4933c6b580
Due to change in file.seek() behavior, the log viewer errorer when faced with a very large file.
85 lines
2.5 KiB
Python
85 lines
2.5 KiB
Python
#!/usr/bin/python3
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2012 Agnieszka Kostrzewa <agnieszka.kostrzewa@gmail.com>
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# Copyright (C) 2012 Marek Marczykowski <marmarek@mimuw.edu.pl>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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#
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import sys
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from PyQt4 import QtCore # pylint: disable=import-error
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from PyQt4 import QtGui # pylint: disable=import-error
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from . import ui_logdlg # pylint: disable=no-name-in-module
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from . import clipboard
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import os
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from qubesadmin import Qubes
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# Display only this size of log
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LOG_DISPLAY_SIZE = 1024*1024
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class LogDialog(ui_logdlg.Ui_LogDialog, QtGui.QDialog):
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# pylint: disable=too-few-public-methods
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def __init__(self, app, log_path, parent=None):
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super(LogDialog, self).__init__(parent)
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self.app = app
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self.log_path = log_path
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self.setupUi(self)
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self.setWindowTitle(log_path)
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self.connect(self.copy_to_qubes_clipboard,
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QtCore.SIGNAL("clicked()"),
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self.copy_to_clipboard_triggered)
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self.__init_log_text__()
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def __init_log_text__(self):
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self.displayed_text = ""
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log = open(self.log_path)
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log.seek(0, os.SEEK_END)
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if log.tell() > LOG_DISPLAY_SIZE:
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self.displayed_text = self.tr(
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"(Showing only last %d bytes of file)\n") % LOG_DISPLAY_SIZE
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log.seek(log.tell()-LOG_DISPLAY_SIZE, os.SEEK_SET)
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else:
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log.seek(0, os.SEEK_SET)
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self.displayed_text += log.read()
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log.close()
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self.log_text.setPlainText(self.displayed_text)
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def copy_to_clipboard_triggered(self):
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clipboard.copy_text_to_qubes_clipboard(self.displayed_text)
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def main():
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qubes_app = Qubes()
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qt_app = QtGui.QApplication(sys.argv)
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log_window = LogDialog(qubes_app, sys.argv[1])
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log_window.show()
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qt_app.exec_()
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qt_app.exit()
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if __name__ == "__main__":
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main()
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