1508
2147
configobj[name] = value
1510
2149
configobj.setdefault(section, {})[name] = value
2150
for hook in OldConfigHooks['set']:
2151
hook(self, name, value)
2152
self._set_configobj(configobj)
2154
def remove_option(self, option_name, section_name=None):
2155
configobj = self._get_configobj()
2156
if section_name is None:
2157
del configobj[option_name]
2159
del configobj[section_name][option_name]
2160
for hook in OldConfigHooks['remove']:
2161
hook(self, option_name)
1511
2162
self._set_configobj(configobj)
1513
2164
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2166
f = BytesIO(self._transport.get_bytes(self._filename))
2167
for hook in OldConfigHooks['load']:
1516
2170
except errors.NoSuchFile:
2172
except errors.PermissionDenied as e:
2173
trace.warning("Permission denied while trying to open "
2174
"configuration file %s.", urlutils.unescape_for_display(
2175
urlutils.join(self._transport.base, self._filename), "utf-8"))
2178
def _external_url(self):
2179
return urlutils.join(self._transport.external_url(), self._filename)
1519
2181
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2182
f = self._get_config_file()
2185
conf = ConfigObj(f, encoding='utf-8')
2186
except configobj.ConfigObjError as e:
2187
raise errors.ParseConfigError(e.errors, self._external_url())
2188
except UnicodeDecodeError:
2189
raise errors.ConfigContentError(self._external_url())
1522
2194
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2195
out_file = BytesIO()
1524
2196
configobj.write(out_file)
1525
2197
out_file.seek(0)
1526
2198
self._transport.put_file(self._filename, out_file)
2199
for hook in OldConfigHooks['save']:
2203
class Option(object):
2204
"""An option definition.
2206
The option *values* are stored in config files and found in sections.
2208
Here we define various properties about the option itself, its default
2209
value, how to convert it from stores, what to do when invalid values are
2210
encoutered, in which config files it can be stored.
2213
def __init__(self, name, override_from_env=None,
2214
default=None, default_from_env=None,
2215
help=None, from_unicode=None, invalid=None, unquote=True):
2216
"""Build an option definition.
2218
:param name: the name used to refer to the option.
2220
:param override_from_env: A list of environment variables which can
2221
provide override any configuration setting.
2223
:param default: the default value to use when none exist in the config
2224
stores. This is either a string that ``from_unicode`` will convert
2225
into the proper type, a callable returning a unicode string so that
2226
``from_unicode`` can be used on the return value, or a python
2227
object that can be stringified (so only the empty list is supported
2230
:param default_from_env: A list of environment variables which can
2231
provide a default value. 'default' will be used only if none of the
2232
variables specified here are set in the environment.
2234
:param help: a doc string to explain the option to the user.
2236
:param from_unicode: a callable to convert the unicode string
2237
representing the option value in a store or its default value.
2239
:param invalid: the action to be taken when an invalid value is
2240
encountered in a store. This is called only when from_unicode is
2241
invoked to convert a string and returns None or raise ValueError or
2242
TypeError. Accepted values are: None (ignore invalid values),
2243
'warning' (emit a warning), 'error' (emit an error message and
2246
:param unquote: should the unicode value be unquoted before conversion.
2247
This should be used only when the store providing the values cannot
2248
safely unquote them (see http://pad.lv/906897). It is provided so
2249
daughter classes can handle the quoting themselves.
2251
if override_from_env is None:
2252
override_from_env = []
2253
if default_from_env is None:
2254
default_from_env = []
2256
self.override_from_env = override_from_env
2257
# Convert the default value to a unicode string so all values are
2258
# strings internally before conversion (via from_unicode) is attempted.
2261
elif isinstance(default, list):
2262
# Only the empty list is supported
2264
raise AssertionError(
2265
'Only empty lists are supported as default values')
2267
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2268
# Rely on python to convert strings, booleans and integers
2269
self.default = u'%s' % (default,)
2270
elif callable(default):
2271
self.default = default
2273
# other python objects are not expected
2274
raise AssertionError('%r is not supported as a default value'
2276
self.default_from_env = default_from_env
2278
self.from_unicode = from_unicode
2279
self.unquote = unquote
2280
if invalid and invalid not in ('warning', 'error'):
2281
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2282
self.invalid = invalid
2288
def convert_from_unicode(self, store, unicode_value):
2289
if self.unquote and store is not None and unicode_value is not None:
2290
unicode_value = store.unquote(unicode_value)
2291
if self.from_unicode is None or unicode_value is None:
2292
# Don't convert or nothing to convert
2293
return unicode_value
2295
converted = self.from_unicode(unicode_value)
2296
except (ValueError, TypeError):
2297
# Invalid values are ignored
2299
if converted is None and self.invalid is not None:
2300
# The conversion failed
2301
if self.invalid == 'warning':
2302
trace.warning('Value "%s" is not valid for "%s"',
2303
unicode_value, self.name)
2304
elif self.invalid == 'error':
2305
raise errors.ConfigOptionValueError(self.name, unicode_value)
2308
def get_override(self):
2310
for var in self.override_from_env:
2312
# If the env variable is defined, its value takes precedence
2313
value = os.environ[var].decode(osutils.get_user_encoding())
2319
def get_default(self):
2321
for var in self.default_from_env:
2323
# If the env variable is defined, its value is the default one
2324
value = os.environ[var].decode(osutils.get_user_encoding())
2329
# Otherwise, fallback to the value defined at registration
2330
if callable(self.default):
2331
value = self.default()
2332
if not isinstance(value, text_type):
2333
raise AssertionError(
2334
"Callable default value for '%s' should be unicode"
2337
value = self.default
2340
def get_help_topic(self):
2343
def get_help_text(self, additional_see_also=None, plain=True):
2345
from breezy import help_topics
2346
result += help_topics._format_see_also(additional_see_also)
2348
result = help_topics.help_as_plain_text(result)
2352
# Predefined converters to get proper values from store
2354
def bool_from_store(unicode_str):
2355
return ui.bool_from_string(unicode_str)
2358
def int_from_store(unicode_str):
2359
return int(unicode_str)
2362
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2364
def int_SI_from_store(unicode_str):
2365
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2367
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2368
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2371
:return Integer, expanded to its base-10 value if a proper SI unit is
2372
found, None otherwise.
2374
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2375
p = re.compile(regexp, re.IGNORECASE)
2376
m = p.match(unicode_str)
2379
val, _, unit = m.groups()
2383
coeff = _unit_suffixes[unit.upper()]
2385
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2390
def float_from_store(unicode_str):
2391
return float(unicode_str)
2394
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2396
_list_converter_config = configobj.ConfigObj(
2397
{}, encoding='utf-8', list_values=True, interpolation=False)
2400
class ListOption(Option):
2402
def __init__(self, name, default=None, default_from_env=None,
2403
help=None, invalid=None):
2404
"""A list Option definition.
2406
This overrides the base class so the conversion from a unicode string
2407
can take quoting into account.
