1508
2260
configobj[name] = value
1510
2262
configobj.setdefault(section, {})[name] = value
2263
for hook in OldConfigHooks['set']:
2264
hook(self, name, value)
2265
self._set_configobj(configobj)
2267
def remove_option(self, option_name, section_name=None):
2268
configobj = self._get_configobj()
2269
if section_name is None:
2270
del configobj[option_name]
2272
del configobj[section_name][option_name]
2273
for hook in OldConfigHooks['remove']:
2274
hook(self, option_name)
1511
2275
self._set_configobj(configobj)
1513
2277
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2279
f = BytesIO(self._transport.get_bytes(self._filename))
2280
for hook in OldConfigHooks['load']:
1516
2283
except errors.NoSuchFile:
2285
except errors.PermissionDenied as e:
2286
trace.warning("Permission denied while trying to open "
2287
"configuration file %s.", urlutils.unescape_for_display(
2288
urlutils.join(self._transport.base, self._filename), "utf-8"))
2291
def _external_url(self):
2292
return urlutils.join(self._transport.external_url(), self._filename)
1519
2294
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2295
f = self._get_config_file()
2298
conf = ConfigObj(f, encoding='utf-8')
2299
except configobj.ConfigObjError as e:
2300
raise ParseConfigError(e.errors, self._external_url())
2301
except UnicodeDecodeError:
2302
raise ConfigContentError(self._external_url())
1522
2307
def _set_configobj(self, configobj):
1523
out_file = StringIO()
2308
out_file = BytesIO()
1524
2309
configobj.write(out_file)
1525
2310
out_file.seek(0)
1526
2311
self._transport.put_file(self._filename, out_file)
2312
for hook in OldConfigHooks['save']:
2316
class Option(object):
2317
"""An option definition.
2319
The option *values* are stored in config files and found in sections.
2321
Here we define various properties about the option itself, its default
2322
value, how to convert it from stores, what to do when invalid values are
2323
encoutered, in which config files it can be stored.
2326
def __init__(self, name, override_from_env=None,
2327
default=None, default_from_env=None,
2328
help=None, from_unicode=None, invalid=None, unquote=True):
2329
"""Build an option definition.
2331
:param name: the name used to refer to the option.
2333
:param override_from_env: A list of environment variables which can
2334
provide override any configuration setting.
2336
:param default: the default value to use when none exist in the config
2337
stores. This is either a string that ``from_unicode`` will convert
2338
into the proper type, a callable returning a unicode string so that
2339
``from_unicode`` can be used on the return value, or a python
2340
object that can be stringified (so only the empty list is supported
2343
:param default_from_env: A list of environment variables which can
2344
provide a default value. 'default' will be used only if none of the
2345
variables specified here are set in the environment.
2347
:param help: a doc string to explain the option to the user.
2349
:param from_unicode: a callable to convert the unicode string
2350
representing the option value in a store or its default value.
2352
:param invalid: the action to be taken when an invalid value is
2353
encountered in a store. This is called only when from_unicode is
2354
invoked to convert a string and returns None or raise ValueError or
2355
TypeError. Accepted values are: None (ignore invalid values),
2356
'warning' (emit a warning), 'error' (emit an error message and
2359
:param unquote: should the unicode value be unquoted before conversion.
2360
This should be used only when the store providing the values cannot
2361
safely unquote them (see http://pad.lv/906897). It is provided so
2362
daughter classes can handle the quoting themselves.
2364
if override_from_env is None:
2365
override_from_env = []
2366
if default_from_env is None:
2367
default_from_env = []
2369
self.override_from_env = override_from_env
2370
# Convert the default value to a unicode string so all values are
2371
# strings internally before conversion (via from_unicode) is attempted.
2374
elif isinstance(default, list):
2375
# Only the empty list is supported
2377
raise AssertionError(
2378
'Only empty lists are supported as default values')
2380
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2381
# Rely on python to convert strings, booleans and integers
2382
self.default = u'%s' % (default,)
2383
elif callable(default):
2384
self.default = default
2386
# other python objects are not expected
2387
raise AssertionError('%r is not supported as a default value'
2389
self.default_from_env = default_from_env
2391
self.from_unicode = from_unicode
2392
self.unquote = unquote
2393
if invalid and invalid not in ('warning', 'error'):
2394
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2395
self.invalid = invalid
2401
def convert_from_unicode(self, store, unicode_value):
2402
if self.unquote and store is not None and unicode_value is not None:
2403
unicode_value = store.unquote(unicode_value)
2404
if self.from_unicode is None or unicode_value is None:
2405
# Don't convert or nothing to convert
2406
return unicode_value
2408
converted = self.from_unicode(unicode_value)
2409
except (ValueError, TypeError):
2410
# Invalid values are ignored
2412
if converted is None and self.invalid is not None:
2413
# The conversion failed
2414
if self.invalid == 'warning':
2415
trace.warning('Value "%s" is not valid for "%s"',
2416
unicode_value, self.name)
2417
elif self.invalid == 'error':
2418
raise ConfigOptionValueError(self.name, unicode_value)
2421
def get_override(self):
2423
for var in self.override_from_env:
2425
# If the env variable is defined, its value takes precedence
2426
if sys.version_info[0] == 2:
2427
value = os.environ[var].decode(osutils.get_user_encoding())
2429
value = os.environ[var]
2435
def get_default(self):
2437
for var in self.default_from_env:
2439
# If the env variable is defined, its value is the default one
2440
value = os.environ[var]
2442
value = value.decode(osutils.get_user_encoding())
2447
# Otherwise, fallback to the value defined at registration
2448
if callable(self.default):
2449
value = self.default()
2450
if not isinstance(value, text_type):
2451
raise AssertionError(
2452
"Callable default value for '%s' should be unicode"
2455
value = self.default
2458
def get_help_topic(self):
2461
def get_help_text(self, additional_see_also=None, plain=True):
2463
from breezy import help_topics
2464
result += help_topics._format_see_also(additional_see_also)
2466
result = help_topics.help_as_plain_text(result)
2470
# Predefined converters to get proper values from store
2472
def bool_from_store(unicode_str):
2473
return ui.bool_from_string(unicode_str)
2476
def int_from_store(unicode_str):
2477
return int(unicode_str)
2480
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2482
def int_SI_from_store(unicode_str):
2483
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2485
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2486
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2489
:return Integer, expanded to its base-10 value if a proper SI unit is
2490
found, None otherwise.
2492
regexp = "^(\\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2493
p = re.compile(regexp, re.IGNORECASE)
2494
m = p.match(unicode_str)
2497
val, _, unit = m.groups()
2501
coeff = _unit_suffixes[unit.upper()]
2503
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2508
def float_from_store(unicode_str):
2509
return float(unicode_str)
2512
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2514
_list_converter_config = configobj.ConfigObj(
2515
{}, encoding='utf-8', list_values=True, interpolation=False)
2518
class ListOption(Option):
2520
def __init__(self, name, default=None, default_from_env=None,
2521
help=None, invalid=None):
2522
"""A list Option definition.
2524
This overrides the base class so the conversion from a unicode string
2525
can take quoting into account.
