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 = BytesIO(self._transport.get_bytes(self._filename))
2277
for hook in OldConfigHooks['load']:
1516
2280
except errors.NoSuchFile:
2282
except errors.PermissionDenied as 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 as e:
2297
raise ParseConfigError(e.errors, self._external_url())
2298
except UnicodeDecodeError:
2299
raise ConfigContentError(self._external_url())
1522
2304
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2305
out_file = BytesIO()
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 or its default value.
2349
:param invalid: the action to be taken when an invalid value is
2350
encountered in a store. This is called only when from_unicode is
2351
invoked to convert a string and returns None or raise ValueError or
2352
TypeError. Accepted values are: None (ignore invalid values),
2353
'warning' (emit a warning), 'error' (emit an error message and
2356
:param unquote: should the unicode value be unquoted before conversion.
2357
This should be used only when the store providing the values cannot
2358
safely unquote them (see http://pad.lv/906897). It is provided so
2359
daughter classes can handle the quoting themselves.
2361
if override_from_env is None:
2362
override_from_env = []
2363
if default_from_env is None:
2364
default_from_env = []
2366
self.override_from_env = override_from_env
2367
# Convert the default value to a unicode string so all values are
2368
# strings internally before conversion (via from_unicode) is attempted.
2371
elif isinstance(default, list):
2372
# Only the empty list is supported
2374
raise AssertionError(
2375
'Only empty lists are supported as default values')
2377
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2378
# Rely on python to convert strings, booleans and integers
2379
self.default = u'%s' % (default,)
2380
elif callable(default):
2381
self.default = default
2383
# other python objects are not expected
2384
raise AssertionError('%r is not supported as a default value'
2386
self.default_from_env = default_from_env
2388
self.from_unicode = from_unicode
2389
self.unquote = unquote
2390
if invalid and invalid not in ('warning', 'error'):
2391
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2392
self.invalid = invalid
2398
def convert_from_unicode(self, store, unicode_value):
2399
if self.unquote and store is not None and unicode_value is not None:
2400
unicode_value = store.unquote(unicode_value)
2401
if self.from_unicode is None or unicode_value is None:
2402
# Don't convert or nothing to convert
2403
return unicode_value
2405
converted = self.from_unicode(unicode_value)
2406
except (ValueError, TypeError):
2407
# Invalid values are ignored
2409
if converted is None and self.invalid is not None:
2410
# The conversion failed
2411
if self.invalid == 'warning':
2412
trace.warning('Value "%s" is not valid for "%s"',
2413
unicode_value, self.name)
2414
elif self.invalid == 'error':
2415
raise ConfigOptionValueError(self.name, unicode_value)
2418
def get_override(self):
2420
for var in self.override_from_env:
2422
# If the env variable is defined, its value takes precedence
2423
value = os.environ[var]
2425
value = value.decode(osutils.get_user_encoding())
2431
def get_default(self):
2433
for var in self.default_from_env:
2435
# If the env variable is defined, its value is the default one
2436
value = os.environ[var]
2438
value = value.decode(osutils.get_user_encoding())
2443
# Otherwise, fallback to the value defined at registration
2444
if callable(self.default):
2445
value = self.default()
2446
if not isinstance(value, text_type):
2447
raise AssertionError(
2448
"Callable default value for '%s' should be unicode"
2451
value = self.default
2454
def get_help_topic(self):
2457
def get_help_text(self, additional_see_also=None, plain=True):
2459
from breezy import help_topics
2460
result += help_topics._format_see_also(additional_see_also)
2462
result = help_topics.help_as_plain_text(result)
2466
# Predefined converters to get proper values from store
2468
def bool_from_store(unicode_str):
2469
return ui.bool_from_string(unicode_str)
2472
def int_from_store(unicode_str):
2473
return int(unicode_str)
2476
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2478
def int_SI_from_store(unicode_str):
2479
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2481
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2482
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2485
:return Integer, expanded to its base-10 value if a proper SI unit is
2486
found, None otherwise.
2488
regexp = "^(\\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2489
p = re.compile(regexp, re.IGNORECASE)
2490
m = p.match(unicode_str)
2493
val, _, unit = m.groups()
2497
coeff = _unit_suffixes[unit.upper()]
2499
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2504
def float_from_store(unicode_str):
2505
return float(unicode_str)
2508
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2510
_list_converter_config = configobj.ConfigObj(
2511
{}, encoding='utf-8', list_values=True, interpolation=False)
2514
class ListOption(Option):
2516
def __init__(self, name, default=None, default_from_env=None,
2517
help=None, invalid=None):
2518
"""A list Option definition.
2520
This overrides the base class so the conversion from a unicode string
2521
can take quoting into account.
2523
super(ListOption, self).__init__(
2524
name, default=default, default_from_env=default_from_env,
2525
from_unicode=self.from_unicode, help=help,
2526
invalid=invalid, unquote=False)
2528
def from_unicode(self, unicode_str):
2529
if not isinstance(unicode_str, string_types):
2531
# Now inject our string directly as unicode. All callers got their
2532
# value from configobj, so values that need to be quoted are already
2534
_list_converter_config.reset()
2535
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2536
maybe_list = _list_converter_config['list']
2537
if isinstance(maybe_list, string_types):
2539
# A single value, most probably the user forgot (or didn't care
2540
# to add) the final ','
2543
# The empty string, convert to empty list
2546
# We rely on ConfigObj providing us with a list already
2551
class RegistryOption(Option):
2552
"""Option for a choice from a registry."""
2554
def __init__(self, name, registry, default_from_env=None,
2555
help=None, invalid=None):
2556
"""A registry based Option definition.
2558
This overrides the base class so the conversion from a unicode string
2559
can take quoting into account.
2561
super(RegistryOption, self).__init__(
2562
name, default=lambda: registry.default_key,
2563
default_from_env=default_from_env,
2564
from_unicode=self.from_unicode, help=help,
2565
invalid=invalid, unquote=False)
2566
self.registry = registry
2568
def from_unicode(self, unicode_str):
2569
if not isinstance(unicode_str, string_types):
2572
return self.registry.get(unicode_str)
2575
"Invalid value %s for %s."
2576
"See help for a list of possible values." % (unicode_str,
2581
ret = [self._help, "\n\nThe following values are supported:\n"]
2582
for key in self.registry.keys():
2583
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2587
_option_ref_re = lazy_regex.lazy_compile('({[^\\d\\W](?:\\.\\w|-\\w|\\w)*})')
2588
"""Describes an expandable option reference.
2590
We want to match the most embedded reference first.
2592
I.e. for '{{foo}}' we will get '{foo}',
2593
for '{bar{baz}}' we will get '{baz}'
2596
def iter_option_refs(string):
2597
# Split isolate refs so every other chunk is a ref
2599
for chunk in _option_ref_re.split(string):
2604
class OptionRegistry(registry.Registry):
2605
"""Register config options by their name.
