1508
2141
configobj[name] = value
1510
2143
configobj.setdefault(section, {})[name] = value
2144
for hook in OldConfigHooks['set']:
2145
hook(self, name, value)
2146
self._set_configobj(configobj)
2148
def remove_option(self, option_name, section_name=None):
2149
configobj = self._get_configobj()
2150
if section_name is None:
2151
del configobj[option_name]
2153
del configobj[section_name][option_name]
2154
for hook in OldConfigHooks['remove']:
2155
hook(self, option_name)
1511
2156
self._set_configobj(configobj)
1513
2158
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2160
f = BytesIO(self._transport.get_bytes(self._filename))
2161
for hook in OldConfigHooks['load']:
1516
2164
except errors.NoSuchFile:
2166
except errors.PermissionDenied as e:
2167
trace.warning("Permission denied while trying to open "
2168
"configuration file %s.", urlutils.unescape_for_display(
2169
urlutils.join(self._transport.base, self._filename), "utf-8"))
2172
def _external_url(self):
2173
return urlutils.join(self._transport.external_url(), self._filename)
1519
2175
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2176
f = self._get_config_file()
2179
conf = ConfigObj(f, encoding='utf-8')
2180
except configobj.ConfigObjError as e:
2181
raise errors.ParseConfigError(e.errors, self._external_url())
2182
except UnicodeDecodeError:
2183
raise errors.ConfigContentError(self._external_url())
1522
2188
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2189
out_file = BytesIO()
1524
2190
configobj.write(out_file)
1525
2191
out_file.seek(0)
1526
2192
self._transport.put_file(self._filename, out_file)
2193
for hook in OldConfigHooks['save']:
2197
class Option(object):
2198
"""An option definition.
2200
The option *values* are stored in config files and found in sections.
2202
Here we define various properties about the option itself, its default
2203
value, how to convert it from stores, what to do when invalid values are
2204
encoutered, in which config files it can be stored.
2207
def __init__(self, name, override_from_env=None,
2208
default=None, default_from_env=None,
2209
help=None, from_unicode=None, invalid=None, unquote=True):
2210
"""Build an option definition.
2212
:param name: the name used to refer to the option.
2214
:param override_from_env: A list of environment variables which can
2215
provide override any configuration setting.
2217
:param default: the default value to use when none exist in the config
2218
stores. This is either a string that ``from_unicode`` will convert
2219
into the proper type, a callable returning a unicode string so that
2220
``from_unicode`` can be used on the return value, or a python
2221
object that can be stringified (so only the empty list is supported
2224
:param default_from_env: A list of environment variables which can
2225
provide a default value. 'default' will be used only if none of the
2226
variables specified here are set in the environment.
2228
:param help: a doc string to explain the option to the user.
2230
:param from_unicode: a callable to convert the unicode string
2231
representing the option value in a store or its default value.
2233
:param invalid: the action to be taken when an invalid value is
2234
encountered in a store. This is called only when from_unicode is
2235
invoked to convert a string and returns None or raise ValueError or
2236
TypeError. Accepted values are: None (ignore invalid values),
2237
'warning' (emit a warning), 'error' (emit an error message and
2240
:param unquote: should the unicode value be unquoted before conversion.
2241
This should be used only when the store providing the values cannot
2242
safely unquote them (see http://pad.lv/906897). It is provided so
2243
daughter classes can handle the quoting themselves.
2245
if override_from_env is None:
2246
override_from_env = []
2247
if default_from_env is None:
2248
default_from_env = []
2250
self.override_from_env = override_from_env
2251
# Convert the default value to a unicode string so all values are
2252
# strings internally before conversion (via from_unicode) is attempted.
2255
elif isinstance(default, list):
2256
# Only the empty list is supported
2258
raise AssertionError(
2259
'Only empty lists are supported as default values')
2261
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2262
# Rely on python to convert strings, booleans and integers
2263
self.default = u'%s' % (default,)
2264
elif callable(default):
2265
self.default = default
2267
# other python objects are not expected
2268
raise AssertionError('%r is not supported as a default value'
2270
self.default_from_env = default_from_env
2272
self.from_unicode = from_unicode
2273
self.unquote = unquote
2274
if invalid and invalid not in ('warning', 'error'):
2275
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2276
self.invalid = invalid
2282
def convert_from_unicode(self, store, unicode_value):
2283
if self.unquote and store is not None and unicode_value is not None:
2284
unicode_value = store.unquote(unicode_value)
2285
if self.from_unicode is None or unicode_value is None:
2286
# Don't convert or nothing to convert
2287
return unicode_value
2289
converted = self.from_unicode(unicode_value)
2290
except (ValueError, TypeError):
2291
# Invalid values are ignored
2293
if converted is None and self.invalid is not None:
2294
# The conversion failed
2295
if self.invalid == 'warning':
2296
trace.warning('Value "%s" is not valid for "%s"',
2297
unicode_value, self.name)
2298
elif self.invalid == 'error':
2299
raise errors.ConfigOptionValueError(self.name, unicode_value)
2302
def get_override(self):
2304
for var in self.override_from_env:
2306
# If the env variable is defined, its value takes precedence
2307
value = os.environ[var].decode(osutils.get_user_encoding())
2313
def get_default(self):
2315
for var in self.default_from_env:
2317
# If the env variable is defined, its value is the default one
2318
value = os.environ[var].decode(osutils.get_user_encoding())
2323
# Otherwise, fallback to the value defined at registration
2324
if callable(self.default):
2325
value = self.default()
2326
if not isinstance(value, text_type):
2327
raise AssertionError(
2328
"Callable default value for '%s' should be unicode"
2331
value = self.default
2334
def get_help_topic(self):
2337
def get_help_text(self, additional_see_also=None, plain=True):
2339
from breezy import help_topics
2340
result += help_topics._format_see_also(additional_see_also)
2342
result = help_topics.help_as_plain_text(result)
2346
# Predefined converters to get proper values from store
2348
def bool_from_store(unicode_str):
2349
return ui.bool_from_string(unicode_str)
2352
def int_from_store(unicode_str):
2353
return int(unicode_str)
2356
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2358
def int_SI_from_store(unicode_str):
2359
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2361
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2362
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2365
:return Integer, expanded to its base-10 value if a proper SI unit is
2366
found, None otherwise.
2368
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2369
p = re.compile(regexp, re.IGNORECASE)
2370
m = p.match(unicode_str)
2373
val, _, unit = m.groups()
2377
coeff = _unit_suffixes[unit.upper()]
2379
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2384
def float_from_store(unicode_str):
2385
return float(unicode_str)
2388
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2390
_list_converter_config = configobj.ConfigObj(
2391
{}, encoding='utf-8', list_values=True, interpolation=False)
2394
class ListOption(Option):
2396
def __init__(self, name, default=None, default_from_env=None,
2397
help=None, invalid=None):
2398
"""A list Option definition.
2400
This overrides the base class so the conversion from a unicode string
2401
can take quoting into account.
