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 values should be unicode')
2403
value = self.default
2406
def get_help_topic(self):
2409
def get_help_text(self, additional_see_also=None, plain=True):
2411
from bzrlib import help_topics
2412
result += help_topics._format_see_also(additional_see_also)
2414
result = help_topics.help_as_plain_text(result)
2418
# Predefined converters to get proper values from store
2420
def bool_from_store(unicode_str):
2421
return ui.bool_from_string(unicode_str)
2424
def int_from_store(unicode_str):
2425
return int(unicode_str)
2428
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2430
def int_SI_from_store(unicode_str):
2431
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2433
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2434
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2437
:return Integer, expanded to its base-10 value if a proper SI unit is
2438
found, None otherwise.
2440
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2441
p = re.compile(regexp, re.IGNORECASE)
2442
m = p.match(unicode_str)
2445
val, _, unit = m.groups()
2449
coeff = _unit_suffixes[unit.upper()]
2451
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2456
def float_from_store(unicode_str):
2457
return float(unicode_str)
2460
# Use a an empty dict to initialize an empty configobj avoiding all
2461
# parsing and encoding checks
2462
_list_converter_config = configobj.ConfigObj(
2463
{}, encoding='utf-8', list_values=True, interpolation=False)
2466
class ListOption(Option):
2468
def __init__(self, name, default=None, default_from_env=None,
2469
help=None, invalid=None):
2470
"""A list Option definition.
2472
This overrides the base class so the conversion from a unicode string
2473
can take quoting into account.
2475
super(ListOption, self).__init__(
2476
name, default=default, default_from_env=default_from_env,
2477
from_unicode=self.from_unicode, help=help,
2478
invalid=invalid, unquote=False)
2480
def from_unicode(self, unicode_str):
2481
if not isinstance(unicode_str, basestring):
2483
# Now inject our string directly as unicode. All callers got their
2484
# value from configobj, so values that need to be quoted are already
2486
_list_converter_config.reset()
2487
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2488
maybe_list = _list_converter_config['list']
2489
if isinstance(maybe_list, basestring):
2491
# A single value, most probably the user forgot (or didn't care
2492
# to add) the final ','
2495
# The empty string, convert to empty list
2498
# We rely on ConfigObj providing us with a list already
2503
class RegistryOption(Option):
2504
"""Option for a choice from a registry."""
2506
def __init__(self, name, registry, default_from_env=None,
2507
help=None, invalid=None):
2508
"""A registry based Option definition.
2510
This overrides the base class so the conversion from a unicode string
2511
can take quoting into account.
2513
super(RegistryOption, self).__init__(
2514
name, default=lambda: unicode(registry.default_key),
2515
default_from_env=default_from_env,
2516
from_unicode=self.from_unicode, help=help,
2517
invalid=invalid, unquote=False)
2518
self.registry = registry
2520
def from_unicode(self, unicode_str):
2521
if not isinstance(unicode_str, basestring):
2524
return self.registry.get(unicode_str)
2527
"Invalid value %s for %s."
2528
"See help for a list of possible values." % (unicode_str,
2533
ret = [self._help, "\n\nThe following values are supported:\n"]
2534
for key in self.registry.keys():
2535
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2539
class OptionRegistry(registry.Registry):
2540
"""Register config options by their name.
2542
This overrides ``registry.Registry`` to simplify registration by acquiring
2543
some information from the option object itself.
2546
def register(self, option):
2547
"""Register a new option to its name.
2549
:param option: The option to register. Its name is used as the key.
2551
super(OptionRegistry, self).register(option.name, option,
2554
def register_lazy(self, key, module_name, member_name):
2555
"""Register a new option to be loaded on request.
2557
:param key: the key to request the option later. Since the registration
2558
is lazy, it should be provided and match the option name.
2560
:param module_name: the python path to the module. Such as 'os.path'.
2562
:param member_name: the member of the module to return. If empty or
2563
None, get() will return the module itself.
2565
super(OptionRegistry, self).register_lazy(key,
2566
module_name, member_name)
2568
def get_help(self, key=None):
2569
"""Get the help text associated with the given key"""
2570
option = self.get(key)
2571
the_help = option.help
2572
if callable(the_help):
2573
return the_help(self, key)
2577
option_registry = OptionRegistry()
2580
# Registered options in lexicographical order
2582
option_registry.register(
2583
Option('append_revisions_only',
2584
default=None, from_unicode=bool_from_store, invalid='warning',
2586
Whether to only append revisions to the mainline.
2588
If this is set to true, then it is not possible to change the
2589
existing mainline of the branch.
2591
option_registry.register(
2592
ListOption('acceptable_keys',
2595
List of GPG key patterns which are acceptable for verification.
2597
option_registry.register(
2598
Option('add.maximum_file_size',
2599
default=u'20MB', from_unicode=int_SI_from_store,
2601
Size above which files should be added manually.
2603
Files below this size are added automatically when using ``bzr add`` without
2606
A negative value means disable the size check.
2608
option_registry.register(
2610
default=None, from_unicode=bool_from_store,
2612
Is the branch bound to ``bound_location``.
2614
If set to "True", the branch should act as a checkout, and push each commit to
2615
the bound_location. This option is normally set by ``bind``/``unbind``.
2617
See also: bound_location.
2619
option_registry.register(
2620
Option('bound_location',
2623
The location that commits should go to when acting as a checkout.
2625
This option is normally set by ``bind``.
2629
option_registry.register(
2630
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2632
Whether revisions associated with tags should be fetched.
2634
option_registry.register_lazy(
2635
'bzr.transform.orphan_policy', 'bzrlib.transform', 'opt_transform_orphan')
2636
option_registry.register(
2637
Option('bzr.workingtree.worth_saving_limit', default=10,
2638
from_unicode=int_from_store, invalid='warning',
2640
How many changes before saving the dirstate.
2642
-1 means that we will never rewrite the dirstate file for only
2643
stat-cache changes. Regardless of this setting, we will always rewrite
2644
the dirstate file if a file is added/removed/renamed/etc. This flag only
2645
affects the behavior of updating the dirstate file after we notice that
2646
a file has been touched.
