1508
2256
configobj[name] = value
1510
2258
configobj.setdefault(section, {})[name] = value
2259
for hook in OldConfigHooks['set']:
2260
hook(self, name, value)
2261
self._set_configobj(configobj)
2263
def remove_option(self, option_name, section_name=None):
2264
configobj = self._get_configobj()
2265
if section_name is None:
2266
del configobj[option_name]
2268
del configobj[section_name][option_name]
2269
for hook in OldConfigHooks['remove']:
2270
hook(self, option_name)
1511
2271
self._set_configobj(configobj)
1513
2273
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2275
f = StringIO(self._transport.get_bytes(self._filename))
2276
for hook in OldConfigHooks['load']:
1516
2279
except errors.NoSuchFile:
1517
2280
return StringIO()
2281
except errors.PermissionDenied, e:
2282
trace.warning("Permission denied while trying to open "
2283
"configuration file %s.", urlutils.unescape_for_display(
2284
urlutils.join(self._transport.base, self._filename), "utf-8"))
2287
def _external_url(self):
2288
return urlutils.join(self._transport.external_url(), self._filename)
1519
2290
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2291
f = self._get_config_file()
2294
conf = ConfigObj(f, encoding='utf-8')
2295
except configobj.ConfigObjError, e:
2296
raise errors.ParseConfigError(e.errors, self._external_url())
2297
except UnicodeDecodeError:
2298
raise errors.ConfigContentError(self._external_url())
1522
2303
def _set_configobj(self, configobj):
1523
2304
out_file = StringIO()
1524
2305
configobj.write(out_file)
1525
2306
out_file.seek(0)
1526
2307
self._transport.put_file(self._filename, out_file)
2308
for hook in OldConfigHooks['save']:
2312
class Option(object):
2313
"""An option definition.
2315
The option *values* are stored in config files and found in sections.
2317
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.
2322
def __init__(self, name, override_from_env=None,
2323
default=None, default_from_env=None,
2324
help=None, from_unicode=None, invalid=None, unquote=True):
2325
"""Build an option definition.
2327
:param name: the name used to refer to the option.
2329
:param override_from_env: A list of environment variables which can
2330
provide override any configuration setting.
2332
:param default: the default value to use when none exist in the config
2333
stores. This is either a string that ``from_unicode`` will convert
2334
into the proper type, a callable returning a unicode string so that
2335
``from_unicode`` can be used on the return value, or a python
2336
object that can be stringified (so only the empty list is supported
2339
:param default_from_env: A list of environment variables which can
2340
provide a default value. 'default' will be used only if none of the
2341
variables specified here are set in the environment.
2343
:param help: a doc string to explain the option to the user.
2345
:param from_unicode: a callable to convert the unicode string
2346
representing the option value in a store. This is not called for
2349
:param invalid: the action to be taken when an invalid value is
2350
encountered in a store. This is called only when from_unicode is
2351
invoked to convert a string and returns None or raise ValueError or
2352
TypeError. Accepted values are: None (ignore invalid values),
2353
'warning' (emit a warning), 'error' (emit an error message and
2356
:param unquote: should the unicode value be unquoted before conversion.
2357
This should be used only when the store providing the values cannot
2358
safely unquote them (see http://pad.lv/906897). It is provided so
2359
daughter classes can handle the quoting themselves.
2361
if override_from_env is None:
2362
override_from_env = []
2363
if default_from_env is None:
2364
default_from_env = []
2366
self.override_from_env = override_from_env
2367
# Convert the default value to a unicode string so all values are
2368
# strings internally before conversion (via from_unicode) is attempted.
2371
elif isinstance(default, list):
2372
# Only the empty list is supported
2374
raise AssertionError(
2375
'Only empty lists are supported as default values')
2377
elif isinstance(default, (str, unicode, bool, int, float)):
2378
# Rely on python to convert strings, booleans and integers
2379
self.default = u'%s' % (default,)
2380
elif callable(default):
2381
self.default = default
2383
# other python objects are not expected
2384
raise AssertionError('%r is not supported as a default value'
2386
self.default_from_env = default_from_env
2388
self.from_unicode = from_unicode
2389
self.unquote = unquote
2390
if invalid and invalid not in ('warning', 'error'):
2391
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2392
self.invalid = invalid
2394
def convert_from_unicode(self, store, unicode_value):
2395
if self.unquote and store is not None and unicode_value is not None:
2396
unicode_value = store.unquote(unicode_value)
2397
if self.from_unicode is None or unicode_value is None:
2398
# Don't convert or nothing to convert
2399
return unicode_value
2401
converted = self.from_unicode(unicode_value)
2402
except (ValueError, TypeError):
2403
# Invalid values are ignored
2405
if converted is None and self.invalid is not None:
2406
# The conversion failed
2407
if self.invalid == 'warning':
2408
trace.warning('Value "%s" is not valid for "%s"',
2409
unicode_value, self.name)
2410
elif self.invalid == 'error':
2411
raise errors.ConfigOptionValueError(self.name, unicode_value)
2414
def get_override(self):
2416
for var in self.override_from_env:
2418
# If the env variable is defined, its value takes precedence
2419
value = os.environ[var].decode(osutils.get_user_encoding())
2425
def get_default(self):
2427
for var in self.default_from_env:
2429
# If the env variable is defined, its value is the default one
2430
value = os.environ[var].decode(osutils.get_user_encoding())
2435
# Otherwise, fallback to the value defined at registration
2436
if callable(self.default):
2437
value = self.default()
2438
if not isinstance(value, unicode):
2439
raise AssertionError(
2440
'Callable default values should be unicode')
2442
value = self.default
2445
def get_help_topic(self):
2448
def get_help_text(self, additional_see_also=None, plain=True):
2450
from bzrlib import help_topics
2451
result += help_topics._format_see_also(additional_see_also)
2453
result = help_topics.help_as_plain_text(result)
2457
# Predefined converters to get proper values from store
2459
def bool_from_store(unicode_str):
2460
return ui.bool_from_string(unicode_str)
2463
def int_from_store(unicode_str):
2464
return int(unicode_str)
2467
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2469
def int_SI_from_store(unicode_str):
2470
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2472
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2473
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2476
:return Integer, expanded to its base-10 value if a proper SI unit is
2477
found, None otherwise.
