1508
2299
configobj[name] = value
1510
2301
configobj.setdefault(section, {})[name] = value
2302
for hook in OldConfigHooks['set']:
2303
hook(self, name, value)
2304
self._set_configobj(configobj)
2306
def remove_option(self, option_name, section_name=None):
2307
configobj = self._get_configobj()
2308
if section_name is None:
2309
del configobj[option_name]
2311
del configobj[section_name][option_name]
2312
for hook in OldConfigHooks['remove']:
2313
hook(self, option_name)
1511
2314
self._set_configobj(configobj)
1513
2316
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2318
f = BytesIO(self._transport.get_bytes(self._filename))
2319
for hook in OldConfigHooks['load']:
1516
2322
except errors.NoSuchFile:
2324
except errors.PermissionDenied as e:
2325
trace.warning("Permission denied while trying to open "
2326
"configuration file %s.", urlutils.unescape_for_display(
2327
urlutils.join(self._transport.base, self._filename), "utf-8"))
2330
def _external_url(self):
2331
return urlutils.join(self._transport.external_url(), self._filename)
1519
2333
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2334
f = self._get_config_file()
2337
conf = ConfigObj(f, encoding='utf-8')
2338
except configobj.ConfigObjError as e:
2339
raise errors.ParseConfigError(e.errors, self._external_url())
2340
except UnicodeDecodeError:
2341
raise errors.ConfigContentError(self._external_url())
1522
2346
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2347
out_file = BytesIO()
1524
2348
configobj.write(out_file)
1525
2349
out_file.seek(0)
1526
2350
self._transport.put_file(self._filename, out_file)
2351
for hook in OldConfigHooks['save']:
2355
class Option(object):
2356
"""An option definition.
2358
The option *values* are stored in config files and found in sections.
2360
Here we define various properties about the option itself, its default
2361
value, how to convert it from stores, what to do when invalid values are
2362
encoutered, in which config files it can be stored.
2365
def __init__(self, name, override_from_env=None,
2366
default=None, default_from_env=None,
2367
help=None, from_unicode=None, invalid=None, unquote=True):
2368
"""Build an option definition.
2370
:param name: the name used to refer to the option.
2372
:param override_from_env: A list of environment variables which can
2373
provide override any configuration setting.
2375
:param default: the default value to use when none exist in the config
2376
stores. This is either a string that ``from_unicode`` will convert
2377
into the proper type, a callable returning a unicode string so that
2378
``from_unicode`` can be used on the return value, or a python
2379
object that can be stringified (so only the empty list is supported
2382
:param default_from_env: A list of environment variables which can
2383
provide a default value. 'default' will be used only if none of the
2384
variables specified here are set in the environment.
2386
:param help: a doc string to explain the option to the user.
2388
:param from_unicode: a callable to convert the unicode string
2389
representing the option value in a store or its default value.
2391
:param invalid: the action to be taken when an invalid value is
2392
encountered in a store. This is called only when from_unicode is
2393
invoked to convert a string and returns None or raise ValueError or
2394
TypeError. Accepted values are: None (ignore invalid values),
2395
'warning' (emit a warning), 'error' (emit an error message and
2398
:param unquote: should the unicode value be unquoted before conversion.
2399
This should be used only when the store providing the values cannot
2400
safely unquote them (see http://pad.lv/906897). It is provided so
2401
daughter classes can handle the quoting themselves.
2403
if override_from_env is None:
2404
override_from_env = []
2405
if default_from_env is None:
2406
default_from_env = []
2408
self.override_from_env = override_from_env
2409
# Convert the default value to a unicode string so all values are
2410
# strings internally before conversion (via from_unicode) is attempted.
2413
elif isinstance(default, list):
2414
# Only the empty list is supported
2416
raise AssertionError(
2417
'Only empty lists are supported as default values')
2419
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2420
# Rely on python to convert strings, booleans and integers
2421
self.default = u'%s' % (default,)
2422
elif callable(default):
2423
self.default = default
2425
# other python objects are not expected
2426
raise AssertionError('%r is not supported as a default value'
2428
self.default_from_env = default_from_env
2430
self.from_unicode = from_unicode
2431
self.unquote = unquote
2432
if invalid and invalid not in ('warning', 'error'):
2433
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2434
self.invalid = invalid
2440
def convert_from_unicode(self, store, unicode_value):
2441
if self.unquote and store is not None and unicode_value is not None:
2442
unicode_value = store.unquote(unicode_value)
2443
if self.from_unicode is None or unicode_value is None:
2444
# Don't convert or nothing to convert
2445
return unicode_value
2447
converted = self.from_unicode(unicode_value)
2448
except (ValueError, TypeError):
2449
# Invalid values are ignored
2451
if converted is None and self.invalid is not None:
2452
# The conversion failed
2453
if self.invalid == 'warning':
2454
trace.warning('Value "%s" is not valid for "%s"',
2455
unicode_value, self.name)
2456
elif self.invalid == 'error':
2457
raise errors.ConfigOptionValueError(self.name, unicode_value)
2460
def get_override(self):
2462
for var in self.override_from_env:
2464
# If the env variable is defined, its value takes precedence
2465
value = os.environ[var].decode(osutils.get_user_encoding())
2471
def get_default(self):
2473
for var in self.default_from_env:
2475
# If the env variable is defined, its value is the default one
2476
value = os.environ[var].decode(osutils.get_user_encoding())
2481
# Otherwise, fallback to the value defined at registration
2482
if callable(self.default):
2483
value = self.default()
2484
if not isinstance(value, text_type):
2485
raise AssertionError(
2486
"Callable default value for '%s' should be unicode"
2489
value = self.default
2492
def get_help_topic(self):
2495
def get_help_text(self, additional_see_also=None, plain=True):
2497
from breezy import help_topics
2498
result += help_topics._format_see_also(additional_see_also)
2500
result = help_topics.help_as_plain_text(result)
2504
# Predefined converters to get proper values from store
2506
def bool_from_store(unicode_str):
2507
return ui.bool_from_string(unicode_str)
2510
def int_from_store(unicode_str):
2511
return int(unicode_str)
2514
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2516
def int_SI_from_store(unicode_str):
2517
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2519
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2520
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2523
:return Integer, expanded to its base-10 value if a proper SI unit is
2524
found, None otherwise.
2526
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2527
p = re.compile(regexp, re.IGNORECASE)
2528
m = p.match(unicode_str)
2531
val, _, unit = m.groups()
2535
coeff = _unit_suffixes[unit.upper()]
2537
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2542
def float_from_store(unicode_str):
2543
return float(unicode_str)
2546
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2548
_list_converter_config = configobj.ConfigObj(
2549
{}, encoding='utf-8', list_values=True, interpolation=False)
2552
class ListOption(Option):
2554
def __init__(self, name, default=None, default_from_env=None,
2555
help=None, invalid=None):
2556
"""A list Option definition.
2558
This overrides the base class so the conversion from a unicode string
2559
can take quoting into account.