2403
super(ListOption, self).__init__(
2404
name, default=default, default_from_env=default_from_env,
2405
from_unicode=self.from_unicode, help=help,
2406
invalid=invalid, unquote=False)
2408
def from_unicode(self, unicode_str):
2409
if not isinstance(unicode_str, string_types):
2411
# Now inject our string directly as unicode. All callers got their
2412
# value from configobj, so values that need to be quoted are already
2414
_list_converter_config.reset()
2415
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2416
maybe_list = _list_converter_config['list']
2417
if isinstance(maybe_list, string_types):
2419
# A single value, most probably the user forgot (or didn't care
2420
# to add) the final ','
2423
# The empty string, convert to empty list
2426
# We rely on ConfigObj providing us with a list already
2431
class RegistryOption(Option):
2432
"""Option for a choice from a registry."""
2434
def __init__(self, name, registry, default_from_env=None,
2435
help=None, invalid=None):
2436
"""A registry based Option definition.
2438
This overrides the base class so the conversion from a unicode string
2439
can take quoting into account.
2441
super(RegistryOption, self).__init__(
2442
name, default=lambda: unicode(registry.default_key),
2443
default_from_env=default_from_env,
2444
from_unicode=self.from_unicode, help=help,
2445
invalid=invalid, unquote=False)
2446
self.registry = registry
2448
def from_unicode(self, unicode_str):
2449
if not isinstance(unicode_str, string_types):
2452
return self.registry.get(unicode_str)
2455
"Invalid value %s for %s."
2456
"See help for a list of possible values." % (unicode_str,
2461
ret = [self._help, "\n\nThe following values are supported:\n"]
2462
for key in self.registry.keys():
2463
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2467
_option_ref_re = lazy_regex.lazy_compile('({[^\d\W](?:\.\w|-\w|\w)*})')
2468
"""Describes an expandable option reference.
2470
We want to match the most embedded reference first.
2472
I.e. for '{{foo}}' we will get '{foo}',
2473
for '{bar{baz}}' we will get '{baz}'
2476
def iter_option_refs(string):
2477
# Split isolate refs so every other chunk is a ref
2479
for chunk in _option_ref_re.split(string):
2484
class OptionRegistry(registry.Registry):
2485
"""Register config options by their name.
2487
This overrides ``registry.Registry`` to simplify registration by acquiring
2488
some information from the option object itself.
2491
def _check_option_name(self, option_name):
2492
"""Ensures an option name is valid.
2494
:param option_name: The name to validate.
2496
if _option_ref_re.match('{%s}' % option_name) is None:
2497
raise errors.IllegalOptionName(option_name)
2499
def register(self, option):
2500
"""Register a new option to its name.
2502
:param option: The option to register. Its name is used as the key.
2504
self._check_option_name(option.name)
2505
super(OptionRegistry, self).register(option.name, option,
2508
def register_lazy(self, key, module_name, member_name):
2509
"""Register a new option to be loaded on request.
2511
:param key: the key to request the option later. Since the registration
2512
is lazy, it should be provided and match the option name.
2514
:param module_name: the python path to the module. Such as 'os.path'.
2516
:param member_name: the member of the module to return. If empty or
2517
None, get() will return the module itself.
2519
self._check_option_name(key)
2520
super(OptionRegistry, self).register_lazy(key,
2521
module_name, member_name)
2523
def get_help(self, key=None):
2524
"""Get the help text associated with the given key"""
2525
option = self.get(key)
2526
the_help = option.help
2527
if callable(the_help):
2528
return the_help(self, key)
2532
option_registry = OptionRegistry()
2535
# Registered options in lexicographical order
2537
option_registry.register(
2538
Option('append_revisions_only',
2539
default=None, from_unicode=bool_from_store, invalid='warning',
2541
Whether to only append revisions to the mainline.
2543
If this is set to true, then it is not possible to change the
2544
existing mainline of the branch.
2546
option_registry.register(
2547
ListOption('acceptable_keys',
2550
List of GPG key patterns which are acceptable for verification.
2552
option_registry.register(
2553
Option('add.maximum_file_size',
2554
default=u'20MB', from_unicode=int_SI_from_store,
2556
Size above which files should be added manually.
2558
Files below this size are added automatically when using ``bzr add`` without
2561
A negative value means disable the size check.
2563
option_registry.register(
2565
default=None, from_unicode=bool_from_store,
2567
Is the branch bound to ``bound_location``.
2569
If set to "True", the branch should act as a checkout, and push each commit to
2570
the bound_location. This option is normally set by ``bind``/``unbind``.
2572
See also: bound_location.
2574
option_registry.register(
2575
Option('bound_location',
2578
The location that commits should go to when acting as a checkout.
2580
This option is normally set by ``bind``.
2584
option_registry.register(
2585
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2587
Whether revisions associated with tags should be fetched.
2589
option_registry.register_lazy(
2590
'bzr.transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2591
option_registry.register(
2592
Option('bzr.workingtree.worth_saving_limit', default=10,
2593
from_unicode=int_from_store, invalid='warning',
2595
How many changes before saving the dirstate.
2597
-1 means that we will never rewrite the dirstate file for only
2598
stat-cache changes. Regardless of this setting, we will always rewrite
2599
the dirstate file if a file is added/removed/renamed/etc. This flag only
2600
affects the behavior of updating the dirstate file after we notice that
2601
a file has been touched.
2603
option_registry.register(
2604
Option('bugtracker', default=None,
2606
Default bug tracker to use.
2608
This bug tracker will be used for example when marking bugs
2609
as fixed using ``bzr commit --fixes``, if no explicit
2610
bug tracker was specified.
2612
option_registry.register(
2613
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2614
from_unicode=signature_policy_from_unicode,
2616
GPG checking policy.
2618
Possible values: require, ignore, check-available (default)
2620
this option will control whether bzr will require good gpg
2621
signatures, ignore them, or check them if they are
2624
option_registry.register(
2625
Option('child_submit_format',
2626
help='''The preferred format of submissions to this branch.'''))
2627
option_registry.register(
2628
Option('child_submit_to',
2629
help='''Where submissions to this branch are mailed to.'''))
2630
option_registry.register(
2631
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2632
from_unicode=signing_policy_from_unicode,
2636
Possible values: always, never, when-required (default)
2638
This option controls whether bzr will always create
2639
gpg signatures or not on commits.
2641
option_registry.register(
2642
Option('dirstate.fdatasync', default=True,
2643
from_unicode=bool_from_store,
2645
Flush dirstate changes onto physical disk?
2647
If true (default), working tree metadata changes are flushed through the
2648
OS buffers to physical disk. This is somewhat slower, but means data
2649
should not be lost if the machine crashes. See also repository.fdatasync.
2651
option_registry.register(
2652
ListOption('debug_flags', default=[],
2653
help='Debug flags to activate.'))
2654
option_registry.register(
2655
Option('default_format', default='2a',
2656
help='Format used when creating branches.'))
2657
option_registry.register(
2658
Option('dpush_strict', default=None,
2659
from_unicode=bool_from_store,
2661
The default value for ``dpush --strict``.
2663
If present, defines the ``--strict`` option default value for checking
2664
uncommitted changes before pushing into a different VCS without any
2665
custom bzr metadata.