2607
This overrides ``registry.Registry`` to simplify registration by acquiring
2608
some information from the option object itself.
2611
def _check_option_name(self, option_name):
2612
"""Ensures an option name is valid.
2614
:param option_name: The name to validate.
2616
if _option_ref_re.match('{%s}' % option_name) is None:
2617
raise IllegalOptionName(option_name)
2619
def register(self, option):
2620
"""Register a new option to its name.
2622
:param option: The option to register. Its name is used as the key.
2624
self._check_option_name(option.name)
2625
super(OptionRegistry, self).register(option.name, option,
2628
def register_lazy(self, key, module_name, member_name):
2629
"""Register a new option to be loaded on request.
2631
:param key: the key to request the option later. Since the registration
2632
is lazy, it should be provided and match the option name.
2634
:param module_name: the python path to the module. Such as 'os.path'.
2636
:param member_name: the member of the module to return. If empty or
2637
None, get() will return the module itself.
2639
self._check_option_name(key)
2640
super(OptionRegistry, self).register_lazy(key,
2641
module_name, member_name)
2643
def get_help(self, key=None):
2644
"""Get the help text associated with the given key"""
2645
option = self.get(key)
2646
the_help = option.help
2647
if callable(the_help):
2648
return the_help(self, key)
2652
option_registry = OptionRegistry()
2655
# Registered options in lexicographical order
2657
option_registry.register(
2658
Option('append_revisions_only',
2659
default=None, from_unicode=bool_from_store, invalid='warning',
2661
Whether to only append revisions to the mainline.
2663
If this is set to true, then it is not possible to change the
2664
existing mainline of the branch.
2666
option_registry.register(
2667
ListOption('acceptable_keys',
2670
List of GPG key patterns which are acceptable for verification.
2672
option_registry.register(
2673
Option('add.maximum_file_size',
2674
default=u'20MB', from_unicode=int_SI_from_store,
2676
Size above which files should be added manually.
2678
Files below this size are added automatically when using ``bzr add`` without
2681
A negative value means disable the size check.
2683
option_registry.register(
2685
default=None, from_unicode=bool_from_store,
2687
Is the branch bound to ``bound_location``.
2689
If set to "True", the branch should act as a checkout, and push each commit to
2690
the bound_location. This option is normally set by ``bind``/``unbind``.
2692
See also: bound_location.
2694
option_registry.register(
2695
Option('bound_location',
2698
The location that commits should go to when acting as a checkout.
2700
This option is normally set by ``bind``.
2704
option_registry.register(
2705
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2707
Whether revisions associated with tags should be fetched.
2709
option_registry.register_lazy(
2710
'transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2711
option_registry.register(
2712
Option('bzr.workingtree.worth_saving_limit', default=10,
2713
from_unicode=int_from_store, invalid='warning',
2715
How many changes before saving the dirstate.
2717
-1 means that we will never rewrite the dirstate file for only
2718
stat-cache changes. Regardless of this setting, we will always rewrite
2719
the dirstate file if a file is added/removed/renamed/etc. This flag only
2720
affects the behavior of updating the dirstate file after we notice that
2721
a file has been touched.
2723
option_registry.register(
2724
Option('bugtracker', default=None,
2726
Default bug tracker to use.
2728
This bug tracker will be used for example when marking bugs
2729
as fixed using ``bzr commit --fixes``, if no explicit
2730
bug tracker was specified.
2732
option_registry.register(
2733
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2734
from_unicode=signature_policy_from_unicode,
2736
GPG checking policy.
2738
Possible values: require, ignore, check-available (default)
2740
this option will control whether bzr will require good gpg
2741
signatures, ignore them, or check them if they are
2744
option_registry.register(
2745
Option('child_submit_format',
2746
help='''The preferred format of submissions to this branch.'''))
2747
option_registry.register(
2748
Option('child_submit_to',
2749
help='''Where submissions to this branch are mailed to.'''))
2750
option_registry.register(
2751
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2752
from_unicode=signing_policy_from_unicode,
2756
Possible values: always, never, when-required (default)
2758
This option controls whether bzr will always create
2759
gpg signatures or not on commits.
2761
option_registry.register(
2762
Option('dirstate.fdatasync', default=True,
2763
from_unicode=bool_from_store,
2765
Flush dirstate changes onto physical disk?
2767
If true (default), working tree metadata changes are flushed through the
2768
OS buffers to physical disk. This is somewhat slower, but means data
2769
should not be lost if the machine crashes. See also repository.fdatasync.
2771
option_registry.register(
2772
ListOption('debug_flags', default=[],
2773
help='Debug flags to activate.'))
2774
option_registry.register(
2775
Option('default_format', default='2a',
2776
help='Format used when creating branches.'))
2777
option_registry.register(
2779
help='The command called to launch an editor to enter a message.'))
2780
option_registry.register(
2781
Option('email', override_from_env=['BRZ_EMAIL'], default=default_email,
2782
help='The users identity'))
2783
option_registry.register(
2784
Option('gpg_signing_key',
2787
GPG key to use for signing.
2789
This defaults to the first key associated with the users email.
2791
option_registry.register(
2793
help='Language to translate messages into.'))
2794
option_registry.register(
2795
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2797
Steal locks that appears to be dead.
2799
If set to True, bzr will check if a lock is supposed to be held by an
2800
active process from the same user on the same machine. If the user and
2801
machine match, but no process with the given PID is active, then bzr
2802
will automatically break the stale lock, and create a new lock for
2804
Otherwise, bzr will prompt as normal to break the lock.
2806
option_registry.register(
2807
Option('log_format', default='long',
2809
Log format to use when displaying revisions.
2811
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2812
may be provided by plugins.
2814
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2816
option_registry.register(
2817
Option('output_encoding',
2818
help= 'Unicode encoding for output'
2819
' (terminal encoding if not specified).'))
2820
option_registry.register(
2821
Option('parent_location',
2824
The location of the default branch for pull or merge.
2826
This option is normally set when creating a branch, the first ``pull`` or by
2827
``pull --remember``.
2829
option_registry.register(
2830
Option('post_commit', default=None,
2832
Post commit functions.
2834
An ordered list of python functions to call, separated by spaces.
2836
Each function takes branch, rev_id as parameters.
2838
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2840
option_registry.register(
2841
Option('public_branch',
2844
A publically-accessible version of this branch.
2846
This implies that the branch setting this option is not publically-accessible.
2847
Used and set by ``bzr send``.
2849
option_registry.register(
2850
Option('push_location',
2853
The location of the default branch for push.
2855
This option is normally set by the first ``push`` or ``push --remember``.