2409
super(ListOption, self).__init__(
2410
name, default=default, default_from_env=default_from_env,
2411
from_unicode=self.from_unicode, help=help,
2412
invalid=invalid, unquote=False)
2414
def from_unicode(self, unicode_str):
2415
if not isinstance(unicode_str, string_types):
2417
# Now inject our string directly as unicode. All callers got their
2418
# value from configobj, so values that need to be quoted are already
2420
_list_converter_config.reset()
2421
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2422
maybe_list = _list_converter_config['list']
2423
if isinstance(maybe_list, string_types):
2425
# A single value, most probably the user forgot (or didn't care
2426
# to add) the final ','
2429
# The empty string, convert to empty list
2432
# We rely on ConfigObj providing us with a list already
2437
class RegistryOption(Option):
2438
"""Option for a choice from a registry."""
2440
def __init__(self, name, registry, default_from_env=None,
2441
help=None, invalid=None):
2442
"""A registry based Option definition.
2444
This overrides the base class so the conversion from a unicode string
2445
can take quoting into account.
2447
super(RegistryOption, self).__init__(
2448
name, default=lambda: unicode(registry.default_key),
2449
default_from_env=default_from_env,
2450
from_unicode=self.from_unicode, help=help,
2451
invalid=invalid, unquote=False)
2452
self.registry = registry
2454
def from_unicode(self, unicode_str):
2455
if not isinstance(unicode_str, string_types):
2458
return self.registry.get(unicode_str)
2461
"Invalid value %s for %s."
2462
"See help for a list of possible values." % (unicode_str,
2467
ret = [self._help, "\n\nThe following values are supported:\n"]
2468
for key in self.registry.keys():
2469
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2473
_option_ref_re = lazy_regex.lazy_compile('({[^\d\W](?:\.\w|-\w|\w)*})')
2474
"""Describes an expandable option reference.
2476
We want to match the most embedded reference first.
2478
I.e. for '{{foo}}' we will get '{foo}',
2479
for '{bar{baz}}' we will get '{baz}'
2482
def iter_option_refs(string):
2483
# Split isolate refs so every other chunk is a ref
2485
for chunk in _option_ref_re.split(string):
2490
class OptionRegistry(registry.Registry):
2491
"""Register config options by their name.
2493
This overrides ``registry.Registry`` to simplify registration by acquiring
2494
some information from the option object itself.
2497
def _check_option_name(self, option_name):
2498
"""Ensures an option name is valid.
2500
:param option_name: The name to validate.
2502
if _option_ref_re.match('{%s}' % option_name) is None:
2503
raise errors.IllegalOptionName(option_name)
2505
def register(self, option):
2506
"""Register a new option to its name.
2508
:param option: The option to register. Its name is used as the key.
2510
self._check_option_name(option.name)
2511
super(OptionRegistry, self).register(option.name, option,
2514
def register_lazy(self, key, module_name, member_name):
2515
"""Register a new option to be loaded on request.
2517
:param key: the key to request the option later. Since the registration
2518
is lazy, it should be provided and match the option name.
2520
:param module_name: the python path to the module. Such as 'os.path'.
2522
:param member_name: the member of the module to return. If empty or
2523
None, get() will return the module itself.
2525
self._check_option_name(key)
2526
super(OptionRegistry, self).register_lazy(key,
2527
module_name, member_name)
2529
def get_help(self, key=None):
2530
"""Get the help text associated with the given key"""
2531
option = self.get(key)
2532
the_help = option.help
2533
if callable(the_help):
2534
return the_help(self, key)
2538
option_registry = OptionRegistry()
2541
# Registered options in lexicographical order
2543
option_registry.register(
2544
Option('append_revisions_only',
2545
default=None, from_unicode=bool_from_store, invalid='warning',
2547
Whether to only append revisions to the mainline.
2549
If this is set to true, then it is not possible to change the
2550
existing mainline of the branch.
2552
option_registry.register(
2553
ListOption('acceptable_keys',
2556
List of GPG key patterns which are acceptable for verification.
2558
option_registry.register(
2559
Option('add.maximum_file_size',
2560
default=u'20MB', from_unicode=int_SI_from_store,
2562
Size above which files should be added manually.
2564
Files below this size are added automatically when using ``bzr add`` without
2567
A negative value means disable the size check.
2569
option_registry.register(
2571
default=None, from_unicode=bool_from_store,
2573
Is the branch bound to ``bound_location``.
2575
If set to "True", the branch should act as a checkout, and push each commit to
2576
the bound_location. This option is normally set by ``bind``/``unbind``.
2578
See also: bound_location.
2580
option_registry.register(
2581
Option('bound_location',
2584
The location that commits should go to when acting as a checkout.
2586
This option is normally set by ``bind``.
2590
option_registry.register(
2591
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2593
Whether revisions associated with tags should be fetched.
2595
option_registry.register_lazy(
2596
'bzr.transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2597
option_registry.register(
2598
Option('bzr.workingtree.worth_saving_limit', default=10,
2599
from_unicode=int_from_store, invalid='warning',
2601
How many changes before saving the dirstate.
2603
-1 means that we will never rewrite the dirstate file for only
2604
stat-cache changes. Regardless of this setting, we will always rewrite
2605
the dirstate file if a file is added/removed/renamed/etc. This flag only
2606
affects the behavior of updating the dirstate file after we notice that
2607
a file has been touched.
2609
option_registry.register(
2610
Option('bugtracker', default=None,
2612
Default bug tracker to use.
2614
This bug tracker will be used for example when marking bugs
2615
as fixed using ``bzr commit --fixes``, if no explicit
2616
bug tracker was specified.
2618
option_registry.register(
2619
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2620
from_unicode=signature_policy_from_unicode,
2622
GPG checking policy.
2624
Possible values: require, ignore, check-available (default)
2626
this option will control whether bzr will require good gpg
2627
signatures, ignore them, or check them if they are
2630
option_registry.register(
2631
Option('child_submit_format',
2632
help='''The preferred format of submissions to this branch.'''))
2633
option_registry.register(
2634
Option('child_submit_to',
2635
help='''Where submissions to this branch are mailed to.'''))
2636
option_registry.register(
2637
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2638
from_unicode=signing_policy_from_unicode,
2642
Possible values: always, never, when-required (default)
2644
This option controls whether bzr will always create
2645
gpg signatures or not on commits.
2647
option_registry.register(
2648
Option('dirstate.fdatasync', default=True,
2649
from_unicode=bool_from_store,
2651
Flush dirstate changes onto physical disk?
2653
If true (default), working tree metadata changes are flushed through the
2654
OS buffers to physical disk. This is somewhat slower, but means data
2655
should not be lost if the machine crashes. See also repository.fdatasync.
2657
option_registry.register(
2658
ListOption('debug_flags', default=[],
2659
help='Debug flags to activate.'))
2660
option_registry.register(
2661
Option('default_format', default='2a',
2662
help='Format used when creating branches.'))
2663
option_registry.register(
2664
Option('dpush_strict', default=None,
2665
from_unicode=bool_from_store,
2667
The default value for ``dpush --strict``.
2669
If present, defines the ``--strict`` option default value for checking
2670
uncommitted changes before pushing into a different VCS without any
2671
custom bzr metadata.
