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 as 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 (by section id). We use a dict here
2986
# so the dirty sections can be shared by multiple callers.
2987
self.dirty_sections = {}
2989
def is_loaded(self):
2990
"""Returns True if the Store has been loaded.
2992
This is used to implement lazy loading and ensure the persistent
2993
storage is queried only when needed.
2995
raise NotImplementedError(self.is_loaded)
2998
"""Loads the Store from persistent storage."""
2999
raise NotImplementedError(self.load)
3001
def _load_from_string(self, bytes):
3002
"""Create a store from a string in configobj syntax.
3004
:param bytes: A string representing the file content.
3006
raise NotImplementedError(self._load_from_string)
3009
"""Unloads the Store.
3011
This should make is_loaded() return False. This is used when the caller
3012
knows that the persistent storage has changed or may have change since
3015
raise NotImplementedError(self.unload)
3017
def quote(self, value):
3018
"""Quote a configuration option value for storing purposes.
3020
This allows Stacks to present values as they will be stored.
3024
def unquote(self, value):
3025
"""Unquote a configuration option value into unicode.
3027
The received value is quoted as stored.
3032
"""Saves the Store to persistent storage."""
3033
raise NotImplementedError(self.save)
3035
def _need_saving(self):
3036
for s in self.dirty_sections.values():
3038
# At least one dirty section contains a modification
3042
def apply_changes(self, dirty_sections):
3043
"""Apply changes from dirty sections while checking for coherency.
3045
The Store content is discarded and reloaded from persistent storage to
3046
acquire up-to-date values.
3048
Dirty sections are MutableSection which kept track of the value they
3049
are expected to update.
3051
# We need an up-to-date version from the persistent storage, unload the
3052
# store. The reload will occur when needed (triggered by the first
3053
# get_mutable_section() call below.
3055
# Apply the changes from the preserved dirty sections
3056
for section_id, dirty in dirty_sections.iteritems():
3057
clean = self.get_mutable_section(section_id)
3058
clean.apply_changes(dirty, self)
3059
# Everything is clean now
3060
self.dirty_sections = {}
3062
def save_changes(self):
3063
"""Saves the Store to persistent storage if changes occurred.
3065
Apply the changes recorded in the mutable sections to a store content
3066
refreshed from persistent storage.
3068
raise NotImplementedError(self.save_changes)
3070
def external_url(self):
3071
raise NotImplementedError(self.external_url)
3073
def get_sections(self):
3074
"""Returns an ordered iterable of existing sections.
3076
:returns: An iterable of (store, section).
3078
raise NotImplementedError(self.get_sections)
3080
def get_mutable_section(self, section_id=None):
3081
"""Returns the specified mutable section.
3083
:param section_id: The section identifier
3085
raise NotImplementedError(self.get_mutable_section)
3088
# Mostly for debugging use
3089
return "<config.%s(%s)>" % (self.__class__.__name__,
3090
self.external_url())
3093
class CommandLineStore(Store):
3094
"A store to carry command line overrides for the config options."""
3096
def __init__(self, opts=None):
3097
super(CommandLineStore, self).__init__()
3104
# The dict should be cleared but not replaced so it can be shared.
3105
self.options.clear()
3107
def _from_cmdline(self, overrides):
3108
# Reset before accepting new definitions
3110
for over in overrides:
3112
name, value = over.split('=', 1)
3114
raise errors.BzrCommandError(
3115
gettext("Invalid '%s', should be of the form 'name=value'")
3117
self.options[name] = value
3119
def external_url(self):
3120
# Not an url but it makes debugging easier and is never needed
3124
def get_sections(self):
3125
yield self, self.readonly_section_class(None, self.options)
3128
class IniFileStore(Store):
3129
"""A config Store using ConfigObj for storage.
3131
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3132
serialize/deserialize the config file.
3136
"""A config Store using ConfigObj for storage.
3138
super(IniFileStore, self).__init__()
3139
self._config_obj = None
3141
def is_loaded(self):
3142
return self._config_obj != None
3145
self._config_obj = None
3146
self.dirty_sections = {}
3148
def _load_content(self):
3149
"""Load the config file bytes.