2857
option_registry.register(
2858
Option('push_strict', default=None,
2859
from_unicode=bool_from_store,
2861
The default value for ``push --strict``.
2863
If present, defines the ``--strict`` option default value for checking
2864
uncommitted changes before sending a merge directive.
2866
option_registry.register(
2867
Option('repository.fdatasync', default=True,
2868
from_unicode=bool_from_store,
2870
Flush repository changes onto physical disk?
2872
If true (default), repository changes are flushed through the OS buffers
2873
to physical disk. This is somewhat slower, but means data should not be
2874
lost if the machine crashes. See also dirstate.fdatasync.
2876
option_registry.register_lazy('smtp_server',
2877
'breezy.smtp_connection', 'smtp_server')
2878
option_registry.register_lazy('smtp_password',
2879
'breezy.smtp_connection', 'smtp_password')
2880
option_registry.register_lazy('smtp_username',
2881
'breezy.smtp_connection', 'smtp_username')
2882
option_registry.register(
2883
Option('selftest.timeout',
2885
from_unicode=int_from_store,
2886
help='Abort selftest if one test takes longer than this many seconds',
2889
option_registry.register(
2890
Option('send_strict', default=None,
2891
from_unicode=bool_from_store,
2893
The default value for ``send --strict``.
2895
If present, defines the ``--strict`` option default value for checking
2896
uncommitted changes before sending a bundle.
2899
option_registry.register(
2900
Option('serve.client_timeout',
2901
default=300.0, from_unicode=float_from_store,
2902
help="If we wait for a new request from a client for more than"
2903
" X seconds, consider the client idle, and hangup."))
2904
option_registry.register(
2905
Option('stacked_on_location',
2907
help="""The location where this branch is stacked on."""))
2908
option_registry.register(
2909
Option('submit_branch',
2912
The branch you intend to submit your current work to.
2914
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2915
by the ``submit:`` revision spec.
2917
option_registry.register(
2919
help='''Where submissions from this branch are mailed to.'''))
2920
option_registry.register(
2921
ListOption('suppress_warnings',
2923
help="List of warning classes to suppress."))
2924
option_registry.register(
2925
Option('validate_signatures_in_log', default=False,
2926
from_unicode=bool_from_store, invalid='warning',
2927
help='''Whether to validate signatures in brz log.'''))
2928
option_registry.register_lazy('ssl.ca_certs',
2929
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2931
option_registry.register_lazy('ssl.cert_reqs',
2932
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2935
class Section(object):
2936
"""A section defines a dict of option name => value.
2938
This is merely a read-only dict which can add some knowledge about the
2939
options. It is *not* a python dict object though and doesn't try to mimic
2943
def __init__(self, section_id, options):
2944
self.id = section_id
2945
# We re-use the dict-like object received
2946
self.options = options
2948
def get(self, name, default=None, expand=True):
2949
return self.options.get(name, default)
2951
def iter_option_names(self):
2952
for k in self.options.keys():
2956
# Mostly for debugging use
2957
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2960
_NewlyCreatedOption = object()
2961
"""Was the option created during the MutableSection lifetime"""
2962
_DeletedOption = object()
2963
"""Was the option deleted during the MutableSection lifetime"""
2966
class MutableSection(Section):
2967
"""A section allowing changes and keeping track of the original values."""
2969
def __init__(self, section_id, options):
2970
super(MutableSection, self).__init__(section_id, options)
2971
self.reset_changes()
2973
def set(self, name, value):
2974
if name not in self.options:
2975
# This is a new option
2976
self.orig[name] = _NewlyCreatedOption
2977
elif name not in self.orig:
2978
self.orig[name] = self.get(name, None)
2979
self.options[name] = value
2981
def remove(self, name):
2982
if name not in self.orig and name in self.options:
2983
self.orig[name] = self.get(name, None)
2984
del self.options[name]
2986
def reset_changes(self):
2989
def apply_changes(self, dirty, store):
2990
"""Apply option value changes.
2992
``self`` has been reloaded from the persistent storage. ``dirty``
2993
contains the changes made since the previous loading.
2995
:param dirty: the mutable section containing the changes.
2997
:param store: the store containing the section
2999
for k, expected in dirty.orig.items():
3000
actual = dirty.get(k, _DeletedOption)
3001
reloaded = self.get(k, _NewlyCreatedOption)
3002
if actual is _DeletedOption:
3003
if k in self.options:
3007
# Report concurrent updates in an ad-hoc way. This should only
3008
# occurs when different processes try to update the same option
3009
# which is not supported (as in: the config framework is not meant
3010
# to be used as a sharing mechanism).
3011
if expected != reloaded:
3012
if actual is _DeletedOption:
3013
actual = '<DELETED>'
3014
if reloaded is _NewlyCreatedOption:
3015
reloaded = '<CREATED>'
3016
if expected is _NewlyCreatedOption:
3017
expected = '<CREATED>'
3018
# Someone changed the value since we get it from the persistent
3020
trace.warning(gettext(
3021
"Option {0} in section {1} of {2} was changed"
3022
" from {3} to {4}. The {5} value will be saved.".format(
3023
k, self.id, store.external_url(), expected,
3025
# No need to keep track of these changes
3026
self.reset_changes()
3029
class Store(object):
3030
"""Abstract interface to persistent storage for configuration options."""
3032
readonly_section_class = Section
3033
mutable_section_class = MutableSection
3036
# Which sections need to be saved (by section id). We use a dict here
3037
# so the dirty sections can be shared by multiple callers.
3038
self.dirty_sections = {}
3040
def is_loaded(self):
3041
"""Returns True if the Store has been loaded.
3043
This is used to implement lazy loading and ensure the persistent
3044
storage is queried only when needed.
3046
raise NotImplementedError(self.is_loaded)
3049
"""Loads the Store from persistent storage."""
3050
raise NotImplementedError(self.load)
3052
def _load_from_string(self, bytes):
3053
"""Create a store from a string in configobj syntax.
3055
:param bytes: A string representing the file content.
3057
raise NotImplementedError(self._load_from_string)
3060
"""Unloads the Store.
3062
This should make is_loaded() return False. This is used when the caller
3063
knows that the persistent storage has changed or may have change since
3066
raise NotImplementedError(self.unload)
3068
def quote(self, value):
3069
"""Quote a configuration option value for storing purposes.
3071
This allows Stacks to present values as they will be stored.
3075
def unquote(self, value):
3076
"""Unquote a configuration option value into unicode.
3078
The received value is quoted as stored.
3083
"""Saves the Store to persistent storage."""
3084
raise NotImplementedError(self.save)
3086
def _need_saving(self):
3087
for s in self.dirty_sections.values():
3089
# At least one dirty section contains a modification
3093
def apply_changes(self, dirty_sections):
3094
"""Apply changes from dirty sections while checking for coherency.
