1508
2167
configobj[name] = value
1510
2169
configobj.setdefault(section, {})[name] = value
2170
for hook in OldConfigHooks['set']:
2171
hook(self, name, value)
2172
self._set_configobj(configobj)
2174
def remove_option(self, option_name, section_name=None):
2175
configobj = self._get_configobj()
2176
if section_name is None:
2177
del configobj[option_name]
2179
del configobj[section_name][option_name]
2180
for hook in OldConfigHooks['remove']:
2181
hook(self, option_name)
1511
2182
self._set_configobj(configobj)
1513
2184
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2186
f = BytesIO(self._transport.get_bytes(self._filename))
2187
for hook in OldConfigHooks['load']:
1516
2190
except errors.NoSuchFile:
2192
except errors.PermissionDenied as e:
2193
trace.warning("Permission denied while trying to open "
2194
"configuration file %s.", urlutils.unescape_for_display(
2195
urlutils.join(self._transport.base, self._filename), "utf-8"))
2198
def _external_url(self):
2199
return urlutils.join(self._transport.external_url(), self._filename)
1519
2201
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2202
f = self._get_config_file()
2205
conf = ConfigObj(f, encoding='utf-8')
2206
except configobj.ConfigObjError as e:
2207
raise errors.ParseConfigError(e.errors, self._external_url())
2208
except UnicodeDecodeError:
2209
raise errors.ConfigContentError(self._external_url())
1522
2214
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2215
out_file = BytesIO()
1524
2216
configobj.write(out_file)
1525
2217
out_file.seek(0)
1526
2218
self._transport.put_file(self._filename, out_file)
2219
for hook in OldConfigHooks['save']:
2223
class Option(object):
2224
"""An option definition.
2226
The option *values* are stored in config files and found in sections.
2228
Here we define various properties about the option itself, its default
2229
value, how to convert it from stores, what to do when invalid values are
2230
encoutered, in which config files it can be stored.
2233
def __init__(self, name, override_from_env=None,
2234
default=None, default_from_env=None,
2235
help=None, from_unicode=None, invalid=None, unquote=True):
2236
"""Build an option definition.
2238
:param name: the name used to refer to the option.
2240
:param override_from_env: A list of environment variables which can
2241
provide override any configuration setting.
2243
:param default: the default value to use when none exist in the config
2244
stores. This is either a string that ``from_unicode`` will convert
2245
into the proper type, a callable returning a unicode string so that
2246
``from_unicode`` can be used on the return value, or a python
2247
object that can be stringified (so only the empty list is supported
2250
:param default_from_env: A list of environment variables which can
2251
provide a default value. 'default' will be used only if none of the
2252
variables specified here are set in the environment.
2254
:param help: a doc string to explain the option to the user.
2256
:param from_unicode: a callable to convert the unicode string
2257
representing the option value in a store or its default value.
2259
:param invalid: the action to be taken when an invalid value is
2260
encountered in a store. This is called only when from_unicode is
2261
invoked to convert a string and returns None or raise ValueError or
2262
TypeError. Accepted values are: None (ignore invalid values),
2263
'warning' (emit a warning), 'error' (emit an error message and
2266
:param unquote: should the unicode value be unquoted before conversion.
2267
This should be used only when the store providing the values cannot
2268
safely unquote them (see http://pad.lv/906897). It is provided so
2269
daughter classes can handle the quoting themselves.
2271
if override_from_env is None:
2272
override_from_env = []
2273
if default_from_env is None:
2274
default_from_env = []
2276
self.override_from_env = override_from_env
2277
# Convert the default value to a unicode string so all values are
2278
# strings internally before conversion (via from_unicode) is attempted.
2281
elif isinstance(default, list):
2282
# Only the empty list is supported
2284
raise AssertionError(
2285
'Only empty lists are supported as default values')
2287
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2288
# Rely on python to convert strings, booleans and integers
2289
self.default = u'%s' % (default,)
2290
elif callable(default):
2291
self.default = default
2293
# other python objects are not expected
2294
raise AssertionError('%r is not supported as a default value'
2296
self.default_from_env = default_from_env
2298
self.from_unicode = from_unicode
2299
self.unquote = unquote
2300
if invalid and invalid not in ('warning', 'error'):
2301
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2302
self.invalid = invalid
2308
def convert_from_unicode(self, store, unicode_value):
2309
if self.unquote and store is not None and unicode_value is not None:
2310
unicode_value = store.unquote(unicode_value)
2311
if self.from_unicode is None or unicode_value is None:
2312
# Don't convert or nothing to convert
2313
return unicode_value
2315
converted = self.from_unicode(unicode_value)
2316
except (ValueError, TypeError):
2317
# Invalid values are ignored
2319
if converted is None and self.invalid is not None:
2320
# The conversion failed
2321
if self.invalid == 'warning':
2322
trace.warning('Value "%s" is not valid for "%s"',
2323
unicode_value, self.name)
2324
elif self.invalid == 'error':
2325
raise errors.ConfigOptionValueError(self.name, unicode_value)
2328
def get_override(self):
2330
for var in self.override_from_env:
2332
# If the env variable is defined, its value takes precedence
2333
value = os.environ[var].decode(osutils.get_user_encoding())
2339
def get_default(self):
2341
for var in self.default_from_env:
2343
# If the env variable is defined, its value is the default one
2344
value = os.environ[var].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_command',
2703
Program to use use for creating signatures.
2705
This should support at least the -u and --clearsign options.
2707
option_registry.register(
2708
Option('gpg_signing_key',
2711
GPG key to use for signing.
2713
This defaults to the first key associated with the users email.
2715
option_registry.register(
2716
Option('ignore_missing_extensions', default=False,
2717
from_unicode=bool_from_store,
2719
Control the missing extensions warning display.
2721
The warning will not be emitted if set to True.
2723
option_registry.register(
2725
help='Language to translate messages into.'))
2726
option_registry.register(
2727
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2729
Steal locks that appears to be dead.