2527
super(ListOption, self).__init__(
2528
name, default=default, default_from_env=default_from_env,
2529
from_unicode=self.from_unicode, help=help,
2530
invalid=invalid, unquote=False)
2532
def from_unicode(self, unicode_str):
2533
if not isinstance(unicode_str, string_types):
2535
# Now inject our string directly as unicode. All callers got their
2536
# value from configobj, so values that need to be quoted are already
2538
_list_converter_config.reset()
2539
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2540
maybe_list = _list_converter_config['list']
2541
if isinstance(maybe_list, string_types):
2543
# A single value, most probably the user forgot (or didn't care
2544
# to add) the final ','
2547
# The empty string, convert to empty list
2550
# We rely on ConfigObj providing us with a list already
2555
class RegistryOption(Option):
2556
"""Option for a choice from a registry."""
2558
def __init__(self, name, registry, default_from_env=None,
2559
help=None, invalid=None):
2560
"""A registry based Option definition.
2562
This overrides the base class so the conversion from a unicode string
2563
can take quoting into account.
2565
super(RegistryOption, self).__init__(
2566
name, default=lambda: registry.default_key,
2567
default_from_env=default_from_env,
2568
from_unicode=self.from_unicode, help=help,
2569
invalid=invalid, unquote=False)
2570
self.registry = registry
2572
def from_unicode(self, unicode_str):
2573
if not isinstance(unicode_str, string_types):
2576
return self.registry.get(unicode_str)
2579
"Invalid value %s for %s."
2580
"See help for a list of possible values." % (unicode_str,
2585
ret = [self._help, "\n\nThe following values are supported:\n"]
2586
for key in self.registry.keys():
2587
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2591
_option_ref_re = lazy_regex.lazy_compile('({[^\\d\\W](?:\\.\\w|-\\w|\\w)*})')
2592
"""Describes an expandable option reference.
2594
We want to match the most embedded reference first.
2596
I.e. for '{{foo}}' we will get '{foo}',
2597
for '{bar{baz}}' we will get '{baz}'
2600
def iter_option_refs(string):
2601
# Split isolate refs so every other chunk is a ref
2603
for chunk in _option_ref_re.split(string):
2608
class OptionRegistry(registry.Registry):
2609
"""Register config options by their name.
2611
This overrides ``registry.Registry`` to simplify registration by acquiring
2612
some information from the option object itself.
2615
def _check_option_name(self, option_name):
2616
"""Ensures an option name is valid.
2618
:param option_name: The name to validate.
2620
if _option_ref_re.match('{%s}' % option_name) is None:
2621
raise IllegalOptionName(option_name)
2623
def register(self, option):
2624
"""Register a new option to its name.
2626
:param option: The option to register. Its name is used as the key.
2628
self._check_option_name(option.name)
2629
super(OptionRegistry, self).register(option.name, option,
2632
def register_lazy(self, key, module_name, member_name):
2633
"""Register a new option to be loaded on request.
2635
:param key: the key to request the option later. Since the registration
2636
is lazy, it should be provided and match the option name.
2638
:param module_name: the python path to the module. Such as 'os.path'.
2640
:param member_name: the member of the module to return. If empty or
2641
None, get() will return the module itself.
2643
self._check_option_name(key)
2644
super(OptionRegistry, self).register_lazy(key,
2645
module_name, member_name)
2647
def get_help(self, key=None):
2648
"""Get the help text associated with the given key"""
2649
option = self.get(key)
2650
the_help = option.help
2651
if callable(the_help):
2652
return the_help(self, key)
2656
option_registry = OptionRegistry()
2659
# Registered options in lexicographical order
2661
option_registry.register(
2662
Option('append_revisions_only',
2663
default=None, from_unicode=bool_from_store, invalid='warning',
2665
Whether to only append revisions to the mainline.
2667
If this is set to true, then it is not possible to change the
2668
existing mainline of the branch.
2670
option_registry.register(
2671
ListOption('acceptable_keys',
2674
List of GPG key patterns which are acceptable for verification.
2676
option_registry.register(
2677
Option('add.maximum_file_size',
2678
default=u'20MB', from_unicode=int_SI_from_store,
2680
Size above which files should be added manually.
2682
Files below this size are added automatically when using ``bzr add`` without
2685
A negative value means disable the size check.
2687
option_registry.register(
2689
default=None, from_unicode=bool_from_store,
2691
Is the branch bound to ``bound_location``.
2693
If set to "True", the branch should act as a checkout, and push each commit to
2694
the bound_location. This option is normally set by ``bind``/``unbind``.
2696
See also: bound_location.
2698
option_registry.register(
2699
Option('bound_location',
2702
The location that commits should go to when acting as a checkout.
2704
This option is normally set by ``bind``.
2708
option_registry.register(
2709
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2711
Whether revisions associated with tags should be fetched.
2713
option_registry.register_lazy(
2714
'transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2715
option_registry.register(
2716
Option('bzr.workingtree.worth_saving_limit', default=10,
2717
from_unicode=int_from_store, invalid='warning',
2719
How many changes before saving the dirstate.
2721
-1 means that we will never rewrite the dirstate file for only
2722
stat-cache changes. Regardless of this setting, we will always rewrite
2723
the dirstate file if a file is added/removed/renamed/etc. This flag only
2724
affects the behavior of updating the dirstate file after we notice that
2725
a file has been touched.
2727
option_registry.register(
2728
Option('bugtracker', default=None,
2730
Default bug tracker to use.
2732
This bug tracker will be used for example when marking bugs
2733
as fixed using ``bzr commit --fixes``, if no explicit
2734
bug tracker was specified.
2736
option_registry.register(
2737
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2738
from_unicode=signature_policy_from_unicode,
2740
GPG checking policy.
2742
Possible values: require, ignore, check-available (default)
2744
this option will control whether bzr will require good gpg
2745
signatures, ignore them, or check them if they are
2748
option_registry.register(
2749
Option('child_submit_format',
2750
help='''The preferred format of submissions to this branch.'''))
2751
option_registry.register(
2752
Option('child_submit_to',
2753
help='''Where submissions to this branch are mailed to.'''))
2754
option_registry.register(
2755
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2756
from_unicode=signing_policy_from_unicode,
2760
Possible values: always, never, when-required (default)
2762
This option controls whether bzr will always create
2763
gpg signatures or not on commits.
2765
option_registry.register(
2766
Option('dirstate.fdatasync', default=True,
2767
from_unicode=bool_from_store,
2769
Flush dirstate changes onto physical disk?
2771
If true (default), working tree metadata changes are flushed through the
2772
OS buffers to physical disk. This is somewhat slower, but means data
2773
should not be lost if the machine crashes. See also repository.fdatasync.
2775
option_registry.register(
2776
ListOption('debug_flags', default=[],
2777
help='Debug flags to activate.'))
2778
option_registry.register(
2779
Option('default_format', default='2a',
2780
help='Format used when creating branches.'))
2781
option_registry.register(
2782
Option('dpush_strict', default=None,
2783
from_unicode=bool_from_store,
2785
The default value for ``dpush --strict``.