3151
This should be provided by subclasses
3153
:return: Byte string
3155
raise NotImplementedError(self._load_content)
3157
def _save_content(self, content):
3158
"""Save the config file bytes.
3160
This should be provided by subclasses
3162
:param content: Config file bytes to write
3164
raise NotImplementedError(self._save_content)
3167
"""Load the store from the associated file."""
3168
if self.is_loaded():
3170
content = self._load_content()
3171
self._load_from_string(content)
3172
for hook in ConfigHooks['load']:
3175
def _load_from_string(self, bytes):
3176
"""Create a config store from a string.
3178
:param bytes: A string representing the file content.
3180
if self.is_loaded():
3181
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3182
co_input = StringIO(bytes)
3184
# The config files are always stored utf8-encoded
3185
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3187
except configobj.ConfigObjError, e:
3188
self._config_obj = None
3189
raise errors.ParseConfigError(e.errors, self.external_url())
3190
except UnicodeDecodeError:
3191
raise errors.ConfigContentError(self.external_url())
3193
def save_changes(self):
3194
if not self.is_loaded():
3197
if not self._need_saving():
3199
# Preserve the current version
3200
dirty_sections = dict(self.dirty_sections.items())
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 in self.dirty_sections:
3242
# We already created a mutable section for this id
3243
return self.dirty_sections[section_id]
3244
if section_id is None:
3245
section = self._config_obj
3247
section = self._config_obj.setdefault(section_id, {})
3248
mutable_section = self.mutable_section_class(section_id, section)
3249
# All mutable sections can become dirty
3250
self.dirty_sections[section_id] = mutable_section
3251
return mutable_section
3253
def quote(self, value):
3255
# configobj conflates automagical list values and quoting
3256
self._config_obj.list_values = True
3257
return self._config_obj._quote(value)
3259
self._config_obj.list_values = False
3261
def unquote(self, value):
3262
if value and isinstance(value, basestring):
3263
# _unquote doesn't handle None nor empty strings nor anything that
3264
# is not a string, really.
3265
value = self._config_obj._unquote(value)
3268
def external_url(self):
3269
# Since an IniFileStore can be used without a file (at least in tests),
3270
# it's better to provide something than raising a NotImplementedError.
3271
# All daughter classes are supposed to provide an implementation
3273
return 'In-Process Store, no URL'
3275
class TransportIniFileStore(IniFileStore):
3276
"""IniFileStore that loads files from a transport.
3278
:ivar transport: The transport object where the config file is located.
3280
:ivar file_name: The config file basename in the transport directory.
3283
def __init__(self, transport, file_name):
3284
"""A Store using a ini file on a Transport
3286
:param transport: The transport object where the config file is located.
3287
:param file_name: The config file basename in the transport directory.
3289
super(TransportIniFileStore, self).__init__()
3290
self.transport = transport
3291
self.file_name = file_name
3293
def _load_content(self):
3295
return self.transport.get_bytes(self.file_name)
3296
except errors.PermissionDenied:
3297
trace.warning("Permission denied while trying to load "
3298
"configuration store %s.", self.external_url())
3301
def _save_content(self, content):
3302
self.transport.put_bytes(self.file_name, content)
3304
def external_url(self):
3305
# FIXME: external_url should really accepts an optional relpath
3306
# parameter (bug #750169) :-/ -- vila 2011-04-04
3307
# The following will do in the interim but maybe we don't want to
3308
# expose a path here but rather a config ID and its associated
3309
# object </hand wawe>.
3310
return urlutils.join(self.transport.external_url(), self.file_name)
3313
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3314
# unlockable stores for use with objects that can already ensure the locking
3315
# (think branches). If different stores (not based on ConfigObj) are created,
3316
# they may face the same issue.
3319
class LockableIniFileStore(TransportIniFileStore):
3320
"""A ConfigObjStore using locks on save to ensure store integrity."""
3322
def __init__(self, transport, file_name, lock_dir_name=None):
3323
"""A config Store using ConfigObj for storage.