2673
option_registry.register(
2675
help='The command called to launch an editor to enter a message.'))
2676
option_registry.register(
2677
Option('email', override_from_env=['BRZ_EMAIL'], default=default_email,
2678
help='The users identity'))
2679
option_registry.register(
2680
Option('gpg_signing_command',
2683
Program to use use for creating signatures.
2685
This should support at least the -u and --clearsign options.
2687
option_registry.register(
2688
Option('gpg_signing_key',
2691
GPG key to use for signing.
2693
This defaults to the first key associated with the users email.
2695
option_registry.register(
2696
Option('ignore_missing_extensions', default=False,
2697
from_unicode=bool_from_store,
2699
Control the missing extensions warning display.
2701
The warning will not be emitted if set to True.
2703
option_registry.register(
2705
help='Language to translate messages into.'))
2706
option_registry.register(
2707
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2709
Steal locks that appears to be dead.
2711
If set to True, bzr will check if a lock is supposed to be held by an
2712
active process from the same user on the same machine. If the user and
2713
machine match, but no process with the given PID is active, then bzr
2714
will automatically break the stale lock, and create a new lock for
2716
Otherwise, bzr will prompt as normal to break the lock.
2718
option_registry.register(
2719
Option('log_format', default='long',
2721
Log format to use when displaying revisions.
2723
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2724
may be provided by plugins.
2726
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2728
option_registry.register(
2729
Option('output_encoding',
2730
help= 'Unicode encoding for output'
2731
' (terminal encoding if not specified).'))
2732
option_registry.register(
2733
Option('parent_location',
2736
The location of the default branch for pull or merge.
2738
This option is normally set when creating a branch, the first ``pull`` or by
2739
``pull --remember``.
2741
option_registry.register(
2742
Option('post_commit', default=None,
2744
Post commit functions.
2746
An ordered list of python functions to call, separated by spaces.
2748
Each function takes branch, rev_id as parameters.
2750
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2752
option_registry.register(
2753
Option('public_branch',
2756
A publically-accessible version of this branch.
2758
This implies that the branch setting this option is not publically-accessible.
2759
Used and set by ``bzr send``.
2761
option_registry.register(
2762
Option('push_location',
2765
The location of the default branch for push.
2767
This option is normally set by the first ``push`` or ``push --remember``.
2769
option_registry.register(
2770
Option('push_strict', default=None,
2771
from_unicode=bool_from_store,
2773
The default value for ``push --strict``.
2775
If present, defines the ``--strict`` option default value for checking
2776
uncommitted changes before sending a merge directive.
2778
option_registry.register(
2779
Option('repository.fdatasync', default=True,
2780
from_unicode=bool_from_store,
2782
Flush repository changes onto physical disk?
2784
If true (default), repository changes are flushed through the OS buffers
2785
to physical disk. This is somewhat slower, but means data should not be
2786
lost if the machine crashes. See also dirstate.fdatasync.
2788
option_registry.register_lazy('smtp_server',
2789
'breezy.smtp_connection', 'smtp_server')
2790
option_registry.register_lazy('smtp_password',
2791
'breezy.smtp_connection', 'smtp_password')
2792
option_registry.register_lazy('smtp_username',
2793
'breezy.smtp_connection', 'smtp_username')
2794
option_registry.register(
2795
Option('selftest.timeout',
2797
from_unicode=int_from_store,
2798
help='Abort selftest if one test takes longer than this many seconds',
2801
option_registry.register(
2802
Option('send_strict', default=None,
2803
from_unicode=bool_from_store,
2805
The default value for ``send --strict``.
2807
If present, defines the ``--strict`` option default value for checking
2808
uncommitted changes before sending a bundle.
2811
option_registry.register(
2812
Option('serve.client_timeout',
2813
default=300.0, from_unicode=float_from_store,
2814
help="If we wait for a new request from a client for more than"
2815
" X seconds, consider the client idle, and hangup."))
2816
option_registry.register(
2817
Option('stacked_on_location',
2819
help="""The location where this branch is stacked on."""))
2820
option_registry.register(
2821
Option('submit_branch',
2824
The branch you intend to submit your current work to.
2826
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2827
by the ``submit:`` revision spec.
2829
option_registry.register(
2831
help='''Where submissions from this branch are mailed to.'''))
2832
option_registry.register(
2833
ListOption('suppress_warnings',
2835
help="List of warning classes to suppress."))
2836
option_registry.register(
2837
Option('validate_signatures_in_log', default=False,
2838
from_unicode=bool_from_store, invalid='warning',
2839
help='''Whether to validate signatures in brz log.'''))
2840
option_registry.register_lazy('ssl.ca_certs',
2841
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2843
option_registry.register_lazy('ssl.cert_reqs',
2844
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2847
class Section(object):
2848
"""A section defines a dict of option name => value.
2850
This is merely a read-only dict which can add some knowledge about the
2851
options. It is *not* a python dict object though and doesn't try to mimic
2855
def __init__(self, section_id, options):
2856
self.id = section_id
2857
# We re-use the dict-like object received
2858
self.options = options
2860
def get(self, name, default=None, expand=True):
2861
return self.options.get(name, default)
2863
def iter_option_names(self):
2864
for k in self.options.keys():
2868
# Mostly for debugging use
2869
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2872
_NewlyCreatedOption = object()
2873
"""Was the option created during the MutableSection lifetime"""
2874
_DeletedOption = object()
2875
"""Was the option deleted during the MutableSection lifetime"""
2878
class MutableSection(Section):
2879
"""A section allowing changes and keeping track of the original values."""
2881
def __init__(self, section_id, options):
2882
super(MutableSection, self).__init__(section_id, options)
2883
self.reset_changes()
2885
def set(self, name, value):
2886
if name not in self.options:
2887
# This is a new option
2888
self.orig[name] = _NewlyCreatedOption
2889
elif name not in self.orig:
2890
self.orig[name] = self.get(name, None)
2891
self.options[name] = value
2893
def remove(self, name):
2894
if name not in self.orig and name in self.options:
2895
self.orig[name] = self.get(name, None)
2896
del self.options[name]
2898
def reset_changes(self):
2901
def apply_changes(self, dirty, store):
2902
"""Apply option value changes.
2904
``self`` has been reloaded from the persistent storage. ``dirty``
2905
contains the changes made since the previous loading.
2907
:param dirty: the mutable section containing the changes.
2909
:param store: the store containing the section
2911
for k, expected in dirty.orig.items():
2912
actual = dirty.get(k, _DeletedOption)
2913
reloaded = self.get(k, _NewlyCreatedOption)
2914
if actual is _DeletedOption:
2915
if k in self.options:
2919
# Report concurrent updates in an ad-hoc way. This should only
2920
# occurs when different processes try to update the same option
2921
# which is not supported (as in: the config framework is not meant
2922
# to be used as a sharing mechanism).
2923
if expected != reloaded:
2924
if actual is _DeletedOption:
2925
actual = '<DELETED>'
2926
if reloaded is _NewlyCreatedOption:
2927
reloaded = '<CREATED>'
2928
if expected is _NewlyCreatedOption:
2929
expected = '<CREATED>'
2930
# Someone changed the value since we get it from the persistent
2932
trace.warning(gettext(
2933
"Option {0} in section {1} of {2} was changed"
2934
" from {3} to {4}. The {5} value will be saved.".format(
2935
k, self.id, store.external_url(), expected,
2937
# No need to keep track of these changes
2938
self.reset_changes()
2941
class Store(object):
2942
"""Abstract interface to persistent storage for configuration options."""