2479
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2480
p = re.compile(regexp, re.IGNORECASE)
2481
m = p.match(unicode_str)
2484
val, _, unit = m.groups()
2488
coeff = _unit_suffixes[unit.upper()]
2490
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2495
def float_from_store(unicode_str):
2496
return float(unicode_str)
2499
# Use a an empty dict to initialize an empty configobj avoiding all
2500
# parsing and encoding checks
2501
_list_converter_config = configobj.ConfigObj(
2502
{}, encoding='utf-8', list_values=True, interpolation=False)
2505
class ListOption(Option):
2507
def __init__(self, name, default=None, default_from_env=None,
2508
help=None, invalid=None):
2509
"""A list Option definition.
2511
This overrides the base class so the conversion from a unicode string
2512
can take quoting into account.
2514
super(ListOption, self).__init__(
2515
name, default=default, default_from_env=default_from_env,
2516
from_unicode=self.from_unicode, help=help,
2517
invalid=invalid, unquote=False)
2519
def from_unicode(self, unicode_str):
2520
if not isinstance(unicode_str, basestring):
2522
# Now inject our string directly as unicode. All callers got their
2523
# value from configobj, so values that need to be quoted are already
2525
_list_converter_config.reset()
2526
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2527
maybe_list = _list_converter_config['list']
2528
if isinstance(maybe_list, basestring):
2530
# A single value, most probably the user forgot (or didn't care
2531
# to add) the final ','
2534
# The empty string, convert to empty list
2537
# We rely on ConfigObj providing us with a list already
2542
class OptionRegistry(registry.Registry):
2543
"""Register config options by their name.
2545
This overrides ``registry.Registry`` to simplify registration by acquiring
2546
some information from the option object itself.
2549
def register(self, option):
2550
"""Register a new option to its name.
2552
:param option: The option to register. Its name is used as the key.
2554
super(OptionRegistry, self).register(option.name, option,
2557
def register_lazy(self, key, module_name, member_name):
2558
"""Register a new option to be loaded on request.
2560
:param key: the key to request the option later. Since the registration
2561
is lazy, it should be provided and match the option name.
2563
:param module_name: the python path to the module. Such as 'os.path'.
2565
:param member_name: the member of the module to return. If empty or
2566
None, get() will return the module itself.
2568
super(OptionRegistry, self).register_lazy(key,
2569
module_name, member_name)
2571
def get_help(self, key=None):
2572
"""Get the help text associated with the given key"""
2573
option = self.get(key)
2574
the_help = option.help
2575
if callable(the_help):
2576
return the_help(self, key)
2580
option_registry = OptionRegistry()
2583
# Registered options in lexicographical order
2585
option_registry.register(
2586
Option('append_revisions_only',
2587
default=None, from_unicode=bool_from_store, invalid='warning',
2589
Whether to only append revisions to the mainline.
2591
If this is set to true, then it is not possible to change the
2592
existing mainline of the branch.
2594
option_registry.register(
2595
ListOption('acceptable_keys',
2598
List of GPG key patterns which are acceptable for verification.
2600
option_registry.register(
2601
Option('add.maximum_file_size',
2602
default=u'20MB', from_unicode=int_SI_from_store,
2604
Size above which files should be added manually.
2606
Files below this size are added automatically when using ``bzr add`` without
2609
A negative value means disable the size check.
2611
option_registry.register(
2613
default=None, from_unicode=bool_from_store,
2615
Is the branch bound to ``bound_location``.
2617
If set to "True", the branch should act as a checkout, and push each commit to
2618
the bound_location. This option is normally set by ``bind``/``unbind``.
2620
See also: bound_location.
2622
option_registry.register(
2623
Option('bound_location',
2626
The location that commits should go to when acting as a checkout.
2628
This option is normally set by ``bind``.
2632
option_registry.register(
2633
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2635
Whether revisions associated with tags should be fetched.
2637
option_registry.register(
2638
Option('bzr.workingtree.worth_saving_limit', default=10,
2639
from_unicode=int_from_store, invalid='warning',
2641
How many changes before saving the dirstate.
2643
-1 means that we will never rewrite the dirstate file for only
2644
stat-cache changes. Regardless of this setting, we will always rewrite
2645
the dirstate file if a file is added/removed/renamed/etc. This flag only
2646
affects the behavior of updating the dirstate file after we notice that
2647
a file has been touched.
2649
option_registry.register(
2650
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2651
from_unicode=signature_policy_from_unicode,
2653
GPG checking policy.
2655
Possible values: require, ignore, check-available (default)
2657
this option will control whether bzr will require good gpg
2658
signatures, ignore them, or check them if they are
2661
option_registry.register(
2662
Option('child_submit_format',
2663
help='''The preferred format of submissions to this branch.'''))
2664
option_registry.register(
2665
Option('child_submit_to',
2666
help='''Where submissions to this branch are mailed to.'''))
2667
option_registry.register(
2668
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2669
from_unicode=signing_policy_from_unicode,
2673
Possible values: always, never, when-required (default)
2675
This option controls whether bzr will always create
2676
gpg signatures or not on commits.
2678
option_registry.register(
2679
Option('dirstate.fdatasync', default=True,
2680
from_unicode=bool_from_store,
2682
Flush dirstate changes onto physical disk?
2684
If true (default), working tree metadata changes are flushed through the
2685
OS buffers to physical disk. This is somewhat slower, but means data
2686
should not be lost if the machine crashes. See also repository.fdatasync.
2688
option_registry.register(
2689
ListOption('debug_flags', default=[],
2690
help='Debug flags to activate.'))
2691
option_registry.register(
2692
Option('default_format', default='2a',
2693
help='Format used when creating branches.'))
2694
option_registry.register(
2695
Option('dpush_strict', default=None,
2696
from_unicode=bool_from_store,
2698
The default value for ``dpush --strict``.
2700
If present, defines the ``--strict`` option default value for checking
2701
uncommitted changes before pushing into a different VCS without any
2702
custom bzr metadata.
2704
option_registry.register(
2706
help='The command called to launch an editor to enter a message.'))
2707
option_registry.register(
2708
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2709
help='The users identity'))
2710
option_registry.register(
2711
Option('gpg_signing_command',
2714
Program to use use for creating signatures.
2716
This should support at least the -u and --clearsign options.
2718
option_registry.register(
2719
Option('gpg_signing_key',
2722
GPG key to use for signing.
2724
This defaults to the first key associated with the users email.
2726
option_registry.register(
2727
Option('ignore_missing_extensions', default=False,
2728
from_unicode=bool_from_store,
2730
Control the missing extensions warning display.
2732
The warning will not be emitted if set to True.
