1508
2165
configobj[name] = value
1510
2167
configobj.setdefault(section, {})[name] = value
2168
for hook in OldConfigHooks['set']:
2169
hook(self, name, value)
2170
self._set_configobj(configobj)
2172
def remove_option(self, option_name, section_name=None):
2173
configobj = self._get_configobj()
2174
if section_name is None:
2175
del configobj[option_name]
2177
del configobj[section_name][option_name]
2178
for hook in OldConfigHooks['remove']:
2179
hook(self, option_name)
1511
2180
self._set_configobj(configobj)
1513
2182
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2184
f = BytesIO(self._transport.get_bytes(self._filename))
2185
for hook in OldConfigHooks['load']:
1516
2188
except errors.NoSuchFile:
2190
except errors.PermissionDenied as e:
2191
trace.warning("Permission denied while trying to open "
2192
"configuration file %s.", urlutils.unescape_for_display(
2193
urlutils.join(self._transport.base, self._filename), "utf-8"))
2196
def _external_url(self):
2197
return urlutils.join(self._transport.external_url(), self._filename)
1519
2199
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2200
f = self._get_config_file()
2203
conf = ConfigObj(f, encoding='utf-8')
2204
except configobj.ConfigObjError as e:
2205
raise errors.ParseConfigError(e.errors, self._external_url())
2206
except UnicodeDecodeError:
2207
raise errors.ConfigContentError(self._external_url())
1522
2212
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2213
out_file = BytesIO()
1524
2214
configobj.write(out_file)
1525
2215
out_file.seek(0)
1526
2216
self._transport.put_file(self._filename, out_file)
2217
for hook in OldConfigHooks['save']:
2221
class Option(object):
2222
"""An option definition.
2224
The option *values* are stored in config files and found in sections.
2226
Here we define various properties about the option itself, its default
2227
value, how to convert it from stores, what to do when invalid values are
2228
encoutered, in which config files it can be stored.
2231
def __init__(self, name, override_from_env=None,
2232
default=None, default_from_env=None,
2233
help=None, from_unicode=None, invalid=None, unquote=True):
2234
"""Build an option definition.
2236
:param name: the name used to refer to the option.
2238
:param override_from_env: A list of environment variables which can
2239
provide override any configuration setting.
2241
:param default: the default value to use when none exist in the config
2242
stores. This is either a string that ``from_unicode`` will convert
2243
into the proper type, a callable returning a unicode string so that
2244
``from_unicode`` can be used on the return value, or a python
2245
object that can be stringified (so only the empty list is supported
2248
:param default_from_env: A list of environment variables which can
2249
provide a default value. 'default' will be used only if none of the
2250
variables specified here are set in the environment.
2252
:param help: a doc string to explain the option to the user.
2254
:param from_unicode: a callable to convert the unicode string
2255
representing the option value in a store or its default value.
2257
:param invalid: the action to be taken when an invalid value is
2258
encountered in a store. This is called only when from_unicode is
2259
invoked to convert a string and returns None or raise ValueError or
2260
TypeError. Accepted values are: None (ignore invalid values),
2261
'warning' (emit a warning), 'error' (emit an error message and
2264
:param unquote: should the unicode value be unquoted before conversion.
2265
This should be used only when the store providing the values cannot
2266
safely unquote them (see http://pad.lv/906897). It is provided so
2267
daughter classes can handle the quoting themselves.
2269
if override_from_env is None:
2270
override_from_env = []
2271
if default_from_env is None:
2272
default_from_env = []
2274
self.override_from_env = override_from_env
2275
# Convert the default value to a unicode string so all values are
2276
# strings internally before conversion (via from_unicode) is attempted.
2279
elif isinstance(default, list):
2280
# Only the empty list is supported
2282
raise AssertionError(
2283
'Only empty lists are supported as default values')
2285
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2286
# Rely on python to convert strings, booleans and integers
2287
self.default = u'%s' % (default,)
2288
elif callable(default):
2289
self.default = default
2291
# other python objects are not expected
2292
raise AssertionError('%r is not supported as a default value'
2294
self.default_from_env = default_from_env
2296
self.from_unicode = from_unicode
2297
self.unquote = unquote
2298
if invalid and invalid not in ('warning', 'error'):
2299
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2300
self.invalid = invalid
2306
def convert_from_unicode(self, store, unicode_value):
2307
if self.unquote and store is not None and unicode_value is not None:
2308
unicode_value = store.unquote(unicode_value)
2309
if self.from_unicode is None or unicode_value is None:
2310
# Don't convert or nothing to convert
2311
return unicode_value
2313
converted = self.from_unicode(unicode_value)
2314
except (ValueError, TypeError):
2315
# Invalid values are ignored
2317
if converted is None and self.invalid is not None:
2318
# The conversion failed
2319
if self.invalid == 'warning':
2320
trace.warning('Value "%s" is not valid for "%s"',
2321
unicode_value, self.name)
2322
elif self.invalid == 'error':
2323
raise errors.ConfigOptionValueError(self.name, unicode_value)
2326
def get_override(self):
2328
for var in self.override_from_env:
2330
# If the env variable is defined, its value takes precedence
2331
value = os.environ[var].decode(osutils.get_user_encoding())
2337
def get_default(self):
2339
for var in self.default_from_env:
2341
# If the env variable is defined, its value is the default one
2342
value = os.environ[var]
2344
value = value.decode(osutils.get_user_encoding())
2349
# Otherwise, fallback to the value defined at registration
2350
if callable(self.default):
2351
value = self.default()
2352
if not isinstance(value, text_type):
2353
raise AssertionError(
2354
"Callable default value for '%s' should be unicode"
2357
value = self.default
2360
def get_help_topic(self):
2363
def get_help_text(self, additional_see_also=None, plain=True):
2365
from breezy import help_topics
2366
result += help_topics._format_see_also(additional_see_also)
2368
result = help_topics.help_as_plain_text(result)
2372
# Predefined converters to get proper values from store
2374
def bool_from_store(unicode_str):
2375
return ui.bool_from_string(unicode_str)
2378
def int_from_store(unicode_str):
2379
return int(unicode_str)
2382
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2384
def int_SI_from_store(unicode_str):
2385
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2387
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2388
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2391
:return Integer, expanded to its base-10 value if a proper SI unit is
2392
found, None otherwise.
2394
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2395
p = re.compile(regexp, re.IGNORECASE)
2396
m = p.match(unicode_str)
2399
val, _, unit = m.groups()
2403
coeff = _unit_suffixes[unit.upper()]
2405
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2410
def float_from_store(unicode_str):
2411
return float(unicode_str)
2414
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2416
_list_converter_config = configobj.ConfigObj(
2417
{}, encoding='utf-8', list_values=True, interpolation=False)
2420
class ListOption(Option):
2422
def __init__(self, name, default=None, default_from_env=None,
2423
help=None, invalid=None):
2424
"""A list Option definition.
2426
This overrides the base class so the conversion from a unicode string
2427
can take quoting into account.
