/usr/lib/python3/dist-packages/glances/outputs/glances_curses.py is in glances 2.11.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2017 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Curses interface class."""
import re
import sys
from glances.compat import u, itervalues
from glances.globals import MACOS, WINDOWS
from glances.logger import logger
from glances.logs import glances_logs
from glances.processes import glances_processes
from glances.timer import Timer
# Import curses library for "normal" operating system
if not WINDOWS:
try:
import curses
import curses.panel
from curses.textpad import Textbox
except ImportError:
logger.critical("Curses module not found. Glances cannot start in standalone mode.")
sys.exit(1)
class _GlancesCurses(object):
"""This class manages the curses display (and key pressed).
Note: It is a private class, use GlancesCursesClient or GlancesCursesBrowser.
"""
_hotkeys = {
'0': {'switch': 'disable_irix'},
'1': {'switch': 'percpu'},
'2': {'switch': 'disable_left_sidebar'},
'3': {'switch': 'disable_quicklook'},
'6': {'switch': 'meangpu'},
'/': {'switch': 'process_short_name'},
'A': {'switch': 'disable_amps'},
'b': {'switch': 'byte'},
'B': {'switch': 'diskio_iops'},
'C': {'switch': 'disable_cloud'},
'D': {'switch': 'disable_docker'},
'd': {'switch': 'disable_diskio'},
'F': {'switch': 'fs_free_space'},
'G': {'switch': 'disable_gpu'},
'h': {'switch': 'help_tag'},
'I': {'switch': 'disable_ip'},
'l': {'switch': 'disable_alert'},
'M': {'switch': 'reset_minmax_tag'},
'n': {'switch': 'disable_network'},
'N': {'switch': 'disable_now'},
'P': {'switch': 'disable_ports'},
'Q': {'switch': 'enable_irq'},
'R': {'switch': 'disable_raid'},
's': {'switch': 'disable_sensors'},
'T': {'switch': 'network_sum'},
'U': {'switch': 'network_cumul'},
'W': {'switch': 'disable_wifi'},
# Processes sort hotkeys
'a': {'auto_sort': True, 'sort_key': 'cpu_percent'},
'c': {'auto_sort': False, 'sort_key': 'cpu_percent'},
'i': {'auto_sort': False, 'sort_key': 'io_counters'},
'm': {'auto_sort': False, 'sort_key': 'memory_percent'},
'p': {'auto_sort': False, 'sort_key': 'name'},
't': {'auto_sort': False, 'sort_key': 'cpu_times'},
'u': {'auto_sort': False, 'sort_key': 'username'},
}
_sort_loop = ['cpu_percent', 'memory_percent', 'username', 'cpu_times', 'io_counters', 'name']
def __init__(self, config=None, args=None):
# Init
self.config = config
self.args = args
# Init windows positions
self.term_w = 80
self.term_h = 24
# Space between stats
self.space_between_column = 3
self.space_between_line = 2
# Init the curses screen
self.screen = curses.initscr()
if not self.screen:
logger.critical("Cannot init the curses library.\n")
sys.exit(1)
# Load the 'outputs' section of the configuration file
# - Init the theme (default is black)
self.theme = {'name': 'black'}
# Load configuration file
self.load_config(config)
# Init cursor
self._init_cursor()
# Init the colors
self._init_colors()
# Init main window
self.term_window = self.screen.subwin(0, 0)
# Init refresh time
self.__refresh_time = args.time
# Init edit filter tag
self.edit_filter = False
# Init the process min/max reset
self.args.reset_minmax_tag = False
# Catch key pressed with non blocking mode
self.term_window.keypad(1)
self.term_window.nodelay(1)
self.pressedkey = -1
# History tag
self._init_history()
def load_config(self, config):
"""Load the outputs section of the configuration file."""
