1508
2257
configobj[name] = value
1510
2259
configobj.setdefault(section, {})[name] = value
2260
for hook in OldConfigHooks['set']:
2261
hook(self, name, value)
2262
self._set_configobj(configobj)
2264
def remove_option(self, option_name, section_name=None):
2265
configobj = self._get_configobj()
2266
if section_name is None:
2267
del configobj[option_name]
2269
del configobj[section_name][option_name]
2270
for hook in OldConfigHooks['remove']:
2271
hook(self, option_name)
1511
2272
self._set_configobj(configobj)
1513
2274
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2276
f = StringIO(self._transport.get_bytes(self._filename))
2277
for hook in OldConfigHooks['load']:
1516
2280
except errors.NoSuchFile:
1517
2281
return StringIO()
2282
except errors.PermissionDenied, e:
2283
trace.warning("Permission denied while trying to open "
2284
"configuration file %s.", urlutils.unescape_for_display(
2285
urlutils.join(self._transport.base, self._filename), "utf-8"))
2288
def _external_url(self):
2289
return urlutils.join(self._transport.external_url(), self._filename)
1519
2291
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2292
f = self._get_config_file()
2295
conf = ConfigObj(f, encoding='utf-8')
2296
except configobj.ConfigObjError, e:
2297
raise errors.ParseConfigError(e.errors, self._external_url())
2298
except UnicodeDecodeError:
2299
raise errors.ConfigContentError(self._external_url())
1522
2304
def _set_configobj(self, configobj):
1523
2305
out_file = StringIO()
1524
2306
configobj.write(out_file)
1525
2307
out_file.seek(0)
1526
2308
self._transport.put_file(self._filename, out_file)
2309
for hook in OldConfigHooks['save']:
2313
class Option(object):
2314
"""An option definition.
2316
The option *values* are stored in config files and found in sections.
2318
Here we define various properties about the option itself, its default
2319
value, how to convert it from stores, what to do when invalid values are
2320
encoutered, in which config files it can be stored.
2323
def __init__(self, name, override_from_env=None,
2324
default=None, default_from_env=None,
2325
help=None, from_unicode=None, invalid=None, unquote=True):
2326
"""Build an option definition.
2328
:param name: the name used to refer to the option.
2330
:param override_from_env: A list of environment variables which can
2331
provide override any configuration setting.
2333
:param default: the default value to use when none exist in the config
2334
stores. This is either a string that ``from_unicode`` will convert
2335
into the proper type, a callable returning a unicode string so that
2336
``from_unicode`` can be used on the return value, or a python
2337
object that can be stringified (so only the empty list is supported
2340
:param default_from_env: A list of environment variables which can
2341
provide a default value. 'default' will be used only if none of the
2342
variables specified here are set in the environment.
2344
:param help: a doc string to explain the option to the user.
2346
:param from_unicode: a callable to convert the unicode string
2347
representing the option value in a store. This is not called for
2350
:param invalid: the action to be taken when an invalid value is
2351
encountered in a store. This is called only when from_unicode is
2352
invoked to convert a string and returns None or raise ValueError or
2353
TypeError. Accepted values are: None (ignore invalid values),
2354
'warning' (emit a warning), 'error' (emit an error message and
2357
:param unquote: should the unicode value be unquoted before conversion.
2358
This should be used only when the store providing the values cannot
2359
safely unquote them (see http://pad.lv/906897). It is provided so
2360
daughter classes can handle the quoting themselves.
2362
if override_from_env is None:
2363
override_from_env = []
2364
if default_from_env is None:
2365
default_from_env = []
2367
self.override_from_env = override_from_env
2368
# Convert the default value to a unicode string so all values are
2369
# strings internally before conversion (via from_unicode) is attempted.
2372
elif isinstance(default, list):
2373
# Only the empty list is supported
2375
raise AssertionError(
2376
'Only empty lists are supported as default values')
2378
elif isinstance(default, (str, unicode, bool, int, float)):
2379
# Rely on python to convert strings, booleans and integers
2380
self.default = u'%s' % (default,)
2381
elif callable(default):
2382
self.default = default
2384
# other python objects are not expected
2385
raise AssertionError('%r is not supported as a default value'
2387
self.default_from_env = default_from_env
2389
self.from_unicode = from_unicode
2390
self.unquote = unquote
2391
if invalid and invalid not in ('warning', 'error'):
2392
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2393
self.invalid = invalid
2395
def convert_from_unicode(self, store, unicode_value):
2396
if self.unquote and store is not None and unicode_value is not None:
2397
unicode_value = store.unquote(unicode_value)
2398
if self.from_unicode is None or unicode_value is None:
2399
# Don't convert or nothing to convert
2400
return unicode_value
2402
converted = self.from_unicode(unicode_value)
2403
except (ValueError, TypeError):
2404
# Invalid values are ignored
2406
if converted is None and self.invalid is not None:
2407
# The conversion failed
2408
if self.invalid == 'warning':
2409
trace.warning('Value "%s" is not valid for "%s"',
2410
unicode_value, self.name)
2411
elif self.invalid == 'error':
2412
raise errors.ConfigOptionValueError(self.name, unicode_value)
2415
def get_override(self):
2417
for var in self.override_from_env:
2419
# If the env variable is defined, its value takes precedence
2420
value = os.environ[var].decode(osutils.get_user_encoding())
2426
def get_default(self):
2428
for var in self.default_from_env:
2430
# If the env variable is defined, its value is the default one
2431
value = os.environ[var].decode(osutils.get_user_encoding())
2436
# Otherwise, fallback to the value defined at registration
2437
if callable(self.default):
2438
value = self.default()
2439
if not isinstance(value, unicode):
2440
raise AssertionError(
2441
'Callable default values should be unicode')
2443
value = self.default
2446
def get_help_topic(self):
2449
def get_help_text(self, additional_see_also=None, plain=True):
2451
from bzrlib import help_topics
2452
result += help_topics._format_see_also(additional_see_also)
2454
result = help_topics.help_as_plain_text(result)
2458
# Predefined converters to get proper values from store
2460
def bool_from_store(unicode_str):
2461
return ui.bool_from_string(unicode_str)
2464
def int_from_store(unicode_str):
2465
return int(unicode_str)
2468
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2470
def int_SI_from_store(unicode_str):
2471
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2473
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2474
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2477
:return Integer, expanded to its base-10 value if a proper SI unit is
2478
found, None otherwise.