2734
option_registry.register(
2736
help='Language to translate messages into.'))
2737
option_registry.register(
2738
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2740
Steal locks that appears to be dead.
2742
If set to True, bzr will check if a lock is supposed to be held by an
2743
active process from the same user on the same machine. If the user and
2744
machine match, but no process with the given PID is active, then bzr
2745
will automatically break the stale lock, and create a new lock for
2747
Otherwise, bzr will prompt as normal to break the lock.
2749
option_registry.register(
2750
Option('log_format', default='long',
2752
Log format to use when displaying revisions.
2754
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2755
may be provided by plugins.
2757
option_registry.register(
2758
Option('output_encoding',
2759
help= 'Unicode encoding for output'
2760
' (terminal encoding if not specified).'))
2761
option_registry.register(
2762
Option('parent_location',
2765
The location of the default branch for pull or merge.
2767
This option is normally set when creating a branch, the first ``pull`` or by
2768
``pull --remember``.
2770
option_registry.register(
2771
Option('post_commit', default=None,
2773
Post commit functions.
2775
An ordered list of python functions to call, separated by spaces.
2777
Each function takes branch, rev_id as parameters.
2779
option_registry.register(
2780
Option('public_branch',
2783
A publically-accessible version of this branch.
2785
This implies that the branch setting this option is not publically-accessible.
2786
Used and set by ``bzr send``.
2788
option_registry.register(
2789
Option('push_location',
2792
The location of the default branch for push.
2794
This option is normally set by the first ``push`` or ``push --remember``.
2796
option_registry.register(
2797
Option('push_strict', default=None,
2798
from_unicode=bool_from_store,
2800
The default value for ``push --strict``.
2802
If present, defines the ``--strict`` option default value for checking
2803
uncommitted changes before sending a merge directive.
2805
option_registry.register(
2806
Option('repository.fdatasync', default=True,
2807
from_unicode=bool_from_store,
2809
Flush repository changes onto physical disk?
2811
If true (default), repository changes are flushed through the OS buffers
2812
to physical disk. This is somewhat slower, but means data should not be
2813
lost if the machine crashes. See also dirstate.fdatasync.
2815
option_registry.register_lazy('smtp_server',
2816
'bzrlib.smtp_connection', 'smtp_server')
2817
option_registry.register_lazy('smtp_password',
2818
'bzrlib.smtp_connection', 'smtp_password')
2819
option_registry.register_lazy('smtp_username',
2820
'bzrlib.smtp_connection', 'smtp_username')
2821
option_registry.register(
2822
Option('selftest.timeout',
2824
from_unicode=int_from_store,
2825
help='Abort selftest if one test takes longer than this many seconds',
2828
option_registry.register(
2829
Option('send_strict', default=None,
2830
from_unicode=bool_from_store,
2832
The default value for ``send --strict``.
2834
If present, defines the ``--strict`` option default value for checking
2835
uncommitted changes before sending a bundle.
2838
option_registry.register(
2839
Option('serve.client_timeout',
2840
default=300.0, from_unicode=float_from_store,
2841
help="If we wait for a new request from a client for more than"
2842
" X seconds, consider the client idle, and hangup."))
2843
option_registry.register(
2844
Option('stacked_on_location',
2846
help="""The location where this branch is stacked on."""))
2847
option_registry.register(
2848
Option('submit_branch',
2851
The branch you intend to submit your current work to.
2853
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2854
by the ``submit:`` revision spec.
2856
option_registry.register(
2858
help='''Where submissions from this branch are mailed to.'''))
2860
option_registry.register_lazy('ssl.ca_certs',
2861
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2863
option_registry.register_lazy('ssl.cert_reqs',
2864
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2868
class Section(object):
2869
"""A section defines a dict of option name => value.
2871
This is merely a read-only dict which can add some knowledge about the
2872
options. It is *not* a python dict object though and doesn't try to mimic
2876
def __init__(self, section_id, options):
2877
self.id = section_id
2878
# We re-use the dict-like object received
2879
self.options = options
2881
def get(self, name, default=None, expand=True):
2882
return self.options.get(name, default)
2884
def iter_option_names(self):
2885
for k in self.options.iterkeys():
2889
# Mostly for debugging use
2890
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2893
_NewlyCreatedOption = object()
2894
"""Was the option created during the MutableSection lifetime"""
2895
_DeletedOption = object()
2896
"""Was the option deleted during the MutableSection lifetime"""
2899
class MutableSection(Section):
2900
"""A section allowing changes and keeping track of the original values."""
2902
def __init__(self, section_id, options):
2903
super(MutableSection, self).__init__(section_id, options)
2904
self.reset_changes()
2906
def set(self, name, value):
2907
if name not in self.options:
2908
# This is a new option
2909
self.orig[name] = _NewlyCreatedOption
2910
elif name not in self.orig:
2911
self.orig[name] = self.get(name, None)
2912
self.options[name] = value
2914
def remove(self, name):
2915
if name not in self.orig:
2916
self.orig[name] = self.get(name, None)
2917
del self.options[name]
2919
def reset_changes(self):
2922
def apply_changes(self, dirty, store):
2923
"""Apply option value changes.
2925
``self`` has been reloaded from the persistent storage. ``dirty``
2926
contains the changes made since the previous loading.
2928
:param dirty: the mutable section containing the changes.
2930
:param store: the store containing the section
2932
for k, expected in dirty.orig.iteritems():
2933
actual = dirty.get(k, _DeletedOption)
2934
reloaded = self.get(k, _NewlyCreatedOption)
2935
if actual is _DeletedOption:
2936
if k in self.options:
2940
# Report concurrent updates in an ad-hoc way. This should only
2941
# occurs when different processes try to update the same option
2942
# which is not supported (as in: the config framework is not meant
2943
# to be used a sharing mechanism).
2944
if expected != reloaded:
2945
if actual is _DeletedOption:
2946
actual = '<DELETED>'
2947
if reloaded is _NewlyCreatedOption:
2948
reloaded = '<CREATED>'
2949
if expected is _NewlyCreatedOption:
2950
expected = '<CREATED>'
2951
# Someone changed the value since we get it from the persistent
2953
trace.warning(gettext(
2954
"Option {0} in section {1} of {2} was changed"
2955
" from {3} to {4}. The {5} value will be saved.".format(
2956
k, self.id, store.external_url(), expected,
2958
# No need to keep track of these changes
2959
self.reset_changes()
2962
class Store(object):
2963
"""Abstract interface to persistent storage for configuration options."""
