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
2399
def convert_from_unicode(self, store, unicode_value):
2400
if self.unquote and store is not None and unicode_value is not None:
2401
unicode_value = store.unquote(unicode_value)
2402
if self.from_unicode is None or unicode_value is None:
2403
# Don't convert or nothing to convert
2404
return unicode_value
2406
converted = self.from_unicode(unicode_value)
2407
except (ValueError, TypeError):
2408
# Invalid values are ignored
2410
if converted is None and self.invalid is not None:
2411
# The conversion failed
2412
if self.invalid == 'warning':
2413
trace.warning('Value "%s" is not valid for "%s"',
2414
unicode_value, self.name)
2415
elif self.invalid == 'error':
2416
raise errors.ConfigOptionValueError(self.name, unicode_value)
2419
def get_override(self):
2421
for var in self.override_from_env:
2423
# If the env variable is defined, its value takes precedence
2424
value = os.environ[var].decode(osutils.get_user_encoding())
2430
def get_default(self):
2432
for var in self.default_from_env:
2434
# If the env variable is defined, its value is the default one
2435
value = os.environ[var].decode(osutils.get_user_encoding())
2440
# Otherwise, fallback to the value defined at registration
2441
if callable(self.default):
2442
value = self.default()
2443
if not isinstance(value, unicode):
2444
raise AssertionError(
2445
'Callable default values should be unicode')
2447
value = self.default
2450
def get_help_text(self, additional_see_also=None, plain=True):
2452
from bzrlib import help_topics
2453
result += help_topics._format_see_also(additional_see_also)
2455
result = help_topics.help_as_plain_text(result)
2459
# Predefined converters to get proper values from store
2461
def bool_from_store(unicode_str):
2462
return ui.bool_from_string(unicode_str)
2465
def int_from_store(unicode_str):
2466
return int(unicode_str)
2469
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2471
def int_SI_from_store(unicode_str):
2472
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2474
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2475
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2478
:return Integer, expanded to its base-10 value if a proper SI unit is
2479
found, None otherwise.
2481
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2482
p = re.compile(regexp, re.IGNORECASE)
2483
m = p.match(unicode_str)
2486
val, _, unit = m.groups()
2490
coeff = _unit_suffixes[unit.upper()]
2492
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2497
def float_from_store(unicode_str):
2498
return float(unicode_str)
2501
# Use a an empty dict to initialize an empty configobj avoiding all
2502
# parsing and encoding checks
2503
_list_converter_config = configobj.ConfigObj(
2504
{}, encoding='utf-8', list_values=True, interpolation=False)
2507
class ListOption(Option):
2509
def __init__(self, name, default=None, default_from_env=None,
2510
help=None, invalid=None):
2511
"""A list Option definition.
2513
This overrides the base class so the conversion from a unicode string
2514
can take quoting into account.
2516
super(ListOption, self).__init__(
2517
name, default=default, default_from_env=default_from_env,
2518
from_unicode=self.from_unicode, help=help,
2519
invalid=invalid, unquote=False)
2521
def from_unicode(self, unicode_str):
2522
if not isinstance(unicode_str, basestring):
2524
# Now inject our string directly as unicode. All callers got their
2525
# value from configobj, so values that need to be quoted are already
2527
_list_converter_config.reset()
2528
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2529
maybe_list = _list_converter_config['list']
2530
if isinstance(maybe_list, basestring):
2532
# A single value, most probably the user forgot (or didn't care
2533
# to add) the final ','
2536
# The empty string, convert to empty list
2539
# We rely on ConfigObj providing us with a list already
2544
class RegistryOption(Option):
2545
"""Option for a choice from a registry."""
2547
def __init__(self, name, registry, default_from_env=None,
2548
help=None, invalid=None):
2549
"""A registry based Option definition.
2551
This overrides the base class so the conversion from a unicode string
2552
can take quoting into account.
2554
super(RegistryOption, self).__init__(
2555
name, default=lambda: unicode(registry.default_key),
2556
default_from_env=default_from_env,
2557
from_unicode=self.from_unicode, help=help,
2558
invalid=invalid, unquote=False)
2559
self.registry = registry
2561
def from_unicode(self, unicode_str):
2562
if not isinstance(unicode_str, basestring):
2565
return self.registry.get(unicode_str)
2568
"Invalid value %s for %s."
2569
"See help for a list of possible values." % (unicode_str,
2574
ret = [self._help, "\n\nThe following values are supported:\n"]
2575
for key in self.registry.keys():
2576
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2580
class OptionRegistry(registry.Registry):
2581
"""Register config options by their name.
2583
This overrides ``registry.Registry`` to simplify registration by acquiring
2584
some information from the option object itself.
2587
def register(self, option):
2588
"""Register a new option to its name.
2590
:param option: The option to register. Its name is used as the key.
2592
super(OptionRegistry, self).register(option.name, option,
2595
def register_lazy(self, key, module_name, member_name):
2596
"""Register a new option to be loaded on request.
2598
:param key: the key to request the option later. Since the registration
2599
is lazy, it should be provided and match the option name.
2601
:param module_name: the python path to the module. Such as 'os.path'.
2603
:param member_name: the member of the module to return. If empty or
2604
None, get() will return the module itself.
2606
super(OptionRegistry, self).register_lazy(key,
2607
module_name, member_name)
2609
def get_help(self, key=None):
2610
"""Get the help text associated with the given key"""
2611
option = self.get(key)
2612
the_help = option.help
2613
if callable(the_help):
2614
return the_help(self, key)
2618
option_registry = OptionRegistry()
2621
# Registered options in lexicographical order
2623
option_registry.register(
2624
Option('append_revisions_only',
2625
default=None, from_unicode=bool_from_store, invalid='warning',
2627
Whether to only append revisions to the mainline.
2629
If this is set to true, then it is not possible to change the
2630
existing mainline of the branch.
2632
option_registry.register(
2633
ListOption('acceptable_keys',
2636
List of GPG key patterns which are acceptable for verification.
2638
option_registry.register(
2639
Option('add.maximum_file_size',
2640
default=u'20MB', from_unicode=int_SI_from_store,
2642
Size above which files should be added manually.