2944
readonly_section_class = Section
2945
mutable_section_class = MutableSection
2948
# Which sections need to be saved (by section id). We use a dict here
2949
# so the dirty sections can be shared by multiple callers.
2950
self.dirty_sections = {}
2952
def is_loaded(self):
2953
"""Returns True if the Store has been loaded.
2955
This is used to implement lazy loading and ensure the persistent
2956
storage is queried only when needed.
2958
raise NotImplementedError(self.is_loaded)
2961
"""Loads the Store from persistent storage."""
2962
raise NotImplementedError(self.load)
2964
def _load_from_string(self, bytes):
2965
"""Create a store from a string in configobj syntax.
2967
:param bytes: A string representing the file content.
2969
raise NotImplementedError(self._load_from_string)
2972
"""Unloads the Store.
2974
This should make is_loaded() return False. This is used when the caller
2975
knows that the persistent storage has changed or may have change since
2978
raise NotImplementedError(self.unload)
2980
def quote(self, value):
2981
"""Quote a configuration option value for storing purposes.
2983
This allows Stacks to present values as they will be stored.
2987
def unquote(self, value):
2988
"""Unquote a configuration option value into unicode.
2990
The received value is quoted as stored.
2995
"""Saves the Store to persistent storage."""
2996
raise NotImplementedError(self.save)
2998
def _need_saving(self):
2999
for s in self.dirty_sections.values():
3001
# At least one dirty section contains a modification
3005
def apply_changes(self, dirty_sections):
3006
"""Apply changes from dirty sections while checking for coherency.
3008
The Store content is discarded and reloaded from persistent storage to
3009
acquire up-to-date values.
3011
Dirty sections are MutableSection which kept track of the value they
3012
are expected to update.
3014
# We need an up-to-date version from the persistent storage, unload the
3015
# store. The reload will occur when needed (triggered by the first
3016
# get_mutable_section() call below.
3018
# Apply the changes from the preserved dirty sections
3019
for section_id, dirty in dirty_sections.items():
3020
clean = self.get_mutable_section(section_id)
3021
clean.apply_changes(dirty, self)
3022
# Everything is clean now
3023
self.dirty_sections = {}
3025
def save_changes(self):
3026
"""Saves the Store to persistent storage if changes occurred.
3028
Apply the changes recorded in the mutable sections to a store content
3029
refreshed from persistent storage.
3031
raise NotImplementedError(self.save_changes)
3033
def external_url(self):
3034
raise NotImplementedError(self.external_url)
3036
def get_sections(self):
3037
"""Returns an ordered iterable of existing sections.
3039
:returns: An iterable of (store, section).
3041
raise NotImplementedError(self.get_sections)
3043
def get_mutable_section(self, section_id=None):
3044
"""Returns the specified mutable section.
3046
:param section_id: The section identifier
3048
raise NotImplementedError(self.get_mutable_section)
3051
# Mostly for debugging use
3052
return "<config.%s(%s)>" % (self.__class__.__name__,
3053
self.external_url())
3056
class CommandLineStore(Store):
3057
"A store to carry command line overrides for the config options."""
3059
def __init__(self, opts=None):
3060
super(CommandLineStore, self).__init__()
3067
# The dict should be cleared but not replaced so it can be shared.
3068
self.options.clear()
3070
def _from_cmdline(self, overrides):
3071
# Reset before accepting new definitions
3073
for over in overrides:
3075
name, value = over.split('=', 1)
3077
raise errors.BzrCommandError(
3078
gettext("Invalid '%s', should be of the form 'name=value'")
3080
self.options[name] = value
3082
def external_url(self):
3083
# Not an url but it makes debugging easier and is never needed
3087
def get_sections(self):
3088
yield self, self.readonly_section_class(None, self.options)
3091
class IniFileStore(Store):
3092
"""A config Store using ConfigObj for storage.
3094
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3095
serialize/deserialize the config file.
3099
"""A config Store using ConfigObj for storage.
3101
super(IniFileStore, self).__init__()
3102
self._config_obj = None
3104
def is_loaded(self):
3105
return self._config_obj != None
3108
self._config_obj = None
3109
self.dirty_sections = {}
3111
def _load_content(self):
3112
"""Load the config file bytes.
3114
This should be provided by subclasses
3116
:return: Byte string
3118
raise NotImplementedError(self._load_content)
3120
def _save_content(self, content):
3121
"""Save the config file bytes.
3123
This should be provided by subclasses
3125
:param content: Config file bytes to write
3127
raise NotImplementedError(self._save_content)
3130
"""Load the store from the associated file."""
3131
if self.is_loaded():
3133
content = self._load_content()
3134
self._load_from_string(content)
3135
for hook in ConfigHooks['load']:
3138
def _load_from_string(self, bytes):
3139
"""Create a config store from a string.
3141
:param bytes: A string representing the file content.
3143
if self.is_loaded():
3144
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3145
co_input = BytesIO(bytes)
3147
# The config files are always stored utf8-encoded
3148
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3150
except configobj.ConfigObjError as e:
3151
self._config_obj = None
3152
raise errors.ParseConfigError(e.errors, self.external_url())
3153
except UnicodeDecodeError:
3154
raise errors.ConfigContentError(self.external_url())
3156
def save_changes(self):
3157
if not self.is_loaded():
3160
if not self._need_saving():
3162
# Preserve the current version
3163
dirty_sections = self.dirty_sections.copy()
3164
self.apply_changes(dirty_sections)
3165
# Save to the persistent storage
3169
if not self.is_loaded():
3173
self._config_obj.write(out)
3174
self._save_content(out.getvalue())
3175
for hook in ConfigHooks['save']:
3178
def get_sections(self):
3179
"""Get the configobj section in the file order.
3181
:returns: An iterable of (store, section).
