2229
1144
configobj[name] = value
2231
1146
configobj.setdefault(section, {})[name] = value
2232
for hook in OldConfigHooks['set']:
2233
hook(self, name, value)
2234
self._set_configobj(configobj)
2236
def remove_option(self, option_name, section_name=None):
2237
configobj = self._get_configobj()
2238
if section_name is None:
2239
del configobj[option_name]
2241
del configobj[section_name][option_name]
2242
for hook in OldConfigHooks['remove']:
2243
hook(self, option_name)
2244
self._set_configobj(configobj)
2246
def _get_config_file(self):
2248
f = StringIO(self._transport.get_bytes(self._filename))
2249
for hook in OldConfigHooks['load']:
2252
except errors.NoSuchFile:
2254
except errors.PermissionDenied, e:
2255
trace.warning("Permission denied while trying to open "
2256
"configuration file %s.", urlutils.unescape_for_display(
2257
urlutils.join(self._transport.base, self._filename), "utf-8"))
2260
def _external_url(self):
2261
return urlutils.join(self._transport.external_url(), self._filename)
1147
self._set_configobj(configobj)
2263
1149
def _get_configobj(self):
2264
f = self._get_config_file()
2267
conf = ConfigObj(f, encoding='utf-8')
2268
except configobj.ConfigObjError, e:
2269
raise errors.ParseConfigError(e.errors, self._external_url())
2270
except UnicodeDecodeError:
2271
raise errors.ConfigContentError(self._external_url())
1151
return ConfigObj(self._transport.get(self._filename),
1153
except errors.NoSuchFile:
1154
return ConfigObj(encoding='utf-8')
2276
1156
def _set_configobj(self, configobj):
2277
1157
out_file = StringIO()
2278
1158
configobj.write(out_file)
2279
1159
out_file.seek(0)
2280
1160
self._transport.put_file(self._filename, out_file)
2281
for hook in OldConfigHooks['save']:
2285
class Option(object):
2286
"""An option definition.
2288
The option *values* are stored in config files and found in sections.
2290
Here we define various properties about the option itself, its default
2291
value, how to convert it from stores, what to do when invalid values are
2292
encoutered, in which config files it can be stored.
2295
def __init__(self, name, override_from_env=None,
2296
default=None, default_from_env=None,
2297
help=None, from_unicode=None, invalid=None, unquote=True):
2298
"""Build an option definition.
2300
:param name: the name used to refer to the option.
2302
:param override_from_env: A list of environment variables which can
2303
provide override any configuration setting.
2305
:param default: the default value to use when none exist in the config
2306
stores. This is either a string that ``from_unicode`` will convert
2307
into the proper type, a callable returning a unicode string so that
2308
``from_unicode`` can be used on the return value, or a python
2309
object that can be stringified (so only the empty list is supported
2312
:param default_from_env: A list of environment variables which can
2313
provide a default value. 'default' will be used only if none of the
2314
variables specified here are set in the environment.
2316
:param help: a doc string to explain the option to the user.
2318
:param from_unicode: a callable to convert the unicode string
2319
representing the option value in a store. This is not called for
2322
:param invalid: the action to be taken when an invalid value is
2323
encountered in a store. This is called only when from_unicode is
2324
invoked to convert a string and returns None or raise ValueError or
2325
TypeError. Accepted values are: None (ignore invalid values),
2326
'warning' (emit a warning), 'error' (emit an error message and
2329
:param unquote: should the unicode value be unquoted before conversion.
2330
This should be used only when the store providing the values cannot
2331
safely unquote them (see http://pad.lv/906897). It is provided so
2332
daughter classes can handle the quoting themselves.
2334
if override_from_env is None:
2335
override_from_env = []
2336
if default_from_env is None:
2337
default_from_env = []
2339
self.override_from_env = override_from_env
2340
# Convert the default value to a unicode string so all values are
2341
# strings internally before conversion (via from_unicode) is attempted.
2344
elif isinstance(default, list):
2345
# Only the empty list is supported
2347
raise AssertionError(
2348
'Only empty lists are supported as default values')
2350
elif isinstance(default, (str, unicode, bool, int, float)):
2351
# Rely on python to convert strings, booleans and integers
2352
self.default = u'%s' % (default,)
2353
elif callable(default):
2354
self.default = default
2356
# other python objects are not expected
2357
raise AssertionError('%r is not supported as a default value'
2359
self.default_from_env = default_from_env
2361
self.from_unicode = from_unicode
2362
self.unquote = unquote
2363
if invalid and invalid not in ('warning', 'error'):
2364
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2365
self.invalid = invalid
2371
def convert_from_unicode(self, store, unicode_value):
2372
if self.unquote and store is not None and unicode_value is not None:
2373
unicode_value = store.unquote(unicode_value)
2374
if self.from_unicode is None or unicode_value is None:
2375
# Don't convert or nothing to convert
2376
return unicode_value
2378
converted = self.from_unicode(unicode_value)
2379
except (ValueError, TypeError):
2380
# Invalid values are ignored
2382
if converted is None and self.invalid is not None:
2383
# The conversion failed
2384
if self.invalid == 'warning':
2385
trace.warning('Value "%s" is not valid for "%s"',
2386
unicode_value, self.name)
2387
elif self.invalid == 'error':
2388
raise errors.ConfigOptionValueError(self.name, unicode_value)
2391
def get_override(self):
2393
for var in self.override_from_env:
2395
# If the env variable is defined, its value takes precedence
2396
value = os.environ[var].decode(osutils.get_user_encoding())
2402
def get_default(self):
2404
for var in self.default_from_env:
2406
# If the env variable is defined, its value is the default one
2407
value = os.environ[var].decode(osutils.get_user_encoding())
2412
# Otherwise, fallback to the value defined at registration
2413
if callable(self.default):
2414
value = self.default()
2415
if not isinstance(value, unicode):
2416
raise AssertionError(
2417
"Callable default value for '%s' should be unicode"
2420
value = self.default
2423
def get_help_topic(self):
2426
def get_help_text(self, additional_see_also=None, plain=True):
2428
from bzrlib import help_topics
2429
result += help_topics._format_see_also(additional_see_also)
2431
result = help_topics.help_as_plain_text(result)
2435
# Predefined converters to get proper values from store
2437
def bool_from_store(unicode_str):
2438
return ui.bool_from_string(unicode_str)
2441
def int_from_store(unicode_str):
2442
return int(unicode_str)
2445
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2447
def int_SI_from_store(unicode_str):
2448
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2450
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2451
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2454
:return Integer, expanded to its base-10 value if a proper SI unit is
2455
found, None otherwise.
2457
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2458
p = re.compile(regexp, re.IGNORECASE)
2459
m = p.match(unicode_str)
2462
val, _, unit = m.groups()
2466
coeff = _unit_suffixes[unit.upper()]
2468
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2473
def float_from_store(unicode_str):
2474
return float(unicode_str)
2477
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2479
_list_converter_config = configobj.ConfigObj(
2480
{}, encoding='utf-8', list_values=True, interpolation=False)
2483
class ListOption(Option):
2485
def __init__(self, name, default=None, default_from_env=None,
2486
help=None, invalid=None):
2487
"""A list Option definition.