# Load the theme
if config is not None and config.has_section('outputs'):
logger.debug('Read the outputs section in the configuration file')
self.theme['name'] = config.get_value('outputs', 'curse_theme', default='black')
logger.debug('Theme for the curse interface: {}'.format(self.theme['name']))
def is_theme(self, name):
"""Return True if the theme *name* should be used."""
return getattr(self.args, 'theme_' + name) or self.theme['name'] == name
def _init_history(self):
"""Init the history option."""
self.reset_history_tag = False
self.graph_tag = False
if self.args.export_graph:
logger.info('Export graphs function enabled with output path %s' %
self.args.path_graph)
from glances.exports.graph import GlancesGraph
self.glances_graph = GlancesGraph(self.args.path_graph)
if not self.glances_graph.graph_enabled():
self.args.export_graph = False
logger.error('Export graphs disabled')
def _init_cursor(self):
"""Init cursors."""
if hasattr(curses, 'noecho'):
curses.noecho()
if hasattr(curses, 'cbreak'):
curses.cbreak()
self.set_cursor(0)
def _init_colors(self):
"""Init the Curses color layout."""
# Set curses options
if hasattr(curses, 'start_color'):
curses.start_color()
if hasattr(curses, 'use_default_colors'):
curses.use_default_colors()
# Init colors
if self.args.disable_bold:
A_BOLD = 0
self.args.disable_bg = True
else:
A_BOLD = curses.A_BOLD
self.title_color = A_BOLD
self.title_underline_color = A_BOLD | curses.A_UNDERLINE
self.help_color = A_BOLD
if curses.has_colors():
# The screen is compatible with a colored design
if self.is_theme('white'):
# White theme: black ==> white
curses.init_pair(1, curses.COLOR_BLACK, -1)
else:
curses.init_pair(1, curses.COLOR_WHITE, -1)
if self.args.disable_bg:
curses.init_pair(2, curses.COLOR_RED, -1)
curses.init_pair(3, curses.COLOR_GREEN, -1)
curses.init_pair(4, curses.COLOR_BLUE, -1)
curses.init_pair(5, curses.COLOR_MAGENTA, -1)
else:
curses.init_pair(2, curses.COLOR_WHITE, curses.COLOR_RED)
curses.init_pair(3, curses.COLOR_WHITE, curses.COLOR_GREEN)
curses.init_pair(4, curses.COLOR_WHITE, curses.COLOR_BLUE)
curses.init_pair(5, curses.COLOR_WHITE, curses.COLOR_MAGENTA)
curses.init_pair(6, curses.COLOR_RED, -1)
curses.init_pair(7, curses.COLOR_GREEN, -1)
curses.init_pair(8, curses.COLOR_BLUE, -1)
# Colors text styles
if curses.COLOR_PAIRS > 8:
try:
curses.init_pair(9, curses.COLOR_MAGENTA, -1)
except Exception:
if self.is_theme('white'):
curses.init_pair(9, curses.COLOR_BLACK, -1)
else:
curses.init_pair(9, curses.COLOR_WHITE, -1)
try:
curses.init_pair(10, curses.COLOR_CYAN, -1)
except Exception:
if self.is_theme('white'):
curses.init_pair(10, curses.COLOR_BLACK, -1)
else:
curses.init_pair(10, curses.COLOR_WHITE, -1)
self.ifWARNING_color2 = curses.color_pair(9) | A_BOLD
self.ifCRITICAL_color2 = curses.color_pair(6) | A_BOLD
self.filter_color = curses.color_pair(10) | A_BOLD