3183
# We need a loaded store
3186
except (errors.NoSuchFile, errors.PermissionDenied):
3187
# If the file can't be read, there is no sections
3189
cobj = self._config_obj
3191
yield self, self.readonly_section_class(None, cobj)
3192
for section_name in cobj.sections:
3194
self.readonly_section_class(section_name,
3195
cobj[section_name]))
3197
def get_mutable_section(self, section_id=None):
3198
# We need a loaded store
3201
except errors.NoSuchFile:
3202
# The file doesn't exist, let's pretend it was empty
3203
self._load_from_string('')
3204
if section_id in self.dirty_sections:
3205
# We already created a mutable section for this id
3206
return self.dirty_sections[section_id]
3207
if section_id is None:
3208
section = self._config_obj
3210
section = self._config_obj.setdefault(section_id, {})
3211
mutable_section = self.mutable_section_class(section_id, section)
3212
# All mutable sections can become dirty
3213
self.dirty_sections[section_id] = mutable_section
3214
return mutable_section
3216
def quote(self, value):
3218
# configobj conflates automagical list values and quoting
3219
self._config_obj.list_values = True
3220
return self._config_obj._quote(value)
3222
self._config_obj.list_values = False
3224
def unquote(self, value):
3225
if value and isinstance(value, string_types):
3226
# _unquote doesn't handle None nor empty strings nor anything that
3227
# is not a string, really.
3228
value = self._config_obj._unquote(value)
3231
def external_url(self):
3232
# Since an IniFileStore can be used without a file (at least in tests),
3233
# it's better to provide something than raising a NotImplementedError.
3234
# All daughter classes are supposed to provide an implementation
3236
return 'In-Process Store, no URL'
3239
class TransportIniFileStore(IniFileStore):
3240
"""IniFileStore that loads files from a transport.
3242
:ivar transport: The transport object where the config file is located.
3244
:ivar file_name: The config file basename in the transport directory.
3247
def __init__(self, transport, file_name):
3248
"""A Store using a ini file on a Transport
3250
:param transport: The transport object where the config file is located.
3251
:param file_name: The config file basename in the transport directory.
3253
super(TransportIniFileStore, self).__init__()
3254
self.transport = transport
3255
self.file_name = file_name
3257
def _load_content(self):
3259
return self.transport.get_bytes(self.file_name)
3260
except errors.PermissionDenied:
3261
trace.warning("Permission denied while trying to load "
3262
"configuration store %s.", self.external_url())
3265
def _save_content(self, content):
3266
self.transport.put_bytes(self.file_name, content)
3268
def external_url(self):
3269
# FIXME: external_url should really accepts an optional relpath
3270
# parameter (bug #750169) :-/ -- vila 2011-04-04
3271
# The following will do in the interim but maybe we don't want to
3272
# expose a path here but rather a config ID and its associated
3273
# object </hand wawe>.
3274
return urlutils.join(
3275
self.transport.external_url(), urlutils.escape(self.file_name))
3278
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3279
# unlockable stores for use with objects that can already ensure the locking
3280
# (think branches). If different stores (not based on ConfigObj) are created,
3281
# they may face the same issue.
3284
class LockableIniFileStore(TransportIniFileStore):
3285
"""A ConfigObjStore using locks on save to ensure store integrity."""
3287
def __init__(self, transport, file_name, lock_dir_name=None):
3288
"""A config Store using ConfigObj for storage.
3290
:param transport: The transport object where the config file is located.
3292
:param file_name: The config file basename in the transport directory.
3294
if lock_dir_name is None:
3295
lock_dir_name = 'lock'
3296
self.lock_dir_name = lock_dir_name
3297
super(LockableIniFileStore, self).__init__(transport, file_name)
3298
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3300
def lock_write(self, token=None):
3301
"""Takes a write lock in the directory containing the config file.
3303
If the directory doesn't exist it is created.
3305
# FIXME: This doesn't check the ownership of the created directories as
3306
# ensure_config_dir_exists does. It should if the transport is local
3307
# -- vila 2011-04-06
3308
self.transport.create_prefix()
3309
return self._lock.lock_write(token)
3314
def break_lock(self):
3315
self._lock.break_lock()
3319
# We need to be able to override the undecorated implementation
3320
self.save_without_locking()
3322
def save_without_locking(self):
3323
super(LockableIniFileStore, self).save()
3326
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3327
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3328
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3330
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3331
# functions or a registry will make it easier and clearer for tests, focusing
3332
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3333
# on a poolie's remark)
3334
class GlobalStore(LockableIniFileStore):
3335
"""A config store for global options.
3337
There is a single GlobalStore for a given process.
3340
def __init__(self, possible_transports=None):
3341
t = transport.get_transport_from_path(
3342
config_dir(), possible_transports=possible_transports)
3343
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3347
class LocationStore(LockableIniFileStore):
3348
"""A config store for options specific to a location.
3350
There is a single LocationStore for a given process.
3353
def __init__(self, possible_transports=None):
3354
t = transport.get_transport_from_path(
3355
config_dir(), possible_transports=possible_transports)
3356
super(LocationStore, self).__init__(t, 'locations.conf')
3357
self.id = 'locations'
3360
class BranchStore(TransportIniFileStore):
3361
"""A config store for branch options.
3363
There is a single BranchStore for a given branch.
3366
def __init__(self, branch):
3367
super(BranchStore, self).__init__(branch.control_transport,
3369
self.branch = branch
3373
class ControlStore(LockableIniFileStore):
3375
def __init__(self, bzrdir):
3376
super(ControlStore, self).__init__(bzrdir.transport,
3378
lock_dir_name='branch_lock')
3382
class SectionMatcher(object):
3383
"""Select sections into a given Store.
3385
This is intended to be used to postpone getting an iterable of sections
3389
def __init__(self, store):
3392
def get_sections(self):
3393
# This is where we require loading the store so we can see all defined
3395
sections = self.store.get_sections()
3396
# Walk the revisions in the order provided
3397
for store, s in sections:
3401
def match(self, section):
3402
"""Does the proposed section match.
3404
:param section: A Section object.
3406
:returns: True if the section matches, False otherwise.
3408
raise NotImplementedError(self.match)
3411
class NameMatcher(SectionMatcher):
3413
def __init__(self, store, section_id):
3414
super(NameMatcher, self).__init__(store)
3415
self.section_id = section_id
3417
def match(self, section):
3418
return section.id == self.section_id
3421
class LocationSection(Section):
3423
def __init__(self, section, extra_path, branch_name=None):
3424
super(LocationSection, self).__init__(section.id, section.options)
3425
self.extra_path = extra_path
3426
if branch_name is None:
3428
self.locals = {'relpath': extra_path,
3429
'basename': urlutils.basename(extra_path),
3430
'branchname': branch_name}
3432
def get(self, name, default=None, expand=True):
3433
value = super(LocationSection, self).get(name, default)
3434
if value is not None and expand:
3435
policy_name = self.get(name + ':policy', None)
3436
policy = _policy_value.get(policy_name, POLICY_NONE)
3437
if policy == POLICY_APPENDPATH:
3438
value = urlutils.join(value, self.extra_path)
3439
# expand section local options right now (since POLICY_APPENDPATH
3440
# will never add options references, it's ok to expand after it).
3442
for is_ref, chunk in iter_option_refs(value):
3444
chunks.append(chunk)
3447
if ref in self.locals:
3448
chunks.append(self.locals[ref])
3450
chunks.append(chunk)
3451
value = ''.join(chunks)
3455
class StartingPathMatcher(SectionMatcher):
3456
"""Select sections for a given location respecting the Store order."""
