Merge branch 'issue1847' into develop

4 files changed, 146 insertions, 3 deletions

diff --git a/glances/__init__.py b/glances/__init__.py
index c48b434e..8b640606 100644
--- a/glances/__init__.py
+++ b/glances/__init__.py
@@ -111,7 +111,12 @@ def start(config, args):
 
     # Start the main loop
     logger.debug("Glances started in {} seconds".format(start_duration.get()))
-    mode.serve_forever()
+    if args.stdout_issue:
+        # Serve once for issue/test mode 
+        mode.serve_issue()
+    else:
+        # Serve forever
+        mode.serve_forever()
 
     # Shutdown
     mode.end()
diff --git a/glances/main.py b/glances/main.py
index 9df41276..6a86e64f 100644
--- a/glances/main.py
+++ b/glances/main.py
@@ -234,6 +234,8 @@ Examples of use:
                             dest='stdout', help='display stats to stdout, one stat per line (comma separated list of plugins/plugins.attribute)')
         parser.add_argument('--stdout-csv', default=None,
                             dest='stdout_csv', help='display stats to stdout, csv format (comma separated list of plugins/plugins.attribute)')
+        parser.add_argument('--issue', default=None, action='store_true',
+                            dest='stdout_issue', help='test all plugins and exit (please copy/paste the output if you open an issue)')
         if not WINDOWS:
             parser.add_argument('--hide-kernel-threads', action='store_true', default=False,
                                 dest='no_kernel_threads', help='hide kernel threads in process list (not available on Windows)')
diff --git a/glances/outputs/glances_stdout_issue.py b/glances/outputs/glances_stdout_issue.py
new file mode 100644
index 00000000..ffdf7c3c
--- /dev/null
+++ b/glances/outputs/glances_stdout_issue.py
@@ -0,0 +1,123 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of Glances.
+#
+# Copyright (C) 2021 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/>.
+
+"""Issue interface class."""
+
+import time
+import sys
+import shutil
+
+from glances.logger import logger
+from glances.compat import printandflush
+from glances.timer import Counter
+from glances import __version__, psutil_version
+
+try:
+    TERMINAL_WIDTH = shutil.get_terminal_size(fallback=(79, 24)).columns
+except:
+    TERMINAL_WIDTH = 79
+
+
+class colors:
+    RED = '\033[91m'
+    GREEN = '\033[92m'
+    ORANGE = '\033[93m'
+    BLUE = '\033[94m'
+    NO = '\033[0m'
+
+    def disable(self):
+        self.RED = ''
+        self.GREEN = ''
+        self.BLUE = ''
+        self.ORANGE = ''
+        self.NO = ''
+
+
+class GlancesStdoutIssue(object):
+
+    """
+    This class manages the Issue display.
+    """
+
+    def __init__(self, config=None, args=None):
+        # Init
+        self.config = config
+        self.args = args
+
+    def end(self):
+        pass
+
+    def print_version(self):
+        msg = 'Glances version {} with PsUtil {}'.format(
+            colors.BLUE + __version__ + colors.NO, 
+            colors.BLUE + psutil_version + colors.NO)
+        sys.stdout.write('='*len(msg) + '\n')
+        sys.stdout.write(msg)
+        sys.stdout.write(colors.NO + '\n')
+        sys.stdout.write('='*len(msg) + '\n')
+        sys.stdout.flush()
+
+    def print_issue(self, plugin, result, message):
+        sys.stdout.write('{}{}{}'.format(
+            colors.BLUE + plugin, result, message))
+        sys.stdout.write(colors.NO + '\n')
+        sys.stdout.flush()
+
+    def update(self,
+               stats,
+               duration=3):
+        """Display issue
+        """
+        self.print_version()
+        for plugin in sorted(stats._plugins):
+            if stats._plugins[plugin].is_disable():
+                # If current plugin is disable
+                # then continue to next plugin
+                result = colors.ORANGE + '[N/A]'.rjust(19 - len(plugin))
+                message = colors.NO
+                self.print_issue(plugin, result, message)
+                continue
+            # Start the counter
+            counter = Counter()
+            counter.reset()
+            stat = None
+            stat_error = None
+            try:
+                # Update the stats
+                stats._plugins[plugin].update()
+                # Get the stats
+                stat = stats.get_plugin(plugin).get_export()
+            except Exception as e:
+                stat_error = e
+            if stat_error is None:
+                result = (colors.GREEN +
+                          '[OK]   ' +
+                          colors.BLUE +
+                          ' {:.4f}s '.format(counter.get())).rjust(40 - len(plugin))
+                message = colors.NO + str(stat)[0:TERMINAL_WIDTH-40]
+            else:
+                result = (colors.RED +
+                          '[ERROR]' +
+                          colors.BLUE +
+                          ' {:.4f}s '.format(counter.get())).rjust(40 - len(plugin))
+                message = colors.NO + str(stat_error)[0:TERMINAL_WIDTH-40]
+            self.print_issue(plugin, result, message)
+
+        # Return True to exit directly (no refresh)
+        return True
diff --git a/glances/standalone.py b/glances/standalone.py
index d94af6fc..1ab1facb 100644
--- a/glances/standalone.py
+++ b/glances/standalone.py
@@ -29,6 +29,7 @@ from glances.stats import GlancesStats
 from glances.outputs.glances_curses import GlancesCursesStandalone
 from glances.outputs.glances_stdout import GlancesStdout
 from glances.outputs.glances_stdout_csv import GlancesStdoutCsv
+from glances.outputs.glances_stdout_issue import GlancesStdoutIssue
 from glances.outdated import Outdated
 from glances.timer import Counter
 
@@ -82,6 +83,10 @@ class GlancesStandalone(object):
             logger.info("Quiet mode is ON, nothing will be displayed")
             # In quiet mode, nothing is displayed
             glances_processes.max_processes = 0
+        elif args.stdout_issue:
+            logger.info("Issue mode is ON")
+            # Init screen
+            self.screen = GlancesStdoutIssue(config=config, args=args)
         elif args.stdout:
             logger.info("Stdout mode is ON, following stats will be displayed: {}".format(args.stdout))
             # Init screen
@@ -111,7 +116,15 @@ class GlancesStandalone(object):
         print("Exporters list: {}".format(
             ', '.join(sorted(self.stats.getExportsList(enable=False)))))
 
-    def __serve_forever(self):
+    def serve_issue(self):
+        """Special mode for the --issue option
+        Update is done in the sceen.update function
+        """
+        ret = not self.screen.update(self.stats)
+        self.end()
+        return ret
+
+    def __serve_once(self):
         """Main loop for the CLI.
 
         return True if we should continue (no exit key has been pressed)
@@ -151,7 +164,7 @@ class GlancesStandalone(object):
         """Wrapper to the serve_forever function."""
         loop = True
         while loop:
-            loop = self.__serve_forever()
+            loop = self.__serve_once()
         self.end()
 
     def end(self):