637
554
return command_line
640
class _ConfigHooks(hooks.Hooks):
641
"""A dict mapping hook names and a list of callables for configs.
645
"""Create the default hooks.
647
These are all empty initially, because by default nothing should get
650
super(_ConfigHooks, self).__init__('bzrlib.config', 'ConfigHooks')
651
self.add_hook('load',
652
'Invoked when a config store is loaded.'
653
' The signature is (store).',
655
self.add_hook('save',
656
'Invoked when a config store is saved.'
657
' The signature is (store).',
659
# The hooks for config options
661
'Invoked when a config option is read.'
662
' The signature is (stack, name, value).',
665
'Invoked when a config option is set.'
666
' The signature is (stack, name, value).',
668
self.add_hook('remove',
669
'Invoked when a config option is removed.'
670
' The signature is (stack, name).',
672
ConfigHooks = _ConfigHooks()
675
class _OldConfigHooks(hooks.Hooks):
676
"""A dict mapping hook names and a list of callables for configs.
680
"""Create the default hooks.
682
These are all empty initially, because by default nothing should get
685
super(_OldConfigHooks, self).__init__('bzrlib.config', 'OldConfigHooks')
686
self.add_hook('load',
687
'Invoked when a config store is loaded.'
688
' The signature is (config).',
690
self.add_hook('save',
691
'Invoked when a config store is saved.'
692
' The signature is (config).',
694
# The hooks for config options
696
'Invoked when a config option is read.'
697
' The signature is (config, name, value).',
700
'Invoked when a config option is set.'
701
' The signature is (config, name, value).',
703
self.add_hook('remove',
704
'Invoked when a config option is removed.'
705
' The signature is (config, name).',
707
OldConfigHooks = _OldConfigHooks()
710
557
class IniBasedConfig(Config):
711
558
"""A configuration policy that draws from ini files."""
2315
2104
The option *values* are stored in config files and found in sections.
2317
2106
Here we define various properties about the option itself, its default
2318
value, how to convert it from stores, what to do when invalid values are
2319
encoutered, in which config files it can be stored.
2107
value, in which config files it can be stored, etc (TBC).
2322
def __init__(self, name, default=None, default_from_env=None,
2324
from_unicode=None, invalid=None):
2325
"""Build an option definition.
2327
:param name: the name used to refer to the option.
2329
:param default: the default value to use when none exist in the config
2330
stores. This is either a string that ``from_unicode`` will convert
2331
into the proper type or a python object that can be stringified (so
2332
only the empty list is supported for example).
2334
:param default_from_env: A list of environment variables which can
2335
provide a default value. 'default' will be used only if none of the
2336
variables specified here are set in the environment.
2338
:param help: a doc string to explain the option to the user.
2340
:param from_unicode: a callable to convert the unicode string
2341
representing the option value in a store. This is not called for
2344
:param invalid: the action to be taken when an invalid value is
2345
encountered in a store. This is called only when from_unicode is
2346
invoked to convert a string and returns None or raise ValueError or
2347
TypeError. Accepted values are: None (ignore invalid values),
2348
'warning' (emit a warning), 'error' (emit an error message and
2351
if default_from_env is None:
2352
default_from_env = []
2110
def __init__(self, name, default=None):