3458
# FIXME: Both local paths and urls can be used for section names as well as
3459
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3460
# inherited the fuzziness from the previous ``LocationConfig``
3461
# implementation. We probably need to revisit which encoding is allowed for
3462
# both ``location`` and section names and how we normalize
3463
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3464
# related too. -- vila 2012-01-04
3466
def __init__(self, store, location):
3467
super(StartingPathMatcher, self).__init__(store)
3468
if location.startswith('file://'):
3469
location = urlutils.local_path_from_url(location)
3470
self.location = location
3472
def get_sections(self):
3473
"""Get all sections matching ``location`` in the store.
3475
The most generic sections are described first in the store, then more
3476
specific ones can be provided for reduced scopes.
3478
The returned section are therefore returned in the reversed order so
3479
the most specific ones can be found first.
3481
location_parts = self.location.rstrip('/').split('/')
3483
# Later sections are more specific, they should be returned first
3484
for _, section in reversed(list(store.get_sections())):
3485
if section.id is None:
3486
# The no-name section is always included if present
3487
yield store, LocationSection(section, self.location)
3489
section_path = section.id
3490
if section_path.startswith('file://'):
3491
# the location is already a local path or URL, convert the
3492
# section id to the same format
3493
section_path = urlutils.local_path_from_url(section_path)
3494
if (self.location.startswith(section_path)
3495
or fnmatch.fnmatch(self.location, section_path)):
3496
section_parts = section_path.rstrip('/').split('/')
3497
extra_path = '/'.join(location_parts[len(section_parts):])
3498
yield store, LocationSection(section, extra_path)
3501
class LocationMatcher(SectionMatcher):
3503
def __init__(self, store, location):
3504
super(LocationMatcher, self).__init__(store)
3505
url, params = urlutils.split_segment_parameters(location)
3506
if location.startswith('file://'):
3507
location = urlutils.local_path_from_url(location)
3508
self.location = location
3509
branch_name = params.get('branch')
3510
if branch_name is None:
3511
self.branch_name = urlutils.basename(self.location)
3513
self.branch_name = urlutils.unescape(branch_name)
3515
def _get_matching_sections(self):
3516
"""Get all sections matching ``location``."""
3517
# We slightly diverge from LocalConfig here by allowing the no-name
3518
# section as the most generic one and the lower priority.
3519
no_name_section = None
3521
# Filter out the no_name_section so _iter_for_location_by_parts can be
3522
# used (it assumes all sections have a name).
3523
for _, section in self.store.get_sections():
3524
if section.id is None:
3525
no_name_section = section
3527
all_sections.append(section)
3528
# Unfortunately _iter_for_location_by_parts deals with section names so
3529
# we have to resync.
3530
filtered_sections = _iter_for_location_by_parts(
3531
[s.id for s in all_sections], self.location)
3532
iter_all_sections = iter(all_sections)
3533
matching_sections = []
3534
if no_name_section is not None:
3535
matching_sections.append(
3536
(0, LocationSection(no_name_section, self.location)))
3537
for section_id, extra_path, length in filtered_sections:
3538
# a section id is unique for a given store so it's safe to take the
3539
# first matching section while iterating. Also, all filtered
3540
# sections are part of 'all_sections' and will always be found
3543
section = next(iter_all_sections)
3544
if section_id == section.id:
3545
section = LocationSection(section, extra_path,
3547
matching_sections.append((length, section))
3549
return matching_sections
3551
def get_sections(self):
3552
# Override the default implementation as we want to change the order
3553
# We want the longest (aka more specific) locations first
3554
sections = sorted(self._get_matching_sections(),
3555
key=lambda match: (match[0], match[1].id),
3557
# Sections mentioning 'ignore_parents' restrict the selection
3558
for _, section in sections:
3559
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3560
ignore = section.get('ignore_parents', None)
3561
if ignore is not None:
3562
ignore = ui.bool_from_string(ignore)
3565
# Finally, we have a valid section
3566
yield self.store, section
3569
# FIXME: _shared_stores should be an attribute of a library state once a
3570
# library_state object is always available.
3572
_shared_stores_at_exit_installed = False
3574
class Stack(object):
3575
"""A stack of configurations where an option can be defined"""
3577
def __init__(self, sections_def, store=None, mutable_section_id=None):
3578
"""Creates a stack of sections with an optional store for changes.
3580
:param sections_def: A list of Section or callables that returns an
3581
iterable of Section. This defines the Sections for the Stack and
3582
can be called repeatedly if needed.
3584
:param store: The optional Store where modifications will be
3585
recorded. If none is specified, no modifications can be done.
3587
:param mutable_section_id: The id of the MutableSection where changes
3588
are recorded. This requires the ``store`` parameter to be
3591
self.sections_def = sections_def
3593
self.mutable_section_id = mutable_section_id
3595
def iter_sections(self):
3596
"""Iterate all the defined sections."""
3597
# Ensuring lazy loading is achieved by delaying section matching (which
3598
# implies querying the persistent storage) until it can't be avoided
3599
# anymore by using callables to describe (possibly empty) section
3601
for sections in self.sections_def:
3602
for store, section in sections():
3603
yield store, section
3605
def get(self, name, expand=True, convert=True):
3606
"""Return the *first* option value found in the sections.
3608
This is where we guarantee that sections coming from Store are loaded
3609
lazily: the loading is delayed until we need to either check that an
3610
option exists or get its value, which in turn may require to discover
3611
in which sections it can be defined. Both of these (section and option
3612
existence) require loading the store (even partially).
3614
:param name: The queried option.
3616
:param expand: Whether options references should be expanded.
3618
:param convert: Whether the option value should be converted from
3619
unicode (do nothing for non-registered options).
3621
:returns: The value of the option.
3623
# FIXME: No caching of options nor sections yet -- vila 20110503
3625
found_store = None # Where the option value has been found
3626
# If the option is registered, it may provide additional info about
3629
opt = option_registry.get(name)
3634
def expand_and_convert(val):
3635
# This may need to be called in different contexts if the value is
3636
# None or ends up being None during expansion or conversion.
3639
if isinstance(val, string_types):
3640
val = self._expand_options_in_string(val)
3642
trace.warning('Cannot expand "%s":'
3643
' %s does not support option expansion'
3644
% (name, type(val)))
3646
val = found_store.unquote(val)
3648
val = opt.convert_from_unicode(found_store, val)
3651
# First of all, check if the environment can override the configuration
3653
if opt is not None and opt.override_from_env:
3654
value = opt.get_override()
3655
value = expand_and_convert(value)
3657
for store, section in self.iter_sections():
3658
value = section.get(name)
3659
if value is not None:
3662
value = expand_and_convert(value)
3663
if opt is not None and value is None:
3664
# If the option is registered, it may provide a default value
3665
value = opt.get_default()
3666
value = expand_and_convert(value)
3667
for hook in ConfigHooks['get']:
3668
hook(self, name, value)
3671
def expand_options(self, string, env=None):
3672
"""Expand option references in the string in the configuration context.
3674
:param string: The string containing option(s) to expand.
3676
:param env: An option dict defining additional configuration options or
3677
overriding existing ones.
3679
:returns: The expanded string.
3681
return self._expand_options_in_string(string, env)
3683
def _expand_options_in_string(self, string, env=None, _refs=None):
3684
"""Expand options in the string in the configuration context.
