_auto', msg_col.format('a', 'Automatically')),
('sort_cpu', msg_col.format('c', 'CPU%')),
('sort_io_rate', msg_col.format('i', 'I/O rate')),
('sort_mem', msg_col.format('m', 'MEM%')),
('sort_process_name', msg_col.format('p', 'Process name')),
('sort_cpu_times', msg_col.format('t', 'TIME')),
('sort_user', msg_col.format('u', 'USER')),
('header_show_hide', msg_header.format('SHOW/HIDE SECTION:')),
('show_hide_application_monitoring', msg_col.format('A', 'Application monitoring')),
('show_hide_diskio', msg_col.format('d', 'Disk I/O')),
('show_hide_docker', msg_col.format('D', 'Docker')),
('show_hide_top_extended_stats', msg_col.format('e', 'Top extended stats')),
('show_hide_filesystem', msg_col.format('f', 'Filesystem')),
('show_hide_gpu', msg_col.format('G', 'GPU')),
('show_hide_ip', msg_col.format('I', 'IP')),
('show_hide_tcp_connection', msg_col.format('K', 'TCP')),
('show_hide_alert', msg_col.format('l', 'Alert logs')),
('show_hide_network', msg_col.format('n', 'Network')),
('show_hide_current_time', msg_col.format('N', 'Time')),
('show_hide_irq', msg_col.format('Q', 'IRQ')),
('show_hide_raid_plugin', msg_col.format('R', 'RAID')),
('show_hide_sensors', msg_col.format('s', 'Sensors')),
('show_hide_wifi_module', msg_col.format('W', 'Wifi')),
('show_hide_processes', msg_col.format('z', 'Processes')),
('show_hide_left_sidebar', msg_col.format('2', 'Left sidebar')),
# Second column
#
('show_hide_quick_look', msg_col.format('3', 'Quick Look')),
('show_hide_cpu_mem_swap', msg_col.format('4', 'CPU, MEM, and SWAP')),
('show_hide_all', msg_col.format('5', 'ALL')),
('header_toggle', msg_header.format('TOGGLE DATA TYPE:')),
('toggle_bits_bytes', msg_col.format('b', 'Network I/O, bits/bytes')),
('toggle_count_rate', msg_col.format('B', 'Disk I/O, count/rate')),
('toggle_used_free', msg_col.format('F', 'Filesystem space, used/free')),
('toggle_bar_sparkline', msg_col.format('S', 'Quick Look, bar/sparkline')),
('toggle_separate_combined', msg_col.format('T', 'Network I/O, separate/combined')),
('toggle_live_cumulative', msg_col.format('U', 'Network I/O, live/cumulative')),
('toggle_linux_percentage', msg_col.format('0', 'Load, Linux/percentage')),
('toggle_cpu_individual_combined', msg_col.format('1', 'CPU, individual/combined')),
('toggle_gpu_individual_combined', msg_col.format('6', 'GPU, individual/combined')),
('toggle_short_full', msg_col.format('/', 'Process names, short/full')),
('header_miscellaneous', msg_header.format('MISCELLANEOUS:')),
('misc_erase_process_filter', msg_col.format('E', 'Erase process filter')),
('misc_generate_history_graphs', msg_col.format('g', 'Generate history graphs')),
('misc_help', msg_col.format('h', 'HELP')),
('misc_accumulate_processes_by_program', msg_col.format('j', 'Display threads or programs')),
('misc_increase_nice_process', msg_col.format('+', 'Increase nice process')),
('misc_decrease_nice_process', msg_col.format('-', 'Decrease nice process (need admin rights)')),
('misc_kill_process', msg_col.format('k', 'Kill process')),
('misc_reset_processes_summary_min_max', msg_col.format('M', 'Reset processes summary min/max')),
('misc_quit', msg_col.format('q', 'QUIT (or Esc or Ctrl-C)')),
('misc_reset_history', msg_col.format('r', 'Reset history')),
('misc_delete_warning_alerts', msg_col.format('w', 'Delete warning alerts')),
('misc_delete_warning_and_critical_alerts', msg_col.format('x', 'Delete warning & critical alerts')),
('misc_theme_white', msg_col.format('9', 'Optimize colors for white background')),
('misc_edit_process_filter_pattern', ' ENTER: Edit process filter pattern'),
]
)
def get_view_data(self, args=None):
"""Return the view."""
return self.view_data
def msg_curse(self, args=None, max_width=None):
"""Return the list to display in the curse interface."""
# Init the return message
ret = []
# Build the header message
ret.append(self.curse_add_line(self.view_data['version'], 'TITLE'))
ret.append(self.curse_add_line(self.view_data['psutil_version']))
ret.append(self.curse_new_line())
# Build the configuration file path
if 'configuration_file' in self.view_data:
ret.append(self.curse_add_line(self.view_data['configuration_file']))
ret.append(self.curse_new_line())
ret.append(self.curse_new_line())
# key-shortcuts
#
# Collect all values after the 1st key-msg
# in a list of curse-lines.
#
shortcuts = []
collecting = False
for k, v in iteritems(self.view_data):
if collecting:
pass
elif k == 'header_sort':
collecting = True
else:
continue
shortcuts.append(self.curse_add_line(v))
# Divide shortcuts into 2 columns
# and if number of schortcuts is even,
# make the 1st column taller (len+1).
#
nlines = (len(shortcuts) + 1) // 2
ret.extend(
msg
for triplet in zip(
iter(shortcuts[:nlines]),
chain(shortcuts[nlines:], iter(lambda: self.curse_add_line(''), None)),
iter(self.curse_new_line, None),
)
for msg in triplet
)
ret.append(self.curse_new_line())
ret.append(self.curse_add_line('For an exhaustive list of key bindings:'))
ret.append(self.curse_new_line())
ret.append(self.curse_add_line('https://glances.readthedocs.io/en/latest/cmds.html#interactive-commands'))
# Return the message with decoration
return ret