3325
:param transport: The transport object where the config file is located.
3327
:param file_name: The config file basename in the transport directory.
3329
if lock_dir_name is None:
3330
lock_dir_name = 'lock'
3331
self.lock_dir_name = lock_dir_name
3332
super(LockableIniFileStore, self).__init__(transport, file_name)
3333
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3335
def lock_write(self, token=None):
3336
"""Takes a write lock in the directory containing the config file.
3338
If the directory doesn't exist it is created.
3340
# FIXME: This doesn't check the ownership of the created directories as
3341
# ensure_config_dir_exists does. It should if the transport is local
3342
# -- vila 2011-04-06
3343
self.transport.create_prefix()
3344
return self._lock.lock_write(token)
3349
def break_lock(self):
3350
self._lock.break_lock()
3354
# We need to be able to override the undecorated implementation
3355
self.save_without_locking()
3357
def save_without_locking(self):
3358
super(LockableIniFileStore, self).save()
3361
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3362
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3363
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3365
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3366
# functions or a registry will make it easier and clearer for tests, focusing
3367
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3368
# on a poolie's remark)
3369
class GlobalStore(LockableIniFileStore):
3371
def __init__(self, possible_transports=None):
3372
t = transport.get_transport_from_path(
3373
config_dir(), possible_transports=possible_transports)
3374
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3378
class LocationStore(LockableIniFileStore):
3380
def __init__(self, possible_transports=None):
3381
t = transport.get_transport_from_path(
3382
config_dir(), possible_transports=possible_transports)
3383
super(LocationStore, self).__init__(t, 'locations.conf')
3384
self.id = 'locations'
3387
class BranchStore(TransportIniFileStore):
3389
def __init__(self, branch):
3390
super(BranchStore, self).__init__(branch.control_transport,
3392
self.branch = branch
3396
class ControlStore(LockableIniFileStore):
3398
def __init__(self, bzrdir):
3399
super(ControlStore, self).__init__(bzrdir.transport,
3401
lock_dir_name='branch_lock')
3405
class SectionMatcher(object):
3406
"""Select sections into a given Store.
3408
This is intended to be used to postpone getting an iterable of sections
3412
def __init__(self, store):
3415
def get_sections(self):
3416
# This is where we require loading the store so we can see all defined
3418
sections = self.store.get_sections()
3419
# Walk the revisions in the order provided
3420
for store, s in sections:
3424
def match(self, section):
3425
"""Does the proposed section match.
3427
:param section: A Section object.
3429
:returns: True if the section matches, False otherwise.
3431
raise NotImplementedError(self.match)
3434
class NameMatcher(SectionMatcher):
3436
def __init__(self, store, section_id):
3437
super(NameMatcher, self).__init__(store)
3438
self.section_id = section_id
3440
def match(self, section):
3441
return section.id == self.section_id
3444
class LocationSection(Section):
3446
def __init__(self, section, extra_path):
3447
super(LocationSection, self).__init__(section.id, section.options)
3448
self.extra_path = extra_path
3449
self.locals = {'relpath': extra_path,
3450
'basename': urlutils.basename(extra_path)}
3452
def get(self, name, default=None, expand=True):
3453
value = super(LocationSection, self).get(name, default)
3454
if value is not None and expand:
3455
policy_name = self.get(name + ':policy', None)
3456
policy = _policy_value.get(policy_name, POLICY_NONE)
3457
if policy == POLICY_APPENDPATH:
3458
value = urlutils.join(value, self.extra_path)
3459
# expand section local options right now (since POLICY_APPENDPATH
3460
# will never add options references, it's ok to expand after it).
3462
for is_ref, chunk in iter_option_refs(value):
3464
chunks.append(chunk)
3467
if ref in self.locals:
3468
chunks.append(self.locals[ref])
3470
chunks.append(chunk)
3471
value = ''.join(chunks)
3475
class StartingPathMatcher(SectionMatcher):
3476
"""Select sections for a given location respecting the Store order."""