2353
2111
self.name = name
2354
# Convert the default value to a unicode string so all values are
2355
# strings internally before conversion (via from_unicode) is attempted.
2358
elif isinstance(default, list):
2359
# Only the empty list is supported
2361
raise AssertionError(
2362
'Only empty lists are supported as default values')
2364
elif isinstance(default, (str, unicode, bool, int, float)):
2365
# Rely on python to convert strings, booleans and integers
2366
self.default = u'%s' % (default,)
2368
# other python objects are not expected
2369
raise AssertionError('%r is not supported as a default value'
2371
self.default_from_env = default_from_env
2373
self.from_unicode = from_unicode
2374
if invalid and invalid not in ('warning', 'error'):
2375
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2376
self.invalid = invalid
2378
def convert_from_unicode(self, unicode_value):
2379
if self.from_unicode is None or unicode_value is None:
2380
# Don't convert or nothing to convert
2381
return unicode_value
2383
converted = self.from_unicode(unicode_value)
2384
except (ValueError, TypeError):
2385
# Invalid values are ignored
2387
if converted is None and self.invalid is not None:
2388
# The conversion failed
2389
if self.invalid == 'warning':
2390
trace.warning('Value "%s" is not valid for "%s"',
2391
unicode_value, self.name)
2392
elif self.invalid == 'error':
2393
raise errors.ConfigOptionValueError(self.name, unicode_value)
2112
self.default = default
2396
2114
def get_default(self):
2398
for var in self.default_from_env:
2400
# If the env variable is defined, its value is the default one
2401
value = os.environ[var]
2406
# Otherwise, fallback to the value defined at registration
2407
value = self.default
2410
def get_help_text(self, additional_see_also=None, plain=True):
2412
from bzrlib import help_topics
2413
result += help_topics._format_see_also(additional_see_also)
2415
result = help_topics.help_as_plain_text(result)
2419
# Predefined converters to get proper values from store
2421
def bool_from_store(unicode_str):
2422
return ui.bool_from_string(unicode_str)
2425
def int_from_store(unicode_str):
2426
return int(unicode_str)
2429
def float_from_store(unicode_str):
2430
return float(unicode_str)
2434
# Use a an empty dict to initialize an empty configobj avoiding all
2435
# parsing and encoding checks
2436
_list_converter_config = configobj.ConfigObj(
2437
{}, encoding='utf-8', list_values=True, interpolation=False)
2440
def list_from_store(unicode_str):
2441
if not isinstance(unicode_str, basestring):
2443
# Now inject our string directly as unicode. All callers got their value
2444
# from configobj, so values that need to be quoted are already properly
2446
_list_converter_config.reset()
2447
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2448
maybe_list = _list_converter_config['list']
2449
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2450
if isinstance(maybe_list, basestring):
2452
# A single value, most probably the user forgot (or didn't care to
2453
# add) the final ','
2456
# The empty string, convert to empty list
2459
# We rely on ConfigObj providing us with a list already
2464
class OptionRegistry(registry.Registry):
2465
"""Register config options by their name.
2467
This overrides ``registry.Registry`` to simplify registration by acquiring
2468
some information from the option object itself.
2471
def register(self, option):
2472
"""Register a new option to its name.
2474
:param option: The option to register. Its name is used as the key.
2476
super(OptionRegistry, self).register(option.name, option,
2479
def register_lazy(self, key, module_name, member_name):
2480
"""Register a new option to be loaded on request.
2482
:param key: the key to request the option later. Since the registration
2483
is lazy, it should be provided and match the option name.
2485
:param module_name: the python path to the module. Such as 'os.path'.
2487
:param member_name: the member of the module to return. If empty or
2488
None, get() will return the module itself.
2490
super(OptionRegistry, self).register_lazy(key,
2491
module_name, member_name)
2493
def get_help(self, key=None):
2494
"""Get the help text associated with the given key"""
2495
option = self.get(key)
2496
the_help = option.help
2497
if callable(the_help):
2498
return the_help(self, key)
2502
option_registry = OptionRegistry()
2505
# Registered options in lexicographical order
2507
option_registry.register(
2508
Option('bzr.workingtree.worth_saving_limit', default=10,
2509
from_unicode=int_from_store, invalid='warning',
2511
How many changes before saving the dirstate.
2513
-1 means that we will never rewrite the dirstate file for only
2514
stat-cache changes. Regardless of this setting, we will always rewrite
2515
the dirstate file if a file is added/removed/renamed/etc. This flag only
2516
affects the behavior of updating the dirstate file after we notice that
2517
a file has been touched.
2519
option_registry.register(
2520
Option('dirstate.fdatasync', default=True,
2521
from_unicode=bool_from_store,
2523
Flush dirstate changes onto physical disk?
2525
If true (default), working tree metadata changes are flushed through the
2526
OS buffers to physical disk. This is somewhat slower, but means data
2527
should not be lost if the machine crashes. See also repository.fdatasync.
2529
option_registry.register(
2530
Option('debug_flags', default=[], from_unicode=list_from_store,
2531
help='Debug flags to activate.'))
2532
option_registry.register(
2533
Option('default_format', default='2a',
2534
help='Format used when creating branches.'))
2535
option_registry.register(
2536
Option('dpush_strict', default=None,
2537
from_unicode=bool_from_store,
2539
The default value for ``dpush --strict``.
2541
If present, defines the ``--strict`` option default value for checking
2542
uncommitted changes before pushing into a different VCS without any
2543
custom bzr metadata.
2545
option_registry.register(
2547
help='The command called to launch an editor to enter a message.'))
2548
option_registry.register(
2549
Option('ignore_missing_extensions', default=False,
2550
from_unicode=bool_from_store,
2552
Control the missing extensions warning display.
2554
The warning will not be emitted if set to True.
2556
option_registry.register(
2558
help='Language to translate messages into.'))
2559
option_registry.register(
2560
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2562
Steal locks that appears to be dead.