self.no_color = curses.color_pair(1)
self.default_color = curses.color_pair(3) | A_BOLD
self.nice_color = curses.color_pair(9)
self.cpu_time_color = curses.color_pair(9)
self.ifCAREFUL_color = curses.color_pair(4) | A_BOLD
self.ifWARNING_color = curses.color_pair(5) | A_BOLD
self.ifCRITICAL_color = curses.color_pair(2) | A_BOLD
self.default_color2 = curses.color_pair(7)
self.ifCAREFUL_color2 = curses.color_pair(8) | A_BOLD
else:
# The screen is NOT compatible with a colored design
# switch to B&W text styles
self.no_color = curses.A_NORMAL
self.default_color = curses.A_NORMAL
self.nice_color = A_BOLD
self.cpu_time_color = A_BOLD
self.ifCAREFUL_color = curses.A_UNDERLINE
self.ifWARNING_color = A_BOLD
self.ifCRITICAL_color = curses.A_REVERSE
self.default_color2 = curses.A_NORMAL
self.ifCAREFUL_color2 = curses.A_UNDERLINE
self.ifWARNING_color2 = A_BOLD
self.ifCRITICAL_color2 = curses.A_REVERSE
self.filter_color = A_BOLD
# Define the colors list (hash table) for stats
self.colors_list = {
'DEFAULT': self.no_color,
'UNDERLINE': curses.A_UNDERLINE,
'BOLD': A_BOLD,
'SORT': A_BOLD,
'OK': self.default_color2,
'MAX': self.default_color2 | curses.A_BOLD,
'FILTER': self.filter_color,
'TITLE': self.title_color,
'PROCESS': self.default_color2,
'STATUS': self.default_color2,
'NICE': self.nice_color,
'CPU_TIME': self.cpu_time_color,
'CAREFUL': self.ifCAREFUL_color2,
'WARNING': self.ifWARNING_color2,
'CRITICAL': self.ifCRITICAL_color2,
'OK_LOG': self.default_color,
'CAREFUL_LOG': self.ifCAREFUL_color,
'WARNING_LOG': self.ifWARNING_color,
'CRITICAL_LOG': self.ifCRITICAL_color,
'PASSWORD': curses.A_PROTECT
}
def set_cursor(self, value):
"""Configure the curse cursor apparence.
0: invisible
1: visible
2: very visible
"""
if hasattr(curses, 'curs_set'):
try:
curses.curs_set(value)
except Exception:
pass
def get_key(self, window):
# Catch ESC key AND numlock key (issue #163)
keycode = [0, 0]
keycode[0] = window.getch()
keycode[1] = window.getch()
if keycode != [-1, -1]:
logger.debug("Keypressed (code: %s)" % keycode)
if keycode[0] == 27 and keycode[1] != -1:
# Do not escape on specials keys
return -1
else:
return keycode[0]
def __catch_key(self, return_to_browser=False):
# Catch the pressed key
self.pressedkey = self.get_key(self.term_window)
# Actions (available in the global hotkey dict)...
for hotkey in self._hotkeys:
if self.pressedkey == ord(hotkey) and 'switch' in self._hotkeys[hotkey]:
setattr(self.args,
self._hotkeys[hotkey]['switch'],
not getattr(self.args,
self._hotkeys[hotkey]['switch']))
if self.pressedkey == ord(hotkey) and 'auto_sort' in self._hotkeys[hotkey]:
setattr(glances_processes,
'auto_sort',
self._hotkeys[hotkey]['auto_sort'])
if self.pressedkey == ord(hotkey) and 'sort_key' in self._hotkeys[hotkey]:
setattr(glances_processes,
'sort_key',
self._hotkeys[hotkey]['sort_key'])