2667
option_registry.register(
2669
help='The command called to launch an editor to enter a message.'))
2670
option_registry.register(
2671
Option('email', override_from_env=['BRZ_EMAIL'], default=default_email,
2672
help='The users identity'))
2673
option_registry.register(
2674
Option('gpg_signing_command',
2677
Program to use use for creating signatures.
2679
This should support at least the -u and --clearsign options.
2681
option_registry.register(
2682
Option('gpg_signing_key',
2685
GPG key to use for signing.
2687
This defaults to the first key associated with the users email.
2689
option_registry.register(
2690
Option('ignore_missing_extensions', default=False,
2691
from_unicode=bool_from_store,
2693
Control the missing extensions warning display.
2695
The warning will not be emitted if set to True.
2697
option_registry.register(
2699
help='Language to translate messages into.'))
2700
option_registry.register(
2701
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2703
Steal locks that appears to be dead.
2705
If set to True, bzr will check if a lock is supposed to be held by an
2706
active process from the same user on the same machine. If the user and
2707
machine match, but no process with the given PID is active, then bzr
2708
will automatically break the stale lock, and create a new lock for
2710
Otherwise, bzr will prompt as normal to break the lock.
2712
option_registry.register(
2713
Option('log_format', default='long',
2715
Log format to use when displaying revisions.
2717
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2718
may be provided by plugins.
2720
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2722
option_registry.register(
2723
Option('output_encoding',
2724
help= 'Unicode encoding for output'
2725
' (terminal encoding if not specified).'))
2726
option_registry.register(
2727
Option('parent_location',
2730
The location of the default branch for pull or merge.
2732
This option is normally set when creating a branch, the first ``pull`` or by
2733
``pull --remember``.
2735
option_registry.register(
2736
Option('post_commit', default=None,
2738
Post commit functions.
2740
An ordered list of python functions to call, separated by spaces.
2742
Each function takes branch, rev_id as parameters.
2744
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2746
option_registry.register(
2747
Option('public_branch',
2750
A publically-accessible version of this branch.
2752
This implies that the branch setting this option is not publically-accessible.
2753
Used and set by ``bzr send``.
2755
option_registry.register(
2756
Option('push_location',
2759
The location of the default branch for push.
2761
This option is normally set by the first ``push`` or ``push --remember``.
2763
option_registry.register(
2764
Option('push_strict', default=None,
2765
from_unicode=bool_from_store,
2767
The default value for ``push --strict``.
2769
If present, defines the ``--strict`` option default value for checking
2770
uncommitted changes before sending a merge directive.
2772
option_registry.register(
2773
Option('repository.fdatasync', default=True,
2774
from_unicode=bool_from_store,
2776
Flush repository changes onto physical disk?
2778
If true (default), repository changes are flushed through the OS buffers
2779
to physical disk. This is somewhat slower, but means data should not be
2780
lost if the machine crashes. See also dirstate.fdatasync.
2782
option_registry.register_lazy('smtp_server',
2783
'breezy.smtp_connection', 'smtp_server')
2784
option_registry.register_lazy('smtp_password',
2785
'breezy.smtp_connection', 'smtp_password')
2786
option_registry.register_lazy('smtp_username',
2787
'breezy.smtp_connection', 'smtp_username')
2788
option_registry.register(
2789
Option('selftest.timeout',
2791
from_unicode=int_from_store,
2792
help='Abort selftest if one test takes longer than this many seconds',
2795
option_registry.register(
2796
Option('send_strict', default=None,
2797
from_unicode=bool_from_store,
2799
The default value for ``send --strict``.
2801
If present, defines the ``--strict`` option default value for checking
2802
uncommitted changes before sending a bundle.
2805
option_registry.register(
2806
Option('serve.client_timeout',
2807
default=300.0, from_unicode=float_from_store,
2808
help="If we wait for a new request from a client for more than"
2809
" X seconds, consider the client idle, and hangup."))
2810
option_registry.register(
2811
Option('stacked_on_location',
2813
help="""The location where this branch is stacked on."""))
2814
option_registry.register(
2815
Option('submit_branch',
2818
The branch you intend to submit your current work to.
2820
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2821
by the ``submit:`` revision spec.
2823
option_registry.register(
2825
help='''Where submissions from this branch are mailed to.'''))
2826
option_registry.register(
2827
ListOption('suppress_warnings',
2829
help="List of warning classes to suppress."))
2830
option_registry.register(
2831
Option('validate_signatures_in_log', default=False,
2832
from_unicode=bool_from_store, invalid='warning',
2833
help='''Whether to validate signatures in brz log.'''))
2834
option_registry.register_lazy('ssl.ca_certs',
2835
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2837
option_registry.register_lazy('ssl.cert_reqs',
2838
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2841
class Section(object):
2842
"""A section defines a dict of option name => value.
2844
This is merely a read-only dict which can add some knowledge about the
2845
options. It is *not* a python dict object though and doesn't try to mimic
2849
def __init__(self, section_id, options):
2850
self.id = section_id
2851
# We re-use the dict-like object received
2852
self.options = options
2854
def get(self, name, default=None, expand=True):
2855
return self.options.get(name, default)
2857
def iter_option_names(self):
2858
for k in self.options.iterkeys():
2862
# Mostly for debugging use
2863
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2866
_NewlyCreatedOption = object()
2867
"""Was the option created during the MutableSection lifetime"""
2868
_DeletedOption = object()
2869
"""Was the option deleted during the MutableSection lifetime"""
2872
class MutableSection(Section):
2873
"""A section allowing changes and keeping track of the original values."""
2875
def __init__(self, section_id, options):
2876
super(MutableSection, self).__init__(section_id, options)
2877
self.reset_changes()
2879
def set(self, name, value):
2880
if name not in self.options:
2881
# This is a new option
2882
self.orig[name] = _NewlyCreatedOption
2883
elif name not in self.orig:
2884
self.orig[name] = self.get(name, None)
2885
self.options[name] = value
2887
def remove(self, name):
2888
if name not in self.orig and name in self.options:
2889
self.orig[name] = self.get(name, None)
2890
del self.options[name]
2892
def reset_changes(self):
2895
def apply_changes(self, dirty, store):
2896
"""Apply option value changes.
2898
``self`` has been reloaded from the persistent storage. ``dirty``
2899
contains the changes made since the previous loading.
2901
:param dirty: the mutable section containing the changes.
2903
:param store: the store containing the section
2905
for k, expected in dirty.orig.iteritems():
2906
actual = dirty.get(k, _DeletedOption)
2907
reloaded = self.get(k, _NewlyCreatedOption)
2908
if actual is _DeletedOption:
2909
if k in self.options:
2913
# Report concurrent updates in an ad-hoc way. This should only
2914
# occurs when different processes try to update the same option
2915
# which is not supported (as in: the config framework is not meant
2916
# to be used as a sharing mechanism).
2917
if expected != reloaded:
2918
if actual is _DeletedOption:
2919
actual = '<DELETED>'
2920
if reloaded is _NewlyCreatedOption:
2921
reloaded = '<CREATED>'
2922
if expected is _NewlyCreatedOption:
2923
expected = '<CREATED>'
2924
# Someone changed the value since we get it from the persistent
2926
trace.warning(gettext(
2927
"Option {0} in section {1} of {2} was changed"
2928
" from {3} to {4}. The {5} value will be saved.".format(
2929
k, self.id, store.external_url(), expected,
2931
# No need to keep track of these changes
2932
self.reset_changes()
2935
class Store(object):
2936
"""Abstract interface to persistent storage for configuration options."""