2561
super(ListOption, self).__init__(
2562
name, default=default, default_from_env=default_from_env,
2563
from_unicode=self.from_unicode, help=help,
2564
invalid=invalid, unquote=False)
2566
def from_unicode(self, unicode_str):
2567
if not isinstance(unicode_str, string_types):
2569
# Now inject our string directly as unicode. All callers got their
2570
# value from configobj, so values that need to be quoted are already
2572
_list_converter_config.reset()
2573
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2574
maybe_list = _list_converter_config['list']
2575
if isinstance(maybe_list, string_types):
2577
# A single value, most probably the user forgot (or didn't care
2578
# to add) the final ','
2581
# The empty string, convert to empty list
2584
# We rely on ConfigObj providing us with a list already
2589
class RegistryOption(Option):
2590
"""Option for a choice from a registry."""
2592
def __init__(self, name, registry, default_from_env=None,
2593
help=None, invalid=None):
2594
"""A registry based Option definition.
2596
This overrides the base class so the conversion from a unicode string
2597
can take quoting into account.
2599
super(RegistryOption, self).__init__(
2600
name, default=lambda: unicode(registry.default_key),
2601
default_from_env=default_from_env,
2602
from_unicode=self.from_unicode, help=help,
2603
invalid=invalid, unquote=False)
2604
self.registry = registry
2606
def from_unicode(self, unicode_str):
2607
if not isinstance(unicode_str, string_types):
2610
return self.registry.get(unicode_str)
2613
"Invalid value %s for %s."
2614
"See help for a list of possible values." % (unicode_str,
2619
ret = [self._help, "\n\nThe following values are supported:\n"]
2620
for key in self.registry.keys():
2621
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2625
_option_ref_re = lazy_regex.lazy_compile('({[^\d\W](?:\.\w|-\w|\w)*})')
2626
"""Describes an expandable option reference.
2628
We want to match the most embedded reference first.
2630
I.e. for '{{foo}}' we will get '{foo}',
2631
for '{bar{baz}}' we will get '{baz}'
2634
def iter_option_refs(string):
2635
# Split isolate refs so every other chunk is a ref
2637
for chunk in _option_ref_re.split(string):
2642
class OptionRegistry(registry.Registry):
2643
"""Register config options by their name.
2645
This overrides ``registry.Registry`` to simplify registration by acquiring
2646
some information from the option object itself.
2649
def _check_option_name(self, option_name):
2650
"""Ensures an option name is valid.
2652
:param option_name: The name to validate.
2654
if _option_ref_re.match('{%s}' % option_name) is None:
2655
raise errors.IllegalOptionName(option_name)
2657
def register(self, option):
2658
"""Register a new option to its name.
2660
:param option: The option to register. Its name is used as the key.
2662
self._check_option_name(option.name)
2663
super(OptionRegistry, self).register(option.name, option,
2666
def register_lazy(self, key, module_name, member_name):
2667
"""Register a new option to be loaded on request.
2669
:param key: the key to request the option later. Since the registration
2670
is lazy, it should be provided and match the option name.
2672
:param module_name: the python path to the module. Such as 'os.path'.
2674
:param member_name: the member of the module to return. If empty or
2675
None, get() will return the module itself.
2677
self._check_option_name(key)
2678
super(OptionRegistry, self).register_lazy(key,
2679
module_name, member_name)
2681
def get_help(self, key=None):
2682
"""Get the help text associated with the given key"""
2683
option = self.get(key)
2684
the_help = option.help
2685
if callable(the_help):
2686
return the_help(self, key)
2690
option_registry = OptionRegistry()
2693
# Registered options in lexicographical order
2695
option_registry.register(
2696
Option('append_revisions_only',
2697
default=None, from_unicode=bool_from_store, invalid='warning',
2699
Whether to only append revisions to the mainline.
2701
If this is set to true, then it is not possible to change the
2702
existing mainline of the branch.
2704
option_registry.register(
2705
ListOption('acceptable_keys',
2708
List of GPG key patterns which are acceptable for verification.
2710
option_registry.register(
2711
Option('add.maximum_file_size',
2712
default=u'20MB', from_unicode=int_SI_from_store,
2714
Size above which files should be added manually.
2716
Files below this size are added automatically when using ``bzr add`` without
2719
A negative value means disable the size check.
2721
option_registry.register(
2723
default=None, from_unicode=bool_from_store,
2725
Is the branch bound to ``bound_location``.
2727
If set to "True", the branch should act as a checkout, and push each commit to
2728
the bound_location. This option is normally set by ``bind``/``unbind``.
2730
See also: bound_location.
2732
option_registry.register(
2733
Option('bound_location',
2736
The location that commits should go to when acting as a checkout.
2738
This option is normally set by ``bind``.
2742
option_registry.register(
2743
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2745
Whether revisions associated with tags should be fetched.
2747
option_registry.register_lazy(
2748
'bzr.transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2749
option_registry.register(
2750
Option('bzr.workingtree.worth_saving_limit', default=10,
2751
from_unicode=int_from_store, invalid='warning',
2753
How many changes before saving the dirstate.
2755
-1 means that we will never rewrite the dirstate file for only
2756
stat-cache changes. Regardless of this setting, we will always rewrite
2757
the dirstate file if a file is added/removed/renamed/etc. This flag only
2758
affects the behavior of updating the dirstate file after we notice that
2759
a file has been touched.
2761
option_registry.register(
2762
Option('bugtracker', default=None,
2764
Default bug tracker to use.
2766
This bug tracker will be used for example when marking bugs
2767
as fixed using ``bzr commit --fixes``, if no explicit
2768
bug tracker was specified.
2770
option_registry.register(
2771
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2772
from_unicode=signature_policy_from_unicode,
2774
GPG checking policy.
2776
Possible values: require, ignore, check-available (default)
2778
this option will control whether bzr will require good gpg
2779
signatures, ignore them, or check them if they are
2782
option_registry.register(
2783
Option('child_submit_format',
2784
help='''The preferred format of submissions to this branch.'''))
2785
option_registry.register(
2786
Option('child_submit_to',
2787
help='''Where submissions to this branch are mailed to.'''))
2788
option_registry.register(
2789
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2790
from_unicode=signing_policy_from_unicode,
2794
Possible values: always, never, when-required (default)
2796
This option controls whether bzr will always create
2797
gpg signatures or not on commits.
2799
option_registry.register(
2800
Option('dirstate.fdatasync', default=True,
2801
from_unicode=bool_from_store,
2803
Flush dirstate changes onto physical disk?
2805
If true (default), working tree metadata changes are flushed through the
2806
OS buffers to physical disk. This is somewhat slower, but means data
2807
should not be lost if the machine crashes. See also repository.fdatasync.
2809
option_registry.register(
2810
ListOption('debug_flags', default=[],
2811
help='Debug flags to activate.'))
2812
option_registry.register(
2813
Option('default_format', default='2a',
2814
help='Format used when creating branches.'))
2815
option_registry.register(
2816
Option('dpush_strict', default=None,
2817
from_unicode=bool_from_store,
2819
The default value for ``dpush --strict``.
2821
If present, defines the ``--strict`` option default value for checking
2822
uncommitted changes before pushing into a different VCS without any
2823
custom bzr metadata.