2489
This overrides the base class so the conversion from a unicode string
2490
can take quoting into account.
2492
super(ListOption, self).__init__(
2493
name, default=default, default_from_env=default_from_env,
2494
from_unicode=self.from_unicode, help=help,
2495
invalid=invalid, unquote=False)
2497
def from_unicode(self, unicode_str):
2498
if not isinstance(unicode_str, basestring):
2500
# Now inject our string directly as unicode. All callers got their
2501
# value from configobj, so values that need to be quoted are already
2503
_list_converter_config.reset()
2504
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2505
maybe_list = _list_converter_config['list']
2506
if isinstance(maybe_list, basestring):
2508
# A single value, most probably the user forgot (or didn't care
2509
# to add) the final ','
2512
# The empty string, convert to empty list
2515
# We rely on ConfigObj providing us with a list already
2520
class RegistryOption(Option):
2521
"""Option for a choice from a registry."""
2523
def __init__(self, name, registry, default_from_env=None,
2524
help=None, invalid=None):
2525
"""A registry based Option definition.
2527
This overrides the base class so the conversion from a unicode string
2528
can take quoting into account.
2530
super(RegistryOption, self).__init__(
2531
name, default=lambda: unicode(registry.default_key),
2532
default_from_env=default_from_env,
2533
from_unicode=self.from_unicode, help=help,
2534
invalid=invalid, unquote=False)
2535
self.registry = registry
2537
def from_unicode(self, unicode_str):
2538
if not isinstance(unicode_str, basestring):
2541
return self.registry.get(unicode_str)
2544
"Invalid value %s for %s."
2545
"See help for a list of possible values." % (unicode_str,
2550
ret = [self._help, "\n\nThe following values are supported:\n"]
2551
for key in self.registry.keys():
2552
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2556
class OptionRegistry(registry.Registry):
2557
"""Register config options by their name.
2559
This overrides ``registry.Registry`` to simplify registration by acquiring
2560
some information from the option object itself.
2563
def register(self, option):
2564
"""Register a new option to its name.
2566
:param option: The option to register. Its name is used as the key.
2568
super(OptionRegistry, self).register(option.name, option,
2571
def register_lazy(self, key, module_name, member_name):
2572
"""Register a new option to be loaded on request.
2574
:param key: the key to request the option later. Since the registration
2575
is lazy, it should be provided and match the option name.
2577
:param module_name: the python path to the module. Such as 'os.path'.
2579
:param member_name: the member of the module to return. If empty or
2580
None, get() will return the module itself.
2582
super(OptionRegistry, self).register_lazy(key,
2583
module_name, member_name)
2585
def get_help(self, key=None):
2586
"""Get the help text associated with the given key"""
2587
option = self.get(key)
2588
the_help = option.help
2589
if callable(the_help):
2590
return the_help(self, key)
2594
option_registry = OptionRegistry()
2597
# Registered options in lexicographical order
2599
option_registry.register(
2600
Option('append_revisions_only',
2601
default=None, from_unicode=bool_from_store, invalid='warning',
2603
Whether to only append revisions to the mainline.
2605
If this is set to true, then it is not possible to change the
2606
existing mainline of the branch.
2608
option_registry.register(
2609
ListOption('acceptable_keys',
2612
List of GPG key patterns which are acceptable for verification.
2614
option_registry.register(
2615
Option('add.maximum_file_size',
2616
default=u'20MB', from_unicode=int_SI_from_store,
2618
Size above which files should be added manually.
2620
Files below this size are added automatically when using ``bzr add`` without
2623
A negative value means disable the size check.
2625
option_registry.register(
2627
default=None, from_unicode=bool_from_store,
2629
Is the branch bound to ``bound_location``.
2631
If set to "True", the branch should act as a checkout, and push each commit to
2632
the bound_location. This option is normally set by ``bind``/``unbind``.
2634
See also: bound_location.
2636
option_registry.register(
2637
Option('bound_location',
2640
The location that commits should go to when acting as a checkout.
2642
This option is normally set by ``bind``.
2646
option_registry.register(
2647
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2649
Whether revisions associated with tags should be fetched.
2651
option_registry.register_lazy(
2652
'bzr.transform.orphan_policy', 'bzrlib.transform', 'opt_transform_orphan')
2653
option_registry.register(
2654
Option('bzr.workingtree.worth_saving_limit', default=10,
2655
from_unicode=int_from_store, invalid='warning',
2657
How many changes before saving the dirstate.
2659
-1 means that we will never rewrite the dirstate file for only
2660
stat-cache changes. Regardless of this setting, we will always rewrite
2661
the dirstate file if a file is added/removed/renamed/etc. This flag only
2662
affects the behavior of updating the dirstate file after we notice that
2663
a file has been touched.
2665
option_registry.register(
2666
Option('bugtracker', default=None,
2668
Default bug tracker to use.
2670
This bug tracker will be used for example when marking bugs
2671
as fixed using ``bzr commit --fixes``, if no explicit
2672
bug tracker was specified.
2674
option_registry.register(
2675
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2676
from_unicode=signature_policy_from_unicode,
2678
GPG checking policy.
2680
Possible values: require, ignore, check-available (default)
2682
this option will control whether bzr will require good gpg
2683
signatures, ignore them, or check them if they are
2686
option_registry.register(
2687
Option('child_submit_format',
2688
help='''The preferred format of submissions to this branch.'''))
2689
option_registry.register(
2690
Option('child_submit_to',
2691
help='''Where submissions to this branch are mailed to.'''))
2692
option_registry.register(
2693
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2694
from_unicode=signing_policy_from_unicode,
2698
Possible values: always, never, when-required (default)
2700
This option controls whether bzr will always create
2701
gpg signatures or not on commits.
2703
option_registry.register(
2704
Option('dirstate.fdatasync', default=True,
2705
from_unicode=bool_from_store,
2707
Flush dirstate changes onto physical disk?
2709
If true (default), working tree metadata changes are flushed through the
2710
OS buffers to physical disk. This is somewhat slower, but means data
2711
should not be lost if the machine crashes. See also repository.fdatasync.
2713
option_registry.register(
2714
ListOption('debug_flags', default=[],
2715
help='Debug flags to activate.'))
2716
option_registry.register(
2717
Option('default_format', default='2a',
2718
help='Format used when creating branches.'))
2719
option_registry.register(
2720
Option('dpush_strict', default=None,
2721
from_unicode=bool_from_store,
2723
The default value for ``dpush --strict``.
2725
If present, defines the ``--strict`` option default value for checking
2726
uncommitted changes before pushing into a different VCS without any
2727
custom bzr metadata.