3478
# FIXME: Both local paths and urls can be used for section names as well as
3479
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3480
# inherited the fuzziness from the previous ``LocationConfig``
3481
# implementation. We probably need to revisit which encoding is allowed for
3482
# both ``location`` and section names and how we normalize
3483
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3484
# related too. -- vila 2012-01-04
3486
def __init__(self, store, location):
3487
super(StartingPathMatcher, self).__init__(store)
3488
if location.startswith('file://'):
3489
location = urlutils.local_path_from_url(location)
3490
self.location = location
3492
def get_sections(self):
3493
"""Get all sections matching ``location`` in the store.
3495
The most generic sections are described first in the store, then more
3496
specific ones can be provided for reduced scopes.
3498
The returned section are therefore returned in the reversed order so
3499
the most specific ones can be found first.
3501
location_parts = self.location.rstrip('/').split('/')
3504
# Later sections are more specific, they should be returned first
3505
for _, section in reversed(list(store.get_sections())):
3506
if section.id is None:
3507
# The no-name section is always included if present
3508
yield store, LocationSection(section, self.location)
3510
section_path = section.id
3511
if section_path.startswith('file://'):
3512
# the location is already a local path or URL, convert the
3513
# section id to the same format
3514
section_path = urlutils.local_path_from_url(section_path)
3515
if (self.location.startswith(section_path)
3516
or fnmatch.fnmatch(self.location, section_path)):
3517
section_parts = section_path.rstrip('/').split('/')
3518
extra_path = '/'.join(location_parts[len(section_parts):])
3519
yield store, LocationSection(section, extra_path)
3522
class LocationMatcher(SectionMatcher):
3524
def __init__(self, store, location):
3525
super(LocationMatcher, self).__init__(store)
3526
if location.startswith('file://'):
3527
location = urlutils.local_path_from_url(location)
3528
self.location = location
3530
def _get_matching_sections(self):
3531
"""Get all sections matching ``location``."""
3532
# We slightly diverge from LocalConfig here by allowing the no-name
3533
# section as the most generic one and the lower priority.
3534
no_name_section = None
3536
# Filter out the no_name_section so _iter_for_location_by_parts can be
3537
# used (it assumes all sections have a name).
3538
for _, section in self.store.get_sections():
3539
if section.id is None:
3540
no_name_section = section
3542
all_sections.append(section)
3543
# Unfortunately _iter_for_location_by_parts deals with section names so
3544
# we have to resync.
3545
filtered_sections = _iter_for_location_by_parts(
3546
[s.id for s in all_sections], self.location)
3547
iter_all_sections = iter(all_sections)
3548
matching_sections = []
3549
if no_name_section is not None:
3550
matching_sections.append(
3551
(0, LocationSection(no_name_section, self.location)))
3552
for section_id, extra_path, length in filtered_sections:
3553
# a section id is unique for a given store so it's safe to take the
3554
# first matching section while iterating. Also, all filtered
3555
# sections are part of 'all_sections' and will always be found
3558
section = iter_all_sections.next()
3559
if section_id == section.id:
3560
matching_sections.append(
3561
(length, LocationSection(section, extra_path)))
3563
return matching_sections
3565
def get_sections(self):
3566
# Override the default implementation as we want to change the order
3567
matching_sections = self._get_matching_sections()
3568
# We want the longest (aka more specific) locations first
3569
sections = sorted(matching_sections,
3570
key=lambda (length, section): (length, section.id),
3572
# Sections mentioning 'ignore_parents' restrict the selection
3573
for _, section in sections:
3574
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3575
ignore = section.get('ignore_parents', None)
3576
if ignore is not None:
3577
ignore = ui.bool_from_string(ignore)
3580
# Finally, we have a valid section
3581
yield self.store, section
3584
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3585
"""Describes an expandable option reference.
3587
We want to match the most embedded reference first.
3589
I.e. for '{{foo}}' we will get '{foo}',
3590
for '{bar{baz}}' we will get '{baz}'
3593
def iter_option_refs(string):
3594
# Split isolate refs so every other chunk is a ref
3596
for chunk in _option_ref_re.split(string):
3601
class Stack(object):
3602
"""A stack of configurations where an option can be defined"""
3604
def __init__(self, sections_def, store=None, mutable_section_id=None):
3605
"""Creates a stack of sections with an optional store for changes.
