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
|
# Copyright (C) 2005 Canonical Ltd
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Text UI, write output to the console.
"""
import sys
from bzrlib.lazy_import import lazy_import
lazy_import(globals(), """
import getpass
from bzrlib import (
progress,
osutils,
)
""")
from bzrlib.ui import CLIUIFactory
class TextUIFactory(CLIUIFactory):
"""A UI factory for Text user interefaces."""
def __init__(self,
bar_type=None,
stdout=None,
stderr=None):
"""Create a TextUIFactory.
:param bar_type: The type of progress bar to create. It defaults to
letting the bzrlib.progress.ProgressBar factory auto
select.
"""
super(TextUIFactory, self).__init__()
self._bar_type = bar_type
if stdout is None:
self.stdout = sys.stdout
else:
self.stdout = stdout
if stderr is None:
self.stderr = sys.stderr
else:
self.stderr = stderr
def prompt(self, prompt):
"""Emit prompt on the CLI."""
self.stdout.write(prompt)
def nested_progress_bar(self):
"""Return a nested progress bar.
The actual bar type returned depends on the progress module which
may return a tty or dots bar depending on the terminal.
"""
if self._progress_bar_stack is None:
self._progress_bar_stack = progress.ProgressBarStack(
klass=self._bar_type)
return self._progress_bar_stack.get_nested()
def clear_term(self):
"""Prepare the terminal for output.
This will, clear any progress bars, and leave the cursor at the
leftmost position."""
if self._progress_bar_stack is None:
return
overall_pb = self._progress_bar_stack.bottom()
if overall_pb is not None:
overall_pb.clear()
|