2429
super(ListOption, self).__init__(
2430
name, default=default, default_from_env=default_from_env,
2431
from_unicode=self.from_unicode, help=help,
2432
invalid=invalid, unquote=False)
2434
def from_unicode(self, unicode_str):
2435
if not isinstance(unicode_str, string_types):
2437
# Now inject our string directly as unicode. All callers got their
2438
# value from configobj, so values that need to be quoted are already
2440
_list_converter_config.reset()
2441
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2442
maybe_list = _list_converter_config['list']
2443
if isinstance(maybe_list, string_types):
2445
# A single value, most probably the user forgot (or didn't care
2446
# to add) the final ','
2449
# The empty string, convert to empty list
2452
# We rely on ConfigObj providing us with a list already
2457
class RegistryOption(Option):
2458
"""Option for a choice from a registry."""
2460
def __init__(self, name, registry, default_from_env=None,
2461
help=None, invalid=None):
2462
"""A registry based Option definition.
2464
This overrides the base class so the conversion from a unicode string
2465
can take quoting into account.
2467
super(RegistryOption, self).__init__(
2468
name, default=lambda: unicode(registry.default_key),
2469
default_from_env=default_from_env,
2470
from_unicode=self.from_unicode, help=help,
2471
invalid=invalid, unquote=False)
2472
self.registry = registry
2474
def from_unicode(self, unicode_str):
2475
if not isinstance(unicode_str, string_types):
2478
return self.registry.get(unicode_str)
2481
"Invalid value %s for %s."
2482
"See help for a list of possible values." % (unicode_str,
2487
ret = [self._help, "\n\nThe following values are supported:\n"]
2488
for key in self.registry.keys():
2489
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2493
_option_ref_re = lazy_regex.lazy_compile('({[^\d\W](?:\.\w|-\w|\w)*})')
2494
"""Describes an expandable option reference.
2496
We want to match the most embedded reference first.
2498
I.e. for '{{foo}}' we will get '{foo}',
2499
for '{bar{baz}}' we will get '{baz}'
2502
def iter_option_refs(string):
2503
# Split isolate refs so every other chunk is a ref
2505
for chunk in _option_ref_re.split(string):
2510
class OptionRegistry(registry.Registry):
2511
"""Register config options by their name.
2513
This overrides ``registry.Registry`` to simplify registration by acquiring
2514
some information from the option object itself.
2517
def _check_option_name(self, option_name):
2518
"""Ensures an option name is valid.
2520
:param option_name: The name to validate.
2522
if _option_ref_re.match('{%s}' % option_name) is None:
2523
raise errors.IllegalOptionName(option_name)
2525
def register(self, option):
2526
"""Register a new option to its name.
2528
:param option: The option to register. Its name is used as the key.
2530
self._check_option_name(option.name)
2531
super(OptionRegistry, self).register(option.name, option,
2534
def register_lazy(self, key, module_name, member_name):
2535
"""Register a new option to be loaded on request.
2537
:param key: the key to request the option later. Since the registration
2538
is lazy, it should be provided and match the option name.
2540
:param module_name: the python path to the module. Such as 'os.path'.
2542
:param member_name: the member of the module to return. If empty or
2543
None, get() will return the module itself.
2545
self._check_option_name(key)
2546
super(OptionRegistry, self).register_lazy(key,
2547
module_name, member_name)
2549
def get_help(self, key=None):
2550
"""Get the help text associated with the given key"""
2551
option = self.get(key)
2552
the_help = option.help
2553
if callable(the_help):
2554
return the_help(self, key)
2558
option_registry = OptionRegistry()
2561
# Registered options in lexicographical order
2563
option_registry.register(
2564
Option('append_revisions_only',
2565
default=None, from_unicode=bool_from_store, invalid='warning',
2567
Whether to only append revisions to the mainline.
2569
If this is set to true, then it is not possible to change the
2570
existing mainline of the branch.
2572
option_registry.register(
2573
ListOption('acceptable_keys',
2576
List of GPG key patterns which are acceptable for verification.
2578
option_registry.register(
2579
Option('add.maximum_file_size',
2580
default=u'20MB', from_unicode=int_SI_from_store,
2582
Size above which files should be added manually.
2584
Files below this size are added automatically when using ``bzr add`` without
2587
A negative value means disable the size check.
2589
option_registry.register(
2591
default=None, from_unicode=bool_from_store,
2593
Is the branch bound to ``bound_location``.
2595
If set to "True", the branch should act as a checkout, and push each commit to
2596
the bound_location. This option is normally set by ``bind``/``unbind``.
2598
See also: bound_location.
2600
option_registry.register(
2601
Option('bound_location',
2604
The location that commits should go to when acting as a checkout.
2606
This option is normally set by ``bind``.
2610
option_registry.register(
2611
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2613
Whether revisions associated with tags should be fetched.
2615
option_registry.register_lazy(
2616
'bzr.transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2617
option_registry.register(
2618
Option('bzr.workingtree.worth_saving_limit', default=10,
2619
from_unicode=int_from_store, invalid='warning',
2621
How many changes before saving the dirstate.
2623
-1 means that we will never rewrite the dirstate file for only
2624
stat-cache changes. Regardless of this setting, we will always rewrite
2625
the dirstate file if a file is added/removed/renamed/etc. This flag only
2626
affects the behavior of updating the dirstate file after we notice that
2627
a file has been touched.
2629
option_registry.register(
2630
Option('bugtracker', default=None,
2632
Default bug tracker to use.
2634
This bug tracker will be used for example when marking bugs
2635
as fixed using ``bzr commit --fixes``, if no explicit
2636
bug tracker was specified.
2638
option_registry.register(
2639
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2640
from_unicode=signature_policy_from_unicode,
2642
GPG checking policy.
2644
Possible values: require, ignore, check-available (default)
2646
this option will control whether bzr will require good gpg
2647
signatures, ignore them, or check them if they are
2650
option_registry.register(
2651
Option('child_submit_format',
2652
help='''The preferred format of submissions to this branch.'''))
2653
option_registry.register(
2654
Option('child_submit_to',
2655
help='''Where submissions to this branch are mailed to.'''))
2656
option_registry.register(
2657
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2658
from_unicode=signing_policy_from_unicode,
2662
Possible values: always, never, when-required (default)
2664
This option controls whether bzr will always create
2665
gpg signatures or not on commits.
2667
option_registry.register(
2668
Option('dirstate.fdatasync', default=True,
2669
from_unicode=bool_from_store,
2671
Flush dirstate changes onto physical disk?
2673
If true (default), working tree metadata changes are flushed through the
2674
OS buffers to physical disk. This is somewhat slower, but means data
2675
should not be lost if the machine crashes. See also repository.fdatasync.
2677
option_registry.register(
2678
ListOption('debug_flags', default=[],
2679
help='Debug flags to activate.'))
2680
option_registry.register(
2681
Option('default_format', default='2a',
2682
help='Format used when creating branches.'))
2683
option_registry.register(
2684
Option('dpush_strict', default=None,
2685
from_unicode=bool_from_store,
2687
The default value for ``dpush --strict``.