3096
The Store content is discarded and reloaded from persistent storage to
3097
acquire up-to-date values.
3099
Dirty sections are MutableSection which kept track of the value they
3100
are expected to update.
3102
# We need an up-to-date version from the persistent storage, unload the
3103
# store. The reload will occur when needed (triggered by the first
3104
# get_mutable_section() call below.
3106
# Apply the changes from the preserved dirty sections
3107
for section_id, dirty in dirty_sections.items():
3108
clean = self.get_mutable_section(section_id)
3109
clean.apply_changes(dirty, self)
3110
# Everything is clean now
3111
self.dirty_sections = {}
3113
def save_changes(self):
3114
"""Saves the Store to persistent storage if changes occurred.
3116
Apply the changes recorded in the mutable sections to a store content
3117
refreshed from persistent storage.
3119
raise NotImplementedError(self.save_changes)
3121
def external_url(self):
3122
raise NotImplementedError(self.external_url)
3124
def get_sections(self):
3125
"""Returns an ordered iterable of existing sections.
3127
:returns: An iterable of (store, section).
3129
raise NotImplementedError(self.get_sections)
3131
def get_mutable_section(self, section_id=None):
3132
"""Returns the specified mutable section.
3134
:param section_id: The section identifier
3136
raise NotImplementedError(self.get_mutable_section)
3139
# Mostly for debugging use
3140
return "<config.%s(%s)>" % (self.__class__.__name__,
3141
self.external_url())
3144
class CommandLineStore(Store):
3145
"A store to carry command line overrides for the config options."""
3147
def __init__(self, opts=None):
3148
super(CommandLineStore, self).__init__()
3155
# The dict should be cleared but not replaced so it can be shared.
3156
self.options.clear()
3158
def _from_cmdline(self, overrides):
3159
# Reset before accepting new definitions
3161
for over in overrides:
3163
name, value = over.split('=', 1)
3165
raise errors.BzrCommandError(
3166
gettext("Invalid '%s', should be of the form 'name=value'")
3168
self.options[name] = value
3170
def external_url(self):
3171
# Not an url but it makes debugging easier and is never needed
3175
def get_sections(self):
3176
yield self, self.readonly_section_class(None, self.options)
3179
class IniFileStore(Store):
3180
"""A config Store using ConfigObj for storage.
3182
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3183
serialize/deserialize the config file.
3187
"""A config Store using ConfigObj for storage.
3189
super(IniFileStore, self).__init__()
3190
self._config_obj = None
3192
def is_loaded(self):
3193
return self._config_obj != None
3196
self._config_obj = None
3197
self.dirty_sections = {}
3199
def _load_content(self):
3200
"""Load the config file bytes.
3202
This should be provided by subclasses
3204
:return: Byte string
3206
raise NotImplementedError(self._load_content)
3208
def _save_content(self, content):
3209
"""Save the config file bytes.
3211
This should be provided by subclasses
3213
:param content: Config file bytes to write
3215
raise NotImplementedError(self._save_content)
3218
"""Load the store from the associated file."""
3219
if self.is_loaded():
3221
content = self._load_content()
3222
self._load_from_string(content)
3223
for hook in ConfigHooks['load']:
3226
def _load_from_string(self, bytes):
3227
"""Create a config store from a string.
3229
:param bytes: A string representing the file content.
3231
if self.is_loaded():
3232
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3233
co_input = BytesIO(bytes)
3235
# The config files are always stored utf8-encoded
3236
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3238
except configobj.ConfigObjError as e:
3239
self._config_obj = None
3240
raise ParseConfigError(e.errors, self.external_url())
3241
except UnicodeDecodeError:
3242
raise ConfigContentError(self.external_url())
3244
def save_changes(self):
3245
if not self.is_loaded():
3248
if not self._need_saving():
3250
# Preserve the current version
3251
dirty_sections = self.dirty_sections.copy()
3252
self.apply_changes(dirty_sections)
3253
# Save to the persistent storage
3257
if not self.is_loaded():
3261
self._config_obj.write(out)
3262
self._save_content(out.getvalue())
3263
for hook in ConfigHooks['save']:
3266
def get_sections(self):
3267
"""Get the configobj section in the file order.
3269
:returns: An iterable of (store, section).
3271
# We need a loaded store
3274
except (errors.NoSuchFile, errors.PermissionDenied):
3275
# If the file can't be read, there is no sections
3277
cobj = self._config_obj
3279
yield self, self.readonly_section_class(None, cobj)
3280
for section_name in cobj.sections:
3282
self.readonly_section_class(section_name,
3283
cobj[section_name]))
3285
def get_mutable_section(self, section_id=None):
3286
# We need a loaded store
3289
except errors.NoSuchFile:
3290
# The file doesn't exist, let's pretend it was empty
3291
self._load_from_string(b'')
3292
if section_id in self.dirty_sections:
3293
# We already created a mutable section for this id
3294
return self.dirty_sections[section_id]
3295
if section_id is None:
3296
section = self._config_obj
3298
section = self._config_obj.setdefault(section_id, {})
3299
mutable_section = self.mutable_section_class(section_id, section)
3300
# All mutable sections can become dirty
3301
self.dirty_sections[section_id] = mutable_section
3302
return mutable_section
3304
def quote(self, value):
3306
# configobj conflates automagical list values and quoting
3307
self._config_obj.list_values = True
3308
return self._config_obj._quote(value)
3310
self._config_obj.list_values = False
3312
def unquote(self, value):
3313
if value and isinstance(value, string_types):
3314
# _unquote doesn't handle None nor empty strings nor anything that
3315
# is not a string, really.
3316
value = self._config_obj._unquote(value)
3319
def external_url(self):
3320
# Since an IniFileStore can be used without a file (at least in tests),
3321
# it's better to provide something than raising a NotImplementedError.
3322
# All daughter classes are supposed to provide an implementation
3324
return 'In-Process Store, no URL'
3327
class TransportIniFileStore(IniFileStore):
3328
"""IniFileStore that loads files from a transport.
3330
:ivar transport: The transport object where the config file is located.
3332
:ivar file_name: The config file basename in the transport directory.
3335
def __init__(self, transport, file_name):
3336
"""A Store using a ini file on a Transport
3338
:param transport: The transport object where the config file is located.
3339
:param file_name: The config file basename in the transport directory.