2648
option_registry.register(
2649
Option('bugtracker', default=None,
2651
Default bug tracker to use.
2653
This bug tracker will be used for example when marking bugs
2654
as fixed using ``bzr commit --fixes``, if no explicit
2655
bug tracker was specified.
2657
option_registry.register(
2658
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2659
from_unicode=signature_policy_from_unicode,
2661
GPG checking policy.
2663
Possible values: require, ignore, check-available (default)
2665
this option will control whether bzr will require good gpg
2666
signatures, ignore them, or check them if they are
2669
option_registry.register(
2670
Option('child_submit_format',
2671
help='''The preferred format of submissions to this branch.'''))
2672
option_registry.register(
2673
Option('child_submit_to',
2674
help='''Where submissions to this branch are mailed to.'''))
2675
option_registry.register(
2676
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2677
from_unicode=signing_policy_from_unicode,
2681
Possible values: always, never, when-required (default)
2683
This option controls whether bzr will always create
2684
gpg signatures or not on commits.
2686
option_registry.register(
2687
Option('dirstate.fdatasync', default=True,
2688
from_unicode=bool_from_store,
2690
Flush dirstate changes onto physical disk?
2692
If true (default), working tree metadata changes are flushed through the
2693
OS buffers to physical disk. This is somewhat slower, but means data
2694
should not be lost if the machine crashes. See also repository.fdatasync.
2696
option_registry.register(
2697
ListOption('debug_flags', default=[],
2698
help='Debug flags to activate.'))
2699
option_registry.register(
2700
Option('default_format', default='2a',
2701
help='Format used when creating branches.'))
2702
option_registry.register(
2703
Option('dpush_strict', default=None,
2704
from_unicode=bool_from_store,
2706
The default value for ``dpush --strict``.
2708
If present, defines the ``--strict`` option default value for checking
2709
uncommitted changes before pushing into a different VCS without any
2710
custom bzr metadata.
2712
option_registry.register(
2714
help='The command called to launch an editor to enter a message.'))
2715
option_registry.register(
2716
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2717
help='The users identity'))
2718
option_registry.register(
2719
Option('gpg_signing_command',
2722
Program to use use for creating signatures.
2724
This should support at least the -u and --clearsign options.
2726
option_registry.register(
2727
Option('gpg_signing_key',
2730
GPG key to use for signing.
2732
This defaults to the first key associated with the users email.
2734
option_registry.register(
2735
Option('ignore_missing_extensions', default=False,
2736
from_unicode=bool_from_store,
2738
Control the missing extensions warning display.
2740
The warning will not be emitted if set to True.
2742
option_registry.register(
2744
help='Language to translate messages into.'))
2745
option_registry.register(
2746
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2748
Steal locks that appears to be dead.
2750
If set to True, bzr will check if a lock is supposed to be held by an
2751
active process from the same user on the same machine. If the user and
2752
machine match, but no process with the given PID is active, then bzr
2753
will automatically break the stale lock, and create a new lock for
2755
Otherwise, bzr will prompt as normal to break the lock.
2757
option_registry.register(
2758
Option('log_format', default='long',
2760
Log format to use when displaying revisions.
2762
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2763
may be provided by plugins.
2765
option_registry.register_lazy('mail_client', 'bzrlib.mail_client',
2767
option_registry.register(
2768
Option('output_encoding',
2769
help= 'Unicode encoding for output'
2770
' (terminal encoding if not specified).'))
2771
option_registry.register(
2772
Option('parent_location',
2775
The location of the default branch for pull or merge.
2777
This option is normally set when creating a branch, the first ``pull`` or by
2778
``pull --remember``.
2780
option_registry.register(
2781
Option('post_commit', default=None,
2783
Post commit functions.
2785
An ordered list of python functions to call, separated by spaces.
2787
Each function takes branch, rev_id as parameters.
2789
option_registry.register(
2790
Option('public_branch',
2793
A publically-accessible version of this branch.
2795
This implies that the branch setting this option is not publically-accessible.
2796
Used and set by ``bzr send``.
2798
option_registry.register(
2799
Option('push_location',
2802
The location of the default branch for push.
2804
This option is normally set by the first ``push`` or ``push --remember``.
2806
option_registry.register(
2807
Option('push_strict', default=None,
2808
from_unicode=bool_from_store,
2810
The default value for ``push --strict``.
2812
If present, defines the ``--strict`` option default value for checking
2813
uncommitted changes before sending a merge directive.
2815
option_registry.register(
2816
Option('repository.fdatasync', default=True,
2817
from_unicode=bool_from_store,
2819
Flush repository changes onto physical disk?
2821
If true (default), repository changes are flushed through the OS buffers
2822
to physical disk. This is somewhat slower, but means data should not be
2823
lost if the machine crashes. See also dirstate.fdatasync.
2825
option_registry.register_lazy('smtp_server',
2826
'bzrlib.smtp_connection', 'smtp_server')
2827
option_registry.register_lazy('smtp_password',
2828
'bzrlib.smtp_connection', 'smtp_password')
2829
option_registry.register_lazy('smtp_username',
2830
'bzrlib.smtp_connection', 'smtp_username')
2831
option_registry.register(
2832
Option('selftest.timeout',
2834
from_unicode=int_from_store,
2835
help='Abort selftest if one test takes longer than this many seconds',
2838
option_registry.register(
2839
Option('send_strict', default=None,
2840
from_unicode=bool_from_store,
2842
The default value for ``send --strict``.
2844
If present, defines the ``--strict`` option default value for checking
2845
uncommitted changes before sending a bundle.
2848
option_registry.register(
2849
Option('serve.client_timeout',
2850
default=300.0, from_unicode=float_from_store,
2851
help="If we wait for a new request from a client for more than"
2852
" X seconds, consider the client idle, and hangup."))
2853
option_registry.register(
2854
Option('stacked_on_location',
2856
help="""The location where this branch is stacked on."""))
2857
option_registry.register(
2858
Option('submit_branch',
2861
The branch you intend to submit your current work to.
2863
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2864
by the ``submit:`` revision spec.
