1508
2228
configobj[name] = value
1510
2230
configobj.setdefault(section, {})[name] = value
2231
for hook in OldConfigHooks['set']:
2232
hook(self, name, value)
2233
self._set_configobj(configobj)
2235
def remove_option(self, option_name, section_name=None):
2236
configobj = self._get_configobj()
2237
if section_name is None:
2238
del configobj[option_name]
2240
del configobj[section_name][option_name]
2241
for hook in OldConfigHooks['remove']:
2242
hook(self, option_name)
1511
2243
self._set_configobj(configobj)
1513
2245
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2247
f = StringIO(self._transport.get_bytes(self._filename))
2248
for hook in OldConfigHooks['load']:
1516
2251
except errors.NoSuchFile:
1517
2252
return StringIO()
2253
except errors.PermissionDenied, e:
2254
trace.warning("Permission denied while trying to open "
2255
"configuration file %s.", urlutils.unescape_for_display(
2256
urlutils.join(self._transport.base, self._filename), "utf-8"))
2259
def _external_url(self):
2260
return urlutils.join(self._transport.external_url(), self._filename)
1519
2262
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2263
f = self._get_config_file()
2266
conf = ConfigObj(f, encoding='utf-8')
2267
except configobj.ConfigObjError, e:
2268
raise errors.ParseConfigError(e.errors, self._external_url())
2269
except UnicodeDecodeError:
2270
raise errors.ConfigContentError(self._external_url())
1522
2275
def _set_configobj(self, configobj):
1523
2276
out_file = StringIO()
1524
2277
configobj.write(out_file)
1525
2278
out_file.seek(0)
1526
2279
self._transport.put_file(self._filename, out_file)
2280
for hook in OldConfigHooks['save']:
2284
class Option(object):
2285
"""An option definition.
2287
The option *values* are stored in config files and found in sections.
2289
Here we define various properties about the option itself, its default
2290
value, how to convert it from stores, what to do when invalid values are
2291
encoutered, in which config files it can be stored.
2294
def __init__(self, name, override_from_env=None,
2295
default=None, default_from_env=None,
2296
help=None, from_unicode=None, invalid=None, unquote=True):
2297
"""Build an option definition.
2299
:param name: the name used to refer to the option.
2301
:param override_from_env: A list of environment variables which can
2302
provide override any configuration setting.
2304
:param default: the default value to use when none exist in the config
2305
stores. This is either a string that ``from_unicode`` will convert
2306
into the proper type, a callable returning a unicode string so that
2307
``from_unicode`` can be used on the return value, or a python
2308
object that can be stringified (so only the empty list is supported
2311
:param default_from_env: A list of environment variables which can
2312
provide a default value. 'default' will be used only if none of the
2313
variables specified here are set in the environment.
2315
:param help: a doc string to explain the option to the user.
2317
:param from_unicode: a callable to convert the unicode string
2318
representing the option value in a store. This is not called for
2321
:param invalid: the action to be taken when an invalid value is
2322
encountered in a store. This is called only when from_unicode is
2323
invoked to convert a string and returns None or raise ValueError or
2324
TypeError. Accepted values are: None (ignore invalid values),
2325
'warning' (emit a warning), 'error' (emit an error message and
2328
:param unquote: should the unicode value be unquoted before conversion.
2329
This should be used only when the store providing the values cannot
2330
safely unquote them (see http://pad.lv/906897). It is provided so
2331
daughter classes can handle the quoting themselves.
2333
if override_from_env is None:
2334
override_from_env = []
2335
if default_from_env is None:
2336
default_from_env = []