2689
If present, defines the ``--strict`` option default value for checking
2690
uncommitted changes before pushing into a different VCS without any
2691
custom bzr metadata.
2693
option_registry.register(
2695
help='The command called to launch an editor to enter a message.'))
2696
option_registry.register(
2697
Option('email', override_from_env=['BRZ_EMAIL'], default=default_email,
2698
help='The users identity'))
2699
option_registry.register(
2700
Option('gpg_signing_key',
2703
GPG key to use for signing.
2705
This defaults to the first key associated with the users email.
2707
option_registry.register(
2709
help='Language to translate messages into.'))
2710
option_registry.register(
2711
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2713
Steal locks that appears to be dead.
2715
If set to True, bzr will check if a lock is supposed to be held by an
2716
active process from the same user on the same machine. If the user and
2717
machine match, but no process with the given PID is active, then bzr
2718
will automatically break the stale lock, and create a new lock for
2720
Otherwise, bzr will prompt as normal to break the lock.
2722
option_registry.register(
2723
Option('log_format', default='long',
2725
Log format to use when displaying revisions.
2727
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2728
may be provided by plugins.
2730
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2732
option_registry.register(
2733
Option('output_encoding',
2734
help= 'Unicode encoding for output'
2735
' (terminal encoding if not specified).'))
2736
option_registry.register(
2737
Option('parent_location',
2740
The location of the default branch for pull or merge.
2742
This option is normally set when creating a branch, the first ``pull`` or by
2743
``pull --remember``.
2745
option_registry.register(
2746
Option('post_commit', default=None,
2748
Post commit functions.
2750
An ordered list of python functions to call, separated by spaces.
2752
Each function takes branch, rev_id as parameters.
2754
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2756
option_registry.register(
2757
Option('public_branch',
2760
A publically-accessible version of this branch.
2762
This implies that the branch setting this option is not publically-accessible.
2763
Used and set by ``bzr send``.
2765
option_registry.register(
2766
Option('push_location',
2769
The location of the default branch for push.
2771
This option is normally set by the first ``push`` or ``push --remember``.
2773
option_registry.register(
2774
Option('push_strict', default=None,
2775
from_unicode=bool_from_store,
2777
The default value for ``push --strict``.
2779
If present, defines the ``--strict`` option default value for checking
2780
uncommitted changes before sending a merge directive.
2782
option_registry.register(
2783
Option('repository.fdatasync', default=True,
2784
from_unicode=bool_from_store,
2786
Flush repository changes onto physical disk?
2788
If true (default), repository changes are flushed through the OS buffers
2789
to physical disk. This is somewhat slower, but means data should not be
2790
lost if the machine crashes. See also dirstate.fdatasync.
2792
option_registry.register_lazy('smtp_server',
2793
'breezy.smtp_connection', 'smtp_server')
2794
option_registry.register_lazy('smtp_password',
2795
'breezy.smtp_connection', 'smtp_password')
2796
option_registry.register_lazy('smtp_username',
2797
'breezy.smtp_connection', 'smtp_username')
2798
option_registry.register(
2799
Option('selftest.timeout',
2801
from_unicode=int_from_store,
2802
help='Abort selftest if one test takes longer than this many seconds',
2805
option_registry.register(
2806
Option('send_strict', default=None,
2807
from_unicode=bool_from_store,
2809
The default value for ``send --strict``.
2811
If present, defines the ``--strict`` option default value for checking
2812
uncommitted changes before sending a bundle.
2815
option_registry.register(
2816
Option('serve.client_timeout',
2817
default=300.0, from_unicode=float_from_store,
2818
help="If we wait for a new request from a client for more than"
2819
" X seconds, consider the client idle, and hangup."))
2820
option_registry.register(
2821
Option('stacked_on_location',
2823
help="""The location where this branch is stacked on."""))
2824
option_registry.register(
2825
Option('submit_branch',
2828
The branch you intend to submit your current work to.
2830
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2831
by the ``submit:`` revision spec.
2833
option_registry.register(
2835
help='''Where submissions from this branch are mailed to.'''))
2836
option_registry.register(
2837
ListOption('suppress_warnings',
2839
help="List of warning classes to suppress."))
2840
option_registry.register(
2841
Option('validate_signatures_in_log', default=False,
2842
from_unicode=bool_from_store, invalid='warning',
2843
help='''Whether to validate signatures in brz log.'''))
2844
option_registry.register_lazy('ssl.ca_certs',
2845
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2847
option_registry.register_lazy('ssl.cert_reqs',
2848
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2851
class Section(object):
2852
"""A section defines a dict of option name => value.
2854
This is merely a read-only dict which can add some knowledge about the
2855
options. It is *not* a python dict object though and doesn't try to mimic
2859
def __init__(self, section_id, options):
2860
self.id = section_id
2861
# We re-use the dict-like object received
2862
self.options = options
2864
def get(self, name, default=None, expand=True):
2865
return self.options.get(name, default)
2867
def iter_option_names(self):
2868
for k in self.options.keys():
2872
# Mostly for debugging use
2873
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2876
_NewlyCreatedOption = object()
2877
"""Was the option created during the MutableSection lifetime"""
2878
_DeletedOption = object()
2879
"""Was the option deleted during the MutableSection lifetime"""
2882
class MutableSection(Section):
2883
"""A section allowing changes and keeping track of the original values."""
2885
def __init__(self, section_id, options):
2886
super(MutableSection, self).__init__(section_id, options)
2887
self.reset_changes()
2889
def set(self, name, value):
2890
if name not in self.options:
2891
# This is a new option
2892
self.orig[name] = _NewlyCreatedOption
2893
elif name not in self.orig:
2894
self.orig[name] = self.get(name, None)
2895
self.options[name] = value
2897
def remove(self, name):
2898
if name not in self.orig and name in self.options:
2899
self.orig[name] = self.get(name, None)
2900
del self.options[name]
2902
def reset_changes(self):
2905
def apply_changes(self, dirty, store):
2906
"""Apply option value changes.
2908
``self`` has been reloaded from the persistent storage. ``dirty``
2909
contains the changes made since the previous loading.
2911
:param dirty: the mutable section containing the changes.
2913
:param store: the store containing the section
2915
for k, expected in dirty.orig.items():
2916
actual = dirty.get(k, _DeletedOption)
2917
reloaded = self.get(k, _NewlyCreatedOption)
2918
if actual is _DeletedOption:
2919
if k in self.options:
2923
# Report concurrent updates in an ad-hoc way. This should only
2924
# occurs when different processes try to update the same option
2925
# which is not supported (as in: the config framework is not meant
2926
# to be used as a sharing mechanism).
2927
if expected != reloaded:
2928
if actual is _DeletedOption:
2929
actual = '<DELETED>'
2930
if reloaded is _NewlyCreatedOption:
2931
reloaded = '<CREATED>'
2932
if expected is _NewlyCreatedOption:
2933
expected = '<CREATED>'
2934
# Someone changed the value since we get it from the persistent
2936
trace.warning(gettext(
2937
"Option {0} in section {1} of {2} was changed"
2938
" from {3} to {4}. The {5} value will be saved.".format(
2939
k, self.id, store.external_url(), expected,
2941
# No need to keep track of these changes
2942
self.reset_changes()
2945
class Store(object):
2946
"""Abstract interface to persistent storage for configuration options."""