2866
option_registry.register(
2868
help='''Where submissions from this branch are mailed to.'''))
2869
option_registry.register(
2870
ListOption('suppress_warnings',
2872
help="List of warning classes to suppress."))
2873
option_registry.register(
2874
Option('validate_signatures_in_log', default=False,
2875
from_unicode=bool_from_store, invalid='warning',
2876
help='''Whether to validate signatures in bzr log.'''))
2877
option_registry.register_lazy('ssl.ca_certs',
2878
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2880
option_registry.register_lazy('ssl.cert_reqs',
2881
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2884
class Section(object):
2885
"""A section defines a dict of option name => value.
2887
This is merely a read-only dict which can add some knowledge about the
2888
options. It is *not* a python dict object though and doesn't try to mimic
2892
def __init__(self, section_id, options):
2893
self.id = section_id
2894
# We re-use the dict-like object received
2895
self.options = options
2897
def get(self, name, default=None, expand=True):
2898
return self.options.get(name, default)
2900
def iter_option_names(self):
2901
for k in self.options.iterkeys():
2905
# Mostly for debugging use
2906
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2909
_NewlyCreatedOption = object()
2910
"""Was the option created during the MutableSection lifetime"""
2911
_DeletedOption = object()
2912
"""Was the option deleted during the MutableSection lifetime"""
2915
class MutableSection(Section):
2916
"""A section allowing changes and keeping track of the original values."""
2918
def __init__(self, section_id, options):
2919
super(MutableSection, self).__init__(section_id, options)
2920
self.reset_changes()
2922
def set(self, name, value):
2923
if name not in self.options:
2924
# This is a new option
2925
self.orig[name] = _NewlyCreatedOption
2926
elif name not in self.orig:
2927
self.orig[name] = self.get(name, None)
2928
self.options[name] = value
2930
def remove(self, name):
2931
if name not in self.orig:
2932
self.orig[name] = self.get(name, None)
2933
del self.options[name]
2935
def reset_changes(self):
2938
def apply_changes(self, dirty, store):
2939
"""Apply option value changes.
2941
``self`` has been reloaded from the persistent storage. ``dirty``
2942
contains the changes made since the previous loading.
2944
:param dirty: the mutable section containing the changes.
2946
:param store: the store containing the section
2948
for k, expected in dirty.orig.iteritems():
2949
actual = dirty.get(k, _DeletedOption)
2950
reloaded = self.get(k, _NewlyCreatedOption)
2951
if actual is _DeletedOption:
2952
if k in self.options:
2956
# Report concurrent updates in an ad-hoc way. This should only
2957
# occurs when different processes try to update the same option
2958
# which is not supported (as in: the config framework is not meant
2959
# to be used a sharing mechanism).
2960
if expected != reloaded:
2961
if actual is _DeletedOption:
2962
actual = '<DELETED>'
2963
if reloaded is _NewlyCreatedOption:
2964
reloaded = '<CREATED>'
2965
if expected is _NewlyCreatedOption:
2966
expected = '<CREATED>'
2967
# Someone changed the value since we get it from the persistent
2969
trace.warning(gettext(
2970
"Option {0} in section {1} of {2} was changed"
2971
" from {3} to {4}. The {5} value will be saved.".format(
2972
k, self.id, store.external_url(), expected,
2974
# No need to keep track of these changes
2975
self.reset_changes()
2978
class Store(object):
2979
"""Abstract interface to persistent storage for configuration options."""
2981
readonly_section_class = Section
2982
mutable_section_class = MutableSection
2985
# Which sections need to be saved
2986
self.dirty_sections = []
2988
def is_loaded(self):
2989
"""Returns True if the Store has been loaded.
2991
This is used to implement lazy loading and ensure the persistent
2992
storage is queried only when needed.
2994
raise NotImplementedError(self.is_loaded)
2997
"""Loads the Store from persistent storage."""
2998
raise NotImplementedError(self.load)
3000
def _load_from_string(self, bytes):
3001
"""Create a store from a string in configobj syntax.
3003
:param bytes: A string representing the file content.
3005
raise NotImplementedError(self._load_from_string)
3008
"""Unloads the Store.
3010
This should make is_loaded() return False. This is used when the caller
3011
knows that the persistent storage has changed or may have change since
3014
raise NotImplementedError(self.unload)
3016
def quote(self, value):
3017
"""Quote a configuration option value for storing purposes.
3019
This allows Stacks to present values as they will be stored.
3023
def unquote(self, value):
3024
"""Unquote a configuration option value into unicode.
3026
The received value is quoted as stored.
3031
"""Saves the Store to persistent storage."""
3032
raise NotImplementedError(self.save)
3034
def _need_saving(self):
3035
for s in self.dirty_sections:
3037
# At least one dirty section contains a modification
3041
def apply_changes(self, dirty_sections):
3042
"""Apply changes from dirty sections while checking for coherency.
3044
The Store content is discarded and reloaded from persistent storage to
3045
acquire up-to-date values.
3047
Dirty sections are MutableSection which kept track of the value they
3048
are expected to update.
3050
# We need an up-to-date version from the persistent storage, unload the
3051
# store. The reload will occur when needed (triggered by the first
3052
# get_mutable_section() call below.
3054
# Apply the changes from the preserved dirty sections
3055
for dirty in dirty_sections:
3056
clean = self.get_mutable_section(dirty.id)
3057
clean.apply_changes(dirty, self)
3058
# Everything is clean now
3059
self.dirty_sections = []
3061
def save_changes(self):
3062
"""Saves the Store to persistent storage if changes occurred.
3064
Apply the changes recorded in the mutable sections to a store content
3065
refreshed from persistent storage.
3067
raise NotImplementedError(self.save_changes)
3069
def external_url(self):
3070
raise NotImplementedError(self.external_url)
3072
def get_sections(self):
3073
"""Returns an ordered iterable of existing sections.
3075
:returns: An iterable of (store, section).
3077
raise NotImplementedError(self.get_sections)
3079
def get_mutable_section(self, section_id=None):
3080
"""Returns the specified mutable section.
