1508
2213
configobj[name] = value
1510
2215
configobj.setdefault(section, {})[name] = value
2216
for hook in OldConfigHooks['set']:
2217
hook(self, name, value)
2218
self._set_configobj(configobj)
2220
def remove_option(self, option_name, section_name=None):
2221
configobj = self._get_configobj()
2222
if section_name is None:
2223
del configobj[option_name]
2225
del configobj[section_name][option_name]
2226
for hook in OldConfigHooks['remove']:
2227
hook(self, option_name)
1511
2228
self._set_configobj(configobj)
1513
2230
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2232
f = StringIO(self._transport.get_bytes(self._filename))
2233
for hook in OldConfigHooks['load']:
1516
2236
except errors.NoSuchFile:
1517
2237
return StringIO()
2238
except errors.PermissionDenied, e:
2239
trace.warning("Permission denied while trying to open "
2240
"configuration file %s.", urlutils.unescape_for_display(
2241
urlutils.join(self._transport.base, self._filename), "utf-8"))
2244
def _external_url(self):
2245
return urlutils.join(self._transport.external_url(), self._filename)
1519
2247
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2248
f = self._get_config_file()
2251
conf = ConfigObj(f, encoding='utf-8')
2252
except configobj.ConfigObjError, e:
2253
raise errors.ParseConfigError(e.errors, self._external_url())
2254
except UnicodeDecodeError:
2255
raise errors.ConfigContentError(self._external_url())
1522
2260
def _set_configobj(self, configobj):
1523
2261
out_file = StringIO()
1524
2262
configobj.write(out_file)
1525
2263
out_file.seek(0)
1526
2264
self._transport.put_file(self._filename, out_file)
2265
for hook in OldConfigHooks['save']:
2269
class Option(object):
2270
"""An option definition.
2272
The option *values* are stored in config files and found in sections.
2274
Here we define various properties about the option itself, its default
2275
value, how to convert it from stores, what to do when invalid values are
2276
encoutered, in which config files it can be stored.
2279
def __init__(self, name, override_from_env=None,
2280
default=None, default_from_env=None,
2281
help=None, from_unicode=None, invalid=None, unquote=True):
2282
"""Build an option definition.
2284
:param name: the name used to refer to the option.
2286
:param override_from_env: A list of environment variables which can
2287
provide override any configuration setting.
2289
:param default: the default value to use when none exist in the config
2290
stores. This is either a string that ``from_unicode`` will convert
2291
into the proper type, a callable returning a unicode string so that
2292
``from_unicode`` can be used on the return value, or a python
2293
object that can be stringified (so only the empty list is supported
2296
:param default_from_env: A list of environment variables which can
2297
provide a default value. 'default' will be used only if none of the
2298
variables specified here are set in the environment.
2300
:param help: a doc string to explain the option to the user.
2302
:param from_unicode: a callable to convert the unicode string
2303
representing the option value in a store. This is not called for
2306
:param invalid: the action to be taken when an invalid value is
2307
encountered in a store. This is called only when from_unicode is
2308
invoked to convert a string and returns None or raise ValueError or
2309
TypeError. Accepted values are: None (ignore invalid values),
2310
'warning' (emit a warning), 'error' (emit an error message and
2313
:param unquote: should the unicode value be unquoted before conversion.
2314
This should be used only when the store providing the values cannot
2315
safely unquote them (see http://pad.lv/906897). It is provided so
2316
daughter classes can handle the quoting themselves.
2318
if override_from_env is None:
2319
override_from_env = []
2320
if default_from_env is None:
2321
default_from_env = []
2323
self.override_from_env = override_from_env
2324
# Convert the default value to a unicode string so all values are
2325
# strings internally before conversion (via from_unicode) is attempted.
2328
elif isinstance(default, list):
2329
# Only the empty list is supported
2331
raise AssertionError(
2332
'Only empty lists are supported as default values')
2334
elif isinstance(default, (str, unicode, bool, int, float)):
2335
# Rely on python to convert strings, booleans and integers
2336
self.default = u'%s' % (default,)
2337
elif callable(default):
2338
self.default = default
2340
# other python objects are not expected
2341
raise AssertionError('%r is not supported as a default value'
2343
self.default_from_env = default_from_env
2345
self.from_unicode = from_unicode
2346
self.unquote = unquote
2347
if invalid and invalid not in ('warning', 'error'):
2348
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2349
self.invalid = invalid
2355
def convert_from_unicode(self, store, unicode_value):
2356
if self.unquote and store is not None and unicode_value is not None:
2357
unicode_value = store.unquote(unicode_value)
2358
if self.from_unicode is None or unicode_value is None:
2359
# Don't convert or nothing to convert
2360
return unicode_value
2362
converted = self.from_unicode(unicode_value)
2363
except (ValueError, TypeError):
2364
# Invalid values are ignored
2366
if converted is None and self.invalid is not None:
2367
# The conversion failed
2368
if self.invalid == 'warning':
2369
trace.warning('Value "%s" is not valid for "%s"',
2370
unicode_value, self.name)
2371
elif self.invalid == 'error':
2372
raise errors.ConfigOptionValueError(self.name, unicode_value)
2375
def get_override(self):
2377
for var in self.override_from_env:
2379
# If the env variable is defined, its value takes precedence
2380
value = os.environ[var].decode(osutils.get_user_encoding())
2386
def get_default(self):
2388
for var in self.default_from_env:
2390
# If the env variable is defined, its value is the default one
2391
value = os.environ[var].decode(osutils.get_user_encoding())
2396
# Otherwise, fallback to the value defined at registration
2397
if callable(self.default):
2398
value = self.default()
2399
if not isinstance(value, unicode):
2400
raise AssertionError(
2401
"Callable default value for '%s' should be unicode"
2404
value = self.default
2407
def get_help_topic(self):
2410
def get_help_text(self, additional_see_also=None, plain=True):
2412
from bzrlib import help_topics
2413
result += help_topics._format_see_also(additional_see_also)
2415
result = help_topics.help_as_plain_text(result)
2419
# Predefined converters to get proper values from store
2421
def bool_from_store(unicode_str):
2422
return ui.bool_from_string(unicode_str)
2425
def int_from_store(unicode_str):
2426
return int(unicode_str)
2429
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2431
def int_SI_from_store(unicode_str):
2432
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2434
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2435
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2438
:return Integer, expanded to its base-10 value if a proper SI unit is
2439
found, None otherwise.
2441
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2442
p = re.compile(regexp, re.IGNORECASE)
2443
m = p.match(unicode_str)
2446
val, _, unit = m.groups()
2450
coeff = _unit_suffixes[unit.upper()]
2452
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2457
def float_from_store(unicode_str):
2458
return float(unicode_str)
2461
# Use a an empty dict to initialize an empty configobj avoiding all
2462
# parsing and encoding checks
2463
_list_converter_config = configobj.ConfigObj(
2464
{}, encoding='utf-8', list_values=True, interpolation=False)
2467
class ListOption(Option):
2469
def __init__(self, name, default=None, default_from_env=None,
2470
help=None, invalid=None):
2471
"""A list Option definition.