2729
option_registry.register(
2731
help='The command called to launch an editor to enter a message.'))
2732
option_registry.register(
2733
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2734
help='The users identity'))
2735
option_registry.register(
2736
Option('gpg_signing_command',
2739
Program to use use for creating signatures.
2741
This should support at least the -u and --clearsign options.
2743
option_registry.register(
2744
Option('gpg_signing_key',
2747
GPG key to use for signing.
2749
This defaults to the first key associated with the users email.
2751
option_registry.register(
2752
Option('ignore_missing_extensions', default=False,
2753
from_unicode=bool_from_store,
2755
Control the missing extensions warning display.
2757
The warning will not be emitted if set to True.
2759
option_registry.register(
2761
help='Language to translate messages into.'))
2762
option_registry.register(
2763
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2765
Steal locks that appears to be dead.
2767
If set to True, bzr will check if a lock is supposed to be held by an
2768
active process from the same user on the same machine. If the user and
2769
machine match, but no process with the given PID is active, then bzr
2770
will automatically break the stale lock, and create a new lock for
2772
Otherwise, bzr will prompt as normal to break the lock.
2774
option_registry.register(
2775
Option('log_format', default='long',
2777
Log format to use when displaying revisions.
2779
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2780
may be provided by plugins.
2782
option_registry.register_lazy('mail_client', 'bzrlib.mail_client',
2784
option_registry.register(
2785
Option('output_encoding',
2786
help= 'Unicode encoding for output'
2787
' (terminal encoding if not specified).'))
2788
option_registry.register(
2789
Option('parent_location',
2792
The location of the default branch for pull or merge.
2794
This option is normally set when creating a branch, the first ``pull`` or by
2795
``pull --remember``.
2797
option_registry.register(
2798
Option('post_commit', default=None,
2800
Post commit functions.
2802
An ordered list of python functions to call, separated by spaces.
2804
Each function takes branch, rev_id as parameters.
2806
option_registry.register_lazy('progress_bar', 'bzrlib.ui.text',
2808
option_registry.register(
2809
Option('public_branch',
2812
A publically-accessible version of this branch.
2814
This implies that the branch setting this option is not publically-accessible.
2815
Used and set by ``bzr send``.
2817
option_registry.register(
2818
Option('push_location',
2821
The location of the default branch for push.
2823
This option is normally set by the first ``push`` or ``push --remember``.
2825
option_registry.register(
2826
Option('push_strict', default=None,
2827
from_unicode=bool_from_store,
2829
The default value for ``push --strict``.
2831
If present, defines the ``--strict`` option default value for checking
2832
uncommitted changes before sending a merge directive.
2834
option_registry.register(
2835
Option('repository.fdatasync', default=True,
2836
from_unicode=bool_from_store,
2838
Flush repository changes onto physical disk?
2840
If true (default), repository changes are flushed through the OS buffers
2841
to physical disk. This is somewhat slower, but means data should not be
2842
lost if the machine crashes. See also dirstate.fdatasync.
2844
option_registry.register_lazy('smtp_server',
2845
'bzrlib.smtp_connection', 'smtp_server')
2846
option_registry.register_lazy('smtp_password',
2847
'bzrlib.smtp_connection', 'smtp_password')
2848
option_registry.register_lazy('smtp_username',
2849
'bzrlib.smtp_connection', 'smtp_username')
2850
option_registry.register(
2851
Option('selftest.timeout',
2853
from_unicode=int_from_store,
2854
help='Abort selftest if one test takes longer than this many seconds',
2857
option_registry.register(
2858
Option('send_strict', default=None,
2859
from_unicode=bool_from_store,
2861
The default value for ``send --strict``.
2863
If present, defines the ``--strict`` option default value for checking
2864
uncommitted changes before sending a bundle.
2867
option_registry.register(
2868
Option('serve.client_timeout',
2869
default=300.0, from_unicode=float_from_store,
2870
help="If we wait for a new request from a client for more than"
2871
" X seconds, consider the client idle, and hangup."))
2872
option_registry.register(
2873
Option('stacked_on_location',
2875
help="""The location where this branch is stacked on."""))
2876
option_registry.register(
2877
Option('submit_branch',
2880
The branch you intend to submit your current work to.
2882
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2883
by the ``submit:`` revision spec.
2885
option_registry.register(
2887
help='''Where submissions from this branch are mailed to.'''))
2888
option_registry.register(
2889
ListOption('suppress_warnings',
2891
help="List of warning classes to suppress."))
2892
option_registry.register(
2893
Option('validate_signatures_in_log', default=False,
2894
from_unicode=bool_from_store, invalid='warning',
2895
help='''Whether to validate signatures in bzr log.'''))
2896
option_registry.register_lazy('ssl.ca_certs',
2897
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2899
option_registry.register_lazy('ssl.cert_reqs',
2900
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2903
class Section(object):
2904
"""A section defines a dict of option name => value.
2906
This is merely a read-only dict which can add some knowledge about the
2907
options. It is *not* a python dict object though and doesn't try to mimic
2911
def __init__(self, section_id, options):
2912
self.id = section_id
2913
# We re-use the dict-like object received
2914
self.options = options
2916
def get(self, name, default=None, expand=True):
2917
return self.options.get(name, default)
2919
def iter_option_names(self):
2920
for k in self.options.iterkeys():
2924
# Mostly for debugging use
2925
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2928
_NewlyCreatedOption = object()
2929
"""Was the option created during the MutableSection lifetime"""
2930
_DeletedOption = object()
2931
"""Was the option deleted during the MutableSection lifetime"""
2934
class MutableSection(Section):
2935
"""A section allowing changes and keeping track of the original values."""
2937
def __init__(self, section_id, options):
2938
super(MutableSection, self).__init__(section_id, options)
2939
self.reset_changes()
2941
def set(self, name, value):
2942
if name not in self.options:
2943
# This is a new option
2944
self.orig[name] = _NewlyCreatedOption
2945
elif name not in self.orig:
2946
self.orig[name] = self.get(name, None)
2947
self.options[name] = value
2949
def remove(self, name):
2950
if name not in self.orig and name in self.options:
2951
self.orig[name] = self.get(name, None)
2952
del self.options[name]
2954
def reset_changes(self):
2957
def apply_changes(self, dirty, store):
2958
"""Apply option value changes.
2960
``self`` has been reloaded from the persistent storage. ``dirty``
2961
contains the changes made since the previous loading.
2963
:param dirty: the mutable section containing the changes.