2644
Files below this size are added automatically when using ``bzr add`` without
2647
A negative value means disable the size check.
2649
option_registry.register(
2651
default=None, from_unicode=bool_from_store,
2653
Is the branch bound to ``bound_location``.
2655
If set to "True", the branch should act as a checkout, and push each commit to
2656
the bound_location. This option is normally set by ``bind``/``unbind``.
2658
See also: bound_location.
2660
option_registry.register(
2661
Option('bound_location',
2664
The location that commits should go to when acting as a checkout.
2666
This option is normally set by ``bind``.
2670
option_registry.register(
2671
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2673
Whether revisions associated with tags should be fetched.
2675
option_registry.register(
2676
Option('bzr.workingtree.worth_saving_limit', default=10,
2677
from_unicode=int_from_store, invalid='warning',
2679
How many changes before saving the dirstate.
2681
-1 means that we will never rewrite the dirstate file for only
2682
stat-cache changes. Regardless of this setting, we will always rewrite
2683
the dirstate file if a file is added/removed/renamed/etc. This flag only
2684
affects the behavior of updating the dirstate file after we notice that
2685
a file has been touched.
2687
option_registry.register(
2688
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2689
from_unicode=signature_policy_from_unicode,
2691
GPG checking policy.
2693
Possible values: require, ignore, check-available (default)
2695
this option will control whether bzr will require good gpg
2696
signatures, ignore them, or check them if they are
2699
option_registry.register(
2700
Option('child_submit_format',
2701
help='''The preferred format of submissions to this branch.'''))
2702
option_registry.register(
2703
Option('child_submit_to',
2704
help='''Where submissions to this branch are mailed to.'''))
2705
option_registry.register(
2706
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2707
from_unicode=signing_policy_from_unicode,
2711
Possible values: always, never, when-required (default)
2713
This option controls whether bzr will always create
2714
gpg signatures or not on commits.
2716
option_registry.register(
2717
Option('dirstate.fdatasync', default=True,
2718
from_unicode=bool_from_store,
2720
Flush dirstate changes onto physical disk?
2722
If true (default), working tree metadata changes are flushed through the
2723
OS buffers to physical disk. This is somewhat slower, but means data
2724
should not be lost if the machine crashes. See also repository.fdatasync.
2726
option_registry.register(
2727
ListOption('debug_flags', default=[],
2728
help='Debug flags to activate.'))
2729
option_registry.register(
2730
Option('default_format', default='2a',
2731
help='Format used when creating branches.'))
2732
option_registry.register(
2733
Option('dpush_strict', default=None,
2734
from_unicode=bool_from_store,
2736
The default value for ``dpush --strict``.
2738
If present, defines the ``--strict`` option default value for checking
2739
uncommitted changes before pushing into a different VCS without any
2740
custom bzr metadata.
2742
option_registry.register(
2744
help='The command called to launch an editor to enter a message.'))
2745
option_registry.register(
2746
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2747
help='The users identity'))
2748
option_registry.register(
2749
Option('gpg_signing_command',
2752
Program to use use for creating signatures.
2754
This should support at least the -u and --clearsign options.
2756
option_registry.register(
2757
Option('gpg_signing_key',
2760
GPG key to use for signing.
2762
This defaults to the first key associated with the users email.
2764
option_registry.register(
2765
Option('ignore_missing_extensions', default=False,
2766
from_unicode=bool_from_store,
2768
Control the missing extensions warning display.
2770
The warning will not be emitted if set to True.
2772
option_registry.register(
2774
help='Language to translate messages into.'))
2775
option_registry.register(
2776
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2778
Steal locks that appears to be dead.
2780
If set to True, bzr will check if a lock is supposed to be held by an
2781
active process from the same user on the same machine. If the user and
2782
machine match, but no process with the given PID is active, then bzr
2783
will automatically break the stale lock, and create a new lock for
2785
Otherwise, bzr will prompt as normal to break the lock.
2787
option_registry.register(
2788
Option('log_format', default='long',
2790
Log format to use when displaying revisions.
2792
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2793
may be provided by plugins.
2795
option_registry.register_lazy('mail_client', 'bzrlib.mail_client',
2797
option_registry.register(
2798
Option('output_encoding',
2799
help= 'Unicode encoding for output'
2800
' (terminal encoding if not specified).'))
2801
option_registry.register(
2802
Option('parent_location',
2805
The location of the default branch for pull or merge.
2807
This option is normally set when creating a branch, the first ``pull`` or by
2808
``pull --remember``.
2810
option_registry.register(
2811
Option('post_commit', default=None,
2813
Post commit functions.
2815
An ordered list of python functions to call, separated by spaces.
2817
Each function takes branch, rev_id as parameters.
2819
option_registry.register(
2820
Option('public_branch',
2823
A publically-accessible version of this branch.
2825
This implies that the branch setting this option is not publically-accessible.
2826
Used and set by ``bzr send``.
2828
option_registry.register(
2829
Option('push_location',
2832
The location of the default branch for push.
2834
This option is normally set by the first ``push`` or ``push --remember``.
2836
option_registry.register(
2837
Option('push_strict', default=None,
2838
from_unicode=bool_from_store,
2840
The default value for ``push --strict``.
2842
If present, defines the ``--strict`` option default value for checking
2843
uncommitted changes before sending a merge directive.
2845
option_registry.register(
2846
Option('repository.fdatasync', default=True,
2847
from_unicode=bool_from_store,
2849
Flush repository changes onto physical disk?
2851
If true (default), repository changes are flushed through the OS buffers
2852
to physical disk. This is somewhat slower, but means data should not be
2853
lost if the machine crashes. See also dirstate.fdatasync.
2855
option_registry.register_lazy('smtp_server',
2856
'bzrlib.smtp_connection', 'smtp_server')
2857
option_registry.register_lazy('smtp_password',
2858
'bzrlib.smtp_connection', 'smtp_password')
2859
option_registry.register_lazy('smtp_username',
2860
'bzrlib.smtp_connection', 'smtp_username')
2861
option_registry.register(
2862
Option('selftest.timeout',
2864
from_unicode=int_from_store,
2865
help='Abort selftest if one test takes longer than this many seconds',
2868
option_registry.register(
2869
Option('send_strict', default=None,
2870
from_unicode=bool_from_store,
2872
The default value for ``send --strict``.