3607
:param sections_def: A list of Section or callables that returns an
3608
iterable of Section. This defines the Sections for the Stack and
3609
can be called repeatedly if needed.
3611
:param store: The optional Store where modifications will be
3612
recorded. If none is specified, no modifications can be done.
3614
:param mutable_section_id: The id of the MutableSection where changes
3615
are recorded. This requires the ``store`` parameter to be
3618
self.sections_def = sections_def
3620
self.mutable_section_id = mutable_section_id
3622
def iter_sections(self):
3623
"""Iterate all the defined sections."""
3624
# Ensuring lazy loading is achieved by delaying section matching (which
3625
# implies querying the persistent storage) until it can't be avoided
3626
# anymore by using callables to describe (possibly empty) section
3628
for sections in self.sections_def:
3629
for store, section in sections():
3630
yield store, section
3632
def get(self, name, expand=True, convert=True):
3633
"""Return the *first* option value found in the sections.
3635
This is where we guarantee that sections coming from Store are loaded
3636
lazily: the loading is delayed until we need to either check that an
3637
option exists or get its value, which in turn may require to discover
3638
in which sections it can be defined. Both of these (section and option
3639
existence) require loading the store (even partially).
3641
:param name: The queried option.
3643
:param expand: Whether options references should be expanded.
3645
:param convert: Whether the option value should be converted from
3646
unicode (do nothing for non-registered options).
3648
:returns: The value of the option.
3650
# FIXME: No caching of options nor sections yet -- vila 20110503
3652
found_store = None # Where the option value has been found
3653
# If the option is registered, it may provide additional info about
3656
opt = option_registry.get(name)
3661
def expand_and_convert(val):
3662
# This may need to be called in different contexts if the value is
3663
# None or ends up being None during expansion or conversion.
3666
if isinstance(val, basestring):
3667
val = self._expand_options_in_string(val)
3669
trace.warning('Cannot expand "%s":'
3670
' %s does not support option expansion'
3671
% (name, type(val)))
3673
val = found_store.unquote(val)
3675
val = opt.convert_from_unicode(found_store, val)
3678
# First of all, check if the environment can override the configuration
3680
if opt is not None and opt.override_from_env:
3681
value = opt.get_override()
3682
value = expand_and_convert(value)
3684
for store, section in self.iter_sections():
3685
value = section.get(name)
3686
if value is not None:
3689
value = expand_and_convert(value)
3690
if opt is not None and value is None:
3691
# If the option is registered, it may provide a default value
3692
value = opt.get_default()
3693
value = expand_and_convert(value)
3694
for hook in ConfigHooks['get']:
3695
hook(self, name, value)
3698
def expand_options(self, string, env=None):
3699
"""Expand option references in the string in the configuration context.
3701
:param string: The string containing option(s) to expand.
3703
:param env: An option dict defining additional configuration options or
3704
overriding existing ones.
3706
:returns: The expanded string.
3708
return self._expand_options_in_string(string, env)
3710
def _expand_options_in_string(self, string, env=None, _refs=None):
3711
"""Expand options in the string in the configuration context.
3713
:param string: The string to be expanded.
3715
:param env: An option dict defining additional configuration options or
3716
overriding existing ones.
3718
:param _refs: Private list (FIFO) containing the options being expanded
3721
:returns: The expanded string.
3724
# Not much to expand there
3727
# What references are currently resolved (to detect loops)
3730
# We need to iterate until no more refs appear ({{foo}} will need two
3731
# iterations for example).
3736
for is_ref, chunk in iter_option_refs(result):
3738
chunks.append(chunk)
3743
raise errors.OptionExpansionLoop(string, _refs)
3745
value = self._expand_option(name, env, _refs)
3747
raise errors.ExpandingUnknownOption(name, string)
3748
chunks.append(value)
3750
result = ''.join(chunks)
3753
def _expand_option(self, name, env, _refs):
3754
if env is not None and name in env:
3755
# Special case, values provided in env takes precedence over
3759
value = self.get(name, expand=False, convert=False)
3760
value = self._expand_options_in_string(value, env, _refs)
3763
def _get_mutable_section(self):
3764
"""Get the MutableSection for the Stack.