2965
:param store: the store containing the section
2967
for k, expected in dirty.orig.iteritems():
2968
actual = dirty.get(k, _DeletedOption)
2969
reloaded = self.get(k, _NewlyCreatedOption)
2970
if actual is _DeletedOption:
2971
if k in self.options:
2975
# Report concurrent updates in an ad-hoc way. This should only
2976
# occurs when different processes try to update the same option
2977
# which is not supported (as in: the config framework is not meant
2978
# to be used as a sharing mechanism).
2979
if expected != reloaded:
2980
if actual is _DeletedOption:
2981
actual = '<DELETED>'
2982
if reloaded is _NewlyCreatedOption:
2983
reloaded = '<CREATED>'
2984
if expected is _NewlyCreatedOption:
2985
expected = '<CREATED>'
2986
# Someone changed the value since we get it from the persistent
2988
trace.warning(gettext(
2989
"Option {0} in section {1} of {2} was changed"
2990
" from {3} to {4}. The {5} value will be saved.".format(
2991
k, self.id, store.external_url(), expected,
2993
# No need to keep track of these changes
2994
self.reset_changes()
2997
class Store(object):
2998
"""Abstract interface to persistent storage for configuration options."""
3000
readonly_section_class = Section
3001
mutable_section_class = MutableSection
3004
# Which sections need to be saved (by section id). We use a dict here
3005
# so the dirty sections can be shared by multiple callers.
3006
self.dirty_sections = {}
3008
def is_loaded(self):
3009
"""Returns True if the Store has been loaded.
3011
This is used to implement lazy loading and ensure the persistent
3012
storage is queried only when needed.
3014
raise NotImplementedError(self.is_loaded)
3017
"""Loads the Store from persistent storage."""
3018
raise NotImplementedError(self.load)
3020
def _load_from_string(self, bytes):
3021
"""Create a store from a string in configobj syntax.
3023
:param bytes: A string representing the file content.
3025
raise NotImplementedError(self._load_from_string)
3028
"""Unloads the Store.
3030
This should make is_loaded() return False. This is used when the caller
3031
knows that the persistent storage has changed or may have change since
3034
raise NotImplementedError(self.unload)
3036
def quote(self, value):
3037
"""Quote a configuration option value for storing purposes.
3039
This allows Stacks to present values as they will be stored.
3043
def unquote(self, value):
3044
"""Unquote a configuration option value into unicode.
3046
The received value is quoted as stored.
3051
"""Saves the Store to persistent storage."""
3052
raise NotImplementedError(self.save)
3054
def _need_saving(self):
3055
for s in self.dirty_sections.values():
3057
# At least one dirty section contains a modification
3061
def apply_changes(self, dirty_sections):
3062
"""Apply changes from dirty sections while checking for coherency.
3064
The Store content is discarded and reloaded from persistent storage to
3065
acquire up-to-date values.
3067
Dirty sections are MutableSection which kept track of the value they
3068
are expected to update.
3070
# We need an up-to-date version from the persistent storage, unload the
3071
# store. The reload will occur when needed (triggered by the first
3072
# get_mutable_section() call below.
3074
# Apply the changes from the preserved dirty sections
3075
for section_id, dirty in dirty_sections.iteritems():
3076
clean = self.get_mutable_section(section_id)
3077
clean.apply_changes(dirty, self)
3078
# Everything is clean now
3079
self.dirty_sections = {}
3081
def save_changes(self):
3082
"""Saves the Store to persistent storage if changes occurred.
3084
Apply the changes recorded in the mutable sections to a store content
3085
refreshed from persistent storage.
3087
raise NotImplementedError(self.save_changes)
3089
def external_url(self):
3090
raise NotImplementedError(self.external_url)
3092
def get_sections(self):
3093
"""Returns an ordered iterable of existing sections.
3095
:returns: An iterable of (store, section).
3097
raise NotImplementedError(self.get_sections)
3099
def get_mutable_section(self, section_id=None):
3100
"""Returns the specified mutable section.
3102
:param section_id: The section identifier
3104
raise NotImplementedError(self.get_mutable_section)
3107
# Mostly for debugging use
3108
return "<config.%s(%s)>" % (self.__class__.__name__,
3109
self.external_url())
3112
class CommandLineStore(Store):
3113
"A store to carry command line overrides for the config options."""
3115
def __init__(self, opts=None):
3116
super(CommandLineStore, self).__init__()
3123
# The dict should be cleared but not replaced so it can be shared.
3124
self.options.clear()
3126
def _from_cmdline(self, overrides):
3127
# Reset before accepting new definitions
3129
for over in overrides:
3131
name, value = over.split('=', 1)
3133
raise errors.BzrCommandError(
3134
gettext("Invalid '%s', should be of the form 'name=value'")
3136
self.options[name] = value
3138
def external_url(self):
3139
# Not an url but it makes debugging easier and is never needed
3143
def get_sections(self):
3144
yield self, self.readonly_section_class(None, self.options)
3147
class IniFileStore(Store):
3148
"""A config Store using ConfigObj for storage.
3150
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3151
serialize/deserialize the config file.
3155
"""A config Store using ConfigObj for storage.
3157
super(IniFileStore, self).__init__()
3158
self._config_obj = None
3160
def is_loaded(self):
3161
return self._config_obj != None
3164
self._config_obj = None
3165
self.dirty_sections = {}
3167
def _load_content(self):
3168
"""Load the config file bytes.
3170
This should be provided by subclasses
3172
:return: Byte string
3174
raise NotImplementedError(self._load_content)
3176
def _save_content(self, content):
3177
"""Save the config file bytes.
3179
This should be provided by subclasses
3181
:param content: Config file bytes to write
3183
raise NotImplementedError(self._save_content)
3186
"""Load the store from the associated file."""
3187
if self.is_loaded():
3189
content = self._load_content()
3190
self._load_from_string(content)
3191
for hook in ConfigHooks['load']:
3194
def _load_from_string(self, bytes):
3195
"""Create a config store from a string.
3197
:param bytes: A string representing the file content.
3199
if self.is_loaded():
3200
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3201
co_input = StringIO(bytes)
3203
# The config files are always stored utf8-encoded
3204
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3206
except configobj.ConfigObjError, e:
3207
self._config_obj = None
3208
raise errors.ParseConfigError(e.errors, self.external_url())
3209
except UnicodeDecodeError:
3210
raise errors.ConfigContentError(self.external_url())
3212
def save_changes(self):
3213
if not self.is_loaded():
3216
if not self._need_saving():
3218
# Preserve the current version
3219
dirty_sections = dict(self.dirty_sections.items())
3220
self.apply_changes(dirty_sections)
3221
# Save to the persistent storage
3225
if not self.is_loaded():
3229
self._config_obj.write(out)
3230
self._save_content(out.getvalue())
3231
for hook in ConfigHooks['save']:
3234
def get_sections(self):
3235
"""Get the configobj section in the file order.
3237
:returns: An iterable of (store, section).