2874
If present, defines the ``--strict`` option default value for checking
2875
uncommitted changes before sending a bundle.
2878
option_registry.register(
2879
Option('serve.client_timeout',
2880
default=300.0, from_unicode=float_from_store,
2881
help="If we wait for a new request from a client for more than"
2882
" X seconds, consider the client idle, and hangup."))
2883
option_registry.register(
2884
Option('stacked_on_location',
2886
help="""The location where this branch is stacked on."""))
2887
option_registry.register(
2888
Option('submit_branch',
2891
The branch you intend to submit your current work to.
2893
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2894
by the ``submit:`` revision spec.
2896
option_registry.register(
2898
help='''Where submissions from this branch are mailed to.'''))
2899
option_registry.register(
2900
ListOption('suppress_warnings',
2902
help="List of warning classes to suppress."))
2903
option_registry.register(
2904
Option('validate_signatures_in_log', default=False,
2905
from_unicode=bool_from_store, invalid='warning',
2906
help='''Whether to validate signatures in bzr log.'''))
2907
option_registry.register_lazy('ssl.ca_certs',
2908
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2910
option_registry.register_lazy('ssl.cert_reqs',
2911
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2915
class Section(object):
2916
"""A section defines a dict of option name => value.
2918
This is merely a read-only dict which can add some knowledge about the
2919
options. It is *not* a python dict object though and doesn't try to mimic
2923
def __init__(self, section_id, options):
2924
self.id = section_id
2925
# We re-use the dict-like object received
2926
self.options = options
2928
def get(self, name, default=None, expand=True):
2929
return self.options.get(name, default)
2931
def iter_option_names(self):
2932
for k in self.options.iterkeys():
2936
# Mostly for debugging use
2937
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2940
_NewlyCreatedOption = object()
2941
"""Was the option created during the MutableSection lifetime"""
2942
_DeletedOption = object()
2943
"""Was the option deleted during the MutableSection lifetime"""
2946
class MutableSection(Section):
2947
"""A section allowing changes and keeping track of the original values."""
2949
def __init__(self, section_id, options):
2950
super(MutableSection, self).__init__(section_id, options)
2951
self.reset_changes()
2953
def set(self, name, value):
2954
if name not in self.options:
2955
# This is a new option
2956
self.orig[name] = _NewlyCreatedOption
2957
elif name not in self.orig:
2958
self.orig[name] = self.get(name, None)
2959
self.options[name] = value
2961
def remove(self, name):
2962
if name not in self.orig:
2963
self.orig[name] = self.get(name, None)
2964
del self.options[name]
2966
def reset_changes(self):
2969
def apply_changes(self, dirty, store):
2970
"""Apply option value changes.
2972
``self`` has been reloaded from the persistent storage. ``dirty``
2973
contains the changes made since the previous loading.
2975
:param dirty: the mutable section containing the changes.
2977
:param store: the store containing the section
2979
for k, expected in dirty.orig.iteritems():
2980
actual = dirty.get(k, _DeletedOption)
2981
reloaded = self.get(k, _NewlyCreatedOption)
2982
if actual is _DeletedOption:
2983
if k in self.options:
2987
# Report concurrent updates in an ad-hoc way. This should only
2988
# occurs when different processes try to update the same option
2989
# which is not supported (as in: the config framework is not meant
2990
# to be used a sharing mechanism).
2991
if expected != reloaded:
2992
if actual is _DeletedOption:
2993
actual = '<DELETED>'
2994
if reloaded is _NewlyCreatedOption:
2995
reloaded = '<CREATED>'
2996
if expected is _NewlyCreatedOption:
2997
expected = '<CREATED>'
2998
# Someone changed the value since we get it from the persistent
3000
trace.warning(gettext(
3001
"Option {0} in section {1} of {2} was changed"
3002
" from {3} to {4}. The {5} value will be saved.".format(
3003
k, self.id, store.external_url(), expected,
3005
# No need to keep track of these changes
3006
self.reset_changes()
3009
class Store(object):
3010
"""Abstract interface to persistent storage for configuration options."""
3012
readonly_section_class = Section
3013
mutable_section_class = MutableSection
3016
# Which sections need to be saved
3017
self.dirty_sections = []
3019
def is_loaded(self):
3020
"""Returns True if the Store has been loaded.
3022
This is used to implement lazy loading and ensure the persistent
3023
storage is queried only when needed.
3025
raise NotImplementedError(self.is_loaded)
3028
"""Loads the Store from persistent storage."""
3029
raise NotImplementedError(self.load)
3031
def _load_from_string(self, bytes):
3032
"""Create a store from a string in configobj syntax.
3034
:param bytes: A string representing the file content.
3036
raise NotImplementedError(self._load_from_string)
3039
"""Unloads the Store.
3041
This should make is_loaded() return False. This is used when the caller
3042
knows that the persistent storage has changed or may have change since
3045
raise NotImplementedError(self.unload)
3047
def quote(self, value):
3048
"""Quote a configuration option value for storing purposes.
3050
This allows Stacks to present values as they will be stored.
3054
def unquote(self, value):
3055
"""Unquote a configuration option value into unicode.
3057
The received value is quoted as stored.
3062
"""Saves the Store to persistent storage."""
3063
raise NotImplementedError(self.save)
3065
def _need_saving(self):
3066
for s in self.dirty_sections:
3068
# At least one dirty section contains a modification
3072
def apply_changes(self, dirty_sections):
3073
"""Apply changes from dirty sections while checking for coherency.
3075
The Store content is discarded and reloaded from persistent storage to
3076
acquire up-to-date values.
3078
Dirty sections are MutableSection which kept track of the value they
3079
are expected to update.