3082
:param section_id: The section identifier
3084
raise NotImplementedError(self.get_mutable_section)
3087
# Mostly for debugging use
3088
return "<config.%s(%s)>" % (self.__class__.__name__,
3089
self.external_url())
3092
class CommandLineStore(Store):
3093
"A store to carry command line overrides for the config options."""
3095
def __init__(self, opts=None):
3096
super(CommandLineStore, self).__init__()
3103
# The dict should be cleared but not replaced so it can be shared.
3104
self.options.clear()
3106
def _from_cmdline(self, overrides):
3107
# Reset before accepting new definitions
3109
for over in overrides:
3111
name, value = over.split('=', 1)
3113
raise errors.BzrCommandError(
3114
gettext("Invalid '%s', should be of the form 'name=value'")
3116
self.options[name] = value
3118
def external_url(self):
3119
# Not an url but it makes debugging easier and is never needed
3123
def get_sections(self):
3124
yield self, self.readonly_section_class(None, self.options)
3127
class IniFileStore(Store):
3128
"""A config Store using ConfigObj for storage.
3130
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3131
serialize/deserialize the config file.
3135
"""A config Store using ConfigObj for storage.
3137
super(IniFileStore, self).__init__()
3138
self._config_obj = None
3140
def is_loaded(self):
3141
return self._config_obj != None
3144
self._config_obj = None
3145
self.dirty_sections = []
3147
def _load_content(self):
3148
"""Load the config file bytes.
3150
This should be provided by subclasses
3152
:return: Byte string
3154
raise NotImplementedError(self._load_content)
3156
def _save_content(self, content):
3157
"""Save the config file bytes.
3159
This should be provided by subclasses
3161
:param content: Config file bytes to write
3163
raise NotImplementedError(self._save_content)
3166
"""Load the store from the associated file."""
3167
if self.is_loaded():
3169
content = self._load_content()
3170
self._load_from_string(content)
3171
for hook in ConfigHooks['load']:
3174
def _load_from_string(self, bytes):
3175
"""Create a config store from a string.
3177
:param bytes: A string representing the file content.
3179
if self.is_loaded():
3180
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3181
co_input = StringIO(bytes)
3183
# The config files are always stored utf8-encoded
3184
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3186
except configobj.ConfigObjError, e:
3187
self._config_obj = None
3188
raise errors.ParseConfigError(e.errors, self.external_url())
3189
except UnicodeDecodeError:
3190
raise errors.ConfigContentError(self.external_url())
3192
def save_changes(self):
3193
if not self.is_loaded():
3196
if not self._need_saving():
3198
# Preserve the current version
3199
current = self._config_obj
3200
dirty_sections = list(self.dirty_sections)
3201
self.apply_changes(dirty_sections)
3202
# Save to the persistent storage
3206
if not self.is_loaded():
3210
self._config_obj.write(out)
3211
self._save_content(out.getvalue())
3212
for hook in ConfigHooks['save']:
3215
def get_sections(self):
3216
"""Get the configobj section in the file order.
3218
:returns: An iterable of (store, section).
3220
# We need a loaded store
3223
except (errors.NoSuchFile, errors.PermissionDenied):
3224
# If the file can't be read, there is no sections
3226
cobj = self._config_obj
3228
yield self, self.readonly_section_class(None, cobj)
3229
for section_name in cobj.sections:
3231
self.readonly_section_class(section_name,
3232
cobj[section_name]))
3234
def get_mutable_section(self, section_id=None):
3235
# We need a loaded store
3238
except errors.NoSuchFile:
3239
# The file doesn't exist, let's pretend it was empty
3240
self._load_from_string('')
3241
if section_id is None:
3242
section = self._config_obj
3244
section = self._config_obj.setdefault(section_id, {})
3245
mutable_section = self.mutable_section_class(section_id, section)
3246
# All mutable sections can become dirty
3247
self.dirty_sections.append(mutable_section)
3248
return mutable_section
3250
def quote(self, value):
3252
# configobj conflates automagical list values and quoting
3253
self._config_obj.list_values = True
3254
return self._config_obj._quote(value)
3256
self._config_obj.list_values = False
3258
def unquote(self, value):
3259
if value and isinstance(value, basestring):
3260
# _unquote doesn't handle None nor empty strings nor anything that
3261
# is not a string, really.
3262
value = self._config_obj._unquote(value)
3265
def external_url(self):
3266
# Since an IniFileStore can be used without a file (at least in tests),
3267
# it's better to provide something than raising a NotImplementedError.
3268
# All daughter classes are supposed to provide an implementation
3270
return 'In-Process Store, no URL'
3272
class TransportIniFileStore(IniFileStore):
3273
"""IniFileStore that loads files from a transport.
3275
:ivar transport: The transport object where the config file is located.
3277
:ivar file_name: The config file basename in the transport directory.
3280
def __init__(self, transport, file_name):
3281
"""A Store using a ini file on a Transport
3283
:param transport: The transport object where the config file is located.
3284
:param file_name: The config file basename in the transport directory.
3286
super(TransportIniFileStore, self).__init__()
3287
self.transport = transport
3288
self.file_name = file_name
3290
def _load_content(self):
3292
return self.transport.get_bytes(self.file_name)
3293
except errors.PermissionDenied:
3294
trace.warning("Permission denied while trying to load "
3295
"configuration store %s.", self.external_url())
3298
def _save_content(self, content):
3299
self.transport.put_bytes(self.file_name, content)
3301
def external_url(self):
3302
# FIXME: external_url should really accepts an optional relpath
3303
# parameter (bug #750169) :-/ -- vila 2011-04-04
3304
# The following will do in the interim but maybe we don't want to
3305
# expose a path here but rather a config ID and its associated
3306
# object </hand wawe>.
3307
return urlutils.join(self.transport.external_url(), self.file_name)
3310
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3311
# unlockable stores for use with objects that can already ensure the locking
3312
# (think branches). If different stores (not based on ConfigObj) are created,
3313
# they may face the same issue.
3316
class LockableIniFileStore(TransportIniFileStore):
3317
"""A ConfigObjStore using locks on save to ensure store integrity."""
