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debug.py

#!/usr/bin/env python
# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
from __future__ import with_statement

__license__   = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'

import os

from PyQt4.Qt import SIGNAL

from calibre.gui2.convert.debug_ui import Ui_Form
from calibre.gui2.convert import Widget
from calibre.gui2 import error_dialog, choose_dir

class DebugWidget(Widget, Ui_Form):

    TITLE = _('Debug')
    ICON  = I('debug.png')
    HELP  = _('Debug the conversion process.')
    COMMIT_NAME = 'debug'

    def __init__(self, parent, get_option, get_help, db=None, book_id=None):
        Widget.__init__(self, parent,
                ['debug_pipeline']
                )
        self.db, self.book_id = db, book_id
        self.initialize_options(get_option, get_help, db, book_id)
        self.connect(self.button_debug_dir, SIGNAL('clicked()'),
                self.set_debug_dir)
        self.connect(self.button_clear, SIGNAL('clicked()'),
                self.clear_debug_dir)

    def clear_debug_dir(self):
        self.opt_debug_pipeline.setText('')

    def set_debug_dir(self):
        x = choose_dir(self, 'conversion debug dir', _('Choose debug folder'))
        if x:
            self.opt_debug_pipeline.setText(x)

    def pre_commit_check(self):
        try:
            x = unicode(self.opt_debug_pipeline.text()).strip()
            if not x:
                return True
            x = os.path.abspath(x)
            if x:
                if not os.path.exists(x):
                    os.makedirs(x)
                test = os.path.join(x, 'test')
                open(test, 'wb').close()
                os.remove(test)
        except:
            import traceback
            det_msg = traceback.format_exc()
            error_dialog(self, _('Invalid debug directory'),
                    _('Failed to create debug directory')+': '+
                        unicode(self.opt_debug_pipeline.text()),
                        det_msg=det_msg, show=True)
            return False
        return True


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