3081
# We need an up-to-date version from the persistent storage, unload the
3082
# store. The reload will occur when needed (triggered by the first
3083
# get_mutable_section() call below.
3085
# Apply the changes from the preserved dirty sections
3086
for dirty in dirty_sections:
3087
clean = self.get_mutable_section(dirty.id)
3088
clean.apply_changes(dirty, self)
3089
# Everything is clean now
3090
self.dirty_sections = []
3092
def save_changes(self):
3093
"""Saves the Store to persistent storage if changes occurred.
3095
Apply the changes recorded in the mutable sections to a store content
3096
refreshed from persistent storage.
3098
raise NotImplementedError(self.save_changes)
3100
def external_url(self):
3101
raise NotImplementedError(self.external_url)
3103
def get_sections(self):
3104
"""Returns an ordered iterable of existing sections.
3106
:returns: An iterable of (store, section).
3108
raise NotImplementedError(self.get_sections)
3110
def get_mutable_section(self, section_id=None):
3111
"""Returns the specified mutable section.
3113
:param section_id: The section identifier
3115
raise NotImplementedError(self.get_mutable_section)
3118
# Mostly for debugging use
3119
return "<config.%s(%s)>" % (self.__class__.__name__,
3120
self.external_url())
3123
class CommandLineStore(Store):
3124
"A store to carry command line overrides for the config options."""
3126
def __init__(self, opts=None):
3127
super(CommandLineStore, self).__init__()
3134
# The dict should be cleared but not replaced so it can be shared.
3135
self.options.clear()
3137
def _from_cmdline(self, overrides):
3138
# Reset before accepting new definitions
3140
for over in overrides:
3142
name, value = over.split('=', 1)
3144
raise errors.BzrCommandError(
3145
gettext("Invalid '%s', should be of the form 'name=value'")
3147
self.options[name] = value
3149
def external_url(self):
3150
# Not an url but it makes debugging easier and is never needed
3154
def get_sections(self):
3155
yield self, self.readonly_section_class(None, self.options)
3158
class IniFileStore(Store):
3159
"""A config Store using ConfigObj for storage.
3161
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3162
serialize/deserialize the config file.
3166
"""A config Store using ConfigObj for storage.
3168
super(IniFileStore, self).__init__()
3169
self._config_obj = None
3171
def is_loaded(self):
3172
return self._config_obj != None
3175
self._config_obj = None
3176
self.dirty_sections = []
3178
def _load_content(self):
3179
"""Load the config file bytes.
3181
This should be provided by subclasses
3183
:return: Byte string
3185
raise NotImplementedError(self._load_content)
3187
def _save_content(self, content):
3188
"""Save the config file bytes.
3190
This should be provided by subclasses
3192
:param content: Config file bytes to write
3194
raise NotImplementedError(self._save_content)
3197
"""Load the store from the associated file."""
3198
if self.is_loaded():
3200
content = self._load_content()
3201
self._load_from_string(content)
3202
for hook in ConfigHooks['load']:
3205
def _load_from_string(self, bytes):
3206
"""Create a config store from a string.
3208
:param bytes: A string representing the file content.
3210
if self.is_loaded():
3211
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3212
co_input = StringIO(bytes)
3214
# The config files are always stored utf8-encoded
3215
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3217
except configobj.ConfigObjError, e:
3218
self._config_obj = None
3219
raise errors.ParseConfigError(e.errors, self.external_url())
3220
except UnicodeDecodeError:
3221
raise errors.ConfigContentError(self.external_url())
3223
def save_changes(self):
3224
if not self.is_loaded():
3227
if not self._need_saving():
3229
# Preserve the current version
3230
current = self._config_obj
3231
dirty_sections = list(self.dirty_sections)
3232
self.apply_changes(dirty_sections)
3233
# Save to the persistent storage
3237
if not self.is_loaded():
3241
self._config_obj.write(out)
3242
self._save_content(out.getvalue())
3243
for hook in ConfigHooks['save']:
3246
def get_sections(self):
3247
"""Get the configobj section in the file order.
3249
:returns: An iterable of (store, section).
3251
# We need a loaded store
3254
except (errors.NoSuchFile, errors.PermissionDenied):
3255
# If the file can't be read, there is no sections
3257
cobj = self._config_obj
3259
yield self, self.readonly_section_class(None, cobj)
3260
for section_name in cobj.sections:
3262
self.readonly_section_class(section_name,
3263
cobj[section_name]))
3265
def get_mutable_section(self, section_id=None):
3266
# We need a loaded store
3269
except errors.NoSuchFile:
3270
# The file doesn't exist, let's pretend it was empty
3271
self._load_from_string('')
3272
if section_id is None:
3273
section = self._config_obj
3275
section = self._config_obj.setdefault(section_id, {})
3276
mutable_section = self.mutable_section_class(section_id, section)
3277
# All mutable sections can become dirty
3278
self.dirty_sections.append(mutable_section)
3279
return mutable_section
3281
def quote(self, value):
3283
# configobj conflates automagical list values and quoting
3284
self._config_obj.list_values = True
3285
return self._config_obj._quote(value)
3287
self._config_obj.list_values = False
3289
def unquote(self, value):
3290
if value and isinstance(value, basestring):
3291
# _unquote doesn't handle None nor empty strings nor anything that
3292
# is not a string, really.
3293
value = self._config_obj._unquote(value)
3296
def external_url(self):
3297
# Since an IniFileStore can be used without a file (at least in tests),
3298
# it's better to provide something than raising a NotImplementedError.
3299
# All daughter classes are supposed to provide an implementation
3301
return 'In-Process Store, no URL'
3303
class TransportIniFileStore(IniFileStore):
3304
"""IniFileStore that loads files from a transport.
3306
:ivar transport: The transport object where the config file is located.
3308
:ivar file_name: The config file basename in the transport directory.
3311
def __init__(self, transport, file_name):
3312
"""A Store using a ini file on a Transport
3314
:param transport: The transport object where the config file is located.
3315
:param file_name: The config file basename in the transport directory.