# Other actions...
if self.pressedkey == ord('\x1b') or self.pressedkey == ord('q'):
# 'ESC'|'q' > Quit
if return_to_browser:
logger.info("Stop Glances client and return to the browser")
else:
self.end()
logger.info("Stop Glances")
sys.exit(0)
elif self.pressedkey == ord('\n'):
# 'ENTER' > Edit the process filter
self.edit_filter = not self.edit_filter
elif self.pressedkey == ord('4'):
self.args.full_quicklook = not self.args.full_quicklook
if self.args.full_quicklook:
self.enable_fullquicklook()
else:
self.disable_fullquicklook()
elif self.pressedkey == ord('5'):
self.args.disable_top = not self.args.disable_top
if self.args.disable_top:
self.disable_top()
else:
self.enable_top()
elif self.pressedkey == ord('e'):
# 'e' > Enable/Disable process extended
self.args.enable_process_extended = not self.args.enable_process_extended
if not self.args.enable_process_extended:
glances_processes.disable_extended()
else:
glances_processes.enable_extended()
elif self.pressedkey == ord('E'):
# 'E' > Erase the process filter
glances_processes.process_filter = None
elif self.pressedkey == ord('f'):
# 'f' > Show/hide fs / folder stats
self.args.disable_fs = not self.args.disable_fs
self.args.disable_folders = not self.args.disable_folders
elif self.pressedkey == ord('g'):
# 'g' > Generate graph from history
self.graph_tag = not self.graph_tag
elif self.pressedkey == ord('r'):
# 'r' > Reset graph history
self.reset_history_tag = not self.reset_history_tag
elif self.pressedkey == ord('w'):
# 'w' > Delete finished warning logs
glances_logs.clean()
elif self.pressedkey == ord('x'):
# 'x' > Delete finished warning and critical logs
glances_logs.clean(critical=True)
elif self.pressedkey == ord('z'):
# 'z' > Enable or disable processes
self.args.disable_process = not self.args.disable_process
if self.args.disable_process:
glances_processes.disable()
else:
glances_processes.enable()
elif self.pressedkey == curses.KEY_LEFT:
# "<" (left arrow) navigation through process sort
setattr(glances_processes, 'auto_sort', False)
next_sort = (self.loop_position() - 1) % len(self._sort_loop)
glances_processes.sort_key = self._sort_loop[next_sort]
elif self.pressedkey == curses.KEY_RIGHT:
# ">" (right arrow) navigation through process sort
setattr(glances_processes, 'auto_sort', False)
next_sort = (self.loop_position() + 1) % len(self._sort_loop)
glances_processes.sort_key = self._sort_loop[next_sort]
# Return the key code
return self.pressedkey
def loop_position(self):
"""Return the current sort in the loop"""
for i, v in enumerate(self._sort_loop):
if v == glances_processes.sort_key:
return i
return 0
def disable_top(self):
"""Disable the top panel"""
for p in ['quicklook', 'cpu', 'gpu', 'mem', 'memswap', 'load']:
setattr(self.args, 'disable_' + p, True)
def enable_top(self):
"""Enable the top panel"""
for p in ['quicklook', 'cpu', 'gpu', 'mem', 'memswap', 'load']:
setattr(self.args, 'disable_' + p, False)
def disable_fullquicklook(self):
"""Disable the full quicklook mode"""
for p in ['quicklook', 'cpu', 'gpu', 'mem', 'memswap']:
setattr(self.args, 'disable_' + p, False)
def enable_fullquicklook(self):
"""Disable the full quicklook mode"""
self.args.disable_quicklook = False
for p in ['cpu', 'gpu', 'mem', 'memswap']:
setattr(self.args, 'disable_' + p, True)
def end(self):
"""Shutdown the curses window."""
if hasattr(curses, 'echo'):
curses.echo()
if hasattr(curses, 'nocbreak'):
curses.nocbreak()
if hasattr(curses, 'curs_set'):
try:
curses.curs_set(1)
except Exception:
pass
curses.endwin()
def init_line_column(self):
"""Init the line and column position for the curses interface."""
self.init_line()
self.init_column()
def init_line(self):
"""Init the line position for the curses interface."""
self.line = 0
self.next_line = 0
def init_column(self):
"""Init the column position for the curses interface."""
self.column = 0
self.next_column = 0
def new_line(self):
"""New line in the curses interface."""
self.line = self.next_line
def new_column(self):
"""New column in the curses interface."""
self.column = self.next_column
def __get_stat_display(self, stats, plugin_max_width):
"""Return a dict of dict with all the stats display
* key: plugin name
* value: dict returned by the get_stats_display Plugin method
:returns: dict of dict
"""
ret = {}
for p in stats.getAllPlugins(enable=False):
if p in ['network', 'wifi', 'irq', 'fs', 'folders']:
ret[p] = stats.get_plugin(p).get_stats_display(
args=self.args, max_width=plugin_max_width)
elif p in ['quicklook']:
# Grab later because we need plugin size
continue
else:
# system, uptime, cpu, percpu, gpu, load, mem, memswap, ip,
# ... diskio, raid, sensors, ports, now, docker, processcount,
# ... amps, alert
try:
ret[p] = stats.get_plugin(p).get_stats_display(args=self.args)
except AttributeError:
ret[p] = None
if self.args.percpu:
ret['cpu'] = ret['percpu']
return ret
def display(self, stats, cs_status=None):
"""Display stats on the screen.