3239
# We need a loaded store
3242
except (errors.NoSuchFile, errors.PermissionDenied):
3243
# If the file can't be read, there is no sections
3245
cobj = self._config_obj
3247
yield self, self.readonly_section_class(None, cobj)
3248
for section_name in cobj.sections:
3250
self.readonly_section_class(section_name,
3251
cobj[section_name]))
3253
def get_mutable_section(self, section_id=None):
3254
# We need a loaded store
3257
except errors.NoSuchFile:
3258
# The file doesn't exist, let's pretend it was empty
3259
self._load_from_string('')
3260
if section_id in self.dirty_sections:
3261
# We already created a mutable section for this id
3262
return self.dirty_sections[section_id]
3263
if section_id is None:
3264
section = self._config_obj
3266
section = self._config_obj.setdefault(section_id, {})
3267
mutable_section = self.mutable_section_class(section_id, section)
3268
# All mutable sections can become dirty
3269
self.dirty_sections[section_id] = mutable_section
3270
return mutable_section
3272
def quote(self, value):
3274
# configobj conflates automagical list values and quoting
3275
self._config_obj.list_values = True
3276
return self._config_obj._quote(value)
3278
self._config_obj.list_values = False
3280
def unquote(self, value):
3281
if value and isinstance(value, basestring):
3282
# _unquote doesn't handle None nor empty strings nor anything that
3283
# is not a string, really.
3284
value = self._config_obj._unquote(value)
3287
def external_url(self):
3288
# Since an IniFileStore can be used without a file (at least in tests),
3289
# it's better to provide something than raising a NotImplementedError.
3290
# All daughter classes are supposed to provide an implementation
3292
return 'In-Process Store, no URL'
3295
class TransportIniFileStore(IniFileStore):
3296
"""IniFileStore that loads files from a transport.
3298
:ivar transport: The transport object where the config file is located.
3300
:ivar file_name: The config file basename in the transport directory.
3303
def __init__(self, transport, file_name):
3304
"""A Store using a ini file on a Transport
3306
:param transport: The transport object where the config file is located.
3307
:param file_name: The config file basename in the transport directory.
3309
super(TransportIniFileStore, self).__init__()
3310
self.transport = transport
3311
self.file_name = file_name
3313
def _load_content(self):
3315
return self.transport.get_bytes(self.file_name)
3316
except errors.PermissionDenied:
3317
trace.warning("Permission denied while trying to load "
3318
"configuration store %s.", self.external_url())
3321
def _save_content(self, content):
3322
self.transport.put_bytes(self.file_name, content)
3324
def external_url(self):
3325
# FIXME: external_url should really accepts an optional relpath
3326
# parameter (bug #750169) :-/ -- vila 2011-04-04
3327
# The following will do in the interim but maybe we don't want to
3328
# expose a path here but rather a config ID and its associated
3329
# object </hand wawe>.
3330
return urlutils.join(self.transport.external_url(), self.file_name)
3333
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3334
# unlockable stores for use with objects that can already ensure the locking
3335
# (think branches). If different stores (not based on ConfigObj) are created,
3336
# they may face the same issue.
3339
class LockableIniFileStore(TransportIniFileStore):
3340
"""A ConfigObjStore using locks on save to ensure store integrity."""
3342
def __init__(self, transport, file_name, lock_dir_name=None):
3343
"""A config Store using ConfigObj for storage.
3345
:param transport: The transport object where the config file is located.
3347
:param file_name: The config file basename in the transport directory.
3349
if lock_dir_name is None:
3350
lock_dir_name = 'lock'
3351
self.lock_dir_name = lock_dir_name
3352
super(LockableIniFileStore, self).__init__(transport, file_name)
3353
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3355
def lock_write(self, token=None):
3356
"""Takes a write lock in the directory containing the config file.
3358
If the directory doesn't exist it is created.
3360
# FIXME: This doesn't check the ownership of the created directories as
3361
# ensure_config_dir_exists does. It should if the transport is local
3362
# -- vila 2011-04-06
3363
self.transport.create_prefix()
3364
return self._lock.lock_write(token)
3369
def break_lock(self):
3370
self._lock.break_lock()
3374
# We need to be able to override the undecorated implementation
3375
self.save_without_locking()
3377
def save_without_locking(self):
3378
super(LockableIniFileStore, self).save()
3381
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3382
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3383
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3385
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3386
# functions or a registry will make it easier and clearer for tests, focusing
3387
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3388
# on a poolie's remark)
3389
class GlobalStore(LockableIniFileStore):
3390
"""A config store for global options.
3392
There is a single GlobalStore for a given process.
3395
def __init__(self, possible_transports=None):
3396
t = transport.get_transport_from_path(
3397
config_dir(), possible_transports=possible_transports)
3398
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3402
class LocationStore(LockableIniFileStore):
3403
"""A config store for global options.
3405
There is a single GlobalStore for a given process.
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):
3416
"""A config store for branch options.
3418
There is a single BranchStore for a given branch.
3421
def __init__(self, branch):
3422
super(BranchStore, self).__init__(branch.control_transport,
3424
self.branch = branch
3428
class ControlStore(LockableIniFileStore):
3430
def __init__(self, bzrdir):
3431
super(ControlStore, self).__init__(bzrdir.transport,
3433
lock_dir_name='branch_lock')
3437
class SectionMatcher(object):
3438
"""Select sections into a given Store.
3440
This is intended to be used to postpone getting an iterable of sections
3444
def __init__(self, store):
3447
def get_sections(self):
3448
# This is where we require loading the store so we can see all defined
3450
sections = self.store.get_sections()
3451
# Walk the revisions in the order provided
3452
for store, s in sections:
3456
def match(self, section):
3457
"""Does the proposed section match.
3459
:param section: A Section object.
3461
:returns: True if the section matches, False otherwise.
3463
raise NotImplementedError(self.match)
3466
class NameMatcher(SectionMatcher):
3468
def __init__(self, store, section_id):
3469
super(NameMatcher, self).__init__(store)
3470
self.section_id = section_id
3472
def match(self, section):
3473
return section.id == self.section_id
3476
class LocationSection(Section):
3478
def __init__(self, section, extra_path, branch_name=None):
3479
super(LocationSection, self).__init__(section.id, section.options)
3480
self.extra_path = extra_path
3481
if branch_name is None:
3483
self.locals = {'relpath': extra_path,
3484
'basename': urlutils.basename(extra_path),
3485
'branchname': branch_name}
3487
def get(self, name, default=None, expand=True):
3488
value = super(LocationSection, self).get(name, default)
3489
if value is not None and expand:
3490
policy_name = self.get(name + ':policy', None)
3491
policy = _policy_value.get(policy_name, POLICY_NONE)
3492
if policy == POLICY_APPENDPATH:
3493
value = urlutils.join(value, self.extra_path)
3494
# expand section local options right now (since POLICY_APPENDPATH
3495
# will never add options references, it's ok to expand after it).
3497
for is_ref, chunk in iter_option_refs(value):
3499
chunks.append(chunk)
3502
if ref in self.locals:
3503
chunks.append(self.locals[ref])
3505
chunks.append(chunk)
3506
value = ''.join(chunks)
3510
class StartingPathMatcher(SectionMatcher):
3511
"""Select sections for a given location respecting the Store order."""