2731
If set to True, bzr will check if a lock is supposed to be held by an
2732
active process from the same user on the same machine. If the user and
2733
machine match, but no process with the given PID is active, then bzr
2734
will automatically break the stale lock, and create a new lock for
2736
Otherwise, bzr will prompt as normal to break the lock.
2738
option_registry.register(
2739
Option('log_format', default='long',
2741
Log format to use when displaying revisions.
2743
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2744
may be provided by plugins.
2746
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2748
option_registry.register(
2749
Option('output_encoding',
2750
help= 'Unicode encoding for output'
2751
' (terminal encoding if not specified).'))
2752
option_registry.register(
2753
Option('parent_location',
2756
The location of the default branch for pull or merge.
2758
This option is normally set when creating a branch, the first ``pull`` or by
2759
``pull --remember``.
2761
option_registry.register(
2762
Option('post_commit', default=None,
2764
Post commit functions.
2766
An ordered list of python functions to call, separated by spaces.
2768
Each function takes branch, rev_id as parameters.
2770
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2772
option_registry.register(
2773
Option('public_branch',
2776
A publically-accessible version of this branch.
2778
This implies that the branch setting this option is not publically-accessible.
2779
Used and set by ``bzr send``.
2781
option_registry.register(
2782
Option('push_location',
2785
The location of the default branch for push.
2787
This option is normally set by the first ``push`` or ``push --remember``.
2789
option_registry.register(
2790
Option('push_strict', default=None,
2791
from_unicode=bool_from_store,
2793
The default value for ``push --strict``.
2795
If present, defines the ``--strict`` option default value for checking
2796
uncommitted changes before sending a merge directive.
2798
option_registry.register(
2799
Option('repository.fdatasync', default=True,
2800
from_unicode=bool_from_store,
2802
Flush repository changes onto physical disk?
2804
If true (default), repository changes are flushed through the OS buffers
2805
to physical disk. This is somewhat slower, but means data should not be
2806
lost if the machine crashes. See also dirstate.fdatasync.
2808
option_registry.register_lazy('smtp_server',
2809
'breezy.smtp_connection', 'smtp_server')
2810
option_registry.register_lazy('smtp_password',
2811
'breezy.smtp_connection', 'smtp_password')
2812
option_registry.register_lazy('smtp_username',
2813
'breezy.smtp_connection', 'smtp_username')
2814
option_registry.register(
2815
Option('selftest.timeout',
2817
from_unicode=int_from_store,
2818
help='Abort selftest if one test takes longer than this many seconds',
2821
option_registry.register(
2822
Option('send_strict', default=None,
2823
from_unicode=bool_from_store,
2825
The default value for ``send --strict``.
2827
If present, defines the ``--strict`` option default value for checking
2828
uncommitted changes before sending a bundle.
2831
option_registry.register(
2832
Option('serve.client_timeout',
2833
default=300.0, from_unicode=float_from_store,
2834
help="If we wait for a new request from a client for more than"
2835
" X seconds, consider the client idle, and hangup."))
2836
option_registry.register(
2837
Option('stacked_on_location',
2839
help="""The location where this branch is stacked on."""))
2840
option_registry.register(
2841
Option('submit_branch',
2844
The branch you intend to submit your current work to.
2846
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2847
by the ``submit:`` revision spec.
2849
option_registry.register(
2851
help='''Where submissions from this branch are mailed to.'''))
2852
option_registry.register(
2853
ListOption('suppress_warnings',
2855
help="List of warning classes to suppress."))
2856
option_registry.register(
2857
Option('validate_signatures_in_log', default=False,
2858
from_unicode=bool_from_store, invalid='warning',
2859
help='''Whether to validate signatures in brz log.'''))
2860
option_registry.register_lazy('ssl.ca_certs',
2861
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2863
option_registry.register_lazy('ssl.cert_reqs',
2864
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2867
class Section(object):
2868
"""A section defines a dict of option name => value.
2870
This is merely a read-only dict which can add some knowledge about the
2871
options. It is *not* a python dict object though and doesn't try to mimic
2875
def __init__(self, section_id, options):
2876
self.id = section_id
2877
# We re-use the dict-like object received
2878
self.options = options
2880
def get(self, name, default=None, expand=True):
2881
return self.options.get(name, default)
2883
def iter_option_names(self):
2884
for k in self.options.keys():
2888
# Mostly for debugging use
2889
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2892
_NewlyCreatedOption = object()
2893
"""Was the option created during the MutableSection lifetime"""
2894
_DeletedOption = object()
2895
"""Was the option deleted during the MutableSection lifetime"""
2898
class MutableSection(Section):
2899
"""A section allowing changes and keeping track of the original values."""
2901
def __init__(self, section_id, options):
2902
super(MutableSection, self).__init__(section_id, options)
2903
self.reset_changes()
2905
def set(self, name, value):
2906
if name not in self.options:
2907
# This is a new option
2908
self.orig[name] = _NewlyCreatedOption
2909
elif name not in self.orig:
2910
self.orig[name] = self.get(name, None)
2911
self.options[name] = value
2913
def remove(self, name):
2914
if name not in self.orig and name in self.options:
2915
self.orig[name] = self.get(name, None)
2916
del self.options[name]
2918
def reset_changes(self):
2921
def apply_changes(self, dirty, store):
2922
"""Apply option value changes.
2924
``self`` has been reloaded from the persistent storage. ``dirty``
2925
contains the changes made since the previous loading.
2927
:param dirty: the mutable section containing the changes.
