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.keys():
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.items():
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.items():
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 = self.dirty_sections.copy()
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(
3269
self.transport.external_url(), urlutils.escape(self.file_name))
3272
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3273
# unlockable stores for use with objects that can already ensure the locking
3274
# (think branches). If different stores (not based on ConfigObj) are created,
3275
# they may face the same issue.
3278
class LockableIniFileStore(TransportIniFileStore):
3279
"""A ConfigObjStore using locks on save to ensure store integrity."""
3281
def __init__(self, transport, file_name, lock_dir_name=None):
3282
"""A config Store using ConfigObj for storage.
3284
:param transport: The transport object where the config file is located.
3286
:param file_name: The config file basename in the transport directory.
3288
if lock_dir_name is None:
3289
lock_dir_name = 'lock'
3290
self.lock_dir_name = lock_dir_name
3291
super(LockableIniFileStore, self).__init__(transport, file_name)
3292
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3294
def lock_write(self, token=None):
3295
"""Takes a write lock in the directory containing the config file.
3297
If the directory doesn't exist it is created.
3299
# FIXME: This doesn't check the ownership of the created directories as
3300
# ensure_config_dir_exists does. It should if the transport is local
3301
# -- vila 2011-04-06
3302
self.transport.create_prefix()
3303
return self._lock.lock_write(token)
3308
def break_lock(self):
3309
self._lock.break_lock()
3313
# We need to be able to override the undecorated implementation
3314
self.save_without_locking()
3316
def save_without_locking(self):
3317
super(LockableIniFileStore, self).save()
3320
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3321
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3322
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3324
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3325
# functions or a registry will make it easier and clearer for tests, focusing
3326
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3327
# on a poolie's remark)
3328
class GlobalStore(LockableIniFileStore):
3329
"""A config store for global options.
3331
There is a single GlobalStore for a given process.
3334
def __init__(self, possible_transports=None):
3335
t = transport.get_transport_from_path(
3336
config_dir(), possible_transports=possible_transports)
3337
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3341
class LocationStore(LockableIniFileStore):
3342
"""A config store for options specific to a location.
3344
There is a single LocationStore for a given process.
3347
def __init__(self, possible_transports=None):
3348
t = transport.get_transport_from_path(
3349
config_dir(), possible_transports=possible_transports)
3350
super(LocationStore, self).__init__(t, 'locations.conf')
3351
self.id = 'locations'
3354
class BranchStore(TransportIniFileStore):
3355
"""A config store for branch options.
3357
There is a single BranchStore for a given branch.
3360
def __init__(self, branch):
3361
super(BranchStore, self).__init__(branch.control_transport,
3363
self.branch = branch
3367
class ControlStore(LockableIniFileStore):
3369
def __init__(self, bzrdir):
3370
super(ControlStore, self).__init__(bzrdir.transport,
3372
lock_dir_name='branch_lock')
3376
class SectionMatcher(object):
3377
"""Select sections into a given Store.
3379
This is intended to be used to postpone getting an iterable of sections
3383
def __init__(self, store):
3386
def get_sections(self):
3387
# This is where we require loading the store so we can see all defined
3389
sections = self.store.get_sections()
3390
# Walk the revisions in the order provided
3391
for store, s in sections:
3395
def match(self, section):
3396
"""Does the proposed section match.
3398
:param section: A Section object.
3400
:returns: True if the section matches, False otherwise.
3402
raise NotImplementedError(self.match)
3405
class NameMatcher(SectionMatcher):
3407
def __init__(self, store, section_id):
3408
super(NameMatcher, self).__init__(store)
3409
self.section_id = section_id
3411
def match(self, section):
3412
return section.id == self.section_id
3415
class LocationSection(Section):
3417
def __init__(self, section, extra_path, branch_name=None):
3418
super(LocationSection, self).__init__(section.id, section.options)
3419
self.extra_path = extra_path
3420
if branch_name is None:
3422
self.locals = {'relpath': extra_path,
3423
'basename': urlutils.basename(extra_path),
3424
'branchname': branch_name}
3426
def get(self, name, default=None, expand=True):
3427
value = super(LocationSection, self).get(name, default)
3428
if value is not None and expand:
3429
policy_name = self.get(name + ':policy', None)
3430
policy = _policy_value.get(policy_name, POLICY_NONE)
3431
if policy == POLICY_APPENDPATH:
3432
value = urlutils.join(value, self.extra_path)
3433
# expand section local options right now (since POLICY_APPENDPATH
3434
# will never add options references, it's ok to expand after it).
3436
for is_ref, chunk in iter_option_refs(value):
3438
chunks.append(chunk)
3441
if ref in self.locals:
3442
chunks.append(self.locals[ref])
3444
chunks.append(chunk)
3445
value = ''.join(chunks)
3449
class StartingPathMatcher(SectionMatcher):
3450
"""Select sections for a given location respecting the Store order."""