3513
# FIXME: Both local paths and urls can be used for section names as well as
3514
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3515
# inherited the fuzziness from the previous ``LocationConfig``
3516
# implementation. We probably need to revisit which encoding is allowed for
3517
# both ``location`` and section names and how we normalize
3518
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3519
# related too. -- vila 2012-01-04
3521
def __init__(self, store, location):
3522
super(StartingPathMatcher, self).__init__(store)
3523
if location.startswith('file://'):
3524
location = urlutils.local_path_from_url(location)
3525
self.location = location
3527
def get_sections(self):
3528
"""Get all sections matching ``location`` in the store.
3530
The most generic sections are described first in the store, then more
3531
specific ones can be provided for reduced scopes.
3533
The returned section are therefore returned in the reversed order so
3534
the most specific ones can be found first.
3536
location_parts = self.location.rstrip('/').split('/')
3539
# Later sections are more specific, they should be returned first
3540
for _, section in reversed(list(store.get_sections())):
3541
if section.id is None:
3542
# The no-name section is always included if present
3543
yield store, LocationSection(section, self.location)
3545
section_path = section.id
3546
if section_path.startswith('file://'):
3547
# the location is already a local path or URL, convert the
3548
# section id to the same format
3549
section_path = urlutils.local_path_from_url(section_path)
3550
if (self.location.startswith(section_path)
3551
or fnmatch.fnmatch(self.location, section_path)):
3552
section_parts = section_path.rstrip('/').split('/')
3553
extra_path = '/'.join(location_parts[len(section_parts):])
3554
yield store, LocationSection(section, extra_path)
3557
class LocationMatcher(SectionMatcher):
3559
def __init__(self, store, location):
3560
super(LocationMatcher, self).__init__(store)
3561
url, params = urlutils.split_segment_parameters(location)
3562
if location.startswith('file://'):
3563
location = urlutils.local_path_from_url(location)
3564
self.location = location
3565
branch_name = params.get('branch')
3566
if branch_name is None:
3567
self.branch_name = urlutils.basename(self.location)
3569
self.branch_name = urlutils.unescape(branch_name)
3571
def _get_matching_sections(self):
3572
"""Get all sections matching ``location``."""
3573
# We slightly diverge from LocalConfig here by allowing the no-name
3574
# section as the most generic one and the lower priority.
3575
no_name_section = None
3577
# Filter out the no_name_section so _iter_for_location_by_parts can be
3578
# used (it assumes all sections have a name).
3579
for _, section in self.store.get_sections():
3580
if section.id is None:
3581
no_name_section = section
3583
all_sections.append(section)
3584
# Unfortunately _iter_for_location_by_parts deals with section names so
3585
# we have to resync.
3586
filtered_sections = _iter_for_location_by_parts(
3587
[s.id for s in all_sections], self.location)
3588
iter_all_sections = iter(all_sections)
3589
matching_sections = []
3590
if no_name_section is not None:
3591
matching_sections.append(
3592
(0, LocationSection(no_name_section, self.location)))
3593
for section_id, extra_path, length in filtered_sections:
3594
# a section id is unique for a given store so it's safe to take the
3595
# first matching section while iterating. Also, all filtered
3596
# sections are part of 'all_sections' and will always be found
3599
section = iter_all_sections.next()
3600
if section_id == section.id:
3601
section = LocationSection(section, extra_path,
3603
matching_sections.append((length, section))
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):
3642
# FIXME: _shared_stores should be an attribute of a library state once a
3643
# library_state object is always available.
3645
_shared_stores_at_exit_installed = False
3647
class Stack(object):
3648
"""A stack of configurations where an option can be defined"""
3650
def __init__(self, sections_def, store=None, mutable_section_id=None):
3651
"""Creates a stack of sections with an optional store for changes.
3653
:param sections_def: A list of Section or callables that returns an
3654
iterable of Section. This defines the Sections for the Stack and
3655
can be called repeatedly if needed.
3657
:param store: The optional Store where modifications will be
3658
recorded. If none is specified, no modifications can be done.
3660
:param mutable_section_id: The id of the MutableSection where changes
3661
are recorded. This requires the ``store`` parameter to be
3664
self.sections_def = sections_def
3666
self.mutable_section_id = mutable_section_id
3668
def iter_sections(self):
3669
"""Iterate all the defined sections."""
3670
# Ensuring lazy loading is achieved by delaying section matching (which
3671
# implies querying the persistent storage) until it can't be avoided
3672
# anymore by using callables to describe (possibly empty) section
3674
for sections in self.sections_def:
3675
for store, section in sections():
3676
yield store, section
3678
def get(self, name, expand=True, convert=True):
3679
"""Return the *first* option value found in the sections.
3681
This is where we guarantee that sections coming from Store are loaded
3682
lazily: the loading is delayed until we need to either check that an
3683
option exists or get its value, which in turn may require to discover
3684
in which sections it can be defined. Both of these (section and option
3685
existence) require loading the store (even partially).
3687
:param name: The queried option.
3689
:param expand: Whether options references should be expanded.
3691
:param convert: Whether the option value should be converted from
3692
unicode (do nothing for non-registered options).
3694
:returns: The value of the option.
3696
# FIXME: No caching of options nor sections yet -- vila 20110503
3698
found_store = None # Where the option value has been found
3699
# If the option is registered, it may provide additional info about
3702
opt = option_registry.get(name)
3707
def expand_and_convert(val):
3708
# This may need to be called in different contexts if the value is
3709
# None or ends up being None during expansion or conversion.
3712
if isinstance(val, basestring):
3713
val = self._expand_options_in_string(val)
3715
trace.warning('Cannot expand "%s":'
3716
' %s does not support option expansion'
3717
% (name, type(val)))
3719
val = found_store.unquote(val)
3721
val = opt.convert_from_unicode(found_store, val)
3724
# First of all, check if the environment can override the configuration
3726
if opt is not None and opt.override_from_env:
3727
value = opt.get_override()
3728
value = expand_and_convert(value)
3730
for store, section in self.iter_sections():
3731
value = section.get(name)
3732
if value is not None:
3735
value = expand_and_convert(value)
3736
if opt is not None and value is None:
3737
# If the option is registered, it may provide a default value
3738
value = opt.get_default()
3739
value = expand_and_convert(value)
3740
for hook in ConfigHooks['get']:
3741
hook(self, name, value)
3744
def expand_options(self, string, env=None):
3745
"""Expand option references in the string in the configuration context.
3747
:param string: The string containing option(s) to expand.
3749
:param env: An option dict defining additional configuration options or
3750
overriding existing ones.
3752
:returns: The expanded string.
3754
return self._expand_options_in_string(string, env)
3756
def _expand_options_in_string(self, string, env=None, _refs=None):
3757
"""Expand options in the string in the configuration context.
3759
:param string: The string to be expanded.
3761
:param env: An option dict defining additional configuration options or
3762
overriding existing ones.
3764
:param _refs: Private list (FIFO) containing the options being expanded
3767
:returns: The expanded string.