2473
This overrides the base class so the conversion from a unicode string
2474
can take quoting into account.
2476
super(ListOption, self).__init__(
2477
name, default=default, default_from_env=default_from_env,
2478
from_unicode=self.from_unicode, help=help,
2479
invalid=invalid, unquote=False)
2481
def from_unicode(self, unicode_str):
2482
if not isinstance(unicode_str, basestring):
2484
# Now inject our string directly as unicode. All callers got their
2485
# value from configobj, so values that need to be quoted are already
2487
_list_converter_config.reset()
2488
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2489
maybe_list = _list_converter_config['list']
2490
if isinstance(maybe_list, basestring):
2492
# A single value, most probably the user forgot (or didn't care
2493
# to add) the final ','
2496
# The empty string, convert to empty list
2499
# We rely on ConfigObj providing us with a list already
2504
class RegistryOption(Option):
2505
"""Option for a choice from a registry."""
2507
def __init__(self, name, registry, default_from_env=None,
2508
help=None, invalid=None):
2509
"""A registry based Option definition.
2511
This overrides the base class so the conversion from a unicode string
2512
can take quoting into account.
2514
super(RegistryOption, self).__init__(
2515
name, default=lambda: unicode(registry.default_key),
2516
default_from_env=default_from_env,
2517
from_unicode=self.from_unicode, help=help,
2518
invalid=invalid, unquote=False)
2519
self.registry = registry
2521
def from_unicode(self, unicode_str):
2522
if not isinstance(unicode_str, basestring):
2525
return self.registry.get(unicode_str)
2528
"Invalid value %s for %s."
2529
"See help for a list of possible values." % (unicode_str,
2534
ret = [self._help, "\n\nThe following values are supported:\n"]
2535
for key in self.registry.keys():
2536
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2540
class OptionRegistry(registry.Registry):
2541
"""Register config options by their name.
2543
This overrides ``registry.Registry`` to simplify registration by acquiring
2544
some information from the option object itself.
2547
def register(self, option):
2548
"""Register a new option to its name.
2550
:param option: The option to register. Its name is used as the key.
2552
super(OptionRegistry, self).register(option.name, option,
2555
def register_lazy(self, key, module_name, member_name):
2556
"""Register a new option to be loaded on request.
2558
:param key: the key to request the option later. Since the registration
2559
is lazy, it should be provided and match the option name.
2561
:param module_name: the python path to the module. Such as 'os.path'.
2563
:param member_name: the member of the module to return. If empty or
2564
None, get() will return the module itself.
2566
super(OptionRegistry, self).register_lazy(key,
2567
module_name, member_name)
2569
def get_help(self, key=None):
2570
"""Get the help text associated with the given key"""
2571
option = self.get(key)
2572
the_help = option.help
2573
if callable(the_help):
2574
return the_help(self, key)
2578
option_registry = OptionRegistry()
2581
# Registered options in lexicographical order
2583
option_registry.register(
2584
Option('append_revisions_only',
2585
default=None, from_unicode=bool_from_store, invalid='warning',
2587
Whether to only append revisions to the mainline.
2589
If this is set to true, then it is not possible to change the
2590
existing mainline of the branch.
2592
option_registry.register(
2593
ListOption('acceptable_keys',
2596
List of GPG key patterns which are acceptable for verification.
2598
option_registry.register(
2599
Option('add.maximum_file_size',
2600
default=u'20MB', from_unicode=int_SI_from_store,
2602
Size above which files should be added manually.
2604
Files below this size are added automatically when using ``bzr add`` without
2607
A negative value means disable the size check.
2609
option_registry.register(
2611
default=None, from_unicode=bool_from_store,
2613
Is the branch bound to ``bound_location``.
2615
If set to "True", the branch should act as a checkout, and push each commit to
2616
the bound_location. This option is normally set by ``bind``/``unbind``.
2618
See also: bound_location.
2620
option_registry.register(
2621
Option('bound_location',
2624
The location that commits should go to when acting as a checkout.
2626
This option is normally set by ``bind``.
2630
option_registry.register(
2631
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2633
Whether revisions associated with tags should be fetched.
2635
option_registry.register_lazy(
2636
'bzr.transform.orphan_policy', 'bzrlib.transform', 'opt_transform_orphan')
2637
option_registry.register(
2638
Option('bzr.workingtree.worth_saving_limit', default=10,
2639
from_unicode=int_from_store, invalid='warning',
2641
How many changes before saving the dirstate.
2643
-1 means that we will never rewrite the dirstate file for only
2644
stat-cache changes. Regardless of this setting, we will always rewrite
2645
the dirstate file if a file is added/removed/renamed/etc. This flag only
2646
affects the behavior of updating the dirstate file after we notice that
2647
a file has been touched.
2649
option_registry.register(
2650
Option('bugtracker', default=None,
2652
Default bug tracker to use.
2654
This bug tracker will be used for example when marking bugs
2655
as fixed using ``bzr commit --fixes``, if no explicit
2656
bug tracker was specified.
2658
option_registry.register(
2659
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2660
from_unicode=signature_policy_from_unicode,
2662
GPG checking policy.
2664
Possible values: require, ignore, check-available (default)
2666
this option will control whether bzr will require good gpg
2667
signatures, ignore them, or check them if they are
2670
option_registry.register(
2671
Option('child_submit_format',
2672
help='''The preferred format of submissions to this branch.'''))
2673
option_registry.register(
2674
Option('child_submit_to',
2675
help='''Where submissions to this branch are mailed to.'''))
2676
option_registry.register(
2677
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2678
from_unicode=signing_policy_from_unicode,
2682
Possible values: always, never, when-required (default)
2684
This option controls whether bzr will always create
2685
gpg signatures or not on commits.
2687
option_registry.register(
2688
Option('dirstate.fdatasync', default=True,
2689
from_unicode=bool_from_store,
2691
Flush dirstate changes onto physical disk?
2693
If true (default), working tree metadata changes are flushed through the
2694
OS buffers to physical disk. This is somewhat slower, but means data
2695
should not be lost if the machine crashes. See also repository.fdatasync.
2697
option_registry.register(
2698
ListOption('debug_flags', default=[],
2699
help='Debug flags to activate.'))
2700
option_registry.register(
2701
Option('default_format', default='2a',
2702
help='Format used when creating branches.'))
2703
option_registry.register(
2704
Option('dpush_strict', default=None,
2705
from_unicode=bool_from_store,
2707
The default value for ``dpush --strict``.
2709
If present, defines the ``--strict`` option default value for checking
2710
uncommitted changes before pushing into a different VCS without any
2711
custom bzr metadata.