3319
def __init__(self, transport, file_name, lock_dir_name=None):
3320
"""A config Store using ConfigObj for storage.
3322
:param transport: The transport object where the config file is located.
3324
:param file_name: The config file basename in the transport directory.
3326
if lock_dir_name is None:
3327
lock_dir_name = 'lock'
3328
self.lock_dir_name = lock_dir_name
3329
super(LockableIniFileStore, self).__init__(transport, file_name)
3330
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3332
def lock_write(self, token=None):
3333
"""Takes a write lock in the directory containing the config file.
3335
If the directory doesn't exist it is created.
3337
# FIXME: This doesn't check the ownership of the created directories as
3338
# ensure_config_dir_exists does. It should if the transport is local
3339
# -- vila 2011-04-06
3340
self.transport.create_prefix()
3341
return self._lock.lock_write(token)
3346
def break_lock(self):
3347
self._lock.break_lock()
3351
# We need to be able to override the undecorated implementation
3352
self.save_without_locking()
3354
def save_without_locking(self):
3355
super(LockableIniFileStore, self).save()
3358
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3359
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3360
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3362
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3363
# functions or a registry will make it easier and clearer for tests, focusing
3364
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3365
# on a poolie's remark)
3366
class GlobalStore(LockableIniFileStore):
3368
def __init__(self, possible_transports=None):
3369
t = transport.get_transport_from_path(
3370
config_dir(), possible_transports=possible_transports)
3371
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3375
class LocationStore(LockableIniFileStore):
3377
def __init__(self, possible_transports=None):
3378
t = transport.get_transport_from_path(
3379
config_dir(), possible_transports=possible_transports)
3380
super(LocationStore, self).__init__(t, 'locations.conf')
3381
self.id = 'locations'
3384
class BranchStore(TransportIniFileStore):
3386
def __init__(self, branch):
3387
super(BranchStore, self).__init__(branch.control_transport,
3389
self.branch = branch
3393
class ControlStore(LockableIniFileStore):
3395
def __init__(self, bzrdir):
3396
super(ControlStore, self).__init__(bzrdir.transport,
3398
lock_dir_name='branch_lock')
3402
class SectionMatcher(object):
3403
"""Select sections into a given Store.
3405
This is intended to be used to postpone getting an iterable of sections
3409
def __init__(self, store):
3412
def get_sections(self):
3413
# This is where we require loading the store so we can see all defined
3415
sections = self.store.get_sections()
3416
# Walk the revisions in the order provided
3417
for store, s in sections:
3421
def match(self, section):
3422
"""Does the proposed section match.
3424
:param section: A Section object.
3426
:returns: True if the section matches, False otherwise.
3428
raise NotImplementedError(self.match)
3431
class NameMatcher(SectionMatcher):
3433
def __init__(self, store, section_id):
3434
super(NameMatcher, self).__init__(store)
3435
self.section_id = section_id
3437
def match(self, section):
3438
return section.id == self.section_id
3441
class LocationSection(Section):
3443
def __init__(self, section, extra_path):
3444
super(LocationSection, self).__init__(section.id, section.options)
3445
self.extra_path = extra_path
3446
self.locals = {'relpath': extra_path,
3447
'basename': urlutils.basename(extra_path)}
3449
def get(self, name, default=None, expand=True):
3450
value = super(LocationSection, self).get(name, default)
3451
if value is not None and expand:
3452
policy_name = self.get(name + ':policy', None)
3453
policy = _policy_value.get(policy_name, POLICY_NONE)
3454
if policy == POLICY_APPENDPATH:
3455
value = urlutils.join(value, self.extra_path)
3456
# expand section local options right now (since POLICY_APPENDPATH
3457
# will never add options references, it's ok to expand after it).
3459
for is_ref, chunk in iter_option_refs(value):
3461
chunks.append(chunk)
3464
if ref in self.locals:
3465
chunks.append(self.locals[ref])
3467
chunks.append(chunk)
3468
value = ''.join(chunks)
3472
class StartingPathMatcher(SectionMatcher):
3473
"""Select sections for a given location respecting the Store order."""
3475
# FIXME: Both local paths and urls can be used for section names as well as
3476
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3477
# inherited the fuzziness from the previous ``LocationConfig``
3478
# implementation. We probably need to revisit which encoding is allowed for
3479
# both ``location`` and section names and how we normalize
3480
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3481
# related too. -- vila 2012-01-04
3483
def __init__(self, store, location):
3484
super(StartingPathMatcher, self).__init__(store)
3485
if location.startswith('file://'):
3486
location = urlutils.local_path_from_url(location)
3487
self.location = location
3489
def get_sections(self):
3490
"""Get all sections matching ``location`` in the store.
3492
The most generic sections are described first in the store, then more
3493
specific ones can be provided for reduced scopes.
3495
The returned section are therefore returned in the reversed order so
3496
the most specific ones can be found first.
3498
location_parts = self.location.rstrip('/').split('/')
3501
# Later sections are more specific, they should be returned first
3502
for _, section in reversed(list(store.get_sections())):
3503
if section.id is None:
3504
# The no-name section is always included if present
3505
yield store, LocationSection(section, self.location)
3507
section_path = section.id
3508
if section_path.startswith('file://'):
3509
# the location is already a local path or URL, convert the
3510
# section id to the same format
3511
section_path = urlutils.local_path_from_url(section_path)
3512
if (self.location.startswith(section_path)
3513
or fnmatch.fnmatch(self.location, section_path)):
3514
section_parts = section_path.rstrip('/').split('/')
3515
extra_path = '/'.join(location_parts[len(section_parts):])
3516
yield store, LocationSection(section, extra_path)
3519
class LocationMatcher(SectionMatcher):
3521
def __init__(self, store, location):
3522
super(LocationMatcher, self).__init__(store)
3523
if location.startswith('file://'):
3524
location = urlutils.local_path_from_url(location)
3525
self.location = location
3527
def _get_matching_sections(self):
3528
"""Get all sections matching ``location``."""