2480
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2481
p = re.compile(regexp, re.IGNORECASE)
2482
m = p.match(unicode_str)
2485
val, _, unit = m.groups()
2489
coeff = _unit_suffixes[unit.upper()]
2491
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2496
def float_from_store(unicode_str):
2497
return float(unicode_str)
2500
# Use a an empty dict to initialize an empty configobj avoiding all
2501
# parsing and encoding checks
2502
_list_converter_config = configobj.ConfigObj(
2503
{}, encoding='utf-8', list_values=True, interpolation=False)
2506
class ListOption(Option):
2508
def __init__(self, name, default=None, default_from_env=None,
2509
help=None, invalid=None):
2510
"""A list Option definition.
2512
This overrides the base class so the conversion from a unicode string
2513
can take quoting into account.
2515
super(ListOption, self).__init__(
2516
name, default=default, default_from_env=default_from_env,
2517
from_unicode=self.from_unicode, help=help,
2518
invalid=invalid, unquote=False)
2520
def from_unicode(self, unicode_str):
2521
if not isinstance(unicode_str, basestring):
2523
# Now inject our string directly as unicode. All callers got their
2524
# value from configobj, so values that need to be quoted are already
2526
_list_converter_config.reset()
2527
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2528
maybe_list = _list_converter_config['list']
2529
if isinstance(maybe_list, basestring):
2531
# A single value, most probably the user forgot (or didn't care
2532
# to add) the final ','
2535
# The empty string, convert to empty list
2538
# We rely on ConfigObj providing us with a list already
2543
class OptionRegistry(registry.Registry):
2544
"""Register config options by their name.
2546
This overrides ``registry.Registry`` to simplify registration by acquiring
2547
some information from the option object itself.
2550
def register(self, option):
2551
"""Register a new option to its name.
2553
:param option: The option to register. Its name is used as the key.
2555
super(OptionRegistry, self).register(option.name, option,
2558
def register_lazy(self, key, module_name, member_name):
2559
"""Register a new option to be loaded on request.
2561
:param key: the key to request the option later. Since the registration
2562
is lazy, it should be provided and match the option name.
2564
:param module_name: the python path to the module. Such as 'os.path'.
2566
:param member_name: the member of the module to return. If empty or
2567
None, get() will return the module itself.
2569
super(OptionRegistry, self).register_lazy(key,
2570
module_name, member_name)
2572
def get_help(self, key=None):
2573
"""Get the help text associated with the given key"""
2574
option = self.get(key)
2575
the_help = option.help
2576
if callable(the_help):
2577
return the_help(self, key)
2581
option_registry = OptionRegistry()
2584
# Registered options in lexicographical order
2586
option_registry.register(
2587
Option('append_revisions_only',
2588
default=None, from_unicode=bool_from_store, invalid='warning',
2590
Whether to only append revisions to the mainline.
2592
If this is set to true, then it is not possible to change the
2593
existing mainline of the branch.
2595
option_registry.register(
2596
ListOption('acceptable_keys',
2599
List of GPG key patterns which are acceptable for verification.
2601
option_registry.register(
2602
Option('add.maximum_file_size',
2603
default=u'20MB', from_unicode=int_SI_from_store,
2605
Size above which files should be added manually.
2607
Files below this size are added automatically when using ``bzr add`` without
2610
A negative value means disable the size check.
2612
option_registry.register(
2614
default=None, from_unicode=bool_from_store,
2616
Is the branch bound to ``bound_location``.
2618
If set to "True", the branch should act as a checkout, and push each commit to
2619
the bound_location. This option is normally set by ``bind``/``unbind``.
2621
See also: bound_location.
2623
option_registry.register(
2624
Option('bound_location',
2627
The location that commits should go to when acting as a checkout.
2629
This option is normally set by ``bind``.
2633
option_registry.register(
2634
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2636
Whether revisions associated with tags should be fetched.
2638
option_registry.register(
2639
Option('bzr.workingtree.worth_saving_limit', default=10,
2640
from_unicode=int_from_store, invalid='warning',
2642
How many changes before saving the dirstate.
2644
-1 means that we will never rewrite the dirstate file for only
2645
stat-cache changes. Regardless of this setting, we will always rewrite
2646
the dirstate file if a file is added/removed/renamed/etc. This flag only
2647
affects the behavior of updating the dirstate file after we notice that
2648
a file has been touched.
2650
option_registry.register(
2651
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2652
from_unicode=signature_policy_from_unicode,
2654
GPG checking policy.
2656
Possible values: require, ignore, check-available (default)
2658
this option will control whether bzr will require good gpg
2659
signatures, ignore them, or check them if they are
2662
option_registry.register(
2663
Option('child_submit_format',
2664
help='''The preferred format of submissions to this branch.'''))
2665
option_registry.register(
2666
Option('child_submit_to',
2667
help='''Where submissions to this branch are mailed to.'''))
2668
option_registry.register(
2669
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2670
from_unicode=signing_policy_from_unicode,
2674
Possible values: always, never, when-required (default)
2676
This option controls whether bzr will always create
2677
gpg signatures or not on commits.
2679
option_registry.register(
2680
Option('dirstate.fdatasync', default=True,
2681
from_unicode=bool_from_store,
2683
Flush dirstate changes onto physical disk?
2685
If true (default), working tree metadata changes are flushed through the
2686
OS buffers to physical disk. This is somewhat slower, but means data
2687
should not be lost if the machine crashes. See also repository.fdatasync.
2689
option_registry.register(
2690
ListOption('debug_flags', default=[],
2691
help='Debug flags to activate.'))
2692
option_registry.register(
2693
Option('default_format', default='2a',
2694
help='Format used when creating branches.'))
2695
option_registry.register(
2696
Option('dpush_strict', default=None,
2697
from_unicode=bool_from_store,
2699
The default value for ``dpush --strict``.
2701
If present, defines the ``--strict`` option default value for checking
2702
uncommitted changes before pushing into a different VCS without any
2703
custom bzr metadata.
2705
option_registry.register(
2707
help='The command called to launch an editor to enter a message.'))
2708
option_registry.register(
2709
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2710
help='The users identity'))
2711
option_registry.register(
2712
Option('gpg_signing_command',
2715
Program to use use for creating signatures.
2717
This should support at least the -u and --clearsign options.
2719
option_registry.register(
2720
Option('gpg_signing_key',
2723
GPG key to use for signing.
2725
This defaults to the first key associated with the users email.
2727
option_registry.register(
2728
Option('ignore_missing_extensions', default=False,
2729
from_unicode=bool_from_store,
2731
Control the missing extensions warning display.
