1508
2229
configobj[name] = value
1510
2231
configobj.setdefault(section, {})[name] = value
2232
for hook in OldConfigHooks['set']:
2233
hook(self, name, value)
2234
self._set_configobj(configobj)
2236
def remove_option(self, option_name, section_name=None):
2237
configobj = self._get_configobj()
2238
if section_name is None:
2239
del configobj[option_name]
2241
del configobj[section_name][option_name]
2242
for hook in OldConfigHooks['remove']:
2243
hook(self, option_name)
1511
2244
self._set_configobj(configobj)
1513
2246
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2248
f = StringIO(self._transport.get_bytes(self._filename))
2249
for hook in OldConfigHooks['load']:
1516
2252
except errors.NoSuchFile:
1517
2253
return StringIO()
2254
except errors.PermissionDenied, e:
2255
trace.warning("Permission denied while trying to open "
2256
"configuration file %s.", urlutils.unescape_for_display(
2257
urlutils.join(self._transport.base, self._filename), "utf-8"))
2260
def _external_url(self):
2261
return urlutils.join(self._transport.external_url(), self._filename)
1519
2263
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2264
f = self._get_config_file()
2267
conf = ConfigObj(f, encoding='utf-8')
2268
except configobj.ConfigObjError, e:
2269
raise errors.ParseConfigError(e.errors, self._external_url())
2270
except UnicodeDecodeError:
2271
raise errors.ConfigContentError(self._external_url())
1522
2276
def _set_configobj(self, configobj):
1523
2277
out_file = StringIO()
1524
2278
configobj.write(out_file)
1525
2279
out_file.seek(0)
1526
2280
self._transport.put_file(self._filename, out_file)
2281
for hook in OldConfigHooks['save']:
2285
class Option(object):
2286
"""An option definition.
2288
The option *values* are stored in config files and found in sections.
2290
Here we define various properties about the option itself, its default
2291
value, how to convert it from stores, what to do when invalid values are
2292
encoutered, in which config files it can be stored.
2295
def __init__(self, name, override_from_env=None,
2296
default=None, default_from_env=None,
2297
help=None, from_unicode=None, invalid=None, unquote=True):
2298
"""Build an option definition.
2300
:param name: the name used to refer to the option.
2302
:param override_from_env: A list of environment variables which can
2303
provide override any configuration setting.
2305
:param default: the default value to use when none exist in the config
2306
stores. This is either a string that ``from_unicode`` will convert
2307
into the proper type, a callable returning a unicode string so that
2308
``from_unicode`` can be used on the return value, or a python
2309
object that can be stringified (so only the empty list is supported
2312
:param default_from_env: A list of environment variables which can
2313
provide a default value. 'default' will be used only if none of the
2314
variables specified here are set in the environment.
2316
:param help: a doc string to explain the option to the user.
2318
:param from_unicode: a callable to convert the unicode string
2319
representing the option value in a store or its default value.
2321
:param invalid: the action to be taken when an invalid value is
2322
encountered in a store. This is called only when from_unicode is
2323
invoked to convert a string and returns None or raise ValueError or
2324
TypeError. Accepted values are: None (ignore invalid values),
2325
'warning' (emit a warning), 'error' (emit an error message and
2328
:param unquote: should the unicode value be unquoted before conversion.
2329
This should be used only when the store providing the values cannot
2330
safely unquote them (see http://pad.lv/906897). It is provided so
2331
daughter classes can handle the quoting themselves.
2333
if override_from_env is None:
2334
override_from_env = []
2335
if default_from_env is None:
2336
default_from_env = []
2338
self.override_from_env = override_from_env
2339
# Convert the default value to a unicode string so all values are
2340
# strings internally before conversion (via from_unicode) is attempted.
2343
elif isinstance(default, list):
2344
# Only the empty list is supported
2346
raise AssertionError(
2347
'Only empty lists are supported as default values')
2349
elif isinstance(default, (str, unicode, bool, int, float)):
2350
# Rely on python to convert strings, booleans and integers
2351
self.default = u'%s' % (default,)
2352
elif callable(default):
2353
self.default = default
2355
# other python objects are not expected
2356
raise AssertionError('%r is not supported as a default value'
2358
self.default_from_env = default_from_env
2360
self.from_unicode = from_unicode
2361
self.unquote = unquote
2362
if invalid and invalid not in ('warning', 'error'):
2363
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2364
self.invalid = invalid
2370
def convert_from_unicode(self, store, unicode_value):
2371
if self.unquote and store is not None and unicode_value is not None:
2372
unicode_value = store.unquote(unicode_value)
2373
if self.from_unicode is None or unicode_value is None:
2374
# Don't convert or nothing to convert
2375
return unicode_value
2377
converted = self.from_unicode(unicode_value)
2378
except (ValueError, TypeError):
2379
# Invalid values are ignored
2381
if converted is None and self.invalid is not None:
2382
# The conversion failed
2383
if self.invalid == 'warning':
2384
trace.warning('Value "%s" is not valid for "%s"',
2385
unicode_value, self.name)
2386
elif self.invalid == 'error':
2387
raise errors.ConfigOptionValueError(self.name, unicode_value)
2390
def get_override(self):
2392
for var in self.override_from_env:
2394
# If the env variable is defined, its value takes precedence
2395
value = os.environ[var].decode(osutils.get_user_encoding())
2401
def get_default(self):
2403
for var in self.default_from_env:
2405
# If the env variable is defined, its value is the default one
2406
value = os.environ[var].decode(osutils.get_user_encoding())
2411
# Otherwise, fallback to the value defined at registration
2412
if callable(self.default):
2413
value = self.default()
2414
if not isinstance(value, unicode):
2415
raise AssertionError(
2416
"Callable default value for '%s' should be unicode"
2419
value = self.default
2422
def get_help_topic(self):
2425
def get_help_text(self, additional_see_also=None, plain=True):
2427
from bzrlib import help_topics
2428
result += help_topics._format_see_also(additional_see_also)
2430
result = help_topics.help_as_plain_text(result)
2434
# Predefined converters to get proper values from store
2436
def bool_from_store(unicode_str):
2437
return ui.bool_from_string(unicode_str)
2440
def int_from_store(unicode_str):
2441
return int(unicode_str)
2444
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2446
def int_SI_from_store(unicode_str):
2447
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2449
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2450
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2453
:return Integer, expanded to its base-10 value if a proper SI unit is
2454
found, None otherwise.
2456
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2457
p = re.compile(regexp, re.IGNORECASE)
2458
m = p.match(unicode_str)
2461
val, _, unit = m.groups()
2465
coeff = _unit_suffixes[unit.upper()]
2467
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2472
def float_from_store(unicode_str):
2473
return float(unicode_str)
2476
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2478
_list_converter_config = configobj.ConfigObj(
2479
{}, encoding='utf-8', list_values=True, interpolation=False)
2482
class ListOption(Option):
2484
def __init__(self, name, default=None, default_from_env=None,
2485
help=None, invalid=None):
2486
"""A list Option definition.
2488
This overrides the base class so the conversion from a unicode string
2489
can take quoting into account.