3317
super(TransportIniFileStore, self).__init__()
3318
self.transport = transport
3319
self.file_name = file_name
3321
def _load_content(self):
3323
return self.transport.get_bytes(self.file_name)
3324
except errors.PermissionDenied:
3325
trace.warning("Permission denied while trying to load "
3326
"configuration store %s.", self.external_url())
3329
def _save_content(self, content):
3330
self.transport.put_bytes(self.file_name, content)
3332
def external_url(self):
3333
# FIXME: external_url should really accepts an optional relpath
3334
# parameter (bug #750169) :-/ -- vila 2011-04-04
3335
# The following will do in the interim but maybe we don't want to
3336
# expose a path here but rather a config ID and its associated
3337
# object </hand wawe>.
3338
return urlutils.join(self.transport.external_url(), self.file_name)
3341
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3342
# unlockable stores for use with objects that can already ensure the locking
3343
# (think branches). If different stores (not based on ConfigObj) are created,
3344
# they may face the same issue.
3347
class LockableIniFileStore(TransportIniFileStore):
3348
"""A ConfigObjStore using locks on save to ensure store integrity."""
3350
def __init__(self, transport, file_name, lock_dir_name=None):
3351
"""A config Store using ConfigObj for storage.
3353
:param transport: The transport object where the config file is located.
3355
:param file_name: The config file basename in the transport directory.
3357
if lock_dir_name is None:
3358
lock_dir_name = 'lock'
3359
self.lock_dir_name = lock_dir_name
3360
super(LockableIniFileStore, self).__init__(transport, file_name)
3361
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3363
def lock_write(self, token=None):
3364
"""Takes a write lock in the directory containing the config file.
3366
If the directory doesn't exist it is created.
3368
# FIXME: This doesn't check the ownership of the created directories as
3369
# ensure_config_dir_exists does. It should if the transport is local
3370
# -- vila 2011-04-06
3371
self.transport.create_prefix()
3372
return self._lock.lock_write(token)
3377
def break_lock(self):
3378
self._lock.break_lock()
3382
# We need to be able to override the undecorated implementation
3383
self.save_without_locking()
3385
def save_without_locking(self):
3386
super(LockableIniFileStore, self).save()
3389
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3390
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3391
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3393
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3394
# functions or a registry will make it easier and clearer for tests, focusing
3395
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3396
# on a poolie's remark)
3397
class GlobalStore(LockableIniFileStore):
3399
def __init__(self, possible_transports=None):
3400
t = transport.get_transport_from_path(
3401
config_dir(), possible_transports=possible_transports)
3402
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3406
class LocationStore(LockableIniFileStore):
3408
def __init__(self, possible_transports=None):
3409
t = transport.get_transport_from_path(
3410
config_dir(), possible_transports=possible_transports)
3411
super(LocationStore, self).__init__(t, 'locations.conf')
3412
self.id = 'locations'
3415
class BranchStore(TransportIniFileStore):
3417
def __init__(self, branch):
3418
super(BranchStore, self).__init__(branch.control_transport,
3420
self.branch = branch
3423
def lock_write(self, token=None):
3424
return self.branch.lock_write(token)
3427
return self.branch.unlock()
3431
# We need to be able to override the undecorated implementation
3432
self.save_without_locking()
3434
def save_without_locking(self):
3435
super(BranchStore, self).save()
3438
class ControlStore(LockableIniFileStore):
3440
def __init__(self, bzrdir):
3441
super(ControlStore, self).__init__(bzrdir.transport,
3443
lock_dir_name='branch_lock')
3447
class SectionMatcher(object):
3448
"""Select sections into a given Store.
3450
This is intended to be used to postpone getting an iterable of sections
3454
def __init__(self, store):
3457
def get_sections(self):
3458
# This is where we require loading the store so we can see all defined
3460
sections = self.store.get_sections()
3461
# Walk the revisions in the order provided
3462
for store, s in sections:
3466
def match(self, section):
3467
"""Does the proposed section match.
3469
:param section: A Section object.
3471
:returns: True if the section matches, False otherwise.
3473
raise NotImplementedError(self.match)
3476
class NameMatcher(SectionMatcher):
3478
def __init__(self, store, section_id):
3479
super(NameMatcher, self).__init__(store)
3480
self.section_id = section_id
3482
def match(self, section):
3483
return section.id == self.section_id
3486
class LocationSection(Section):
3488
def __init__(self, section, extra_path):
3489
super(LocationSection, self).__init__(section.id, section.options)
3490
self.extra_path = extra_path
3491
self.locals = {'relpath': extra_path,
3492
'basename': urlutils.basename(extra_path)}
3494
def get(self, name, default=None, expand=True):
3495
value = super(LocationSection, self).get(name, default)
3496
if value is not None and expand:
3497
policy_name = self.get(name + ':policy', None)
3498
policy = _policy_value.get(policy_name, POLICY_NONE)
3499
if policy == POLICY_APPENDPATH:
3500
value = urlutils.join(value, self.extra_path)
3501
# expand section local options right now (since POLICY_APPENDPATH
3502
# will never add options references, it's ok to expand after it).
3504
for is_ref, chunk in iter_option_refs(value):
3506
chunks.append(chunk)
3509
if ref in self.locals:
3510
chunks.append(self.locals[ref])
3512
chunks.append(chunk)
3513
value = ''.join(chunks)
3517
class StartingPathMatcher(SectionMatcher):
3518
"""Select sections for a given location respecting the Store order."""
3520
# FIXME: Both local paths and urls can be used for section names as well as
3521
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3522
# inherited the fuzziness from the previous ``LocationConfig``
3523
# implementation. We probably need to revisit which encoding is allowed for
3524
# both ``location`` and section names and how we normalize
3525
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3526
# related too. -- vila 2012-01-04
3528
def __init__(self, store, location):
3529
super(StartingPathMatcher, self).__init__(store)
3530
if location.startswith('file://'):
3531
location = urlutils.local_path_from_url(location)
3532
self.location = location
3534
def get_sections(self):
3535
"""Get all sections matching ``location`` in the store.
3537
The most generic sections are described first in the store, then more
3538
specific ones can be provided for reduced scopes.
3540
The returned section are therefore returned in the reversed order so
3541
the most specific ones can be found first.