2965
readonly_section_class = Section
2966
mutable_section_class = MutableSection
2969
# Which sections need to be saved
2970
self.dirty_sections = []
2972
def is_loaded(self):
2973
"""Returns True if the Store has been loaded.
2975
This is used to implement lazy loading and ensure the persistent
2976
storage is queried only when needed.
2978
raise NotImplementedError(self.is_loaded)
2981
"""Loads the Store from persistent storage."""
2982
raise NotImplementedError(self.load)
2984
def _load_from_string(self, bytes):
2985
"""Create a store from a string in configobj syntax.
2987
:param bytes: A string representing the file content.
2989
raise NotImplementedError(self._load_from_string)
2992
"""Unloads the Store.
2994
This should make is_loaded() return False. This is used when the caller
2995
knows that the persistent storage has changed or may have change since
2998
raise NotImplementedError(self.unload)
3000
def quote(self, value):
3001
"""Quote a configuration option value for storing purposes.
3003
This allows Stacks to present values as they will be stored.
3007
def unquote(self, value):
3008
"""Unquote a configuration option value into unicode.
3010
The received value is quoted as stored.
3015
"""Saves the Store to persistent storage."""
3016
raise NotImplementedError(self.save)
3018
def _need_saving(self):
3019
for s in self.dirty_sections:
3021
# At least one dirty section contains a modification
3025
def apply_changes(self, dirty_sections):
3026
"""Apply changes from dirty sections while checking for coherency.
3028
The Store content is discarded and reloaded from persistent storage to
3029
acquire up-to-date values.
3031
Dirty sections are MutableSection which kept track of the value they
3032
are expected to update.
3034
# We need an up-to-date version from the persistent storage, unload the
3035
# store. The reload will occur when needed (triggered by the first
3036
# get_mutable_section() call below.
3038
# Apply the changes from the preserved dirty sections
3039
for dirty in dirty_sections:
3040
clean = self.get_mutable_section(dirty.id)
3041
clean.apply_changes(dirty, self)
3042
# Everything is clean now
3043
self.dirty_sections = []
3045
def save_changes(self):
3046
"""Saves the Store to persistent storage if changes occurred.
3048
Apply the changes recorded in the mutable sections to a store content
3049
refreshed from persistent storage.
3051
raise NotImplementedError(self.save_changes)
3053
def external_url(self):
3054
raise NotImplementedError(self.external_url)
3056
def get_sections(self):
3057
"""Returns an ordered iterable of existing sections.
3059
:returns: An iterable of (store, section).
3061
raise NotImplementedError(self.get_sections)
3063
def get_mutable_section(self, section_id=None):
3064
"""Returns the specified mutable section.
3066
:param section_id: The section identifier
3068
raise NotImplementedError(self.get_mutable_section)
3071
# Mostly for debugging use
3072
return "<config.%s(%s)>" % (self.__class__.__name__,
3073
self.external_url())
3076
class CommandLineStore(Store):
3077
"A store to carry command line overrides for the config options."""
3079
def __init__(self, opts=None):
3080
super(CommandLineStore, self).__init__()
3087
# The dict should be cleared but not replaced so it can be shared.
3088
self.options.clear()
3090
def _from_cmdline(self, overrides):
3091
# Reset before accepting new definitions
3093
for over in overrides:
3095
name, value = over.split('=', 1)
3097
raise errors.BzrCommandError(
3098
gettext("Invalid '%s', should be of the form 'name=value'")
3100
self.options[name] = value
3102
def external_url(self):
3103
# Not an url but it makes debugging easier and is never needed
3107
def get_sections(self):
3108
yield self, self.readonly_section_class(None, self.options)
3111
class IniFileStore(Store):
3112
"""A config Store using ConfigObj for storage.
3114
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3115
serialize/deserialize the config file.
3119
"""A config Store using ConfigObj for storage.
3121
super(IniFileStore, self).__init__()
3122
self._config_obj = None
3124
def is_loaded(self):
3125
return self._config_obj != None
3128
self._config_obj = None
3129
self.dirty_sections = []
3131
def _load_content(self):
3132
"""Load the config file bytes.
3134
This should be provided by subclasses
3136
:return: Byte string
3138
raise NotImplementedError(self._load_content)
3140
def _save_content(self, content):
3141
"""Save the config file bytes.
3143
This should be provided by subclasses
3145
:param content: Config file bytes to write
3147
raise NotImplementedError(self._save_content)
3150
"""Load the store from the associated file."""
3151
if self.is_loaded():
3153
content = self._load_content()
3154
self._load_from_string(content)
3155
for hook in ConfigHooks['load']:
3158
def _load_from_string(self, bytes):
3159
"""Create a config store from a string.
3161
:param bytes: A string representing the file content.
3163
if self.is_loaded():
3164
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3165
co_input = StringIO(bytes)
3167
# The config files are always stored utf8-encoded
3168
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3170
except configobj.ConfigObjError, e:
3171
self._config_obj = None
3172
raise errors.ParseConfigError(e.errors, self.external_url())
3173
except UnicodeDecodeError:
3174
raise errors.ConfigContentError(self.external_url())
3176
def save_changes(self):
3177
if not self.is_loaded():
3180
if not self._need_saving():
3182
# Preserve the current version
3183
current = self._config_obj
3184
dirty_sections = list(self.dirty_sections)
3185
self.apply_changes(dirty_sections)
3186
# Save to the persistent storage
3190
if not self.is_loaded():
3194
self._config_obj.write(out)
3195
self._save_content(out.getvalue())
3196
for hook in ConfigHooks['save']:
3199
def get_sections(self):
3200
"""Get the configobj section in the file order.
3202
:returns: An iterable of (store, section).