2491
super(ListOption, self).__init__(
2492
name, default=default, default_from_env=default_from_env,
2493
from_unicode=self.from_unicode, help=help,
2494
invalid=invalid, unquote=False)
2496
def from_unicode(self, unicode_str):
2497
if not isinstance(unicode_str, basestring):
2499
# Now inject our string directly as unicode. All callers got their
2500
# value from configobj, so values that need to be quoted are already
2502
_list_converter_config.reset()
2503
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2504
maybe_list = _list_converter_config['list']
2505
if isinstance(maybe_list, basestring):
2507
# A single value, most probably the user forgot (or didn't care
2508
# to add) the final ','
2511
# The empty string, convert to empty list
2514
# We rely on ConfigObj providing us with a list already
2519
class RegistryOption(Option):
2520
"""Option for a choice from a registry."""
2522
def __init__(self, name, registry, default_from_env=None,
2523
help=None, invalid=None):
2524
"""A registry based Option definition.
2526
This overrides the base class so the conversion from a unicode string
2527
can take quoting into account.
2529
super(RegistryOption, self).__init__(
2530
name, default=lambda: unicode(registry.default_key),
2531
default_from_env=default_from_env,
2532
from_unicode=self.from_unicode, help=help,
2533
invalid=invalid, unquote=False)
2534
self.registry = registry
2536
def from_unicode(self, unicode_str):
2537
if not isinstance(unicode_str, basestring):
2540
return self.registry.get(unicode_str)
2543
"Invalid value %s for %s."
2544
"See help for a list of possible values." % (unicode_str,
2549
ret = [self._help, "\n\nThe following values are supported:\n"]
2550
for key in self.registry.keys():
2551
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2555
_option_ref_re = lazy_regex.lazy_compile('({[^\d\W](?:\.\w|\w)*})')
2556
"""Describes an expandable option reference.
2558
We want to match the most embedded reference first.
2560
I.e. for '{{foo}}' we will get '{foo}',
2561
for '{bar{baz}}' we will get '{baz}'
2564
def iter_option_refs(string):
2565
# Split isolate refs so every other chunk is a ref
2567
for chunk in _option_ref_re.split(string):
2572
class OptionRegistry(registry.Registry):
2573
"""Register config options by their name.
2575
This overrides ``registry.Registry`` to simplify registration by acquiring
2576
some information from the option object itself.
2579
def _check_option_name(self, option_name):
2580
"""Ensures an option name is valid.
2582
:param option_name: The name to validate.
2584
if _option_ref_re.match('{%s}' % option_name) is None:
2585
raise errors.IllegalOptionName(option_name)
2587
def register(self, option):
2588
"""Register a new option to its name.
2590
:param option: The option to register. Its name is used as the key.
2592
self._check_option_name(option.name)
2593
super(OptionRegistry, self).register(option.name, option,
2596
def register_lazy(self, key, module_name, member_name):
2597
"""Register a new option to be loaded on request.
2599
:param key: the key to request the option later. Since the registration
2600
is lazy, it should be provided and match the option name.
2602
:param module_name: the python path to the module. Such as 'os.path'.
2604
:param member_name: the member of the module to return. If empty or
2605
None, get() will return the module itself.
2607
self._check_option_name(key)
2608
super(OptionRegistry, self).register_lazy(key,
2609
module_name, member_name)
2611
def get_help(self, key=None):
2612
"""Get the help text associated with the given key"""
2613
option = self.get(key)
2614
the_help = option.help
2615
if callable(the_help):
2616
return the_help(self, key)
2620
option_registry = OptionRegistry()
2623
# Registered options in lexicographical order
2625
option_registry.register(
2626
Option('append_revisions_only',
2627
default=None, from_unicode=bool_from_store, invalid='warning',
2629
Whether to only append revisions to the mainline.
2631
If this is set to true, then it is not possible to change the
2632
existing mainline of the branch.
2634
option_registry.register(
2635
ListOption('acceptable_keys',
2638
List of GPG key patterns which are acceptable for verification.
2640
option_registry.register(
2641
Option('add.maximum_file_size',
2642
default=u'20MB', from_unicode=int_SI_from_store,
2644
Size above which files should be added manually.
2646
Files below this size are added automatically when using ``bzr add`` without
2649
A negative value means disable the size check.
2651
option_registry.register(
2653
default=None, from_unicode=bool_from_store,
2655
Is the branch bound to ``bound_location``.
2657
If set to "True", the branch should act as a checkout, and push each commit to
2658
the bound_location. This option is normally set by ``bind``/``unbind``.
2660
See also: bound_location.
2662
option_registry.register(
2663
Option('bound_location',
2666
The location that commits should go to when acting as a checkout.
2668
This option is normally set by ``bind``.
2672
option_registry.register(
2673
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2675
Whether revisions associated with tags should be fetched.
2677
option_registry.register_lazy(
2678
'bzr.transform.orphan_policy', 'bzrlib.transform', 'opt_transform_orphan')
2679
option_registry.register(
2680
Option('bzr.workingtree.worth_saving_limit', default=10,
2681
from_unicode=int_from_store, invalid='warning',
2683
How many changes before saving the dirstate.
2685
-1 means that we will never rewrite the dirstate file for only
2686
stat-cache changes. Regardless of this setting, we will always rewrite
2687
the dirstate file if a file is added/removed/renamed/etc. This flag only
2688
affects the behavior of updating the dirstate file after we notice that
2689
a file has been touched.
2691
option_registry.register(
2692
Option('bugtracker', default=None,
2694
Default bug tracker to use.
2696
This bug tracker will be used for example when marking bugs
2697
as fixed using ``bzr commit --fixes``, if no explicit
2698
bug tracker was specified.
2700
option_registry.register(
2701
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2702
from_unicode=signature_policy_from_unicode,
2704
GPG checking policy.
2706
Possible values: require, ignore, check-available (default)
2708
this option will control whether bzr will require good gpg
2709
signatures, ignore them, or check them if they are
2712
option_registry.register(
2713
Option('child_submit_format',
2714
help='''The preferred format of submissions to this branch.'''))
2715
option_registry.register(
2716
Option('child_submit_to',
2717
help='''Where submissions to this branch are mailed to.'''))
2718
option_registry.register(
2719
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2720
from_unicode=signing_policy_from_unicode,
2724
Possible values: always, never, when-required (default)
2726
This option controls whether bzr will always create
2727
gpg signatures or not on commits.
2729
option_registry.register(
2730
Option('dirstate.fdatasync', default=True,
2731
from_unicode=bool_from_store,
2733
Flush dirstate changes onto physical disk?
2735
If true (default), working tree metadata changes are flushed through the
2736
OS buffers to physical disk. This is somewhat slower, but means data
2737
should not be lost if the machine crashes. See also repository.fdatasync.
2739
option_registry.register(
2740
ListOption('debug_flags', default=[],
2741
help='Debug flags to activate.'))
2742
option_registry.register(
2743
Option('default_format', default='2a',
2744
help='Format used when creating branches.'))
2745
option_registry.register(
2746
Option('dpush_strict', default=None,
2747
from_unicode=bool_from_store,
2749
The default value for ``dpush --strict``.
