94
class ConfirmationUserInterfacePolicy(object):
95
"""Wrapper for a UIFactory that allows or denies all confirmed actions."""
97
def __init__(self, wrapped_ui, default_answer, specific_answers):
98
"""Generate a proxy UI that does no confirmations.
100
:param wrapped_ui: Underlying UIFactory.
101
:param default_answer: Bool for whether requests for
102
confirmation from the user should be noninteractively accepted or
104
:param specific_answers: Map from confirmation_id to bool answer.
106
self.wrapped_ui = wrapped_ui
107
self.default_answer = default_answer
108
self.specific_answers = specific_answers
110
def __getattr__(self, name):
111
return getattr(self.wrapped_ui, name)
114
return '%s(%r, %r, %r)' % (
115
self.__class__.__name__,
118
self.specific_answers)
120
def confirm_action(self, prompt, confirmation_id, prompt_kwargs):
121
if confirmation_id in self.specific_answers:
122
return self.specific_answers[confirmation_id]
123
elif self.default_answer is not None:
124
return self.default_answer
126
return self.wrapped_ui.confirm_action(
127
prompt, confirmation_id, prompt_kwargs)
103
130
class UIFactory(object):
104
131
"""UI abstraction.
106
133
This tells the library how to display things to the user. Through this
107
134
layer different applications can choose the style of UI.
136
UI Factories are also context managers, for some syntactic sugar some users
109
139
:ivar suppressed_warnings: Identifiers for user warnings that should
115
145
"%(from_format)s to %(to_format)s.\n"
116
146
"This may take some time. Upgrade the repositories to the "
117
147
"same format for better performance."
149
experimental_format_fetch=("Fetching into experimental format "
151
"This format may be unreliable or change in the future "
152
"without an upgrade path.\n"),
154
"The command 'bzr %(deprecated_name)s' "
155
"has been deprecated in bzr %(deprecated_in_version)s. "
156
"Please use 'bzr %(recommended_name)s' instead."),
157
deprecated_command_option=(
158
"The option '%(deprecated_name)s' to 'bzr %(command)s' "
159
"has been deprecated in bzr %(deprecated_in_version)s. "
160
"Please use '%(recommended_name)s' instead."),
161
recommend_upgrade=("%(current_format_name)s is deprecated "
162
"and a better format is available.\n"
163
"It is recommended that you upgrade by "
164
"running the command\n"
165
" bzr upgrade %(basedir)s"),
167
u"Stole dead lock %(lock_url)s %(other_holder_info)s."),
121
170
def __init__(self):
123
172
self.suppressed_warnings = set()
124
173
self._quiet = False
176
"""Context manager entry support.
178
Override in a concrete factory class if initialisation before use is
181
return self # This is bound to the 'as' clause in a with statement.
183
def __exit__(self, exc_type, exc_val, exc_tb):
184
"""Context manager exit support.
186
Override in a concrete factory class if more cleanup than a simple
187
self.clear_term() is needed when the UIFactory is finished with.
190
return False # propogate exceptions.
126
192
def be_quiet(self, state):
127
193
"""Tell the UI to be more quiet, or not.
132
198
self._quiet = state
134
def get_password(self, prompt='', **kwargs):
200
def confirm_action(self, prompt, confirmation_id, prompt_kwargs):
201
"""Seek user confirmation for an action.
203
If the UI is noninteractive, or the user does not want to be asked
204
about this action, True is returned, indicating bzr should just
207
The confirmation id allows the user to configure certain actions to
208
always be confirmed or always denied, and for UIs to specialize the
209
display of particular confirmations.
211
:param prompt: Suggested text to display to the user.
212
:param prompt_kwargs: A dictionary of arguments that can be
213
string-interpolated into the prompt.
214
:param confirmation_id: Unique string identifier for the confirmation.
216
return self.get_boolean(prompt % prompt_kwargs)
218
def get_password(self, prompt=u'', **kwargs):
135
219
"""Prompt the user for a password.
137
:param prompt: The prompt to present the user
221
:param prompt: The prompt to present the user (must be unicode)
138
222
:param kwargs: Arguments which will be expanded into the prompt.
139
223
This lets front ends display different things if
158
242
version of stdout, but in a GUI it might be appropriate to send it to a
159
243
window displaying the text.
161
:param encoding: Unicode encoding for output; default is the
162
terminal encoding, which may be different from the user encoding.
245
:param encoding: Unicode encoding for output; if not specified
246
uses the configured 'output_encoding' if any; otherwise the
163
248
(See get_terminal_encoding.)