2825
option_registry.register(
2827
help='The command called to launch an editor to enter a message.'))
2828
option_registry.register(
2829
Option('email', override_from_env=['BRZ_EMAIL'], default=default_email,
2830
help='The users identity'))
2831
option_registry.register(
2832
Option('gpg_signing_command',
2835
Program to use use for creating signatures.
2837
This should support at least the -u and --clearsign options.
2839
option_registry.register(
2840
Option('gpg_signing_key',
2843
GPG key to use for signing.
2845
This defaults to the first key associated with the users email.
2847
option_registry.register(
2848
Option('ignore_missing_extensions', default=False,
2849
from_unicode=bool_from_store,
2851
Control the missing extensions warning display.
2853
The warning will not be emitted if set to True.
2855
option_registry.register(
2857
help='Language to translate messages into.'))
2858
option_registry.register(
2859
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2861
Steal locks that appears to be dead.
2863
If set to True, bzr will check if a lock is supposed to be held by an
2864
active process from the same user on the same machine. If the user and
2865
machine match, but no process with the given PID is active, then bzr
2866
will automatically break the stale lock, and create a new lock for
2868
Otherwise, bzr will prompt as normal to break the lock.
2870
option_registry.register(
2871
Option('log_format', default='long',
2873
Log format to use when displaying revisions.
2875
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2876
may be provided by plugins.
2878
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2880
option_registry.register(
2881
Option('output_encoding',
2882
help= 'Unicode encoding for output'
2883
' (terminal encoding if not specified).'))
2884
option_registry.register(
2885
Option('parent_location',
2888
The location of the default branch for pull or merge.
2890
This option is normally set when creating a branch, the first ``pull`` or by
2891
``pull --remember``.
2893
option_registry.register(
2894
Option('post_commit', default=None,
2896
Post commit functions.
2898
An ordered list of python functions to call, separated by spaces.
2900
Each function takes branch, rev_id as parameters.
2902
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2904
option_registry.register(
2905
Option('public_branch',
2908
A publically-accessible version of this branch.
2910
This implies that the branch setting this option is not publically-accessible.
2911
Used and set by ``bzr send``.
2913
option_registry.register(
2914
Option('push_location',
2917
The location of the default branch for push.
2919
This option is normally set by the first ``push`` or ``push --remember``.
2921
option_registry.register(
2922
Option('push_strict', default=None,
2923
from_unicode=bool_from_store,
2925
The default value for ``push --strict``.
2927
If present, defines the ``--strict`` option default value for checking
2928
uncommitted changes before sending a merge directive.
2930
option_registry.register(
2931
Option('repository.fdatasync', default=True,
2932
from_unicode=bool_from_store,
2934
Flush repository changes onto physical disk?
2936
If true (default), repository changes are flushed through the OS buffers
2937
to physical disk. This is somewhat slower, but means data should not be
2938
lost if the machine crashes. See also dirstate.fdatasync.
2940
option_registry.register_lazy('smtp_server',
2941
'breezy.smtp_connection', 'smtp_server')
2942
option_registry.register_lazy('smtp_password',
2943
'breezy.smtp_connection', 'smtp_password')
2944
option_registry.register_lazy('smtp_username',
2945
'breezy.smtp_connection', 'smtp_username')
2946
option_registry.register(
2947
Option('selftest.timeout',
2949
from_unicode=int_from_store,
2950
help='Abort selftest if one test takes longer than this many seconds',
2953
option_registry.register(
2954
Option('send_strict', default=None,
2955
from_unicode=bool_from_store,
2957
The default value for ``send --strict``.
2959
If present, defines the ``--strict`` option default value for checking
2960
uncommitted changes before sending a bundle.
2963
option_registry.register(
2964
Option('serve.client_timeout',
2965
default=300.0, from_unicode=float_from_store,
2966
help="If we wait for a new request from a client for more than"
2967
" X seconds, consider the client idle, and hangup."))
2968
option_registry.register(
2969
Option('stacked_on_location',
2971
help="""The location where this branch is stacked on."""))
2972
option_registry.register(
2973
Option('submit_branch',
2976
The branch you intend to submit your current work to.
2978
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2979
by the ``submit:`` revision spec.
2981
option_registry.register(
2983
help='''Where submissions from this branch are mailed to.'''))
2984
option_registry.register(
2985
ListOption('suppress_warnings',
2987
help="List of warning classes to suppress."))
2988
option_registry.register(
2989
Option('validate_signatures_in_log', default=False,
2990
from_unicode=bool_from_store, invalid='warning',
2991
help='''Whether to validate signatures in brz log.'''))
2992
option_registry.register_lazy('ssl.ca_certs',
2993
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2995
option_registry.register_lazy('ssl.cert_reqs',
2996
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2999
class Section(object):
3000
"""A section defines a dict of option name => value.
3002
This is merely a read-only dict which can add some knowledge about the
3003
options. It is *not* a python dict object though and doesn't try to mimic
3007
def __init__(self, section_id, options):
3008
self.id = section_id
3009
# We re-use the dict-like object received
3010
self.options = options
3012
def get(self, name, default=None, expand=True):
3013
return self.options.get(name, default)
3015
def iter_option_names(self):
3016
for k in self.options.iterkeys():
3020
# Mostly for debugging use
3021
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
3024
_NewlyCreatedOption = object()
3025
"""Was the option created during the MutableSection lifetime"""
3026
_DeletedOption = object()
3027
"""Was the option deleted during the MutableSection lifetime"""
3030
class MutableSection(Section):
3031
"""A section allowing changes and keeping track of the original values."""
3033
def __init__(self, section_id, options):
3034
super(MutableSection, self).__init__(section_id, options)
3035
self.reset_changes()
3037
def set(self, name, value):
3038
if name not in self.options:
3039
# This is a new option
3040
self.orig[name] = _NewlyCreatedOption
3041
elif name not in self.orig:
3042
self.orig[name] = self.get(name, None)
3043
self.options[name] = value
3045
def remove(self, name):
3046
if name not in self.orig and name in self.options:
3047
self.orig[name] = self.get(name, None)
3048
del self.options[name]
3050
def reset_changes(self):
3053
def apply_changes(self, dirty, store):
3054
"""Apply option value changes.
3056
``self`` has been reloaded from the persistent storage. ``dirty``
3057
contains the changes made since the previous loading.
3059
:param dirty: the mutable section containing the changes.
3061
:param store: the store containing the section
3063
for k, expected in dirty.orig.iteritems():
3064
actual = dirty.get(k, _DeletedOption)
3065
reloaded = self.get(k, _NewlyCreatedOption)
3066
if actual is _DeletedOption:
3067
if k in self.options:
3071
# Report concurrent updates in an ad-hoc way. This should only
3072
# occurs when different processes try to update the same option
3073
# which is not supported (as in: the config framework is not meant
3074
# to be used as a sharing mechanism).
3075
if expected != reloaded:
3076
if actual is _DeletedOption:
3077
actual = '<DELETED>'
3078
if reloaded is _NewlyCreatedOption:
3079
reloaded = '<CREATED>'
3080
if expected is _NewlyCreatedOption:
3081
expected = '<CREATED>'
3082
# Someone changed the value since we get it from the persistent
3084
trace.warning(gettext(
3085
"Option {0} in section {1} of {2} was changed"
3086
" from {3} to {4}. The {5} value will be saved.".format(
3087
k, self.id, store.external_url(), expected,
3089
# No need to keep track of these changes
3090
self.reset_changes()
3093
class Store(object):
3094
"""Abstract interface to persistent storage for configuration options."""