3770
# Not much to expand there
3773
# What references are currently resolved (to detect loops)
3776
# We need to iterate until no more refs appear ({{foo}} will need two
3777
# iterations for example).
3782
for is_ref, chunk in iter_option_refs(result):
3784
chunks.append(chunk)
3789
raise errors.OptionExpansionLoop(string, _refs)
3791
value = self._expand_option(name, env, _refs)
3793
raise errors.ExpandingUnknownOption(name, string)
3794
chunks.append(value)
3796
result = ''.join(chunks)
3799
def _expand_option(self, name, env, _refs):
3800
if env is not None and name in env:
3801
# Special case, values provided in env takes precedence over
3805
value = self.get(name, expand=False, convert=False)
3806
value = self._expand_options_in_string(value, env, _refs)
3809
def _get_mutable_section(self):
3810
"""Get the MutableSection for the Stack.
3812
This is where we guarantee that the mutable section is lazily loaded:
3813
this means we won't load the corresponding store before setting a value
3814
or deleting an option. In practice the store will often be loaded but
3815
this helps catching some programming errors.
3818
section = store.get_mutable_section(self.mutable_section_id)
3819
return store, section
3821
def set(self, name, value):
3822
"""Set a new value for the option."""
3823
store, section = self._get_mutable_section()
3824
section.set(name, store.quote(value))
3825
for hook in ConfigHooks['set']:
3826
hook(self, name, value)
3828
def remove(self, name):
3829
"""Remove an existing option."""
3830
_, section = self._get_mutable_section()
3831
section.remove(name)
3832
for hook in ConfigHooks['remove']:
3836
# Mostly for debugging use
3837
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3839
def _get_overrides(self):
3840
# FIXME: Hack around library_state.initialize never called
3841
if bzrlib.global_state is not None:
3842
return bzrlib.global_state.cmdline_overrides.get_sections()
3845
def get_shared_store(self, store, state=None):
3846
"""Get a known shared store.
3848
Store urls uniquely identify them and are used to ensure a single copy
3849
is shared across all users.
3851
:param store: The store known to the caller.
3853
:param state: The library state where the known stores are kept.
3855
:returns: The store received if it's not a known one, an already known
3859
state = bzrlib.global_state
3861
global _shared_stores_at_exit_installed
3862
stores = _shared_stores
3863
def save_config_changes():
3864
for k, store in stores.iteritems():
3865
store.save_changes()
3866
if not _shared_stores_at_exit_installed:
3867
# FIXME: Ugly hack waiting for library_state to always be
3868
# available. -- vila 20120731
3870
atexit.register(save_config_changes)
3871
_shared_stores_at_exit_installed = True
3873
stores = state.config_stores
3874
url = store.external_url()
3882
class MemoryStack(Stack):
3883
"""A configuration stack defined from a string.
3885
This is mainly intended for tests and requires no disk resources.
3888
def __init__(self, content=None):
3889
"""Create an in-memory stack from a given content.
3891
It uses a single store based on configobj and support reading and
3894
:param content: The initial content of the store. If None, the store is
3895
not loaded and ``_load_from_string`` can and should be used if
3898
store = IniFileStore()
3899
if content is not None:
3900
store._load_from_string(content)
3901
super(MemoryStack, self).__init__(
3902
[store.get_sections], store)
3905
class _CompatibleStack(Stack):
3906
"""Place holder for compatibility with previous design.
3908
This is intended to ease the transition from the Config-based design to the
3909
Stack-based design and should not be used nor relied upon by plugins.
3911
One assumption made here is that the daughter classes will all use Stores
3912
derived from LockableIniFileStore).
3914
It implements set() and remove () by re-loading the store before applying
3915
the modification and saving it.
3917
The long term plan being to implement a single write by store to save
3918
all modifications, this class should not be used in the interim.
3921
def set(self, name, value):
3924
super(_CompatibleStack, self).set(name, value)
3925
# Force a write to persistent storage
3928
def remove(self, name):
3931
super(_CompatibleStack, self).remove(name)
3932
# Force a write to persistent storage
3936
class GlobalStack(Stack):
3937
"""Global options only stack.
3939
The following sections are queried:
3941
* command-line overrides,
3943
* the 'DEFAULT' section in bazaar.conf
3945
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3950
gstore = self.get_shared_store(GlobalStore())
3951
super(GlobalStack, self).__init__(
3952
[self._get_overrides,
3953
NameMatcher(gstore, 'DEFAULT').get_sections],
3954
gstore, mutable_section_id='DEFAULT')
3957
class LocationStack(Stack):
3958
"""Per-location options falling back to global options stack.
3961
The following sections are queried:
3963
* command-line overrides,
3965
* the sections matching ``location`` in ``locations.conf``, the order being
3966
defined by the number of path components in the section glob, higher
3967
numbers first (from most specific section to most generic).
3969
* the 'DEFAULT' section in bazaar.conf
3971
This stack will use the ``location`` section in locations.conf as its
3975
def __init__(self, location):
3976
"""Make a new stack for a location and global configuration.
3978
:param location: A URL prefix to """
3979
lstore = self.get_shared_store(LocationStore())
3980
if location.startswith('file://'):
3981
location = urlutils.local_path_from_url(location)
3982
gstore = self.get_shared_store(GlobalStore())
3983
super(LocationStack, self).__init__(
3984
[self._get_overrides,
3985
LocationMatcher(lstore, location).get_sections,
3986
NameMatcher(gstore, 'DEFAULT').get_sections],
3987
lstore, mutable_section_id=location)
3990
class BranchStack(Stack):
3991
"""Per-location options falling back to branch then global options stack.
3993
The following sections are queried:
3995
* command-line overrides,
3997
* the sections matching ``location`` in ``locations.conf``, the order being
3998
defined by the number of path components in the section glob, higher
3999
numbers first (from most specific section to most generic),
4001
* the no-name section in branch.conf,
4003
* the ``DEFAULT`` section in ``bazaar.conf``.
4005
This stack will use the no-name section in ``branch.conf`` as its
4009
def __init__(self, branch):
4010
lstore = self.get_shared_store(LocationStore())
4011
bstore = branch._get_config_store()
4012
gstore = self.get_shared_store(GlobalStore())
4013
super(BranchStack, self).__init__(
4014
[self._get_overrides,
4015
LocationMatcher(lstore, branch.base).get_sections,
4016
NameMatcher(bstore, None).get_sections,
4017
NameMatcher(gstore, 'DEFAULT').get_sections],
4019
self.branch = branch
4021
def lock_write(self, token=None):
4022
return self.branch.lock_write(token)
4025
return self.branch.unlock()
4028
def set(self, name, value):
4029
super(BranchStack, self).set(name, value)
4030
# Unlocking the branch will trigger a store.save_changes() so the last
4031
# unlock saves all the changes.
4034
def remove(self, name):
4035
super(BranchStack, self).remove(name)
4036
# Unlocking the branch will trigger a store.save_changes() so the last
4037
# unlock saves all the changes.
4040
class RemoteControlStack(Stack):
4041
"""Remote control-only options stack."""