3529
# We slightly diverge from LocalConfig here by allowing the no-name
3530
# section as the most generic one and the lower priority.
3531
no_name_section = None
3533
# Filter out the no_name_section so _iter_for_location_by_parts can be
3534
# used (it assumes all sections have a name).
3535
for _, section in self.store.get_sections():
3536
if section.id is None:
3537
no_name_section = section
3539
all_sections.append(section)
3540
# Unfortunately _iter_for_location_by_parts deals with section names so
3541
# we have to resync.
3542
filtered_sections = _iter_for_location_by_parts(
3543
[s.id for s in all_sections], self.location)
3544
iter_all_sections = iter(all_sections)
3545
matching_sections = []
3546
if no_name_section is not None:
3547
matching_sections.append(
3548
(0, LocationSection(no_name_section, self.location)))
3549
for section_id, extra_path, length in filtered_sections:
3550
# a section id is unique for a given store so it's safe to take the
3551
# first matching section while iterating. Also, all filtered
3552
# sections are part of 'all_sections' and will always be found
3555
section = iter_all_sections.next()
3556
if section_id == section.id:
3557
matching_sections.append(
3558
(length, LocationSection(section, extra_path)))
3560
return matching_sections
3562
def get_sections(self):
3563
# Override the default implementation as we want to change the order
3564
matching_sections = self._get_matching_sections()
3565
# We want the longest (aka more specific) locations first
3566
sections = sorted(matching_sections,
3567
key=lambda (length, section): (length, section.id),
3569
# Sections mentioning 'ignore_parents' restrict the selection
3570
for _, section in sections:
3571
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3572
ignore = section.get('ignore_parents', None)
3573
if ignore is not None:
3574
ignore = ui.bool_from_string(ignore)
3577
# Finally, we have a valid section
3578
yield self.store, section
3581
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3582
"""Describes an expandable option reference.
3584
We want to match the most embedded reference first.
3586
I.e. for '{{foo}}' we will get '{foo}',
3587
for '{bar{baz}}' we will get '{baz}'
3590
def iter_option_refs(string):
3591
# Split isolate refs so every other chunk is a ref
3593
for chunk in _option_ref_re.split(string):
3598
class Stack(object):
3599
"""A stack of configurations where an option can be defined"""
3601
def __init__(self, sections_def, store=None, mutable_section_id=None):
3602
"""Creates a stack of sections with an optional store for changes.
3604
:param sections_def: A list of Section or callables that returns an
3605
iterable of Section. This defines the Sections for the Stack and
3606
can be called repeatedly if needed.
3608
:param store: The optional Store where modifications will be
3609
recorded. If none is specified, no modifications can be done.
3611
:param mutable_section_id: The id of the MutableSection where changes
3612
are recorded. This requires the ``store`` parameter to be
3615
self.sections_def = sections_def
3617
self.mutable_section_id = mutable_section_id
3619
def iter_sections(self):
3620
"""Iterate all the defined sections."""
3621
# Ensuring lazy loading is achieved by delaying section matching (which
3622
# implies querying the persistent storage) until it can't be avoided
3623
# anymore by using callables to describe (possibly empty) section
3625
for sections in self.sections_def:
3626
for store, section in sections():
3627
yield store, section
3629
def get(self, name, expand=True, convert=True):
3630
"""Return the *first* option value found in the sections.
3632
This is where we guarantee that sections coming from Store are loaded
3633
lazily: the loading is delayed until we need to either check that an
3634
option exists or get its value, which in turn may require to discover
3635
in which sections it can be defined. Both of these (section and option
3636
existence) require loading the store (even partially).
3638
:param name: The queried option.
3640
:param expand: Whether options references should be expanded.
3642
:param convert: Whether the option value should be converted from
3643
unicode (do nothing for non-registered options).
3645
:returns: The value of the option.
3647
# FIXME: No caching of options nor sections yet -- vila 20110503
3649
found_store = None # Where the option value has been found
3650
# If the option is registered, it may provide additional info about
3653
opt = option_registry.get(name)
3658
def expand_and_convert(val):
3659
# This may need to be called in different contexts if the value is
3660
# None or ends up being None during expansion or conversion.
3663
if isinstance(val, basestring):
3664
val = self._expand_options_in_string(val)
3666
trace.warning('Cannot expand "%s":'
3667
' %s does not support option expansion'
3668
% (name, type(val)))
3670
val = found_store.unquote(val)
3672
val = opt.convert_from_unicode(found_store, val)
3675
# First of all, check if the environment can override the configuration
3677
if opt is not None and opt.override_from_env:
3678
value = opt.get_override()
3679
value = expand_and_convert(value)
3681
for store, section in self.iter_sections():
3682
value = section.get(name)
3683
if value is not None:
3686
value = expand_and_convert(value)
3687
if opt is not None and value is None:
3688
# If the option is registered, it may provide a default value
3689
value = opt.get_default()
3690
value = expand_and_convert(value)
3691
for hook in ConfigHooks['get']:
3692
hook(self, name, value)
3695
def expand_options(self, string, env=None):
3696
"""Expand option references in the string in the configuration context.
3698
:param string: The string containing option(s) to expand.
3700
:param env: An option dict defining additional configuration options or
3701
overriding existing ones.
3703
:returns: The expanded string.
3705
return self._expand_options_in_string(string, env)
3707
def _expand_options_in_string(self, string, env=None, _refs=None):
3708
"""Expand options in the string in the configuration context.
3710
:param string: The string to be expanded.
3712
:param env: An option dict defining additional configuration options or
3713
overriding existing ones.
3715
:param _refs: Private list (FIFO) containing the options being expanded
3718
:returns: The expanded string.
3721
# Not much to expand there
3724
# What references are currently resolved (to detect loops)
3727
# We need to iterate until no more refs appear ({{foo}} will need two
3728
# iterations for example).
3733
for is_ref, chunk in iter_option_refs(result):
3735
chunks.append(chunk)
3740
raise errors.OptionExpansionLoop(string, _refs)
3742
value = self._expand_option(name, env, _refs)
3744
raise errors.ExpandingUnknownOption(name, string)
3745
chunks.append(value)
3747
result = ''.join(chunks)
3750
def _expand_option(self, name, env, _refs):
3751
if env is not None and name in env:
3752
# Special case, values provided in env takes precedence over
3756
value = self.get(name, expand=False, convert=False)
3757
value = self._expand_options_in_string(value, env, _refs)
3760
def _get_mutable_section(self):
3761
"""Get the MutableSection for the Stack.