2929
:param store: the store containing the section
2931
for k, expected in dirty.orig.items():
2932
actual = dirty.get(k, _DeletedOption)
2933
reloaded = self.get(k, _NewlyCreatedOption)
2934
if actual is _DeletedOption:
2935
if k in self.options:
2939
# Report concurrent updates in an ad-hoc way. This should only
2940
# occurs when different processes try to update the same option
2941
# which is not supported (as in: the config framework is not meant
2942
# to be used as a sharing mechanism).
2943
if expected != reloaded:
2944
if actual is _DeletedOption:
2945
actual = '<DELETED>'
2946
if reloaded is _NewlyCreatedOption:
2947
reloaded = '<CREATED>'
2948
if expected is _NewlyCreatedOption:
2949
expected = '<CREATED>'
2950
# Someone changed the value since we get it from the persistent
2952
trace.warning(gettext(
2953
"Option {0} in section {1} of {2} was changed"
2954
" from {3} to {4}. The {5} value will be saved.".format(
2955
k, self.id, store.external_url(), expected,
2957
# No need to keep track of these changes
2958
self.reset_changes()
2961
class Store(object):
2962
"""Abstract interface to persistent storage for configuration options."""
2964
readonly_section_class = Section
2965
mutable_section_class = MutableSection
2968
# Which sections need to be saved (by section id). We use a dict here
2969
# so the dirty sections can be shared by multiple callers.
2970
self.dirty_sections = {}
2972
def is_loaded(self):
2973
"""Returns True if the Store has been loaded.
2975
This is used to implement lazy loading and ensure the persistent
2976
storage is queried only when needed.
2978
raise NotImplementedError(self.is_loaded)
2981
"""Loads the Store from persistent storage."""
2982
raise NotImplementedError(self.load)
2984
def _load_from_string(self, bytes):
2985
"""Create a store from a string in configobj syntax.
2987
:param bytes: A string representing the file content.
2989
raise NotImplementedError(self._load_from_string)
2992
"""Unloads the Store.
2994
This should make is_loaded() return False. This is used when the caller
2995
knows that the persistent storage has changed or may have change since
2998
raise NotImplementedError(self.unload)
3000
def quote(self, value):
3001
"""Quote a configuration option value for storing purposes.
3003
This allows Stacks to present values as they will be stored.
3007
def unquote(self, value):
3008
"""Unquote a configuration option value into unicode.
3010
The received value is quoted as stored.
3015
"""Saves the Store to persistent storage."""
3016
raise NotImplementedError(self.save)
3018
def _need_saving(self):
3019
for s in self.dirty_sections.values():
3021
# At least one dirty section contains a modification
3025
def apply_changes(self, dirty_sections):
3026
"""Apply changes from dirty sections while checking for coherency.
3028
The Store content is discarded and reloaded from persistent storage to
3029
acquire up-to-date values.
3031
Dirty sections are MutableSection which kept track of the value they
3032
are expected to update.
3034
# We need an up-to-date version from the persistent storage, unload the
3035
# store. The reload will occur when needed (triggered by the first
3036
# get_mutable_section() call below.
3038
# Apply the changes from the preserved dirty sections
3039
for section_id, dirty in dirty_sections.items():
3040
clean = self.get_mutable_section(section_id)
3041
clean.apply_changes(dirty, self)
3042
# Everything is clean now
3043
self.dirty_sections = {}
3045
def save_changes(self):
3046
"""Saves the Store to persistent storage if changes occurred.
3048
Apply the changes recorded in the mutable sections to a store content
3049
refreshed from persistent storage.
3051
raise NotImplementedError(self.save_changes)
3053
def external_url(self):
3054
raise NotImplementedError(self.external_url)
3056
def get_sections(self):
3057
"""Returns an ordered iterable of existing sections.
3059
:returns: An iterable of (store, section).
3061
raise NotImplementedError(self.get_sections)
3063
def get_mutable_section(self, section_id=None):
3064
"""Returns the specified mutable section.
3066
:param section_id: The section identifier
3068
raise NotImplementedError(self.get_mutable_section)
3071
# Mostly for debugging use
3072
return "<config.%s(%s)>" % (self.__class__.__name__,
3073
self.external_url())
3076
class CommandLineStore(Store):
3077
"A store to carry command line overrides for the config options."""
3079
def __init__(self, opts=None):
3080
super(CommandLineStore, self).__init__()
3087
# The dict should be cleared but not replaced so it can be shared.
3088
self.options.clear()
3090
def _from_cmdline(self, overrides):
3091
# Reset before accepting new definitions
3093
for over in overrides:
3095
name, value = over.split('=', 1)
3097
raise errors.BzrCommandError(
3098
gettext("Invalid '%s', should be of the form 'name=value'")
3100
self.options[name] = value
3102
def external_url(self):
3103
# Not an url but it makes debugging easier and is never needed
3107
def get_sections(self):
3108
yield self, self.readonly_section_class(None, self.options)
3111
class IniFileStore(Store):
3112
"""A config Store using ConfigObj for storage.
3114
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3115
serialize/deserialize the config file.
3119
"""A config Store using ConfigObj for storage.
3121
super(IniFileStore, self).__init__()
3122
self._config_obj = None
3124
def is_loaded(self):
3125
return self._config_obj != None
3128
self._config_obj = None
3129
self.dirty_sections = {}
3131
def _load_content(self):
3132
"""Load the config file bytes.
3134
This should be provided by subclasses
3136
:return: Byte string
3138
raise NotImplementedError(self._load_content)
3140
def _save_content(self, content):
3141
"""Save the config file bytes.
3143
This should be provided by subclasses
3145
:param content: Config file bytes to write
3147
raise NotImplementedError(self._save_content)
3150
"""Load the store from the associated file."""
3151
if self.is_loaded():
3153
content = self._load_content()
3154
self._load_from_string(content)
3155
for hook in ConfigHooks['load']:
3158
def _load_from_string(self, bytes):
3159
"""Create a config store from a string.
3161
:param bytes: A string representing the file content.