2338
self.override_from_env = override_from_env
2339
# Convert the default value to a unicode string so all values are
2340
# strings internally before conversion (via from_unicode) is attempted.
2343
elif isinstance(default, list):
2344
# Only the empty list is supported
2346
raise AssertionError(
2347
'Only empty lists are supported as default values')
2349
elif isinstance(default, (str, unicode, bool, int, float)):
2350
# Rely on python to convert strings, booleans and integers
2351
self.default = u'%s' % (default,)
2352
elif callable(default):
2353
self.default = default
2355
# other python objects are not expected
2356
raise AssertionError('%r is not supported as a default value'
2358
self.default_from_env = default_from_env
2360
self.from_unicode = from_unicode
2361
self.unquote = unquote
2362
if invalid and invalid not in ('warning', 'error'):
2363
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2364
self.invalid = invalid
2370
def convert_from_unicode(self, store, unicode_value):
2371
if self.unquote and store is not None and unicode_value is not None:
2372
unicode_value = store.unquote(unicode_value)
2373
if self.from_unicode is None or unicode_value is None:
2374
# Don't convert or nothing to convert
2375
return unicode_value
2377
converted = self.from_unicode(unicode_value)
2378
except (ValueError, TypeError):
2379
# Invalid values are ignored
2381
if converted is None and self.invalid is not None:
2382
# The conversion failed
2383
if self.invalid == 'warning':
2384
trace.warning('Value "%s" is not valid for "%s"',
2385
unicode_value, self.name)
2386
elif self.invalid == 'error':
2387
raise errors.ConfigOptionValueError(self.name, unicode_value)
2390
def get_override(self):
2392
for var in self.override_from_env:
2394
# If the env variable is defined, its value takes precedence
2395
value = os.environ[var].decode(osutils.get_user_encoding())
2401
def get_default(self):
2403
for var in self.default_from_env:
2405
# If the env variable is defined, its value is the default one
2406
value = os.environ[var].decode(osutils.get_user_encoding())
2411
# Otherwise, fallback to the value defined at registration
2412
if callable(self.default):
2413
value = self.default()
2414
if not isinstance(value, unicode):
2415
raise AssertionError(
2416
"Callable default value for '%s' should be unicode"
2419
value = self.default
2422
def get_help_topic(self):
2425
def get_help_text(self, additional_see_also=None, plain=True):
2427
from bzrlib import help_topics
2428
result += help_topics._format_see_also(additional_see_also)
2430
result = help_topics.help_as_plain_text(result)
2434
# Predefined converters to get proper values from store
2436
def bool_from_store(unicode_str):
2437
return ui.bool_from_string(unicode_str)
2440
def int_from_store(unicode_str):
2441
return int(unicode_str)
2444
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2446
def int_SI_from_store(unicode_str):
2447
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2449
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2450
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2453
:return Integer, expanded to its base-10 value if a proper SI unit is
2454
found, None otherwise.
2456
regexp = "^(\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2457
p = re.compile(regexp, re.IGNORECASE)
2458
m = p.match(unicode_str)
2461
val, _, unit = m.groups()
2465
coeff = _unit_suffixes[unit.upper()]
2467
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2472
def float_from_store(unicode_str):
2473
return float(unicode_str)
2476
# Use a an empty dict to initialize an empty configobj avoiding all
2477
# parsing and encoding checks
2478
_list_converter_config = configobj.ConfigObj(
2479
{}, encoding='utf-8', list_values=True, interpolation=False)
2482
class ListOption(Option):
2484
def __init__(self, name, default=None, default_from_env=None,
2485
help=None, invalid=None):
2486
"""A list Option definition.
2488
This overrides the base class so the conversion from a unicode string
2489
can take quoting into account.
2491
super(ListOption, self).__init__(
2492
name, default=default, default_from_env=default_from_env,
2493
from_unicode=self.from_unicode, help=help,
2494
invalid=invalid, unquote=False)
2496
def from_unicode(self, unicode_str):
2497
if not isinstance(unicode_str, basestring):
2499
# Now inject our string directly as unicode. All callers got their
2500
# value from configobj, so values that need to be quoted are already
2502
_list_converter_config.reset()
2503
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2504
maybe_list = _list_converter_config['list']
2505
if isinstance(maybe_list, basestring):
2507
# A single value, most probably the user forgot (or didn't care
2508
# to add) the final ','
2511
# The empty string, convert to empty list
2514
# We rely on ConfigObj providing us with a list already
2519
class RegistryOption(Option):
2520
"""Option for a choice from a registry."""
2522
def __init__(self, name, registry, default_from_env=None,
2523
help=None, invalid=None):
2524
"""A registry based Option definition.
2526
This overrides the base class so the conversion from a unicode string
2527
can take quoting into account.
2529
super(RegistryOption, self).__init__(
2530
name, default=lambda: unicode(registry.default_key),
2531
default_from_env=default_from_env,
2532
from_unicode=self.from_unicode, help=help,
2533
invalid=invalid, unquote=False)
2534
self.registry = registry
2536
def from_unicode(self, unicode_str):
2537
if not isinstance(unicode_str, basestring):
2540
return self.registry.get(unicode_str)
2543
"Invalid value %s for %s."
2544
"See help for a list of possible values." % (unicode_str,
2549
ret = [self._help, "\n\nThe following values are supported:\n"]
2550
for key in self.registry.keys():
2551
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2555
class OptionRegistry(registry.Registry):
2556
"""Register config options by their name.
2558
This overrides ``registry.Registry`` to simplify registration by acquiring
2559
some information from the option object itself.
2562
def register(self, option):
2563
"""Register a new option to its name.
2565
:param option: The option to register. Its name is used as the key.
2567
super(OptionRegistry, self).register(option.name, option,
2570
def register_lazy(self, key, module_name, member_name):
2571
"""Register a new option to be loaded on request.