3766
This is where we guarantee that the mutable section is lazily loaded:
3767
this means we won't load the corresponding store before setting a value
3768
or deleting an option. In practice the store will often be loaded but
3769
this helps catching some programming errors.
3772
section = store.get_mutable_section(self.mutable_section_id)
3773
return store, section
3775
def set(self, name, value):
3776
"""Set a new value for the option."""
3777
store, section = self._get_mutable_section()
3778
section.set(name, store.quote(value))
3779
for hook in ConfigHooks['set']:
3780
hook(self, name, value)
3782
def remove(self, name):
3783
"""Remove an existing option."""
3784
_, section = self._get_mutable_section()
3785
section.remove(name)
3786
for hook in ConfigHooks['remove']:
3790
# Mostly for debugging use
3791
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3793
def _get_overrides(self):
3794
# Hack around library_state.initialize never called
3795
if bzrlib.global_state is not None:
3796
return bzrlib.global_state.cmdline_overrides.get_sections()
3800
class MemoryStack(Stack):
3801
"""A configuration stack defined from a string.
3803
This is mainly intended for tests and requires no disk resources.
3806
def __init__(self, content=None):
3807
"""Create an in-memory stack from a given content.
3809
It uses a single store based on configobj and support reading and
3812
:param content: The initial content of the store. If None, the store is
3813
not loaded and ``_load_from_string`` can and should be used if
3816
store = IniFileStore()
3817
if content is not None:
3818
store._load_from_string(content)
3819
super(MemoryStack, self).__init__(
3820
[store.get_sections], store)
3823
class _CompatibleStack(Stack):
3824
"""Place holder for compatibility with previous design.
3826
This is intended to ease the transition from the Config-based design to the
3827
Stack-based design and should not be used nor relied upon by plugins.
3829
One assumption made here is that the daughter classes will all use Stores
3830
derived from LockableIniFileStore).
3832
It implements set() and remove () by re-loading the store before applying
3833
the modification and saving it.
3835
The long term plan being to implement a single write by store to save
3836
all modifications, this class should not be used in the interim.
3839
def set(self, name, value):
3842
super(_CompatibleStack, self).set(name, value)
3843
# Force a write to persistent storage
3846
def remove(self, name):
3849
super(_CompatibleStack, self).remove(name)
3850
# Force a write to persistent storage
3854
class GlobalStack(_CompatibleStack):
3855
"""Global options only stack.
3857
The following sections are queried:
3859
* command-line overrides,
3861
* the 'DEFAULT' section in bazaar.conf
3863
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3868
gstore = GlobalStore()
3869
super(GlobalStack, self).__init__(
3870
[self._get_overrides,
3871
NameMatcher(gstore, 'DEFAULT').get_sections],
3872
gstore, mutable_section_id='DEFAULT')
3875
class LocationStack(_CompatibleStack):
3876
"""Per-location options falling back to global options stack.
3879
The following sections are queried:
3881
* command-line overrides,
3883
* the sections matching ``location`` in ``locations.conf``, the order being
3884
defined by the number of path components in the section glob, higher
3885
numbers first (from most specific section to most generic).
3887
* the 'DEFAULT' section in bazaar.conf
3889
This stack will use the ``location`` section in locations.conf as its
3893
def __init__(self, location):
3894
"""Make a new stack for a location and global configuration.
3896
:param location: A URL prefix to """
3897
lstore = LocationStore()
3898
if location.startswith('file://'):
3899
location = urlutils.local_path_from_url(location)
3900
gstore = GlobalStore()
3901
super(LocationStack, self).__init__(
3902
[self._get_overrides,
3903
LocationMatcher(lstore, location).get_sections,
3904
NameMatcher(gstore, 'DEFAULT').get_sections],
3905
lstore, mutable_section_id=location)
3908
class BranchStack(Stack):
3909
"""Per-location options falling back to branch then global options stack.