3341
super(TransportIniFileStore, self).__init__()
3342
self.transport = transport
3343
self.file_name = file_name
3345
def _load_content(self):
3347
return self.transport.get_bytes(self.file_name)
3348
except errors.PermissionDenied:
3349
trace.warning("Permission denied while trying to load "
3350
"configuration store %s.", self.external_url())
3353
def _save_content(self, content):
3354
self.transport.put_bytes(self.file_name, content)
3356
def external_url(self):
3357
# FIXME: external_url should really accepts an optional relpath
3358
# parameter (bug #750169) :-/ -- vila 2011-04-04
3359
# The following will do in the interim but maybe we don't want to
3360
# expose a path here but rather a config ID and its associated
3361
# object </hand wawe>.
3362
return urlutils.join(
3363
self.transport.external_url(), urlutils.escape(self.file_name))
3366
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3367
# unlockable stores for use with objects that can already ensure the locking
3368
# (think branches). If different stores (not based on ConfigObj) are created,
3369
# they may face the same issue.
3372
class LockableIniFileStore(TransportIniFileStore):
3373
"""A ConfigObjStore using locks on save to ensure store integrity."""
3375
def __init__(self, transport, file_name, lock_dir_name=None):
3376
"""A config Store using ConfigObj for storage.
3378
:param transport: The transport object where the config file is located.
3380
:param file_name: The config file basename in the transport directory.
3382
if lock_dir_name is None:
3383
lock_dir_name = 'lock'
3384
self.lock_dir_name = lock_dir_name
3385
super(LockableIniFileStore, self).__init__(transport, file_name)
3386
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3388
def lock_write(self, token=None):
3389
"""Takes a write lock in the directory containing the config file.
3391
If the directory doesn't exist it is created.
3393
# FIXME: This doesn't check the ownership of the created directories as
3394
# ensure_config_dir_exists does. It should if the transport is local
3395
# -- vila 2011-04-06
3396
self.transport.create_prefix()
3397
token = self._lock.lock_write(token)
3398
return lock.LogicalLockResult(self.unlock, token)
3403
def break_lock(self):
3404
self._lock.break_lock()
3407
with self.lock_write():
3408
# We need to be able to override the undecorated implementation
3409
self.save_without_locking()
3411
def save_without_locking(self):
3412
super(LockableIniFileStore, self).save()
3415
# FIXME: global, breezy, shouldn't that be 'user' instead or even
3416
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3417
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3419
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3420
# functions or a registry will make it easier and clearer for tests, focusing
3421
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3422
# on a poolie's remark)
3423
class GlobalStore(LockableIniFileStore):
3424
"""A config store for global options.
3426
There is a single GlobalStore for a given process.
3429
def __init__(self, possible_transports=None):
3430
(path, kind) = _config_dir()
3431
t = transport.get_transport_from_path(
3432
path, possible_transports=possible_transports)
3433
filename = {'bazaar': 'bazaar.conf', 'breezy': 'breezy.conf'}[kind]
3434
super(GlobalStore, self).__init__(t, filename)
3438
class LocationStore(LockableIniFileStore):
3439
"""A config store for options specific to a location.
3441
There is a single LocationStore for a given process.
3444
def __init__(self, possible_transports=None):
3445
t = transport.get_transport_from_path(
3446
config_dir(), possible_transports=possible_transports)
3447
super(LocationStore, self).__init__(t, 'locations.conf')
3448
self.id = 'locations'
3451
class BranchStore(TransportIniFileStore):
3452
"""A config store for branch options.
3454
There is a single BranchStore for a given branch.
3457
def __init__(self, branch):
3458
super(BranchStore, self).__init__(branch.control_transport,
3460
self.branch = branch
3464
class ControlStore(LockableIniFileStore):
3466
def __init__(self, bzrdir):
3467
super(ControlStore, self).__init__(bzrdir.transport,
3469
lock_dir_name='branch_lock')
3473
class SectionMatcher(object):
3474
"""Select sections into a given Store.
3476
This is intended to be used to postpone getting an iterable of sections
3480
def __init__(self, store):
3483
def get_sections(self):
3484
# This is where we require loading the store so we can see all defined
3486
sections = self.store.get_sections()
3487
# Walk the revisions in the order provided
3488
for store, s in sections:
3492
def match(self, section):
3493
"""Does the proposed section match.
3495
:param section: A Section object.
3497
:returns: True if the section matches, False otherwise.
3499
raise NotImplementedError(self.match)
3502
class NameMatcher(SectionMatcher):
3504
def __init__(self, store, section_id):
3505
super(NameMatcher, self).__init__(store)
3506
self.section_id = section_id
3508
def match(self, section):
3509
return section.id == self.section_id
3512
class LocationSection(Section):
3514
def __init__(self, section, extra_path, branch_name=None):
3515
super(LocationSection, self).__init__(section.id, section.options)
3516
self.extra_path = extra_path
3517
if branch_name is None:
3519
self.locals = {'relpath': extra_path,
3520
'basename': urlutils.basename(extra_path),
3521
'branchname': branch_name}
3523
def get(self, name, default=None, expand=True):
3524
value = super(LocationSection, self).get(name, default)
3525
if value is not None and expand:
3526
policy_name = self.get(name + ':policy', None)
3527
policy = _policy_value.get(policy_name, POLICY_NONE)
3528
if policy == POLICY_APPENDPATH:
3529
value = urlutils.join(value, self.extra_path)
3530
# expand section local options right now (since POLICY_APPENDPATH
3531
# will never add options references, it's ok to expand after it).
3533
for is_ref, chunk in iter_option_refs(value):
3535
chunks.append(chunk)
3538
if ref in self.locals:
3539
chunks.append(self.locals[ref])
3541
chunks.append(chunk)
3542
value = ''.join(chunks)
3546
class StartingPathMatcher(SectionMatcher):
3547
"""Select sections for a given location respecting the Store order."""
3549
# FIXME: Both local paths and urls can be used for section names as well as
3550
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3551
# inherited the fuzziness from the previous ``LocationConfig``
3552
# implementation. We probably need to revisit which encoding is allowed for
3553
# both ``location`` and section names and how we normalize
3554
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3555
# related too. -- vila 2012-01-04
3557
def __init__(self, store, location):
3558
super(StartingPathMatcher, self).__init__(store)
3559
if location.startswith('file://'):
3560
location = urlutils.local_path_from_url(location)
3561
self.location = location
3563
def get_sections(self):
3564
"""Get all sections matching ``location`` in the store.
3566
The most generic sections are described first in the store, then more
3567
specific ones can be provided for reduced scopes.
3569
The returned section are therefore returned in the reversed order so
3570
the most specific ones can be found first.