3763
This is where we guarantee that the mutable section is lazily loaded:
3764
this means we won't load the corresponding store before setting a value
3765
or deleting an option. In practice the store will often be loaded but
3766
this helps catching some programming errors.
3769
section = store.get_mutable_section(self.mutable_section_id)
3770
return store, section
3772
def set(self, name, value):
3773
"""Set a new value for the option."""
3774
store, section = self._get_mutable_section()
3775
section.set(name, store.quote(value))
3776
for hook in ConfigHooks['set']:
3777
hook(self, name, value)
3779
def remove(self, name):
3780
"""Remove an existing option."""
3781
_, section = self._get_mutable_section()
3782
section.remove(name)
3783
for hook in ConfigHooks['remove']:
3787
# Mostly for debugging use
3788
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3790
def _get_overrides(self):
3791
# Hack around library_state.initialize never called
3792
if bzrlib.global_state is not None:
3793
return bzrlib.global_state.cmdline_overrides.get_sections()
3797
class MemoryStack(Stack):
3798
"""A configuration stack defined from a string.
3800
This is mainly intended for tests and requires no disk resources.
3803
def __init__(self, content=None):
3804
"""Create an in-memory stack from a given content.
3806
It uses a single store based on configobj and support reading and
3809
:param content: The initial content of the store. If None, the store is
3810
not loaded and ``_load_from_string`` can and should be used if
3813
store = IniFileStore()
3814
if content is not None:
3815
store._load_from_string(content)
3816
super(MemoryStack, self).__init__(
3817
[store.get_sections], store)
3820
class _CompatibleStack(Stack):
3821
"""Place holder for compatibility with previous design.
3823
This is intended to ease the transition from the Config-based design to the
3824
Stack-based design and should not be used nor relied upon by plugins.
3826
One assumption made here is that the daughter classes will all use Stores
3827
derived from LockableIniFileStore).
3829
It implements set() and remove () by re-loading the store before applying
3830
the modification and saving it.
3832
The long term plan being to implement a single write by store to save
3833
all modifications, this class should not be used in the interim.
3836
def set(self, name, value):
3839
super(_CompatibleStack, self).set(name, value)
3840
# Force a write to persistent storage
3843
def remove(self, name):
3846
super(_CompatibleStack, self).remove(name)
3847
# Force a write to persistent storage
3851
class GlobalStack(_CompatibleStack):
3852
"""Global options only stack.
3854
The following sections are queried:
3856
* command-line overrides,
3858
* the 'DEFAULT' section in bazaar.conf
3860
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3865
gstore = GlobalStore()
3866
super(GlobalStack, self).__init__(
3867
[self._get_overrides,
3868
NameMatcher(gstore, 'DEFAULT').get_sections],
3869
gstore, mutable_section_id='DEFAULT')
3872
class LocationStack(_CompatibleStack):
3873
"""Per-location options falling back to global options stack.
3876
The following sections are queried:
3878
* command-line overrides,
3880
* the sections matching ``location`` in ``locations.conf``, the order being
3881
defined by the number of path components in the section glob, higher
3882
numbers first (from most specific section to most generic).
3884
* the 'DEFAULT' section in bazaar.conf
3886
This stack will use the ``location`` section in locations.conf as its
3890
def __init__(self, location):
3891
"""Make a new stack for a location and global configuration.
3893
:param location: A URL prefix to """
3894
lstore = LocationStore()
3895
if location.startswith('file://'):
3896
location = urlutils.local_path_from_url(location)
3897
gstore = GlobalStore()
3898
super(LocationStack, self).__init__(
3899
[self._get_overrides,
3900
LocationMatcher(lstore, location).get_sections,
3901
NameMatcher(gstore, 'DEFAULT').get_sections],
3902
lstore, mutable_section_id=location)
3905
class BranchStack(Stack):
3906
"""Per-location options falling back to branch then global options stack.
3908
The following sections are queried:
3910
* command-line overrides,
3912
* the sections matching ``location`` in ``locations.conf``, the order being
3913
defined by the number of path components in the section glob, higher
3914
numbers first (from most specific section to most generic),
3916
* the no-name section in branch.conf,
3918
* the ``DEFAULT`` section in ``bazaar.conf``.
3920
This stack will use the no-name section in ``branch.conf`` as its
3924
def __init__(self, branch):
3925
lstore = LocationStore()
3926
bstore = branch._get_config_store()
3927
gstore = GlobalStore()
3928
super(BranchStack, self).__init__(
3929
[self._get_overrides,
3930
LocationMatcher(lstore, branch.base).get_sections,
3931
NameMatcher(bstore, None).get_sections,
3932
NameMatcher(gstore, 'DEFAULT').get_sections],
3934
self.branch = branch
3936
def lock_write(self, token=None):
3937
return self.branch.lock_write(token)
3940
return self.branch.unlock()
3943
def set(self, name, value):
3944
super(BranchStack, self).set(name, value)
3945
# Unlocking the branch will trigger a store.save_changes() so the last
3946
# unlock saves all the changes.
3949
def remove(self, name):
3950
super(BranchStack, self).remove(name)
3951
# Unlocking the branch will trigger a store.save_changes() so the last
3952
# unlock saves all the changes.
3955
class RemoteControlStack(_CompatibleStack):
3956
"""Remote control-only options stack."""
3958
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3959
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3960
# control.conf and is used only for stack options.
3962
def __init__(self, bzrdir):
3963
cstore = bzrdir._get_config_store()
3964
super(RemoteControlStack, self).__init__(
3965
[NameMatcher(cstore, None).get_sections],
3967
self.bzrdir = bzrdir
3970
class BranchOnlyStack(Stack):
3971
"""Branch-only options stack."""