3204
# We need a loaded store
3207
except (errors.NoSuchFile, errors.PermissionDenied):
3208
# If the file can't be read, there is no sections
3210
cobj = self._config_obj
3212
yield self, self.readonly_section_class(None, cobj)
3213
for section_name in cobj.sections:
3215
self.readonly_section_class(section_name,
3216
cobj[section_name]))
3218
def get_mutable_section(self, section_id=None):
3219
# We need a loaded store
3222
except errors.NoSuchFile:
3223
# The file doesn't exist, let's pretend it was empty
3224
self._load_from_string('')
3225
if section_id is None:
3226
section = self._config_obj
3228
section = self._config_obj.setdefault(section_id, {})
3229
mutable_section = self.mutable_section_class(section_id, section)
3230
# All mutable sections can become dirty
3231
self.dirty_sections.append(mutable_section)
3232
return mutable_section
3234
def quote(self, value):
3236
# configobj conflates automagical list values and quoting
3237
self._config_obj.list_values = True
3238
return self._config_obj._quote(value)
3240
self._config_obj.list_values = False
3242
def unquote(self, value):
3243
if value and isinstance(value, basestring):
3244
# _unquote doesn't handle None nor empty strings nor anything that
3245
# is not a string, really.
3246
value = self._config_obj._unquote(value)
3249
def external_url(self):
3250
# Since an IniFileStore can be used without a file (at least in tests),
3251
# it's better to provide something than raising a NotImplementedError.
3252
# All daughter classes are supposed to provide an implementation
3254
return 'In-Process Store, no URL'
3256
class TransportIniFileStore(IniFileStore):
3257
"""IniFileStore that loads files from a transport.
3259
:ivar transport: The transport object where the config file is located.
3261
:ivar file_name: The config file basename in the transport directory.
3264
def __init__(self, transport, file_name):
3265
"""A Store using a ini file on a Transport
3267
:param transport: The transport object where the config file is located.
3268
:param file_name: The config file basename in the transport directory.
3270
super(TransportIniFileStore, self).__init__()
3271
self.transport = transport
3272
self.file_name = file_name
3274
def _load_content(self):
3276
return self.transport.get_bytes(self.file_name)
3277
except errors.PermissionDenied:
3278
trace.warning("Permission denied while trying to load "
3279
"configuration store %s.", self.external_url())
3282
def _save_content(self, content):
3283
self.transport.put_bytes(self.file_name, content)
3285
def external_url(self):
3286
# FIXME: external_url should really accepts an optional relpath
3287
# parameter (bug #750169) :-/ -- vila 2011-04-04
3288
# The following will do in the interim but maybe we don't want to
3289
# expose a path here but rather a config ID and its associated
3290
# object </hand wawe>.
3291
return urlutils.join(self.transport.external_url(), self.file_name)
3294
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3295
# unlockable stores for use with objects that can already ensure the locking
3296
# (think branches). If different stores (not based on ConfigObj) are created,
3297
# they may face the same issue.
3300
class LockableIniFileStore(TransportIniFileStore):
3301
"""A ConfigObjStore using locks on save to ensure store integrity."""
3303
def __init__(self, transport, file_name, lock_dir_name=None):
3304
"""A config Store using ConfigObj for storage.
3306
:param transport: The transport object where the config file is located.
3308
:param file_name: The config file basename in the transport directory.
3310
if lock_dir_name is None:
3311
lock_dir_name = 'lock'
3312
self.lock_dir_name = lock_dir_name
3313
super(LockableIniFileStore, self).__init__(transport, file_name)
3314
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3316
def lock_write(self, token=None):
3317
"""Takes a write lock in the directory containing the config file.
3319
If the directory doesn't exist it is created.
3321
# FIXME: This doesn't check the ownership of the created directories as
3322
# ensure_config_dir_exists does. It should if the transport is local
3323
# -- vila 2011-04-06
3324
self.transport.create_prefix()
3325
return self._lock.lock_write(token)
3330
def break_lock(self):
3331
self._lock.break_lock()
3335
# We need to be able to override the undecorated implementation
3336
self.save_without_locking()
3338
def save_without_locking(self):
3339
super(LockableIniFileStore, self).save()
3342
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3343
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3344
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3346
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3347
# functions or a registry will make it easier and clearer for tests, focusing
3348
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3349
# on a poolie's remark)
3350
class GlobalStore(LockableIniFileStore):
3352
def __init__(self, possible_transports=None):
3353
t = transport.get_transport_from_path(
3354
config_dir(), possible_transports=possible_transports)
3355
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3359
class LocationStore(LockableIniFileStore):
3361
def __init__(self, possible_transports=None):
3362
t = transport.get_transport_from_path(
3363
config_dir(), possible_transports=possible_transports)
3364
super(LocationStore, self).__init__(t, 'locations.conf')
3365
self.id = 'locations'
3368
class BranchStore(TransportIniFileStore):
3370
def __init__(self, branch):
3371
super(BranchStore, self).__init__(branch.control_transport,
3373
self.branch = branch
3376
def lock_write(self, token=None):
3377
return self.branch.lock_write(token)
3380
return self.branch.unlock()
3384
# We need to be able to override the undecorated implementation
3385
self.save_without_locking()
3387
def save_without_locking(self):
3388
super(BranchStore, self).save()
3391
class ControlStore(LockableIniFileStore):
3393
def __init__(self, bzrdir):
3394
super(ControlStore, self).__init__(bzrdir.transport,
3396
lock_dir_name='branch_lock')
3400
class SectionMatcher(object):
3401
"""Select sections into a given Store.
3403
This is intended to be used to postpone getting an iterable of sections
3407
def __init__(self, store):
3410
def get_sections(self):
3411
# This is where we require loading the store so we can see all defined
3413
sections = self.store.get_sections()
3414
# Walk the revisions in the order provided
3415
for store, s in sections:
3419
def match(self, section):
3420
"""Does the proposed section match.
3422
:param section: A Section object.
3424
:returns: True if the section matches, False otherwise.
3426
raise NotImplementedError(self.match)
3429
class NameMatcher(SectionMatcher):
3431
def __init__(self, store, section_id):
3432
super(NameMatcher, self).__init__(store)
3433
self.section_id = section_id
3435
def match(self, section):
3436
return section.id == self.section_id
3439
class LocationSection(Section):
3441
def __init__(self, section, extra_path):
3442
super(LocationSection, self).__init__(section.id, section.options)
3443
self.extra_path = extra_path
3444
self.locals = {'relpath': extra_path,
3445
'basename': urlutils.basename(extra_path)}
3447
def get(self, name, default=None, expand=True):
3448
value = super(LocationSection, self).get(name, default)
3449
if value is not None and expand:
3450
policy_name = self.get(name + ':policy', None)
3451
policy = _policy_value.get(policy_name, POLICY_NONE)
3452
if policy == POLICY_APPENDPATH:
3453
value = urlutils.join(value, self.extra_path)
3454
# expand section local options right now (since POLICY_APPENDPATH
3455
# will never add options references, it's ok to expand after it).
3457
for is_ref, chunk in iter_option_refs(value):
3459
chunks.append(chunk)
3462
if ref in self.locals:
3463
chunks.append(self.locals[ref])
3465
chunks.append(chunk)
3466
value = ''.join(chunks)
3470
class StartingPathMatcher(SectionMatcher):
3471
"""Select sections for a given location respecting the Store order."""