2948
readonly_section_class = Section
2949
mutable_section_class = MutableSection
2952
# Which sections need to be saved (by section id). We use a dict here
2953
# so the dirty sections can be shared by multiple callers.
2954
self.dirty_sections = {}
2956
def is_loaded(self):
2957
"""Returns True if the Store has been loaded.
2959
This is used to implement lazy loading and ensure the persistent
2960
storage is queried only when needed.
2962
raise NotImplementedError(self.is_loaded)
2965
"""Loads the Store from persistent storage."""
2966
raise NotImplementedError(self.load)
2968
def _load_from_string(self, bytes):
2969
"""Create a store from a string in configobj syntax.
2971
:param bytes: A string representing the file content.
2973
raise NotImplementedError(self._load_from_string)
2976
"""Unloads the Store.
2978
This should make is_loaded() return False. This is used when the caller
2979
knows that the persistent storage has changed or may have change since
2982
raise NotImplementedError(self.unload)
2984
def quote(self, value):
2985
"""Quote a configuration option value for storing purposes.
2987
This allows Stacks to present values as they will be stored.
2991
def unquote(self, value):
2992
"""Unquote a configuration option value into unicode.
2994
The received value is quoted as stored.
2999
"""Saves the Store to persistent storage."""
3000
raise NotImplementedError(self.save)
3002
def _need_saving(self):
3003
for s in self.dirty_sections.values():
3005
# At least one dirty section contains a modification
3009
def apply_changes(self, dirty_sections):
3010
"""Apply changes from dirty sections while checking for coherency.
3012
The Store content is discarded and reloaded from persistent storage to
3013
acquire up-to-date values.
3015
Dirty sections are MutableSection which kept track of the value they
3016
are expected to update.
3018
# We need an up-to-date version from the persistent storage, unload the
3019
# store. The reload will occur when needed (triggered by the first
3020
# get_mutable_section() call below.
3022
# Apply the changes from the preserved dirty sections
3023
for section_id, dirty in dirty_sections.items():
3024
clean = self.get_mutable_section(section_id)
3025
clean.apply_changes(dirty, self)
3026
# Everything is clean now
3027
self.dirty_sections = {}
3029
def save_changes(self):
3030
"""Saves the Store to persistent storage if changes occurred.
3032
Apply the changes recorded in the mutable sections to a store content
3033
refreshed from persistent storage.
3035
raise NotImplementedError(self.save_changes)
3037
def external_url(self):
3038
raise NotImplementedError(self.external_url)
3040
def get_sections(self):
3041
"""Returns an ordered iterable of existing sections.
3043
:returns: An iterable of (store, section).
3045
raise NotImplementedError(self.get_sections)
3047
def get_mutable_section(self, section_id=None):
3048
"""Returns the specified mutable section.
3050
:param section_id: The section identifier
3052
raise NotImplementedError(self.get_mutable_section)
3055
# Mostly for debugging use
3056
return "<config.%s(%s)>" % (self.__class__.__name__,
3057
self.external_url())
3060
class CommandLineStore(Store):
3061
"A store to carry command line overrides for the config options."""
3063
def __init__(self, opts=None):
3064
super(CommandLineStore, self).__init__()
3071
# The dict should be cleared but not replaced so it can be shared.
3072
self.options.clear()
3074
def _from_cmdline(self, overrides):
3075
# Reset before accepting new definitions
3077
for over in overrides:
3079
name, value = over.split('=', 1)
3081
raise errors.BzrCommandError(
3082
gettext("Invalid '%s', should be of the form 'name=value'")
3084
self.options[name] = value
3086
def external_url(self):
3087
# Not an url but it makes debugging easier and is never needed
3091
def get_sections(self):
3092
yield self, self.readonly_section_class(None, self.options)
3095
class IniFileStore(Store):
3096
"""A config Store using ConfigObj for storage.
3098
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3099
serialize/deserialize the config file.
3103
"""A config Store using ConfigObj for storage.
3105
super(IniFileStore, self).__init__()
3106
self._config_obj = None
3108
def is_loaded(self):
3109
return self._config_obj != None
3112
self._config_obj = None
3113
self.dirty_sections = {}
3115
def _load_content(self):
3116
"""Load the config file bytes.
3118
This should be provided by subclasses
3120
:return: Byte string
3122
raise NotImplementedError(self._load_content)
3124
def _save_content(self, content):
3125
"""Save the config file bytes.
3127
This should be provided by subclasses
3129
:param content: Config file bytes to write
3131
raise NotImplementedError(self._save_content)
3134
"""Load the store from the associated file."""
3135
if self.is_loaded():
3137
content = self._load_content()
3138
self._load_from_string(content)
3139
for hook in ConfigHooks['load']:
3142
def _load_from_string(self, bytes):
3143
"""Create a config store from a string.
3145
:param bytes: A string representing the file content.
3147
if self.is_loaded():
3148
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3149
co_input = BytesIO(bytes)
3151
# The config files are always stored utf8-encoded
3152
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3154
except configobj.ConfigObjError as e:
3155
self._config_obj = None
3156
raise errors.ParseConfigError(e.errors, self.external_url())
3157
except UnicodeDecodeError:
3158
raise errors.ConfigContentError(self.external_url())
3160
def save_changes(self):
3161
if not self.is_loaded():
3164
if not self._need_saving():
3166
# Preserve the current version
3167
dirty_sections = self.dirty_sections.copy()
3168
self.apply_changes(dirty_sections)
3169
# Save to the persistent storage
3173
if not self.is_loaded():
3177
self._config_obj.write(out)
3178
self._save_content(out.getvalue())
3179
for hook in ConfigHooks['save']:
3182
def get_sections(self):
3183
"""Get the configobj section in the file order.
3185
:returns: An iterable of (store, section).
3187
# We need a loaded store
3190
except (errors.NoSuchFile, errors.PermissionDenied):
3191
# If the file can't be read, there is no sections
3193
cobj = self._config_obj
3195
yield self, self.readonly_section_class(None, cobj)
3196
for section_name in cobj.sections:
3198
self.readonly_section_class(section_name,
3199
cobj[section_name]))
3201
def get_mutable_section(self, section_id=None):
3202
# We need a loaded store
3205
except errors.NoSuchFile:
3206
# The file doesn't exist, let's pretend it was empty
3207
self._load_from_string(b'')
3208
if section_id in self.dirty_sections:
3209
# We already created a mutable section for this id
3210
return self.dirty_sections[section_id]
3211
if section_id is None:
3212
section = self._config_obj
3214
section = self._config_obj.setdefault(section_id, {})
3215
mutable_section = self.mutable_section_class(section_id, section)
3216
# All mutable sections can become dirty
3217
self.dirty_sections[section_id] = mutable_section
3218
return mutable_section
3220
def quote(self, value):
3222
# configobj conflates automagical list values and quoting
3223
self._config_obj.list_values = True
3224
return self._config_obj._quote(value)
3226
self._config_obj.list_values = False
3228
def unquote(self, value):
3229
if value and isinstance(value, string_types):
3230
# _unquote doesn't handle None nor empty strings nor anything that
3231
# is not a string, really.
3232
value = self._config_obj._unquote(value)
3235
def external_url(self):
3236
# Since an IniFileStore can be used without a file (at least in tests),
3237
# it's better to provide something than raising a NotImplementedError.
3238
# All daughter classes are supposed to provide an implementation
3240
return 'In-Process Store, no URL'
3243
class TransportIniFileStore(IniFileStore):
3244
"""IniFileStore that loads files from a transport.