2733
The warning will not be emitted if set to True.
2735
option_registry.register(
2737
help='Language to translate messages into.'))
2738
option_registry.register(
2739
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2741
Steal locks that appears to be dead.
2743
If set to True, bzr will check if a lock is supposed to be held by an
2744
active process from the same user on the same machine. If the user and
2745
machine match, but no process with the given PID is active, then bzr
2746
will automatically break the stale lock, and create a new lock for
2748
Otherwise, bzr will prompt as normal to break the lock.
2750
option_registry.register(
2751
Option('log_format', default='long',
2753
Log format to use when displaying revisions.
2755
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2756
may be provided by plugins.
2758
option_registry.register(
2759
Option('output_encoding',
2760
help= 'Unicode encoding for output'
2761
' (terminal encoding if not specified).'))
2762
option_registry.register(
2763
Option('parent_location',
2766
The location of the default branch for pull or merge.
2768
This option is normally set when creating a branch, the first ``pull`` or by
2769
``pull --remember``.
2771
option_registry.register(
2772
Option('post_commit', default=None,
2774
Post commit functions.
2776
An ordered list of python functions to call, separated by spaces.
2778
Each function takes branch, rev_id as parameters.
2780
option_registry.register(
2781
Option('public_branch',
2784
A publically-accessible version of this branch.
2786
This implies that the branch setting this option is not publically-accessible.
2787
Used and set by ``bzr send``.
2789
option_registry.register(
2790
Option('push_location',
2793
The location of the default branch for push.
2795
This option is normally set by the first ``push`` or ``push --remember``.
2797
option_registry.register(
2798
Option('push_strict', default=None,
2799
from_unicode=bool_from_store,
2801
The default value for ``push --strict``.
2803
If present, defines the ``--strict`` option default value for checking
2804
uncommitted changes before sending a merge directive.
2806
option_registry.register(
2807
Option('repository.fdatasync', default=True,
2808
from_unicode=bool_from_store,
2810
Flush repository changes onto physical disk?
2812
If true (default), repository changes are flushed through the OS buffers
2813
to physical disk. This is somewhat slower, but means data should not be
2814
lost if the machine crashes. See also dirstate.fdatasync.
2816
option_registry.register_lazy('smtp_server',
2817
'bzrlib.smtp_connection', 'smtp_server')
2818
option_registry.register_lazy('smtp_password',
2819
'bzrlib.smtp_connection', 'smtp_password')
2820
option_registry.register_lazy('smtp_username',
2821
'bzrlib.smtp_connection', 'smtp_username')
2822
option_registry.register(
2823
Option('selftest.timeout',
2825
from_unicode=int_from_store,
2826
help='Abort selftest if one test takes longer than this many seconds',
2829
option_registry.register(
2830
Option('send_strict', default=None,
2831
from_unicode=bool_from_store,
2833
The default value for ``send --strict``.
2835
If present, defines the ``--strict`` option default value for checking
2836
uncommitted changes before sending a bundle.
2839
option_registry.register(
2840
Option('serve.client_timeout',
2841
default=300.0, from_unicode=float_from_store,
2842
help="If we wait for a new request from a client for more than"
2843
" X seconds, consider the client idle, and hangup."))
2844
option_registry.register(
2845
Option('stacked_on_location',
2847
help="""The location where this branch is stacked on."""))
2848
option_registry.register(
2849
Option('submit_branch',
2852
The branch you intend to submit your current work to.
2854
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2855
by the ``submit:`` revision spec.
2857
option_registry.register(
2859
help='''Where submissions from this branch are mailed to.'''))
2861
option_registry.register_lazy('ssl.ca_certs',
2862
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2864
option_registry.register_lazy('ssl.cert_reqs',
2865
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2869
class Section(object):
2870
"""A section defines a dict of option name => value.
2872
This is merely a read-only dict which can add some knowledge about the
2873
options. It is *not* a python dict object though and doesn't try to mimic
2877
def __init__(self, section_id, options):
2878
self.id = section_id
2879
# We re-use the dict-like object received
2880
self.options = options
2882
def get(self, name, default=None, expand=True):
2883
return self.options.get(name, default)
2885
def iter_option_names(self):
2886
for k in self.options.iterkeys():
2890
# Mostly for debugging use
2891
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2894
_NewlyCreatedOption = object()
2895
"""Was the option created during the MutableSection lifetime"""
2896
_DeletedOption = object()
2897
"""Was the option deleted during the MutableSection lifetime"""
2900
class MutableSection(Section):
2901
"""A section allowing changes and keeping track of the original values."""
2903
def __init__(self, section_id, options):
2904
super(MutableSection, self).__init__(section_id, options)
2905
self.reset_changes()
2907
def set(self, name, value):
2908
if name not in self.options:
2909
# This is a new option
2910
self.orig[name] = _NewlyCreatedOption
2911
elif name not in self.orig:
2912
self.orig[name] = self.get(name, None)
2913
self.options[name] = value
2915
def remove(self, name):
2916
if name not in self.orig:
2917
self.orig[name] = self.get(name, None)
2918
del self.options[name]
2920
def reset_changes(self):
2923
def apply_changes(self, dirty, store):
2924
"""Apply option value changes.
2926
``self`` has been reloaded from the persistent storage. ``dirty``
2927
contains the changes made since the previous loading.
2929
:param dirty: the mutable section containing the changes.
2931
:param store: the store containing the section
2933
for k, expected in dirty.orig.iteritems():
2934
actual = dirty.get(k, _DeletedOption)
2935
reloaded = self.get(k, _NewlyCreatedOption)
2936
if actual is _DeletedOption:
2937
if k in self.options:
2941
# Report concurrent updates in an ad-hoc way. This should only
2942
# occurs when different processes try to update the same option
2943
# which is not supported (as in: the config framework is not meant
2944
# to be used a sharing mechanism).
2945
if expected != reloaded:
2946
if actual is _DeletedOption:
2947
actual = '<DELETED>'
2948
if reloaded is _NewlyCreatedOption:
2949
reloaded = '<CREATED>'
2950
if expected is _NewlyCreatedOption:
2951
expected = '<CREATED>'
2952
# Someone changed the value since we get it from the persistent
2954
trace.warning(gettext(
2955
"Option {0} in section {1} of {2} was changed"
2956
" from {3} to {4}. The {5} value will be saved.".format(
2957
k, self.id, store.external_url(), expected,
2959
# No need to keep track of these changes
2960
self.reset_changes()
2963
class Store(object):
2964
"""Abstract interface to persistent storage for configuration options."""