3686
:param string: The string to be expanded.
3688
:param env: An option dict defining additional configuration options or
3689
overriding existing ones.
3691
:param _refs: Private list (FIFO) containing the options being expanded
3694
:returns: The expanded string.
3697
# Not much to expand there
3700
# What references are currently resolved (to detect loops)
3703
# We need to iterate until no more refs appear ({{foo}} will need two
3704
# iterations for example).
3709
for is_ref, chunk in iter_option_refs(result):
3711
chunks.append(chunk)
3716
raise errors.OptionExpansionLoop(string, _refs)
3718
value = self._expand_option(name, env, _refs)
3720
raise errors.ExpandingUnknownOption(name, string)
3721
chunks.append(value)
3723
result = ''.join(chunks)
3726
def _expand_option(self, name, env, _refs):
3727
if env is not None and name in env:
3728
# Special case, values provided in env takes precedence over
3732
value = self.get(name, expand=False, convert=False)
3733
value = self._expand_options_in_string(value, env, _refs)
3736
def _get_mutable_section(self):
3737
"""Get the MutableSection for the Stack.
3739
This is where we guarantee that the mutable section is lazily loaded:
3740
this means we won't load the corresponding store before setting a value
3741
or deleting an option. In practice the store will often be loaded but
3742
this helps catching some programming errors.
3745
section = store.get_mutable_section(self.mutable_section_id)
3746
return store, section
3748
def set(self, name, value):
3749
"""Set a new value for the option."""
3750
store, section = self._get_mutable_section()
3751
section.set(name, store.quote(value))
3752
for hook in ConfigHooks['set']:
3753
hook(self, name, value)
3755
def remove(self, name):
3756
"""Remove an existing option."""
3757
_, section = self._get_mutable_section()
3758
section.remove(name)
3759
for hook in ConfigHooks['remove']:
3763
# Mostly for debugging use
3764
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3766
def _get_overrides(self):
3767
# FIXME: Hack around library_state.initialize never called
3768
if breezy.global_state is not None:
3769
return breezy.global_state.cmdline_overrides.get_sections()
3772
def get_shared_store(self, store, state=None):
3773
"""Get a known shared store.
3775
Store urls uniquely identify them and are used to ensure a single copy
3776
is shared across all users.
3778
:param store: The store known to the caller.
3780
:param state: The library state where the known stores are kept.
3782
:returns: The store received if it's not a known one, an already known
3786
state = breezy.global_state
3788
global _shared_stores_at_exit_installed
3789
stores = _shared_stores
3790
def save_config_changes():
3791
for k, store in stores.items():
3792
store.save_changes()
3793
if not _shared_stores_at_exit_installed:
3794
# FIXME: Ugly hack waiting for library_state to always be
3795
# available. -- vila 20120731
3797
atexit.register(save_config_changes)
3798
_shared_stores_at_exit_installed = True
3800
stores = state.config_stores
3801
url = store.external_url()
3809
class MemoryStack(Stack):
3810
"""A configuration stack defined from a string.
3812
This is mainly intended for tests and requires no disk resources.
3815
def __init__(self, content=None):
3816
"""Create an in-memory stack from a given content.
3818
It uses a single store based on configobj and support reading and
3821
:param content: The initial content of the store. If None, the store is
3822
not loaded and ``_load_from_string`` can and should be used if
3825
store = IniFileStore()
3826
if content is not None:
3827
store._load_from_string(content)
3828
super(MemoryStack, self).__init__(
3829
[store.get_sections], store)
3832
class _CompatibleStack(Stack):
3833
"""Place holder for compatibility with previous design.
3835
This is intended to ease the transition from the Config-based design to the
3836
Stack-based design and should not be used nor relied upon by plugins.
3838
One assumption made here is that the daughter classes will all use Stores
3839
derived from LockableIniFileStore).
3841
It implements set() and remove () by re-loading the store before applying
3842
the modification and saving it.
3844
The long term plan being to implement a single write by store to save
3845
all modifications, this class should not be used in the interim.
3848
def set(self, name, value):
3851
super(_CompatibleStack, self).set(name, value)
3852
# Force a write to persistent storage
3855
def remove(self, name):
3858
super(_CompatibleStack, self).remove(name)
3859
# Force a write to persistent storage
3863
class GlobalStack(Stack):
3864
"""Global options only stack.
3866
The following sections are queried:
3868
* command-line overrides,
3870
* the 'DEFAULT' section in bazaar.conf
3872
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3877
gstore = self.get_shared_store(GlobalStore())
3878
super(GlobalStack, self).__init__(
3879
[self._get_overrides,
3880
NameMatcher(gstore, 'DEFAULT').get_sections],
3881
gstore, mutable_section_id='DEFAULT')
3884
class LocationStack(Stack):
3885
"""Per-location options falling back to global options stack.
3888
The following sections are queried:
3890
* command-line overrides,
3892
* the sections matching ``location`` in ``locations.conf``, the order being
3893
defined by the number of path components in the section glob, higher
3894
numbers first (from most specific section to most generic).
3896
* the 'DEFAULT' section in bazaar.conf
3898
This stack will use the ``location`` section in locations.conf as its
3902
def __init__(self, location):
3903
"""Make a new stack for a location and global configuration.
3905
:param location: A URL prefix to """
3906
lstore = self.get_shared_store(LocationStore())
3907
if location.startswith('file://'):
3908
location = urlutils.local_path_from_url(location)
3909
gstore = self.get_shared_store(GlobalStore())
3910
super(LocationStack, self).__init__(
3911
[self._get_overrides,
3912
LocationMatcher(lstore, location).get_sections,
3913
NameMatcher(gstore, 'DEFAULT').get_sections],
3914
lstore, mutable_section_id=location)
3917
class BranchStack(Stack):
3918
"""Per-location options falling back to branch then global options stack.
3920
The following sections are queried:
3922
* command-line overrides,
3924
* the sections matching ``location`` in ``locations.conf``, the order being
3925
defined by the number of path components in the section glob, higher
3926
numbers first (from most specific section to most generic),
3928
* the no-name section in branch.conf,
3930
* the ``DEFAULT`` section in ``bazaar.conf``.
3932
This stack will use the no-name section in ``branch.conf`` as its
3936
def __init__(self, branch):
3937
lstore = self.get_shared_store(LocationStore())
3938
bstore = branch._get_config_store()
3939
gstore = self.get_shared_store(GlobalStore())
3940
super(BranchStack, self).__init__(
3941
[self._get_overrides,
3942
LocationMatcher(lstore, branch.base).get_sections,
3943
NameMatcher(bstore, None).get_sections,
3944
NameMatcher(gstore, 'DEFAULT').get_sections],
3946
self.branch = branch
3948
def lock_write(self, token=None):
3949
return self.branch.lock_write(token)
3952
return self.branch.unlock()
3955
def set(self, name, value):
3956
super(BranchStack, self).set(name, value)
3957
# Unlocking the branch will trigger a store.save_changes() so the last
3958
# unlock saves all the changes.
3961
def remove(self, name):
3962
super(BranchStack, self).remove(name)
3963
# Unlocking the branch will trigger a store.save_changes() so the last
3964
# unlock saves all the changes.
3967
class RemoteControlStack(Stack):
3968
"""Remote control-only options stack."""