3096
readonly_section_class = Section
3097
mutable_section_class = MutableSection
3100
# Which sections need to be saved (by section id). We use a dict here
3101
# so the dirty sections can be shared by multiple callers.
3102
self.dirty_sections = {}
3104
def is_loaded(self):
3105
"""Returns True if the Store has been loaded.
3107
This is used to implement lazy loading and ensure the persistent
3108
storage is queried only when needed.
3110
raise NotImplementedError(self.is_loaded)
3113
"""Loads the Store from persistent storage."""
3114
raise NotImplementedError(self.load)
3116
def _load_from_string(self, bytes):
3117
"""Create a store from a string in configobj syntax.
3119
:param bytes: A string representing the file content.
3121
raise NotImplementedError(self._load_from_string)
3124
"""Unloads the Store.
3126
This should make is_loaded() return False. This is used when the caller
3127
knows that the persistent storage has changed or may have change since
3130
raise NotImplementedError(self.unload)
3132
def quote(self, value):
3133
"""Quote a configuration option value for storing purposes.
3135
This allows Stacks to present values as they will be stored.
3139
def unquote(self, value):
3140
"""Unquote a configuration option value into unicode.
3142
The received value is quoted as stored.
3147
"""Saves the Store to persistent storage."""
3148
raise NotImplementedError(self.save)
3150
def _need_saving(self):
3151
for s in self.dirty_sections.values():
3153
# At least one dirty section contains a modification
3157
def apply_changes(self, dirty_sections):
3158
"""Apply changes from dirty sections while checking for coherency.
3160
The Store content is discarded and reloaded from persistent storage to
3161
acquire up-to-date values.
3163
Dirty sections are MutableSection which kept track of the value they
3164
are expected to update.
3166
# We need an up-to-date version from the persistent storage, unload the
3167
# store. The reload will occur when needed (triggered by the first
3168
# get_mutable_section() call below.
3170
# Apply the changes from the preserved dirty sections
3171
for section_id, dirty in dirty_sections.iteritems():
3172
clean = self.get_mutable_section(section_id)
3173
clean.apply_changes(dirty, self)
3174
# Everything is clean now
3175
self.dirty_sections = {}
3177
def save_changes(self):
3178
"""Saves the Store to persistent storage if changes occurred.
3180
Apply the changes recorded in the mutable sections to a store content
3181
refreshed from persistent storage.
3183
raise NotImplementedError(self.save_changes)
3185
def external_url(self):
3186
raise NotImplementedError(self.external_url)
3188
def get_sections(self):
3189
"""Returns an ordered iterable of existing sections.
3191
:returns: An iterable of (store, section).
3193
raise NotImplementedError(self.get_sections)
3195
def get_mutable_section(self, section_id=None):
3196
"""Returns the specified mutable section.
3198
:param section_id: The section identifier
3200
raise NotImplementedError(self.get_mutable_section)
3203
# Mostly for debugging use
3204
return "<config.%s(%s)>" % (self.__class__.__name__,
3205
self.external_url())
3208
class CommandLineStore(Store):
3209
"A store to carry command line overrides for the config options."""
3211
def __init__(self, opts=None):
3212
super(CommandLineStore, self).__init__()
3219
# The dict should be cleared but not replaced so it can be shared.
3220
self.options.clear()
3222
def _from_cmdline(self, overrides):
3223
# Reset before accepting new definitions
3225
for over in overrides:
3227
name, value = over.split('=', 1)
3229
raise errors.BzrCommandError(
3230
gettext("Invalid '%s', should be of the form 'name=value'")
3232
self.options[name] = value
3234
def external_url(self):
3235
# Not an url but it makes debugging easier and is never needed
3239
def get_sections(self):
3240
yield self, self.readonly_section_class(None, self.options)
3243
class IniFileStore(Store):
3244
"""A config Store using ConfigObj for storage.
3246
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3247
serialize/deserialize the config file.
3251
"""A config Store using ConfigObj for storage.
3253
super(IniFileStore, self).__init__()
3254
self._config_obj = None
3256
def is_loaded(self):
3257
return self._config_obj != None
3260
self._config_obj = None
3261
self.dirty_sections = {}
3263
def _load_content(self):
3264
"""Load the config file bytes.
3266
This should be provided by subclasses
3268
:return: Byte string
3270
raise NotImplementedError(self._load_content)
3272
def _save_content(self, content):
3273
"""Save the config file bytes.
3275
This should be provided by subclasses
3277
:param content: Config file bytes to write
3279
raise NotImplementedError(self._save_content)
3282
"""Load the store from the associated file."""
3283
if self.is_loaded():
3285
content = self._load_content()
3286
self._load_from_string(content)
3287
for hook in ConfigHooks['load']:
3290
def _load_from_string(self, bytes):
3291
"""Create a config store from a string.
3293
:param bytes: A string representing the file content.
3295
if self.is_loaded():
3296
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3297
co_input = BytesIO(bytes)
3299
# The config files are always stored utf8-encoded
3300
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3302
except configobj.ConfigObjError as e:
3303
self._config_obj = None
3304
raise errors.ParseConfigError(e.errors, self.external_url())
3305
except UnicodeDecodeError:
3306
raise errors.ConfigContentError(self.external_url())
3308
def save_changes(self):
3309
if not self.is_loaded():
3312
if not self._need_saving():
3314
# Preserve the current version
3315
dirty_sections = dict(self.dirty_sections.items())
3316
self.apply_changes(dirty_sections)
3317
# Save to the persistent storage
3321
if not self.is_loaded():
3325
self._config_obj.write(out)
3326
self._save_content(out.getvalue())
3327
for hook in ConfigHooks['save']:
3330
def get_sections(self):
3331
"""Get the configobj section in the file order.
3333
:returns: An iterable of (store, section).