2966
readonly_section_class = Section
2967
mutable_section_class = MutableSection
2970
# Which sections need to be saved
2971
self.dirty_sections = []
2973
def is_loaded(self):
2974
"""Returns True if the Store has been loaded.
2976
This is used to implement lazy loading and ensure the persistent
2977
storage is queried only when needed.
2979
raise NotImplementedError(self.is_loaded)
2982
"""Loads the Store from persistent storage."""
2983
raise NotImplementedError(self.load)
2985
def _load_from_string(self, bytes):
2986
"""Create a store from a string in configobj syntax.
2988
:param bytes: A string representing the file content.
2990
raise NotImplementedError(self._load_from_string)
2993
"""Unloads the Store.
2995
This should make is_loaded() return False. This is used when the caller
2996
knows that the persistent storage has changed or may have change since
2999
raise NotImplementedError(self.unload)
3001
def quote(self, value):
3002
"""Quote a configuration option value for storing purposes.
3004
This allows Stacks to present values as they will be stored.
3008
def unquote(self, value):
3009
"""Unquote a configuration option value into unicode.
3011
The received value is quoted as stored.
3016
"""Saves the Store to persistent storage."""
3017
raise NotImplementedError(self.save)
3019
def _need_saving(self):
3020
for s in self.dirty_sections:
3022
# At least one dirty section contains a modification
3026
def apply_changes(self, dirty_sections):
3027
"""Apply changes from dirty sections while checking for coherency.
3029
The Store content is discarded and reloaded from persistent storage to
3030
acquire up-to-date values.
3032
Dirty sections are MutableSection which kept track of the value they
3033
are expected to update.
3035
# We need an up-to-date version from the persistent storage, unload the
3036
# store. The reload will occur when needed (triggered by the first
3037
# get_mutable_section() call below.
3039
# Apply the changes from the preserved dirty sections
3040
for dirty in dirty_sections:
3041
clean = self.get_mutable_section(dirty.id)
3042
clean.apply_changes(dirty, self)
3043
# Everything is clean now
3044
self.dirty_sections = []
3046
def save_changes(self):
3047
"""Saves the Store to persistent storage if changes occurred.
3049
Apply the changes recorded in the mutable sections to a store content
3050
refreshed from persistent storage.
3052
raise NotImplementedError(self.save_changes)
3054
def external_url(self):
3055
raise NotImplementedError(self.external_url)
3057
def get_sections(self):
3058
"""Returns an ordered iterable of existing sections.
3060
:returns: An iterable of (store, section).
3062
raise NotImplementedError(self.get_sections)
3064
def get_mutable_section(self, section_id=None):
3065
"""Returns the specified mutable section.
3067
:param section_id: The section identifier
3069
raise NotImplementedError(self.get_mutable_section)
3072
# Mostly for debugging use
3073
return "<config.%s(%s)>" % (self.__class__.__name__,
3074
self.external_url())
3077
class CommandLineStore(Store):
3078
"A store to carry command line overrides for the config options."""
3080
def __init__(self, opts=None):
3081
super(CommandLineStore, self).__init__()
3088
# The dict should be cleared but not replaced so it can be shared.
3089
self.options.clear()
3091
def _from_cmdline(self, overrides):
3092
# Reset before accepting new definitions
3094
for over in overrides:
3096
name, value = over.split('=', 1)
3098
raise errors.BzrCommandError(
3099
gettext("Invalid '%s', should be of the form 'name=value'")
3101
self.options[name] = value
3103
def external_url(self):
3104
# Not an url but it makes debugging easier and is never needed
3108
def get_sections(self):
3109
yield self, self.readonly_section_class(None, self.options)
3112
class IniFileStore(Store):
3113
"""A config Store using ConfigObj for storage.
3115
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3116
serialize/deserialize the config file.
3120
"""A config Store using ConfigObj for storage.
3122
super(IniFileStore, self).__init__()
3123
self._config_obj = None
3125
def is_loaded(self):
3126
return self._config_obj != None
3129
self._config_obj = None
3130
self.dirty_sections = []
3132
def _load_content(self):
3133
"""Load the config file bytes.
3135
This should be provided by subclasses
3137
:return: Byte string
3139
raise NotImplementedError(self._load_content)
3141
def _save_content(self, content):
3142
"""Save the config file bytes.
3144
This should be provided by subclasses
3146
:param content: Config file bytes to write
3148
raise NotImplementedError(self._save_content)
3151
"""Load the store from the associated file."""
3152
if self.is_loaded():
3154
content = self._load_content()
3155
self._load_from_string(content)
3156
for hook in ConfigHooks['load']:
3159
def _load_from_string(self, bytes):
3160
"""Create a config store from a string.
3162
:param bytes: A string representing the file content.
3164
if self.is_loaded():
3165
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3166
co_input = StringIO(bytes)
3168
# The config files are always stored utf8-encoded
3169
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3171
except configobj.ConfigObjError, e:
3172
self._config_obj = None
3173
raise errors.ParseConfigError(e.errors, self.external_url())
3174
except UnicodeDecodeError:
3175
raise errors.ConfigContentError(self.external_url())
3177
def save_changes(self):
3178
if not self.is_loaded():
3181
if not self._need_saving():
3183
# Preserve the current version
3184
current = self._config_obj
3185
dirty_sections = list(self.dirty_sections)
3186
self.apply_changes(dirty_sections)
3187
# Save to the persistent storage
3191
if not self.is_loaded():
3195
self._config_obj.write(out)
3196
self._save_content(out.getvalue())
3197
for hook in ConfigHooks['save']:
3200
def get_sections(self):
3201
"""Get the configobj section in the file order.
3203
:returns: An iterable of (store, section).