2787
If present, defines the ``--strict`` option default value for checking
2788
uncommitted changes before pushing into a different VCS without any
2789
custom bzr metadata.
2791
option_registry.register(
2793
help='The command called to launch an editor to enter a message.'))
2794
option_registry.register(
2795
Option('email', override_from_env=['BRZ_EMAIL'], default=default_email,
2796
help='The users identity'))
2797
option_registry.register(
2798
Option('gpg_signing_key',
2801
GPG key to use for signing.
2803
This defaults to the first key associated with the users email.
2805
option_registry.register(
2807
help='Language to translate messages into.'))
2808
option_registry.register(
2809
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2811
Steal locks that appears to be dead.
2813
If set to True, bzr will check if a lock is supposed to be held by an
2814
active process from the same user on the same machine. If the user and
2815
machine match, but no process with the given PID is active, then bzr
2816
will automatically break the stale lock, and create a new lock for
2818
Otherwise, bzr will prompt as normal to break the lock.
2820
option_registry.register(
2821
Option('log_format', default='long',
2823
Log format to use when displaying revisions.
2825
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2826
may be provided by plugins.
2828
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2830
option_registry.register(
2831
Option('output_encoding',
2832
help= 'Unicode encoding for output'
2833
' (terminal encoding if not specified).'))
2834
option_registry.register(
2835
Option('parent_location',
2838
The location of the default branch for pull or merge.
2840
This option is normally set when creating a branch, the first ``pull`` or by
2841
``pull --remember``.
2843
option_registry.register(
2844
Option('post_commit', default=None,
2846
Post commit functions.
2848
An ordered list of python functions to call, separated by spaces.
2850
Each function takes branch, rev_id as parameters.
2852
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2854
option_registry.register(
2855
Option('public_branch',
2858
A publically-accessible version of this branch.
2860
This implies that the branch setting this option is not publically-accessible.
2861
Used and set by ``bzr send``.
2863
option_registry.register(
2864
Option('push_location',
2867
The location of the default branch for push.
2869
This option is normally set by the first ``push`` or ``push --remember``.
2871
option_registry.register(
2872
Option('push_strict', default=None,
2873
from_unicode=bool_from_store,
2875
The default value for ``push --strict``.
2877
If present, defines the ``--strict`` option default value for checking
2878
uncommitted changes before sending a merge directive.
2880
option_registry.register(
2881
Option('repository.fdatasync', default=True,
2882
from_unicode=bool_from_store,
2884
Flush repository changes onto physical disk?
2886
If true (default), repository changes are flushed through the OS buffers
2887
to physical disk. This is somewhat slower, but means data should not be
2888
lost if the machine crashes. See also dirstate.fdatasync.
2890
option_registry.register_lazy('smtp_server',
2891
'breezy.smtp_connection', 'smtp_server')
2892
option_registry.register_lazy('smtp_password',
2893
'breezy.smtp_connection', 'smtp_password')
2894
option_registry.register_lazy('smtp_username',
2895
'breezy.smtp_connection', 'smtp_username')
2896
option_registry.register(
2897
Option('selftest.timeout',
2899
from_unicode=int_from_store,
2900
help='Abort selftest if one test takes longer than this many seconds',
2903
option_registry.register(
2904
Option('send_strict', default=None,
2905
from_unicode=bool_from_store,
2907
The default value for ``send --strict``.
2909
If present, defines the ``--strict`` option default value for checking
2910
uncommitted changes before sending a bundle.
2913
option_registry.register(
2914
Option('serve.client_timeout',
2915
default=300.0, from_unicode=float_from_store,
2916
help="If we wait for a new request from a client for more than"
2917
" X seconds, consider the client idle, and hangup."))
2918
option_registry.register(
2919
Option('stacked_on_location',
2921
help="""The location where this branch is stacked on."""))
2922
option_registry.register(
2923
Option('submit_branch',
2926
The branch you intend to submit your current work to.
2928
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2929
by the ``submit:`` revision spec.
2931
option_registry.register(
2933
help='''Where submissions from this branch are mailed to.'''))
2934
option_registry.register(
2935
ListOption('suppress_warnings',
2937
help="List of warning classes to suppress."))
2938
option_registry.register(
2939
Option('validate_signatures_in_log', default=False,
2940
from_unicode=bool_from_store, invalid='warning',
2941
help='''Whether to validate signatures in brz log.'''))
2942
option_registry.register_lazy('ssl.ca_certs',
2943
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2945
option_registry.register_lazy('ssl.cert_reqs',
2946
'breezy.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2949
class Section(object):
2950
"""A section defines a dict of option name => value.
2952
This is merely a read-only dict which can add some knowledge about the
2953
options. It is *not* a python dict object though and doesn't try to mimic
2957
def __init__(self, section_id, options):
2958
self.id = section_id
2959
# We re-use the dict-like object received
2960
self.options = options
2962
def get(self, name, default=None, expand=True):
2963
return self.options.get(name, default)
2965
def iter_option_names(self):
2966
for k in self.options.keys():
2970
# Mostly for debugging use
2971
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2974
_NewlyCreatedOption = object()
2975
"""Was the option created during the MutableSection lifetime"""
2976
_DeletedOption = object()
2977
"""Was the option deleted during the MutableSection lifetime"""
2980
class MutableSection(Section):
2981
"""A section allowing changes and keeping track of the original values."""
2983
def __init__(self, section_id, options):
2984
super(MutableSection, self).__init__(section_id, options)
2985
self.reset_changes()
2987
def set(self, name, value):
2988
if name not in self.options:
2989
# This is a new option
2990
self.orig[name] = _NewlyCreatedOption
2991
elif name not in self.orig:
2992
self.orig[name] = self.get(name, None)
2993
self.options[name] = value
2995
def remove(self, name):
2996
if name not in self.orig and name in self.options:
2997
self.orig[name] = self.get(name, None)
2998
del self.options[name]
3000
def reset_changes(self):
3003
def apply_changes(self, dirty, store):
3004
"""Apply option value changes.
3006
``self`` has been reloaded from the persistent storage. ``dirty``
3007
contains the changes made since the previous loading.
3009
:param dirty: the mutable section containing the changes.
3011
:param store: the store containing the section
3013
for k, expected in dirty.orig.items():
3014
actual = dirty.get(k, _DeletedOption)
3015
reloaded = self.get(k, _NewlyCreatedOption)
3016
if actual is _DeletedOption:
3017
if k in self.options:
3021
# Report concurrent updates in an ad-hoc way. This should only
3022
# occurs when different processes try to update the same option
3023
# which is not supported (as in: the config framework is not meant
3024
# to be used as a sharing mechanism).
3025
if expected != reloaded:
3026
if actual is _DeletedOption:
3027
actual = '<DELETED>'
3028
if reloaded is _NewlyCreatedOption:
3029
reloaded = '<CREATED>'
3030
if expected is _NewlyCreatedOption:
3031
expected = '<CREATED>'
3032
# Someone changed the value since we get it from the persistent
3034
trace.warning(gettext(
3035
"Option {0} in section {1} of {2} was changed"
3036
" from {3} to {4}. The {5} value will be saved.".format(
3037
k, self.id, store.external_url(), expected,
3039
# No need to keep track of these changes
3040
self.reset_changes()
3043
class Store(object):
3044
"""Abstract interface to persistent storage for configuration options."""
