/usr/bin/ladi-system-log is in laditools 1.1.0-2.
This file is owned by root:root, with mode 0o755.
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 | #!/usr/bin/python
# LADITools - Linux Audio Desktop Integration Tools
# ladi-system-log - A log viewer for your Linux Audio Desktop
# Copyright (C) 2011-2012 Alessio Treglia <quadrispro@ubuntu.com>
# Copyright (C) 2007-2010, Marc-Olivier Barre <marco@marcochapeau.org>
# Copyright (C) 2007-2009, Nedko Arnaudov <nedko@arnaudov.name>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
import signal
from subprocess import Popen, PIPE
import pty
import termios
import tty
import gettext
import argparse
from laditools import _gettext_domain
gettext.install(_gettext_domain)
from laditools import get_version_string
from laditools import LadiConfiguration
from laditools import LadiApp
from gi.repository import Gtk
from gi.repository import GObject
from gi.repository import Vte
from laditools.gtk import find_data_file
timeout_add = GObject.timeout_add
# Default configuration
max_lines_default = 100
# Output the last <lines> lines
def read_last(lfile, lines):
chunk_size = lines * 60
lfile.seek(0, 2)
endpos = lfile.tell()
pos = endpos - chunk_size
if pos < 0:
pos = 0
backlog = ''
backlog_size = 0
lines += 1
while pos >= 0 and backlog_size <= lines:
lfile.seek(pos, 0)
s = lfile.read(chunk_size)
pos = pos - chunk_size
backlog_size += s.count("\n")
backlog = s + backlog
backlog = backlog.strip().split("\n")
if len(backlog) > lines:
backlog = backlog[-lines:]
lfile.seek(endpos, 0)
return backlog
class LadiSystemLog(LadiApp):
_appname = 'ladi-system-log'
_appname_long = _("LADI Log Viewer")
_appid = 'org.linuxaudio.ladi.logviewer'
_default_config = { 'max_lines' : max_lines_default }
def __init__ (self):
LadiApp.__init__(self)
self.log_files = [
{
'name': 'JACK',
'config_name': 'jackdbus_log',
'config_default': os.sep.join([os.environ['HOME'], ".log", "jack", "jackdbus.log"])
},
{
'name': 'LADISH',
'config_name': 'ladish_log',
'config_default': os.sep.join([os.environ['HOME'], ".log", "ladish", "ladish.log"])
},
{
'name': 'A2J',
'config_name': 'a2j_log',
'config_default': os.sep.join([os.environ['HOME'], ".log", "a2j", "a2j.log"])
},
]
# Handle the configuration
for log in self.log_files:
self._default_config[log['config_name']] = log['config_default']
self.global_config = LadiConfiguration (self.appname, self._default_config)
self.param_dict = self.global_config.get_config_section (self.appname)
self.connect_signals_quit()
for log in self.log_files[:]:
log['logfile_path'] = self.param_dict[log['config_name']]
# skip logfiles that dont exist
if not os.access(log['logfile_path'], os.R_OK):
self.log_files.remove(log)
sys.stderr.write( _("Skipping '%s' because it does not exist\n") % log['logfile_path'])
else:
sys.stderr.write( _("Watching %s\n") % log['logfile_path'])
sys.stderr.flush()
max_lines_text = self.param_dict['max_lines']
self.max_lines = int (max_lines_text)
# Load the glade file
uifile = find_data_file('ladi-system-log.ui')
builder = Gtk.Builder()
builder.add_from_file(uifile)
sys.stderr.write( _("Loading interface from %s\n") % uifile)
sys.stderr.flush()
# Get the ui ready for action
self.event_dict = {"on_ladilog_ui_destroy" : self.quit,
"on_ladilog_ui_delete" : self.on_delete,
"on_close_button_clicked" : self.quit,
"on_clear_button_clicked" : self.on_clear_text,
"on_purge_button_clicked" : self.on_purge}
builder.connect_signals(self.event_dict)
self.ui = ui = builder.get_object("ladilog_ui")
self.logview_notebook = builder.get_object ("ladilog_notebook")
# Create our terminal and display it
for log in self.log_files:
log['scrolled_window'] = sw = Gtk.ScrolledWindow()
log['term'] = term = Vte.Terminal.new ()
sw.set_policy(hscrollbar_policy=Gtk.PolicyType.AUTOMATIC,
vscrollbar_policy=Gtk.PolicyType.ALWAYS)
sw.add(term)
sw.show()
term.set_scroll_on_output(True)
log["tab_label"] = Gtk.Label(label=log["name"])
self.logview_notebook.append_page(log["scrolled_window"],
log["tab_label"])
# Make it do something...
for log in self.log_files:
try:
log['log_file'] = open(log['logfile_path'], "rb")
sys.stderr.write (_("Opening %s...\n") % log['logfile_path'])
lines = read_last(log['log_file'], self.max_lines)
for line in lines:
line = line.strip('\r\n') + '\r\n'
log["term"].feed(line)
except ValueError:
sys.stderr.write( _("You called Popen with invalid arguments... dumbass\n") )
except:
sys.stderr.write( _("Unexpected error: %s\n") % (sys.exc_info ()[0]))
finally:
sys.stderr.flush()
self.auto_updater = timeout_add(250, self.update, None)
def update(self, user_data = None):
# Append latest output to the buffer
for log in self.log_files:
line = log['log_file'].readline()
while line:
log["term"].feed(line + '\r')
line = log['log_file'].readline()
log['log_file'].seek(log['log_file'].tell())
return True
def on_delete(self, widget=None, data=None):
return False
def quit (self, *args, **kwargs):
self.global_config.set_config_section (self.appname, self.param_dict)
self.global_config.save ()
Gtk.main_quit ()
def on_clear_text (self, data=None):
current_view = self.logview_notebook.get_current_page ()
self.log_files[current_view]["term"].feed ("\033[2J\033[;f", -1)
def on_purge (self, data=None):
current_view = self.logview_notebook.get_current_page ()
# Opens the file in write anew mode thus clearing the file and close it right away
open (self.log_files[current_view]['logfile_path'], "w+")
self.log_files[current_view]["term"].feed ("\033[2J\033[;f", -1)
def run (self):
self.ui.show_all()
Gtk.main ()
if __name__ == '__main__':
parser = argparse.ArgumentParser(description=_('JACK, ladish and a2jmidid log viewer'),
epilog=_('This program is part of the LADITools suite.'))
parser.add_argument('--version', action='version', version="%(prog)s " + get_version_string())
parser.parse_args()
Gtk.init(None)
LadiSystemLog().run()
sys.exit(0)
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