2938
readonly_section_class = Section
2939
mutable_section_class = MutableSection
2942
# Which sections need to be saved (by section id). We use a dict here
2943
# so the dirty sections can be shared by multiple callers.
2944
self.dirty_sections = {}
2946
def is_loaded(self):
2947
"""Returns True if the Store has been loaded.
2949
This is used to implement lazy loading and ensure the persistent
2950
storage is queried only when needed.
2952
raise NotImplementedError(self.is_loaded)
2955
"""Loads the Store from persistent storage."""
2956
raise NotImplementedError(self.load)
2958
def _load_from_string(self, bytes):
2959
"""Create a store from a string in configobj syntax.
2961
:param bytes: A string representing the file content.
2963
raise NotImplementedError(self._load_from_string)
2966
"""Unloads the Store.
2968
This should make is_loaded() return False. This is used when the caller
2969
knows that the persistent storage has changed or may have change since
2972
raise NotImplementedError(self.unload)
2974
def quote(self, value):
2975
"""Quote a configuration option value for storing purposes.
2977
This allows Stacks to present values as they will be stored.
2981
def unquote(self, value):
2982
"""Unquote a configuration option value into unicode.
2984
The received value is quoted as stored.
2989
"""Saves the Store to persistent storage."""
2990
raise NotImplementedError(self.save)
2992
def _need_saving(self):
2993
for s in self.dirty_sections.values():
2995
# At least one dirty section contains a modification
2999
def apply_changes(self, dirty_sections):
3000
"""Apply changes from dirty sections while checking for coherency.
3002
The Store content is discarded and reloaded from persistent storage to
3003
acquire up-to-date values.
3005
Dirty sections are MutableSection which kept track of the value they
3006
are expected to update.
3008
# We need an up-to-date version from the persistent storage, unload the
3009
# store. The reload will occur when needed (triggered by the first
3010
# get_mutable_section() call below.
3012
# Apply the changes from the preserved dirty sections
3013
for section_id, dirty in dirty_sections.iteritems():
3014
clean = self.get_mutable_section(section_id)
3015
clean.apply_changes(dirty, self)
3016
# Everything is clean now
3017
self.dirty_sections = {}
3019
def save_changes(self):
3020
"""Saves the Store to persistent storage if changes occurred.
3022
Apply the changes recorded in the mutable sections to a store content
3023
refreshed from persistent storage.
3025
raise NotImplementedError(self.save_changes)
3027
def external_url(self):
3028
raise NotImplementedError(self.external_url)
3030
def get_sections(self):
3031
"""Returns an ordered iterable of existing sections.
3033
:returns: An iterable of (store, section).
3035
raise NotImplementedError(self.get_sections)
3037
def get_mutable_section(self, section_id=None):
3038
"""Returns the specified mutable section.
3040
:param section_id: The section identifier
3042
raise NotImplementedError(self.get_mutable_section)
3045
# Mostly for debugging use
3046
return "<config.%s(%s)>" % (self.__class__.__name__,
3047
self.external_url())
3050
class CommandLineStore(Store):
3051
"A store to carry command line overrides for the config options."""
3053
def __init__(self, opts=None):
3054
super(CommandLineStore, self).__init__()
3061
# The dict should be cleared but not replaced so it can be shared.
3062
self.options.clear()
3064
def _from_cmdline(self, overrides):
3065
# Reset before accepting new definitions
3067
for over in overrides:
3069
name, value = over.split('=', 1)
3071
raise errors.BzrCommandError(
3072
gettext("Invalid '%s', should be of the form 'name=value'")
3074
self.options[name] = value
3076
def external_url(self):
3077
# Not an url but it makes debugging easier and is never needed
3081
def get_sections(self):
3082
yield self, self.readonly_section_class(None, self.options)
3085
class IniFileStore(Store):
3086
"""A config Store using ConfigObj for storage.
3088
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3089
serialize/deserialize the config file.
3093
"""A config Store using ConfigObj for storage.
3095
super(IniFileStore, self).__init__()
3096
self._config_obj = None
3098
def is_loaded(self):
3099
return self._config_obj != None
3102
self._config_obj = None
3103
self.dirty_sections = {}
3105
def _load_content(self):
3106
"""Load the config file bytes.
3108
This should be provided by subclasses
3110
:return: Byte string
3112
raise NotImplementedError(self._load_content)
3114
def _save_content(self, content):
3115
"""Save the config file bytes.
3117
This should be provided by subclasses
3119
:param content: Config file bytes to write
3121
raise NotImplementedError(self._save_content)
3124
"""Load the store from the associated file."""
3125
if self.is_loaded():
3127
content = self._load_content()
3128
self._load_from_string(content)
3129
for hook in ConfigHooks['load']:
3132
def _load_from_string(self, bytes):
3133
"""Create a config store from a string.
3135
:param bytes: A string representing the file content.
3137
if self.is_loaded():
3138
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3139
co_input = BytesIO(bytes)
3141
# The config files are always stored utf8-encoded
3142
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3144
except configobj.ConfigObjError as e:
3145
self._config_obj = None
3146
raise errors.ParseConfigError(e.errors, self.external_url())
3147
except UnicodeDecodeError:
3148
raise errors.ConfigContentError(self.external_url())
3150
def save_changes(self):
3151
if not self.is_loaded():
3154
if not self._need_saving():
3156
# Preserve the current version
3157
dirty_sections = dict(self.dirty_sections.items())
3158
self.apply_changes(dirty_sections)
3159
# Save to the persistent storage
3163
if not self.is_loaded():
3167
self._config_obj.write(out)
3168
self._save_content(out.getvalue())
3169
for hook in ConfigHooks['save']:
3172
def get_sections(self):
3173
"""Get the configobj section in the file order.
3175
:returns: An iterable of (store, section).