3046
readonly_section_class = Section
3047
mutable_section_class = MutableSection
3050
# Which sections need to be saved (by section id). We use a dict here
3051
# so the dirty sections can be shared by multiple callers.
3052
self.dirty_sections = {}
3054
def is_loaded(self):
3055
"""Returns True if the Store has been loaded.
3057
This is used to implement lazy loading and ensure the persistent
3058
storage is queried only when needed.
3060
raise NotImplementedError(self.is_loaded)
3063
"""Loads the Store from persistent storage."""
3064
raise NotImplementedError(self.load)
3066
def _load_from_string(self, bytes):
3067
"""Create a store from a string in configobj syntax.
3069
:param bytes: A string representing the file content.
3071
raise NotImplementedError(self._load_from_string)
3074
"""Unloads the Store.
3076
This should make is_loaded() return False. This is used when the caller
3077
knows that the persistent storage has changed or may have change since
3080
raise NotImplementedError(self.unload)
3082
def quote(self, value):
3083
"""Quote a configuration option value for storing purposes.
3085
This allows Stacks to present values as they will be stored.
3089
def unquote(self, value):
3090
"""Unquote a configuration option value into unicode.
3092
The received value is quoted as stored.
3097
"""Saves the Store to persistent storage."""
3098
raise NotImplementedError(self.save)
3100
def _need_saving(self):
3101
for s in self.dirty_sections.values():
3103
# At least one dirty section contains a modification
3107
def apply_changes(self, dirty_sections):
3108
"""Apply changes from dirty sections while checking for coherency.
3110
The Store content is discarded and reloaded from persistent storage to
3111
acquire up-to-date values.
3113
Dirty sections are MutableSection which kept track of the value they
3114
are expected to update.
3116
# We need an up-to-date version from the persistent storage, unload the
3117
# store. The reload will occur when needed (triggered by the first
3118
# get_mutable_section() call below.
3120
# Apply the changes from the preserved dirty sections
3121
for section_id, dirty in dirty_sections.items():
3122
clean = self.get_mutable_section(section_id)
3123
clean.apply_changes(dirty, self)
3124
# Everything is clean now
3125
self.dirty_sections = {}
3127
def save_changes(self):
3128
"""Saves the Store to persistent storage if changes occurred.
3130
Apply the changes recorded in the mutable sections to a store content
3131
refreshed from persistent storage.
3133
raise NotImplementedError(self.save_changes)
3135
def external_url(self):
3136
raise NotImplementedError(self.external_url)
3138
def get_sections(self):
3139
"""Returns an ordered iterable of existing sections.
3141
:returns: An iterable of (store, section).
3143
raise NotImplementedError(self.get_sections)
3145
def get_mutable_section(self, section_id=None):
3146
"""Returns the specified mutable section.
3148
:param section_id: The section identifier
3150
raise NotImplementedError(self.get_mutable_section)
3153
# Mostly for debugging use
3154
return "<config.%s(%s)>" % (self.__class__.__name__,
3155
self.external_url())
3158
class CommandLineStore(Store):
3159
"A store to carry command line overrides for the config options."""
3161
def __init__(self, opts=None):
3162
super(CommandLineStore, self).__init__()
3169
# The dict should be cleared but not replaced so it can be shared.
3170
self.options.clear()
3172
def _from_cmdline(self, overrides):
3173
# Reset before accepting new definitions
3175
for over in overrides:
3177
name, value = over.split('=', 1)
3179
raise errors.BzrCommandError(
3180
gettext("Invalid '%s', should be of the form 'name=value'")
3182
self.options[name] = value
3184
def external_url(self):
3185
# Not an url but it makes debugging easier and is never needed
3189
def get_sections(self):
3190
yield self, self.readonly_section_class(None, self.options)
3193
class IniFileStore(Store):
3194
"""A config Store using ConfigObj for storage.
3196
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3197
serialize/deserialize the config file.
3201
"""A config Store using ConfigObj for storage.
3203
super(IniFileStore, self).__init__()
3204
self._config_obj = None
3206
def is_loaded(self):
3207
return self._config_obj != None
3210
self._config_obj = None
3211
self.dirty_sections = {}
3213
def _load_content(self):
3214
"""Load the config file bytes.
3216
This should be provided by subclasses
3218
:return: Byte string
3220
raise NotImplementedError(self._load_content)
3222
def _save_content(self, content):
3223
"""Save the config file bytes.
3225
This should be provided by subclasses
3227
:param content: Config file bytes to write
3229
raise NotImplementedError(self._save_content)
3232
"""Load the store from the associated file."""
3233
if self.is_loaded():
3235
content = self._load_content()
3236
self._load_from_string(content)
3237
for hook in ConfigHooks['load']:
3240
def _load_from_string(self, bytes):
3241
"""Create a config store from a string.
3243
:param bytes: A string representing the file content.
3245
if self.is_loaded():
3246
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3247
co_input = BytesIO(bytes)
3249
# The config files are always stored utf8-encoded
3250
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3252
except configobj.ConfigObjError as e:
3253
self._config_obj = None
3254
raise ParseConfigError(e.errors, self.external_url())
3255
except UnicodeDecodeError:
3256
raise ConfigContentError(self.external_url())
3258
def save_changes(self):
3259
if not self.is_loaded():
3262
if not self._need_saving():
3264
# Preserve the current version
3265
dirty_sections = self.dirty_sections.copy()
3266
self.apply_changes(dirty_sections)
3267
# Save to the persistent storage
3271
if not self.is_loaded():
3275
self._config_obj.write(out)
3276
self._save_content(out.getvalue())
3277
for hook in ConfigHooks['save']:
3280
def get_sections(self):
3281
"""Get the configobj section in the file order.
3283
:returns: An iterable of (store, section).
3285
# We need a loaded store
3288
except (errors.NoSuchFile, errors.PermissionDenied):
3289
# If the file can't be read, there is no sections
3291
cobj = self._config_obj
3293
yield self, self.readonly_section_class(None, cobj)
3294
for section_name in cobj.sections:
3296
self.readonly_section_class(section_name,
3297
cobj[section_name]))
3299
def get_mutable_section(self, section_id=None):
3300
# We need a loaded store
3303
except errors.NoSuchFile:
3304
# The file doesn't exist, let's pretend it was empty
3305
self._load_from_string(b'')
3306
if section_id in self.dirty_sections:
3307
# We already created a mutable section for this id
3308
return self.dirty_sections[section_id]
3309
if section_id is None:
3310
section = self._config_obj
3312
section = self._config_obj.setdefault(section_id, {})
3313
mutable_section = self.mutable_section_class(section_id, section)
3314
# All mutable sections can become dirty
3315
self.dirty_sections[section_id] = mutable_section
3316
return mutable_section
3318
def quote(self, value):
3320
# configobj conflates automagical list values and quoting
3321
self._config_obj.list_values = True
3322
return self._config_obj._quote(value)
3324
self._config_obj.list_values = False
3326
def unquote(self, value):
3327
if value and isinstance(value, string_types):
3328
# _unquote doesn't handle None nor empty strings nor anything that
3329
# is not a string, really.
3330
value = self._config_obj._unquote(value)
3333
def external_url(self):
3334
# Since an IniFileStore can be used without a file (at least in tests),
3335
# it's better to provide something than raising a NotImplementedError.
3336
# All daughter classes are supposed to provide an implementation
3338
return 'In-Process Store, no URL'
3341
class TransportIniFileStore(IniFileStore):
3342
"""IniFileStore that loads files from a transport.