3163
if self.is_loaded():
3164
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3165
co_input = BytesIO(bytes)
3167
# The config files are always stored utf8-encoded
3168
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3170
except configobj.ConfigObjError as e:
3171
self._config_obj = None
3172
raise errors.ParseConfigError(e.errors, self.external_url())
3173
except UnicodeDecodeError:
3174
raise errors.ConfigContentError(self.external_url())
3176
def save_changes(self):
3177
if not self.is_loaded():
3180
if not self._need_saving():
3182
# Preserve the current version
3183
dirty_sections = self.dirty_sections.copy()
3184
self.apply_changes(dirty_sections)
3185
# Save to the persistent storage
3189
if not self.is_loaded():
3193
self._config_obj.write(out)
3194
self._save_content(out.getvalue())
3195
for hook in ConfigHooks['save']:
3198
def get_sections(self):
3199
"""Get the configobj section in the file order.
3201
:returns: An iterable of (store, section).
3203
# We need a loaded store
3206
except (errors.NoSuchFile, errors.PermissionDenied):
3207
# If the file can't be read, there is no sections
3209
cobj = self._config_obj
3211
yield self, self.readonly_section_class(None, cobj)
3212
for section_name in cobj.sections:
3214
self.readonly_section_class(section_name,
3215
cobj[section_name]))
3217
def get_mutable_section(self, section_id=None):
3218
# We need a loaded store
3221
except errors.NoSuchFile:
3222
# The file doesn't exist, let's pretend it was empty
3223
self._load_from_string('')
3224
if section_id in self.dirty_sections:
3225
# We already created a mutable section for this id
3226
return self.dirty_sections[section_id]
3227
if section_id is None:
3228
section = self._config_obj
3230
section = self._config_obj.setdefault(section_id, {})
3231
mutable_section = self.mutable_section_class(section_id, section)
3232
# All mutable sections can become dirty
3233
self.dirty_sections[section_id] = mutable_section
3234
return mutable_section
3236
def quote(self, value):
3238
# configobj conflates automagical list values and quoting
3239
self._config_obj.list_values = True
3240
return self._config_obj._quote(value)
3242
self._config_obj.list_values = False
3244
def unquote(self, value):
3245
if value and isinstance(value, string_types):
3246
# _unquote doesn't handle None nor empty strings nor anything that
3247
# is not a string, really.
3248
value = self._config_obj._unquote(value)
3251
def external_url(self):
3252
# Since an IniFileStore can be used without a file (at least in tests),
3253
# it's better to provide something than raising a NotImplementedError.
3254
# All daughter classes are supposed to provide an implementation
3256
return 'In-Process Store, no URL'
3259
class TransportIniFileStore(IniFileStore):
3260
"""IniFileStore that loads files from a transport.
3262
:ivar transport: The transport object where the config file is located.
3264
:ivar file_name: The config file basename in the transport directory.
3267
def __init__(self, transport, file_name):
3268
"""A Store using a ini file on a Transport
3270
:param transport: The transport object where the config file is located.
3271
:param file_name: The config file basename in the transport directory.
3273
super(TransportIniFileStore, self).__init__()
3274
self.transport = transport
3275
self.file_name = file_name
3277
def _load_content(self):
3279
return self.transport.get_bytes(self.file_name)
3280
except errors.PermissionDenied:
3281
trace.warning("Permission denied while trying to load "
3282
"configuration store %s.", self.external_url())
3285
def _save_content(self, content):
3286
self.transport.put_bytes(self.file_name, content)
3288
def external_url(self):
3289
# FIXME: external_url should really accepts an optional relpath
3290
# parameter (bug #750169) :-/ -- vila 2011-04-04
3291
# The following will do in the interim but maybe we don't want to
3292
# expose a path here but rather a config ID and its associated
3293
# object </hand wawe>.
3294
return urlutils.join(
3295
self.transport.external_url(), urlutils.escape(self.file_name))
3298
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3299
# unlockable stores for use with objects that can already ensure the locking
3300
# (think branches). If different stores (not based on ConfigObj) are created,
3301
# they may face the same issue.
3304
class LockableIniFileStore(TransportIniFileStore):
3305
"""A ConfigObjStore using locks on save to ensure store integrity."""
3307
def __init__(self, transport, file_name, lock_dir_name=None):
3308
"""A config Store using ConfigObj for storage.
3310
:param transport: The transport object where the config file is located.
3312
:param file_name: The config file basename in the transport directory.
3314
if lock_dir_name is None:
3315
lock_dir_name = 'lock'
3316
self.lock_dir_name = lock_dir_name
3317
super(LockableIniFileStore, self).__init__(transport, file_name)
3318
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3320
def lock_write(self, token=None):
3321
"""Takes a write lock in the directory containing the config file.
3323
If the directory doesn't exist it is created.
3325
# FIXME: This doesn't check the ownership of the created directories as
3326
# ensure_config_dir_exists does. It should if the transport is local
3327
# -- vila 2011-04-06
3328
self.transport.create_prefix()
3329
return self._lock.lock_write(token)
3334
def break_lock(self):
3335
self._lock.break_lock()
3339
# We need to be able to override the undecorated implementation
3340
self.save_without_locking()
3342
def save_without_locking(self):
3343
super(LockableIniFileStore, self).save()
3346
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3347
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3348
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3350
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3351
# functions or a registry will make it easier and clearer for tests, focusing
3352
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3353
# on a poolie's remark)
3354
class GlobalStore(LockableIniFileStore):
3355
"""A config store for global options.
3357
There is a single GlobalStore for a given process.
3360
def __init__(self, possible_transports=None):
3361
t = transport.get_transport_from_path(
3362
config_dir(), possible_transports=possible_transports)
3363
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3367
class LocationStore(LockableIniFileStore):
3368
"""A config store for options specific to a location.
3370
There is a single LocationStore for a given process.
3373
def __init__(self, possible_transports=None):
3374
t = transport.get_transport_from_path(
3375
config_dir(), possible_transports=possible_transports)
3376
super(LocationStore, self).__init__(t, 'locations.conf')
3377
self.id = 'locations'
3380
class BranchStore(TransportIniFileStore):
3381
"""A config store for branch options.
3383
There is a single BranchStore for a given branch.