3452
# FIXME: Both local paths and urls can be used for section names as well as
3453
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3454
# inherited the fuzziness from the previous ``LocationConfig``
3455
# implementation. We probably need to revisit which encoding is allowed for
3456
# both ``location`` and section names and how we normalize
3457
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3458
# related too. -- vila 2012-01-04
3460
def __init__(self, store, location):
3461
super(StartingPathMatcher, self).__init__(store)
3462
if location.startswith('file://'):
3463
location = urlutils.local_path_from_url(location)
3464
self.location = location
3466
def get_sections(self):
3467
"""Get all sections matching ``location`` in the store.
3469
The most generic sections are described first in the store, then more
3470
specific ones can be provided for reduced scopes.
3472
The returned section are therefore returned in the reversed order so
3473
the most specific ones can be found first.
3475
location_parts = self.location.rstrip('/').split('/')
3477
# Later sections are more specific, they should be returned first
3478
for _, section in reversed(list(store.get_sections())):
3479
if section.id is None:
3480
# The no-name section is always included if present
3481
yield store, LocationSection(section, self.location)
3483
section_path = section.id
3484
if section_path.startswith('file://'):
3485
# the location is already a local path or URL, convert the
3486
# section id to the same format
3487
section_path = urlutils.local_path_from_url(section_path)
3488
if (self.location.startswith(section_path)
3489
or fnmatch.fnmatch(self.location, section_path)):
3490
section_parts = section_path.rstrip('/').split('/')
3491
extra_path = '/'.join(location_parts[len(section_parts):])
3492
yield store, LocationSection(section, extra_path)
3495
class LocationMatcher(SectionMatcher):
3497
def __init__(self, store, location):
3498
super(LocationMatcher, self).__init__(store)
3499
url, params = urlutils.split_segment_parameters(location)
3500
if location.startswith('file://'):
3501
location = urlutils.local_path_from_url(location)
3502
self.location = location
3503
branch_name = params.get('branch')
3504
if branch_name is None:
3505
self.branch_name = urlutils.basename(self.location)
3507
self.branch_name = urlutils.unescape(branch_name)
3509
def _get_matching_sections(self):
3510
"""Get all sections matching ``location``."""
3511
# We slightly diverge from LocalConfig here by allowing the no-name
3512
# section as the most generic one and the lower priority.
3513
no_name_section = None
3515
# Filter out the no_name_section so _iter_for_location_by_parts can be
3516
# used (it assumes all sections have a name).
3517
for _, section in self.store.get_sections():
3518
if section.id is None:
3519
no_name_section = section
3521
all_sections.append(section)
3522
# Unfortunately _iter_for_location_by_parts deals with section names so
3523
# we have to resync.
3524
filtered_sections = _iter_for_location_by_parts(
3525
[s.id for s in all_sections], self.location)
3526
iter_all_sections = iter(all_sections)
3527
matching_sections = []
3528
if no_name_section is not None:
3529
matching_sections.append(
3530
(0, LocationSection(no_name_section, self.location)))
3531
for section_id, extra_path, length in filtered_sections:
3532
# a section id is unique for a given store so it's safe to take the
3533
# first matching section while iterating. Also, all filtered
3534
# sections are part of 'all_sections' and will always be found
3537
section = next(iter_all_sections)
3538
if section_id == section.id:
3539
section = LocationSection(section, extra_path,
3541
matching_sections.append((length, section))
3543
return matching_sections
3545
def get_sections(self):
3546
# Override the default implementation as we want to change the order
3547
# We want the longest (aka more specific) locations first
3548
sections = sorted(self._get_matching_sections(),
3549
key=lambda match: (match[0], match[1].id),
3551
# Sections mentioning 'ignore_parents' restrict the selection
3552
for _, section in sections:
3553
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3554
ignore = section.get('ignore_parents', None)
3555
if ignore is not None:
3556
ignore = ui.bool_from_string(ignore)
3559
# Finally, we have a valid section
3560
yield self.store, section
3563
# FIXME: _shared_stores should be an attribute of a library state once a
3564
# library_state object is always available.
3566
_shared_stores_at_exit_installed = False
3568
class Stack(object):
3569
"""A stack of configurations where an option can be defined"""
3571
def __init__(self, sections_def, store=None, mutable_section_id=None):
3572
"""Creates a stack of sections with an optional store for changes.