3344
:ivar transport: The transport object where the config file is located.
3346
:ivar file_name: The config file basename in the transport directory.
3349
def __init__(self, transport, file_name):
3350
"""A Store using a ini file on a Transport
3352
:param transport: The transport object where the config file is located.
3353
:param file_name: The config file basename in the transport directory.
3355
super(TransportIniFileStore, self).__init__()
3356
self.transport = transport
3357
self.file_name = file_name
3359
def _load_content(self):
3361
return self.transport.get_bytes(self.file_name)
3362
except errors.PermissionDenied:
3363
trace.warning("Permission denied while trying to load "
3364
"configuration store %s.", self.external_url())
3367
def _save_content(self, content):
3368
self.transport.put_bytes(self.file_name, content)
3370
def external_url(self):
3371
# FIXME: external_url should really accepts an optional relpath
3372
# parameter (bug #750169) :-/ -- vila 2011-04-04
3373
# The following will do in the interim but maybe we don't want to
3374
# expose a path here but rather a config ID and its associated
3375
# object </hand wawe>.
3376
return urlutils.join(
3377
self.transport.external_url(), urlutils.escape(self.file_name))
3380
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3381
# unlockable stores for use with objects that can already ensure the locking
3382
# (think branches). If different stores (not based on ConfigObj) are created,
3383
# they may face the same issue.
3386
class LockableIniFileStore(TransportIniFileStore):
3387
"""A ConfigObjStore using locks on save to ensure store integrity."""
3389
def __init__(self, transport, file_name, lock_dir_name=None):
3390
"""A config Store using ConfigObj for storage.
3392
:param transport: The transport object where the config file is located.
3394
:param file_name: The config file basename in the transport directory.
3396
if lock_dir_name is None:
3397
lock_dir_name = 'lock'
3398
self.lock_dir_name = lock_dir_name
3399
super(LockableIniFileStore, self).__init__(transport, file_name)
3400
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3402
def lock_write(self, token=None):
3403
"""Takes a write lock in the directory containing the config file.
3405
If the directory doesn't exist it is created.
3407
# FIXME: This doesn't check the ownership of the created directories as
3408
# ensure_config_dir_exists does. It should if the transport is local
3409
# -- vila 2011-04-06
3410
self.transport.create_prefix()
3411
token = self._lock.lock_write(token)
3412
return lock.LogicalLockResult(self.unlock, token)
3417
def break_lock(self):
3418
self._lock.break_lock()
3421
with self.lock_write():
3422
# We need to be able to override the undecorated implementation
3423
self.save_without_locking()
3425
def save_without_locking(self):
3426
super(LockableIniFileStore, self).save()
3429
# FIXME: global, breezy, shouldn't that be 'user' instead or even
3430
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3431
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3433
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3434
# functions or a registry will make it easier and clearer for tests, focusing
3435
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3436
# on a poolie's remark)
3437
class GlobalStore(LockableIniFileStore):
3438
"""A config store for global options.
3440
There is a single GlobalStore for a given process.
3443
def __init__(self, possible_transports=None):
3444
(path, kind) = _config_dir()
3445
t = transport.get_transport_from_path(
3446
path, possible_transports=possible_transports)
3447
filename = {'bazaar': 'bazaar.conf', 'breezy': 'breezy.conf'}[kind]
3448
super(GlobalStore, self).__init__(t, filename)
3452
class LocationStore(LockableIniFileStore):
3453
"""A config store for options specific to a location.
3455
There is a single LocationStore for a given process.
3458
def __init__(self, possible_transports=None):
3459
t = transport.get_transport_from_path(
3460
config_dir(), possible_transports=possible_transports)
3461
super(LocationStore, self).__init__(t, 'locations.conf')
3462
self.id = 'locations'
3465
class BranchStore(TransportIniFileStore):
3466
"""A config store for branch options.
3468
There is a single BranchStore for a given branch.
3471
def __init__(self, branch):
3472
super(BranchStore, self).__init__(branch.control_transport,
3474
self.branch = branch
3478
class ControlStore(LockableIniFileStore):
3480
def __init__(self, bzrdir):
3481
super(ControlStore, self).__init__(bzrdir.transport,
3483
lock_dir_name='branch_lock')
3487
class SectionMatcher(object):
3488
"""Select sections into a given Store.
3490
This is intended to be used to postpone getting an iterable of sections
3494
def __init__(self, store):
3497
def get_sections(self):
3498
# This is where we require loading the store so we can see all defined
3500
sections = self.store.get_sections()
3501
# Walk the revisions in the order provided
3502
for store, s in sections:
3506
def match(self, section):
3507
"""Does the proposed section match.
3509
:param section: A Section object.
3511
:returns: True if the section matches, False otherwise.
3513
raise NotImplementedError(self.match)
3516
class NameMatcher(SectionMatcher):
3518
def __init__(self, store, section_id):
3519
super(NameMatcher, self).__init__(store)
3520
self.section_id = section_id
3522
def match(self, section):
3523
return section.id == self.section_id
3526
class LocationSection(Section):
3528
def __init__(self, section, extra_path, branch_name=None):
3529
super(LocationSection, self).__init__(section.id, section.options)
3530
self.extra_path = extra_path
3531
if branch_name is None:
3533
self.locals = {'relpath': extra_path,
3534
'basename': urlutils.basename(extra_path),
3535
'branchname': branch_name}
3537
def get(self, name, default=None, expand=True):
3538
value = super(LocationSection, self).get(name, default)
3539
if value is not None and expand:
3540
policy_name = self.get(name + ':policy', None)
3541
policy = _policy_value.get(policy_name, POLICY_NONE)
3542
if policy == POLICY_APPENDPATH:
3543
value = urlutils.join(value, self.extra_path)
3544
# expand section local options right now (since POLICY_APPENDPATH
3545
# will never add options references, it's ok to expand after it).
3547
for is_ref, chunk in iter_option_refs(value):
3549
chunks.append(chunk)
3552
if ref in self.locals:
3553
chunks.append(self.locals[ref])
3555
chunks.append(chunk)
3556
value = ''.join(chunks)
3560
class StartingPathMatcher(SectionMatcher):
3561
"""Select sections for a given location respecting the Store order."""
3563
# FIXME: Both local paths and urls can be used for section names as well as
3564
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3565
# inherited the fuzziness from the previous ``LocationConfig``
3566
# implementation. We probably need to revisit which encoding is allowed for
3567
# both ``location`` and section names and how we normalize
3568
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3569
# related too. -- vila 2012-01-04
3571
def __init__(self, store, location):
3572
super(StartingPathMatcher, self).__init__(store)
3573
if location.startswith('file://'):
3574
location = urlutils.local_path_from_url(location)
3575
self.location = location
3577
def get_sections(self):
3578
"""Get all sections matching ``location`` in the store.