3386
def __init__(self, branch):
3387
super(BranchStore, self).__init__(branch.control_transport,
3389
self.branch = branch
3393
class ControlStore(LockableIniFileStore):
3395
def __init__(self, bzrdir):
3396
super(ControlStore, self).__init__(bzrdir.transport,
3398
lock_dir_name='branch_lock')
3402
class SectionMatcher(object):
3403
"""Select sections into a given Store.
3405
This is intended to be used to postpone getting an iterable of sections
3409
def __init__(self, store):
3412
def get_sections(self):
3413
# This is where we require loading the store so we can see all defined
3415
sections = self.store.get_sections()
3416
# Walk the revisions in the order provided
3417
for store, s in sections:
3421
def match(self, section):
3422
"""Does the proposed section match.
3424
:param section: A Section object.
3426
:returns: True if the section matches, False otherwise.
3428
raise NotImplementedError(self.match)
3431
class NameMatcher(SectionMatcher):
3433
def __init__(self, store, section_id):
3434
super(NameMatcher, self).__init__(store)
3435
self.section_id = section_id
3437
def match(self, section):
3438
return section.id == self.section_id
3441
class LocationSection(Section):
3443
def __init__(self, section, extra_path, branch_name=None):
3444
super(LocationSection, self).__init__(section.id, section.options)
3445
self.extra_path = extra_path
3446
if branch_name is None:
3448
self.locals = {'relpath': extra_path,
3449
'basename': urlutils.basename(extra_path),
3450
'branchname': branch_name}
3452
def get(self, name, default=None, expand=True):
3453
value = super(LocationSection, self).get(name, default)
3454
if value is not None and expand:
3455
policy_name = self.get(name + ':policy', None)
3456
policy = _policy_value.get(policy_name, POLICY_NONE)
3457
if policy == POLICY_APPENDPATH:
3458
value = urlutils.join(value, self.extra_path)
3459
# expand section local options right now (since POLICY_APPENDPATH
3460
# will never add options references, it's ok to expand after it).
3462
for is_ref, chunk in iter_option_refs(value):
3464
chunks.append(chunk)
3467
if ref in self.locals:
3468
chunks.append(self.locals[ref])
3470
chunks.append(chunk)
3471
value = ''.join(chunks)
3475
class StartingPathMatcher(SectionMatcher):
3476
"""Select sections for a given location respecting the Store order."""
3478
# FIXME: Both local paths and urls can be used for section names as well as
3479
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3480
# inherited the fuzziness from the previous ``LocationConfig``
3481
# implementation. We probably need to revisit which encoding is allowed for
3482
# both ``location`` and section names and how we normalize
3483
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3484
# related too. -- vila 2012-01-04
3486
def __init__(self, store, location):
3487
super(StartingPathMatcher, self).__init__(store)
3488
if location.startswith('file://'):
3489
location = urlutils.local_path_from_url(location)
3490
self.location = location
3492
def get_sections(self):
3493
"""Get all sections matching ``location`` in the store.
3495
The most generic sections are described first in the store, then more
3496
specific ones can be provided for reduced scopes.
3498
The returned section are therefore returned in the reversed order so
3499
the most specific ones can be found first.
3501
location_parts = self.location.rstrip('/').split('/')
3503
# Later sections are more specific, they should be returned first
3504
for _, section in reversed(list(store.get_sections())):
3505
if section.id is None:
3506
# The no-name section is always included if present
3507
yield store, LocationSection(section, self.location)
3509
section_path = section.id
3510
if section_path.startswith('file://'):
3511
# the location is already a local path or URL, convert the
3512
# section id to the same format
3513
section_path = urlutils.local_path_from_url(section_path)
3514
if (self.location.startswith(section_path)
3515
or fnmatch.fnmatch(self.location, section_path)):
3516
section_parts = section_path.rstrip('/').split('/')
3517
extra_path = '/'.join(location_parts[len(section_parts):])
3518
yield store, LocationSection(section, extra_path)
3521
class LocationMatcher(SectionMatcher):
3523
def __init__(self, store, location):
3524
super(LocationMatcher, self).__init__(store)
3525
url, params = urlutils.split_segment_parameters(location)
3526
if location.startswith('file://'):
3527
location = urlutils.local_path_from_url(location)
3528
self.location = location
3529
branch_name = params.get('branch')
3530
if branch_name is None:
3531
self.branch_name = urlutils.basename(self.location)
3533
self.branch_name = urlutils.unescape(branch_name)
3535
def _get_matching_sections(self):
3536
"""Get all sections matching ``location``."""
3537
# We slightly diverge from LocalConfig here by allowing the no-name
3538
# section as the most generic one and the lower priority.
3539
no_name_section = None
3541
# Filter out the no_name_section so _iter_for_location_by_parts can be
3542
# used (it assumes all sections have a name).
3543
for _, section in self.store.get_sections():
3544
if section.id is None:
3545
no_name_section = section
3547
all_sections.append(section)
3548
# Unfortunately _iter_for_location_by_parts deals with section names so
3549
# we have to resync.
3550
filtered_sections = _iter_for_location_by_parts(
3551
[s.id for s in all_sections], self.location)
3552
iter_all_sections = iter(all_sections)
3553
matching_sections = []
3554
if no_name_section is not None:
3555
matching_sections.append(
3556
(0, LocationSection(no_name_section, self.location)))
3557
for section_id, extra_path, length in filtered_sections:
3558
# a section id is unique for a given store so it's safe to take the
3559
# first matching section while iterating. Also, all filtered
3560
# sections are part of 'all_sections' and will always be found
3563
section = next(iter_all_sections)
3564
if section_id == section.id:
3565
section = LocationSection(section, extra_path,
3567
matching_sections.append((length, section))
3569
return matching_sections
3571
def get_sections(self):
3572
# Override the default implementation as we want to change the order
3573
# We want the longest (aka more specific) locations first
3574
sections = sorted(self._get_matching_sections(),
3575
key=lambda match: (match[0], match[1].id),
3577
# Sections mentioning 'ignore_parents' restrict the selection
3578
for _, section in sections:
3579
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3580
ignore = section.get('ignore_parents', None)
3581
if ignore is not None:
3582
ignore = ui.bool_from_string(ignore)
3585
# Finally, we have a valid section
3586
yield self.store, section
3589
# FIXME: _shared_stores should be an attribute of a library state once a
3590
# library_state object is always available.
3592
_shared_stores_at_exit_installed = False
3594
class Stack(object):
3595
"""A stack of configurations where an option can be defined"""
3597
def __init__(self, sections_def, store=None, mutable_section_id=None):
3598
"""Creates a stack of sections with an optional store for changes.