3970
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3971
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3972
# control.conf and is used only for stack options.
3974
def __init__(self, bzrdir):
3975
cstore = bzrdir._get_config_store()
3976
super(RemoteControlStack, self).__init__(
3977
[NameMatcher(cstore, None).get_sections],
3979
self.controldir = bzrdir
3982
class BranchOnlyStack(Stack):
3983
"""Branch-only options stack."""
3985
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3986
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3987
# -- vila 2011-12-16
3989
def __init__(self, branch):
3990
bstore = branch._get_config_store()
3991
super(BranchOnlyStack, self).__init__(
3992
[NameMatcher(bstore, None).get_sections],
3994
self.branch = branch
3996
def lock_write(self, token=None):
3997
return self.branch.lock_write(token)
4000
return self.branch.unlock()
4003
def set(self, name, value):
4004
super(BranchOnlyStack, self).set(name, value)
4005
# Force a write to persistent storage
4006
self.store.save_changes()
4009
def remove(self, name):
4010
super(BranchOnlyStack, self).remove(name)
4011
# Force a write to persistent storage
4012
self.store.save_changes()
4015
class cmd_config(commands.Command):
4016
__doc__ = """Display, set or remove a configuration option.
4018
Display the active value for option NAME.
4020
If --all is specified, NAME is interpreted as a regular expression and all
4021
matching options are displayed mentioning their scope and without resolving
4022
option references in the value). The active value that bzr will take into
4023
account is the first one displayed for each option.
4025
If NAME is not given, --all .* is implied (all options are displayed for the
4028
Setting a value is achieved by using NAME=value without spaces. The value
4029
is set in the most relevant scope and can be checked by displaying the
4032
Removing a value is achieved by using --remove NAME.
4035
takes_args = ['name?']
4039
# FIXME: This should be a registry option so that plugins can register
4040
# their own config files (or not) and will also address
4041
# http://pad.lv/788991 -- vila 20101115
4042
commands.Option('scope', help='Reduce the scope to the specified'
4043
' configuration file.',
4045
commands.Option('all',
4046
help='Display all the defined values for the matching options.',
4048
commands.Option('remove', help='Remove the option from'
4049
' the configuration file.'),
4052
_see_also = ['configuration']
4054
@commands.display_command
4055
def run(self, name=None, all=False, directory=None, scope=None,
4057
if directory is None:
4059
directory = directory_service.directories.dereference(directory)
4060
directory = urlutils.normalize_url(directory)
4062
raise errors.BzrError(
4063
'--all and --remove are mutually exclusive.')
4065
# Delete the option in the given scope
4066
self._remove_config_option(name, directory, scope)
4068
# Defaults to all options
4069
self._show_matching_options('.*', directory, scope)
4072
name, value = name.split('=', 1)
4074
# Display the option(s) value(s)
4076
self._show_matching_options(name, directory, scope)
4078
self._show_value(name, directory, scope)
4081
raise errors.BzrError(
4082
'Only one option can be set.')
4083
# Set the option value
4084
self._set_config_option(name, value, directory, scope)
4086
def _get_stack(self, directory, scope=None, write_access=False):
4087
"""Get the configuration stack specified by ``directory`` and ``scope``.
4089
:param directory: Where the configurations are derived from.
4091
:param scope: A specific config to start from.
4093
:param write_access: Whether a write access to the stack will be
4096
# FIXME: scope should allow access to plugin-specific stacks (even
4097
# reduced to the plugin-specific store), related to
4098
# http://pad.lv/788991 -- vila 2011-11-15
4099
if scope is not None:
4100
if scope == 'bazaar':
4101
return GlobalStack()
4102
elif scope == 'locations':
4103
return LocationStack(directory)
4104
elif scope == 'branch':
4106
controldir.ControlDir.open_containing_tree_or_branch(
4109
self.add_cleanup(br.lock_write().unlock)
4110
return br.get_config_stack()
4111
raise errors.NoSuchConfig(scope)
4115
controldir.ControlDir.open_containing_tree_or_branch(
4118
self.add_cleanup(br.lock_write().unlock)
4119
return br.get_config_stack()
4120
except errors.NotBranchError:
4121
return LocationStack(directory)
4123
def _quote_multiline(self, value):
4125
value = '"""' + value + '"""'
4128
def _show_value(self, name, directory, scope):
4129
conf = self._get_stack(directory, scope)
4130
value = conf.get(name, expand=True, convert=False)
4131
if value is not None:
4132
# Quote the value appropriately
4133
value = self._quote_multiline(value)
4134
self.outf.write('%s\n' % (value,))
4136
raise errors.NoSuchConfigOption(name)
4138
def _show_matching_options(self, name, directory, scope):
4139
name = lazy_regex.lazy_compile(name)
4140
# We want any error in the regexp to be raised *now* so we need to
4141
# avoid the delay introduced by the lazy regexp. But, we still do
4142
# want the nicer errors raised by lazy_regex.
4143
name._compile_and_collapse()
4146
conf = self._get_stack(directory, scope)
4147
for store, section in conf.iter_sections():
4148
for oname in section.iter_option_names():
4149
if name.search(oname):
4150
if cur_store_id != store.id:
4151
# Explain where the options are defined
4152
self.outf.write('%s:\n' % (store.id,))
4153
cur_store_id = store.id
4155
if (section.id is not None and cur_section != section.id):
4156
# Display the section id as it appears in the store
4157
# (None doesn't appear by definition)
4158
self.outf.write(' [%s]\n' % (section.id,))
4159
cur_section = section.id
4160
value = section.get(oname, expand=False)
4161
# Quote the value appropriately
4162
value = self._quote_multiline(value)
4163
self.outf.write(' %s = %s\n' % (oname, value))
4165
def _set_config_option(self, name, value, directory, scope):
4166
conf = self._get_stack(directory, scope, write_access=True)
4167
conf.set(name, value)
4168
# Explicitly save the changes
4169
conf.store.save_changes()
4171
def _remove_config_option(self, name, directory, scope):
4173
raise errors.BzrCommandError(
4174
'--remove expects an option to remove.')
4175
conf = self._get_stack(directory, scope, write_access=True)
4178
# Explicitly save the changes
4179
conf.store.save_changes()
4181
raise errors.NoSuchConfigOption(name)
4186
# We need adapters that can build a Store or a Stack in a test context. Test
4187
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4188
# themselves. The builder will receive a test instance and should return a
4189
# ready-to-use store or stack. Plugins that define new store/stacks can also
4190
# register themselves here to be tested against the tests defined in
4191
# breezy.tests.test_config. Note that the builder can be called multiple times
4192
# for the same test.
4194
# The registered object should be a callable receiving a test instance
4195
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4197
test_store_builder_registry = registry.Registry()
4199
# The registered object should be a callable receiving a test instance
4200
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4202
test_stack_builder_registry = registry.Registry()