2751
If present, defines the ``--strict`` option default value for checking
2752
uncommitted changes before pushing into a different VCS without any
2753
custom bzr metadata.
2755
option_registry.register(
2757
help='The command called to launch an editor to enter a message.'))
2758
option_registry.register(
2759
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2760
help='The users identity'))
2761
option_registry.register(
2762
Option('gpg_signing_command',
2765
Program to use use for creating signatures.
2767
This should support at least the -u and --clearsign options.
2769
option_registry.register(
2770
Option('gpg_signing_key',
2773
GPG key to use for signing.
2775
This defaults to the first key associated with the users email.
2777
option_registry.register(
2778
Option('ignore_missing_extensions', default=False,
2779
from_unicode=bool_from_store,
2781
Control the missing extensions warning display.
2783
The warning will not be emitted if set to True.
2785
option_registry.register(
2787
help='Language to translate messages into.'))
2788
option_registry.register(
2789
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2791
Steal locks that appears to be dead.
2793
If set to True, bzr will check if a lock is supposed to be held by an
2794
active process from the same user on the same machine. If the user and
2795
machine match, but no process with the given PID is active, then bzr
2796
will automatically break the stale lock, and create a new lock for
2798
Otherwise, bzr will prompt as normal to break the lock.
2800
option_registry.register(
2801
Option('log_format', default='long',
2803
Log format to use when displaying revisions.
2805
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2806
may be provided by plugins.
2808
option_registry.register_lazy('mail_client', 'bzrlib.mail_client',
2810
option_registry.register(
2811
Option('output_encoding',
2812
help= 'Unicode encoding for output'
2813
' (terminal encoding if not specified).'))
2814
option_registry.register(
2815
Option('parent_location',
2818
The location of the default branch for pull or merge.
2820
This option is normally set when creating a branch, the first ``pull`` or by
2821
``pull --remember``.
2823
option_registry.register(
2824
Option('post_commit', default=None,
2826
Post commit functions.
2828
An ordered list of python functions to call, separated by spaces.
2830
Each function takes branch, rev_id as parameters.
2832
option_registry.register_lazy('progress_bar', 'bzrlib.ui.text',
2834
option_registry.register(
2835
Option('public_branch',
2838
A publically-accessible version of this branch.
2840
This implies that the branch setting this option is not publically-accessible.
2841
Used and set by ``bzr send``.
2843
option_registry.register(
2844
Option('push_location',
2847
The location of the default branch for push.
2849
This option is normally set by the first ``push`` or ``push --remember``.
2851
option_registry.register(
2852
Option('push_strict', default=None,
2853
from_unicode=bool_from_store,
2855
The default value for ``push --strict``.
2857
If present, defines the ``--strict`` option default value for checking
2858
uncommitted changes before sending a merge directive.
2860
option_registry.register(
2861
Option('repository.fdatasync', default=True,
2862
from_unicode=bool_from_store,
2864
Flush repository changes onto physical disk?
2866
If true (default), repository changes are flushed through the OS buffers
2867
to physical disk. This is somewhat slower, but means data should not be
2868
lost if the machine crashes. See also dirstate.fdatasync.
2870
option_registry.register_lazy('smtp_server',
2871
'bzrlib.smtp_connection', 'smtp_server')
2872
option_registry.register_lazy('smtp_password',
2873
'bzrlib.smtp_connection', 'smtp_password')
2874
option_registry.register_lazy('smtp_username',
2875
'bzrlib.smtp_connection', 'smtp_username')
2876
option_registry.register(
2877
Option('selftest.timeout',
2879
from_unicode=int_from_store,
2880
help='Abort selftest if one test takes longer than this many seconds',
2883
option_registry.register(
2884
Option('send_strict', default=None,
2885
from_unicode=bool_from_store,
2887
The default value for ``send --strict``.
2889
If present, defines the ``--strict`` option default value for checking
2890
uncommitted changes before sending a bundle.
2893
option_registry.register(
2894
Option('serve.client_timeout',
2895
default=300.0, from_unicode=float_from_store,
2896
help="If we wait for a new request from a client for more than"
2897
" X seconds, consider the client idle, and hangup."))
2898
option_registry.register(
2899
Option('stacked_on_location',
2901
help="""The location where this branch is stacked on."""))
2902
option_registry.register(
2903
Option('submit_branch',
2906
The branch you intend to submit your current work to.
2908
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2909
by the ``submit:`` revision spec.
2911
option_registry.register(
2913
help='''Where submissions from this branch are mailed to.'''))
2914
option_registry.register(
2915
ListOption('suppress_warnings',
2917
help="List of warning classes to suppress."))
2918
option_registry.register(
2919
Option('validate_signatures_in_log', default=False,
2920
from_unicode=bool_from_store, invalid='warning',
2921
help='''Whether to validate signatures in bzr log.'''))
2922
option_registry.register_lazy('ssl.ca_certs',
2923
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2925
option_registry.register_lazy('ssl.cert_reqs',
2926
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2929
class Section(object):
2930
"""A section defines a dict of option name => value.
2932
This is merely a read-only dict which can add some knowledge about the
2933
options. It is *not* a python dict object though and doesn't try to mimic
2937
def __init__(self, section_id, options):
2938
self.id = section_id
2939
# We re-use the dict-like object received
2940
self.options = options
2942
def get(self, name, default=None, expand=True):
2943
return self.options.get(name, default)
2945
def iter_option_names(self):
2946
for k in self.options.iterkeys():
2950
# Mostly for debugging use
2951
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2954
_NewlyCreatedOption = object()
2955
"""Was the option created during the MutableSection lifetime"""
2956
_DeletedOption = object()
2957
"""Was the option deleted during the MutableSection lifetime"""
2960
class MutableSection(Section):
2961
"""A section allowing changes and keeping track of the original values."""
2963
def __init__(self, section_id, options):
2964
super(MutableSection, self).__init__(section_id, options)
2965
self.reset_changes()
2967
def set(self, name, value):
2968
if name not in self.options:
2969
# This is a new option
2970
self.orig[name] = _NewlyCreatedOption
2971
elif name not in self.orig:
2972
self.orig[name] = self.get(name, None)
2973
self.options[name] = value
2975
def remove(self, name):
2976
if name not in self.orig and name in self.options:
2977
self.orig[name] = self.get(name, None)
2978
del self.options[name]
2980
def reset_changes(self):
2983
def apply_changes(self, dirty, store):
2984
"""Apply option value changes.
2986
``self`` has been reloaded from the persistent storage. ``dirty``
2987
contains the changes made since the previous loading.
2989
:param dirty: the mutable section containing the changes.