3574
:param sections_def: A list of Section or callables that returns an
3575
iterable of Section. This defines the Sections for the Stack and
3576
can be called repeatedly if needed.
3578
:param store: The optional Store where modifications will be
3579
recorded. If none is specified, no modifications can be done.
3581
:param mutable_section_id: The id of the MutableSection where changes
3582
are recorded. This requires the ``store`` parameter to be
3585
self.sections_def = sections_def
3587
self.mutable_section_id = mutable_section_id
3589
def iter_sections(self):
3590
"""Iterate all the defined sections."""
3591
# Ensuring lazy loading is achieved by delaying section matching (which
3592
# implies querying the persistent storage) until it can't be avoided
3593
# anymore by using callables to describe (possibly empty) section
3595
for sections in self.sections_def:
3596
for store, section in sections():
3597
yield store, section
3599
def get(self, name, expand=True, convert=True):
3600
"""Return the *first* option value found in the sections.
3602
This is where we guarantee that sections coming from Store are loaded
3603
lazily: the loading is delayed until we need to either check that an
3604
option exists or get its value, which in turn may require to discover
3605
in which sections it can be defined. Both of these (section and option
3606
existence) require loading the store (even partially).
3608
:param name: The queried option.
3610
:param expand: Whether options references should be expanded.
3612
:param convert: Whether the option value should be converted from
3613
unicode (do nothing for non-registered options).
3615
:returns: The value of the option.
3617
# FIXME: No caching of options nor sections yet -- vila 20110503
3619
found_store = None # Where the option value has been found
3620
# If the option is registered, it may provide additional info about
3623
opt = option_registry.get(name)
3628
def expand_and_convert(val):
3629
# This may need to be called in different contexts if the value is
3630
# None or ends up being None during expansion or conversion.
3633
if isinstance(val, string_types):
3634
val = self._expand_options_in_string(val)
3636
trace.warning('Cannot expand "%s":'
3637
' %s does not support option expansion'
3638
% (name, type(val)))
3640
val = found_store.unquote(val)
3642
val = opt.convert_from_unicode(found_store, val)
3645
# First of all, check if the environment can override the configuration
3647
if opt is not None and opt.override_from_env:
3648
value = opt.get_override()
3649
value = expand_and_convert(value)
3651
for store, section in self.iter_sections():
3652
value = section.get(name)
3653
if value is not None:
3656
value = expand_and_convert(value)
3657
if opt is not None and value is None:
3658
# If the option is registered, it may provide a default value
3659
value = opt.get_default()
3660
value = expand_and_convert(value)
3661
for hook in ConfigHooks['get']:
3662
hook(self, name, value)
3665
def expand_options(self, string, env=None):
3666
"""Expand option references in the string in the configuration context.
3668
:param string: The string containing option(s) to expand.
3670
:param env: An option dict defining additional configuration options or
3671
overriding existing ones.
3673
:returns: The expanded string.
3675
return self._expand_options_in_string(string, env)
3677
def _expand_options_in_string(self, string, env=None, _refs=None):
3678
"""Expand options in the string in the configuration context.
3680
:param string: The string to be expanded.
3682
:param env: An option dict defining additional configuration options or
3683
overriding existing ones.
3685
:param _refs: Private list (FIFO) containing the options being expanded
3688
:returns: The expanded string.
3691
# Not much to expand there
3694
# What references are currently resolved (to detect loops)
3697
# We need to iterate until no more refs appear ({{foo}} will need two
3698
# iterations for example).
3703
for is_ref, chunk in iter_option_refs(result):
3705
chunks.append(chunk)
3710
raise errors.OptionExpansionLoop(string, _refs)
3712
value = self._expand_option(name, env, _refs)
3714
raise errors.ExpandingUnknownOption(name, string)
3715
chunks.append(value)
3717
result = ''.join(chunks)
3720
def _expand_option(self, name, env, _refs):
3721
if env is not None and name in env:
3722
# Special case, values provided in env takes precedence over
3726
value = self.get(name, expand=False, convert=False)
3727
value = self._expand_options_in_string(value, env, _refs)
3730
def _get_mutable_section(self):
3731
"""Get the MutableSection for the Stack.