3335
# We need a loaded store
3338
except (errors.NoSuchFile, errors.PermissionDenied):
3339
# If the file can't be read, there is no sections
3341
cobj = self._config_obj
3343
yield self, self.readonly_section_class(None, cobj)
3344
for section_name in cobj.sections:
3346
self.readonly_section_class(section_name,
3347
cobj[section_name]))
3349
def get_mutable_section(self, section_id=None):
3350
# We need a loaded store
3353
except errors.NoSuchFile:
3354
# The file doesn't exist, let's pretend it was empty
3355
self._load_from_string('')
3356
if section_id in self.dirty_sections:
3357
# We already created a mutable section for this id
3358
return self.dirty_sections[section_id]
3359
if section_id is None:
3360
section = self._config_obj
3362
section = self._config_obj.setdefault(section_id, {})
3363
mutable_section = self.mutable_section_class(section_id, section)
3364
# All mutable sections can become dirty
3365
self.dirty_sections[section_id] = mutable_section
3366
return mutable_section
3368
def quote(self, value):
3370
# configobj conflates automagical list values and quoting
3371
self._config_obj.list_values = True
3372
return self._config_obj._quote(value)
3374
self._config_obj.list_values = False
3376
def unquote(self, value):
3377
if value and isinstance(value, string_types):
3378
# _unquote doesn't handle None nor empty strings nor anything that
3379
# is not a string, really.
3380
value = self._config_obj._unquote(value)
3383
def external_url(self):
3384
# Since an IniFileStore can be used without a file (at least in tests),
3385
# it's better to provide something than raising a NotImplementedError.
3386
# All daughter classes are supposed to provide an implementation
3388
return 'In-Process Store, no URL'
3391
class TransportIniFileStore(IniFileStore):
3392
"""IniFileStore that loads files from a transport.
3394
:ivar transport: The transport object where the config file is located.
3396
:ivar file_name: The config file basename in the transport directory.
3399
def __init__(self, transport, file_name):
3400
"""A Store using a ini file on a Transport
3402
:param transport: The transport object where the config file is located.
3403
:param file_name: The config file basename in the transport directory.
3405
super(TransportIniFileStore, self).__init__()
3406
self.transport = transport
3407
self.file_name = file_name
3409
def _load_content(self):
3411
return self.transport.get_bytes(self.file_name)
3412
except errors.PermissionDenied:
3413
trace.warning("Permission denied while trying to load "
3414
"configuration store %s.", self.external_url())
3417
def _save_content(self, content):
3418
self.transport.put_bytes(self.file_name, content)
3420
def external_url(self):
3421
# FIXME: external_url should really accepts an optional relpath
3422
# parameter (bug #750169) :-/ -- vila 2011-04-04
3423
# The following will do in the interim but maybe we don't want to
3424
# expose a path here but rather a config ID and its associated
3425
# object </hand wawe>.
3426
return urlutils.join(self.transport.external_url(), self.file_name.encode("ascii"))
3429
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3430
# unlockable stores for use with objects that can already ensure the locking
3431
# (think branches). If different stores (not based on ConfigObj) are created,
3432
# they may face the same issue.
3435
class LockableIniFileStore(TransportIniFileStore):
3436
"""A ConfigObjStore using locks on save to ensure store integrity."""
3438
def __init__(self, transport, file_name, lock_dir_name=None):
3439
"""A config Store using ConfigObj for storage.
3441
:param transport: The transport object where the config file is located.
3443
:param file_name: The config file basename in the transport directory.
3445
if lock_dir_name is None:
3446
lock_dir_name = 'lock'
3447
self.lock_dir_name = lock_dir_name
3448
super(LockableIniFileStore, self).__init__(transport, file_name)
3449
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3451
def lock_write(self, token=None):
3452
"""Takes a write lock in the directory containing the config file.
3454
If the directory doesn't exist it is created.
3456
# FIXME: This doesn't check the ownership of the created directories as
3457
# ensure_config_dir_exists does. It should if the transport is local
3458
# -- vila 2011-04-06
3459
self.transport.create_prefix()
3460
return self._lock.lock_write(token)
3465
def break_lock(self):
3466
self._lock.break_lock()
3470
# We need to be able to override the undecorated implementation
3471
self.save_without_locking()
3473
def save_without_locking(self):
3474
super(LockableIniFileStore, self).save()
3477
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3478
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3479
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3481
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3482
# functions or a registry will make it easier and clearer for tests, focusing
3483
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3484
# on a poolie's remark)
3485
class GlobalStore(LockableIniFileStore):
3486
"""A config store for global options.
3488
There is a single GlobalStore for a given process.
3491
def __init__(self, possible_transports=None):
3492
t = transport.get_transport_from_path(
3493
config_dir(), possible_transports=possible_transports)
3494
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3498
class LocationStore(LockableIniFileStore):
3499
"""A config store for options specific to a location.
3501
There is a single LocationStore for a given process.
3504
def __init__(self, possible_transports=None):
3505
t = transport.get_transport_from_path(
3506
config_dir(), possible_transports=possible_transports)
3507
super(LocationStore, self).__init__(t, 'locations.conf')
3508
self.id = 'locations'
3511
class BranchStore(TransportIniFileStore):
3512
"""A config store for branch options.
3514
There is a single BranchStore for a given branch.
3517
def __init__(self, branch):
3518
super(BranchStore, self).__init__(branch.control_transport,
3520
self.branch = branch
3524
class ControlStore(LockableIniFileStore):
3526
def __init__(self, bzrdir):
3527
super(ControlStore, self).__init__(bzrdir.transport,
3529
lock_dir_name='branch_lock')
3533
class SectionMatcher(object):
3534
"""Select sections into a given Store.
3536
This is intended to be used to postpone getting an iterable of sections
3540
def __init__(self, store):
3543
def get_sections(self):
3544
# This is where we require loading the store so we can see all defined
3546
sections = self.store.get_sections()
3547
# Walk the revisions in the order provided
3548
for store, s in sections:
3552
def match(self, section):
3553
"""Does the proposed section match.
3555
:param section: A Section object.
3557
:returns: True if the section matches, False otherwise.
3559
raise NotImplementedError(self.match)
3562
class NameMatcher(SectionMatcher):
3564
def __init__(self, store, section_id):
3565
super(NameMatcher, self).__init__(store)
3566
self.section_id = section_id
3568
def match(self, section):
3569
return section.id == self.section_id
3572
class LocationSection(Section):
3574
def __init__(self, section, extra_path, branch_name=None):
3575
super(LocationSection, self).__init__(section.id, section.options)
3576
self.extra_path = extra_path
3577
if branch_name is None:
3579
self.locals = {'relpath': extra_path,
3580
'basename': urlutils.basename(extra_path),
3581
'branchname': branch_name}
3583
def get(self, name, default=None, expand=True):
3584
value = super(LocationSection, self).get(name, default)
3585
if value is not None and expand:
3586
policy_name = self.get(name + ':policy', None)
3587
policy = _policy_value.get(policy_name, POLICY_NONE)
3588
if policy == POLICY_APPENDPATH:
3589
value = urlutils.join(value, self.extra_path)
3590
# expand section local options right now (since POLICY_APPENDPATH
3591
# will never add options references, it's ok to expand after it).
3593
for is_ref, chunk in iter_option_refs(value):
3595
chunks.append(chunk)
3598
if ref in self.locals:
3599
chunks.append(self.locals[ref])
3601
chunks.append(chunk)
3602
value = ''.join(chunks)
3606
class StartingPathMatcher(SectionMatcher):
3607
"""Select sections for a given location respecting the Store order."""
3609
# FIXME: Both local paths and urls can be used for section names as well as
3610
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3611
# inherited the fuzziness from the previous ``LocationConfig``
3612
# implementation. We probably need to revisit which encoding is allowed for
3613
# both ``location`` and section names and how we normalize
3614
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3615
# related too. -- vila 2012-01-04
3617
def __init__(self, store, location):
3618
super(StartingPathMatcher, self).__init__(store)
3619
if location.startswith('file://'):
3620
location = urlutils.local_path_from_url(location)
3621
self.location = location
3623
def get_sections(self):
3624
"""Get all sections matching ``location`` in the store.