2991
:param store: the store containing the section
2993
for k, expected in dirty.orig.iteritems():
2994
actual = dirty.get(k, _DeletedOption)
2995
reloaded = self.get(k, _NewlyCreatedOption)
2996
if actual is _DeletedOption:
2997
if k in self.options:
3001
# Report concurrent updates in an ad-hoc way. This should only
3002
# occurs when different processes try to update the same option
3003
# which is not supported (as in: the config framework is not meant
3004
# to be used as a sharing mechanism).
3005
if expected != reloaded:
3006
if actual is _DeletedOption:
3007
actual = '<DELETED>'
3008
if reloaded is _NewlyCreatedOption:
3009
reloaded = '<CREATED>'
3010
if expected is _NewlyCreatedOption:
3011
expected = '<CREATED>'
3012
# Someone changed the value since we get it from the persistent
3014
trace.warning(gettext(
3015
"Option {0} in section {1} of {2} was changed"
3016
" from {3} to {4}. The {5} value will be saved.".format(
3017
k, self.id, store.external_url(), expected,
3019
# No need to keep track of these changes
3020
self.reset_changes()
3023
class Store(object):
3024
"""Abstract interface to persistent storage for configuration options."""
3026
readonly_section_class = Section
3027
mutable_section_class = MutableSection
3030
# Which sections need to be saved (by section id). We use a dict here
3031
# so the dirty sections can be shared by multiple callers.
3032
self.dirty_sections = {}
3034
def is_loaded(self):
3035
"""Returns True if the Store has been loaded.
3037
This is used to implement lazy loading and ensure the persistent
3038
storage is queried only when needed.
3040
raise NotImplementedError(self.is_loaded)
3043
"""Loads the Store from persistent storage."""
3044
raise NotImplementedError(self.load)
3046
def _load_from_string(self, bytes):
3047
"""Create a store from a string in configobj syntax.
3049
:param bytes: A string representing the file content.
3051
raise NotImplementedError(self._load_from_string)
3054
"""Unloads the Store.
3056
This should make is_loaded() return False. This is used when the caller
3057
knows that the persistent storage has changed or may have change since
3060
raise NotImplementedError(self.unload)
3062
def quote(self, value):
3063
"""Quote a configuration option value for storing purposes.
3065
This allows Stacks to present values as they will be stored.
3069
def unquote(self, value):
3070
"""Unquote a configuration option value into unicode.
3072
The received value is quoted as stored.
3077
"""Saves the Store to persistent storage."""
3078
raise NotImplementedError(self.save)
3080
def _need_saving(self):
3081
for s in self.dirty_sections.values():
3083
# At least one dirty section contains a modification
3087
def apply_changes(self, dirty_sections):
3088
"""Apply changes from dirty sections while checking for coherency.
3090
The Store content is discarded and reloaded from persistent storage to
3091
acquire up-to-date values.
3093
Dirty sections are MutableSection which kept track of the value they
3094
are expected to update.
3096
# We need an up-to-date version from the persistent storage, unload the
3097
# store. The reload will occur when needed (triggered by the first
3098
# get_mutable_section() call below.
3100
# Apply the changes from the preserved dirty sections
3101
for section_id, dirty in dirty_sections.iteritems():
3102
clean = self.get_mutable_section(section_id)
3103
clean.apply_changes(dirty, self)
3104
# Everything is clean now
3105
self.dirty_sections = {}
3107
def save_changes(self):
3108
"""Saves the Store to persistent storage if changes occurred.
3110
Apply the changes recorded in the mutable sections to a store content
3111
refreshed from persistent storage.
3113
raise NotImplementedError(self.save_changes)
3115
def external_url(self):
3116
raise NotImplementedError(self.external_url)
3118
def get_sections(self):
3119
"""Returns an ordered iterable of existing sections.
3121
:returns: An iterable of (store, section).
3123
raise NotImplementedError(self.get_sections)
3125
def get_mutable_section(self, section_id=None):
3126
"""Returns the specified mutable section.
3128
:param section_id: The section identifier
3130
raise NotImplementedError(self.get_mutable_section)
3133
# Mostly for debugging use
3134
return "<config.%s(%s)>" % (self.__class__.__name__,
3135
self.external_url())
3138
class CommandLineStore(Store):
3139
"A store to carry command line overrides for the config options."""
3141
def __init__(self, opts=None):
3142
super(CommandLineStore, self).__init__()
3149
# The dict should be cleared but not replaced so it can be shared.
3150
self.options.clear()
3152
def _from_cmdline(self, overrides):
3153
# Reset before accepting new definitions
3155
for over in overrides:
3157
name, value = over.split('=', 1)
3159
raise errors.BzrCommandError(
3160
gettext("Invalid '%s', should be of the form 'name=value'")
3162
self.options[name] = value
3164
def external_url(self):
3165
# Not an url but it makes debugging easier and is never needed
3169
def get_sections(self):
3170
yield self, self.readonly_section_class(None, self.options)
3173
class IniFileStore(Store):
3174
"""A config Store using ConfigObj for storage.
3176
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3177
serialize/deserialize the config file.
3181
"""A config Store using ConfigObj for storage.
3183
super(IniFileStore, self).__init__()
3184
self._config_obj = None
3186
def is_loaded(self):
3187
return self._config_obj != None
3190
self._config_obj = None
3191
self.dirty_sections = {}
3193
def _load_content(self):
3194
"""Load the config file bytes.
3196
This should be provided by subclasses
3198
:return: Byte string
3200
raise NotImplementedError(self._load_content)
3202
def _save_content(self, content):
3203
"""Save the config file bytes.
3205
This should be provided by subclasses
3207
:param content: Config file bytes to write
3209
raise NotImplementedError(self._save_content)
3212
"""Load the store from the associated file."""
3213
if self.is_loaded():
3215
content = self._load_content()
3216
self._load_from_string(content)
3217
for hook in ConfigHooks['load']:
3220
def _load_from_string(self, bytes):
3221
"""Create a config store from a string.
3223
:param bytes: A string representing the file content.
3225
if self.is_loaded():
3226
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3227
co_input = StringIO(bytes)
3229
# The config files are always stored utf8-encoded
3230
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3232
except configobj.ConfigObjError, e:
3233
self._config_obj = None
3234
raise errors.ParseConfigError(e.errors, self.external_url())
3235
except UnicodeDecodeError:
3236
raise errors.ConfigContentError(self.external_url())
3238
def save_changes(self):
3239
if not self.is_loaded():
3242
if not self._need_saving():
3244
# Preserve the current version
3245
dirty_sections = dict(self.dirty_sections.items())
3246
self.apply_changes(dirty_sections)
3247
# Save to the persistent storage
3251
if not self.is_loaded():
3255
self._config_obj.write(out)
3256
self._save_content(out.getvalue())
3257
for hook in ConfigHooks['save']:
3260
def get_sections(self):
3261
"""Get the configobj section in the file order.
3263
:returns: An iterable of (store, section).