3600
:param sections_def: A list of Section or callables that returns an
3601
iterable of Section. This defines the Sections for the Stack and
3602
can be called repeatedly if needed.
3604
:param store: The optional Store where modifications will be
3605
recorded. If none is specified, no modifications can be done.
3607
:param mutable_section_id: The id of the MutableSection where changes
3608
are recorded. This requires the ``store`` parameter to be
3611
self.sections_def = sections_def
3613
self.mutable_section_id = mutable_section_id
3615
def iter_sections(self):
3616
"""Iterate all the defined sections."""
3617
# Ensuring lazy loading is achieved by delaying section matching (which
3618
# implies querying the persistent storage) until it can't be avoided
3619
# anymore by using callables to describe (possibly empty) section
3621
for sections in self.sections_def:
3622
for store, section in sections():
3623
yield store, section
3625
def get(self, name, expand=True, convert=True):
3626
"""Return the *first* option value found in the sections.
3628
This is where we guarantee that sections coming from Store are loaded
3629
lazily: the loading is delayed until we need to either check that an
3630
option exists or get its value, which in turn may require to discover
3631
in which sections it can be defined. Both of these (section and option
3632
existence) require loading the store (even partially).
3634
:param name: The queried option.
3636
:param expand: Whether options references should be expanded.
3638
:param convert: Whether the option value should be converted from
3639
unicode (do nothing for non-registered options).
3641
:returns: The value of the option.
3643
# FIXME: No caching of options nor sections yet -- vila 20110503
3645
found_store = None # Where the option value has been found
3646
# If the option is registered, it may provide additional info about
3649
opt = option_registry.get(name)
3654
def expand_and_convert(val):
3655
# This may need to be called in different contexts if the value is
3656
# None or ends up being None during expansion or conversion.
3659
if isinstance(val, string_types):
3660
val = self._expand_options_in_string(val)
3662
trace.warning('Cannot expand "%s":'
3663
' %s does not support option expansion'
3664
% (name, type(val)))
3666
val = found_store.unquote(val)
3668
val = opt.convert_from_unicode(found_store, val)
3671
# First of all, check if the environment can override the configuration
3673
if opt is not None and opt.override_from_env:
3674
value = opt.get_override()
3675
value = expand_and_convert(value)
3677
for store, section in self.iter_sections():
3678
value = section.get(name)
3679
if value is not None:
3682
value = expand_and_convert(value)
3683
if opt is not None and value is None:
3684
# If the option is registered, it may provide a default value
3685
value = opt.get_default()
3686
value = expand_and_convert(value)
3687
for hook in ConfigHooks['get']:
3688
hook(self, name, value)
3691
def expand_options(self, string, env=None):
3692
"""Expand option references in the string in the configuration context.
3694
:param string: The string containing option(s) to expand.
3696
:param env: An option dict defining additional configuration options or
3697
overriding existing ones.
3699
:returns: The expanded string.
3701
return self._expand_options_in_string(string, env)
3703
def _expand_options_in_string(self, string, env=None, _refs=None):
3704
"""Expand options in the string in the configuration context.
3706
:param string: The string to be expanded.
3708
:param env: An option dict defining additional configuration options or
3709
overriding existing ones.
3711
:param _refs: Private list (FIFO) containing the options being expanded
3714
:returns: The expanded string.
3717
# Not much to expand there
3720
# What references are currently resolved (to detect loops)
3723
# We need to iterate until no more refs appear ({{foo}} will need two
3724
# iterations for example).
3729
for is_ref, chunk in iter_option_refs(result):
3731
chunks.append(chunk)
3736
raise errors.OptionExpansionLoop(string, _refs)
3738
value = self._expand_option(name, env, _refs)
3740
raise errors.ExpandingUnknownOption(name, string)
3741
chunks.append(value)
3743
result = ''.join(chunks)
3746
def _expand_option(self, name, env, _refs):
3747
if env is not None and name in env:
3748
# Special case, values provided in env takes precedence over
3752
value = self.get(name, expand=False, convert=False)
3753
value = self._expand_options_in_string(value, env, _refs)
3756
def _get_mutable_section(self):
3757
"""Get the MutableSection for the Stack.
3759
This is where we guarantee that the mutable section is lazily loaded:
3760
this means we won't load the corresponding store before setting a value
3761
or deleting an option. In practice the store will often be loaded but
3762
this helps catching some programming errors.
3765
section = store.get_mutable_section(self.mutable_section_id)
3766
return store, section
3768
def set(self, name, value):
3769
"""Set a new value for the option."""
3770
store, section = self._get_mutable_section()
3771
section.set(name, store.quote(value))
3772
for hook in ConfigHooks['set']:
3773
hook(self, name, value)
3775
def remove(self, name):
3776
"""Remove an existing option."""
3777
_, section = self._get_mutable_section()
3778
section.remove(name)
3779
for hook in ConfigHooks['remove']:
3783
# Mostly for debugging use
3784
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3786
def _get_overrides(self):
3787
# FIXME: Hack around library_state.initialize never called
3788
if breezy.global_state is not None:
3789
return breezy.global_state.cmdline_overrides.get_sections()
3792
def get_shared_store(self, store, state=None):
3793
"""Get a known shared store.
3795
Store urls uniquely identify them and are used to ensure a single copy
3796
is shared across all users.
3798
:param store: The store known to the caller.