3205
# We need a loaded store
3208
except (errors.NoSuchFile, errors.PermissionDenied):
3209
# If the file can't be read, there is no sections
3211
cobj = self._config_obj
3213
yield self, self.readonly_section_class(None, cobj)
3214
for section_name in cobj.sections:
3216
self.readonly_section_class(section_name,
3217
cobj[section_name]))
3219
def get_mutable_section(self, section_id=None):
3220
# We need a loaded store
3223
except errors.NoSuchFile:
3224
# The file doesn't exist, let's pretend it was empty
3225
self._load_from_string('')
3226
if section_id is None:
3227
section = self._config_obj
3229
section = self._config_obj.setdefault(section_id, {})
3230
mutable_section = self.mutable_section_class(section_id, section)
3231
# All mutable sections can become dirty
3232
self.dirty_sections.append(mutable_section)
3233
return mutable_section
3235
def quote(self, value):
3237
# configobj conflates automagical list values and quoting
3238
self._config_obj.list_values = True
3239
return self._config_obj._quote(value)
3241
self._config_obj.list_values = False
3243
def unquote(self, value):
3244
if value and isinstance(value, basestring):
3245
# _unquote doesn't handle None nor empty strings nor anything that
3246
# is not a string, really.
3247
value = self._config_obj._unquote(value)
3250
def external_url(self):
3251
# Since an IniFileStore can be used without a file (at least in tests),
3252
# it's better to provide something than raising a NotImplementedError.
3253
# All daughter classes are supposed to provide an implementation
3255
return 'In-Process Store, no URL'
3257
class TransportIniFileStore(IniFileStore):
3258
"""IniFileStore that loads files from a transport.
3260
:ivar transport: The transport object where the config file is located.
3262
:ivar file_name: The config file basename in the transport directory.
3265
def __init__(self, transport, file_name):
3266
"""A Store using a ini file on a Transport
3268
:param transport: The transport object where the config file is located.
3269
:param file_name: The config file basename in the transport directory.
3271
super(TransportIniFileStore, self).__init__()
3272
self.transport = transport
3273
self.file_name = file_name
3275
def _load_content(self):
3277
return self.transport.get_bytes(self.file_name)
3278
except errors.PermissionDenied:
3279
trace.warning("Permission denied while trying to load "
3280
"configuration store %s.", self.external_url())
3283
def _save_content(self, content):
3284
self.transport.put_bytes(self.file_name, content)
3286
def external_url(self):
3287
# FIXME: external_url should really accepts an optional relpath
3288
# parameter (bug #750169) :-/ -- vila 2011-04-04
3289
# The following will do in the interim but maybe we don't want to
3290
# expose a path here but rather a config ID and its associated
3291
# object </hand wawe>.
3292
return urlutils.join(self.transport.external_url(), self.file_name)
3295
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3296
# unlockable stores for use with objects that can already ensure the locking
3297
# (think branches). If different stores (not based on ConfigObj) are created,
3298
# they may face the same issue.
3301
class LockableIniFileStore(TransportIniFileStore):
3302
"""A ConfigObjStore using locks on save to ensure store integrity."""
3304
def __init__(self, transport, file_name, lock_dir_name=None):
3305
"""A config Store using ConfigObj for storage.
3307
:param transport: The transport object where the config file is located.
3309
:param file_name: The config file basename in the transport directory.
3311
if lock_dir_name is None:
3312
lock_dir_name = 'lock'
3313
self.lock_dir_name = lock_dir_name
3314
super(LockableIniFileStore, self).__init__(transport, file_name)
3315
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3317
def lock_write(self, token=None):
3318
"""Takes a write lock in the directory containing the config file.
3320
If the directory doesn't exist it is created.
3322
# FIXME: This doesn't check the ownership of the created directories as
3323
# ensure_config_dir_exists does. It should if the transport is local
3324
# -- vila 2011-04-06
3325
self.transport.create_prefix()
3326
return self._lock.lock_write(token)
3331
def break_lock(self):
3332
self._lock.break_lock()
3336
# We need to be able to override the undecorated implementation
3337
self.save_without_locking()
3339
def save_without_locking(self):
3340
super(LockableIniFileStore, self).save()
3343
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3344
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3345
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3347
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3348
# functions or a registry will make it easier and clearer for tests, focusing
3349
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3350
# on a poolie's remark)
3351
class GlobalStore(LockableIniFileStore):
3353
def __init__(self, possible_transports=None):
3354
t = transport.get_transport_from_path(
3355
config_dir(), possible_transports=possible_transports)
3356
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3360
class LocationStore(LockableIniFileStore):
3362
def __init__(self, possible_transports=None):
3363
t = transport.get_transport_from_path(
3364
config_dir(), possible_transports=possible_transports)
3365
super(LocationStore, self).__init__(t, 'locations.conf')
3366
self.id = 'locations'
3369
class BranchStore(TransportIniFileStore):
3371
def __init__(self, branch):
3372
super(BranchStore, self).__init__(branch.control_transport,
3374
self.branch = branch
3377
def lock_write(self, token=None):
3378
return self.branch.lock_write(token)
3381
return self.branch.unlock()
3385
# We need to be able to override the undecorated implementation
3386
self.save_without_locking()
3388
def save_without_locking(self):
3389
super(BranchStore, self).save()
3392
class ControlStore(LockableIniFileStore):
3394
def __init__(self, bzrdir):
3395
super(ControlStore, self).__init__(bzrdir.transport,
3397
lock_dir_name='branch_lock')
3401
class SectionMatcher(object):
3402
"""Select sections into a given Store.
3404
This is intended to be used to postpone getting an iterable of sections
3408
def __init__(self, store):
3411
def get_sections(self):
3412
# This is where we require loading the store so we can see all defined
3414
sections = self.store.get_sections()
3415
# Walk the revisions in the order provided
3416
for store, s in sections:
3420
def match(self, section):
3421
"""Does the proposed section match.
3423
:param section: A Section object.
3425
:returns: True if the section matches, False otherwise.
3427
raise NotImplementedError(self.match)
3430
class NameMatcher(SectionMatcher):
3432
def __init__(self, store, section_id):
3433
super(NameMatcher, self).__init__(store)
3434
self.section_id = section_id
3436
def match(self, section):
3437
return section.id == self.section_id
3440
class LocationSection(Section):
3442
def __init__(self, section, extra_path):
3443
super(LocationSection, self).__init__(section.id, section.options)
3444
self.extra_path = extra_path
3445
self.locals = {'relpath': extra_path,
3446
'basename': urlutils.basename(extra_path)}
3448
def get(self, name, default=None, expand=True):
3449
value = super(LocationSection, self).get(name, default)
3450
if value is not None and expand:
3451
policy_name = self.get(name + ':policy', None)
3452
policy = _policy_value.get(policy_name, POLICY_NONE)
3453
if policy == POLICY_APPENDPATH:
3454
value = urlutils.join(value, self.extra_path)
3455
# expand section local options right now (since POLICY_APPENDPATH
3456
# will never add options references, it's ok to expand after it).
3458
for is_ref, chunk in iter_option_refs(value):
3460
chunks.append(chunk)
3463
if ref in self.locals:
3464
chunks.append(self.locals[ref])
3466
chunks.append(chunk)
3467
value = ''.join(chunks)
3471
class StartingPathMatcher(SectionMatcher):
3472
"""Select sections for a given location respecting the Store order."""