3580
The most generic sections are described first in the store, then more
3581
specific ones can be provided for reduced scopes.
3583
The returned section are therefore returned in the reversed order so
3584
the most specific ones can be found first.
3586
location_parts = self.location.rstrip('/').split('/')
3588
# Later sections are more specific, they should be returned first
3589
for _, section in reversed(list(store.get_sections())):
3590
if section.id is None:
3591
# The no-name section is always included if present
3592
yield store, LocationSection(section, self.location)
3594
section_path = section.id
3595
if section_path.startswith('file://'):
3596
# the location is already a local path or URL, convert the
3597
# section id to the same format
3598
section_path = urlutils.local_path_from_url(section_path)
3599
if (self.location.startswith(section_path)
3600
or fnmatch.fnmatch(self.location, section_path)):
3601
section_parts = section_path.rstrip('/').split('/')
3602
extra_path = '/'.join(location_parts[len(section_parts):])
3603
yield store, LocationSection(section, extra_path)
3606
class LocationMatcher(SectionMatcher):
3608
def __init__(self, store, location):
3609
super(LocationMatcher, self).__init__(store)
3610
url, params = urlutils.split_segment_parameters(location)
3611
if location.startswith('file://'):
3612
location = urlutils.local_path_from_url(location)
3613
self.location = location
3614
branch_name = params.get('branch')
3615
if branch_name is None:
3616
self.branch_name = urlutils.basename(self.location)
3618
self.branch_name = urlutils.unescape(branch_name)
3620
def _get_matching_sections(self):
3621
"""Get all sections matching ``location``."""
3622
# We slightly diverge from LocalConfig here by allowing the no-name
3623
# section as the most generic one and the lower priority.
3624
no_name_section = None
3626
# Filter out the no_name_section so _iter_for_location_by_parts can be
3627
# used (it assumes all sections have a name).
3628
for _, section in self.store.get_sections():
3629
if section.id is None:
3630
no_name_section = section
3632
all_sections.append(section)
3633
# Unfortunately _iter_for_location_by_parts deals with section names so
3634
# we have to resync.
3635
filtered_sections = _iter_for_location_by_parts(
3636
[s.id for s in all_sections], self.location)
3637
iter_all_sections = iter(all_sections)
3638
matching_sections = []
3639
if no_name_section is not None:
3640
matching_sections.append(
3641
(0, LocationSection(no_name_section, self.location)))
3642
for section_id, extra_path, length in filtered_sections:
3643
# a section id is unique for a given store so it's safe to take the
3644
# first matching section while iterating. Also, all filtered
3645
# sections are part of 'all_sections' and will always be found
3648
section = next(iter_all_sections)
3649
if section_id == section.id:
3650
section = LocationSection(section, extra_path,
3652
matching_sections.append((length, section))
3654
return matching_sections
3656
def get_sections(self):
3657
# Override the default implementation as we want to change the order
3658
# We want the longest (aka more specific) locations first
3659
sections = sorted(self._get_matching_sections(),
3660
key=lambda match: (match[0], match[1].id),
3662
# Sections mentioning 'ignore_parents' restrict the selection
3663
for _, section in sections:
3664
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3665
ignore = section.get('ignore_parents', None)
3666
if ignore is not None:
3667
ignore = ui.bool_from_string(ignore)
3670
# Finally, we have a valid section
3671
yield self.store, section
3674
# FIXME: _shared_stores should be an attribute of a library state once a
3675
# library_state object is always available.
3677
_shared_stores_at_exit_installed = False
3679
class Stack(object):
3680
"""A stack of configurations where an option can be defined"""
3682
def __init__(self, sections_def, store=None, mutable_section_id=None):
3683
"""Creates a stack of sections with an optional store for changes.
3685
:param sections_def: A list of Section or callables that returns an
3686
iterable of Section. This defines the Sections for the Stack and
3687
can be called repeatedly if needed.
3689
:param store: The optional Store where modifications will be
3690
recorded. If none is specified, no modifications can be done.
3692
:param mutable_section_id: The id of the MutableSection where changes
3693
are recorded. This requires the ``store`` parameter to be
3696
self.sections_def = sections_def
3698
self.mutable_section_id = mutable_section_id
3700
def iter_sections(self):
3701
"""Iterate all the defined sections."""
3702
# Ensuring lazy loading is achieved by delaying section matching (which
3703
# implies querying the persistent storage) until it can't be avoided
3704
# anymore by using callables to describe (possibly empty) section
3706
for sections in self.sections_def:
3707
for store, section in sections():
3708
yield store, section
3710
def get(self, name, expand=True, convert=True):
3711
"""Return the *first* option value found in the sections.
3713
This is where we guarantee that sections coming from Store are loaded
3714
lazily: the loading is delayed until we need to either check that an
3715
option exists or get its value, which in turn may require to discover
3716
in which sections it can be defined. Both of these (section and option
3717
existence) require loading the store (even partially).
3719
:param name: The queried option.
3721
:param expand: Whether options references should be expanded.
3723
:param convert: Whether the option value should be converted from
3724
unicode (do nothing for non-registered options).
3726
:returns: The value of the option.
3728
# FIXME: No caching of options nor sections yet -- vila 20110503
3730
found_store = None # Where the option value has been found
3731
# If the option is registered, it may provide additional info about
3734
opt = option_registry.get(name)
3739
def expand_and_convert(val):
3740
# This may need to be called in different contexts if the value is
3741
# None or ends up being None during expansion or conversion.
3744
if isinstance(val, string_types):
3745
val = self._expand_options_in_string(val)
3747
trace.warning('Cannot expand "%s":'
3748
' %s does not support option expansion'
3749
% (name, type(val)))
3751
val = found_store.unquote(val)
3753
val = opt.convert_from_unicode(found_store, val)
3756
# First of all, check if the environment can override the configuration
3758
if opt is not None and opt.override_from_env:
3759
value = opt.get_override()
3760
value = expand_and_convert(value)
3762
for store, section in self.iter_sections():
3763
value = section.get(name)
3764
if value is not None:
3767
value = expand_and_convert(value)
3768
if opt is not None and value is None:
3769
# If the option is registered, it may provide a default value
3770
value = opt.get_default()
3771
value = expand_and_convert(value)
3772
for hook in ConfigHooks['get']:
3773
hook(self, name, value)
3776
def expand_options(self, string, env=None):
3777
"""Expand option references in the string in the configuration context.
3779
:param string: The string containing option(s) to expand.
3781
:param env: An option dict defining additional configuration options or
3782
overriding existing ones.
3784
:returns: The expanded string.
3786
return self._expand_options_in_string(string, env)
3788
def _expand_options_in_string(self, string, env=None, _refs=None):
3789
"""Expand options in the string in the configuration context.
3791
:param string: The string to be expanded.
3793
:param env: An option dict defining additional configuration options or
3794
overriding existing ones.