stats: Stats database to display
cs_status:
"None": standalone or server mode
"Connected": Client is connected to a Glances server
"SNMP": Client is connected to a SNMP server
"Disconnected": Client is disconnected from the server
Return:
True if the stats have been displayed
False if the help have been displayed
"""
# Init the internal line/column for Glances Curses
self.init_line_column()
# No processes list in SNMP mode
if cs_status == 'SNMP':
# so... more space for others plugins
plugin_max_width = 43
else:
plugin_max_width = None
# Update the stats messages
###########################
# Update the client server status
self.args.cs_status = cs_status
__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"]) -
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
except AttributeError:
pass
if max_processes_displayed < 0:
max_processes_displayed = 0
if (glances_processes.max_processes is None or
glances_processes.max_processes != max_processes_displayed):
logger.debug("Set number of displayed processes to {}".format(max_processes_displayed))
glances_processes.max_processes = max_processes_displayed
__stat_display["processlist"] = stats.get_plugin(
'processlist').get_stats_display(args=self.args)
# Display the stats on the curses interface
###########################################
# Help screen (on top of the other stats)
if self.args.help_tag:
# Display the stats...
self.display_plugin(
stats.get_plugin('help').get_stats_display(args=self.args))
# ... and exit
return False
# =====================================
# Display first line (system+ip+uptime)
# Optionnaly: Cloud on second line
# =====================================
self.__display_firstline(__stat_display)
# ==============================================================
# Display second line (<SUMMARY>+CPU|PERCPU+<GPU>+LOAD+MEM+SWAP)
# ==============================================================
self.__display_secondline(__stat_display, stats)
# ==================================================================
# Display left sidebar (NETWORK+PORTS+DISKIO+FS+SENSORS+Current time)
# ==================================================================
self.__display_left(__stat_display)
# ====================================
# Display right stats (process and co)
# ====================================
self.__display_right(__stat_display)
# History option
# Generate history graph
if self.graph_tag and self.args.export_graph:
self.display_popup(
'Generate graphs history in {}\nPlease wait...'.format(
self.glances_graph.get_output_folder()))
self.display_popup(
'Generate graphs history in {}\nDone: {} graphs generated'.format(
self.glances_graph.get_output_folder(),
self.glances_graph.generate_graph(stats)))
elif self.reset_history_tag and self.args.export_graph:
self.display_popup('Reset graph history')
self.glances_graph.reset(stats)
elif (self.graph_tag or self.reset_history_tag) and not self.args.export_graph:
try:
self.glances_graph.graph_enabled()
except Exception:
self.display_popup('Graph disabled\nEnable it using --export-graph')
else:
self.display_popup('Graph disabled')
self.graph_tag = False
self.reset_history_tag = False
# Display edit filter popup
# Only in standalone mode (cs_status is None)
if self.edit_filter and cs_status is None:
new_filter = self.display_popup(
'Process filter pattern: \n\n' +
'Examples:\n' +
'- python\n' +
'- .*python.*\n' +
'- \/usr\/lib.*\n' +
'- name:.*nautilus.*\n' +
'- cmdline:.*glances.*\n' +
'- username:nicolargo\n' +
'- username:^root ',
is_input=True,
input_value=glances_processes.process_filter_input)
glances_processes.process_filter = new_filter
elif self.edit_filter and cs_status is not None:
self.display_popup('Process filter only available in standalone mode')
self.edit_filter = False
return True
def __display_firstline(self, stat_display):
"""Display the first line in the Curses interface.
system + ip + uptime
"""
# 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"]))
self.display_plugin(
stat_display["system"],
display_optional=(self.screen.getmaxyx()[1] >= l_uptime))
self.new_column()
self.display_plugin(stat_display["ip"])
# Space between column
self.space_between_column = 3
self.new_column()
self.display_plugin(stat_display["uptime"],
add_space=self.get_stats_display_width(stat_display["cloud"]) == 0)
self.init_column()
self.new_line()
self.display_plugin(stat_display["cloud"])
def __display_secondline(self, stat_display, stats):
"""Display the second line in the Curses interface.