3246
:ivar transport: The transport object where the config file is located.
3248
:ivar file_name: The config file basename in the transport directory.
3251
def __init__(self, transport, file_name):
3252
"""A Store using a ini file on a Transport
3254
:param transport: The transport object where the config file is located.
3255
:param file_name: The config file basename in the transport directory.
3257
super(TransportIniFileStore, self).__init__()
3258
self.transport = transport
3259
self.file_name = file_name
3261
def _load_content(self):
3263
return self.transport.get_bytes(self.file_name)
3264
except errors.PermissionDenied:
3265
trace.warning("Permission denied while trying to load "
3266
"configuration store %s.", self.external_url())
3269
def _save_content(self, content):
3270
self.transport.put_bytes(self.file_name, content)
3272
def external_url(self):
3273
# FIXME: external_url should really accepts an optional relpath
3274
# parameter (bug #750169) :-/ -- vila 2011-04-04
3275
# The following will do in the interim but maybe we don't want to
3276
# expose a path here but rather a config ID and its associated
3277
# object </hand wawe>.
3278
return urlutils.join(
3279
self.transport.external_url(), urlutils.escape(self.file_name))
3282
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3283
# unlockable stores for use with objects that can already ensure the locking
3284
# (think branches). If different stores (not based on ConfigObj) are created,
3285
# they may face the same issue.
3288
class LockableIniFileStore(TransportIniFileStore):
3289
"""A ConfigObjStore using locks on save to ensure store integrity."""
3291
def __init__(self, transport, file_name, lock_dir_name=None):
3292
"""A config Store using ConfigObj for storage.
3294
:param transport: The transport object where the config file is located.
3296
:param file_name: The config file basename in the transport directory.
3298
if lock_dir_name is None:
3299
lock_dir_name = 'lock'
3300
self.lock_dir_name = lock_dir_name
3301
super(LockableIniFileStore, self).__init__(transport, file_name)
3302
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3304
def lock_write(self, token=None):
3305
"""Takes a write lock in the directory containing the config file.
3307
If the directory doesn't exist it is created.
3309
# FIXME: This doesn't check the ownership of the created directories as
3310
# ensure_config_dir_exists does. It should if the transport is local
3311
# -- vila 2011-04-06
3312
self.transport.create_prefix()
3313
return self._lock.lock_write(token)
3318
def break_lock(self):
3319
self._lock.break_lock()
3323
# We need to be able to override the undecorated implementation
3324
self.save_without_locking()
3326
def save_without_locking(self):
3327
super(LockableIniFileStore, self).save()
3330
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3331
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3332
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3334
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3335
# functions or a registry will make it easier and clearer for tests, focusing
3336
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3337
# on a poolie's remark)
3338
class GlobalStore(LockableIniFileStore):
3339
"""A config store for global options.
3341
There is a single GlobalStore for a given process.
3344
def __init__(self, possible_transports=None):
3345
t = transport.get_transport_from_path(
3346
config_dir(), possible_transports=possible_transports)
3347
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3351
class LocationStore(LockableIniFileStore):
3352
"""A config store for options specific to a location.
3354
There is a single LocationStore for a given process.
3357
def __init__(self, possible_transports=None):
3358
t = transport.get_transport_from_path(
3359
config_dir(), possible_transports=possible_transports)
3360
super(LocationStore, self).__init__(t, 'locations.conf')
3361
self.id = 'locations'
3364
class BranchStore(TransportIniFileStore):
3365
"""A config store for branch options.
3367
There is a single BranchStore for a given branch.
3370
def __init__(self, branch):
3371
super(BranchStore, self).__init__(branch.control_transport,
3373
self.branch = branch
3377
class ControlStore(LockableIniFileStore):
3379
def __init__(self, bzrdir):
3380
super(ControlStore, self).__init__(bzrdir.transport,
3382
lock_dir_name='branch_lock')
3386
class SectionMatcher(object):
3387
"""Select sections into a given Store.
3389
This is intended to be used to postpone getting an iterable of sections
3393
def __init__(self, store):
3396
def get_sections(self):
3397
# This is where we require loading the store so we can see all defined
3399
sections = self.store.get_sections()
3400
# Walk the revisions in the order provided
3401
for store, s in sections:
3405
def match(self, section):
3406
"""Does the proposed section match.
3408
:param section: A Section object.
3410
:returns: True if the section matches, False otherwise.
3412
raise NotImplementedError(self.match)
3415
class NameMatcher(SectionMatcher):
3417
def __init__(self, store, section_id):
3418
super(NameMatcher, self).__init__(store)
3419
self.section_id = section_id
3421
def match(self, section):
3422
return section.id == self.section_id
3425
class LocationSection(Section):
3427
def __init__(self, section, extra_path, branch_name=None):
3428
super(LocationSection, self).__init__(section.id, section.options)
3429
self.extra_path = extra_path
3430
if branch_name is None:
3432
self.locals = {'relpath': extra_path,
3433
'basename': urlutils.basename(extra_path),
3434
'branchname': branch_name}
3436
def get(self, name, default=None, expand=True):
3437
value = super(LocationSection, self).get(name, default)
3438
if value is not None and expand:
3439
policy_name = self.get(name + ':policy', None)
3440
policy = _policy_value.get(policy_name, POLICY_NONE)
3441
if policy == POLICY_APPENDPATH:
3442
value = urlutils.join(value, self.extra_path)
3443
# expand section local options right now (since POLICY_APPENDPATH
3444
# will never add options references, it's ok to expand after it).
3446
for is_ref, chunk in iter_option_refs(value):
3448
chunks.append(chunk)
3451
if ref in self.locals:
3452
chunks.append(self.locals[ref])
3454
chunks.append(chunk)
3455
value = ''.join(chunks)
3459
class StartingPathMatcher(SectionMatcher):
3460
"""Select sections for a given location respecting the Store order."""
3462
# FIXME: Both local paths and urls can be used for section names as well as
3463
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3464
# inherited the fuzziness from the previous ``LocationConfig``
3465
# implementation. We probably need to revisit which encoding is allowed for
3466
# both ``location`` and section names and how we normalize
3467
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3468
# related too. -- vila 2012-01-04
3470
def __init__(self, store, location):
3471
super(StartingPathMatcher, self).__init__(store)
3472
if location.startswith('file://'):
3473
location = urlutils.local_path_from_url(location)
3474
self.location = location
3476
def get_sections(self):
3477
"""Get all sections matching ``location`` in the store.