3572
location_parts = self.location.rstrip('/').split('/')
3574
# Later sections are more specific, they should be returned first
3575
for _, section in reversed(list(store.get_sections())):
3576
if section.id is None:
3577
# The no-name section is always included if present
3578
yield store, LocationSection(section, self.location)
3580
section_path = section.id
3581
if section_path.startswith('file://'):
3582
# the location is already a local path or URL, convert the
3583
# section id to the same format
3584
section_path = urlutils.local_path_from_url(section_path)
3585
if (self.location.startswith(section_path)
3586
or fnmatch.fnmatch(self.location, section_path)):
3587
section_parts = section_path.rstrip('/').split('/')
3588
extra_path = '/'.join(location_parts[len(section_parts):])
3589
yield store, LocationSection(section, extra_path)
3592
class LocationMatcher(SectionMatcher):
3594
def __init__(self, store, location):
3595
super(LocationMatcher, self).__init__(store)
3596
url, params = urlutils.split_segment_parameters(location)
3597
if location.startswith('file://'):
3598
location = urlutils.local_path_from_url(location)
3599
self.location = location
3600
branch_name = params.get('branch')
3601
if branch_name is None:
3602
self.branch_name = urlutils.basename(self.location)
3604
self.branch_name = urlutils.unescape(branch_name)
3606
def _get_matching_sections(self):
3607
"""Get all sections matching ``location``."""
3608
# We slightly diverge from LocalConfig here by allowing the no-name
3609
# section as the most generic one and the lower priority.
3610
no_name_section = None
3612
# Filter out the no_name_section so _iter_for_location_by_parts can be
3613
# used (it assumes all sections have a name).
3614
for _, section in self.store.get_sections():
3615
if section.id is None:
3616
no_name_section = section
3618
all_sections.append(section)
3619
# Unfortunately _iter_for_location_by_parts deals with section names so
3620
# we have to resync.
3621
filtered_sections = _iter_for_location_by_parts(
3622
[s.id for s in all_sections], self.location)
3623
iter_all_sections = iter(all_sections)
3624
matching_sections = []
3625
if no_name_section is not None:
3626
matching_sections.append(
3627
(0, LocationSection(no_name_section, self.location)))
3628
for section_id, extra_path, length in filtered_sections:
3629
# a section id is unique for a given store so it's safe to take the
3630
# first matching section while iterating. Also, all filtered
3631
# sections are part of 'all_sections' and will always be found
3634
section = next(iter_all_sections)
3635
if section_id == section.id:
3636
section = LocationSection(section, extra_path,
3638
matching_sections.append((length, section))
3640
return matching_sections
3642
def get_sections(self):
3643
# Override the default implementation as we want to change the order
3644
# We want the longest (aka more specific) locations first
3645
sections = sorted(self._get_matching_sections(),
3646
key=lambda match: (match[0], match[1].id),
3648
# Sections mentioning 'ignore_parents' restrict the selection
3649
for _, section in sections:
3650
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3651
ignore = section.get('ignore_parents', None)
3652
if ignore is not None:
3653
ignore = ui.bool_from_string(ignore)
3656
# Finally, we have a valid section
3657
yield self.store, section
3660
# FIXME: _shared_stores should be an attribute of a library state once a
3661
# library_state object is always available.
3663
_shared_stores_at_exit_installed = False
3665
class Stack(object):
3666
"""A stack of configurations where an option can be defined"""
3668
def __init__(self, sections_def, store=None, mutable_section_id=None):
3669
"""Creates a stack of sections with an optional store for changes.
3671
:param sections_def: A list of Section or callables that returns an
3672
iterable of Section. This defines the Sections for the Stack and
3673
can be called repeatedly if needed.
3675
:param store: The optional Store where modifications will be
3676
recorded. If none is specified, no modifications can be done.
3678
:param mutable_section_id: The id of the MutableSection where changes
3679
are recorded. This requires the ``store`` parameter to be
3682
self.sections_def = sections_def
3684
self.mutable_section_id = mutable_section_id
3686
def iter_sections(self):
3687
"""Iterate all the defined sections."""
3688
# Ensuring lazy loading is achieved by delaying section matching (which
3689
# implies querying the persistent storage) until it can't be avoided
3690
# anymore by using callables to describe (possibly empty) section
3692
for sections in self.sections_def:
3693
for store, section in sections():
3694
yield store, section
3696
def get(self, name, expand=True, convert=True):
3697
"""Return the *first* option value found in the sections.
3699
This is where we guarantee that sections coming from Store are loaded
3700
lazily: the loading is delayed until we need to either check that an
3701
option exists or get its value, which in turn may require to discover
3702
in which sections it can be defined. Both of these (section and option
3703
existence) require loading the store (even partially).
3705
:param name: The queried option.
3707
:param expand: Whether options references should be expanded.
3709
:param convert: Whether the option value should be converted from
3710
unicode (do nothing for non-registered options).
3712
:returns: The value of the option.
3714
# FIXME: No caching of options nor sections yet -- vila 20110503
3716
found_store = None # Where the option value has been found
3717
# If the option is registered, it may provide additional info about
3720
opt = option_registry.get(name)
3725
def expand_and_convert(val):
3726
# This may need to be called in different contexts if the value is
3727
# None or ends up being None during expansion or conversion.
3730
if isinstance(val, string_types):
3731
val = self._expand_options_in_string(val)
3733
trace.warning('Cannot expand "%s":'
3734
' %s does not support option expansion'
3735
% (name, type(val)))
3737
val = found_store.unquote(val)
3739
val = opt.convert_from_unicode(found_store, val)
3742
# First of all, check if the environment can override the configuration
3744
if opt is not None and opt.override_from_env:
3745
value = opt.get_override()
3746
value = expand_and_convert(value)
3748
for store, section in self.iter_sections():
3749
value = section.get(name)
3750
if value is not None:
3753
value = expand_and_convert(value)
3754
if opt is not None and value is None:
3755
# If the option is registered, it may provide a default value
3756
value = opt.get_default()
3757
value = expand_and_convert(value)
3758
for hook in ConfigHooks['get']:
3759
hook(self, name, value)
3762
def expand_options(self, string, env=None):
3763
"""Expand option references in the string in the configuration context.
3765
:param string: The string containing option(s) to expand.
3767
:param env: An option dict defining additional configuration options or
3768
overriding existing ones.
3770
:returns: The expanded string.
3772
return self._expand_options_in_string(string, env)
3774
def _expand_options_in_string(self, string, env=None, _refs=None):
3775
"""Expand options in the string in the configuration context.
3777
:param string: The string to be expanded.
3779
:param env: An option dict defining additional configuration options or
3780
overriding existing ones.
3782
:param _refs: Private list (FIFO) containing the options being expanded
3785
:returns: The expanded string.
3788
# Not much to expand there
3791
# What references are currently resolved (to detect loops)
3794
# We need to iterate until no more refs appear ({{foo}} will need two
3795
# iterations for example).
3800
for is_ref, chunk in iter_option_refs(result):
3802
chunks.append(chunk)
3807
raise OptionExpansionLoop(string, _refs)
3809
value = self._expand_option(name, env, _refs)
3811
raise ExpandingUnknownOption(name, string)
3812
chunks.append(value)
3814
result = ''.join(chunks)
3817
def _expand_option(self, name, env, _refs):
3818
if env is not None and name in env:
3819
# Special case, values provided in env takes precedence over
3823
value = self.get(name, expand=False, convert=False)
3824
value = self._expand_options_in_string(value, env, _refs)
3827
def _get_mutable_section(self):
3828
"""Get the MutableSection for the Stack.