3474
# FIXME: Both local paths and urls can be used for section names as well as
3475
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3476
# inherited the fuzziness from the previous ``LocationConfig``
3477
# implementation. We probably need to revisit which encoding is allowed for
3478
# both ``location`` and section names and how we normalize
3479
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3480
# related too. -- vila 2012-01-04
3482
def __init__(self, store, location):
3483
super(StartingPathMatcher, self).__init__(store)
3484
if location.startswith('file://'):
3485
location = urlutils.local_path_from_url(location)
3486
self.location = location
3488
def get_sections(self):
3489
"""Get all sections matching ``location`` in the store.
3491
The most generic sections are described first in the store, then more
3492
specific ones can be provided for reduced scopes.
3494
The returned section are therefore returned in the reversed order so
3495
the most specific ones can be found first.
3497
location_parts = self.location.rstrip('/').split('/')
3500
# Later sections are more specific, they should be returned first
3501
for _, section in reversed(list(store.get_sections())):
3502
if section.id is None:
3503
# The no-name section is always included if present
3504
yield store, LocationSection(section, self.location)
3506
section_path = section.id
3507
if section_path.startswith('file://'):
3508
# the location is already a local path or URL, convert the
3509
# section id to the same format
3510
section_path = urlutils.local_path_from_url(section_path)
3511
if (self.location.startswith(section_path)
3512
or fnmatch.fnmatch(self.location, section_path)):
3513
section_parts = section_path.rstrip('/').split('/')
3514
extra_path = '/'.join(location_parts[len(section_parts):])
3515
yield store, LocationSection(section, extra_path)
3518
class LocationMatcher(SectionMatcher):
3520
def __init__(self, store, location):
3521
super(LocationMatcher, self).__init__(store)
3522
if location.startswith('file://'):
3523
location = urlutils.local_path_from_url(location)
3524
self.location = location
3526
def _get_matching_sections(self):
3527
"""Get all sections matching ``location``."""
3528
# We slightly diverge from LocalConfig here by allowing the no-name
3529
# section as the most generic one and the lower priority.
3530
no_name_section = None
3532
# Filter out the no_name_section so _iter_for_location_by_parts can be
3533
# used (it assumes all sections have a name).
3534
for _, section in self.store.get_sections():
3535
if section.id is None:
3536
no_name_section = section
3538
all_sections.append(section)
3539
# Unfortunately _iter_for_location_by_parts deals with section names so
3540
# we have to resync.
3541
filtered_sections = _iter_for_location_by_parts(
3542
[s.id for s in all_sections], self.location)
3543
iter_all_sections = iter(all_sections)
3544
matching_sections = []
3545
if no_name_section is not None:
3546
matching_sections.append(
3547
(0, LocationSection(no_name_section, self.location)))
3548
for section_id, extra_path, length in filtered_sections:
3549
# a section id is unique for a given store so it's safe to take the
3550
# first matching section while iterating. Also, all filtered
3551
# sections are part of 'all_sections' and will always be found
3554
section = iter_all_sections.next()
3555
if section_id == section.id:
3556
matching_sections.append(
3557
(length, LocationSection(section, extra_path)))
3559
return matching_sections
3561
def get_sections(self):
3562
# Override the default implementation as we want to change the order
3563
matching_sections = self._get_matching_sections()
3564
# We want the longest (aka more specific) locations first
3565
sections = sorted(matching_sections,
3566
key=lambda (length, section): (length, section.id),
3568
# Sections mentioning 'ignore_parents' restrict the selection
3569
for _, section in sections:
3570
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3571
ignore = section.get('ignore_parents', None)
3572
if ignore is not None:
3573
ignore = ui.bool_from_string(ignore)
3576
# Finally, we have a valid section
3577
yield self.store, section
3580
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3581
"""Describes an expandable option reference.
3583
We want to match the most embedded reference first.
3585
I.e. for '{{foo}}' we will get '{foo}',
3586
for '{bar{baz}}' we will get '{baz}'
3589
def iter_option_refs(string):
3590
# Split isolate refs so every other chunk is a ref
3592
for chunk in _option_ref_re.split(string):
3597
class Stack(object):
3598
"""A stack of configurations where an option can be defined"""
3600
def __init__(self, sections_def, store=None, mutable_section_id=None):
3601
"""Creates a stack of sections with an optional store for changes.
3603
:param sections_def: A list of Section or callables that returns an
3604
iterable of Section. This defines the Sections for the Stack and
3605
can be called repeatedly if needed.
3607
:param store: The optional Store where modifications will be
3608
recorded. If none is specified, no modifications can be done.
3610
:param mutable_section_id: The id of the MutableSection where changes
3611
are recorded. This requires the ``store`` parameter to be
3614
self.sections_def = sections_def
3616
self.mutable_section_id = mutable_section_id
3618
def get(self, name, expand=None):
3619
"""Return the *first* option value found in the sections.
3621
This is where we guarantee that sections coming from Store are loaded
3622
lazily: the loading is delayed until we need to either check that an
3623
option exists or get its value, which in turn may require to discover
3624
in which sections it can be defined. Both of these (section and option
3625
existence) require loading the store (even partially).
3627
:param name: The queried option.
3629
:param expand: Whether options references should be expanded.
3631
:returns: The value of the option.
3633
# FIXME: No caching of options nor sections yet -- vila 20110503
3635
expand = _get_expand_default_value()
3637
found_store = None # Where the option value has been found
3638
# If the option is registered, it may provide additional info about
3641
opt = option_registry.get(name)
3646
def expand_and_convert(val):
3647
# This may need to be called in different contexts if the value is
3648
# None or ends up being None during expansion or conversion.
3651
if isinstance(val, basestring):
3652
val = self._expand_options_in_string(val)
3654
trace.warning('Cannot expand "%s":'
3655
' %s does not support option expansion'
3656
% (name, type(val)))
3658
val = found_store.unquote(val)
3660
val = opt.convert_from_unicode(found_store, val)
3663
# First of all, check if the environment can override the configuration
3665
if opt is not None and opt.override_from_env:
3666
value = opt.get_override()
3667
value = expand_and_convert(value)
3669
# Ensuring lazy loading is achieved by delaying section matching
3670
# (which implies querying the persistent storage) until it can't be
3671
# avoided anymore by using callables to describe (possibly empty)
3673
for sections in self.sections_def:
3674
for store, section in sections():
3675
value = section.get(name)
3676
if value is not None:
3679
if value is not None:
3681
value = expand_and_convert(value)
3682
if opt is not None and value is None:
3683
# If the option is registered, it may provide a default value
3684
value = opt.get_default()
3685
value = expand_and_convert(value)
3686
for hook in ConfigHooks['get']:
3687
hook(self, name, value)
3690
def expand_options(self, string, env=None):
3691
"""Expand option references in the string in the configuration context.