3479
The most generic sections are described first in the store, then more
3480
specific ones can be provided for reduced scopes.
3482
The returned section are therefore returned in the reversed order so
3483
the most specific ones can be found first.
3485
location_parts = self.location.rstrip('/').split('/')
3487
# Later sections are more specific, they should be returned first
3488
for _, section in reversed(list(store.get_sections())):
3489
if section.id is None:
3490
# The no-name section is always included if present
3491
yield store, LocationSection(section, self.location)
3493
section_path = section.id
3494
if section_path.startswith('file://'):
3495
# the location is already a local path or URL, convert the
3496
# section id to the same format
3497
section_path = urlutils.local_path_from_url(section_path)
3498
if (self.location.startswith(section_path)
3499
or fnmatch.fnmatch(self.location, section_path)):
3500
section_parts = section_path.rstrip('/').split('/')
3501
extra_path = '/'.join(location_parts[len(section_parts):])
3502
yield store, LocationSection(section, extra_path)
3505
class LocationMatcher(SectionMatcher):
3507
def __init__(self, store, location):
3508
super(LocationMatcher, self).__init__(store)
3509
url, params = urlutils.split_segment_parameters(location)
3510
if location.startswith('file://'):
3511
location = urlutils.local_path_from_url(location)
3512
self.location = location
3513
branch_name = params.get('branch')
3514
if branch_name is None:
3515
self.branch_name = urlutils.basename(self.location)
3517
self.branch_name = urlutils.unescape(branch_name)
3519
def _get_matching_sections(self):
3520
"""Get all sections matching ``location``."""
3521
# We slightly diverge from LocalConfig here by allowing the no-name
3522
# section as the most generic one and the lower priority.
3523
no_name_section = None
3525
# Filter out the no_name_section so _iter_for_location_by_parts can be
3526
# used (it assumes all sections have a name).
3527
for _, section in self.store.get_sections():
3528
if section.id is None:
3529
no_name_section = section
3531
all_sections.append(section)
3532
# Unfortunately _iter_for_location_by_parts deals with section names so
3533
# we have to resync.
3534
filtered_sections = _iter_for_location_by_parts(
3535
[s.id for s in all_sections], self.location)
3536
iter_all_sections = iter(all_sections)
3537
matching_sections = []
3538
if no_name_section is not None:
3539
matching_sections.append(
3540
(0, LocationSection(no_name_section, self.location)))
3541
for section_id, extra_path, length in filtered_sections:
3542
# a section id is unique for a given store so it's safe to take the
3543
# first matching section while iterating. Also, all filtered
3544
# sections are part of 'all_sections' and will always be found
3547
section = next(iter_all_sections)
3548
if section_id == section.id:
3549
section = LocationSection(section, extra_path,
3551
matching_sections.append((length, section))
3553
return matching_sections
3555
def get_sections(self):
3556
# Override the default implementation as we want to change the order
3557
# We want the longest (aka more specific) locations first
3558
sections = sorted(self._get_matching_sections(),
3559
key=lambda match: (match[0], match[1].id),
3561
# Sections mentioning 'ignore_parents' restrict the selection
3562
for _, section in sections:
3563
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3564
ignore = section.get('ignore_parents', None)
3565
if ignore is not None:
3566
ignore = ui.bool_from_string(ignore)
3569
# Finally, we have a valid section
3570
yield self.store, section
3573
# FIXME: _shared_stores should be an attribute of a library state once a
3574
# library_state object is always available.
3576
_shared_stores_at_exit_installed = False
3578
class Stack(object):
3579
"""A stack of configurations where an option can be defined"""
3581
def __init__(self, sections_def, store=None, mutable_section_id=None):
3582
"""Creates a stack of sections with an optional store for changes.
3584
:param sections_def: A list of Section or callables that returns an
3585
iterable of Section. This defines the Sections for the Stack and
3586
can be called repeatedly if needed.
3588
:param store: The optional Store where modifications will be
3589
recorded. If none is specified, no modifications can be done.
3591
:param mutable_section_id: The id of the MutableSection where changes
3592
are recorded. This requires the ``store`` parameter to be
3595
self.sections_def = sections_def
3597
self.mutable_section_id = mutable_section_id
3599
def iter_sections(self):
3600
"""Iterate all the defined sections."""
3601
# Ensuring lazy loading is achieved by delaying section matching (which
3602
# implies querying the persistent storage) until it can't be avoided
3603
# anymore by using callables to describe (possibly empty) section
3605
for sections in self.sections_def:
3606
for store, section in sections():
3607
yield store, section
3609
def get(self, name, expand=True, convert=True):
3610
"""Return the *first* option value found in the sections.
3612
This is where we guarantee that sections coming from Store are loaded
3613
lazily: the loading is delayed until we need to either check that an
3614
option exists or get its value, which in turn may require to discover
3615
in which sections it can be defined. Both of these (section and option
3616
existence) require loading the store (even partially).
3618
:param name: The queried option.
3620
:param expand: Whether options references should be expanded.
3622
:param convert: Whether the option value should be converted from
3623
unicode (do nothing for non-registered options).
3625
:returns: The value of the option.
3627
# FIXME: No caching of options nor sections yet -- vila 20110503
3629
found_store = None # Where the option value has been found
3630
# If the option is registered, it may provide additional info about
3633
opt = option_registry.get(name)
3638
def expand_and_convert(val):
3639
# This may need to be called in different contexts if the value is
3640
# None or ends up being None during expansion or conversion.
3643
if isinstance(val, string_types):
3644
val = self._expand_options_in_string(val)
3646
trace.warning('Cannot expand "%s":'
3647
' %s does not support option expansion'
3648
% (name, type(val)))
3650
val = found_store.unquote(val)
3652
val = opt.convert_from_unicode(found_store, val)
3655
# First of all, check if the environment can override the configuration
3657
if opt is not None and opt.override_from_env:
3658
value = opt.get_override()
3659
value = expand_and_convert(value)
3661
for store, section in self.iter_sections():
3662
value = section.get(name)
3663
if value is not None:
3666
value = expand_and_convert(value)
3667
if opt is not None and value is None:
3668
# If the option is registered, it may provide a default value
3669
value = opt.get_default()
3670
value = expand_and_convert(value)
3671
for hook in ConfigHooks['get']:
3672
hook(self, name, value)
3675
def expand_options(self, string, env=None):
3676
"""Expand option references in the string in the configuration context.
3678
:param string: The string containing option(s) to expand.
3680
:param env: An option dict defining additional configuration options or
3681
overriding existing ones.
3683
:returns: The expanded string.
3685
return self._expand_options_in_string(string, env)
3687
def _expand_options_in_string(self, string, env=None, _refs=None):
3688
"""Expand options in the string in the configuration context.
3690
:param string: The string to be expanded.