3177
# We need a loaded store
3180
except (errors.NoSuchFile, errors.PermissionDenied):
3181
# If the file can't be read, there is no sections
3183
cobj = self._config_obj
3185
yield self, self.readonly_section_class(None, cobj)
3186
for section_name in cobj.sections:
3188
self.readonly_section_class(section_name,
3189
cobj[section_name]))
3191
def get_mutable_section(self, section_id=None):
3192
# We need a loaded store
3195
except errors.NoSuchFile:
3196
# The file doesn't exist, let's pretend it was empty
3197
self._load_from_string('')
3198
if section_id in self.dirty_sections:
3199
# We already created a mutable section for this id
3200
return self.dirty_sections[section_id]
3201
if section_id is None:
3202
section = self._config_obj
3204
section = self._config_obj.setdefault(section_id, {})
3205
mutable_section = self.mutable_section_class(section_id, section)
3206
# All mutable sections can become dirty
3207
self.dirty_sections[section_id] = mutable_section
3208
return mutable_section
3210
def quote(self, value):
3212
# configobj conflates automagical list values and quoting
3213
self._config_obj.list_values = True
3214
return self._config_obj._quote(value)
3216
self._config_obj.list_values = False
3218
def unquote(self, value):
3219
if value and isinstance(value, string_types):
3220
# _unquote doesn't handle None nor empty strings nor anything that
3221
# is not a string, really.
3222
value = self._config_obj._unquote(value)
3225
def external_url(self):
3226
# Since an IniFileStore can be used without a file (at least in tests),
3227
# it's better to provide something than raising a NotImplementedError.
3228
# All daughter classes are supposed to provide an implementation
3230
return 'In-Process Store, no URL'
3233
class TransportIniFileStore(IniFileStore):
3234
"""IniFileStore that loads files from a transport.
3236
:ivar transport: The transport object where the config file is located.
3238
:ivar file_name: The config file basename in the transport directory.
3241
def __init__(self, transport, file_name):
3242
"""A Store using a ini file on a Transport
3244
:param transport: The transport object where the config file is located.
3245
:param file_name: The config file basename in the transport directory.
3247
super(TransportIniFileStore, self).__init__()
3248
self.transport = transport
3249
self.file_name = file_name
3251
def _load_content(self):
3253
return self.transport.get_bytes(self.file_name)
3254
except errors.PermissionDenied:
3255
trace.warning("Permission denied while trying to load "
3256
"configuration store %s.", self.external_url())
3259
def _save_content(self, content):
3260
self.transport.put_bytes(self.file_name, content)
3262
def external_url(self):
3263
# FIXME: external_url should really accepts an optional relpath
3264
# parameter (bug #750169) :-/ -- vila 2011-04-04
3265
# The following will do in the interim but maybe we don't want to
3266
# expose a path here but rather a config ID and its associated
3267
# object </hand wawe>.
3268
return urlutils.join(self.transport.external_url(), self.file_name.encode("ascii"))
3271
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3272
# unlockable stores for use with objects that can already ensure the locking
3273
# (think branches). If different stores (not based on ConfigObj) are created,
3274
# they may face the same issue.
3277
class LockableIniFileStore(TransportIniFileStore):
3278
"""A ConfigObjStore using locks on save to ensure store integrity."""
3280
def __init__(self, transport, file_name, lock_dir_name=None):
3281
"""A config Store using ConfigObj for storage.
3283
:param transport: The transport object where the config file is located.
3285
:param file_name: The config file basename in the transport directory.
3287
if lock_dir_name is None:
3288
lock_dir_name = 'lock'
3289
self.lock_dir_name = lock_dir_name
3290
super(LockableIniFileStore, self).__init__(transport, file_name)
3291
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3293
def lock_write(self, token=None):
3294
"""Takes a write lock in the directory containing the config file.
3296
If the directory doesn't exist it is created.
3298
# FIXME: This doesn't check the ownership of the created directories as
3299
# ensure_config_dir_exists does. It should if the transport is local
3300
# -- vila 2011-04-06
3301
self.transport.create_prefix()
3302
return self._lock.lock_write(token)
3307
def break_lock(self):
3308
self._lock.break_lock()
3312
# We need to be able to override the undecorated implementation
3313
self.save_without_locking()
3315
def save_without_locking(self):
3316
super(LockableIniFileStore, self).save()
3319
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3320
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3321
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3323
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3324
# functions or a registry will make it easier and clearer for tests, focusing
3325
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3326
# on a poolie's remark)
3327
class GlobalStore(LockableIniFileStore):
3328
"""A config store for global options.
3330
There is a single GlobalStore for a given process.
3333
def __init__(self, possible_transports=None):
3334
t = transport.get_transport_from_path(
3335
config_dir(), possible_transports=possible_transports)
3336
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3340
class LocationStore(LockableIniFileStore):
3341
"""A config store for options specific to a location.
3343
There is a single LocationStore for a given process.
3346
def __init__(self, possible_transports=None):
3347
t = transport.get_transport_from_path(
3348
config_dir(), possible_transports=possible_transports)
3349
super(LocationStore, self).__init__(t, 'locations.conf')
3350
self.id = 'locations'
3353
class BranchStore(TransportIniFileStore):
3354
"""A config store for branch options.
3356
There is a single BranchStore for a given branch.
3359
def __init__(self, branch):
3360
super(BranchStore, self).__init__(branch.control_transport,
3362
self.branch = branch
3366
class ControlStore(LockableIniFileStore):
3368
def __init__(self, bzrdir):
3369
super(ControlStore, self).__init__(bzrdir.transport,
3371
lock_dir_name='branch_lock')
3375
class SectionMatcher(object):
3376
"""Select sections into a given Store.
3378
This is intended to be used to postpone getting an iterable of sections
3382
def __init__(self, store):
3385
def get_sections(self):
3386
# This is where we require loading the store so we can see all defined
3388
sections = self.store.get_sections()
3389
# Walk the revisions in the order provided
3390
for store, s in sections:
3394
def match(self, section):
3395
"""Does the proposed section match.
3397
:param section: A Section object.
3399
:returns: True if the section matches, False otherwise.
3401
raise NotImplementedError(self.match)
3404
class NameMatcher(SectionMatcher):
3406
def __init__(self, store, section_id):
3407
super(NameMatcher, self).__init__(store)
3408
self.section_id = section_id
3410
def match(self, section):
3411
return section.id == self.section_id
3414
class LocationSection(Section):
3416
def __init__(self, section, extra_path, branch_name=None):
3417
super(LocationSection, self).__init__(section.id, section.options)
3418
self.extra_path = extra_path
3419
if branch_name is None:
3421
self.locals = {'relpath': extra_path,
3422
'basename': urlutils.basename(extra_path),
3423
'branchname': branch_name}
3425
def get(self, name, default=None, expand=True):
3426
value = super(LocationSection, self).get(name, default)
3427
if value is not None and expand:
3428
policy_name = self.get(name + ':policy', None)
3429
policy = _policy_value.get(policy_name, POLICY_NONE)
3430
if policy == POLICY_APPENDPATH:
3431
value = urlutils.join(value, self.extra_path)
3432
# expand section local options right now (since POLICY_APPENDPATH
3433
# will never add options references, it's ok to expand after it).
3435
for is_ref, chunk in iter_option_refs(value):
3437
chunks.append(chunk)
3440
if ref in self.locals:
3441
chunks.append(self.locals[ref])
3443
chunks.append(chunk)
3444
value = ''.join(chunks)
3448
class StartingPathMatcher(SectionMatcher):
3449
"""Select sections for a given location respecting the Store order."""