3800
:param state: The library state where the known stores are kept.
3802
:returns: The store received if it's not a known one, an already known
3806
state = breezy.global_state
3808
global _shared_stores_at_exit_installed
3809
stores = _shared_stores
3810
def save_config_changes():
3811
for k, store in stores.items():
3812
store.save_changes()
3813
if not _shared_stores_at_exit_installed:
3814
# FIXME: Ugly hack waiting for library_state to always be
3815
# available. -- vila 20120731
3817
atexit.register(save_config_changes)
3818
_shared_stores_at_exit_installed = True
3820
stores = state.config_stores
3821
url = store.external_url()
3829
class MemoryStack(Stack):
3830
"""A configuration stack defined from a string.
3832
This is mainly intended for tests and requires no disk resources.
3835
def __init__(self, content=None):
3836
"""Create an in-memory stack from a given content.
3838
It uses a single store based on configobj and support reading and
3841
:param content: The initial content of the store. If None, the store is
3842
not loaded and ``_load_from_string`` can and should be used if
3845
store = IniFileStore()
3846
if content is not None:
3847
store._load_from_string(content)
3848
super(MemoryStack, self).__init__(
3849
[store.get_sections], store)
3852
class _CompatibleStack(Stack):
3853
"""Place holder for compatibility with previous design.
3855
This is intended to ease the transition from the Config-based design to the
3856
Stack-based design and should not be used nor relied upon by plugins.
3858
One assumption made here is that the daughter classes will all use Stores
3859
derived from LockableIniFileStore).
3861
It implements set() and remove () by re-loading the store before applying
3862
the modification and saving it.
3864
The long term plan being to implement a single write by store to save
3865
all modifications, this class should not be used in the interim.
3868
def set(self, name, value):
3871
super(_CompatibleStack, self).set(name, value)
3872
# Force a write to persistent storage
3875
def remove(self, name):
3878
super(_CompatibleStack, self).remove(name)
3879
# Force a write to persistent storage
3883
class GlobalStack(Stack):
3884
"""Global options only stack.
3886
The following sections are queried:
3888
* command-line overrides,
3890
* the 'DEFAULT' section in bazaar.conf
3892
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3897
gstore = self.get_shared_store(GlobalStore())
3898
super(GlobalStack, self).__init__(
3899
[self._get_overrides,
3900
NameMatcher(gstore, 'DEFAULT').get_sections],
3901
gstore, mutable_section_id='DEFAULT')
3904
class LocationStack(Stack):
3905
"""Per-location options falling back to global options stack.
3908
The following sections are queried:
3910
* command-line overrides,
3912
* the sections matching ``location`` in ``locations.conf``, the order being
3913
defined by the number of path components in the section glob, higher
3914
numbers first (from most specific section to most generic).
3916
* the 'DEFAULT' section in bazaar.conf
3918
This stack will use the ``location`` section in locations.conf as its
3922
def __init__(self, location):
3923
"""Make a new stack for a location and global configuration.
3925
:param location: A URL prefix to """
3926
lstore = self.get_shared_store(LocationStore())
3927
if location.startswith('file://'):
3928
location = urlutils.local_path_from_url(location)
3929
gstore = self.get_shared_store(GlobalStore())
3930
super(LocationStack, self).__init__(
3931
[self._get_overrides,
3932
LocationMatcher(lstore, location).get_sections,
3933
NameMatcher(gstore, 'DEFAULT').get_sections],
3934
lstore, mutable_section_id=location)
3937
class BranchStack(Stack):
3938
"""Per-location options falling back to branch then global options stack.
3940
The following sections are queried:
3942
* command-line overrides,
3944
* the sections matching ``location`` in ``locations.conf``, the order being
3945
defined by the number of path components in the section glob, higher
3946
numbers first (from most specific section to most generic),
3948
* the no-name section in branch.conf,
3950
* the ``DEFAULT`` section in ``bazaar.conf``.
3952
This stack will use the no-name section in ``branch.conf`` as its
3956
def __init__(self, branch):
3957
lstore = self.get_shared_store(LocationStore())
3958
bstore = branch._get_config_store()
3959
gstore = self.get_shared_store(GlobalStore())
3960
super(BranchStack, self).__init__(
3961
[self._get_overrides,
3962
LocationMatcher(lstore, branch.base).get_sections,
3963
NameMatcher(bstore, None).get_sections,
3964
NameMatcher(gstore, 'DEFAULT').get_sections],
3966
self.branch = branch
3968
def lock_write(self, token=None):
3969
return self.branch.lock_write(token)
3972
return self.branch.unlock()
3975
def set(self, name, value):
3976
super(BranchStack, self).set(name, value)
3977
# Unlocking the branch will trigger a store.save_changes() so the last
3978
# unlock saves all the changes.
3981
def remove(self, name):
3982
super(BranchStack, self).remove(name)
3983
# Unlocking the branch will trigger a store.save_changes() so the last
3984
# unlock saves all the changes.
3987
class RemoteControlStack(Stack):
3988
"""Remote control-only options stack."""
3990
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3991
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3992
# control.conf and is used only for stack options.
3994
def __init__(self, bzrdir):
3995
cstore = bzrdir._get_config_store()
3996
super(RemoteControlStack, self).__init__(
3997
[NameMatcher(cstore, None).get_sections],
3999
self.controldir = bzrdir
4002
class BranchOnlyStack(Stack):
4003
"""Branch-only options stack."""
4005
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4006
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4007
# -- vila 2011-12-16
4009
def __init__(self, branch):
4010
bstore = branch._get_config_store()
4011
super(BranchOnlyStack, self).__init__(
4012
[NameMatcher(bstore, None).get_sections],
4014
self.branch = branch
4016
def lock_write(self, token=None):
4017
return self.branch.lock_write(token)
4020
return self.branch.unlock()
4023
def set(self, name, value):
4024
super(BranchOnlyStack, self).set(name, value)
4025
# Force a write to persistent storage
4026
self.store.save_changes()
4029
def remove(self, name):
4030
super(BranchOnlyStack, self).remove(name)
4031
# Force a write to persistent storage
4032
self.store.save_changes()
4035
class cmd_config(commands.Command):
4036
__doc__ = """Display, set or remove a configuration option.
4038
Display the active value for option NAME.