3692
:param env: An option dict defining additional configuration options or
3693
overriding existing ones.
3695
:param _refs: Private list (FIFO) containing the options being expanded
3698
:returns: The expanded string.
3701
# Not much to expand there
3704
# What references are currently resolved (to detect loops)
3707
# We need to iterate until no more refs appear ({{foo}} will need two
3708
# iterations for example).
3713
for is_ref, chunk in iter_option_refs(result):
3715
chunks.append(chunk)
3720
raise errors.OptionExpansionLoop(string, _refs)
3722
value = self._expand_option(name, env, _refs)
3724
raise errors.ExpandingUnknownOption(name, string)
3725
chunks.append(value)
3727
result = ''.join(chunks)
3730
def _expand_option(self, name, env, _refs):
3731
if env is not None and name in env:
3732
# Special case, values provided in env takes precedence over
3736
value = self.get(name, expand=False, convert=False)
3737
value = self._expand_options_in_string(value, env, _refs)
3740
def _get_mutable_section(self):
3741
"""Get the MutableSection for the Stack.
3743
This is where we guarantee that the mutable section is lazily loaded:
3744
this means we won't load the corresponding store before setting a value
3745
or deleting an option. In practice the store will often be loaded but
3746
this helps catching some programming errors.
3749
section = store.get_mutable_section(self.mutable_section_id)
3750
return store, section
3752
def set(self, name, value):
3753
"""Set a new value for the option."""
3754
store, section = self._get_mutable_section()
3755
section.set(name, store.quote(value))
3756
for hook in ConfigHooks['set']:
3757
hook(self, name, value)
3759
def remove(self, name):
3760
"""Remove an existing option."""
3761
_, section = self._get_mutable_section()
3762
section.remove(name)
3763
for hook in ConfigHooks['remove']:
3767
# Mostly for debugging use
3768
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3770
def _get_overrides(self):
3771
# FIXME: Hack around library_state.initialize never called
3772
if breezy.global_state is not None:
3773
return breezy.global_state.cmdline_overrides.get_sections()
3776
def get_shared_store(self, store, state=None):
3777
"""Get a known shared store.
3779
Store urls uniquely identify them and are used to ensure a single copy
3780
is shared across all users.
3782
:param store: The store known to the caller.
3784
:param state: The library state where the known stores are kept.
3786
:returns: The store received if it's not a known one, an already known
3790
state = breezy.global_state
3792
global _shared_stores_at_exit_installed
3793
stores = _shared_stores
3794
def save_config_changes():
3795
for k, store in stores.items():
3796
store.save_changes()
3797
if not _shared_stores_at_exit_installed:
3798
# FIXME: Ugly hack waiting for library_state to always be
3799
# available. -- vila 20120731
3801
atexit.register(save_config_changes)
3802
_shared_stores_at_exit_installed = True
3804
stores = state.config_stores
3805
url = store.external_url()
3813
class MemoryStack(Stack):
3814
"""A configuration stack defined from a string.
3816
This is mainly intended for tests and requires no disk resources.
3819
def __init__(self, content=None):
3820
"""Create an in-memory stack from a given content.
3822
It uses a single store based on configobj and support reading and
3825
:param content: The initial content of the store. If None, the store is
3826
not loaded and ``_load_from_string`` can and should be used if
3829
store = IniFileStore()
3830
if content is not None:
3831
store._load_from_string(content)
3832
super(MemoryStack, self).__init__(
3833
[store.get_sections], store)
3836
class _CompatibleStack(Stack):
3837
"""Place holder for compatibility with previous design.
3839
This is intended to ease the transition from the Config-based design to the
3840
Stack-based design and should not be used nor relied upon by plugins.
3842
One assumption made here is that the daughter classes will all use Stores
3843
derived from LockableIniFileStore).
3845
It implements set() and remove () by re-loading the store before applying
3846
the modification and saving it.
3848
The long term plan being to implement a single write by store to save
3849
all modifications, this class should not be used in the interim.
3852
def set(self, name, value):
3855
super(_CompatibleStack, self).set(name, value)
3856
# Force a write to persistent storage
3859
def remove(self, name):
3862
super(_CompatibleStack, self).remove(name)
3863
# Force a write to persistent storage
3867
class GlobalStack(Stack):
3868
"""Global options only stack.
3870
The following sections are queried:
3872
* command-line overrides,
3874
* the 'DEFAULT' section in bazaar.conf
3876
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3881
gstore = self.get_shared_store(GlobalStore())
3882
super(GlobalStack, self).__init__(
3883
[self._get_overrides,
3884
NameMatcher(gstore, 'DEFAULT').get_sections],
3885
gstore, mutable_section_id='DEFAULT')
3888
class LocationStack(Stack):
3889
"""Per-location options falling back to global options stack.
3892
The following sections are queried:
3894
* command-line overrides,
3896
* the sections matching ``location`` in ``locations.conf``, the order being
3897
defined by the number of path components in the section glob, higher
3898
numbers first (from most specific section to most generic).
3900
* the 'DEFAULT' section in bazaar.conf
3902
This stack will use the ``location`` section in locations.conf as its
3906
def __init__(self, location):
3907
"""Make a new stack for a location and global configuration.
3909
:param location: A URL prefix to """
3910
lstore = self.get_shared_store(LocationStore())
3911
if location.startswith('file://'):
3912
location = urlutils.local_path_from_url(location)
3913
gstore = self.get_shared_store(GlobalStore())
3914
super(LocationStack, self).__init__(
3915
[self._get_overrides,
3916
LocationMatcher(lstore, location).get_sections,
3917
NameMatcher(gstore, 'DEFAULT').get_sections],
3918
lstore, mutable_section_id=location)
3921
class BranchStack(Stack):
3922
"""Per-location options falling back to branch then global options stack.
3924
The following sections are queried:
3926
* command-line overrides,
3928
* the sections matching ``location`` in ``locations.conf``, the order being
3929
defined by the number of path components in the section glob, higher
3930
numbers first (from most specific section to most generic),
3932
* the no-name section in branch.conf,
3934
* the ``DEFAULT`` section in ``bazaar.conf``.
3936
This stack will use the no-name section in ``branch.conf`` as its
3940
def __init__(self, branch):
3941
lstore = self.get_shared_store(LocationStore())
3942
bstore = branch._get_config_store()
3943
gstore = self.get_shared_store(GlobalStore())
3944
super(BranchStack, self).__init__(
3945
[self._get_overrides,
3946
LocationMatcher(lstore, branch.base).get_sections,
3947
NameMatcher(bstore, None).get_sections,
3948
NameMatcher(gstore, 'DEFAULT').get_sections],
3950
self.branch = branch
3952
def lock_write(self, token=None):
3953
return self.branch.lock_write(token)
3956
return self.branch.unlock()
3959
def set(self, name, value):
3960
super(BranchStack, self).set(name, value)
3961
# Unlocking the branch will trigger a store.save_changes() so the last
3962
# unlock saves all the changes.
3965
def remove(self, name):
3966
super(BranchStack, self).remove(name)
3967
# Unlocking the branch will trigger a store.save_changes() so the last
3968
# unlock saves all the changes.
3971
class RemoteControlStack(Stack):
3972
"""Remote control-only options stack."""