3796
:param _refs: Private list (FIFO) containing the options being expanded
3799
:returns: The expanded string.
3802
# Not much to expand there
3805
# What references are currently resolved (to detect loops)
3808
# We need to iterate until no more refs appear ({{foo}} will need two
3809
# iterations for example).
3814
for is_ref, chunk in iter_option_refs(result):
3816
chunks.append(chunk)
3821
raise OptionExpansionLoop(string, _refs)
3823
value = self._expand_option(name, env, _refs)
3825
raise ExpandingUnknownOption(name, string)
3826
chunks.append(value)
3828
result = ''.join(chunks)
3831
def _expand_option(self, name, env, _refs):
3832
if env is not None and name in env:
3833
# Special case, values provided in env takes precedence over
3837
value = self.get(name, expand=False, convert=False)
3838
value = self._expand_options_in_string(value, env, _refs)
3841
def _get_mutable_section(self):
3842
"""Get the MutableSection for the Stack.
3844
This is where we guarantee that the mutable section is lazily loaded:
3845
this means we won't load the corresponding store before setting a value
3846
or deleting an option. In practice the store will often be loaded but
3847
this helps catching some programming errors.
3850
section = store.get_mutable_section(self.mutable_section_id)
3851
return store, section
3853
def set(self, name, value):
3854
"""Set a new value for the option."""
3855
store, section = self._get_mutable_section()
3856
section.set(name, store.quote(value))
3857
for hook in ConfigHooks['set']:
3858
hook(self, name, value)
3860
def remove(self, name):
3861
"""Remove an existing option."""
3862
_, section = self._get_mutable_section()
3863
section.remove(name)
3864
for hook in ConfigHooks['remove']:
3868
# Mostly for debugging use
3869
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3871
def _get_overrides(self):
3872
if breezy._global_state is not None:
3873
# TODO(jelmer): Urgh, this is circular so we can't call breezy.get_global_state()
3874
return breezy._global_state.cmdline_overrides.get_sections()
3877
def get_shared_store(self, store, state=None):
3878
"""Get a known shared store.
3880
Store urls uniquely identify them and are used to ensure a single copy
3881
is shared across all users.
3883
:param store: The store known to the caller.
3885
:param state: The library state where the known stores are kept.
3887
:returns: The store received if it's not a known one, an already known
3891
# TODO(jelmer): Urgh, this is circular so we can't call breezy.get_global_state()
3892
state = breezy._global_state
3894
global _shared_stores_at_exit_installed
3895
stores = _shared_stores
3896
def save_config_changes():
3897
for k, store in stores.items():
3898
store.save_changes()
3899
if not _shared_stores_at_exit_installed:
3900
# FIXME: Ugly hack waiting for library_state to always be
3901
# available. -- vila 20120731
3903
atexit.register(save_config_changes)
3904
_shared_stores_at_exit_installed = True
3906
stores = state.config_stores
3907
url = store.external_url()
3915
class MemoryStack(Stack):
3916
"""A configuration stack defined from a string.
3918
This is mainly intended for tests and requires no disk resources.
3921
def __init__(self, content=None):
3922
"""Create an in-memory stack from a given content.
3924
It uses a single store based on configobj and support reading and
3927
:param content: The initial content of the store. If None, the store is
3928
not loaded and ``_load_from_string`` can and should be used if
3931
store = IniFileStore()
3932
if content is not None:
3933
store._load_from_string(content)
3934
super(MemoryStack, self).__init__(
3935
[store.get_sections], store)
3938
class _CompatibleStack(Stack):
3939
"""Place holder for compatibility with previous design.
3941
This is intended to ease the transition from the Config-based design to the
3942
Stack-based design and should not be used nor relied upon by plugins.
3944
One assumption made here is that the daughter classes will all use Stores
3945
derived from LockableIniFileStore).
3947
It implements set() and remove () by re-loading the store before applying
3948
the modification and saving it.
3950
The long term plan being to implement a single write by store to save
3951
all modifications, this class should not be used in the interim.
3954
def set(self, name, value):
3957
super(_CompatibleStack, self).set(name, value)
3958
# Force a write to persistent storage
3961
def remove(self, name):
3964
super(_CompatibleStack, self).remove(name)
3965
# Force a write to persistent storage
3969
class GlobalStack(Stack):
3970
"""Global options only stack.
3972
The following sections are queried:
3974
* command-line overrides,
3976
* the 'DEFAULT' section in bazaar.conf
3978
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3983
gstore = self.get_shared_store(GlobalStore())
3984
super(GlobalStack, self).__init__(
3985
[self._get_overrides,
3986
NameMatcher(gstore, 'DEFAULT').get_sections],
3987
gstore, mutable_section_id='DEFAULT')
3990
class LocationStack(Stack):
3991
"""Per-location options falling back to global options stack.
3994
The following sections are queried:
3996
* command-line overrides,
3998
* the sections matching ``location`` in ``locations.conf``, the order being
3999
defined by the number of path components in the section glob, higher
4000
numbers first (from most specific section to most generic).
4002
* the 'DEFAULT' section in bazaar.conf
4004
This stack will use the ``location`` section in locations.conf as its
4008
def __init__(self, location):
4009
"""Make a new stack for a location and global configuration.
4011
:param location: A URL prefix to """
4012
lstore = self.get_shared_store(LocationStore())
4013
if location.startswith('file://'):
4014
location = urlutils.local_path_from_url(location)
4015
gstore = self.get_shared_store(GlobalStore())
4016
super(LocationStack, self).__init__(
4017
[self._get_overrides,
4018
LocationMatcher(lstore, location).get_sections,
4019
NameMatcher(gstore, 'DEFAULT').get_sections],
4020
lstore, mutable_section_id=location)
4023
class BranchStack(Stack):
4024
"""Per-location options falling back to branch then global options stack.
4026
The following sections are queried:
4028
* command-line overrides,
4030
* the sections matching ``location`` in ``locations.conf``, the order being
4031
defined by the number of path components in the section glob, higher
4032
numbers first (from most specific section to most generic),
4034
* the no-name section in branch.conf,
4036
* the ``DEFAULT`` section in ``bazaar.conf``.
4038
This stack will use the no-name section in ``branch.conf`` as its
4042
def __init__(self, branch):
4043
lstore = self.get_shared_store(LocationStore())
4044
bstore = branch._get_config_store()
4045
gstore = self.get_shared_store(GlobalStore())
4046
super(BranchStack, self).__init__(
4047
[self._get_overrides,
4048
LocationMatcher(lstore, branch.base).get_sections,
4049
NameMatcher(bstore, None).get_sections,
4050
NameMatcher(gstore, 'DEFAULT').get_sections],
4052
self.branch = branch
4054
def lock_write(self, token=None):
4055
return self.branch.lock_write(token)
4058
return self.branch.unlock()
4060
def set(self, name, value):
4061
with self.lock_write():
4062
super(BranchStack, self).set(name, value)
4063
# Unlocking the branch will trigger a store.save_changes() so the
4064
# last unlock saves all the changes.
4066
def remove(self, name):
4067
with self.lock_write():
4068
super(BranchStack, self).remove(name)
4069
# Unlocking the branch will trigger a store.save_changes() so the
4070
# last unlock saves all the changes.
4073
class RemoteControlStack(Stack):
4074
"""Remote control-only options stack."""