2713
option_registry.register(
2715
help='The command called to launch an editor to enter a message.'))
2716
option_registry.register(
2717
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2718
help='The users identity'))
2719
option_registry.register(
2720
Option('gpg_signing_command',
2723
Program to use use for creating signatures.
2725
This should support at least the -u and --clearsign options.
2727
option_registry.register(
2728
Option('gpg_signing_key',
2731
GPG key to use for signing.
2733
This defaults to the first key associated with the users email.
2735
option_registry.register(
2736
Option('ignore_missing_extensions', default=False,
2737
from_unicode=bool_from_store,
2739
Control the missing extensions warning display.
2741
The warning will not be emitted if set to True.
2743
option_registry.register(
2745
help='Language to translate messages into.'))
2746
option_registry.register(
2747
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2749
Steal locks that appears to be dead.
2751
If set to True, bzr will check if a lock is supposed to be held by an
2752
active process from the same user on the same machine. If the user and
2753
machine match, but no process with the given PID is active, then bzr
2754
will automatically break the stale lock, and create a new lock for
2756
Otherwise, bzr will prompt as normal to break the lock.
2758
option_registry.register(
2759
Option('log_format', default='long',
2761
Log format to use when displaying revisions.
2763
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2764
may be provided by plugins.
2766
option_registry.register_lazy('mail_client', 'bzrlib.mail_client',
2768
option_registry.register(
2769
Option('output_encoding',
2770
help= 'Unicode encoding for output'
2771
' (terminal encoding if not specified).'))
2772
option_registry.register(
2773
Option('parent_location',
2776
The location of the default branch for pull or merge.
2778
This option is normally set when creating a branch, the first ``pull`` or by
2779
``pull --remember``.
2781
option_registry.register(
2782
Option('post_commit', default=None,
2784
Post commit functions.
2786
An ordered list of python functions to call, separated by spaces.
2788
Each function takes branch, rev_id as parameters.
2790
option_registry.register(
2791
Option('public_branch',
2794
A publically-accessible version of this branch.
2796
This implies that the branch setting this option is not publically-accessible.
2797
Used and set by ``bzr send``.
2799
option_registry.register(
2800
Option('push_location',
2803
The location of the default branch for push.
2805
This option is normally set by the first ``push`` or ``push --remember``.
2807
option_registry.register(
2808
Option('push_strict', default=None,
2809
from_unicode=bool_from_store,
2811
The default value for ``push --strict``.
2813
If present, defines the ``--strict`` option default value for checking
2814
uncommitted changes before sending a merge directive.
2816
option_registry.register(
2817
Option('repository.fdatasync', default=True,
2818
from_unicode=bool_from_store,
2820
Flush repository changes onto physical disk?
2822
If true (default), repository changes are flushed through the OS buffers
2823
to physical disk. This is somewhat slower, but means data should not be
2824
lost if the machine crashes. See also dirstate.fdatasync.
2826
option_registry.register_lazy('smtp_server',
2827
'bzrlib.smtp_connection', 'smtp_server')
2828
option_registry.register_lazy('smtp_password',
2829
'bzrlib.smtp_connection', 'smtp_password')
2830
option_registry.register_lazy('smtp_username',
2831
'bzrlib.smtp_connection', 'smtp_username')
2832
option_registry.register(
2833
Option('selftest.timeout',
2835
from_unicode=int_from_store,
2836
help='Abort selftest if one test takes longer than this many seconds',
2839
option_registry.register(
2840
Option('send_strict', default=None,
2841
from_unicode=bool_from_store,
2843
The default value for ``send --strict``.
2845
If present, defines the ``--strict`` option default value for checking
2846
uncommitted changes before sending a bundle.
2849
option_registry.register(
2850
Option('serve.client_timeout',
2851
default=300.0, from_unicode=float_from_store,
2852
help="If we wait for a new request from a client for more than"
2853
" X seconds, consider the client idle, and hangup."))
2854
option_registry.register(
2855
Option('stacked_on_location',
2857
help="""The location where this branch is stacked on."""))
2858
option_registry.register(
2859
Option('submit_branch',
2862
The branch you intend to submit your current work to.
2864
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2865
by the ``submit:`` revision spec.
2867
option_registry.register(
2869
help='''Where submissions from this branch are mailed to.'''))
2870
option_registry.register(
2871
ListOption('suppress_warnings',
2873
help="List of warning classes to suppress."))
2874
option_registry.register(
2875
Option('validate_signatures_in_log', default=False,
2876
from_unicode=bool_from_store, invalid='warning',
2877
help='''Whether to validate signatures in bzr log.'''))
2878
option_registry.register_lazy('ssl.ca_certs',
2879
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2881
option_registry.register_lazy('ssl.cert_reqs',
2882
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2885
class Section(object):
2886
"""A section defines a dict of option name => value.
2888
This is merely a read-only dict which can add some knowledge about the
2889
options. It is *not* a python dict object though and doesn't try to mimic
2893
def __init__(self, section_id, options):
2894
self.id = section_id
2895
# We re-use the dict-like object received
2896
self.options = options
2898
def get(self, name, default=None, expand=True):
2899
return self.options.get(name, default)
2901
def iter_option_names(self):
2902
for k in self.options.iterkeys():
2906
# Mostly for debugging use
2907
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2910
_NewlyCreatedOption = object()
2911
"""Was the option created during the MutableSection lifetime"""
2912
_DeletedOption = object()
2913
"""Was the option deleted during the MutableSection lifetime"""
2916
class MutableSection(Section):
2917
"""A section allowing changes and keeping track of the original values."""
2919
def __init__(self, section_id, options):
2920
super(MutableSection, self).__init__(section_id, options)
2921
self.reset_changes()
2923
def set(self, name, value):
2924
if name not in self.options:
2925
# This is a new option
2926
self.orig[name] = _NewlyCreatedOption
2927
elif name not in self.orig:
2928
self.orig[name] = self.get(name, None)
2929
self.options[name] = value
2931
def remove(self, name):
2932
if name not in self.orig:
2933
self.orig[name] = self.get(name, None)
2934
del self.options[name]
2936
def reset_changes(self):
2939
def apply_changes(self, dirty, store):
2940
"""Apply option value changes.
2942
``self`` has been reloaded from the persistent storage. ``dirty``
2943
contains the changes made since the previous loading.
2945
:param dirty: the mutable section containing the changes.