4043
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
4044
# with the stack used for remote bzr dirs. RemoteControlStack only uses
4045
# control.conf and is used only for stack options.
4047
def __init__(self, bzrdir):
4048
cstore = bzrdir._get_config_store()
4049
super(RemoteControlStack, self).__init__(
4050
[NameMatcher(cstore, None).get_sections],
4052
self.bzrdir = bzrdir
4055
class BranchOnlyStack(Stack):
4056
"""Branch-only options stack."""
4058
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4059
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4060
# -- vila 2011-12-16
4062
def __init__(self, branch):
4063
bstore = branch._get_config_store()
4064
super(BranchOnlyStack, self).__init__(
4065
[NameMatcher(bstore, None).get_sections],
4067
self.branch = branch
4069
def lock_write(self, token=None):
4070
return self.branch.lock_write(token)
4073
return self.branch.unlock()
4076
def set(self, name, value):
4077
super(BranchOnlyStack, self).set(name, value)
4078
# Force a write to persistent storage
4079
self.store.save_changes()
4082
def remove(self, name):
4083
super(BranchOnlyStack, self).remove(name)
4084
# Force a write to persistent storage
4085
self.store.save_changes()
4088
class cmd_config(commands.Command):
4089
__doc__ = """Display, set or remove a configuration option.
4091
Display the active value for option NAME.
4093
If --all is specified, NAME is interpreted as a regular expression and all
4094
matching options are displayed mentioning their scope and without resolving
4095
option references in the value). The active value that bzr will take into
4096
account is the first one displayed for each option.
4098
If NAME is not given, --all .* is implied (all options are displayed for the
4101
Setting a value is achieved by using NAME=value without spaces. The value
4102
is set in the most relevant scope and can be checked by displaying the
4105
Removing a value is achieved by using --remove NAME.
4108
takes_args = ['name?']
4112
# FIXME: This should be a registry option so that plugins can register
4113
# their own config files (or not) and will also address
4114
# http://pad.lv/788991 -- vila 20101115
4115
commands.Option('scope', help='Reduce the scope to the specified'
4116
' configuration file.',
4118
commands.Option('all',
4119
help='Display all the defined values for the matching options.',
4121
commands.Option('remove', help='Remove the option from'
4122
' the configuration file.'),
4125
_see_also = ['configuration']
4127
@commands.display_command
4128
def run(self, name=None, all=False, directory=None, scope=None,
4130
if directory is None:
4132
directory = directory_service.directories.dereference(directory)
4133
directory = urlutils.normalize_url(directory)
4135
raise errors.BzrError(
4136
'--all and --remove are mutually exclusive.')
4138
# Delete the option in the given scope
4139
self._remove_config_option(name, directory, scope)
4141
# Defaults to all options
4142
self._show_matching_options('.*', directory, scope)
4145
name, value = name.split('=', 1)
4147
# Display the option(s) value(s)
4149
self._show_matching_options(name, directory, scope)
4151
self._show_value(name, directory, scope)
4154
raise errors.BzrError(
4155
'Only one option can be set.')
4156
# Set the option value
4157
self._set_config_option(name, value, directory, scope)
4159
def _get_stack(self, directory, scope=None, write_access=False):
4160
"""Get the configuration stack specified by ``directory`` and ``scope``.
4162
:param directory: Where the configurations are derived from.
4164
:param scope: A specific config to start from.
4166
:param write_access: Whether a write access to the stack will be
4169
# FIXME: scope should allow access to plugin-specific stacks (even
4170
# reduced to the plugin-specific store), related to
4171
# http://pad.lv/788991 -- vila 2011-11-15
4172
if scope is not None:
4173
if scope == 'bazaar':
4174
return GlobalStack()
4175
elif scope == 'locations':
4176
return LocationStack(directory)
4177
elif scope == 'branch':
4179
controldir.ControlDir.open_containing_tree_or_branch(
4182
self.add_cleanup(br.lock_write().unlock)
4183
return br.get_config_stack()
4184
raise errors.NoSuchConfig(scope)
4188
controldir.ControlDir.open_containing_tree_or_branch(
4191
self.add_cleanup(br.lock_write().unlock)
4192
return br.get_config_stack()
4193
except errors.NotBranchError:
4194
return LocationStack(directory)
4196
def _quote_multiline(self, value):
4198
value = '"""' + value + '"""'
4201
def _show_value(self, name, directory, scope):
4202
conf = self._get_stack(directory, scope)
4203
value = conf.get(name, expand=True, convert=False)
4204
if value is not None:
4205
# Quote the value appropriately
4206
value = self._quote_multiline(value)
4207
self.outf.write('%s\n' % (value,))
4209
raise errors.NoSuchConfigOption(name)
4211
def _show_matching_options(self, name, directory, scope):
4212
name = lazy_regex.lazy_compile(name)
4213
# We want any error in the regexp to be raised *now* so we need to
4214
# avoid the delay introduced by the lazy regexp. But, we still do
4215
# want the nicer errors raised by lazy_regex.
4216
name._compile_and_collapse()
4219
conf = self._get_stack(directory, scope)
4220
for store, section in conf.iter_sections():
4221
for oname in section.iter_option_names():
4222
if name.search(oname):
4223
if cur_store_id != store.id:
4224
# Explain where the options are defined
4225
self.outf.write('%s:\n' % (store.id,))
4226
cur_store_id = store.id
4228
if (section.id is not None and cur_section != section.id):
4229
# Display the section id as it appears in the store
4230
# (None doesn't appear by definition)
4231
self.outf.write(' [%s]\n' % (section.id,))
4232
cur_section = section.id
4233
value = section.get(oname, expand=False)
4234
# Quote the value appropriately
4235
value = self._quote_multiline(value)
4236
self.outf.write(' %s = %s\n' % (oname, value))
4238
def _set_config_option(self, name, value, directory, scope):
4239
conf = self._get_stack(directory, scope, write_access=True)
4240
conf.set(name, value)
4242
def _remove_config_option(self, name, directory, scope):
4244
raise errors.BzrCommandError(
4245
'--remove expects an option to remove.')
4246
conf = self._get_stack(directory, scope, write_access=True)
4250
raise errors.NoSuchConfigOption(name)
4255
# We need adapters that can build a Store or a Stack in a test context. Test
4256
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4257
# themselves. The builder will receive a test instance and should return a
4258
# ready-to-use store or stack. Plugins that define new store/stacks can also
4259
# register themselves here to be tested against the tests defined in
4260
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4261
# for the same test.
4263
# The registered object should be a callable receiving a test instance
4264
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4266
test_store_builder_registry = registry.Registry()
4268
# The registered object should be a callable receiving a test instance
4269
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4271
test_stack_builder_registry = registry.Registry()