3543
location_parts = self.location.rstrip('/').split('/')
3546
# Later sections are more specific, they should be returned first
3547
for _, section in reversed(list(store.get_sections())):
3548
if section.id is None:
3549
# The no-name section is always included if present
3550
yield store, LocationSection(section, self.location)
3552
section_path = section.id
3553
if section_path.startswith('file://'):
3554
# the location is already a local path or URL, convert the
3555
# section id to the same format
3556
section_path = urlutils.local_path_from_url(section_path)
3557
if (self.location.startswith(section_path)
3558
or fnmatch.fnmatch(self.location, section_path)):
3559
section_parts = section_path.rstrip('/').split('/')
3560
extra_path = '/'.join(location_parts[len(section_parts):])
3561
yield store, LocationSection(section, extra_path)
3564
class LocationMatcher(SectionMatcher):
3566
def __init__(self, store, location):
3567
super(LocationMatcher, self).__init__(store)
3568
if location.startswith('file://'):
3569
location = urlutils.local_path_from_url(location)
3570
self.location = location
3572
def _get_matching_sections(self):
3573
"""Get all sections matching ``location``."""
3574
# We slightly diverge from LocalConfig here by allowing the no-name
3575
# section as the most generic one and the lower priority.
3576
no_name_section = None
3578
# Filter out the no_name_section so _iter_for_location_by_parts can be
3579
# used (it assumes all sections have a name).
3580
for _, section in self.store.get_sections():
3581
if section.id is None:
3582
no_name_section = section
3584
all_sections.append(section)
3585
# Unfortunately _iter_for_location_by_parts deals with section names so
3586
# we have to resync.
3587
filtered_sections = _iter_for_location_by_parts(
3588
[s.id for s in all_sections], self.location)
3589
iter_all_sections = iter(all_sections)
3590
matching_sections = []
3591
if no_name_section is not None:
3592
matching_sections.append(
3593
(0, LocationSection(no_name_section, self.location)))
3594
for section_id, extra_path, length in filtered_sections:
3595
# a section id is unique for a given store so it's safe to take the
3596
# first matching section while iterating. Also, all filtered
3597
# sections are part of 'all_sections' and will always be found
3600
section = iter_all_sections.next()
3601
if section_id == section.id:
3602
matching_sections.append(
3603
(length, LocationSection(section, extra_path)))
3605
return matching_sections
3607
def get_sections(self):
3608
# Override the default implementation as we want to change the order
3609
matching_sections = self._get_matching_sections()
3610
# We want the longest (aka more specific) locations first
3611
sections = sorted(matching_sections,
3612
key=lambda (length, section): (length, section.id),
3614
# Sections mentioning 'ignore_parents' restrict the selection
3615
for _, section in sections:
3616
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3617
ignore = section.get('ignore_parents', None)
3618
if ignore is not None:
3619
ignore = ui.bool_from_string(ignore)
3622
# Finally, we have a valid section
3623
yield self.store, section
3626
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3627
"""Describes an expandable option reference.
3629
We want to match the most embedded reference first.
3631
I.e. for '{{foo}}' we will get '{foo}',
3632
for '{bar{baz}}' we will get '{baz}'
3635
def iter_option_refs(string):
3636
# Split isolate refs so every other chunk is a ref
3638
for chunk in _option_ref_re.split(string):
3643
class Stack(object):
3644
"""A stack of configurations where an option can be defined"""
3646
def __init__(self, sections_def, store=None, mutable_section_id=None):
3647
"""Creates a stack of sections with an optional store for changes.
3649
:param sections_def: A list of Section or callables that returns an
3650
iterable of Section. This defines the Sections for the Stack and
3651
can be called repeatedly if needed.
3653
:param store: The optional Store where modifications will be
3654
recorded. If none is specified, no modifications can be done.
3656
:param mutable_section_id: The id of the MutableSection where changes
3657
are recorded. This requires the ``store`` parameter to be
3660
self.sections_def = sections_def
3662
self.mutable_section_id = mutable_section_id
3664
def get(self, name, expand=None):
3665
"""Return the *first* option value found in the sections.
3667
This is where we guarantee that sections coming from Store are loaded
3668
lazily: the loading is delayed until we need to either check that an
3669
option exists or get its value, which in turn may require to discover
3670
in which sections it can be defined. Both of these (section and option
3671
existence) require loading the store (even partially).
3673
:param name: The queried option.
3675
:param expand: Whether options references should be expanded.
3677
:returns: The value of the option.
3679
# FIXME: No caching of options nor sections yet -- vila 20110503
3681
expand = _get_expand_default_value()
3683
found_store = None # Where the option value has been found
3684
# If the option is registered, it may provide additional info about
3687
opt = option_registry.get(name)
3692
def expand_and_convert(val):
3693
# This may need to be called in different contexts if the value is
3694
# None or ends up being None during expansion or conversion.
3697
if isinstance(val, basestring):
3698
val = self._expand_options_in_string(val)
3700
trace.warning('Cannot expand "%s":'
3701
' %s does not support option expansion'
3702
% (name, type(val)))
3704
val = found_store.unquote(val)
3706
val = opt.convert_from_unicode(found_store, val)
3709
# First of all, check if the environment can override the configuration
3711
if opt is not None and opt.override_from_env:
3712
value = opt.get_override()
3713
value = expand_and_convert(value)
3715
# Ensuring lazy loading is achieved by delaying section matching
3716
# (which implies querying the persistent storage) until it can't be
3717
# avoided anymore by using callables to describe (possibly empty)
3719
for sections in self.sections_def:
3720
for store, section in sections():
3721
value = section.get(name)
3722
if value is not None:
3725
if value is not None:
3727
value = expand_and_convert(value)
3728
if opt is not None and value is None:
3729
# If the option is registered, it may provide a default value
3730
value = opt.get_default()
3731
value = expand_and_convert(value)
3732
for hook in ConfigHooks['get']:
3733
hook(self, name, value)
3736
def expand_options(self, string, env=None):
3737
"""Expand option references in the string in the configuration context.
3739
:param string: The string containing option(s) to expand.
3741
:param env: An option dict defining additional configuration options or
3742
overriding existing ones.
3744
:returns: The expanded string.