2947
:param store: the store containing the section
2949
for k, expected in dirty.orig.iteritems():
2950
actual = dirty.get(k, _DeletedOption)
2951
reloaded = self.get(k, _NewlyCreatedOption)
2952
if actual is _DeletedOption:
2953
if k in self.options:
2957
# Report concurrent updates in an ad-hoc way. This should only
2958
# occurs when different processes try to update the same option
2959
# which is not supported (as in: the config framework is not meant
2960
# to be used as a sharing mechanism).
2961
if expected != reloaded:
2962
if actual is _DeletedOption:
2963
actual = '<DELETED>'
2964
if reloaded is _NewlyCreatedOption:
2965
reloaded = '<CREATED>'
2966
if expected is _NewlyCreatedOption:
2967
expected = '<CREATED>'
2968
# Someone changed the value since we get it from the persistent
2970
trace.warning(gettext(
2971
"Option {0} in section {1} of {2} was changed"
2972
" from {3} to {4}. The {5} value will be saved.".format(
2973
k, self.id, store.external_url(), expected,
2975
# No need to keep track of these changes
2976
self.reset_changes()
2979
class Store(object):
2980
"""Abstract interface to persistent storage for configuration options."""
2982
readonly_section_class = Section
2983
mutable_section_class = MutableSection
2986
# Which sections need to be saved (by section id). We use a dict here
2987
# so the dirty sections can be shared by multiple callers.
2988
self.dirty_sections = {}
2990
def is_loaded(self):
2991
"""Returns True if the Store has been loaded.
2993
This is used to implement lazy loading and ensure the persistent
2994
storage is queried only when needed.
2996
raise NotImplementedError(self.is_loaded)
2999
"""Loads the Store from persistent storage."""
3000
raise NotImplementedError(self.load)
3002
def _load_from_string(self, bytes):
3003
"""Create a store from a string in configobj syntax.
3005
:param bytes: A string representing the file content.
3007
raise NotImplementedError(self._load_from_string)
3010
"""Unloads the Store.
3012
This should make is_loaded() return False. This is used when the caller
3013
knows that the persistent storage has changed or may have change since
3016
raise NotImplementedError(self.unload)
3018
def quote(self, value):
3019
"""Quote a configuration option value for storing purposes.
3021
This allows Stacks to present values as they will be stored.
3025
def unquote(self, value):
3026
"""Unquote a configuration option value into unicode.
3028
The received value is quoted as stored.
3033
"""Saves the Store to persistent storage."""
3034
raise NotImplementedError(self.save)
3036
def _need_saving(self):
3037
for s in self.dirty_sections.values():
3039
# At least one dirty section contains a modification
3043
def apply_changes(self, dirty_sections):
3044
"""Apply changes from dirty sections while checking for coherency.
3046
The Store content is discarded and reloaded from persistent storage to
3047
acquire up-to-date values.
3049
Dirty sections are MutableSection which kept track of the value they
3050
are expected to update.
3052
# We need an up-to-date version from the persistent storage, unload the
3053
# store. The reload will occur when needed (triggered by the first
3054
# get_mutable_section() call below.
3056
# Apply the changes from the preserved dirty sections
3057
for section_id, dirty in dirty_sections.iteritems():
3058
clean = self.get_mutable_section(section_id)
3059
clean.apply_changes(dirty, self)
3060
# Everything is clean now
3061
self.dirty_sections = {}
3063
def save_changes(self):
3064
"""Saves the Store to persistent storage if changes occurred.
3066
Apply the changes recorded in the mutable sections to a store content
3067
refreshed from persistent storage.
3069
raise NotImplementedError(self.save_changes)
3071
def external_url(self):
3072
raise NotImplementedError(self.external_url)
3074
def get_sections(self):
3075
"""Returns an ordered iterable of existing sections.
3077
:returns: An iterable of (store, section).
3079
raise NotImplementedError(self.get_sections)
3081
def get_mutable_section(self, section_id=None):
3082
"""Returns the specified mutable section.
3084
:param section_id: The section identifier
3086
raise NotImplementedError(self.get_mutable_section)
3089
# Mostly for debugging use
3090
return "<config.%s(%s)>" % (self.__class__.__name__,
3091
self.external_url())
3094
class CommandLineStore(Store):
3095
"A store to carry command line overrides for the config options."""
3097
def __init__(self, opts=None):
3098
super(CommandLineStore, self).__init__()
3105
# The dict should be cleared but not replaced so it can be shared.
3106
self.options.clear()
3108
def _from_cmdline(self, overrides):
3109
# Reset before accepting new definitions
3111
for over in overrides:
3113
name, value = over.split('=', 1)
3115
raise errors.BzrCommandError(
3116
gettext("Invalid '%s', should be of the form 'name=value'")
3118
self.options[name] = value
3120
def external_url(self):
3121
# Not an url but it makes debugging easier and is never needed
3125
def get_sections(self):
3126
yield self, self.readonly_section_class(None, self.options)
3129
class IniFileStore(Store):
3130
"""A config Store using ConfigObj for storage.
3132
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3133
serialize/deserialize the config file.
3137
"""A config Store using ConfigObj for storage.
3139
super(IniFileStore, self).__init__()
3140
self._config_obj = None
3142
def is_loaded(self):
3143
return self._config_obj != None
3146
self._config_obj = None
3147
self.dirty_sections = {}
3149
def _load_content(self):
3150
"""Load the config file bytes.
3152
This should be provided by subclasses
3154
:return: Byte string
3156
raise NotImplementedError(self._load_content)
3158
def _save_content(self, content):
3159
"""Save the config file bytes.
3161
This should be provided by subclasses
3163
:param content: Config file bytes to write
3165
raise NotImplementedError(self._save_content)
3168
"""Load the store from the associated file."""
3169
if self.is_loaded():
3171
content = self._load_content()
3172
self._load_from_string(content)
3173
for hook in ConfigHooks['load']:
3176
def _load_from_string(self, bytes):
3177
"""Create a config store from a string.
3179
:param bytes: A string representing the file content.
3181
if self.is_loaded():
3182
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3183
co_input = StringIO(bytes)
3185
# The config files are always stored utf8-encoded
3186
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3188
except configobj.ConfigObjError, e:
3189
self._config_obj = None
3190
raise errors.ParseConfigError(e.errors, self.external_url())
3191
except UnicodeDecodeError:
3192
raise errors.ConfigContentError(self.external_url())
3194
def save_changes(self):
3195
if not self.is_loaded():
3198
if not self._need_saving():
3200
# Preserve the current version
3201
dirty_sections = dict(self.dirty_sections.items())
3202
self.apply_changes(dirty_sections)
3203
# Save to the persistent storage
3207
if not self.is_loaded():
3211
self._config_obj.write(out)
3212
self._save_content(out.getvalue())
3213
for hook in ConfigHooks['save']:
3216
def get_sections(self):
3217
"""Get the configobj section in the file order.
3219
:returns: An iterable of (store, section).