3626
The most generic sections are described first in the store, then more
3627
specific ones can be provided for reduced scopes.
3629
The returned section are therefore returned in the reversed order so
3630
the most specific ones can be found first.
3632
location_parts = self.location.rstrip('/').split('/')
3634
# Later sections are more specific, they should be returned first
3635
for _, section in reversed(list(store.get_sections())):
3636
if section.id is None:
3637
# The no-name section is always included if present
3638
yield store, LocationSection(section, self.location)
3640
section_path = section.id
3641
if section_path.startswith('file://'):
3642
# the location is already a local path or URL, convert the
3643
# section id to the same format
3644
section_path = urlutils.local_path_from_url(section_path)
3645
if (self.location.startswith(section_path)
3646
or fnmatch.fnmatch(self.location, section_path)):
3647
section_parts = section_path.rstrip('/').split('/')
3648
extra_path = '/'.join(location_parts[len(section_parts):])
3649
yield store, LocationSection(section, extra_path)
3652
class LocationMatcher(SectionMatcher):
3654
def __init__(self, store, location):
3655
super(LocationMatcher, self).__init__(store)
3656
url, params = urlutils.split_segment_parameters(location)
3657
if location.startswith('file://'):
3658
location = urlutils.local_path_from_url(location)
3659
self.location = location
3660
branch_name = params.get('branch')
3661
if branch_name is None:
3662
self.branch_name = urlutils.basename(self.location)
3664
self.branch_name = urlutils.unescape(branch_name)
3666
def _get_matching_sections(self):
3667
"""Get all sections matching ``location``."""
3668
# We slightly diverge from LocalConfig here by allowing the no-name
3669
# section as the most generic one and the lower priority.
3670
no_name_section = None
3672
# Filter out the no_name_section so _iter_for_location_by_parts can be
3673
# used (it assumes all sections have a name).
3674
for _, section in self.store.get_sections():
3675
if section.id is None:
3676
no_name_section = section
3678
all_sections.append(section)
3679
# Unfortunately _iter_for_location_by_parts deals with section names so
3680
# we have to resync.
3681
filtered_sections = _iter_for_location_by_parts(
3682
[s.id for s in all_sections], self.location)
3683
iter_all_sections = iter(all_sections)
3684
matching_sections = []
3685
if no_name_section is not None:
3686
matching_sections.append(
3687
(0, LocationSection(no_name_section, self.location)))
3688
for section_id, extra_path, length in filtered_sections:
3689
# a section id is unique for a given store so it's safe to take the
3690
# first matching section while iterating. Also, all filtered
3691
# sections are part of 'all_sections' and will always be found
3694
section = iter_all_sections.next()
3695
if section_id == section.id:
3696
section = LocationSection(section, extra_path,
3698
matching_sections.append((length, section))
3700
return matching_sections
3702
def get_sections(self):
3703
# Override the default implementation as we want to change the order
3704
# We want the longest (aka more specific) locations first
3705
sections = sorted(self._get_matching_sections(),
3706
key=lambda match: (match[0], match[1].id),
3708
# Sections mentioning 'ignore_parents' restrict the selection
3709
for _, section in sections:
3710
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3711
ignore = section.get('ignore_parents', None)
3712
if ignore is not None:
3713
ignore = ui.bool_from_string(ignore)
3716
# Finally, we have a valid section
3717
yield self.store, section
3720
# FIXME: _shared_stores should be an attribute of a library state once a
3721
# library_state object is always available.
3723
_shared_stores_at_exit_installed = False
3725
class Stack(object):
3726
"""A stack of configurations where an option can be defined"""
3728
def __init__(self, sections_def, store=None, mutable_section_id=None):
3729
"""Creates a stack of sections with an optional store for changes.
3731
:param sections_def: A list of Section or callables that returns an
3732
iterable of Section. This defines the Sections for the Stack and
3733
can be called repeatedly if needed.
3735
:param store: The optional Store where modifications will be
3736
recorded. If none is specified, no modifications can be done.
3738
:param mutable_section_id: The id of the MutableSection where changes
3739
are recorded. This requires the ``store`` parameter to be
3742
self.sections_def = sections_def
3744
self.mutable_section_id = mutable_section_id
3746
def iter_sections(self):
3747
"""Iterate all the defined sections."""
3748
# Ensuring lazy loading is achieved by delaying section matching (which
3749
# implies querying the persistent storage) until it can't be avoided
3750
# anymore by using callables to describe (possibly empty) section
3752
for sections in self.sections_def:
3753
for store, section in sections():
3754
yield store, section
3756
def get(self, name, expand=True, convert=True):
3757
"""Return the *first* option value found in the sections.
3759
This is where we guarantee that sections coming from Store are loaded
3760
lazily: the loading is delayed until we need to either check that an
3761
option exists or get its value, which in turn may require to discover
3762
in which sections it can be defined. Both of these (section and option
3763
existence) require loading the store (even partially).
3765
:param name: The queried option.
3767
:param expand: Whether options references should be expanded.
3769
:param convert: Whether the option value should be converted from
3770
unicode (do nothing for non-registered options).
3772
:returns: The value of the option.
3774
# FIXME: No caching of options nor sections yet -- vila 20110503
3776
found_store = None # Where the option value has been found
3777
# If the option is registered, it may provide additional info about
3780
opt = option_registry.get(name)
3785
def expand_and_convert(val):
3786
# This may need to be called in different contexts if the value is
3787
# None or ends up being None during expansion or conversion.
3790
if isinstance(val, string_types):
3791
val = self._expand_options_in_string(val)
3793
trace.warning('Cannot expand "%s":'
3794
' %s does not support option expansion'
3795
% (name, type(val)))
3797
val = found_store.unquote(val)
3799
val = opt.convert_from_unicode(found_store, val)
3802
# First of all, check if the environment can override the configuration
3804
if opt is not None and opt.override_from_env:
3805
value = opt.get_override()
3806
value = expand_and_convert(value)
3808
for store, section in self.iter_sections():
3809
value = section.get(name)
3810
if value is not None:
3813
value = expand_and_convert(value)
3814
if opt is not None and value is None:
3815
# If the option is registered, it may provide a default value
3816
value = opt.get_default()
3817
value = expand_and_convert(value)
3818
for hook in ConfigHooks['get']:
3819
hook(self, name, value)
3822
def expand_options(self, string, env=None):
3823
"""Expand option references in the string in the configuration context.
3825
:param string: The string containing option(s) to expand.
3827
:param env: An option dict defining additional configuration options or
3828
overriding existing ones.
3830
:returns: The expanded string.
3832
return self._expand_options_in_string(string, env)
3834
def _expand_options_in_string(self, string, env=None, _refs=None):
3835
"""Expand options in the string in the configuration context.
3837
:param string: The string to be expanded.