3265
# We need a loaded store
3268
except (errors.NoSuchFile, errors.PermissionDenied):
3269
# If the file can't be read, there is no sections
3271
cobj = self._config_obj
3273
yield self, self.readonly_section_class(None, cobj)
3274
for section_name in cobj.sections:
3276
self.readonly_section_class(section_name,
3277
cobj[section_name]))
3279
def get_mutable_section(self, section_id=None):
3280
# We need a loaded store
3283
except errors.NoSuchFile:
3284
# The file doesn't exist, let's pretend it was empty
3285
self._load_from_string('')
3286
if section_id in self.dirty_sections:
3287
# We already created a mutable section for this id
3288
return self.dirty_sections[section_id]
3289
if section_id is None:
3290
section = self._config_obj
3292
section = self._config_obj.setdefault(section_id, {})
3293
mutable_section = self.mutable_section_class(section_id, section)
3294
# All mutable sections can become dirty
3295
self.dirty_sections[section_id] = mutable_section
3296
return mutable_section
3298
def quote(self, value):
3300
# configobj conflates automagical list values and quoting
3301
self._config_obj.list_values = True
3302
return self._config_obj._quote(value)
3304
self._config_obj.list_values = False
3306
def unquote(self, value):
3307
if value and isinstance(value, basestring):
3308
# _unquote doesn't handle None nor empty strings nor anything that
3309
# is not a string, really.
3310
value = self._config_obj._unquote(value)
3313
def external_url(self):
3314
# Since an IniFileStore can be used without a file (at least in tests),
3315
# it's better to provide something than raising a NotImplementedError.
3316
# All daughter classes are supposed to provide an implementation
3318
return 'In-Process Store, no URL'
3321
class TransportIniFileStore(IniFileStore):
3322
"""IniFileStore that loads files from a transport.
3324
:ivar transport: The transport object where the config file is located.
3326
:ivar file_name: The config file basename in the transport directory.
3329
def __init__(self, transport, file_name):
3330
"""A Store using a ini file on a Transport
3332
:param transport: The transport object where the config file is located.
3333
:param file_name: The config file basename in the transport directory.
3335
super(TransportIniFileStore, self).__init__()
3336
self.transport = transport
3337
self.file_name = file_name
3339
def _load_content(self):
3341
return self.transport.get_bytes(self.file_name)
3342
except errors.PermissionDenied:
3343
trace.warning("Permission denied while trying to load "
3344
"configuration store %s.", self.external_url())
3347
def _save_content(self, content):
3348
self.transport.put_bytes(self.file_name, content)
3350
def external_url(self):
3351
# FIXME: external_url should really accepts an optional relpath
3352
# parameter (bug #750169) :-/ -- vila 2011-04-04
3353
# The following will do in the interim but maybe we don't want to
3354
# expose a path here but rather a config ID and its associated
3355
# object </hand wawe>.
3356
return urlutils.join(self.transport.external_url(), self.file_name)
3359
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3360
# unlockable stores for use with objects that can already ensure the locking
3361
# (think branches). If different stores (not based on ConfigObj) are created,
3362
# they may face the same issue.
3365
class LockableIniFileStore(TransportIniFileStore):
3366
"""A ConfigObjStore using locks on save to ensure store integrity."""
3368
def __init__(self, transport, file_name, lock_dir_name=None):
3369
"""A config Store using ConfigObj for storage.
3371
:param transport: The transport object where the config file is located.
3373
:param file_name: The config file basename in the transport directory.
3375
if lock_dir_name is None:
3376
lock_dir_name = 'lock'
3377
self.lock_dir_name = lock_dir_name
3378
super(LockableIniFileStore, self).__init__(transport, file_name)
3379
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3381
def lock_write(self, token=None):
3382
"""Takes a write lock in the directory containing the config file.
3384
If the directory doesn't exist it is created.
3386
# FIXME: This doesn't check the ownership of the created directories as
3387
# ensure_config_dir_exists does. It should if the transport is local
3388
# -- vila 2011-04-06
3389
self.transport.create_prefix()
3390
return self._lock.lock_write(token)
3395
def break_lock(self):
3396
self._lock.break_lock()
3400
# We need to be able to override the undecorated implementation
3401
self.save_without_locking()
3403
def save_without_locking(self):
3404
super(LockableIniFileStore, self).save()
3407
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3408
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3409
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3411
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3412
# functions or a registry will make it easier and clearer for tests, focusing
3413
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3414
# on a poolie's remark)
3415
class GlobalStore(LockableIniFileStore):
3416
"""A config store for global options.
3418
There is a single GlobalStore for a given process.
3421
def __init__(self, possible_transports=None):
3422
t = transport.get_transport_from_path(
3423
config_dir(), possible_transports=possible_transports)
3424
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3428
class LocationStore(LockableIniFileStore):
3429
"""A config store for options specific to a location.
3431
There is a single LocationStore for a given process.
3434
def __init__(self, possible_transports=None):
3435
t = transport.get_transport_from_path(
3436
config_dir(), possible_transports=possible_transports)
3437
super(LocationStore, self).__init__(t, 'locations.conf')
3438
self.id = 'locations'
3441
class BranchStore(TransportIniFileStore):
3442
"""A config store for branch options.
3444
There is a single BranchStore for a given branch.
3447
def __init__(self, branch):
3448
super(BranchStore, self).__init__(branch.control_transport,
3450
self.branch = branch
3454
class ControlStore(LockableIniFileStore):
3456
def __init__(self, bzrdir):
3457
super(ControlStore, self).__init__(bzrdir.transport,
3459
lock_dir_name='branch_lock')
3463
class SectionMatcher(object):
3464
"""Select sections into a given Store.
3466
This is intended to be used to postpone getting an iterable of sections
3470
def __init__(self, store):
3473
def get_sections(self):
3474
# This is where we require loading the store so we can see all defined
3476
sections = self.store.get_sections()
3477
# Walk the revisions in the order provided
3478
for store, s in sections:
3482
def match(self, section):
3483
"""Does the proposed section match.
3485
:param section: A Section object.
3487
:returns: True if the section matches, False otherwise.
3489
raise NotImplementedError(self.match)
3492
class NameMatcher(SectionMatcher):
3494
def __init__(self, store, section_id):
3495
super(NameMatcher, self).__init__(store)
3496
self.section_id = section_id
3498
def match(self, section):
3499
return section.id == self.section_id
3502
class LocationSection(Section):
3504
def __init__(self, section, extra_path, branch_name=None):
3505
super(LocationSection, self).__init__(section.id, section.options)
3506
self.extra_path = extra_path
3507
if branch_name is None:
3509
self.locals = {'relpath': extra_path,
3510
'basename': urlutils.basename(extra_path),
3511
'branchname': branch_name}
3513
def get(self, name, default=None, expand=True):
3514
value = super(LocationSection, self).get(name, default)
3515
if value is not None and expand:
3516
policy_name = self.get(name + ':policy', None)
3517
policy = _policy_value.get(policy_name, POLICY_NONE)
3518
if policy == POLICY_APPENDPATH:
3519
value = urlutils.join(value, self.extra_path)
3520
# expand section local options right now (since POLICY_APPENDPATH
3521
# will never add options references, it's ok to expand after it).
3523
for is_ref, chunk in iter_option_refs(value):
3525
chunks.append(chunk)
3528
if ref in self.locals:
3529
chunks.append(self.locals[ref])
3531
chunks.append(chunk)
3532
value = ''.join(chunks)
3536
class StartingPathMatcher(SectionMatcher):
3537
"""Select sections for a given location respecting the Store order."""