3911
The following sections are queried:
3913
* command-line overrides,
3915
* the sections matching ``location`` in ``locations.conf``, the order being
3916
defined by the number of path components in the section glob, higher
3917
numbers first (from most specific section to most generic),
3919
* the no-name section in branch.conf,
3921
* the ``DEFAULT`` section in ``bazaar.conf``.
3923
This stack will use the no-name section in ``branch.conf`` as its
3927
def __init__(self, branch):
3928
lstore = LocationStore()
3929
bstore = branch._get_config_store()
3930
gstore = GlobalStore()
3931
super(BranchStack, self).__init__(
3932
[self._get_overrides,
3933
LocationMatcher(lstore, branch.base).get_sections,
3934
NameMatcher(bstore, None).get_sections,
3935
NameMatcher(gstore, 'DEFAULT').get_sections],
3937
self.branch = branch
3939
def lock_write(self, token=None):
3940
return self.branch.lock_write(token)
3943
return self.branch.unlock()
3946
def set(self, name, value):
3947
super(BranchStack, self).set(name, value)
3948
# Unlocking the branch will trigger a store.save_changes() so the last
3949
# unlock saves all the changes.
3952
def remove(self, name):
3953
super(BranchStack, self).remove(name)
3954
# Unlocking the branch will trigger a store.save_changes() so the last
3955
# unlock saves all the changes.
3958
class RemoteControlStack(_CompatibleStack):
3959
"""Remote control-only options stack."""
3961
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3962
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3963
# control.conf and is used only for stack options.
3965
def __init__(self, bzrdir):
3966
cstore = bzrdir._get_config_store()
3967
super(RemoteControlStack, self).__init__(
3968
[NameMatcher(cstore, None).get_sections],
3970
self.bzrdir = bzrdir
3973
class BranchOnlyStack(Stack):
3974
"""Branch-only options stack."""
3976
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3977
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3978
# -- vila 2011-12-16
3980
def __init__(self, branch):
3981
bstore = branch._get_config_store()
3982
super(BranchOnlyStack, self).__init__(
3983
[NameMatcher(bstore, None).get_sections],
3985
self.branch = branch
3987
def lock_write(self, token=None):
3988
return self.branch.lock_write(token)
3991
return self.branch.unlock()
3994
def set(self, name, value):
3995
super(BranchOnlyStack, self).set(name, value)
3996
# Force a write to persistent storage
3997
self.store.save_changes()
4000
def remove(self, name):
4001
super(BranchOnlyStack, self).remove(name)
4002
# Force a write to persistent storage
4003
self.store.save_changes()
4006
class cmd_config(commands.Command):
4007
__doc__ = """Display, set or remove a configuration option.
4009
Display the active value for a given option.
4011
If --all is specified, NAME is interpreted as a regular expression and all
4012
matching options are displayed mentioning their scope. The active value
4013
that bzr will take into account is the first one displayed for each option.
4015
If no NAME is given, --all .* is implied.
4017
Setting a value is achieved by using name=value without spaces. The value
4018
is set in the most relevant scope and can be checked by displaying the
4022
takes_args = ['name?']
4026
# FIXME: This should be a registry option so that plugins can register
4027
# their own config files (or not) and will also address
4028
# http://pad.lv/788991 -- vila 20101115
4029
commands.Option('scope', help='Reduce the scope to the specified'
4030
' configuration file.',
4032
commands.Option('all',
4033
help='Display all the defined values for the matching options.',
4035
commands.Option('remove', help='Remove the option from'
4036
' the configuration file.'),
4039
_see_also = ['configuration']
4041
@commands.display_command
4042
def run(self, name=None, all=False, directory=None, scope=None,
4044
if directory is None:
4046
directory = urlutils.normalize_url(directory)
4048
raise errors.BzrError(
4049
'--all and --remove are mutually exclusive.')