3974
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3975
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3976
# control.conf and is used only for stack options.
3978
def __init__(self, bzrdir):
3979
cstore = bzrdir._get_config_store()
3980
super(RemoteControlStack, self).__init__(
3981
[NameMatcher(cstore, None).get_sections],
3983
self.controldir = bzrdir
3986
class BranchOnlyStack(Stack):
3987
"""Branch-only options stack."""
3989
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3990
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3991
# -- vila 2011-12-16
3993
def __init__(self, branch):
3994
bstore = branch._get_config_store()
3995
super(BranchOnlyStack, self).__init__(
3996
[NameMatcher(bstore, None).get_sections],
3998
self.branch = branch
4000
def lock_write(self, token=None):
4001
return self.branch.lock_write(token)
4004
return self.branch.unlock()
4007
def set(self, name, value):
4008
super(BranchOnlyStack, self).set(name, value)
4009
# Force a write to persistent storage
4010
self.store.save_changes()
4013
def remove(self, name):
4014
super(BranchOnlyStack, self).remove(name)
4015
# Force a write to persistent storage
4016
self.store.save_changes()
4019
class cmd_config(commands.Command):
4020
__doc__ = """Display, set or remove a configuration option.
4022
Display the active value for option NAME.
4024
If --all is specified, NAME is interpreted as a regular expression and all
4025
matching options are displayed mentioning their scope and without resolving
4026
option references in the value). The active value that bzr will take into
4027
account is the first one displayed for each option.
4029
If NAME is not given, --all .* is implied (all options are displayed for the
4032
Setting a value is achieved by using NAME=value without spaces. The value
4033
is set in the most relevant scope and can be checked by displaying the
4036
Removing a value is achieved by using --remove NAME.
4039
takes_args = ['name?']
4043
# FIXME: This should be a registry option so that plugins can register
4044
# their own config files (or not) and will also address
4045
# http://pad.lv/788991 -- vila 20101115
4046
commands.Option('scope', help='Reduce the scope to the specified'
4047
' configuration file.',
4049
commands.Option('all',
4050
help='Display all the defined values for the matching options.',
4052
commands.Option('remove', help='Remove the option from'
4053
' the configuration file.'),
4056
_see_also = ['configuration']
4058
@commands.display_command
4059
def run(self, name=None, all=False, directory=None, scope=None,
4061
if directory is None:
4063
directory = directory_service.directories.dereference(directory)
4064
directory = urlutils.normalize_url(directory)
4066
raise errors.BzrError(
4067
'--all and --remove are mutually exclusive.')
4069
# Delete the option in the given scope
4070
self._remove_config_option(name, directory, scope)
4072
# Defaults to all options
4073
self._show_matching_options('.*', directory, scope)
4076
name, value = name.split('=', 1)
4078
# Display the option(s) value(s)
4080
self._show_matching_options(name, directory, scope)
4082
self._show_value(name, directory, scope)
4085
raise errors.BzrError(
4086
'Only one option can be set.')
4087
# Set the option value
4088
self._set_config_option(name, value, directory, scope)
4090
def _get_stack(self, directory, scope=None, write_access=False):
4091
"""Get the configuration stack specified by ``directory`` and ``scope``.
4093
:param directory: Where the configurations are derived from.
4095
:param scope: A specific config to start from.
4097
:param write_access: Whether a write access to the stack will be
4100
# FIXME: scope should allow access to plugin-specific stacks (even
4101
# reduced to the plugin-specific store), related to
4102
# http://pad.lv/788991 -- vila 2011-11-15
4103
if scope is not None:
4104
if scope == 'bazaar':
4105
return GlobalStack()
4106
elif scope == 'locations':
4107
return LocationStack(directory)
4108
elif scope == 'branch':
4110
controldir.ControlDir.open_containing_tree_or_branch(
4113
self.add_cleanup(br.lock_write().unlock)
4114
return br.get_config_stack()
4115
raise errors.NoSuchConfig(scope)
4119
controldir.ControlDir.open_containing_tree_or_branch(
4122
self.add_cleanup(br.lock_write().unlock)
4123
return br.get_config_stack()
4124
except errors.NotBranchError:
4125
return LocationStack(directory)
4127
def _quote_multiline(self, value):
4129
value = '"""' + value + '"""'
4132
def _show_value(self, name, directory, scope):
4133
conf = self._get_stack(directory, scope)
4134
value = conf.get(name, expand=True, convert=False)
4135
if value is not None:
4136
# Quote the value appropriately
4137
value = self._quote_multiline(value)
4138
self.outf.write('%s\n' % (value,))
4140
raise errors.NoSuchConfigOption(name)
4142
def _show_matching_options(self, name, directory, scope):
4143
name = lazy_regex.lazy_compile(name)
4144
# We want any error in the regexp to be raised *now* so we need to
4145
# avoid the delay introduced by the lazy regexp. But, we still do
4146
# want the nicer errors raised by lazy_regex.
4147
name._compile_and_collapse()
4150
conf = self._get_stack(directory, scope)
4151
for store, section in conf.iter_sections():
4152
for oname in section.iter_option_names():
4153
if name.search(oname):
4154
if cur_store_id != store.id:
4155
# Explain where the options are defined
4156
self.outf.write('%s:\n' % (store.id,))
4157
cur_store_id = store.id
4159
if (section.id is not None and cur_section != section.id):
4160
# Display the section id as it appears in the store
4161
# (None doesn't appear by definition)
4162
self.outf.write(' [%s]\n' % (section.id,))
4163
cur_section = section.id
4164
value = section.get(oname, expand=False)
4165
# Quote the value appropriately
4166
value = self._quote_multiline(value)
4167
self.outf.write(' %s = %s\n' % (oname, value))
4169
def _set_config_option(self, name, value, directory, scope):
4170
conf = self._get_stack(directory, scope, write_access=True)
4171
conf.set(name, value)
4172
# Explicitly save the changes
4173
conf.store.save_changes()
4175
def _remove_config_option(self, name, directory, scope):
4177
raise errors.BzrCommandError(
4178
'--remove expects an option to remove.')
4179
conf = self._get_stack(directory, scope, write_access=True)
4182
# Explicitly save the changes
4183
conf.store.save_changes()
4185
raise errors.NoSuchConfigOption(name)
4190
# We need adapters that can build a Store or a Stack in a test context. Test
4191
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4192
# themselves. The builder will receive a test instance and should return a
4193
# ready-to-use store or stack. Plugins that define new store/stacks can also
4194
# register themselves here to be tested against the tests defined in
4195
# breezy.tests.test_config. Note that the builder can be called multiple times
4196
# for the same test.
4198
# The registered object should be a callable receiving a test instance
4199
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4201
test_store_builder_registry = registry.Registry()
4203
# The registered object should be a callable receiving a test instance
4204
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4206
test_stack_builder_registry = registry.Registry()