3539
# FIXME: Both local paths and urls can be used for section names as well as
3540
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3541
# inherited the fuzziness from the previous ``LocationConfig``
3542
# implementation. We probably need to revisit which encoding is allowed for
3543
# both ``location`` and section names and how we normalize
3544
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3545
# related too. -- vila 2012-01-04
3547
def __init__(self, store, location):
3548
super(StartingPathMatcher, self).__init__(store)
3549
if location.startswith('file://'):
3550
location = urlutils.local_path_from_url(location)
3551
self.location = location
3553
def get_sections(self):
3554
"""Get all sections matching ``location`` in the store.
3556
The most generic sections are described first in the store, then more
3557
specific ones can be provided for reduced scopes.
3559
The returned section are therefore returned in the reversed order so
3560
the most specific ones can be found first.
3562
location_parts = self.location.rstrip('/').split('/')
3565
# Later sections are more specific, they should be returned first
3566
for _, section in reversed(list(store.get_sections())):
3567
if section.id is None:
3568
# The no-name section is always included if present
3569
yield store, LocationSection(section, self.location)
3571
section_path = section.id
3572
if section_path.startswith('file://'):
3573
# the location is already a local path or URL, convert the
3574
# section id to the same format
3575
section_path = urlutils.local_path_from_url(section_path)
3576
if (self.location.startswith(section_path)
3577
or fnmatch.fnmatch(self.location, section_path)):
3578
section_parts = section_path.rstrip('/').split('/')
3579
extra_path = '/'.join(location_parts[len(section_parts):])
3580
yield store, LocationSection(section, extra_path)
3583
class LocationMatcher(SectionMatcher):
3585
def __init__(self, store, location):
3586
super(LocationMatcher, self).__init__(store)
3587
url, params = urlutils.split_segment_parameters(location)
3588
if location.startswith('file://'):
3589
location = urlutils.local_path_from_url(location)
3590
self.location = location
3591
branch_name = params.get('branch')
3592
if branch_name is None:
3593
self.branch_name = urlutils.basename(self.location)
3595
self.branch_name = urlutils.unescape(branch_name)
3597
def _get_matching_sections(self):
3598
"""Get all sections matching ``location``."""
3599
# We slightly diverge from LocalConfig here by allowing the no-name
3600
# section as the most generic one and the lower priority.
3601
no_name_section = None
3603
# Filter out the no_name_section so _iter_for_location_by_parts can be
3604
# used (it assumes all sections have a name).
3605
for _, section in self.store.get_sections():
3606
if section.id is None:
3607
no_name_section = section
3609
all_sections.append(section)
3610
# Unfortunately _iter_for_location_by_parts deals with section names so
3611
# we have to resync.
3612
filtered_sections = _iter_for_location_by_parts(
3613
[s.id for s in all_sections], self.location)
3614
iter_all_sections = iter(all_sections)
3615
matching_sections = []
3616
if no_name_section is not None:
3617
matching_sections.append(
3618
(0, LocationSection(no_name_section, self.location)))
3619
for section_id, extra_path, length in filtered_sections:
3620
# a section id is unique for a given store so it's safe to take the
3621
# first matching section while iterating. Also, all filtered
3622
# sections are part of 'all_sections' and will always be found
3625
section = iter_all_sections.next()
3626
if section_id == section.id:
3627
section = LocationSection(section, extra_path,
3629
matching_sections.append((length, section))
3631
return matching_sections
3633
def get_sections(self):
3634
# Override the default implementation as we want to change the order
3635
matching_sections = self._get_matching_sections()
3636
# We want the longest (aka more specific) locations first
3637
sections = sorted(matching_sections,
3638
key=lambda (length, section): (length, section.id),
3640
# Sections mentioning 'ignore_parents' restrict the selection
3641
for _, section in sections:
3642
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3643
ignore = section.get('ignore_parents', None)
3644
if ignore is not None:
3645
ignore = ui.bool_from_string(ignore)
3648
# Finally, we have a valid section
3649
yield self.store, section
3652
# FIXME: _shared_stores should be an attribute of a library state once a
3653
# library_state object is always available.
3655
_shared_stores_at_exit_installed = False
3657
class Stack(object):
3658
"""A stack of configurations where an option can be defined"""
3660
def __init__(self, sections_def, store=None, mutable_section_id=None):
3661
"""Creates a stack of sections with an optional store for changes.
3663
:param sections_def: A list of Section or callables that returns an
3664
iterable of Section. This defines the Sections for the Stack and
3665
can be called repeatedly if needed.
3667
:param store: The optional Store where modifications will be
3668
recorded. If none is specified, no modifications can be done.
3670
:param mutable_section_id: The id of the MutableSection where changes
3671
are recorded. This requires the ``store`` parameter to be
3674
self.sections_def = sections_def
3676
self.mutable_section_id = mutable_section_id
3678
def iter_sections(self):
3679
"""Iterate all the defined sections."""
3680
# Ensuring lazy loading is achieved by delaying section matching (which
3681
# implies querying the persistent storage) until it can't be avoided
3682
# anymore by using callables to describe (possibly empty) section
3684
for sections in self.sections_def:
3685
for store, section in sections():
3686
yield store, section
3688
def get(self, name, expand=True, convert=True):
3689
"""Return the *first* option value found in the sections.
3691
This is where we guarantee that sections coming from Store are loaded
3692
lazily: the loading is delayed until we need to either check that an
3693
option exists or get its value, which in turn may require to discover
3694
in which sections it can be defined. Both of these (section and option
3695
existence) require loading the store (even partially).
3697
:param name: The queried option.
3699
:param expand: Whether options references should be expanded.
3701
:param convert: Whether the option value should be converted from
3702
unicode (do nothing for non-registered options).
3704
:returns: The value of the option.
3706
# FIXME: No caching of options nor sections yet -- vila 20110503
3708
found_store = None # Where the option value has been found
3709
# If the option is registered, it may provide additional info about
3712
opt = option_registry.get(name)
3717
def expand_and_convert(val):
3718
# This may need to be called in different contexts if the value is
3719
# None or ends up being None during expansion or conversion.
3722
if isinstance(val, basestring):
3723
val = self._expand_options_in_string(val)
3725
trace.warning('Cannot expand "%s":'
3726
' %s does not support option expansion'
3727
% (name, type(val)))
3729
val = found_store.unquote(val)
3731
val = opt.convert_from_unicode(found_store, val)
3734
# First of all, check if the environment can override the configuration
3736
if opt is not None and opt.override_from_env:
3737
value = opt.get_override()
3738
value = expand_and_convert(value)
3740
for store, section in self.iter_sections():
3741
value = section.get(name)
3742
if value is not None:
3745
value = expand_and_convert(value)
3746
if opt is not None and value is None:
3747
# If the option is registered, it may provide a default value
3748
value = opt.get_default()
3749
value = expand_and_convert(value)
3750
for hook in ConfigHooks['get']:
3751
hook(self, name, value)
3754
def expand_options(self, string, env=None):
3755
"""Expand option references in the string in the configuration context.
3757
:param string: The string containing option(s) to expand.
3759
:param env: An option dict defining additional configuration options or
3760
overriding existing ones.
3762
:returns: The expanded string.