4051
# Delete the option in the given scope
4052
self._remove_config_option(name, directory, scope)
4054
# Defaults to all options
4055
self._show_matching_options('.*', directory, scope)
4058
name, value = name.split('=', 1)
4060
# Display the option(s) value(s)
4062
self._show_matching_options(name, directory, scope)
4064
self._show_value(name, directory, scope)
4067
raise errors.BzrError(
4068
'Only one option can be set.')
4069
# Set the option value
4070
self._set_config_option(name, value, directory, scope)
4072
def _get_stack(self, directory, scope=None, write_access=False):
4073
"""Get the configuration stack specified by ``directory`` and ``scope``.
4075
:param directory: Where the configurations are derived from.
4077
:param scope: A specific config to start from.
4079
:param write_access: Whether a write access to the stack will be
4082
# FIXME: scope should allow access to plugin-specific stacks (even
4083
# reduced to the plugin-specific store), related to
4084
# http://pad.lv/788991 -- vila 2011-11-15
4085
if scope is not None:
4086
if scope == 'bazaar':
4087
return GlobalStack()
4088
elif scope == 'locations':
4089
return LocationStack(directory)
4090
elif scope == 'branch':
4092
controldir.ControlDir.open_containing_tree_or_branch(
4095
self.add_cleanup(br.lock_write().unlock)
4096
return br.get_config_stack()
4097
raise errors.NoSuchConfig(scope)
4101
controldir.ControlDir.open_containing_tree_or_branch(
4104
self.add_cleanup(br.lock_write().unlock)
4105
return br.get_config_stack()
4106
except errors.NotBranchError:
4107
return LocationStack(directory)
4109
def _quote_multiline(self, value):
4111
value = '"""' + value + '"""'
4114
def _show_value(self, name, directory, scope):
4115
conf = self._get_stack(directory, scope)
4116
value = conf.get(name, expand=True, convert=False)
4117
if value is not None:
4118
# Quote the value appropriately
4119
value = self._quote_multiline(value)
4120
self.outf.write('%s\n' % (value,))
4122
raise errors.NoSuchConfigOption(name)
4124
def _show_matching_options(self, name, directory, scope):
4125
name = lazy_regex.lazy_compile(name)
4126
# We want any error in the regexp to be raised *now* so we need to
4127
# avoid the delay introduced by the lazy regexp. But, we still do
4128
# want the nicer errors raised by lazy_regex.
4129
name._compile_and_collapse()
4132
conf = self._get_stack(directory, scope)
4133
for store, section in conf.iter_sections():
4134
for oname in section.iter_option_names():
4135
if name.search(oname):
4136
if cur_store_id != store.id:
4137
# Explain where the options are defined
4138
self.outf.write('%s:\n' % (store.id,))
4139
cur_store_id = store.id
4141
if (section.id is not None and cur_section != section.id):
4142
# Display the section id as it appears in the store
4143
# (None doesn't appear by definition)
4144
self.outf.write(' [%s]\n' % (section.id,))
4145
cur_section = section.id
4146
value = section.get(oname, expand=False)
4147
# Quote the value appropriately
4148
value = self._quote_multiline(value)
4149
self.outf.write(' %s = %s\n' % (oname, value))
4151
def _set_config_option(self, name, value, directory, scope):
4152
conf = self._get_stack(directory, scope, write_access=True)
4153
conf.set(name, value)
4155
def _remove_config_option(self, name, directory, scope):
4157
raise errors.BzrCommandError(
4158
'--remove expects an option to remove.')
4159
conf = self._get_stack(directory, scope, write_access=True)
4163
raise errors.NoSuchConfigOption(name)
4168
# We need adapters that can build a Store or a Stack in a test context. Test
4169
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4170
# themselves. The builder will receive a test instance and should return a
4171
# ready-to-use store or stack. Plugins that define new store/stacks can also
4172
# register themselves here to be tested against the tests defined in
4173
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4174
# for the same test.
4176
# The registered object should be a callable receiving a test instance
4177
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4179
test_store_builder_registry = registry.Registry()
4181
# The registered object should be a callable receiving a test instance
4182
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4184
test_stack_builder_registry = registry.Registry()