3733
This is where we guarantee that the mutable section is lazily loaded:
3734
this means we won't load the corresponding store before setting a value
3735
or deleting an option. In practice the store will often be loaded but
3736
this helps catching some programming errors.
3739
section = store.get_mutable_section(self.mutable_section_id)
3740
return store, section
3742
def set(self, name, value):
3743
"""Set a new value for the option."""
3744
store, section = self._get_mutable_section()
3745
section.set(name, store.quote(value))
3746
for hook in ConfigHooks['set']:
3747
hook(self, name, value)
3749
def remove(self, name):
3750
"""Remove an existing option."""
3751
_, section = self._get_mutable_section()
3752
section.remove(name)
3753
for hook in ConfigHooks['remove']:
3757
# Mostly for debugging use
3758
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3760
def _get_overrides(self):
3761
# FIXME: Hack around library_state.initialize never called
3762
if breezy.global_state is not None:
3763
return breezy.global_state.cmdline_overrides.get_sections()
3766
def get_shared_store(self, store, state=None):
3767
"""Get a known shared store.
3769
Store urls uniquely identify them and are used to ensure a single copy
3770
is shared across all users.
3772
:param store: The store known to the caller.
3774
:param state: The library state where the known stores are kept.
3776
:returns: The store received if it's not a known one, an already known
3780
state = breezy.global_state
3782
global _shared_stores_at_exit_installed
3783
stores = _shared_stores
3784
def save_config_changes():
3785
for k, store in stores.items():
3786
store.save_changes()
3787
if not _shared_stores_at_exit_installed:
3788
# FIXME: Ugly hack waiting for library_state to always be
3789
# available. -- vila 20120731
3791
atexit.register(save_config_changes)
3792
_shared_stores_at_exit_installed = True
3794
stores = state.config_stores
3795
url = store.external_url()
3803
class MemoryStack(Stack):
3804
"""A configuration stack defined from a string.
3806
This is mainly intended for tests and requires no disk resources.
3809
def __init__(self, content=None):
3810
"""Create an in-memory stack from a given content.
3812
It uses a single store based on configobj and support reading and
3815
:param content: The initial content of the store. If None, the store is
3816
not loaded and ``_load_from_string`` can and should be used if
3819
store = IniFileStore()
3820
if content is not None:
3821
store._load_from_string(content)
3822
super(MemoryStack, self).__init__(
3823
[store.get_sections], store)
3826
class _CompatibleStack(Stack):
3827
"""Place holder for compatibility with previous design.
3829
This is intended to ease the transition from the Config-based design to the
3830
Stack-based design and should not be used nor relied upon by plugins.
3832
One assumption made here is that the daughter classes will all use Stores
3833
derived from LockableIniFileStore).
3835
It implements set() and remove () by re-loading the store before applying
3836
the modification and saving it.
3838
The long term plan being to implement a single write by store to save
3839
all modifications, this class should not be used in the interim.
3842
def set(self, name, value):
3845
super(_CompatibleStack, self).set(name, value)
3846
# Force a write to persistent storage
3849
def remove(self, name):
3852
super(_CompatibleStack, self).remove(name)
3853
# Force a write to persistent storage
3857
class GlobalStack(Stack):
3858
"""Global options only stack.
3860
The following sections are queried:
3862
* command-line overrides,
3864
* the 'DEFAULT' section in bazaar.conf
3866
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3871
gstore = self.get_shared_store(GlobalStore())
3872
super(GlobalStack, self).__init__(
3873
[self._get_overrides,
3874
NameMatcher(gstore, 'DEFAULT').get_sections],
3875
gstore, mutable_section_id='DEFAULT')
3878
class LocationStack(Stack):
3879
"""Per-location options falling back to global options stack.
3882
The following sections are queried:
3884
* command-line overrides,
3886
* the sections matching ``location`` in ``locations.conf``, the order being
3887
defined by the number of path components in the section glob, higher
3888
numbers first (from most specific section to most generic).
3890
* the 'DEFAULT' section in bazaar.conf
3892
This stack will use the ``location`` section in locations.conf as its
3896
def __init__(self, location):
3897
"""Make a new stack for a location and global configuration.