4076
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
4077
# with the stack used for remote bzr dirs. RemoteControlStack only uses
4078
# control.conf and is used only for stack options.
4080
def __init__(self, bzrdir):
4081
cstore = bzrdir._get_config_store()
4082
super(RemoteControlStack, self).__init__(
4083
[NameMatcher(cstore, None).get_sections],
4085
self.controldir = bzrdir
4088
class BranchOnlyStack(Stack):
4089
"""Branch-only options stack."""
4091
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4092
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4093
# -- vila 2011-12-16
4095
def __init__(self, branch):
4096
bstore = branch._get_config_store()
4097
super(BranchOnlyStack, self).__init__(
4098
[NameMatcher(bstore, None).get_sections],
4100
self.branch = branch
4102
def lock_write(self, token=None):
4103
return self.branch.lock_write(token)
4106
return self.branch.unlock()
4108
def set(self, name, value):
4109
with self.lock_write():
4110
super(BranchOnlyStack, self).set(name, value)
4111
# Force a write to persistent storage
4112
self.store.save_changes()
4114
def remove(self, name):
4115
with self.lock_write():
4116
super(BranchOnlyStack, self).remove(name)
4117
# Force a write to persistent storage
4118
self.store.save_changes()
4121
class cmd_config(commands.Command):
4122
__doc__ = """Display, set or remove a configuration option.
4124
Display the active value for option NAME.
4126
If --all is specified, NAME is interpreted as a regular expression and all
4127
matching options are displayed mentioning their scope and without resolving
4128
option references in the value). The active value that bzr will take into
4129
account is the first one displayed for each option.
4131
If NAME is not given, --all .* is implied (all options are displayed for the
4134
Setting a value is achieved by using NAME=value without spaces. The value
4135
is set in the most relevant scope and can be checked by displaying the
4138
Removing a value is achieved by using --remove NAME.
4141
takes_args = ['name?']
4145
# FIXME: This should be a registry option so that plugins can register
4146
# their own config files (or not) and will also address
4147
# http://pad.lv/788991 -- vila 20101115
4148
commands.Option('scope', help='Reduce the scope to the specified'
4149
' configuration file.',
4151
commands.Option('all',
4152
help='Display all the defined values for the matching options.',
4154
commands.Option('remove', help='Remove the option from'
4155
' the configuration file.'),
4158
_see_also = ['configuration']
4160
@commands.display_command
4161
def run(self, name=None, all=False, directory=None, scope=None,
4163
if directory is None:
4165
directory = directory_service.directories.dereference(directory)
4166
directory = urlutils.normalize_url(directory)
4168
raise errors.BzrError(
4169
'--all and --remove are mutually exclusive.')
4171
# Delete the option in the given scope
4172
self._remove_config_option(name, directory, scope)
4174
# Defaults to all options
4175
self._show_matching_options('.*', directory, scope)
4178
name, value = name.split('=', 1)
4180
# Display the option(s) value(s)
4182
self._show_matching_options(name, directory, scope)
4184
self._show_value(name, directory, scope)
4187
raise errors.BzrError(
4188
'Only one option can be set.')
4189
# Set the option value
4190
self._set_config_option(name, value, directory, scope)
4192
def _get_stack(self, directory, scope=None, write_access=False):
4193
"""Get the configuration stack specified by ``directory`` and ``scope``.
4195
:param directory: Where the configurations are derived from.
4197
:param scope: A specific config to start from.
4199
:param write_access: Whether a write access to the stack will be
4202
# FIXME: scope should allow access to plugin-specific stacks (even
4203
# reduced to the plugin-specific store), related to
4204
# http://pad.lv/788991 -- vila 2011-11-15
4205
if scope is not None:
4206
if scope == 'breezy':
4207
return GlobalStack()
4208
elif scope == 'locations':
4209
return LocationStack(directory)
4210
elif scope == 'branch':
4212
controldir.ControlDir.open_containing_tree_or_branch(
4215
self.add_cleanup(br.lock_write().unlock)
4216
return br.get_config_stack()
4217
raise NoSuchConfig(scope)
4221
controldir.ControlDir.open_containing_tree_or_branch(
4224
self.add_cleanup(br.lock_write().unlock)
4225
return br.get_config_stack()
4226
except errors.NotBranchError:
4227
return LocationStack(directory)
4229
def _quote_multiline(self, value):
4231
value = '"""' + value + '"""'
4234
def _show_value(self, name, directory, scope):
4235
conf = self._get_stack(directory, scope)
4236
value = conf.get(name, expand=True, convert=False)
4237
if value is not None:
4238
# Quote the value appropriately
4239
value = self._quote_multiline(value)
4240
self.outf.write('%s\n' % (value,))
4242
raise NoSuchConfigOption(name)
4244
def _show_matching_options(self, name, directory, scope):
4245
name = lazy_regex.lazy_compile(name)
4246
# We want any error in the regexp to be raised *now* so we need to
4247
# avoid the delay introduced by the lazy regexp. But, we still do
4248
# want the nicer errors raised by lazy_regex.
4249
name._compile_and_collapse()
4252
conf = self._get_stack(directory, scope)
4253
for store, section in conf.iter_sections():
4254
for oname in section.iter_option_names():
4255
if name.search(oname):
4256
if cur_store_id != store.id:
4257
# Explain where the options are defined
4258
self.outf.write('%s:\n' % (store.id,))
4259
cur_store_id = store.id
4261
if (section.id is not None and cur_section != section.id):
4262
# Display the section id as it appears in the store
4263
# (None doesn't appear by definition)
4264
self.outf.write(' [%s]\n' % (section.id,))
4265
cur_section = section.id
4266
value = section.get(oname, expand=False)
4267
# Quote the value appropriately
4268
value = self._quote_multiline(value)
4269
self.outf.write(' %s = %s\n' % (oname, value))
4271
def _set_config_option(self, name, value, directory, scope):
4272
conf = self._get_stack(directory, scope, write_access=True)
4273
conf.set(name, value)
4274
# Explicitly save the changes
4275
conf.store.save_changes()
4277
def _remove_config_option(self, name, directory, scope):
4279
raise errors.BzrCommandError(
4280
'--remove expects an option to remove.')
4281
conf = self._get_stack(directory, scope, write_access=True)
4284
# Explicitly save the changes
4285
conf.store.save_changes()
4287
raise NoSuchConfigOption(name)
4292
# We need adapters that can build a Store or a Stack in a test context. Test
4293
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4294
# themselves. The builder will receive a test instance and should return a
4295
# ready-to-use store or stack. Plugins that define new store/stacks can also
4296
# register themselves here to be tested against the tests defined in
4297
# breezy.tests.test_config. Note that the builder can be called multiple times
4298
# for the same test.
4300
# The registered object should be a callable receiving a test instance
4301
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4303
test_store_builder_registry = registry.Registry()
4305
# The registered object should be a callable receiving a test instance
4306
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4308
test_stack_builder_registry = registry.Registry()