3451
# FIXME: Both local paths and urls can be used for section names as well as
3452
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3453
# inherited the fuzziness from the previous ``LocationConfig``
3454
# implementation. We probably need to revisit which encoding is allowed for
3455
# both ``location`` and section names and how we normalize
3456
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3457
# related too. -- vila 2012-01-04
3459
def __init__(self, store, location):
3460
super(StartingPathMatcher, self).__init__(store)
3461
if location.startswith('file://'):
3462
location = urlutils.local_path_from_url(location)
3463
self.location = location
3465
def get_sections(self):
3466
"""Get all sections matching ``location`` in the store.
3468
The most generic sections are described first in the store, then more
3469
specific ones can be provided for reduced scopes.
3471
The returned section are therefore returned in the reversed order so
3472
the most specific ones can be found first.
3474
location_parts = self.location.rstrip('/').split('/')
3476
# Later sections are more specific, they should be returned first
3477
for _, section in reversed(list(store.get_sections())):
3478
if section.id is None:
3479
# The no-name section is always included if present
3480
yield store, LocationSection(section, self.location)
3482
section_path = section.id
3483
if section_path.startswith('file://'):
3484
# the location is already a local path or URL, convert the
3485
# section id to the same format
3486
section_path = urlutils.local_path_from_url(section_path)
3487
if (self.location.startswith(section_path)
3488
or fnmatch.fnmatch(self.location, section_path)):
3489
section_parts = section_path.rstrip('/').split('/')
3490
extra_path = '/'.join(location_parts[len(section_parts):])
3491
yield store, LocationSection(section, extra_path)
3494
class LocationMatcher(SectionMatcher):
3496
def __init__(self, store, location):
3497
super(LocationMatcher, self).__init__(store)
3498
url, params = urlutils.split_segment_parameters(location)
3499
if location.startswith('file://'):
3500
location = urlutils.local_path_from_url(location)
3501
self.location = location
3502
branch_name = params.get('branch')
3503
if branch_name is None:
3504
self.branch_name = urlutils.basename(self.location)
3506
self.branch_name = urlutils.unescape(branch_name)
3508
def _get_matching_sections(self):
3509
"""Get all sections matching ``location``."""
3510
# We slightly diverge from LocalConfig here by allowing the no-name
3511
# section as the most generic one and the lower priority.
3512
no_name_section = None
3514
# Filter out the no_name_section so _iter_for_location_by_parts can be
3515
# used (it assumes all sections have a name).
3516
for _, section in self.store.get_sections():
3517
if section.id is None:
3518
no_name_section = section
3520
all_sections.append(section)
3521
# Unfortunately _iter_for_location_by_parts deals with section names so
3522
# we have to resync.
3523
filtered_sections = _iter_for_location_by_parts(
3524
[s.id for s in all_sections], self.location)
3525
iter_all_sections = iter(all_sections)
3526
matching_sections = []
3527
if no_name_section is not None:
3528
matching_sections.append(
3529
(0, LocationSection(no_name_section, self.location)))
3530
for section_id, extra_path, length in filtered_sections:
3531
# a section id is unique for a given store so it's safe to take the
3532
# first matching section while iterating. Also, all filtered
3533
# sections are part of 'all_sections' and will always be found
3536
section = iter_all_sections.next()
3537
if section_id == section.id:
3538
section = LocationSection(section, extra_path,
3540
matching_sections.append((length, section))
3542
return matching_sections
3544
def get_sections(self):
3545
# Override the default implementation as we want to change the order
3546
# We want the longest (aka more specific) locations first
3547
sections = sorted(self._get_matching_sections(),
3548
key=lambda match: (match[0], match[1].id),
3550
# Sections mentioning 'ignore_parents' restrict the selection
3551
for _, section in sections:
3552
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3553
ignore = section.get('ignore_parents', None)
3554
if ignore is not None:
3555
ignore = ui.bool_from_string(ignore)
3558
# Finally, we have a valid section
3559
yield self.store, section
3562
# FIXME: _shared_stores should be an attribute of a library state once a
3563
# library_state object is always available.
3565
_shared_stores_at_exit_installed = False
3567
class Stack(object):
3568
"""A stack of configurations where an option can be defined"""
3570
def __init__(self, sections_def, store=None, mutable_section_id=None):
3571
"""Creates a stack of sections with an optional store for changes.
3573
:param sections_def: A list of Section or callables that returns an
3574
iterable of Section. This defines the Sections for the Stack and
3575
can be called repeatedly if needed.
3577
:param store: The optional Store where modifications will be
3578
recorded. If none is specified, no modifications can be done.
3580
:param mutable_section_id: The id of the MutableSection where changes
3581
are recorded. This requires the ``store`` parameter to be
3584
self.sections_def = sections_def
3586
self.mutable_section_id = mutable_section_id
3588
def iter_sections(self):
3589
"""Iterate all the defined sections."""
3590
# Ensuring lazy loading is achieved by delaying section matching (which
3591
# implies querying the persistent storage) until it can't be avoided
3592
# anymore by using callables to describe (possibly empty) section
3594
for sections in self.sections_def:
3595
for store, section in sections():
3596
yield store, section
3598
def get(self, name, expand=True, convert=True):
3599
"""Return the *first* option value found in the sections.
3601
This is where we guarantee that sections coming from Store are loaded
3602
lazily: the loading is delayed until we need to either check that an
3603
option exists or get its value, which in turn may require to discover
3604
in which sections it can be defined. Both of these (section and option
3605
existence) require loading the store (even partially).
3607
:param name: The queried option.
3609
:param expand: Whether options references should be expanded.
3611
:param convert: Whether the option value should be converted from
3612
unicode (do nothing for non-registered options).
3614
:returns: The value of the option.
3616
# FIXME: No caching of options nor sections yet -- vila 20110503
3618
found_store = None # Where the option value has been found
3619
# If the option is registered, it may provide additional info about
3622
opt = option_registry.get(name)
3627
def expand_and_convert(val):
3628
# This may need to be called in different contexts if the value is
3629
# None or ends up being None during expansion or conversion.
3632
if isinstance(val, string_types):
3633
val = self._expand_options_in_string(val)
3635
trace.warning('Cannot expand "%s":'
3636
' %s does not support option expansion'
3637
% (name, type(val)))
3639
val = found_store.unquote(val)
3641
val = opt.convert_from_unicode(found_store, val)
3644
# First of all, check if the environment can override the configuration
3646
if opt is not None and opt.override_from_env:
3647
value = opt.get_override()
3648
value = expand_and_convert(value)
3650
for store, section in self.iter_sections():
3651
value = section.get(name)
3652
if value is not None:
3655
value = expand_and_convert(value)
3656
if opt is not None and value is None:
3657
# If the option is registered, it may provide a default value
3658
value = opt.get_default()
3659
value = expand_and_convert(value)
3660
for hook in ConfigHooks['get']:
3661
hook(self, name, value)
3664
def expand_options(self, string, env=None):
3665
"""Expand option references in the string in the configuration context.
3667
:param string: The string containing option(s) to expand.
3669
:param env: An option dict defining additional configuration options or
3670
overriding existing ones.
3672
:returns: The expanded string.
3674
return self._expand_options_in_string(string, env)
3676
def _expand_options_in_string(self, string, env=None, _refs=None):
3677
"""Expand options in the string in the configuration context.