<QUICKLOOK> + CPU|PERCPU + <GPU> + MEM + SWAP + LOAD
"""
self.init_column()
self.new_line()
# Init quicklook
stat_display['quicklook'] = {'msgdict': []}
# Dict for plugins width
plugin_widths = {'quicklook': 0}
for p in ['cpu', 'gpu', 'mem', 'memswap', 'load']:
plugin_widths[p] = self.get_stats_display_width(stat_display[p]) if hasattr(self.args, 'disable_' + p) and p in stat_display else 0
# Width of all plugins
stats_width = sum(itervalues(plugin_widths))
# Number of plugin but quicklook
stats_number = (
int(not self.args.disable_cpu and stat_display["cpu"]['msgdict'] != []) +
int(not self.args.disable_gpu and stat_display["gpu"]['msgdict'] != []) +
int(not self.args.disable_mem and stat_display["mem"]['msgdict'] != []) +
int(not self.args.disable_memswap and stat_display["memswap"]['msgdict'] != []) +
int(not self.args.disable_load and stat_display["load"]['msgdict'] != []))
if not self.args.disable_quicklook:
# Quick look is in the place !
if self.args.full_quicklook:
quicklook_width = self.screen.getmaxyx()[1] - (stats_width + 8 + stats_number * self.space_between_column)
else:
quicklook_width = min(self.screen.getmaxyx()[1] - (stats_width + 8 + stats_number * self.space_between_column), 79)
try:
stat_display["quicklook"] = stats.get_plugin(
'quicklook').get_stats_display(max_width=quicklook_width, args=self.args)
except AttributeError as e:
logger.debug("Quicklook plugin not available (%s)" % e)
else:
plugin_widths['quicklook'] = self.get_stats_display_width(stat_display["quicklook"])
stats_width = sum(itervalues(plugin_widths)) + 1
self.space_between_column = 1
self.display_plugin(stat_display["quicklook"])
self.new_column()
# Compute spaces between plugins
# Note: Only one space between Quicklook and others
plugin_display_optional = {}
for p in ['cpu', 'gpu', 'mem', 'memswap', 'load']:
plugin_display_optional[p] = True
if stats_number > 1:
self.space_between_column = max(1, int((self.screen.getmaxyx()[1] - stats_width) / (stats_number - 1)))
for p in ['mem', 'cpu']:
# No space ? Remove optional stats
if self.space_between_column < 3:
plugin_display_optional[p] = False
plugin_widths[p] = self.get_stats_display_width(stat_display[p], without_option=True) if hasattr(self.args, 'disable_' + p) else 0
stats_width = sum(itervalues(plugin_widths)) + 1
self.space_between_column = max(1, int((self.screen.getmaxyx()[1] - stats_width) / (stats_number - 1)))
else:
self.space_between_column = 0
# Display CPU, MEM, SWAP and LOAD
for p in ['cpu', 'gpu', 'mem', 'memswap', 'load']:
if p in stat_display:
self.display_plugin(stat_display[p],
display_optional=plugin_display_optional[p])
if p is not 'load':
# Skip last column
self.new_column()
# Space between column
self.space_between_column = 3
# Backup line position
self.saved_line = self.next_line
def __display_left(self, stat_display):
"""Display the left sidebar in the Curses interface.
network+wifi+ports+diskio+fs+irq+folders+raid+sensors+now
"""
self.init_column()
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):
self.new_line()
self.display_plugin(stat_display[s])
def __display_right(self, stat_display):
"""Display the right sidebar in the Curses interface.