3221
# We need a loaded store
3224
except (errors.NoSuchFile, errors.PermissionDenied):
3225
# If the file can't be read, there is no sections
3227
cobj = self._config_obj
3229
yield self, self.readonly_section_class(None, cobj)
3230
for section_name in cobj.sections:
3232
self.readonly_section_class(section_name,
3233
cobj[section_name]))
3235
def get_mutable_section(self, section_id=None):
3236
# We need a loaded store
3239
except errors.NoSuchFile:
3240
# The file doesn't exist, let's pretend it was empty
3241
self._load_from_string('')
3242
if section_id in self.dirty_sections:
3243
# We already created a mutable section for this id
3244
return self.dirty_sections[section_id]
3245
if section_id is None:
3246
section = self._config_obj
3248
section = self._config_obj.setdefault(section_id, {})
3249
mutable_section = self.mutable_section_class(section_id, section)
3250
# All mutable sections can become dirty
3251
self.dirty_sections[section_id] = mutable_section
3252
return mutable_section
3254
def quote(self, value):
3256
# configobj conflates automagical list values and quoting
3257
self._config_obj.list_values = True
3258
return self._config_obj._quote(value)
3260
self._config_obj.list_values = False
3262
def unquote(self, value):
3263
if value and isinstance(value, basestring):
3264
# _unquote doesn't handle None nor empty strings nor anything that
3265
# is not a string, really.
3266
value = self._config_obj._unquote(value)
3269
def external_url(self):
3270
# Since an IniFileStore can be used without a file (at least in tests),
3271
# it's better to provide something than raising a NotImplementedError.
3272
# All daughter classes are supposed to provide an implementation
3274
return 'In-Process Store, no URL'
3276
class TransportIniFileStore(IniFileStore):
3277
"""IniFileStore that loads files from a transport.
3279
:ivar transport: The transport object where the config file is located.
3281
:ivar file_name: The config file basename in the transport directory.
3284
def __init__(self, transport, file_name):
3285
"""A Store using a ini file on a Transport
3287
:param transport: The transport object where the config file is located.
3288
:param file_name: The config file basename in the transport directory.
3290
super(TransportIniFileStore, self).__init__()
3291
self.transport = transport
3292
self.file_name = file_name
3294
def _load_content(self):
3296
return self.transport.get_bytes(self.file_name)
3297
except errors.PermissionDenied:
3298
trace.warning("Permission denied while trying to load "
3299
"configuration store %s.", self.external_url())
3302
def _save_content(self, content):
3303
self.transport.put_bytes(self.file_name, content)
3305
def external_url(self):
3306
# FIXME: external_url should really accepts an optional relpath
3307
# parameter (bug #750169) :-/ -- vila 2011-04-04
3308
# The following will do in the interim but maybe we don't want to
3309
# expose a path here but rather a config ID and its associated
3310
# object </hand wawe>.
3311
return urlutils.join(self.transport.external_url(), self.file_name)
3314
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3315
# unlockable stores for use with objects that can already ensure the locking
3316
# (think branches). If different stores (not based on ConfigObj) are created,
3317
# they may face the same issue.
3320
class LockableIniFileStore(TransportIniFileStore):
3321
"""A ConfigObjStore using locks on save to ensure store integrity."""
3323
def __init__(self, transport, file_name, lock_dir_name=None):
3324
"""A config Store using ConfigObj for storage.
3326
:param transport: The transport object where the config file is located.
3328
:param file_name: The config file basename in the transport directory.
3330
if lock_dir_name is None:
3331
lock_dir_name = 'lock'
3332
self.lock_dir_name = lock_dir_name
3333
super(LockableIniFileStore, self).__init__(transport, file_name)
3334
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3336
def lock_write(self, token=None):
3337
"""Takes a write lock in the directory containing the config file.
3339
If the directory doesn't exist it is created.
3341
# FIXME: This doesn't check the ownership of the created directories as
3342
# ensure_config_dir_exists does. It should if the transport is local
3343
# -- vila 2011-04-06
3344
self.transport.create_prefix()
3345
return self._lock.lock_write(token)
3350
def break_lock(self):
3351
self._lock.break_lock()
3355
# We need to be able to override the undecorated implementation
3356
self.save_without_locking()
3358
def save_without_locking(self):
3359
super(LockableIniFileStore, self).save()
3362
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3363
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3364
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3366
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3367
# functions or a registry will make it easier and clearer for tests, focusing
3368
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3369
# on a poolie's remark)
3370
class GlobalStore(LockableIniFileStore):
3372
def __init__(self, possible_transports=None):
3373
t = transport.get_transport_from_path(
3374
config_dir(), possible_transports=possible_transports)
3375
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3379
class LocationStore(LockableIniFileStore):
3381
def __init__(self, possible_transports=None):
3382
t = transport.get_transport_from_path(
3383
config_dir(), possible_transports=possible_transports)
3384
super(LocationStore, self).__init__(t, 'locations.conf')
3385
self.id = 'locations'
3388
class BranchStore(TransportIniFileStore):
3390
def __init__(self, branch):
3391
super(BranchStore, self).__init__(branch.control_transport,
3393
self.branch = branch
3397
class ControlStore(LockableIniFileStore):
3399
def __init__(self, bzrdir):
3400
super(ControlStore, self).__init__(bzrdir.transport,
3402
lock_dir_name='branch_lock')
3406
class SectionMatcher(object):
3407
"""Select sections into a given Store.
3409
This is intended to be used to postpone getting an iterable of sections
3413
def __init__(self, store):
3416
def get_sections(self):
3417
# This is where we require loading the store so we can see all defined
3419
sections = self.store.get_sections()
3420
# Walk the revisions in the order provided
3421
for store, s in sections:
3425
def match(self, section):
3426
"""Does the proposed section match.
3428
:param section: A Section object.
3430
:returns: True if the section matches, False otherwise.
3432
raise NotImplementedError(self.match)
3435
class NameMatcher(SectionMatcher):
3437
def __init__(self, store, section_id):
3438
super(NameMatcher, self).__init__(store)
3439
self.section_id = section_id
3441
def match(self, section):
3442
return section.id == self.section_id
3445
class LocationSection(Section):
3447
def __init__(self, section, extra_path, branch_name=None):
3448
super(LocationSection, self).__init__(section.id, section.options)
3449
self.extra_path = extra_path
3450
if branch_name is None:
3452
self.locals = {'relpath': extra_path,
3453
'basename': urlutils.basename(extra_path),
3454
'branchname': branch_name}
3456
def get(self, name, default=None, expand=True):
3457
value = super(LocationSection, self).get(name, default)
3458
if value is not None and expand:
3459
policy_name = self.get(name + ':policy', None)
3460
policy = _policy_value.get(policy_name, POLICY_NONE)
3461
if policy == POLICY_APPENDPATH:
3462
value = urlutils.join(value, self.extra_path)
3463
# expand section local options right now (since POLICY_APPENDPATH
3464
# will never add options references, it's ok to expand after it).
3466
for is_ref, chunk in iter_option_refs(value):
3468
chunks.append(chunk)
3471
if ref in self.locals:
3472
chunks.append(self.locals[ref])
3474
chunks.append(chunk)
3475
value = ''.join(chunks)
3479
class StartingPathMatcher(SectionMatcher):
3480
"""Select sections for a given location respecting the Store order."""