3839
:param env: An option dict defining additional configuration options or
3840
overriding existing ones.
3842
:param _refs: Private list (FIFO) containing the options being expanded
3845
:returns: The expanded string.
3848
# Not much to expand there
3851
# What references are currently resolved (to detect loops)
3854
# We need to iterate until no more refs appear ({{foo}} will need two
3855
# iterations for example).
3860
for is_ref, chunk in iter_option_refs(result):
3862
chunks.append(chunk)
3867
raise errors.OptionExpansionLoop(string, _refs)
3869
value = self._expand_option(name, env, _refs)
3871
raise errors.ExpandingUnknownOption(name, string)
3872
chunks.append(value)
3874
result = ''.join(chunks)
3877
def _expand_option(self, name, env, _refs):
3878
if env is not None and name in env:
3879
# Special case, values provided in env takes precedence over
3883
value = self.get(name, expand=False, convert=False)
3884
value = self._expand_options_in_string(value, env, _refs)
3887
def _get_mutable_section(self):
3888
"""Get the MutableSection for the Stack.
3890
This is where we guarantee that the mutable section is lazily loaded:
3891
this means we won't load the corresponding store before setting a value
3892
or deleting an option. In practice the store will often be loaded but
3893
this helps catching some programming errors.
3896
section = store.get_mutable_section(self.mutable_section_id)
3897
return store, section
3899
def set(self, name, value):
3900
"""Set a new value for the option."""
3901
store, section = self._get_mutable_section()
3902
section.set(name, store.quote(value))
3903
for hook in ConfigHooks['set']:
3904
hook(self, name, value)
3906
def remove(self, name):
3907
"""Remove an existing option."""
3908
_, section = self._get_mutable_section()
3909
section.remove(name)
3910
for hook in ConfigHooks['remove']:
3914
# Mostly for debugging use
3915
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3917
def _get_overrides(self):
3918
# FIXME: Hack around library_state.initialize never called
3919
if breezy.global_state is not None:
3920
return breezy.global_state.cmdline_overrides.get_sections()
3923
def get_shared_store(self, store, state=None):
3924
"""Get a known shared store.
3926
Store urls uniquely identify them and are used to ensure a single copy
3927
is shared across all users.
3929
:param store: The store known to the caller.
3931
:param state: The library state where the known stores are kept.
3933
:returns: The store received if it's not a known one, an already known
3937
state = breezy.global_state
3939
global _shared_stores_at_exit_installed
3940
stores = _shared_stores
3941
def save_config_changes():
3942
for k, store in stores.items():
3943
store.save_changes()
3944
if not _shared_stores_at_exit_installed:
3945
# FIXME: Ugly hack waiting for library_state to always be
3946
# available. -- vila 20120731
3948
atexit.register(save_config_changes)
3949
_shared_stores_at_exit_installed = True
3951
stores = state.config_stores
3952
url = store.external_url()
3960
class MemoryStack(Stack):
3961
"""A configuration stack defined from a string.
3963
This is mainly intended for tests and requires no disk resources.
3966
def __init__(self, content=None):
3967
"""Create an in-memory stack from a given content.
3969
It uses a single store based on configobj and support reading and
3972
:param content: The initial content of the store. If None, the store is
3973
not loaded and ``_load_from_string`` can and should be used if
3976
store = IniFileStore()
3977
if content is not None:
3978
store._load_from_string(content)
3979
super(MemoryStack, self).__init__(
3980
[store.get_sections], store)
3983
class _CompatibleStack(Stack):
3984
"""Place holder for compatibility with previous design.
3986
This is intended to ease the transition from the Config-based design to the
3987
Stack-based design and should not be used nor relied upon by plugins.
3989
One assumption made here is that the daughter classes will all use Stores
3990
derived from LockableIniFileStore).
3992
It implements set() and remove () by re-loading the store before applying
3993
the modification and saving it.
3995
The long term plan being to implement a single write by store to save
3996
all modifications, this class should not be used in the interim.
3999
def set(self, name, value):
4002
super(_CompatibleStack, self).set(name, value)
4003
# Force a write to persistent storage
4006
def remove(self, name):
4009
super(_CompatibleStack, self).remove(name)
4010
# Force a write to persistent storage
4014
class GlobalStack(Stack):
4015
"""Global options only stack.
4017
The following sections are queried:
4019
* command-line overrides,
4021
* the 'DEFAULT' section in bazaar.conf
4023
This stack will use the ``DEFAULT`` section in bazaar.conf as its
4028
gstore = self.get_shared_store(GlobalStore())
4029
super(GlobalStack, self).__init__(
4030
[self._get_overrides,
4031
NameMatcher(gstore, 'DEFAULT').get_sections],
4032
gstore, mutable_section_id='DEFAULT')
4035
class LocationStack(Stack):
4036
"""Per-location options falling back to global options stack.
4039
The following sections are queried:
4041
* command-line overrides,
4043
* the sections matching ``location`` in ``locations.conf``, the order being
4044
defined by the number of path components in the section glob, higher
4045
numbers first (from most specific section to most generic).
4047
* the 'DEFAULT' section in bazaar.conf
4049
This stack will use the ``location`` section in locations.conf as its
4053
def __init__(self, location):
4054
"""Make a new stack for a location and global configuration.
4056
:param location: A URL prefix to """
4057
lstore = self.get_shared_store(LocationStore())
4058
if location.startswith('file://'):
4059
location = urlutils.local_path_from_url(location)
4060
gstore = self.get_shared_store(GlobalStore())
4061
super(LocationStack, self).__init__(
4062
[self._get_overrides,
4063
LocationMatcher(lstore, location).get_sections,
4064
NameMatcher(gstore, 'DEFAULT').get_sections],
4065
lstore, mutable_section_id=location)
4068
class BranchStack(Stack):
4069
"""Per-location options falling back to branch then global options stack.
4071
The following sections are queried:
4073
* command-line overrides,
4075
* the sections matching ``location`` in ``locations.conf``, the order being
4076
defined by the number of path components in the section glob, higher
4077
numbers first (from most specific section to most generic),
4079
* the no-name section in branch.conf,
4081
* the ``DEFAULT`` section in ``bazaar.conf``.
4083
This stack will use the no-name section in ``branch.conf`` as its
4087
def __init__(self, branch):
4088
lstore = self.get_shared_store(LocationStore())
4089
bstore = branch._get_config_store()
4090
gstore = self.get_shared_store(GlobalStore())
4091
super(BranchStack, self).__init__(
4092
[self._get_overrides,
4093
LocationMatcher(lstore, branch.base).get_sections,
4094
NameMatcher(bstore, None).get_sections,
4095
NameMatcher(gstore, 'DEFAULT').get_sections],
4097
self.branch = branch
4099
def lock_write(self, token=None):
4100
return self.branch.lock_write(token)
4103
return self.branch.unlock()
4106
def set(self, name, value):
4107
super(BranchStack, self).set(name, value)
4108
# Unlocking the branch will trigger a store.save_changes() so the last
4109
# unlock saves all the changes.
4112
def remove(self, name):
4113
super(BranchStack, self).remove(name)
4114
# Unlocking the branch will trigger a store.save_changes() so the last
4115
# unlock saves all the changes.
4118
class RemoteControlStack(Stack):
4119
"""Remote control-only options stack."""