3764
return self._expand_options_in_string(string, env)
3766
def _expand_options_in_string(self, string, env=None, _refs=None):
3767
"""Expand options in the string in the configuration context.
3769
:param string: The string to be expanded.
3771
:param env: An option dict defining additional configuration options or
3772
overriding existing ones.
3774
:param _refs: Private list (FIFO) containing the options being expanded
3777
:returns: The expanded string.
3780
# Not much to expand there
3783
# What references are currently resolved (to detect loops)
3786
# We need to iterate until no more refs appear ({{foo}} will need two
3787
# iterations for example).
3792
for is_ref, chunk in iter_option_refs(result):
3794
chunks.append(chunk)
3799
raise errors.OptionExpansionLoop(string, _refs)
3801
value = self._expand_option(name, env, _refs)
3803
raise errors.ExpandingUnknownOption(name, string)
3804
chunks.append(value)
3806
result = ''.join(chunks)
3809
def _expand_option(self, name, env, _refs):
3810
if env is not None and name in env:
3811
# Special case, values provided in env takes precedence over
3815
value = self.get(name, expand=False, convert=False)
3816
value = self._expand_options_in_string(value, env, _refs)
3819
def _get_mutable_section(self):
3820
"""Get the MutableSection for the Stack.
3822
This is where we guarantee that the mutable section is lazily loaded:
3823
this means we won't load the corresponding store before setting a value
3824
or deleting an option. In practice the store will often be loaded but
3825
this helps catching some programming errors.
3828
section = store.get_mutable_section(self.mutable_section_id)
3829
return store, section
3831
def set(self, name, value):
3832
"""Set a new value for the option."""
3833
store, section = self._get_mutable_section()
3834
section.set(name, store.quote(value))
3835
for hook in ConfigHooks['set']:
3836
hook(self, name, value)
3838
def remove(self, name):
3839
"""Remove an existing option."""
3840
_, section = self._get_mutable_section()
3841
section.remove(name)
3842
for hook in ConfigHooks['remove']:
3846
# Mostly for debugging use
3847
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3849
def _get_overrides(self):
3850
# FIXME: Hack around library_state.initialize never called
3851
if bzrlib.global_state is not None:
3852
return bzrlib.global_state.cmdline_overrides.get_sections()
3855
def get_shared_store(self, store, state=None):
3856
"""Get a known shared store.
3858
Store urls uniquely identify them and are used to ensure a single copy
3859
is shared across all users.
3861
:param store: The store known to the caller.
3863
:param state: The library state where the known stores are kept.
3865
:returns: The store received if it's not a known one, an already known
3869
state = bzrlib.global_state
3871
global _shared_stores_at_exit_installed
3872
stores = _shared_stores
3873
def save_config_changes():
3874
for k, store in stores.iteritems():
3875
store.save_changes()
3876
if not _shared_stores_at_exit_installed:
3877
# FIXME: Ugly hack waiting for library_state to always be
3878
# available. -- vila 20120731
3880
atexit.register(save_config_changes)
3881
_shared_stores_at_exit_installed = True
3883
stores = state.config_stores
3884
url = store.external_url()
3892
class MemoryStack(Stack):
3893
"""A configuration stack defined from a string.
3895
This is mainly intended for tests and requires no disk resources.
3898
def __init__(self, content=None):
3899
"""Create an in-memory stack from a given content.
3901
It uses a single store based on configobj and support reading and
3904
:param content: The initial content of the store. If None, the store is
3905
not loaded and ``_load_from_string`` can and should be used if
3908
store = IniFileStore()
3909
if content is not None:
3910
store._load_from_string(content)
3911
super(MemoryStack, self).__init__(
3912
[store.get_sections], store)
3915
class _CompatibleStack(Stack):
3916
"""Place holder for compatibility with previous design.
3918
This is intended to ease the transition from the Config-based design to the
3919
Stack-based design and should not be used nor relied upon by plugins.
3921
One assumption made here is that the daughter classes will all use Stores
3922
derived from LockableIniFileStore).
3924
It implements set() and remove () by re-loading the store before applying
3925
the modification and saving it.
3927
The long term plan being to implement a single write by store to save
3928
all modifications, this class should not be used in the interim.
3931
def set(self, name, value):
3934
super(_CompatibleStack, self).set(name, value)
3935
# Force a write to persistent storage
3938
def remove(self, name):
3941
super(_CompatibleStack, self).remove(name)
3942
# Force a write to persistent storage
3946
class GlobalStack(Stack):
3947
"""Global options only stack.
3949
The following sections are queried:
3951
* command-line overrides,
3953
* the 'DEFAULT' section in bazaar.conf
3955
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3960
gstore = self.get_shared_store(GlobalStore())
3961
super(GlobalStack, self).__init__(
3962
[self._get_overrides,
3963
NameMatcher(gstore, 'DEFAULT').get_sections],
3964
gstore, mutable_section_id='DEFAULT')
3967
class LocationStack(Stack):
3968
"""Per-location options falling back to global options stack.
3971
The following sections are queried:
3973
* command-line overrides,
3975
* the sections matching ``location`` in ``locations.conf``, the order being
3976
defined by the number of path components in the section glob, higher
3977
numbers first (from most specific section to most generic).
3979
* the 'DEFAULT' section in bazaar.conf
3981
This stack will use the ``location`` section in locations.conf as its
3985
def __init__(self, location):
3986
"""Make a new stack for a location and global configuration.
3988
:param location: A URL prefix to """
3989
lstore = self.get_shared_store(LocationStore())
3990
if location.startswith('file://'):
3991
location = urlutils.local_path_from_url(location)
3992
gstore = self.get_shared_store(GlobalStore())
3993
super(LocationStack, self).__init__(
3994
[self._get_overrides,
3995
LocationMatcher(lstore, location).get_sections,
3996
NameMatcher(gstore, 'DEFAULT').get_sections],
3997
lstore, mutable_section_id=location)
4000
class BranchStack(Stack):
4001
"""Per-location options falling back to branch then global options stack.
4003
The following sections are queried:
4005
* command-line overrides,
4007
* the sections matching ``location`` in ``locations.conf``, the order being
4008
defined by the number of path components in the section glob, higher
4009
numbers first (from most specific section to most generic),
4011
* the no-name section in branch.conf,
4013
* the ``DEFAULT`` section in ``bazaar.conf``.
4015
This stack will use the no-name section in ``branch.conf`` as its
4019
def __init__(self, branch):
4020
lstore = self.get_shared_store(LocationStore())
4021
bstore = branch._get_config_store()
4022
gstore = self.get_shared_store(GlobalStore())
4023
super(BranchStack, self).__init__(
4024
[self._get_overrides,
4025
LocationMatcher(lstore, branch.base).get_sections,
4026
NameMatcher(bstore, None).get_sections,
4027
NameMatcher(gstore, 'DEFAULT').get_sections],
4029
self.branch = branch
4031
def lock_write(self, token=None):
4032
return self.branch.lock_write(token)
4035
return self.branch.unlock()
4038
def set(self, name, value):
4039
super(BranchStack, self).set(name, value)
4040
# Unlocking the branch will trigger a store.save_changes() so the last
4041
# unlock saves all the changes.
4044
def remove(self, name):
4045
super(BranchStack, self).remove(name)
4046
# Unlocking the branch will trigger a store.save_changes() so the last
4047
# unlock saves all the changes.
4050
class RemoteControlStack(Stack):
4051
"""Remote control-only options stack."""