3830
This is where we guarantee that the mutable section is lazily loaded:
3831
this means we won't load the corresponding store before setting a value
3832
or deleting an option. In practice the store will often be loaded but
3833
this helps catching some programming errors.
3836
section = store.get_mutable_section(self.mutable_section_id)
3837
return store, section
3839
def set(self, name, value):
3840
"""Set a new value for the option."""
3841
store, section = self._get_mutable_section()
3842
section.set(name, store.quote(value))
3843
for hook in ConfigHooks['set']:
3844
hook(self, name, value)
3846
def remove(self, name):
3847
"""Remove an existing option."""
3848
_, section = self._get_mutable_section()
3849
section.remove(name)
3850
for hook in ConfigHooks['remove']:
3854
# Mostly for debugging use
3855
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3857
def _get_overrides(self):
3858
if breezy._global_state is not None:
3859
# TODO(jelmer): Urgh, this is circular so we can't call breezy.get_global_state()
3860
return breezy._global_state.cmdline_overrides.get_sections()
3863
def get_shared_store(self, store, state=None):
3864
"""Get a known shared store.
3866
Store urls uniquely identify them and are used to ensure a single copy
3867
is shared across all users.
3869
:param store: The store known to the caller.
3871
:param state: The library state where the known stores are kept.
3873
:returns: The store received if it's not a known one, an already known
3877
# TODO(jelmer): Urgh, this is circular so we can't call breezy.get_global_state()
3878
state = breezy._global_state
3880
global _shared_stores_at_exit_installed
3881
stores = _shared_stores
3882
def save_config_changes():
3883
for k, store in stores.items():
3884
store.save_changes()
3885
if not _shared_stores_at_exit_installed:
3886
# FIXME: Ugly hack waiting for library_state to always be
3887
# available. -- vila 20120731
3889
atexit.register(save_config_changes)
3890
_shared_stores_at_exit_installed = True
3892
stores = state.config_stores
3893
url = store.external_url()
3901
class MemoryStack(Stack):
3902
"""A configuration stack defined from a string.
3904
This is mainly intended for tests and requires no disk resources.
3907
def __init__(self, content=None):
3908
"""Create an in-memory stack from a given content.
3910
It uses a single store based on configobj and support reading and
3913
:param content: The initial content of the store. If None, the store is
3914
not loaded and ``_load_from_string`` can and should be used if
3917
store = IniFileStore()
3918
if content is not None:
3919
store._load_from_string(content)
3920
super(MemoryStack, self).__init__(
3921
[store.get_sections], store)
3924
class _CompatibleStack(Stack):
3925
"""Place holder for compatibility with previous design.
3927
This is intended to ease the transition from the Config-based design to the
3928
Stack-based design and should not be used nor relied upon by plugins.
3930
One assumption made here is that the daughter classes will all use Stores
3931
derived from LockableIniFileStore).
3933
It implements set() and remove () by re-loading the store before applying
3934
the modification and saving it.
3936
The long term plan being to implement a single write by store to save
3937
all modifications, this class should not be used in the interim.
3940
def set(self, name, value):
3943
super(_CompatibleStack, self).set(name, value)
3944
# Force a write to persistent storage
3947
def remove(self, name):
3950
super(_CompatibleStack, self).remove(name)
3951
# Force a write to persistent storage
3955
class GlobalStack(Stack):
3956
"""Global options only stack.
3958
The following sections are queried:
3960
* command-line overrides,
3962
* the 'DEFAULT' section in bazaar.conf
3964
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3969
gstore = self.get_shared_store(GlobalStore())
3970
super(GlobalStack, self).__init__(
3971
[self._get_overrides,
3972
NameMatcher(gstore, 'DEFAULT').get_sections],
3973
gstore, mutable_section_id='DEFAULT')
3976
class LocationStack(Stack):
3977
"""Per-location options falling back to global options stack.
3980
The following sections are queried:
3982
* command-line overrides,
3984
* the sections matching ``location`` in ``locations.conf``, the order being
3985
defined by the number of path components in the section glob, higher
3986
numbers first (from most specific section to most generic).
3988
* the 'DEFAULT' section in bazaar.conf
3990
This stack will use the ``location`` section in locations.conf as its
3994
def __init__(self, location):
3995
"""Make a new stack for a location and global configuration.
3997
:param location: A URL prefix to """
3998
lstore = self.get_shared_store(LocationStore())
3999
if location.startswith('file://'):
4000
location = urlutils.local_path_from_url(location)
4001
gstore = self.get_shared_store(GlobalStore())
4002
super(LocationStack, self).__init__(
4003
[self._get_overrides,
4004
LocationMatcher(lstore, location).get_sections,
4005
NameMatcher(gstore, 'DEFAULT').get_sections],
4006
lstore, mutable_section_id=location)
4009
class BranchStack(Stack):
4010
"""Per-location options falling back to branch then global options stack.
4012
The following sections are queried:
4014
* command-line overrides,
4016
* the sections matching ``location`` in ``locations.conf``, the order being
4017
defined by the number of path components in the section glob, higher
4018
numbers first (from most specific section to most generic),
4020
* the no-name section in branch.conf,
4022
* the ``DEFAULT`` section in ``bazaar.conf``.
4024
This stack will use the no-name section in ``branch.conf`` as its
4028
def __init__(self, branch):
4029
lstore = self.get_shared_store(LocationStore())
4030
bstore = branch._get_config_store()
4031
gstore = self.get_shared_store(GlobalStore())
4032
super(BranchStack, self).__init__(
4033
[self._get_overrides,
4034
LocationMatcher(lstore, branch.base).get_sections,
4035
NameMatcher(bstore, None).get_sections,
4036
NameMatcher(gstore, 'DEFAULT').get_sections],
4038
self.branch = branch
4040
def lock_write(self, token=None):
4041
return self.branch.lock_write(token)
4044
return self.branch.unlock()
4046
def set(self, name, value):
4047
with self.lock_write():
4048
super(BranchStack, self).set(name, value)
4049
# Unlocking the branch will trigger a store.save_changes() so the
4050
# last unlock saves all the changes.
4052
def remove(self, name):
4053
with self.lock_write():
4054
super(BranchStack, self).remove(name)
4055
# Unlocking the branch will trigger a store.save_changes() so the
4056
# last unlock saves all the changes.
4059
class RemoteControlStack(Stack):
4060
"""Remote control-only options stack."""