2564
If set to True, bzr will check if a lock is supposed to be held by an
2565
active process from the same user on the same machine. If the user and
2566
machine match, but no process with the given PID is active, then bzr
2567
will automatically break the stale lock, and create a new lock for
2569
Otherwise, bzr will prompt as normal to break the lock.
2571
option_registry.register(
2572
Option('output_encoding',
2573
help= 'Unicode encoding for output'
2574
' (terminal encoding if not specified).'))
2575
option_registry.register(
2576
Option('push_strict', default=None,
2577
from_unicode=bool_from_store,
2579
The default value for ``push --strict``.
2581
If present, defines the ``--strict`` option default value for checking
2582
uncommitted changes before sending a merge directive.
2584
option_registry.register(
2585
Option('repository.fdatasync', default=True,
2586
from_unicode=bool_from_store,
2588
Flush repository changes onto physical disk?
2590
If true (default), repository changes are flushed through the OS buffers
2591
to physical disk. This is somewhat slower, but means data should not be
2592
lost if the machine crashes. See also dirstate.fdatasync.
2594
option_registry.register(
2595
Option('send_strict', default=None,
2596
from_unicode=bool_from_store,
2598
The default value for ``send --strict``.
2600
If present, defines the ``--strict`` option default value for checking
2601
uncommitted changes before pushing.
2604
option_registry.register(
2605
Option('serve.client_timeout',
2606
default=300.0, from_unicode=float_from_store,
2607
help="If we wait for a new request from a client for more than"
2608
" X seconds, consider the client idle, and hangup."))
2120
option_registry = registry.Registry()
2123
option_registry.register(
2124
'editor', Option('editor'),
2125
help='The command called to launch an editor to enter a message.')
2611
2128
class Section(object):
3111
2591
if value is not None:
3113
# If the option is registered, it may provide additional info about
3116
opt = option_registry.get(name)
3120
def expand_and_convert(val):
3121
# This may need to be called twice if the value is None or ends up
3122
# being None during expansion or conversion.
3125
if isinstance(val, basestring):
3126
val = self._expand_options_in_string(val)
3128
trace.warning('Cannot expand "%s":'
3129
' %s does not support option expansion'
3130
% (name, type(val)))
3132
val = opt.convert_from_unicode(val)
3134
value = expand_and_convert(value)
3135
if opt is not None and value is None:
3136
2594
# If the option is registered, it may provide a default value
3137
value = opt.get_default()
3138
value = expand_and_convert(value)
3139
for hook in ConfigHooks['get']:
3140
hook(self, name, value)
3143
def expand_options(self, string, env=None):
3144
"""Expand option references in the string in the configuration context.
3146
:param string: The string containing option(s) to expand.
3148
:param env: An option dict defining additional configuration options or
3149
overriding existing ones.
3151
:returns: The expanded string.
3153
return self._expand_options_in_string(string, env)
3155
def _expand_options_in_string(self, string, env=None, _refs=None):
3156
"""Expand options in the string in the configuration context.
3158
:param string: The string to be expanded.
3160
:param env: An option dict defining additional configuration options or
3161
overriding existing ones.
3163
:param _refs: Private list (FIFO) containing the options being expanded
3166
:returns: The expanded string.
3169
# Not much to expand there
3172
# What references are currently resolved (to detect loops)
3175
# We need to iterate until no more refs appear ({{foo}} will need two
3176
# iterations for example).
3178
raw_chunks = Stack._option_ref_re.split(result)
3179
if len(raw_chunks) == 1:
3180
# Shorcut the trivial case: no refs
3183
# Split will isolate refs so that every other chunk is a ref
3184
chunk_is_ref = False
3185
for chunk in raw_chunks:
3186
if not chunk_is_ref:
3187
chunks.append(chunk)
3192
raise errors.OptionExpansionLoop(string, _refs)
3194
value = self._expand_option(name, env, _refs)
3196
raise errors.ExpandingUnknownOption(name, string)
3197
chunks.append(value)
3199
chunk_is_ref = False
3200
result = ''.join(chunks)
3203
def _expand_option(self, name, env, _refs):
3204
if env is not None and name in env:
3205
# Special case, values provided in env takes precedence over
3209
# FIXME: This is a limited implementation, what we really need is a
3210
# way to query the bzr config for the value of an option,
3211
# respecting the scope rules (That is, once we implement fallback
3212
# configs, getting the option value should restart from the top
3213
# config, not the current one) -- vila 20101222
3214
value = self.get(name, expand=False)
3215
value = self._expand_options_in_string(value, env, _refs)
2596
opt = option_registry.get(name)
2601
value = opt.get_default()
3218
2604
def _get_mutable_section(self):