4121
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
4122
# with the stack used for remote bzr dirs. RemoteControlStack only uses
4123
# control.conf and is used only for stack options.
4125
def __init__(self, bzrdir):
4126
cstore = bzrdir._get_config_store()
4127
super(RemoteControlStack, self).__init__(
4128
[NameMatcher(cstore, None).get_sections],
4130
self.bzrdir = bzrdir
4133
class BranchOnlyStack(Stack):
4134
"""Branch-only options stack."""
4136
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4137
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4138
# -- vila 2011-12-16
4140
def __init__(self, branch):
4141
bstore = branch._get_config_store()
4142
super(BranchOnlyStack, self).__init__(
4143
[NameMatcher(bstore, None).get_sections],
4145
self.branch = branch
4147
def lock_write(self, token=None):
4148
return self.branch.lock_write(token)
4151
return self.branch.unlock()
4154
def set(self, name, value):
4155
super(BranchOnlyStack, self).set(name, value)
4156
# Force a write to persistent storage
4157
self.store.save_changes()
4160
def remove(self, name):
4161
super(BranchOnlyStack, self).remove(name)
4162
# Force a write to persistent storage
4163
self.store.save_changes()
4166
class cmd_config(commands.Command):
4167
__doc__ = """Display, set or remove a configuration option.
4169
Display the active value for option NAME.
4171
If --all is specified, NAME is interpreted as a regular expression and all
4172
matching options are displayed mentioning their scope and without resolving
4173
option references in the value). The active value that bzr will take into
4174
account is the first one displayed for each option.
4176
If NAME is not given, --all .* is implied (all options are displayed for the
4179
Setting a value is achieved by using NAME=value without spaces. The value
4180
is set in the most relevant scope and can be checked by displaying the
4183
Removing a value is achieved by using --remove NAME.
4186
takes_args = ['name?']
4190
# FIXME: This should be a registry option so that plugins can register
4191
# their own config files (or not) and will also address
4192
# http://pad.lv/788991 -- vila 20101115
4193
commands.Option('scope', help='Reduce the scope to the specified'
4194
' configuration file.',
4196
commands.Option('all',
4197
help='Display all the defined values for the matching options.',
4199
commands.Option('remove', help='Remove the option from'
4200
' the configuration file.'),
4203
_see_also = ['configuration']
4205
@commands.display_command
4206
def run(self, name=None, all=False, directory=None, scope=None,
4208
if directory is None:
4210
directory = directory_service.directories.dereference(directory)
4211
directory = urlutils.normalize_url(directory)
4213
raise errors.BzrError(
4214
'--all and --remove are mutually exclusive.')
4216
# Delete the option in the given scope
4217
self._remove_config_option(name, directory, scope)
4219
# Defaults to all options
4220
self._show_matching_options('.*', directory, scope)
4223
name, value = name.split('=', 1)
4225
# Display the option(s) value(s)
4227
self._show_matching_options(name, directory, scope)
4229
self._show_value(name, directory, scope)
4232
raise errors.BzrError(
4233
'Only one option can be set.')
4234
# Set the option value
4235
self._set_config_option(name, value, directory, scope)
4237
def _get_stack(self, directory, scope=None, write_access=False):
4238
"""Get the configuration stack specified by ``directory`` and ``scope``.
4240
:param directory: Where the configurations are derived from.
4242
:param scope: A specific config to start from.
4244
:param write_access: Whether a write access to the stack will be
4247
# FIXME: scope should allow access to plugin-specific stacks (even
4248
# reduced to the plugin-specific store), related to
4249
# http://pad.lv/788991 -- vila 2011-11-15
4250
if scope is not None:
4251
if scope == 'bazaar':
4252
return GlobalStack()
4253
elif scope == 'locations':
4254
return LocationStack(directory)
4255
elif scope == 'branch':
4257
controldir.ControlDir.open_containing_tree_or_branch(
4260
self.add_cleanup(br.lock_write().unlock)
4261
return br.get_config_stack()
4262
raise errors.NoSuchConfig(scope)
4266
controldir.ControlDir.open_containing_tree_or_branch(
4269
self.add_cleanup(br.lock_write().unlock)
4270
return br.get_config_stack()
4271
except errors.NotBranchError:
4272
return LocationStack(directory)
4274
def _quote_multiline(self, value):
4276
value = '"""' + value + '"""'
4279
def _show_value(self, name, directory, scope):
4280
conf = self._get_stack(directory, scope)
4281
value = conf.get(name, expand=True, convert=False)
4282
if value is not None:
4283
# Quote the value appropriately
4284
value = self._quote_multiline(value)
4285
self.outf.write('%s\n' % (value,))
4287
raise errors.NoSuchConfigOption(name)
4289
def _show_matching_options(self, name, directory, scope):
4290
name = lazy_regex.lazy_compile(name)
4291
# We want any error in the regexp to be raised *now* so we need to
4292
# avoid the delay introduced by the lazy regexp. But, we still do
4293
# want the nicer errors raised by lazy_regex.
4294
name._compile_and_collapse()
4297
conf = self._get_stack(directory, scope)
4298
for store, section in conf.iter_sections():
4299
for oname in section.iter_option_names():
4300
if name.search(oname):
4301
if cur_store_id != store.id:
4302
# Explain where the options are defined
4303
self.outf.write('%s:\n' % (store.id,))
4304
cur_store_id = store.id
4306
if (section.id is not None and cur_section != section.id):
4307
# Display the section id as it appears in the store
4308
# (None doesn't appear by definition)
4309
self.outf.write(' [%s]\n' % (section.id,))
4310
cur_section = section.id
4311
value = section.get(oname, expand=False)
4312
# Quote the value appropriately
4313
value = self._quote_multiline(value)
4314
self.outf.write(' %s = %s\n' % (oname, value))
4316
def _set_config_option(self, name, value, directory, scope):
4317
conf = self._get_stack(directory, scope, write_access=True)
4318
conf.set(name, value)
4319
# Explicitly save the changes
4320
conf.store.save_changes()
4322
def _remove_config_option(self, name, directory, scope):
4324
raise errors.BzrCommandError(
4325
'--remove expects an option to remove.')
4326
conf = self._get_stack(directory, scope, write_access=True)
4329
# Explicitly save the changes
4330
conf.store.save_changes()
4332
raise errors.NoSuchConfigOption(name)
4337
# We need adapters that can build a Store or a Stack in a test context. Test
4338
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4339
# themselves. The builder will receive a test instance and should return a
4340
# ready-to-use store or stack. Plugins that define new store/stacks can also
4341
# register themselves here to be tested against the tests defined in
4342
# breezy.tests.test_config. Note that the builder can be called multiple times
4343
# for the same test.
4345
# The registered object should be a callable receiving a test instance
4346
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4348
test_store_builder_registry = registry.Registry()
4350
# The registered object should be a callable receiving a test instance
4351
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4353
test_stack_builder_registry = registry.Registry()