3473
# FIXME: Both local paths and urls can be used for section names as well as
3474
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3475
# inherited the fuzziness from the previous ``LocationConfig``
3476
# implementation. We probably need to revisit which encoding is allowed for
3477
# both ``location`` and section names and how we normalize
3478
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3479
# related too. -- vila 2012-01-04
3481
def __init__(self, store, location):
3482
super(StartingPathMatcher, self).__init__(store)
3483
if location.startswith('file://'):
3484
location = urlutils.local_path_from_url(location)
3485
self.location = location
3487
def get_sections(self):
3488
"""Get all sections matching ``location`` in the store.
3490
The most generic sections are described first in the store, then more
3491
specific ones can be provided for reduced scopes.
3493
The returned section are therefore returned in the reversed order so
3494
the most specific ones can be found first.
3496
location_parts = self.location.rstrip('/').split('/')
3499
# Later sections are more specific, they should be returned first
3500
for _, section in reversed(list(store.get_sections())):
3501
if section.id is None:
3502
# The no-name section is always included if present
3503
yield store, LocationSection(section, self.location)
3505
section_path = section.id
3506
if section_path.startswith('file://'):
3507
# the location is already a local path or URL, convert the
3508
# section id to the same format
3509
section_path = urlutils.local_path_from_url(section_path)
3510
if (self.location.startswith(section_path)
3511
or fnmatch.fnmatch(self.location, section_path)):
3512
section_parts = section_path.rstrip('/').split('/')
3513
extra_path = '/'.join(location_parts[len(section_parts):])
3514
yield store, LocationSection(section, extra_path)
3517
class LocationMatcher(SectionMatcher):
3519
def __init__(self, store, location):
3520
super(LocationMatcher, self).__init__(store)
3521
if location.startswith('file://'):
3522
location = urlutils.local_path_from_url(location)
3523
self.location = location
3525
def _get_matching_sections(self):
3526
"""Get all sections matching ``location``."""
3527
# We slightly diverge from LocalConfig here by allowing the no-name
3528
# section as the most generic one and the lower priority.
3529
no_name_section = None
3531
# Filter out the no_name_section so _iter_for_location_by_parts can be
3532
# used (it assumes all sections have a name).
3533
for _, section in self.store.get_sections():
3534
if section.id is None:
3535
no_name_section = section
3537
all_sections.append(section)
3538
# Unfortunately _iter_for_location_by_parts deals with section names so
3539
# we have to resync.
3540
filtered_sections = _iter_for_location_by_parts(
3541
[s.id for s in all_sections], self.location)
3542
iter_all_sections = iter(all_sections)
3543
matching_sections = []
3544
if no_name_section is not None:
3545
matching_sections.append(
3546
(0, LocationSection(no_name_section, self.location)))
3547
for section_id, extra_path, length in filtered_sections:
3548
# a section id is unique for a given store so it's safe to take the
3549
# first matching section while iterating. Also, all filtered
3550
# sections are part of 'all_sections' and will always be found
3553
section = iter_all_sections.next()
3554
if section_id == section.id:
3555
matching_sections.append(
3556
(length, LocationSection(section, extra_path)))
3558
return matching_sections
3560
def get_sections(self):
3561
# Override the default implementation as we want to change the order
3562
matching_sections = self._get_matching_sections()
3563
# We want the longest (aka more specific) locations first
3564
sections = sorted(matching_sections,
3565
key=lambda (length, section): (length, section.id),
3567
# Sections mentioning 'ignore_parents' restrict the selection
3568
for _, section in sections:
3569
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3570
ignore = section.get('ignore_parents', None)
3571
if ignore is not None:
3572
ignore = ui.bool_from_string(ignore)
3575
# Finally, we have a valid section
3576
yield self.store, section
3579
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3580
"""Describes an expandable option reference.
3582
We want to match the most embedded reference first.
3584
I.e. for '{{foo}}' we will get '{foo}',
3585
for '{bar{baz}}' we will get '{baz}'
3588
def iter_option_refs(string):
3589
# Split isolate refs so every other chunk is a ref
3591
for chunk in _option_ref_re.split(string):
3596
class Stack(object):
3597
"""A stack of configurations where an option can be defined"""
3599
def __init__(self, sections_def, store=None, mutable_section_id=None):
3600
"""Creates a stack of sections with an optional store for changes.
3602
:param sections_def: A list of Section or callables that returns an
3603
iterable of Section. This defines the Sections for the Stack and
3604
can be called repeatedly if needed.
3606
:param store: The optional Store where modifications will be
3607
recorded. If none is specified, no modifications can be done.
3609
:param mutable_section_id: The id of the MutableSection where changes
3610
are recorded. This requires the ``store`` parameter to be
3613
self.sections_def = sections_def
3615
self.mutable_section_id = mutable_section_id
3617
def get(self, name, expand=None):
3618
"""Return the *first* option value found in the sections.
3620
This is where we guarantee that sections coming from Store are loaded
3621
lazily: the loading is delayed until we need to either check that an
3622
option exists or get its value, which in turn may require to discover
3623
in which sections it can be defined. Both of these (section and option
3624
existence) require loading the store (even partially).
3626
:param name: The queried option.
3628
:param expand: Whether options references should be expanded.
3630
:returns: The value of the option.
3632
# FIXME: No caching of options nor sections yet -- vila 20110503
3634
expand = _get_expand_default_value()
3636
found_store = None # Where the option value has been found
3637
# If the option is registered, it may provide additional info about
3640
opt = option_registry.get(name)
3645
def expand_and_convert(val):
3646
# This may need to be called in different contexts if the value is
3647
# None or ends up being None during expansion or conversion.
3650
if isinstance(val, basestring):
3651
val = self._expand_options_in_string(val)
3653
trace.warning('Cannot expand "%s":'
3654
' %s does not support option expansion'
3655
% (name, type(val)))
3657
val = found_store.unquote(val)
3659
val = opt.convert_from_unicode(found_store, val)
3662
# First of all, check if the environment can override the configuration
3664
if opt is not None and opt.override_from_env:
3665
value = opt.get_override()
3666
value = expand_and_convert(value)
3668
# Ensuring lazy loading is achieved by delaying section matching
3669
# (which implies querying the persistent storage) until it can't be
3670
# avoided anymore by using callables to describe (possibly empty)
3672
for sections in self.sections_def:
3673
for store, section in sections():
3674
value = section.get(name)
3675
if value is not None:
3678
if value is not None:
3680
value = expand_and_convert(value)
3681
if opt is not None and value is None:
3682
# If the option is registered, it may provide a default value
3683
value = opt.get_default()
3684
value = expand_and_convert(value)
3685
for hook in ConfigHooks['get']:
3686
hook(self, name, value)
3689
def expand_options(self, string, env=None):
3690
"""Expand option references in the string in the configuration context.