docker + processcount + amps + processlist + alert
"""
# If space available...
if self.screen.getmaxyx()[1] > 52:
# Restore line position
self.next_line = self.saved_line
# Display right sidebar
# DOCKER+PROCESS_COUNT+AMPS+PROCESS_LIST+ALERT
self.new_column()
self.new_line()
self.display_plugin(stat_display["docker"])
self.new_line()
self.display_plugin(stat_display["processcount"])
self.new_line()
self.display_plugin(stat_display["amps"])
self.new_line()
self.display_plugin(stat_display["processlist"],
display_optional=(self.screen.getmaxyx()[1] > 102),
display_additional=(not MACOS),
max_y=(self.screen.getmaxyx()[0] - self.get_stats_display_height(stat_display["alert"]) - 2))
self.new_line()
self.display_plugin(stat_display["alert"])
def display_popup(self, message,
size_x=None, size_y=None,
duration=3,
is_input=False,
input_size=30,
input_value=None):
"""
Display a centered popup.
If is_input is False:
Display a centered popup with the given message during duration seconds
If size_x and size_y: set the popup size
else set it automatically
Return True if the popup could be displayed
If is_input is True:
Display a centered popup with the given message and a input field
If size_x and size_y: set the popup size
else set it automatically
Return the input string or None if the field is empty
"""
# Center the popup
sentence_list = message.split('\n')
if size_x is None:
size_x = len(max(sentence_list, key=len)) + 4
# Add space for the input field
if is_input:
size_x += input_size
if size_y is None:
size_y = len(sentence_list) + 4
screen_x = self.screen.getmaxyx()[1]
screen_y = self.screen.getmaxyx()[0]
if size_x > screen_x or size_y > screen_y:
# No size to display the popup => abord
return False
pos_x = int((screen_x - size_x) / 2)
pos_y = int((screen_y - size_y) / 2)
# Create the popup
popup = curses.newwin(size_y, size_x, pos_y, pos_x)
# Fill the popup
popup.border()
# Add the message
for y, m in enumerate(message.split('\n')):
popup.addnstr(2 + y, 2, m, len(m))
if is_input and not WINDOWS:
# Create a subwindow for the text field
subpop = popup.derwin(1, input_size, 2, 2 + len(m))
subpop.attron(self.colors_list['FILTER'])
# Init the field with the current value
if input_value is not None:
subpop.addnstr(0, 0, input_value, len(input_value))
# Display the popup
popup.refresh()
subpop.refresh()
# Create the textbox inside the subwindows
self.set_cursor(2)
self.term_window.keypad(1)
textbox = GlancesTextbox(subpop, insert_mode=False)
textbox.edit()
self.set_cursor(0)
self.term_window.keypad(0)
if textbox.gather() != '':
logger.debug(
"User enters the following string: %s" % textbox.gather())
return textbox.gather()[:-1]
else:
logger.debug("User centers an empty string")
return None
else:
# Display the popup
popup.refresh()
self.wait(duration * 1000)
return True
def display_plugin(self, plugin_stats,
display_optional=True,
display_additional=True,
max_y=65535,
add_space=True):
"""Display the plugin_stats on the screen.
If display_optional=True display the optional stats
If display_additional=True display additionnal stats
max_y do not display line > max_y
"""
# Exit if:
# - the plugin_stats message is empty
# - the display tag = False
if plugin_stats is None or not plugin_stats['msgdict'] or not plugin_stats['display']:
# Exit
return 0
# Get the screen size
screen_x = self.screen.getmaxyx()[1]
screen_y = self.screen.getmaxyx()[0]
# Set the upper/left position of the message
if plugin_stats['align'] == 'right':
# Right align (last column)
display_x = screen_x - self.get_stats_display_width(plugin_stats)
else:
display_x = self.column
if plugin_stats['align'] == 'bottom':
# Bottom (last line)
display_y = screen_y - self.get_stats_display_height(plugin_stats)
else:
display_y = self.line
# Display
x = display_x
x_max = x
y = display_y
for m in plugin_stats['msgdict']:
# New line
if m['msg'].startswith('\n'):
# Go to the next line
y += 1
# Return to the first column
x = display_x
continue
# Do not display outside the screen
if x < 0:
continue
if not m['splittable'] and (x + len(m['msg']) > screen_x):
continue
if y < 0 or (y + 1 > screen_y) or (y > max_y):
break
# If display_optional = False do not display optional stats
if not display_optional and m['optional']:
continue
# If display_additional = False do not display additional stats
if not display_additional and m['additional']:
continue
# Is it possible to display the stat with the current screen size
# !!! Crach if not try/except... Why ???
try:
self.term_window.addnstr(y, x,
m['msg'],
# Do not disply outside the screen
screen_x - x,
self.colors_list[m['decoration']])
except Exception:
pass
else:
# New column
# Python 2: we need to decode to get real screen size because
# UTF-8 special tree chars occupy several bytes.
# Python 3: strings are strings and bytes are bytes, all is
# good.
try:
x += len(u(m['msg']))
except UnicodeDecodeError:
# Quick and dirty hack for issue #745
pass
if x > x_max:
x_max = x
# Compute the next Glances column/line position
self.next_column = max(
self.next_column, x_max + self.space_between_column)
self.next_line = max(self.next_line, y + self.space_between_line)
if not add_space and self.next_line > 0:
# Do not have empty line after
self.next_line -= 1
def erase(self):
"""Erase the content of the screen."""
self.term_window.erase()
def flush(self, stats, cs_status=None):
"""Clear and update the screen.
stats: Stats database to display
cs_status:
"None": standalone or server mode
"Connected": Client is connected to the server
"Disconnected": Client is disconnected from the server
"""
self.erase()
self.display(stats, cs_status=cs_status)
def update(self, stats, cs_status=None, return_to_browser=False):
"""Update the screen.
Wait for __refresh_time sec / catch key every 100 ms.
INPUT
stats: Stats database to display
cs_status:
"None": standalone or server mode
"Connected": Client is connected to the server
"Disconnected": Client is disconnected from the server
return_to_browser:
True: Do not exist, return to the browser list
False: Exit and return to the shell
OUPUT
True: Exit key has been pressed
False: Others cases...
"""
# Flush display
self.flush(stats, cs_status=cs_status)
# Wait
exitkey = False
countdown = Timer(self.__refresh_time)
while not countdown.finished() and not exitkey:
# Getkey
pressedkey = self.__catch_key(return_to_browser=return_to_browser)
# Is it an exit key ?
exitkey = (pressedkey == ord('\x1b') or pressedkey == ord('q'))
if not exitkey and pressedkey > -1:
# Redraw display
self.flush(stats, cs_status=cs_status)
# Wait 100ms...
self.wait()
return exitkey
def wait(self, delay=100):
"""Wait delay in ms"""
curses.napms(100)
def get_stats_display_width(self, curse_msg, without_option=False):
"""Return the width of the formatted curses message.
The height is defined by the maximum line.
"""
try:
if without_option:
# Size without options
c = len(max(''.join([(re.sub(r'[^\x00-\x7F]+', ' ', i['msg']) if not i['optional'] else "")
for i in curse_msg['msgdict']]).split('\n'), key=len))
else:
# Size with all options
c = len(max(''.join([re.sub(r'[^\x00-\x7F]+', ' ', i['msg'])
for i in curse_msg['msgdict']]).split('\n'), key=len))
except Exception:
return 0
else:
return c
def get_stats_display_height(self, curse_msg):
r"""Return the height of the formatted curses message.
The height is defined by the number of '\n' (new line).
"""
try:
c = [i['msg'] for i in curse_msg['msgdict']].count('\n')
except Exception:
return 0
else:
return c + 1
class GlancesCursesStandalone(_GlancesCurses):
"""Class for the Glances curse standalone."""
pass
class GlancesCursesClient(_GlancesCurses):
"""Class for the Glances curse client."""
pass
if not WINDOWS:
class GlancesTextbox(Textbox, object):
def __init__(self, *args, **kwargs):
super(GlancesTextbox, self).__init__(*args, **kwargs)
def do_command(self, ch):
if ch == 10: # Enter
return 0
if ch == 127: # Back
return 8
return super(GlancesTextbox, self).do_command(ch)
|