3482
# FIXME: Both local paths and urls can be used for section names as well as
3483
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3484
# inherited the fuzziness from the previous ``LocationConfig``
3485
# implementation. We probably need to revisit which encoding is allowed for
3486
# both ``location`` and section names and how we normalize
3487
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3488
# related too. -- vila 2012-01-04
3490
def __init__(self, store, location):
3491
super(StartingPathMatcher, self).__init__(store)
3492
if location.startswith('file://'):
3493
location = urlutils.local_path_from_url(location)
3494
self.location = location
3496
def get_sections(self):
3497
"""Get all sections matching ``location`` in the store.
3499
The most generic sections are described first in the store, then more
3500
specific ones can be provided for reduced scopes.
3502
The returned section are therefore returned in the reversed order so
3503
the most specific ones can be found first.
3505
location_parts = self.location.rstrip('/').split('/')
3508
# Later sections are more specific, they should be returned first
3509
for _, section in reversed(list(store.get_sections())):
3510
if section.id is None:
3511
# The no-name section is always included if present
3512
yield store, LocationSection(section, self.location)
3514
section_path = section.id
3515
if section_path.startswith('file://'):
3516
# the location is already a local path or URL, convert the
3517
# section id to the same format
3518
section_path = urlutils.local_path_from_url(section_path)
3519
if (self.location.startswith(section_path)
3520
or fnmatch.fnmatch(self.location, section_path)):
3521
section_parts = section_path.rstrip('/').split('/')
3522
extra_path = '/'.join(location_parts[len(section_parts):])
3523
yield store, LocationSection(section, extra_path)
3526
class LocationMatcher(SectionMatcher):
3528
def __init__(self, store, location):
3529
super(LocationMatcher, self).__init__(store)
3530
url, params = urlutils.split_segment_parameters(location)
3531
if location.startswith('file://'):
3532
location = urlutils.local_path_from_url(location)
3533
self.location = location
3534
branch_name = params.get('branch')
3535
if branch_name is None:
3536
self.branch_name = urlutils.basename(self.location)
3538
self.branch_name = urlutils.unescape(branch_name)
3540
def _get_matching_sections(self):
3541
"""Get all sections matching ``location``."""
3542
# We slightly diverge from LocalConfig here by allowing the no-name
3543
# section as the most generic one and the lower priority.
3544
no_name_section = None
3546
# Filter out the no_name_section so _iter_for_location_by_parts can be
3547
# used (it assumes all sections have a name).
3548
for _, section in self.store.get_sections():
3549
if section.id is None:
3550
no_name_section = section
3552
all_sections.append(section)
3553
# Unfortunately _iter_for_location_by_parts deals with section names so
3554
# we have to resync.
3555
filtered_sections = _iter_for_location_by_parts(
3556
[s.id for s in all_sections], self.location)
3557
iter_all_sections = iter(all_sections)
3558
matching_sections = []
3559
if no_name_section is not None:
3560
matching_sections.append(
3561
(0, LocationSection(no_name_section, self.location)))
3562
for section_id, extra_path, length in filtered_sections:
3563
# a section id is unique for a given store so it's safe to take the
3564
# first matching section while iterating. Also, all filtered
3565
# sections are part of 'all_sections' and will always be found
3568
section = iter_all_sections.next()
3569
if section_id == section.id:
3570
section = LocationSection(section, extra_path,
3572
matching_sections.append((length, section))
3574
return matching_sections
3576
def get_sections(self):
3577
# Override the default implementation as we want to change the order
3578
matching_sections = self._get_matching_sections()
3579
# We want the longest (aka more specific) locations first
3580
sections = sorted(matching_sections,
3581
key=lambda (length, section): (length, section.id),
3583
# Sections mentioning 'ignore_parents' restrict the selection
3584
for _, section in sections:
3585
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3586
ignore = section.get('ignore_parents', None)
3587
if ignore is not None:
3588
ignore = ui.bool_from_string(ignore)
3591
# Finally, we have a valid section
3592
yield self.store, section
3595
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3596
"""Describes an expandable option reference.
3598
We want to match the most embedded reference first.
3600
I.e. for '{{foo}}' we will get '{foo}',
3601
for '{bar{baz}}' we will get '{baz}'
3604
def iter_option_refs(string):
3605
# Split isolate refs so every other chunk is a ref
3607
for chunk in _option_ref_re.split(string):
3612
class Stack(object):
3613
"""A stack of configurations where an option can be defined"""
3615
def __init__(self, sections_def, store=None, mutable_section_id=None):
3616
"""Creates a stack of sections with an optional store for changes.
3618
:param sections_def: A list of Section or callables that returns an
3619
iterable of Section. This defines the Sections for the Stack and
3620
can be called repeatedly if needed.
3622
:param store: The optional Store where modifications will be
3623
recorded. If none is specified, no modifications can be done.
3625
:param mutable_section_id: The id of the MutableSection where changes
3626
are recorded. This requires the ``store`` parameter to be
3629
self.sections_def = sections_def
3631
self.mutable_section_id = mutable_section_id
3633
def iter_sections(self):
3634
"""Iterate all the defined sections."""
3635
# Ensuring lazy loading is achieved by delaying section matching (which
3636
# implies querying the persistent storage) until it can't be avoided
3637
# anymore by using callables to describe (possibly empty) section
3639
for sections in self.sections_def:
3640
for store, section in sections():
3641
yield store, section
3643
def get(self, name, expand=True, convert=True):
3644
"""Return the *first* option value found in the sections.
3646
This is where we guarantee that sections coming from Store are loaded
3647
lazily: the loading is delayed until we need to either check that an
3648
option exists or get its value, which in turn may require to discover
3649
in which sections it can be defined. Both of these (section and option
3650
existence) require loading the store (even partially).
3652
:param name: The queried option.
3654
:param expand: Whether options references should be expanded.
3656
:param convert: Whether the option value should be converted from
3657
unicode (do nothing for non-registered options).
3659
:returns: The value of the option.
3661
# FIXME: No caching of options nor sections yet -- vila 20110503
3663
found_store = None # Where the option value has been found
3664
# If the option is registered, it may provide additional info about
3667
opt = option_registry.get(name)
3672
def expand_and_convert(val):
3673
# This may need to be called in different contexts if the value is
3674
# None or ends up being None during expansion or conversion.
3677
if isinstance(val, basestring):
3678
val = self._expand_options_in_string(val)
3680
trace.warning('Cannot expand "%s":'
3681
' %s does not support option expansion'
3682
% (name, type(val)))
3684
val = found_store.unquote(val)
3686
val = opt.convert_from_unicode(found_store, val)
3689
# First of all, check if the environment can override the configuration
3691
if opt is not None and opt.override_from_env:
3692
value = opt.get_override()
3693
value = expand_and_convert(value)
3695
for store, section in self.iter_sections():
3696
value = section.get(name)
3697
if value is not None:
3700
value = expand_and_convert(value)
3701
if opt is not None and value is None:
3702
# If the option is registered, it may provide a default value
3703
value = opt.get_default()
3704
value = expand_and_convert(value)
3705
for hook in ConfigHooks['get']:
3706
hook(self, name, value)
3709
def expand_options(self, string, env=None):
3710
"""Expand option references in the string in the configuration context.