3692
:param string: The string containing option(s) to expand.
3694
:param env: An option dict defining additional configuration options or
3695
overriding existing ones.
3697
:returns: The expanded string.
3699
return self._expand_options_in_string(string, env)
3701
def _expand_options_in_string(self, string, env=None, _refs=None):
3702
"""Expand options in the string in the configuration context.
3704
:param string: The string to be expanded.
3706
:param env: An option dict defining additional configuration options or
3707
overriding existing ones.
3709
:param _refs: Private list (FIFO) containing the options being expanded
3712
:returns: The expanded string.
3715
# Not much to expand there
3718
# What references are currently resolved (to detect loops)
3721
# We need to iterate until no more refs appear ({{foo}} will need two
3722
# iterations for example).
3727
for is_ref, chunk in iter_option_refs(result):
3729
chunks.append(chunk)
3734
raise errors.OptionExpansionLoop(string, _refs)
3736
value = self._expand_option(name, env, _refs)
3738
raise errors.ExpandingUnknownOption(name, string)
3739
chunks.append(value)
3741
result = ''.join(chunks)
3744
def _expand_option(self, name, env, _refs):
3745
if env is not None and name in env:
3746
# Special case, values provided in env takes precedence over
3750
value = self.get(name, expand=False)
3751
value = self._expand_options_in_string(value, env, _refs)
3754
def _get_mutable_section(self):
3755
"""Get the MutableSection for the Stack.
3757
This is where we guarantee that the mutable section is lazily loaded:
3758
this means we won't load the corresponding store before setting a value
3759
or deleting an option. In practice the store will often be loaded but
3760
this helps catching some programming errors.
3763
section = store.get_mutable_section(self.mutable_section_id)
3764
return store, section
3766
def set(self, name, value):
3767
"""Set a new value for the option."""
3768
store, section = self._get_mutable_section()
3769
section.set(name, store.quote(value))
3770
for hook in ConfigHooks['set']:
3771
hook(self, name, value)
3773
def remove(self, name):
3774
"""Remove an existing option."""
3775
_, section = self._get_mutable_section()
3776
section.remove(name)
3777
for hook in ConfigHooks['remove']:
3781
# Mostly for debugging use
3782
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3784
def _get_overrides(self):
3785
# Hack around library_state.initialize never called
3786
if bzrlib.global_state is not None:
3787
return bzrlib.global_state.cmdline_overrides.get_sections()
3791
class MemoryStack(Stack):
3792
"""A configuration stack defined from a string.
3794
This is mainly intended for tests and requires no disk resources.
3797
def __init__(self, content=None):
3798
"""Create an in-memory stack from a given content.
3800
It uses a single store based on configobj and support reading and
3803
:param content: The initial content of the store. If None, the store is
3804
not loaded and ``_load_from_string`` can and should be used if
3807
store = IniFileStore()
3808
if content is not None:
3809
store._load_from_string(content)
3810
super(MemoryStack, self).__init__(
3811
[store.get_sections], store)
3814
class _CompatibleStack(Stack):
3815
"""Place holder for compatibility with previous design.
3817
This is intended to ease the transition from the Config-based design to the
3818
Stack-based design and should not be used nor relied upon by plugins.
3820
One assumption made here is that the daughter classes will all use Stores
3821
derived from LockableIniFileStore).
3823
It implements set() and remove () by re-loading the store before applying
3824
the modification and saving it.
3826
The long term plan being to implement a single write by store to save
3827
all modifications, this class should not be used in the interim.
3830
def set(self, name, value):
3833
super(_CompatibleStack, self).set(name, value)
3834
# Force a write to persistent storage
3837
def remove(self, name):
3840
super(_CompatibleStack, self).remove(name)
3841
# Force a write to persistent storage
3845
class GlobalStack(_CompatibleStack):
3846
"""Global options only stack.
3848
The following sections are queried:
3850
* command-line overrides,
3852
* the 'DEFAULT' section in bazaar.conf
3854
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3859
gstore = GlobalStore()
3860
super(GlobalStack, self).__init__(
3861
[self._get_overrides,
3862
NameMatcher(gstore, 'DEFAULT').get_sections],
3863
gstore, mutable_section_id='DEFAULT')
3866
class LocationStack(_CompatibleStack):
3867
"""Per-location options falling back to global options stack.
3870
The following sections are queried:
3872
* command-line overrides,
3874
* the sections matching ``location`` in ``locations.conf``, the order being
3875
defined by the number of path components in the section glob, higher
3876
numbers first (from most specific section to most generic).
3878
* the 'DEFAULT' section in bazaar.conf
3880
This stack will use the ``location`` section in locations.conf as its
3884
def __init__(self, location):
3885
"""Make a new stack for a location and global configuration.
3887
:param location: A URL prefix to """
3888
lstore = LocationStore()
3889
if location.startswith('file://'):
3890
location = urlutils.local_path_from_url(location)
3891
gstore = GlobalStore()
3892
super(LocationStack, self).__init__(
3893
[self._get_overrides,
3894
LocationMatcher(lstore, location).get_sections,
3895
NameMatcher(gstore, 'DEFAULT').get_sections],
3896
lstore, mutable_section_id=location)
3899
class BranchStack(_CompatibleStack):
3900
"""Per-location options falling back to branch then global options stack.
3902
The following sections are queried:
3904
* command-line overrides,
3906
* the sections matching ``location`` in ``locations.conf``, the order being
3907
defined by the number of path components in the section glob, higher
3908
numbers first (from most specific section to most generic),
3910
* the no-name section in branch.conf,
3912
* the ``DEFAULT`` section in ``bazaar.conf``.
3914
This stack will use the no-name section in ``branch.conf`` as its
3918
def __init__(self, branch):
3919
lstore = LocationStore()
3920
bstore = branch._get_config_store()
3921
gstore = GlobalStore()
3922
super(BranchStack, self).__init__(
3923
[self._get_overrides,
3924
LocationMatcher(lstore, branch.base).get_sections,
3925
NameMatcher(bstore, None).get_sections,
3926
NameMatcher(gstore, 'DEFAULT').get_sections],
3928
self.branch = branch
3931
class RemoteControlStack(_CompatibleStack):
3932
"""Remote control-only options stack."""