3679
:param string: The string to be expanded.
3681
:param env: An option dict defining additional configuration options or
3682
overriding existing ones.
3684
:param _refs: Private list (FIFO) containing the options being expanded
3687
:returns: The expanded string.
3690
# Not much to expand there
3693
# What references are currently resolved (to detect loops)
3696
# We need to iterate until no more refs appear ({{foo}} will need two
3697
# iterations for example).
3702
for is_ref, chunk in iter_option_refs(result):
3704
chunks.append(chunk)
3709
raise errors.OptionExpansionLoop(string, _refs)
3711
value = self._expand_option(name, env, _refs)
3713
raise errors.ExpandingUnknownOption(name, string)
3714
chunks.append(value)
3716
result = ''.join(chunks)
3719
def _expand_option(self, name, env, _refs):
3720
if env is not None and name in env:
3721
# Special case, values provided in env takes precedence over
3725
value = self.get(name, expand=False, convert=False)
3726
value = self._expand_options_in_string(value, env, _refs)
3729
def _get_mutable_section(self):
3730
"""Get the MutableSection for the Stack.
3732
This is where we guarantee that the mutable section is lazily loaded:
3733
this means we won't load the corresponding store before setting a value
3734
or deleting an option. In practice the store will often be loaded but
3735
this helps catching some programming errors.
3738
section = store.get_mutable_section(self.mutable_section_id)
3739
return store, section
3741
def set(self, name, value):
3742
"""Set a new value for the option."""
3743
store, section = self._get_mutable_section()
3744
section.set(name, store.quote(value))
3745
for hook in ConfigHooks['set']:
3746
hook(self, name, value)
3748
def remove(self, name):
3749
"""Remove an existing option."""
3750
_, section = self._get_mutable_section()
3751
section.remove(name)
3752
for hook in ConfigHooks['remove']:
3756
# Mostly for debugging use
3757
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3759
def _get_overrides(self):
3760
# FIXME: Hack around library_state.initialize never called
3761
if breezy.global_state is not None:
3762
return breezy.global_state.cmdline_overrides.get_sections()
3765
def get_shared_store(self, store, state=None):
3766
"""Get a known shared store.
3768
Store urls uniquely identify them and are used to ensure a single copy
3769
is shared across all users.
3771
:param store: The store known to the caller.
3773
:param state: The library state where the known stores are kept.
3775
:returns: The store received if it's not a known one, an already known
3779
state = breezy.global_state
3781
global _shared_stores_at_exit_installed
3782
stores = _shared_stores
3783
def save_config_changes():
3784
for k, store in stores.items():
3785
store.save_changes()
3786
if not _shared_stores_at_exit_installed:
3787
# FIXME: Ugly hack waiting for library_state to always be
3788
# available. -- vila 20120731
3790
atexit.register(save_config_changes)
3791
_shared_stores_at_exit_installed = True
3793
stores = state.config_stores
3794
url = store.external_url()
3802
class MemoryStack(Stack):
3803
"""A configuration stack defined from a string.
3805
This is mainly intended for tests and requires no disk resources.
3808
def __init__(self, content=None):
3809
"""Create an in-memory stack from a given content.
3811
It uses a single store based on configobj and support reading and
3814
:param content: The initial content of the store. If None, the store is
3815
not loaded and ``_load_from_string`` can and should be used if
3818
store = IniFileStore()
3819
if content is not None:
3820
store._load_from_string(content)
3821
super(MemoryStack, self).__init__(
3822
[store.get_sections], store)
3825
class _CompatibleStack(Stack):
3826
"""Place holder for compatibility with previous design.
3828
This is intended to ease the transition from the Config-based design to the
3829
Stack-based design and should not be used nor relied upon by plugins.
3831
One assumption made here is that the daughter classes will all use Stores
3832
derived from LockableIniFileStore).
3834
It implements set() and remove () by re-loading the store before applying
3835
the modification and saving it.
3837
The long term plan being to implement a single write by store to save
3838
all modifications, this class should not be used in the interim.
3841
def set(self, name, value):
3844
super(_CompatibleStack, self).set(name, value)
3845
# Force a write to persistent storage
3848
def remove(self, name):
3851
super(_CompatibleStack, self).remove(name)
3852
# Force a write to persistent storage
3856
class GlobalStack(Stack):
3857
"""Global options only stack.
3859
The following sections are queried:
3861
* command-line overrides,
3863
* the 'DEFAULT' section in bazaar.conf
3865
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3870
gstore = self.get_shared_store(GlobalStore())
3871
super(GlobalStack, self).__init__(
3872
[self._get_overrides,
3873
NameMatcher(gstore, 'DEFAULT').get_sections],
3874
gstore, mutable_section_id='DEFAULT')
3877
class LocationStack(Stack):
3878
"""Per-location options falling back to global options stack.
3881
The following sections are queried:
3883
* command-line overrides,
3885
* the sections matching ``location`` in ``locations.conf``, the order being
3886
defined by the number of path components in the section glob, higher
3887
numbers first (from most specific section to most generic).
3889
* the 'DEFAULT' section in bazaar.conf
3891
This stack will use the ``location`` section in locations.conf as its
3895
def __init__(self, location):
3896
"""Make a new stack for a location and global configuration.
3898
:param location: A URL prefix to """
3899
lstore = self.get_shared_store(LocationStore())
3900
if location.startswith('file://'):
3901
location = urlutils.local_path_from_url(location)
3902
gstore = self.get_shared_store(GlobalStore())
3903
super(LocationStack, self).__init__(
3904
[self._get_overrides,
3905
LocationMatcher(lstore, location).get_sections,
3906
NameMatcher(gstore, 'DEFAULT').get_sections],
3907
lstore, mutable_section_id=location)
3910
class BranchStack(Stack):
3911
"""Per-location options falling back to branch then global options stack.
3913
The following sections are queried:
3915
* command-line overrides,
3917
* the sections matching ``location`` in ``locations.conf``, the order being
3918
defined by the number of path components in the section glob, higher
3919
numbers first (from most specific section to most generic),
3921
* the no-name section in branch.conf,
3923
* the ``DEFAULT`` section in ``bazaar.conf``.
3925
This stack will use the no-name section in ``branch.conf`` as its
3929
def __init__(self, branch):
3930
lstore = self.get_shared_store(LocationStore())
3931
bstore = branch._get_config_store()
3932
gstore = self.get_shared_store(GlobalStore())
3933
super(BranchStack, self).__init__(
3934
[self._get_overrides,
3935
LocationMatcher(lstore, branch.base).get_sections,
3936
NameMatcher(bstore, None).get_sections,
3937
NameMatcher(gstore, 'DEFAULT').get_sections],
3939
self.branch = branch
3941
def lock_write(self, token=None):
3942
return self.branch.lock_write(token)
3945
return self.branch.unlock()
3948
def set(self, name, value):
3949
super(BranchStack, self).set(name, value)
3950
# Unlocking the branch will trigger a store.save_changes() so the last
3951
# unlock saves all the changes.
3954
def remove(self, name):
3955
super(BranchStack, self).remove(name)
3956
# Unlocking the branch will trigger a store.save_changes() so the last
3957
# unlock saves all the changes.
3960
class RemoteControlStack(Stack):
3961
"""Remote control-only options stack."""