3899
:param location: A URL prefix to """
3900
lstore = self.get_shared_store(LocationStore())
3901
if location.startswith('file://'):
3902
location = urlutils.local_path_from_url(location)
3903
gstore = self.get_shared_store(GlobalStore())
3904
super(LocationStack, self).__init__(
3905
[self._get_overrides,
3906
LocationMatcher(lstore, location).get_sections,
3907
NameMatcher(gstore, 'DEFAULT').get_sections],
3908
lstore, mutable_section_id=location)
3911
class BranchStack(Stack):
3912
"""Per-location options falling back to branch then global options stack.
3914
The following sections are queried:
3916
* command-line overrides,
3918
* the sections matching ``location`` in ``locations.conf``, the order being
3919
defined by the number of path components in the section glob, higher
3920
numbers first (from most specific section to most generic),
3922
* the no-name section in branch.conf,
3924
* the ``DEFAULT`` section in ``bazaar.conf``.
3926
This stack will use the no-name section in ``branch.conf`` as its
3930
def __init__(self, branch):
3931
lstore = self.get_shared_store(LocationStore())
3932
bstore = branch._get_config_store()
3933
gstore = self.get_shared_store(GlobalStore())
3934
super(BranchStack, self).__init__(
3935
[self._get_overrides,
3936
LocationMatcher(lstore, branch.base).get_sections,
3937
NameMatcher(bstore, None).get_sections,
3938
NameMatcher(gstore, 'DEFAULT').get_sections],
3940
self.branch = branch
3942
def lock_write(self, token=None):
3943
return self.branch.lock_write(token)
3946
return self.branch.unlock()
3949
def set(self, name, value):
3950
super(BranchStack, self).set(name, value)
3951
# Unlocking the branch will trigger a store.save_changes() so the last
3952
# unlock saves all the changes.
3955
def remove(self, name):
3956
super(BranchStack, self).remove(name)
3957
# Unlocking the branch will trigger a store.save_changes() so the last
3958
# unlock saves all the changes.
3961
class RemoteControlStack(Stack):
3962
"""Remote control-only options stack."""
3964
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3965
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3966
# control.conf and is used only for stack options.
3968
def __init__(self, bzrdir):
3969
cstore = bzrdir._get_config_store()
3970
super(RemoteControlStack, self).__init__(
3971
[NameMatcher(cstore, None).get_sections],
3973
self.bzrdir = bzrdir
3976
class BranchOnlyStack(Stack):
3977
"""Branch-only options stack."""
3979
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3980
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3981
# -- vila 2011-12-16
3983
def __init__(self, branch):
3984
bstore = branch._get_config_store()
3985
super(BranchOnlyStack, self).__init__(
3986
[NameMatcher(bstore, None).get_sections],
3988
self.branch = branch
3990
def lock_write(self, token=None):
3991
return self.branch.lock_write(token)
3994
return self.branch.unlock()
3997
def set(self, name, value):
3998
super(BranchOnlyStack, self).set(name, value)
3999
# Force a write to persistent storage
4000
self.store.save_changes()
4003
def remove(self, name):
4004
super(BranchOnlyStack, self).remove(name)
4005
# Force a write to persistent storage
4006
self.store.save_changes()
4009
class cmd_config(commands.Command):
4010
__doc__ = """Display, set or remove a configuration option.
4012
Display the active value for option NAME.
4014
If --all is specified, NAME is interpreted as a regular expression and all
4015
matching options are displayed mentioning their scope and without resolving
4016
option references in the value). The active value that bzr will take into
4017
account is the first one displayed for each option.
4019
If NAME is not given, --all .* is implied (all options are displayed for the
4022
Setting a value is achieved by using NAME=value without spaces. The value
4023
is set in the most relevant scope and can be checked by displaying the
4026
Removing a value is achieved by using --remove NAME.
4029
takes_args = ['name?']
4033
# FIXME: This should be a registry option so that plugins can register
4034
# their own config files (or not) and will also address
4035
# http://pad.lv/788991 -- vila 20101115
4036
commands.Option('scope', help='Reduce the scope to the specified'
4037
' configuration file.',
4039
commands.Option('all',
4040
help='Display all the defined values for the matching options.',
4042
commands.Option('remove', help='Remove the option from'
4043
' the configuration file.'),
4046
_see_also = ['configuration']
4048
@commands.display_command
4049
def run(self, name=None, all=False, directory=None, scope=None,
4051
if directory is None:
4053
directory = directory_service.directories.dereference(directory)
4054
directory = urlutils.normalize_url(directory)
4056
raise errors.BzrError(
4057
'--all and --remove are mutually exclusive.')