165
250
:param encoding_type: How to handle encoding errors:
168
253
# XXX: is the caller supposed to close the resulting object?
169
254
if encoding is None:
170
encoding = osutils.get_terminal_encoding()
255
encoding = config.GlobalStack().get('output_encoding')
257
encoding = osutils.get_terminal_encoding(trace=True)
171
258
if encoding_type is None:
172
259
encoding_type = 'replace'
173
260
out_stream = self._make_output_stream_explicit(encoding, encoding_type)
227
314
template = self._user_warning_templates[warning_id]
229
fail = "failed to format warning %r, %r" % (warning_id, message_args)
230
warnings.warn(fail) # so tests will fail etc
316
fail = "bzr warning: %r, %r" % (warning_id, message_args)
317
warnings.warn("no template for warning: " + fail) # so tests will fail etc
233
320
return template % message_args
234
321
except ValueError, e:
235
fail = "failed to format warning %r, %r: %s" % (
322
fail = "bzr unprintable warning: %r, %r, %s" % (
236
323
warning_id, message_args, e)
237
324
warnings.warn(fail) # so tests will fail etc
327
def choose(self, msg, choices, default=None):
328
"""Prompt the user for a list of alternatives.
330
:param msg: message to be shown as part of the prompt.
332
:param choices: list of choices, with the individual choices separated
333
by '\n', e.g.: choose("Save changes?", "&Yes\n&No\n&Cancel"). The
334
letter after the '&' is the shortcut key for that choice. Thus you
335
can type 'c' to select "Cancel". Shorcuts are case insensitive.
336
The shortcut does not need to be the first letter. If a shorcut key
337
is not provided, the first letter for the choice will be used.
339
:param default: default choice (index), returned for example when enter
340
is pressed for the console version.
342
:return: the index fo the user choice (so '0', '1' or '2' for
343
respectively yes/no/cancel in the previous example).
345
raise NotImplementedError(self.choose)
240
347
def get_boolean(self, prompt):
241
348
"""Get a boolean question answered from the user.
243
350
:param prompt: a message to prompt the user with. Should be a single
244
line without terminating \n.
351
line without terminating \\n.
245
352
:return: True or False for y/yes or n/no.
247
raise NotImplementedError(self.get_boolean)
354
choice = self.choose(prompt + '?', '&yes\n&no', default=None)
249
357
def get_integer(self, prompt):
250
358
"""Get an integer from the user.
252
360
:param prompt: a message to prompt the user with. Could be a multi-line
253
prompt but without a terminating \n.
361
prompt but without a terminating \\n.
255
363
:return: A signed integer.
265
373
return NullProgressView()
267
def recommend_upgrade(self,
270
# XXX: this should perhaps be in the TextUIFactory and the default can do
273
# XXX: Change to show_user_warning - that will accomplish the previous
274
# xxx. -- mbp 2010-02-25
275
trace.warning("%s is deprecated "
276
"and a better format is available.\n"
277
"It is recommended that you upgrade by "
278
"running the command\n"
375
def recommend_upgrade(self, current_format_name, basedir):
376
"""Recommend the user upgrade a control directory.
378
:param current_format_name: Description of the current format
379
:param basedir: Location of the control dir
381
self.show_user_warning('recommend_upgrade',
382
current_format_name=current_format_name, basedir=basedir)
283
384
def report_transport_activity(self, transport, byte_count, direction):
284
385
"""Called by transports as they do IO.
335
436
"""Show a warning to the user."""
336
437
raise NotImplementedError(self.show_warning)
338
def warn_cross_format_fetch(self, from_format, to_format):
339
"""Warn about a potentially slow cross-format transfer.
341
This is deprecated in favor of show_user_warning, but retained for api
342
compatibility in 2.0 and 2.1.
344
self.show_user_warning('cross_format_fetch', from_format=from_format,
347
def warn_experimental_format_fetch(self, inter):
348
"""Warn about fetching into experimental repository formats."""
349
if inter.target._format.experimental:
350
trace.warning("Fetching into experimental format %s.\n"
351
"This format may be unreliable or change in the future "
352
"without an upgrade path.\n" % (inter.target._format,))
356
class SilentUIFactory(UIFactory):
440
class NoninteractiveUIFactory(UIFactory):
441
"""Base class for UIs with no user."""
443
def confirm_action(self, prompt, confirmation_id, prompt_kwargs):
447
return '%s()' % (self.__class__.__name__, )
450
class SilentUIFactory(NoninteractiveUIFactory):
357
451
"""A UI Factory which never prints anything.
359
453
This is the default UI, if another one is never registered by a program
394
488
def __repr__(self):
395
489
return "%s(%r)" % (self.__class__.__name__, self.responses)
491
def confirm_action(self, prompt, confirmation_id, args):
492
return self.get_boolean(prompt % args)
397
494
def get_boolean(self, prompt):
398
495
return self.responses.pop(0)
400
497
def get_integer(self, prompt):
401
498
return self.responses.pop(0)
403
def get_password(self, prompt='', **kwargs):
500
def get_password(self, prompt=u'', **kwargs):
404
501
return self.responses.pop(0)
406
503
def get_username(self, prompt, **kwargs):
added
removed
bzrlib/ui/__init__.py