4062
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
4063
# with the stack used for remote bzr dirs. RemoteControlStack only uses
4064
# control.conf and is used only for stack options.
4066
def __init__(self, bzrdir):
4067
cstore = bzrdir._get_config_store()
4068
super(RemoteControlStack, self).__init__(
4069
[NameMatcher(cstore, None).get_sections],
4071
self.controldir = bzrdir
4074
class BranchOnlyStack(Stack):
4075
"""Branch-only options stack."""
4077
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4078
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4079
# -- vila 2011-12-16
4081
def __init__(self, branch):
4082
bstore = branch._get_config_store()
4083
super(BranchOnlyStack, self).__init__(
4084
[NameMatcher(bstore, None).get_sections],
4086
self.branch = branch
4088
def lock_write(self, token=None):
4089
return self.branch.lock_write(token)
4092
return self.branch.unlock()
4094
def set(self, name, value):
4095
with self.lock_write():
4096
super(BranchOnlyStack, self).set(name, value)
4097
# Force a write to persistent storage
4098
self.store.save_changes()
4100
def remove(self, name):
4101
with self.lock_write():
4102
super(BranchOnlyStack, self).remove(name)
4103
# Force a write to persistent storage
4104
self.store.save_changes()
4107
class cmd_config(commands.Command):
4108
__doc__ = """Display, set or remove a configuration option.
4110
Display the active value for option NAME.
4112
If --all is specified, NAME is interpreted as a regular expression and all
4113
matching options are displayed mentioning their scope and without resolving
4114
option references in the value). The active value that bzr will take into
4115
account is the first one displayed for each option.
4117
If NAME is not given, --all .* is implied (all options are displayed for the
4120
Setting a value is achieved by using NAME=value without spaces. The value
4121
is set in the most relevant scope and can be checked by displaying the
4124
Removing a value is achieved by using --remove NAME.
4127
takes_args = ['name?']
4131
# FIXME: This should be a registry option so that plugins can register
4132
# their own config files (or not) and will also address
4133
# http://pad.lv/788991 -- vila 20101115
4134
commands.Option('scope', help='Reduce the scope to the specified'
4135
' configuration file.',
4137
commands.Option('all',
4138
help='Display all the defined values for the matching options.',
4140
commands.Option('remove', help='Remove the option from'
4141
' the configuration file.'),
4144
_see_also = ['configuration']
4146
@commands.display_command
4147
def run(self, name=None, all=False, directory=None, scope=None,
4149
if directory is None:
4151
directory = directory_service.directories.dereference(directory)
4152
directory = urlutils.normalize_url(directory)
4154
raise errors.BzrError(
4155
'--all and --remove are mutually exclusive.')
4157
# Delete the option in the given scope
4158
self._remove_config_option(name, directory, scope)
4160
# Defaults to all options
4161
self._show_matching_options('.*', directory, scope)
4164
name, value = name.split('=', 1)
4166
# Display the option(s) value(s)
4168
self._show_matching_options(name, directory, scope)
4170
self._show_value(name, directory, scope)
4173
raise errors.BzrError(
4174
'Only one option can be set.')
4175
# Set the option value
4176
self._set_config_option(name, value, directory, scope)
4178
def _get_stack(self, directory, scope=None, write_access=False):
4179
"""Get the configuration stack specified by ``directory`` and ``scope``.
4181
:param directory: Where the configurations are derived from.
4183
:param scope: A specific config to start from.
4185
:param write_access: Whether a write access to the stack will be
4188
# FIXME: scope should allow access to plugin-specific stacks (even
4189
# reduced to the plugin-specific store), related to
4190
# http://pad.lv/788991 -- vila 2011-11-15
4191
if scope is not None:
4192
if scope == 'breezy':
4193
return GlobalStack()
4194
elif scope == 'locations':
4195
return LocationStack(directory)
4196
elif scope == 'branch':
4198
controldir.ControlDir.open_containing_tree_or_branch(
4201
self.add_cleanup(br.lock_write().unlock)
4202
return br.get_config_stack()
4203
raise NoSuchConfig(scope)
4207
controldir.ControlDir.open_containing_tree_or_branch(
4210
self.add_cleanup(br.lock_write().unlock)
4211
return br.get_config_stack()
4212
except errors.NotBranchError:
4213
return LocationStack(directory)
4215
def _quote_multiline(self, value):
4217
value = '"""' + value + '"""'
4220
def _show_value(self, name, directory, scope):
4221
conf = self._get_stack(directory, scope)
4222
value = conf.get(name, expand=True, convert=False)
4223
if value is not None:
4224
# Quote the value appropriately
4225
value = self._quote_multiline(value)
4226
self.outf.write('%s\n' % (value,))
4228
raise NoSuchConfigOption(name)
4230
def _show_matching_options(self, name, directory, scope):
4231
name = lazy_regex.lazy_compile(name)
4232
# We want any error in the regexp to be raised *now* so we need to
4233
# avoid the delay introduced by the lazy regexp. But, we still do
4234
# want the nicer errors raised by lazy_regex.
4235
name._compile_and_collapse()
4238
conf = self._get_stack(directory, scope)
4239
for store, section in conf.iter_sections():
4240
for oname in section.iter_option_names():
4241
if name.search(oname):
4242
if cur_store_id != store.id:
4243
# Explain where the options are defined
4244
self.outf.write('%s:\n' % (store.id,))
4245
cur_store_id = store.id
4247
if (section.id is not None and cur_section != section.id):
4248
# Display the section id as it appears in the store
4249
# (None doesn't appear by definition)
4250
self.outf.write(' [%s]\n' % (section.id,))
4251
cur_section = section.id
4252
value = section.get(oname, expand=False)
4253
# Quote the value appropriately
4254
value = self._quote_multiline(value)
4255
self.outf.write(' %s = %s\n' % (oname, value))
4257
def _set_config_option(self, name, value, directory, scope):
4258
conf = self._get_stack(directory, scope, write_access=True)
4259
conf.set(name, value)
4260
# Explicitly save the changes
4261
conf.store.save_changes()
4263
def _remove_config_option(self, name, directory, scope):
4265
raise errors.BzrCommandError(
4266
'--remove expects an option to remove.')
4267
conf = self._get_stack(directory, scope, write_access=True)
4270
# Explicitly save the changes
4271
conf.store.save_changes()
4273
raise NoSuchConfigOption(name)
4278
# We need adapters that can build a Store or a Stack in a test context. Test
4279
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4280
# themselves. The builder will receive a test instance and should return a
4281
# ready-to-use store or stack. Plugins that define new store/stacks can also
4282
# register themselves here to be tested against the tests defined in
4283
# breezy.tests.test_config. Note that the builder can be called multiple times
4284
# for the same test.
4286
# The registered object should be a callable receiving a test instance
4287
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4289
test_store_builder_registry = registry.Registry()
4291
# The registered object should be a callable receiving a test instance
4292
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4294
test_stack_builder_registry = registry.Registry()