4040
If --all is specified, NAME is interpreted as a regular expression and all
4041
matching options are displayed mentioning their scope and without resolving
4042
option references in the value). The active value that bzr will take into
4043
account is the first one displayed for each option.
4045
If NAME is not given, --all .* is implied (all options are displayed for the
4048
Setting a value is achieved by using NAME=value without spaces. The value
4049
is set in the most relevant scope and can be checked by displaying the
4052
Removing a value is achieved by using --remove NAME.
4055
takes_args = ['name?']
4059
# FIXME: This should be a registry option so that plugins can register
4060
# their own config files (or not) and will also address
4061
# http://pad.lv/788991 -- vila 20101115
4062
commands.Option('scope', help='Reduce the scope to the specified'
4063
' configuration file.',
4065
commands.Option('all',
4066
help='Display all the defined values for the matching options.',
4068
commands.Option('remove', help='Remove the option from'
4069
' the configuration file.'),
4072
_see_also = ['configuration']
4074
@commands.display_command
4075
def run(self, name=None, all=False, directory=None, scope=None,
4077
if directory is None:
4079
directory = directory_service.directories.dereference(directory)
4080
directory = urlutils.normalize_url(directory)
4082
raise errors.BzrError(
4083
'--all and --remove are mutually exclusive.')
4085
# Delete the option in the given scope
4086
self._remove_config_option(name, directory, scope)
4088
# Defaults to all options
4089
self._show_matching_options('.*', directory, scope)
4092
name, value = name.split('=', 1)
4094
# Display the option(s) value(s)
4096
self._show_matching_options(name, directory, scope)
4098
self._show_value(name, directory, scope)
4101
raise errors.BzrError(
4102
'Only one option can be set.')
4103
# Set the option value
4104
self._set_config_option(name, value, directory, scope)
4106
def _get_stack(self, directory, scope=None, write_access=False):
4107
"""Get the configuration stack specified by ``directory`` and ``scope``.
4109
:param directory: Where the configurations are derived from.
4111
:param scope: A specific config to start from.
4113
:param write_access: Whether a write access to the stack will be
4116
# FIXME: scope should allow access to plugin-specific stacks (even
4117
# reduced to the plugin-specific store), related to
4118
# http://pad.lv/788991 -- vila 2011-11-15
4119
if scope is not None:
4120
if scope == 'bazaar':
4121
return GlobalStack()
4122
elif scope == 'locations':
4123
return LocationStack(directory)
4124
elif scope == 'branch':
4126
controldir.ControlDir.open_containing_tree_or_branch(
4129
self.add_cleanup(br.lock_write().unlock)
4130
return br.get_config_stack()
4131
raise errors.NoSuchConfig(scope)
4135
controldir.ControlDir.open_containing_tree_or_branch(
4138
self.add_cleanup(br.lock_write().unlock)
4139
return br.get_config_stack()
4140
except errors.NotBranchError:
4141
return LocationStack(directory)
4143
def _quote_multiline(self, value):
4145
value = '"""' + value + '"""'
4148
def _show_value(self, name, directory, scope):
4149
conf = self._get_stack(directory, scope)
4150
value = conf.get(name, expand=True, convert=False)
4151
if value is not None:
4152
# Quote the value appropriately
4153
value = self._quote_multiline(value)
4154
self.outf.write('%s\n' % (value,))
4156
raise errors.NoSuchConfigOption(name)
4158
def _show_matching_options(self, name, directory, scope):
4159
name = lazy_regex.lazy_compile(name)
4160
# We want any error in the regexp to be raised *now* so we need to
4161
# avoid the delay introduced by the lazy regexp. But, we still do
4162
# want the nicer errors raised by lazy_regex.
4163
name._compile_and_collapse()
4166
conf = self._get_stack(directory, scope)
4167
for store, section in conf.iter_sections():
4168
for oname in section.iter_option_names():
4169
if name.search(oname):
4170
if cur_store_id != store.id:
4171
# Explain where the options are defined
4172
self.outf.write('%s:\n' % (store.id,))
4173
cur_store_id = store.id
4175
if (section.id is not None and cur_section != section.id):
4176
# Display the section id as it appears in the store
4177
# (None doesn't appear by definition)
4178
self.outf.write(' [%s]\n' % (section.id,))
4179
cur_section = section.id
4180
value = section.get(oname, expand=False)
4181
# Quote the value appropriately
4182
value = self._quote_multiline(value)
4183
self.outf.write(' %s = %s\n' % (oname, value))
4185
def _set_config_option(self, name, value, directory, scope):
4186
conf = self._get_stack(directory, scope, write_access=True)
4187
conf.set(name, value)
4188
# Explicitly save the changes
4189
conf.store.save_changes()
4191
def _remove_config_option(self, name, directory, scope):
4193
raise errors.BzrCommandError(
4194
'--remove expects an option to remove.')
4195
conf = self._get_stack(directory, scope, write_access=True)
4198
# Explicitly save the changes
4199
conf.store.save_changes()
4201
raise errors.NoSuchConfigOption(name)
4206
# We need adapters that can build a Store or a Stack in a test context. Test
4207
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4208
# themselves. The builder will receive a test instance and should return a
4209
# ready-to-use store or stack. Plugins that define new store/stacks can also
4210
# register themselves here to be tested against the tests defined in
4211
# breezy.tests.test_config. Note that the builder can be called multiple times
4212
# for the same test.
4214
# The registered object should be a callable receiving a test instance
4215
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4217
test_store_builder_registry = registry.Registry()
4219
# The registered object should be a callable receiving a test instance
4220
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4222
test_stack_builder_registry = registry.Registry()