3712
:param string: The string containing option(s) to expand.
3714
:param env: An option dict defining additional configuration options or
3715
overriding existing ones.
3717
:returns: The expanded string.
3719
return self._expand_options_in_string(string, env)
3721
def _expand_options_in_string(self, string, env=None, _refs=None):
3722
"""Expand options in the string in the configuration context.
3724
:param string: The string to be expanded.
3726
:param env: An option dict defining additional configuration options or
3727
overriding existing ones.
3729
:param _refs: Private list (FIFO) containing the options being expanded
3732
:returns: The expanded string.
3735
# Not much to expand there
3738
# What references are currently resolved (to detect loops)
3741
# We need to iterate until no more refs appear ({{foo}} will need two
3742
# iterations for example).
3747
for is_ref, chunk in iter_option_refs(result):
3749
chunks.append(chunk)
3754
raise errors.OptionExpansionLoop(string, _refs)
3756
value = self._expand_option(name, env, _refs)
3758
raise errors.ExpandingUnknownOption(name, string)
3759
chunks.append(value)
3761
result = ''.join(chunks)
3764
def _expand_option(self, name, env, _refs):
3765
if env is not None and name in env:
3766
# Special case, values provided in env takes precedence over
3770
value = self.get(name, expand=False, convert=False)
3771
value = self._expand_options_in_string(value, env, _refs)
3774
def _get_mutable_section(self):
3775
"""Get the MutableSection for the Stack.
3777
This is where we guarantee that the mutable section is lazily loaded:
3778
this means we won't load the corresponding store before setting a value
3779
or deleting an option. In practice the store will often be loaded but
3780
this helps catching some programming errors.
3783
section = store.get_mutable_section(self.mutable_section_id)
3784
return store, section
3786
def set(self, name, value):
3787
"""Set a new value for the option."""
3788
store, section = self._get_mutable_section()
3789
section.set(name, store.quote(value))
3790
for hook in ConfigHooks['set']:
3791
hook(self, name, value)
3793
def remove(self, name):
3794
"""Remove an existing option."""
3795
_, section = self._get_mutable_section()
3796
section.remove(name)
3797
for hook in ConfigHooks['remove']:
3801
# Mostly for debugging use
3802
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3804
def _get_overrides(self):
3805
# Hack around library_state.initialize never called
3806
if bzrlib.global_state is not None:
3807
return bzrlib.global_state.cmdline_overrides.get_sections()
3811
class MemoryStack(Stack):
3812
"""A configuration stack defined from a string.
3814
This is mainly intended for tests and requires no disk resources.
3817
def __init__(self, content=None):
3818
"""Create an in-memory stack from a given content.
3820
It uses a single store based on configobj and support reading and
3823
:param content: The initial content of the store. If None, the store is
3824
not loaded and ``_load_from_string`` can and should be used if
3827
store = IniFileStore()
3828
if content is not None:
3829
store._load_from_string(content)
3830
super(MemoryStack, self).__init__(
3831
[store.get_sections], store)
3834
class _CompatibleStack(Stack):
3835
"""Place holder for compatibility with previous design.
3837
This is intended to ease the transition from the Config-based design to the
3838
Stack-based design and should not be used nor relied upon by plugins.
3840
One assumption made here is that the daughter classes will all use Stores
3841
derived from LockableIniFileStore).
3843
It implements set() and remove () by re-loading the store before applying
3844
the modification and saving it.
3846
The long term plan being to implement a single write by store to save
3847
all modifications, this class should not be used in the interim.
3850
def set(self, name, value):
3853
super(_CompatibleStack, self).set(name, value)
3854
# Force a write to persistent storage
3857
def remove(self, name):
3860
super(_CompatibleStack, self).remove(name)
3861
# Force a write to persistent storage
3865
class GlobalStack(_CompatibleStack):
3866
"""Global options only stack.
3868
The following sections are queried:
3870
* command-line overrides,
3872
* the 'DEFAULT' section in bazaar.conf
3874
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3879
gstore = GlobalStore()
3880
super(GlobalStack, self).__init__(
3881
[self._get_overrides,
3882
NameMatcher(gstore, 'DEFAULT').get_sections],
3883
gstore, mutable_section_id='DEFAULT')
3886
class LocationStack(_CompatibleStack):
3887
"""Per-location options falling back to global options stack.
3890
The following sections are queried:
3892
* command-line overrides,
3894
* the sections matching ``location`` in ``locations.conf``, the order being
3895
defined by the number of path components in the section glob, higher
3896
numbers first (from most specific section to most generic).
3898
* the 'DEFAULT' section in bazaar.conf
3900
This stack will use the ``location`` section in locations.conf as its
3904
def __init__(self, location):
3905
"""Make a new stack for a location and global configuration.
3907
:param location: A URL prefix to """
3908
lstore = LocationStore()
3909
if location.startswith('file://'):
3910
location = urlutils.local_path_from_url(location)
3911
gstore = GlobalStore()
3912
super(LocationStack, self).__init__(
3913
[self._get_overrides,
3914
LocationMatcher(lstore, location).get_sections,
3915
NameMatcher(gstore, 'DEFAULT').get_sections],
3916
lstore, mutable_section_id=location)
3919
class BranchStack(Stack):
3920
"""Per-location options falling back to branch then global options stack.
3922
The following sections are queried:
3924
* command-line overrides,
3926
* the sections matching ``location`` in ``locations.conf``, the order being
3927
defined by the number of path components in the section glob, higher
3928
numbers first (from most specific section to most generic),
3930
* the no-name section in branch.conf,
3932
* the ``DEFAULT`` section in ``bazaar.conf``.
3934
This stack will use the no-name section in ``branch.conf`` as its
3938
def __init__(self, branch):
3939
lstore = LocationStore()
3940
bstore = branch._get_config_store()
3941
gstore = GlobalStore()
3942
super(BranchStack, self).__init__(
3943
[self._get_overrides,
3944
LocationMatcher(lstore, branch.base).get_sections,
3945
NameMatcher(bstore, None).get_sections,
3946
NameMatcher(gstore, 'DEFAULT').get_sections],
3948
self.branch = branch
3950
def lock_write(self, token=None):
3951
return self.branch.lock_write(token)
3954
return self.branch.unlock()
3957
def set(self, name, value):
3958
super(BranchStack, self).set(name, value)
3959
# Unlocking the branch will trigger a store.save_changes() so the last
3960
# unlock saves all the changes.
3963
def remove(self, name):
3964
super(BranchStack, self).remove(name)
3965
# Unlocking the branch will trigger a store.save_changes() so the last
3966
# unlock saves all the changes.
3969
class RemoteControlStack(_CompatibleStack):
3970
"""Remote control-only options stack."""