3693
:param string: The string containing option(s) to expand.
3695
:param env: An option dict defining additional configuration options or
3696
overriding existing ones.
3698
:returns: The expanded string.
3700
return self._expand_options_in_string(string, env)
3702
def _expand_options_in_string(self, string, env=None, _refs=None):
3703
"""Expand options in the string in the configuration context.
3705
:param string: The string to be expanded.
3707
:param env: An option dict defining additional configuration options or
3708
overriding existing ones.
3710
:param _refs: Private list (FIFO) containing the options being expanded
3713
:returns: The expanded string.
3716
# Not much to expand there
3719
# What references are currently resolved (to detect loops)
3722
# We need to iterate until no more refs appear ({{foo}} will need two
3723
# iterations for example).
3728
for is_ref, chunk in iter_option_refs(result):
3730
chunks.append(chunk)
3735
raise errors.OptionExpansionLoop(string, _refs)
3737
value = self._expand_option(name, env, _refs)
3739
raise errors.ExpandingUnknownOption(name, string)
3740
chunks.append(value)
3742
result = ''.join(chunks)
3745
def _expand_option(self, name, env, _refs):
3746
if env is not None and name in env:
3747
# Special case, values provided in env takes precedence over
3751
value = self.get(name, expand=False)
3752
value = self._expand_options_in_string(value, env, _refs)
3755
def _get_mutable_section(self):
3756
"""Get the MutableSection for the Stack.
3758
This is where we guarantee that the mutable section is lazily loaded:
3759
this means we won't load the corresponding store before setting a value
3760
or deleting an option. In practice the store will often be loaded but
3761
this helps catching some programming errors.
3764
section = store.get_mutable_section(self.mutable_section_id)
3765
return store, section
3767
def set(self, name, value):
3768
"""Set a new value for the option."""
3769
store, section = self._get_mutable_section()
3770
section.set(name, store.quote(value))
3771
for hook in ConfigHooks['set']:
3772
hook(self, name, value)
3774
def remove(self, name):
3775
"""Remove an existing option."""
3776
_, section = self._get_mutable_section()
3777
section.remove(name)
3778
for hook in ConfigHooks['remove']:
3782
# Mostly for debugging use
3783
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3785
def _get_overrides(self):
3786
# Hack around library_state.initialize never called
3787
if bzrlib.global_state is not None:
3788
return bzrlib.global_state.cmdline_overrides.get_sections()
3792
class MemoryStack(Stack):
3793
"""A configuration stack defined from a string.
3795
This is mainly intended for tests and requires no disk resources.
3798
def __init__(self, content=None):
3799
"""Create an in-memory stack from a given content.
3801
It uses a single store based on configobj and support reading and
3804
:param content: The initial content of the store. If None, the store is
3805
not loaded and ``_load_from_string`` can and should be used if
3808
store = IniFileStore()
3809
if content is not None:
3810
store._load_from_string(content)
3811
super(MemoryStack, self).__init__(
3812
[store.get_sections], store)
3815
class _CompatibleStack(Stack):
3816
"""Place holder for compatibility with previous design.
3818
This is intended to ease the transition from the Config-based design to the
3819
Stack-based design and should not be used nor relied upon by plugins.
3821
One assumption made here is that the daughter classes will all use Stores
3822
derived from LockableIniFileStore).
3824
It implements set() and remove () by re-loading the store before applying
3825
the modification and saving it.
3827
The long term plan being to implement a single write by store to save
3828
all modifications, this class should not be used in the interim.
3831
def set(self, name, value):
3834
super(_CompatibleStack, self).set(name, value)
3835
# Force a write to persistent storage
3838
def remove(self, name):
3841
super(_CompatibleStack, self).remove(name)
3842
# Force a write to persistent storage
3846
class GlobalStack(_CompatibleStack):
3847
"""Global options only stack.
3849
The following sections are queried:
3851
* command-line overrides,
3853
* the 'DEFAULT' section in bazaar.conf
3855
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3860
gstore = GlobalStore()
3861
super(GlobalStack, self).__init__(
3862
[self._get_overrides,
3863
NameMatcher(gstore, 'DEFAULT').get_sections],
3864
gstore, mutable_section_id='DEFAULT')
3867
class LocationStack(_CompatibleStack):
3868
"""Per-location options falling back to global options stack.
3871
The following sections are queried:
3873
* command-line overrides,
3875
* the sections matching ``location`` in ``locations.conf``, the order being
3876
defined by the number of path components in the section glob, higher
3877
numbers first (from most specific section to most generic).
3879
* the 'DEFAULT' section in bazaar.conf
3881
This stack will use the ``location`` section in locations.conf as its
3885
def __init__(self, location):
3886
"""Make a new stack for a location and global configuration.
3888
:param location: A URL prefix to """
3889
lstore = LocationStore()
3890
if location.startswith('file://'):
3891
location = urlutils.local_path_from_url(location)
3892
gstore = GlobalStore()
3893
super(LocationStack, self).__init__(
3894
[self._get_overrides,
3895
LocationMatcher(lstore, location).get_sections,
3896
NameMatcher(gstore, 'DEFAULT').get_sections],
3897
lstore, mutable_section_id=location)
3900
class BranchStack(_CompatibleStack):
3901
"""Per-location options falling back to branch then global options stack.
3903
The following sections are queried:
3905
* command-line overrides,
3907
* the sections matching ``location`` in ``locations.conf``, the order being
3908
defined by the number of path components in the section glob, higher
3909
numbers first (from most specific section to most generic),
3911
* the no-name section in branch.conf,
3913
* the ``DEFAULT`` section in ``bazaar.conf``.
3915
This stack will use the no-name section in ``branch.conf`` as its
3919
def __init__(self, branch):
3920
lstore = LocationStore()
3921
bstore = branch._get_config_store()
3922
gstore = GlobalStore()
3923
super(BranchStack, self).__init__(
3924
[self._get_overrides,
3925
LocationMatcher(lstore, branch.base).get_sections,
3926
NameMatcher(bstore, None).get_sections,
3927
NameMatcher(gstore, 'DEFAULT').get_sections],
3929
self.branch = branch
3932
class RemoteControlStack(_CompatibleStack):
3933
"""Remote control-only options stack."""