4053
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
4054
# with the stack used for remote bzr dirs. RemoteControlStack only uses
4055
# control.conf and is used only for stack options.
4057
def __init__(self, bzrdir):
4058
cstore = bzrdir._get_config_store()
4059
super(RemoteControlStack, self).__init__(
4060
[NameMatcher(cstore, None).get_sections],
4062
self.bzrdir = bzrdir
4065
class BranchOnlyStack(Stack):
4066
"""Branch-only options stack."""
4068
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4069
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4070
# -- vila 2011-12-16
4072
def __init__(self, branch):
4073
bstore = branch._get_config_store()
4074
super(BranchOnlyStack, self).__init__(
4075
[NameMatcher(bstore, None).get_sections],
4077
self.branch = branch
4079
def lock_write(self, token=None):
4080
return self.branch.lock_write(token)
4083
return self.branch.unlock()
4086
def set(self, name, value):
4087
super(BranchOnlyStack, self).set(name, value)
4088
# Force a write to persistent storage
4089
self.store.save_changes()
4092
def remove(self, name):
4093
super(BranchOnlyStack, self).remove(name)
4094
# Force a write to persistent storage
4095
self.store.save_changes()
4098
class cmd_config(commands.Command):
4099
__doc__ = """Display, set or remove a configuration option.
4101
Display the active value for option NAME.
4103
If --all is specified, NAME is interpreted as a regular expression and all
4104
matching options are displayed mentioning their scope and without resolving
4105
option references in the value). The active value that bzr will take into
4106
account is the first one displayed for each option.
4108
If NAME is not given, --all .* is implied (all options are displayed for the
4111
Setting a value is achieved by using NAME=value without spaces. The value
4112
is set in the most relevant scope and can be checked by displaying the
4115
Removing a value is achieved by using --remove NAME.
4118
takes_args = ['name?']
4122
# FIXME: This should be a registry option so that plugins can register
4123
# their own config files (or not) and will also address
4124
# http://pad.lv/788991 -- vila 20101115
4125
commands.Option('scope', help='Reduce the scope to the specified'
4126
' configuration file.',
4128
commands.Option('all',
4129
help='Display all the defined values for the matching options.',
4131
commands.Option('remove', help='Remove the option from'
4132
' the configuration file.'),
4135
_see_also = ['configuration']
4137
@commands.display_command
4138
def run(self, name=None, all=False, directory=None, scope=None,
4140
if directory is None:
4142
directory = directory_service.directories.dereference(directory)
4143
directory = urlutils.normalize_url(directory)
4145
raise errors.BzrError(
4146
'--all and --remove are mutually exclusive.')
4148
# Delete the option in the given scope
4149
self._remove_config_option(name, directory, scope)
4151
# Defaults to all options
4152
self._show_matching_options('.*', directory, scope)
4155
name, value = name.split('=', 1)
4157
# Display the option(s) value(s)
4159
self._show_matching_options(name, directory, scope)
4161
self._show_value(name, directory, scope)
4164
raise errors.BzrError(
4165
'Only one option can be set.')
4166
# Set the option value
4167
self._set_config_option(name, value, directory, scope)
4169
def _get_stack(self, directory, scope=None, write_access=False):
4170
"""Get the configuration stack specified by ``directory`` and ``scope``.
4172
:param directory: Where the configurations are derived from.
4174
:param scope: A specific config to start from.
4176
:param write_access: Whether a write access to the stack will be
4179
# FIXME: scope should allow access to plugin-specific stacks (even
4180
# reduced to the plugin-specific store), related to
4181
# http://pad.lv/788991 -- vila 2011-11-15
4182
if scope is not None:
4183
if scope == 'bazaar':
4184
return GlobalStack()
4185
elif scope == 'locations':
4186
return LocationStack(directory)
4187
elif scope == 'branch':
4189
controldir.ControlDir.open_containing_tree_or_branch(
4192
self.add_cleanup(br.lock_write().unlock)
4193
return br.get_config_stack()
4194
raise errors.NoSuchConfig(scope)
4198
controldir.ControlDir.open_containing_tree_or_branch(
4201
self.add_cleanup(br.lock_write().unlock)
4202
return br.get_config_stack()
4203
except errors.NotBranchError:
4204
return LocationStack(directory)
4206
def _quote_multiline(self, value):
4208
value = '"""' + value + '"""'
4211
def _show_value(self, name, directory, scope):
4212
conf = self._get_stack(directory, scope)
4213
value = conf.get(name, expand=True, convert=False)
4214
if value is not None:
4215
# Quote the value appropriately
4216
value = self._quote_multiline(value)
4217
self.outf.write('%s\n' % (value,))
4219
raise errors.NoSuchConfigOption(name)
4221
def _show_matching_options(self, name, directory, scope):
4222
name = lazy_regex.lazy_compile(name)
4223
# We want any error in the regexp to be raised *now* so we need to
4224
# avoid the delay introduced by the lazy regexp. But, we still do
4225
# want the nicer errors raised by lazy_regex.
4226
name._compile_and_collapse()
4229
conf = self._get_stack(directory, scope)
4230
for store, section in conf.iter_sections():
4231
for oname in section.iter_option_names():
4232
if name.search(oname):
4233
if cur_store_id != store.id:
4234
# Explain where the options are defined
4235
self.outf.write('%s:\n' % (store.id,))
4236
cur_store_id = store.id
4238
if (section.id is not None and cur_section != section.id):
4239
# Display the section id as it appears in the store
4240
# (None doesn't appear by definition)
4241
self.outf.write(' [%s]\n' % (section.id,))
4242
cur_section = section.id
4243
value = section.get(oname, expand=False)
4244
# Quote the value appropriately
4245
value = self._quote_multiline(value)
4246
self.outf.write(' %s = %s\n' % (oname, value))
4248
def _set_config_option(self, name, value, directory, scope):
4249
conf = self._get_stack(directory, scope, write_access=True)
4250
conf.set(name, value)
4252
def _remove_config_option(self, name, directory, scope):
4254
raise errors.BzrCommandError(
4255
'--remove expects an option to remove.')
4256
conf = self._get_stack(directory, scope, write_access=True)
4260
raise errors.NoSuchConfigOption(name)
4265
# We need adapters that can build a Store or a Stack in a test context. Test
4266
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4267
# themselves. The builder will receive a test instance and should return a
4268
# ready-to-use store or stack. Plugins that define new store/stacks can also
4269
# register themselves here to be tested against the tests defined in
4270
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4271
# for the same test.
4273
# The registered object should be a callable receiving a test instance
4274
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4276
test_store_builder_registry = registry.Registry()
4278
# The registered object should be a callable receiving a test instance
4279
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4281
test_stack_builder_registry = registry.Registry()