3973
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3974
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3975
# -- vila 2011-12-16
3977
def __init__(self, branch):
3978
bstore = branch._get_config_store()
3979
super(BranchOnlyStack, self).__init__(
3980
[NameMatcher(bstore, None).get_sections],
3982
self.branch = branch
3984
def lock_write(self, token=None):
3985
return self.branch.lock_write(token)
3988
return self.branch.unlock()
3991
def set(self, name, value):
3992
super(BranchOnlyStack, self).set(name, value)
3993
# Force a write to persistent storage
3994
self.store.save_changes()
3997
def remove(self, name):
3998
super(BranchOnlyStack, self).remove(name)
3999
# Force a write to persistent storage
4000
self.store.save_changes()
4003
class cmd_config(commands.Command):
4004
__doc__ = """Display, set or remove a configuration option.
4006
Display the active value for a given option.
4008
If --all is specified, NAME is interpreted as a regular expression and all
4009
matching options are displayed mentioning their scope. The active value
4010
that bzr will take into account is the first one displayed for each option.
4012
If no NAME is given, --all .* is implied.
4014
Setting a value is achieved by using name=value without spaces. The value
4015
is set in the most relevant scope and can be checked by displaying the
4019
takes_args = ['name?']
4023
# FIXME: This should be a registry option so that plugins can register
4024
# their own config files (or not) and will also address
4025
# http://pad.lv/788991 -- vila 20101115
4026
commands.Option('scope', help='Reduce the scope to the specified'
4027
' configuration file.',
4029
commands.Option('all',
4030
help='Display all the defined values for the matching options.',
4032
commands.Option('remove', help='Remove the option from'
4033
' the configuration file.'),
4036
_see_also = ['configuration']
4038
@commands.display_command
4039
def run(self, name=None, all=False, directory=None, scope=None,
4041
if directory is None:
4043
directory = urlutils.normalize_url(directory)
4045
raise errors.BzrError(
4046
'--all and --remove are mutually exclusive.')
4048
# Delete the option in the given scope
4049
self._remove_config_option(name, directory, scope)
4051
# Defaults to all options
4052
self._show_matching_options('.*', directory, scope)
4055
name, value = name.split('=', 1)
4057
# Display the option(s) value(s)
4059
self._show_matching_options(name, directory, scope)
4061
self._show_value(name, directory, scope)
4064
raise errors.BzrError(
4065
'Only one option can be set.')
4066
# Set the option value
4067
self._set_config_option(name, value, directory, scope)
4069
def _get_stack(self, directory, scope=None, write_access=False):
4070
"""Get the configuration stack specified by ``directory`` and ``scope``.
4072
:param directory: Where the configurations are derived from.
4074
:param scope: A specific config to start from.
4076
:param write_access: Whether a write access to the stack will be
4079
# FIXME: scope should allow access to plugin-specific stacks (even
4080
# reduced to the plugin-specific store), related to
4081
# http://pad.lv/788991 -- vila 2011-11-15
4082
if scope is not None:
4083
if scope == 'bazaar':
4084
return GlobalStack()
4085
elif scope == 'locations':
4086
return LocationStack(directory)
4087
elif scope == 'branch':
4089
controldir.ControlDir.open_containing_tree_or_branch(
4092
self.add_cleanup(br.lock_write().unlock)
4093
return br.get_config_stack()
4094
raise errors.NoSuchConfig(scope)
4098
controldir.ControlDir.open_containing_tree_or_branch(
4101
self.add_cleanup(br.lock_write().unlock)
4102
return br.get_config_stack()
4103
except errors.NotBranchError:
4104
return LocationStack(directory)
4106
def _quote_multiline(self, value):
4108
value = '"""' + value + '"""'
4111
def _show_value(self, name, directory, scope):
4112
conf = self._get_stack(directory, scope)
4113
value = conf.get(name, expand=True, convert=False)
4114
if value is not None:
4115
# Quote the value appropriately
4116
value = self._quote_multiline(value)
4117
self.outf.write('%s\n' % (value,))
4119
raise errors.NoSuchConfigOption(name)
4121
def _show_matching_options(self, name, directory, scope):
4122
name = lazy_regex.lazy_compile(name)
4123
# We want any error in the regexp to be raised *now* so we need to
4124
# avoid the delay introduced by the lazy regexp. But, we still do
4125
# want the nicer errors raised by lazy_regex.
4126
name._compile_and_collapse()
4129
conf = self._get_stack(directory, scope)
4130
for store, section in conf.iter_sections():
4131
for oname in section.iter_option_names():
4132
if name.search(oname):
4133
if cur_store_id != store.id:
4134
# Explain where the options are defined
4135
self.outf.write('%s:\n' % (store.id,))
4136
cur_store_id = store.id
4138
if (section.id is not None and cur_section != section.id):
4139
# Display the section id as it appears in the store
4140
# (None doesn't appear by definition)
4141
self.outf.write(' [%s]\n' % (section.id,))
4142
cur_section = section.id
4143
value = section.get(oname, expand=False)
4144
# Quote the value appropriately
4145
value = self._quote_multiline(value)
4146
self.outf.write(' %s = %s\n' % (oname, value))
4148
def _set_config_option(self, name, value, directory, scope):
4149
conf = self._get_stack(directory, scope, write_access=True)
4150
conf.set(name, value)
4152
def _remove_config_option(self, name, directory, scope):
4154
raise errors.BzrCommandError(
4155
'--remove expects an option to remove.')
4156
conf = self._get_stack(directory, scope, write_access=True)
4160
raise errors.NoSuchConfigOption(name)
4165
# We need adapters that can build a Store or a Stack in a test context. Test
4166
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4167
# themselves. The builder will receive a test instance and should return a
4168
# ready-to-use store or stack. Plugins that define new store/stacks can also
4169
# register themselves here to be tested against the tests defined in
4170
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4171
# for the same test.
4173
# The registered object should be a callable receiving a test instance
4174
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4176
test_store_builder_registry = registry.Registry()
4178
# The registered object should be a callable receiving a test instance
4179
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4181
test_stack_builder_registry = registry.Registry()