3972
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3973
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3974
# control.conf and is used only for stack options.
3976
def __init__(self, bzrdir):
3977
cstore = bzrdir._get_config_store()
3978
super(RemoteControlStack, self).__init__(
3979
[NameMatcher(cstore, None).get_sections],
3981
self.bzrdir = bzrdir
3984
class BranchOnlyStack(Stack):
3985
"""Branch-only options stack."""
3987
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3988
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3989
# -- vila 2011-12-16
3991
def __init__(self, branch):
3992
bstore = branch._get_config_store()
3993
super(BranchOnlyStack, self).__init__(
3994
[NameMatcher(bstore, None).get_sections],
3996
self.branch = branch
3998
def lock_write(self, token=None):
3999
return self.branch.lock_write(token)
4002
return self.branch.unlock()
4005
def set(self, name, value):
4006
super(BranchOnlyStack, self).set(name, value)
4007
# Force a write to persistent storage
4008
self.store.save_changes()
4011
def remove(self, name):
4012
super(BranchOnlyStack, self).remove(name)
4013
# Force a write to persistent storage
4014
self.store.save_changes()
4017
class cmd_config(commands.Command):
4018
__doc__ = """Display, set or remove a configuration option.
4020
Display the active value for a given option.
4022
If --all is specified, NAME is interpreted as a regular expression and all
4023
matching options are displayed mentioning their scope. The active value
4024
that bzr will take into account is the first one displayed for each option.
4026
If no NAME is given, --all .* is implied.
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
4033
takes_args = ['name?']
4037
# FIXME: This should be a registry option so that plugins can register
4038
# their own config files (or not) and will also address
4039
# http://pad.lv/788991 -- vila 20101115
4040
commands.Option('scope', help='Reduce the scope to the specified'
4041
' configuration file.',
4043
commands.Option('all',
4044
help='Display all the defined values for the matching options.',
4046
commands.Option('remove', help='Remove the option from'
4047
' the configuration file.'),
4050
_see_also = ['configuration']
4052
@commands.display_command
4053
def run(self, name=None, all=False, directory=None, scope=None,
4055
if directory is None:
4057
directory = urlutils.normalize_url(directory)
4059
raise errors.BzrError(
4060
'--all and --remove are mutually exclusive.')
4062
# Delete the option in the given scope
4063
self._remove_config_option(name, directory, scope)
4065
# Defaults to all options
4066
self._show_matching_options('.*', directory, scope)
4069
name, value = name.split('=', 1)
4071
# Display the option(s) value(s)
4073
self._show_matching_options(name, directory, scope)
4075
self._show_value(name, directory, scope)
4078
raise errors.BzrError(
4079
'Only one option can be set.')
4080
# Set the option value
4081
self._set_config_option(name, value, directory, scope)
4083
def _get_stack(self, directory, scope=None, write_access=False):
4084
"""Get the configuration stack specified by ``directory`` and ``scope``.
4086
:param directory: Where the configurations are derived from.
4088
:param scope: A specific config to start from.
4090
:param write_access: Whether a write access to the stack will be
4093
# FIXME: scope should allow access to plugin-specific stacks (even
4094
# reduced to the plugin-specific store), related to
4095
# http://pad.lv/788991 -- vila 2011-11-15
4096
if scope is not None:
4097
if scope == 'bazaar':
4098
return GlobalStack()
4099
elif scope == 'locations':
4100
return LocationStack(directory)
4101
elif scope == 'branch':
4103
controldir.ControlDir.open_containing_tree_or_branch(
4106
self.add_cleanup(br.lock_write().unlock)
4107
return br.get_config_stack()
4108
raise errors.NoSuchConfig(scope)
4112
controldir.ControlDir.open_containing_tree_or_branch(
4115
self.add_cleanup(br.lock_write().unlock)
4116
return br.get_config_stack()
4117
except errors.NotBranchError:
4118
return LocationStack(directory)
4120
def _quote_multiline(self, value):
4122
value = '"""' + value + '"""'
4125
def _show_value(self, name, directory, scope):
4126
conf = self._get_stack(directory, scope)
4127
value = conf.get(name, expand=True, convert=False)
4128
if value is not None:
4129
# Quote the value appropriately
4130
value = self._quote_multiline(value)
4131
self.outf.write('%s\n' % (value,))
4133
raise errors.NoSuchConfigOption(name)
4135
def _show_matching_options(self, name, directory, scope):
4136
name = lazy_regex.lazy_compile(name)
4137
# We want any error in the regexp to be raised *now* so we need to
4138
# avoid the delay introduced by the lazy regexp. But, we still do
4139
# want the nicer errors raised by lazy_regex.
4140
name._compile_and_collapse()
4143
conf = self._get_stack(directory, scope)
4144
for store, section in conf.iter_sections():
4145
for oname in section.iter_option_names():
4146
if name.search(oname):
4147
if cur_store_id != store.id:
4148
# Explain where the options are defined
4149
self.outf.write('%s:\n' % (store.id,))
4150
cur_store_id = store.id
4152
if (section.id is not None and cur_section != section.id):
4153
# Display the section id as it appears in the store
4154
# (None doesn't appear by definition)
4155
self.outf.write(' [%s]\n' % (section.id,))
4156
cur_section = section.id
4157
value = section.get(oname, expand=False)
4158
# Quote the value appropriately
4159
value = self._quote_multiline(value)
4160
self.outf.write(' %s = %s\n' % (oname, value))
4162
def _set_config_option(self, name, value, directory, scope):
4163
conf = self._get_stack(directory, scope, write_access=True)
4164
conf.set(name, value)
4166
def _remove_config_option(self, name, directory, scope):
4168
raise errors.BzrCommandError(
4169
'--remove expects an option to remove.')
4170
conf = self._get_stack(directory, scope, write_access=True)
4174
raise errors.NoSuchConfigOption(name)
4179
# We need adapters that can build a Store or a Stack in a test context. Test
4180
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4181
# themselves. The builder will receive a test instance and should return a
4182
# ready-to-use store or stack. Plugins that define new store/stacks can also
4183
# register themselves here to be tested against the tests defined in
4184
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4185
# for the same test.
4187
# The registered object should be a callable receiving a test instance
4188
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4190
test_store_builder_registry = registry.Registry()
4192
# The registered object should be a callable receiving a test instance
4193
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4195
test_stack_builder_registry = registry.Registry()