3746
return self._expand_options_in_string(string, env)
3748
def _expand_options_in_string(self, string, env=None, _refs=None):
3749
"""Expand options in the string in the configuration context.
3751
:param string: The string to be expanded.
3753
:param env: An option dict defining additional configuration options or
3754
overriding existing ones.
3756
:param _refs: Private list (FIFO) containing the options being expanded
3759
:returns: The expanded string.
3762
# Not much to expand there
3765
# What references are currently resolved (to detect loops)
3768
# We need to iterate until no more refs appear ({{foo}} will need two
3769
# iterations for example).
3774
for is_ref, chunk in iter_option_refs(result):
3776
chunks.append(chunk)
3781
raise errors.OptionExpansionLoop(string, _refs)
3783
value = self._expand_option(name, env, _refs)
3785
raise errors.ExpandingUnknownOption(name, string)
3786
chunks.append(value)
3788
result = ''.join(chunks)
3791
def _expand_option(self, name, env, _refs):
3792
if env is not None and name in env:
3793
# Special case, values provided in env takes precedence over
3797
value = self.get(name, expand=False)
3798
value = self._expand_options_in_string(value, env, _refs)
3801
def _get_mutable_section(self):
3802
"""Get the MutableSection for the Stack.
3804
This is where we guarantee that the mutable section is lazily loaded:
3805
this means we won't load the corresponding store before setting a value
3806
or deleting an option. In practice the store will often be loaded but
3807
this helps catching some programming errors.
3810
section = store.get_mutable_section(self.mutable_section_id)
3811
return store, section
3813
def set(self, name, value):
3814
"""Set a new value for the option."""
3815
store, section = self._get_mutable_section()
3816
section.set(name, store.quote(value))
3817
for hook in ConfigHooks['set']:
3818
hook(self, name, value)
3820
def remove(self, name):
3821
"""Remove an existing option."""
3822
_, section = self._get_mutable_section()
3823
section.remove(name)
3824
for hook in ConfigHooks['remove']:
3828
# Mostly for debugging use
3829
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3831
def _get_overrides(self):
3832
# Hack around library_state.initialize never called
3833
if bzrlib.global_state is not None:
3834
return bzrlib.global_state.cmdline_overrides.get_sections()
3838
class MemoryStack(Stack):
3839
"""A configuration stack defined from a string.
3841
This is mainly intended for tests and requires no disk resources.
3844
def __init__(self, content=None):
3845
"""Create an in-memory stack from a given content.
3847
It uses a single store based on configobj and support reading and
3850
:param content: The initial content of the store. If None, the store is
3851
not loaded and ``_load_from_string`` can and should be used if
3854
store = IniFileStore()
3855
if content is not None:
3856
store._load_from_string(content)
3857
super(MemoryStack, self).__init__(
3858
[store.get_sections], store)
3861
class _CompatibleStack(Stack):
3862
"""Place holder for compatibility with previous design.
3864
This is intended to ease the transition from the Config-based design to the
3865
Stack-based design and should not be used nor relied upon by plugins.
3867
One assumption made here is that the daughter classes will all use Stores
3868
derived from LockableIniFileStore).
3870
It implements set() and remove () by re-loading the store before applying
3871
the modification and saving it.
3873
The long term plan being to implement a single write by store to save
3874
all modifications, this class should not be used in the interim.
3877
def set(self, name, value):
3880
super(_CompatibleStack, self).set(name, value)
3881
# Force a write to persistent storage
3884
def remove(self, name):
3887
super(_CompatibleStack, self).remove(name)
3888
# Force a write to persistent storage
3892
class GlobalStack(_CompatibleStack):
3893
"""Global options only stack.
3895
The following sections are queried:
3897
* command-line overrides,
3899
* the 'DEFAULT' section in bazaar.conf
3901
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3906
gstore = GlobalStore()
3907
super(GlobalStack, self).__init__(
3908
[self._get_overrides,
3909
NameMatcher(gstore, 'DEFAULT').get_sections],
3910
gstore, mutable_section_id='DEFAULT')
3913
class LocationStack(_CompatibleStack):
3914
"""Per-location options falling back to global options stack.
3917
The following sections are queried:
3919
* command-line overrides,
3921
* the sections matching ``location`` in ``locations.conf``, the order being
3922
defined by the number of path components in the section glob, higher
3923
numbers first (from most specific section to most generic).
3925
* the 'DEFAULT' section in bazaar.conf
3927
This stack will use the ``location`` section in locations.conf as its
3931
def __init__(self, location):
3932
"""Make a new stack for a location and global configuration.
3934
:param location: A URL prefix to """
3935
lstore = LocationStore()
3936
if location.startswith('file://'):
3937
location = urlutils.local_path_from_url(location)
3938
gstore = GlobalStore()
3939
super(LocationStack, self).__init__(
3940
[self._get_overrides,
3941
LocationMatcher(lstore, location).get_sections,
3942
NameMatcher(gstore, 'DEFAULT').get_sections],
3943
lstore, mutable_section_id=location)
3946
class BranchStack(_CompatibleStack):
3947
"""Per-location options falling back to branch then global options stack.
3949
The following sections are queried:
3951
* command-line overrides,
3953
* the sections matching ``location`` in ``locations.conf``, the order being
3954
defined by the number of path components in the section glob, higher
3955
numbers first (from most specific section to most generic),
3957
* the no-name section in branch.conf,
3959
* the ``DEFAULT`` section in ``bazaar.conf``.
3961
This stack will use the no-name section in ``branch.conf`` as its
3965
def __init__(self, branch):
3966
lstore = LocationStore()
3967
bstore = branch._get_config_store()
3968
gstore = GlobalStore()
3969
super(BranchStack, self).__init__(
3970
[self._get_overrides,
3971
LocationMatcher(lstore, branch.base).get_sections,
3972
NameMatcher(bstore, None).get_sections,
3973
NameMatcher(gstore, 'DEFAULT').get_sections],
3975
self.branch = branch
3978
class RemoteControlStack(_CompatibleStack):
3979
"""Remote control-only options stack."""