4059
# Delete the option in the given scope
4060
self._remove_config_option(name, directory, scope)
4062
# Defaults to all options
4063
self._show_matching_options('.*', directory, scope)
4066
name, value = name.split('=', 1)
4068
# Display the option(s) value(s)
4070
self._show_matching_options(name, directory, scope)
4072
self._show_value(name, directory, scope)
4075
raise errors.BzrError(
4076
'Only one option can be set.')
4077
# Set the option value
4078
self._set_config_option(name, value, directory, scope)
4080
def _get_stack(self, directory, scope=None, write_access=False):
4081
"""Get the configuration stack specified by ``directory`` and ``scope``.
4083
:param directory: Where the configurations are derived from.
4085
:param scope: A specific config to start from.
4087
:param write_access: Whether a write access to the stack will be
4090
# FIXME: scope should allow access to plugin-specific stacks (even
4091
# reduced to the plugin-specific store), related to
4092
# http://pad.lv/788991 -- vila 2011-11-15
4093
if scope is not None:
4094
if scope == 'bazaar':
4095
return GlobalStack()
4096
elif scope == 'locations':
4097
return LocationStack(directory)
4098
elif scope == 'branch':
4100
controldir.ControlDir.open_containing_tree_or_branch(
4103
self.add_cleanup(br.lock_write().unlock)
4104
return br.get_config_stack()
4105
raise errors.NoSuchConfig(scope)
4109
controldir.ControlDir.open_containing_tree_or_branch(
4112
self.add_cleanup(br.lock_write().unlock)
4113
return br.get_config_stack()
4114
except errors.NotBranchError:
4115
return LocationStack(directory)
4117
def _quote_multiline(self, value):
4119
value = '"""' + value + '"""'
4122
def _show_value(self, name, directory, scope):
4123
conf = self._get_stack(directory, scope)
4124
value = conf.get(name, expand=True, convert=False)
4125
if value is not None:
4126
# Quote the value appropriately
4127
value = self._quote_multiline(value)
4128
self.outf.write('%s\n' % (value,))
4130
raise errors.NoSuchConfigOption(name)
4132
def _show_matching_options(self, name, directory, scope):
4133
name = lazy_regex.lazy_compile(name)
4134
# We want any error in the regexp to be raised *now* so we need to
4135
# avoid the delay introduced by the lazy regexp. But, we still do
4136
# want the nicer errors raised by lazy_regex.
4137
name._compile_and_collapse()
4140
conf = self._get_stack(directory, scope)
4141
for store, section in conf.iter_sections():
4142
for oname in section.iter_option_names():
4143
if name.search(oname):
4144
if cur_store_id != store.id:
4145
# Explain where the options are defined
4146
self.outf.write('%s:\n' % (store.id,))
4147
cur_store_id = store.id
4149
if (section.id is not None and cur_section != section.id):
4150
# Display the section id as it appears in the store
4151
# (None doesn't appear by definition)
4152
self.outf.write(' [%s]\n' % (section.id,))
4153
cur_section = section.id
4154
value = section.get(oname, expand=False)
4155
# Quote the value appropriately
4156
value = self._quote_multiline(value)
4157
self.outf.write(' %s = %s\n' % (oname, value))
4159
def _set_config_option(self, name, value, directory, scope):
4160
conf = self._get_stack(directory, scope, write_access=True)
4161
conf.set(name, value)
4162
# Explicitly save the changes
4163
conf.store.save_changes()
4165
def _remove_config_option(self, name, directory, scope):
4167
raise errors.BzrCommandError(
4168
'--remove expects an option to remove.')
4169
conf = self._get_stack(directory, scope, write_access=True)
4172
# Explicitly save the changes
4173
conf.store.save_changes()
4175
raise errors.NoSuchConfigOption(name)
4180
# We need adapters that can build a Store or a Stack in a test context. Test
4181
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4182
# themselves. The builder will receive a test instance and should return a
4183
# ready-to-use store or stack. Plugins that define new store/stacks can also
4184
# register themselves here to be tested against the tests defined in
4185
# breezy.tests.test_config. Note that the builder can be called multiple times
4186
# for the same test.
4188
# The registered object should be a callable receiving a test instance
4189
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4191
test_store_builder_registry = registry.Registry()
4193
# The registered object should be a callable receiving a test instance
4194
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4196
test_stack_builder_registry = registry.Registry()