3935
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3936
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3937
# control.conf and is used only for stack options.
3939
def __init__(self, bzrdir):
3940
cstore = bzrdir._get_config_store()
3941
super(RemoteControlStack, self).__init__(
3942
[NameMatcher(cstore, None).get_sections],
3944
self.bzrdir = bzrdir
3947
class BranchOnlyStack(_CompatibleStack):
3948
"""Branch-only options stack."""
3950
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3951
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3952
# -- vila 2011-12-16
3954
def __init__(self, branch):
3955
bstore = branch._get_config_store()
3956
super(BranchOnlyStack, self).__init__(
3957
[NameMatcher(bstore, None).get_sections],
3959
self.branch = branch
3962
# Use a an empty dict to initialize an empty configobj avoiding all
3963
# parsing and encoding checks
3964
_quoting_config = configobj.ConfigObj(
3965
{}, encoding='utf-8', interpolation=False, list_values=True)
3967
class cmd_config(commands.Command):
3968
__doc__ = """Display, set or remove a configuration option.
3970
Display the active value for a given option.
3972
If --all is specified, NAME is interpreted as a regular expression and all
3973
matching options are displayed mentioning their scope. The active value
3974
that bzr will take into account is the first one displayed for each option.
3976
If no NAME is given, --all .* is implied.
3978
Setting a value is achieved by using name=value without spaces. The value
3979
is set in the most relevant scope and can be checked by displaying the
3983
takes_args = ['name?']
3987
# FIXME: This should be a registry option so that plugins can register
3988
# their own config files (or not) and will also address
3989
# http://pad.lv/788991 -- vila 20101115
3990
commands.Option('scope', help='Reduce the scope to the specified'
3991
' configuration file.',
3993
commands.Option('all',
3994
help='Display all the defined values for the matching options.',
3996
commands.Option('remove', help='Remove the option from'
3997
' the configuration file.'),
4000
_see_also = ['configuration']
4002
@commands.display_command
4003
def run(self, name=None, all=False, directory=None, scope=None,
4005
if directory is None:
4007
directory = directory_service.directories.dereference(directory)
4008
directory = urlutils.normalize_url(directory)
4010
raise errors.BzrError(
4011
'--all and --remove are mutually exclusive.')
4013
# Delete the option in the given scope
4014
self._remove_config_option(name, directory, scope)
4016
# Defaults to all options
4017
self._show_matching_options('.*', directory, scope)
4020
name, value = name.split('=', 1)
4022
# Display the option(s) value(s)
4024
self._show_matching_options(name, directory, scope)
4026
self._show_value(name, directory, scope)
4029
raise errors.BzrError(
4030
'Only one option can be set.')
4031
# Set the option value
4032
self._set_config_option(name, value, directory, scope)
4034
def _get_stack(self, directory, scope=None):
4035
"""Get the configuration stack specified by ``directory`` and ``scope``.
4037
:param directory: Where the configurations are derived from.
4039
:param scope: A specific config to start from.
4041
# FIXME: scope should allow access to plugin-specific stacks (even
4042
# reduced to the plugin-specific store), related to
4043
# http://pad.lv/788991 -- vila 2011-11-15
4044
if scope is not None:
4045
if scope == 'bazaar':
4046
return GlobalStack()
4047
elif scope == 'locations':
4048
return LocationStack(directory)
4049
elif scope == 'branch':
4051
controldir.ControlDir.open_containing_tree_or_branch(
4053
return br.get_config_stack()
4054
raise errors.NoSuchConfig(scope)
4058
controldir.ControlDir.open_containing_tree_or_branch(
4060
return br.get_config_stack()
4061
except errors.NotBranchError:
4062
return LocationStack(directory)
4064
def _show_value(self, name, directory, scope):
4065
conf = self._get_stack(directory, scope)
4066
value = conf.get(name, expand=True)
4067
if value is not None:
4068
# Quote the value appropriately
4069
value = _quoting_config._quote(value)
4070
self.outf.write('%s\n' % (value,))
4072
raise errors.NoSuchConfigOption(name)
4074
def _show_matching_options(self, name, directory, scope):
4075
name = lazy_regex.lazy_compile(name)
4076
# We want any error in the regexp to be raised *now* so we need to
4077
# avoid the delay introduced by the lazy regexp. But, we still do
4078
# want the nicer errors raised by lazy_regex.
4079
name._compile_and_collapse()
4082
conf = self._get_stack(directory, scope)
4083
for sections in conf.sections_def:
4084
for store, section in sections():
4085
for oname in section.iter_option_names():
4086
if name.search(oname):
4087
if cur_store_id != store.id:
4088
# Explain where the options are defined
4089
self.outf.write('%s:\n' % (store.id,))
4090
cur_store_id = store.id
4092
if (section.id is not None
4093
and cur_section != section.id):
4094
# Display the section id as it appears in the store
4095
# (None doesn't appear by definition)
4096
self.outf.write(' [%s]\n' % (section.id,))
4097
cur_section = section.id
4098
value = section.get(oname, expand=False)
4099
# Since we don't use the stack, we need to restore a
4102
opt = option_registry.get(oname)
4103
value = opt.convert_from_unicode(store, value)
4105
value = store.unquote(value)
4106
value = _quoting_config._quote(value)
4107
self.outf.write(' %s = %s\n' % (oname, value))
4109
def _set_config_option(self, name, value, directory, scope):
4110
conf = self._get_stack(directory, scope)
4111
conf.set(name, value)
4113
def _remove_config_option(self, name, directory, scope):
4115
raise errors.BzrCommandError(
4116
'--remove expects an option to remove.')
4117
conf = self._get_stack(directory, scope)
4121
raise errors.NoSuchConfigOption(name)
4126
# We need adapters that can build a Store or a Stack in a test context. Test
4127
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4128
# themselves. The builder will receive a test instance and should return a
4129
# ready-to-use store or stack. Plugins that define new store/stacks can also
4130
# register themselves here to be tested against the tests defined in
4131
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4132
# for the same test.
4134
# The registered object should be a callable receiving a test instance
4135
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4137
test_store_builder_registry = registry.Registry()
4139
# The registered object should be a callable receiving a test instance
4140
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4142
test_stack_builder_registry = registry.Registry()