3934
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3935
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3936
# control.conf and is used only for stack options.
3938
def __init__(self, bzrdir):
3939
cstore = bzrdir._get_config_store()
3940
super(RemoteControlStack, self).__init__(
3941
[NameMatcher(cstore, None).get_sections],
3943
self.bzrdir = bzrdir
3946
class BranchOnlyStack(_CompatibleStack):
3947
"""Branch-only options stack."""
3949
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3950
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3951
# -- vila 2011-12-16
3953
def __init__(self, branch):
3954
bstore = branch._get_config_store()
3955
super(BranchOnlyStack, self).__init__(
3956
[NameMatcher(bstore, None).get_sections],
3958
self.branch = branch
3961
# Use a an empty dict to initialize an empty configobj avoiding all
3962
# parsing and encoding checks
3963
_quoting_config = configobj.ConfigObj(
3964
{}, encoding='utf-8', interpolation=False, list_values=True)
3966
class cmd_config(commands.Command):
3967
__doc__ = """Display, set or remove a configuration option.
3969
Display the active value for a given option.
3971
If --all is specified, NAME is interpreted as a regular expression and all
3972
matching options are displayed mentioning their scope. The active value
3973
that bzr will take into account is the first one displayed for each option.
3975
If no NAME is given, --all .* is implied.
3977
Setting a value is achieved by using name=value without spaces. The value
3978
is set in the most relevant scope and can be checked by displaying the
3982
takes_args = ['name?']
3986
# FIXME: This should be a registry option so that plugins can register
3987
# their own config files (or not) and will also address
3988
# http://pad.lv/788991 -- vila 20101115
3989
commands.Option('scope', help='Reduce the scope to the specified'
3990
' configuration file.',
3992
commands.Option('all',
3993
help='Display all the defined values for the matching options.',
3995
commands.Option('remove', help='Remove the option from'
3996
' the configuration file.'),
3999
_see_also = ['configuration']
4001
@commands.display_command
4002
def run(self, name=None, all=False, directory=None, scope=None,
4004
if directory is None:
4006
directory = urlutils.normalize_url(directory)
4008
raise errors.BzrError(
4009
'--all and --remove are mutually exclusive.')
4011
# Delete the option in the given scope
4012
self._remove_config_option(name, directory, scope)
4014
# Defaults to all options
4015
self._show_matching_options('.*', directory, scope)
4018
name, value = name.split('=', 1)
4020
# Display the option(s) value(s)
4022
self._show_matching_options(name, directory, scope)
4024
self._show_value(name, directory, scope)
4027
raise errors.BzrError(
4028
'Only one option can be set.')
4029
# Set the option value
4030
self._set_config_option(name, value, directory, scope)
4032
def _get_stack(self, directory, scope=None):
4033
"""Get the configuration stack specified by ``directory`` and ``scope``.
4035
:param directory: Where the configurations are derived from.
4037
:param scope: A specific config to start from.
4039
# FIXME: scope should allow access to plugin-specific stacks (even
4040
# reduced to the plugin-specific store), related to
4041
# http://pad.lv/788991 -- vila 2011-11-15
4042
if scope is not None:
4043
if scope == 'bazaar':
4044
return GlobalStack()
4045
elif scope == 'locations':
4046
return LocationStack(directory)
4047
elif scope == 'branch':
4049
controldir.ControlDir.open_containing_tree_or_branch(
4051
return br.get_config_stack()
4052
raise errors.NoSuchConfig(scope)
4056
controldir.ControlDir.open_containing_tree_or_branch(
4058
return br.get_config_stack()
4059
except errors.NotBranchError:
4060
return LocationStack(directory)
4062
def _show_value(self, name, directory, scope):
4063
conf = self._get_stack(directory, scope)
4064
value = conf.get(name, expand=True)
4065
if value is not None:
4066
# Quote the value appropriately
4067
value = _quoting_config._quote(value)
4068
self.outf.write('%s\n' % (value,))
4070
raise errors.NoSuchConfigOption(name)
4072
def _show_matching_options(self, name, directory, scope):
4073
name = lazy_regex.lazy_compile(name)
4074
# We want any error in the regexp to be raised *now* so we need to
4075
# avoid the delay introduced by the lazy regexp. But, we still do
4076
# want the nicer errors raised by lazy_regex.
4077
name._compile_and_collapse()
4080
conf = self._get_stack(directory, scope)
4081
for sections in conf.sections_def:
4082
for store, section in sections():
4083
for oname in section.iter_option_names():
4084
if name.search(oname):
4085
if cur_store_id != store.id:
4086
# Explain where the options are defined
4087
self.outf.write('%s:\n' % (store.id,))
4088
cur_store_id = store.id
4090
if (section.id is not None
4091
and cur_section != section.id):
4092
# Display the section id as it appears in the store
4093
# (None doesn't appear by definition)
4094
self.outf.write(' [%s]\n' % (section.id,))
4095
cur_section = section.id
4096
value = section.get(oname, expand=False)
4097
# Since we don't use the stack, we need to restore a
4100
opt = option_registry.get(oname)
4101
value = opt.convert_from_unicode(store, value)
4103
value = store.unquote(value)
4104
value = _quoting_config._quote(value)
4105
self.outf.write(' %s = %s\n' % (oname, value))
4107
def _set_config_option(self, name, value, directory, scope):
4108
conf = self._get_stack(directory, scope)
4109
conf.set(name, value)
4111
def _remove_config_option(self, name, directory, scope):
4113
raise errors.BzrCommandError(
4114
'--remove expects an option to remove.')
4115
conf = self._get_stack(directory, scope)
4119
raise errors.NoSuchConfigOption(name)
4124
# We need adapters that can build a Store or a Stack in a test context. Test
4125
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4126
# themselves. The builder will receive a test instance and should return a
4127
# ready-to-use store or stack. Plugins that define new store/stacks can also
4128
# register themselves here to be tested against the tests defined in
4129
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4130
# for the same test.
4132
# The registered object should be a callable receiving a test instance
4133
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4135
test_store_builder_registry = registry.Registry()
4137
# The registered object should be a callable receiving a test instance
4138
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4140
test_stack_builder_registry = registry.Registry()