3981
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3982
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3983
# control.conf and is used only for stack options.
3985
def __init__(self, bzrdir):
3986
cstore = bzrdir._get_config_store()
3987
super(RemoteControlStack, self).__init__(
3988
[NameMatcher(cstore, None).get_sections],
3990
self.bzrdir = bzrdir
3993
class BranchOnlyStack(_CompatibleStack):
3994
"""Branch-only options stack."""
3996
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3997
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3998
# -- vila 2011-12-16
4000
def __init__(self, branch):
4001
bstore = branch._get_config_store()
4002
super(BranchOnlyStack, self).__init__(
4003
[NameMatcher(bstore, None).get_sections],
4005
self.branch = branch
4008
# Use a an empty dict to initialize an empty configobj avoiding all
4009
# parsing and encoding checks
4010
_quoting_config = configobj.ConfigObj(
4011
{}, encoding='utf-8', interpolation=False, list_values=True)
4013
class cmd_config(commands.Command):
4014
__doc__ = """Display, set or remove a configuration option.
4016
Display the active value for a given option.
4018
If --all is specified, NAME is interpreted as a regular expression and all
4019
matching options are displayed mentioning their scope. The active value
4020
that bzr will take into account is the first one displayed for each option.
4022
If no NAME is given, --all .* is implied.
4024
Setting a value is achieved by using name=value without spaces. The value
4025
is set in the most relevant scope and can be checked by displaying the
4029
takes_args = ['name?']
4033
# FIXME: This should be a registry option so that plugins can register
4034
# their own config files (or not) and will also address
4035
# http://pad.lv/788991 -- vila 20101115
4036
commands.Option('scope', help='Reduce the scope to the specified'
4037
' configuration file.',
4039
commands.Option('all',
4040
help='Display all the defined values for the matching options.',
4042
commands.Option('remove', help='Remove the option from'
4043
' the configuration file.'),
4046
_see_also = ['configuration']
4048
@commands.display_command
4049
def run(self, name=None, all=False, directory=None, scope=None,
4051
if directory is None:
4053
directory = urlutils.normalize_url(directory)
4055
raise errors.BzrError(
4056
'--all and --remove are mutually exclusive.')
4058
# Delete the option in the given scope
4059
self._remove_config_option(name, directory, scope)
4061
# Defaults to all options
4062
self._show_matching_options('.*', directory, scope)
4065
name, value = name.split('=', 1)
4067
# Display the option(s) value(s)
4069
self._show_matching_options(name, directory, scope)
4071
self._show_value(name, directory, scope)
4074
raise errors.BzrError(
4075
'Only one option can be set.')
4076
# Set the option value
4077
self._set_config_option(name, value, directory, scope)
4079
def _get_stack(self, directory, scope=None):
4080
"""Get the configuration stack specified by ``directory`` and ``scope``.
4082
:param directory: Where the configurations are derived from.
4084
:param scope: A specific config to start from.
4086
# FIXME: scope should allow access to plugin-specific stacks (even
4087
# reduced to the plugin-specific store), related to
4088
# http://pad.lv/788991 -- vila 2011-11-15
4089
if scope is not None:
4090
if scope == 'bazaar':
4091
return GlobalStack()
4092
elif scope == 'locations':
4093
return LocationStack(directory)
4094
elif scope == 'branch':
4096
controldir.ControlDir.open_containing_tree_or_branch(
4098
return br.get_config_stack()
4099
raise errors.NoSuchConfig(scope)
4103
controldir.ControlDir.open_containing_tree_or_branch(
4105
return br.get_config_stack()
4106
except errors.NotBranchError:
4107
return LocationStack(directory)
4109
def _show_value(self, name, directory, scope):
4110
conf = self._get_stack(directory, scope)
4111
value = conf.get(name, expand=True)
4112
if value is not None:
4113
# Quote the value appropriately
4114
value = _quoting_config._quote(value)
4115
self.outf.write('%s\n' % (value,))
4117
raise errors.NoSuchConfigOption(name)
4119
def _show_matching_options(self, name, directory, scope):
4120
name = lazy_regex.lazy_compile(name)
4121
# We want any error in the regexp to be raised *now* so we need to
4122
# avoid the delay introduced by the lazy regexp. But, we still do
4123
# want the nicer errors raised by lazy_regex.
4124
name._compile_and_collapse()
4127
conf = self._get_stack(directory, scope)
4128
for sections in conf.sections_def:
4129
for store, section in sections():
4130
for oname in section.iter_option_names():
4131
if name.search(oname):
4132
if cur_store_id != store.id:
4133
# Explain where the options are defined
4134
self.outf.write('%s:\n' % (store.id,))
4135
cur_store_id = store.id
4137
if (section.id is not None
4138
and cur_section != section.id):
4139
# Display the section id as it appears in the store
4140
# (None doesn't appear by definition)
4141
self.outf.write(' [%s]\n' % (section.id,))
4142
cur_section = section.id
4143
value = section.get(oname, expand=False)
4144
# Since we don't use the stack, we need to restore a
4147
opt = option_registry.get(oname)
4148
value = opt.convert_from_unicode(store, value)
4150
value = store.unquote(value)
4151
value = _quoting_config._quote(value)
4152
self.outf.write(' %s = %s\n' % (oname, value))
4154
def _set_config_option(self, name, value, directory, scope):
4155
conf = self._get_stack(directory, scope)
4156
conf.set(name, value)
4158
def _remove_config_option(self, name, directory, scope):
4160
raise errors.BzrCommandError(
4161
'--remove expects an option to remove.')
4162
conf = self._get_stack(directory, scope)
4166
raise errors.NoSuchConfigOption(name)
4171
# We need adapters that can build a Store or a Stack in a test context. Test
4172
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4173
# themselves. The builder will receive a test instance and should return a
4174
# ready-to-use store or stack. Plugins that define new store/stacks can also
4175
# register themselves here to be tested against the tests defined in
4176
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4177
# for the same test.
4179
# The registered object should be a callable receiving a test instance
4180
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4182
test_store_builder_registry = registry.Registry()
4184
# The registered object should be a callable receiving a test instance
4185
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4187
test_stack_builder_registry = registry.Registry()