3963
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3964
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3965
# control.conf and is used only for stack options.
3967
def __init__(self, bzrdir):
3968
cstore = bzrdir._get_config_store()
3969
super(RemoteControlStack, self).__init__(
3970
[NameMatcher(cstore, None).get_sections],
3972
self.bzrdir = bzrdir
3975
class BranchOnlyStack(Stack):
3976
"""Branch-only options stack."""
3978
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3979
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3980
# -- vila 2011-12-16
3982
def __init__(self, branch):
3983
bstore = branch._get_config_store()
3984
super(BranchOnlyStack, self).__init__(
3985
[NameMatcher(bstore, None).get_sections],
3987
self.branch = branch
3989
def lock_write(self, token=None):
3990
return self.branch.lock_write(token)
3993
return self.branch.unlock()
3996
def set(self, name, value):
3997
super(BranchOnlyStack, self).set(name, value)
3998
# Force a write to persistent storage
3999
self.store.save_changes()
4002
def remove(self, name):
4003
super(BranchOnlyStack, self).remove(name)
4004
# Force a write to persistent storage
4005
self.store.save_changes()
4008
class cmd_config(commands.Command):
4009
__doc__ = """Display, set or remove a configuration option.
4011
Display the active value for option NAME.
4013
If --all is specified, NAME is interpreted as a regular expression and all
4014
matching options are displayed mentioning their scope and without resolving
4015
option references in the value). The active value that bzr will take into
4016
account is the first one displayed for each option.
4018
If NAME is not given, --all .* is implied (all options are displayed for the
4021
Setting a value is achieved by using NAME=value without spaces. The value
4022
is set in the most relevant scope and can be checked by displaying the
4025
Removing a value is achieved by using --remove NAME.
4028
takes_args = ['name?']
4032
# FIXME: This should be a registry option so that plugins can register
4033
# their own config files (or not) and will also address
4034
# http://pad.lv/788991 -- vila 20101115
4035
commands.Option('scope', help='Reduce the scope to the specified'
4036
' configuration file.',
4038
commands.Option('all',
4039
help='Display all the defined values for the matching options.',
4041
commands.Option('remove', help='Remove the option from'
4042
' the configuration file.'),
4045
_see_also = ['configuration']
4047
@commands.display_command
4048
def run(self, name=None, all=False, directory=None, scope=None,
4050
if directory is None:
4052
directory = directory_service.directories.dereference(directory)
4053
directory = urlutils.normalize_url(directory)
4055
raise errors.BzrError(
4056
'--all and --remove are mutually exclusive.')
4058
# Delete the option in the given scope
4059
self._remove_config_option(name, directory, scope)
4061
# Defaults to all options
4062
self._show_matching_options('.*', directory, scope)
4065
name, value = name.split('=', 1)
4067
# Display the option(s) value(s)
4069
self._show_matching_options(name, directory, scope)
4071
self._show_value(name, directory, scope)
4074
raise errors.BzrError(
4075
'Only one option can be set.')
4076
# Set the option value
4077
self._set_config_option(name, value, directory, scope)
4079
def _get_stack(self, directory, scope=None, write_access=False):
4080
"""Get the configuration stack specified by ``directory`` and ``scope``.
4082
:param directory: Where the configurations are derived from.
4084
:param scope: A specific config to start from.
4086
:param write_access: Whether a write access to the stack will be
4089
# FIXME: scope should allow access to plugin-specific stacks (even
4090
# reduced to the plugin-specific store), related to
4091
# http://pad.lv/788991 -- vila 2011-11-15
4092
if scope is not None:
4093
if scope == 'bazaar':
4094
return GlobalStack()
4095
elif scope == 'locations':
4096
return LocationStack(directory)
4097
elif scope == 'branch':
4099
controldir.ControlDir.open_containing_tree_or_branch(
4102
self.add_cleanup(br.lock_write().unlock)
4103
return br.get_config_stack()
4104
raise errors.NoSuchConfig(scope)
4108
controldir.ControlDir.open_containing_tree_or_branch(
4111
self.add_cleanup(br.lock_write().unlock)
4112
return br.get_config_stack()
4113
except errors.NotBranchError:
4114
return LocationStack(directory)
4116
def _quote_multiline(self, value):
4118
value = '"""' + value + '"""'
4121
def _show_value(self, name, directory, scope):
4122
conf = self._get_stack(directory, scope)
4123
value = conf.get(name, expand=True, convert=False)
4124
if value is not None:
4125
# Quote the value appropriately
4126
value = self._quote_multiline(value)
4127
self.outf.write('%s\n' % (value,))
4129
raise errors.NoSuchConfigOption(name)
4131
def _show_matching_options(self, name, directory, scope):
4132
name = lazy_regex.lazy_compile(name)
4133
# We want any error in the regexp to be raised *now* so we need to
4134
# avoid the delay introduced by the lazy regexp. But, we still do
4135
# want the nicer errors raised by lazy_regex.
4136
name._compile_and_collapse()
4139
conf = self._get_stack(directory, scope)
4140
for store, section in conf.iter_sections():
4141
for oname in section.iter_option_names():
4142
if name.search(oname):
4143
if cur_store_id != store.id:
4144
# Explain where the options are defined
4145
self.outf.write('%s:\n' % (store.id,))
4146
cur_store_id = store.id
4148
if (section.id is not None and cur_section != section.id):
4149
# Display the section id as it appears in the store
4150
# (None doesn't appear by definition)
4151
self.outf.write(' [%s]\n' % (section.id,))
4152
cur_section = section.id
4153
value = section.get(oname, expand=False)
4154
# Quote the value appropriately
4155
value = self._quote_multiline(value)
4156
self.outf.write(' %s = %s\n' % (oname, value))
4158
def _set_config_option(self, name, value, directory, scope):
4159
conf = self._get_stack(directory, scope, write_access=True)
4160
conf.set(name, value)
4161
# Explicitly save the changes
4162
conf.store.save_changes()
4164
def _remove_config_option(self, name, directory, scope):
4166
raise errors.BzrCommandError(
4167
'--remove expects an option to remove.')
4168
conf = self._get_stack(directory, scope, write_access=True)
4171
# Explicitly save the changes
4172
conf.store.save_changes()
4174
raise errors.NoSuchConfigOption(name)
4179
# We need adapters that can build a Store or a Stack in a test context. Test
4180
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4181
# themselves. The builder will receive a test instance and should return a
4182
# ready-to-use store or stack. Plugins that define new store/stacks can also
4183
# register themselves here to be tested against the tests defined in
4184
# breezy.tests.test_config. Note that the builder can be called multiple times
4185
# for the same test.
4187
# The registered object should be a callable receiving a test instance
4188
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4190
test_store_builder_registry = registry.Registry()
4192
# The registered object should be a callable receiving a test instance
4193
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4195
test_stack_builder_registry = registry.Registry()