2573
:param key: the key to request the option later. Since the registration
2574
is lazy, it should be provided and match the option name.
2576
:param module_name: the python path to the module. Such as 'os.path'.
2578
:param member_name: the member of the module to return. If empty or
2579
None, get() will return the module itself.
2581
super(OptionRegistry, self).register_lazy(key,
2582
module_name, member_name)
2584
def get_help(self, key=None):
2585
"""Get the help text associated with the given key"""
2586
option = self.get(key)
2587
the_help = option.help
2588
if callable(the_help):
2589
return the_help(self, key)
2593
option_registry = OptionRegistry()
2596
# Registered options in lexicographical order
2598
option_registry.register(
2599
Option('append_revisions_only',
2600
default=None, from_unicode=bool_from_store, invalid='warning',
2602
Whether to only append revisions to the mainline.
2604
If this is set to true, then it is not possible to change the
2605
existing mainline of the branch.
2607
option_registry.register(
2608
ListOption('acceptable_keys',
2611
List of GPG key patterns which are acceptable for verification.
2613
option_registry.register(
2614
Option('add.maximum_file_size',
2615
default=u'20MB', from_unicode=int_SI_from_store,
2617
Size above which files should be added manually.
2619
Files below this size are added automatically when using ``bzr add`` without
2622
A negative value means disable the size check.
2624
option_registry.register(
2626
default=None, from_unicode=bool_from_store,
2628
Is the branch bound to ``bound_location``.
2630
If set to "True", the branch should act as a checkout, and push each commit to
2631
the bound_location. This option is normally set by ``bind``/``unbind``.
2633
See also: bound_location.
2635
option_registry.register(
2636
Option('bound_location',
2639
The location that commits should go to when acting as a checkout.
2641
This option is normally set by ``bind``.
2645
option_registry.register(
2646
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2648
Whether revisions associated with tags should be fetched.
2650
option_registry.register_lazy(
2651
'bzr.transform.orphan_policy', 'bzrlib.transform', 'opt_transform_orphan')
2652
option_registry.register(
2653
Option('bzr.workingtree.worth_saving_limit', default=10,
2654
from_unicode=int_from_store, invalid='warning',
2656
How many changes before saving the dirstate.
2658
-1 means that we will never rewrite the dirstate file for only
2659
stat-cache changes. Regardless of this setting, we will always rewrite
2660
the dirstate file if a file is added/removed/renamed/etc. This flag only
2661
affects the behavior of updating the dirstate file after we notice that
2662
a file has been touched.
2664
option_registry.register(
2665
Option('bugtracker', default=None,
2667
Default bug tracker to use.
2669
This bug tracker will be used for example when marking bugs
2670
as fixed using ``bzr commit --fixes``, if no explicit
2671
bug tracker was specified.
2673
option_registry.register(
2674
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2675
from_unicode=signature_policy_from_unicode,
2677
GPG checking policy.
2679
Possible values: require, ignore, check-available (default)
2681
this option will control whether bzr will require good gpg
2682
signatures, ignore them, or check them if they are
2685
option_registry.register(
2686
Option('child_submit_format',
2687
help='''The preferred format of submissions to this branch.'''))
2688
option_registry.register(
2689
Option('child_submit_to',
2690
help='''Where submissions to this branch are mailed to.'''))
2691
option_registry.register(
2692
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2693
from_unicode=signing_policy_from_unicode,
2697
Possible values: always, never, when-required (default)
2699
This option controls whether bzr will always create
2700
gpg signatures or not on commits.
2702
option_registry.register(
2703
Option('dirstate.fdatasync', default=True,
2704
from_unicode=bool_from_store,
2706
Flush dirstate changes onto physical disk?
2708
If true (default), working tree metadata changes are flushed through the
2709
OS buffers to physical disk. This is somewhat slower, but means data
2710
should not be lost if the machine crashes. See also repository.fdatasync.
2712
option_registry.register(
2713
ListOption('debug_flags', default=[],
2714
help='Debug flags to activate.'))
2715
option_registry.register(
2716
Option('default_format', default='2a',
2717
help='Format used when creating branches.'))
2718
option_registry.register(
2719
Option('dpush_strict', default=None,
2720
from_unicode=bool_from_store,
2722
The default value for ``dpush --strict``.
2724
If present, defines the ``--strict`` option default value for checking
2725
uncommitted changes before pushing into a different VCS without any
2726
custom bzr metadata.
2728
option_registry.register(
2730
help='The command called to launch an editor to enter a message.'))
2731
option_registry.register(
2732
Option('email', override_from_env=['BZR_EMAIL'], default=default_email,
2733
help='The users identity'))
2734
option_registry.register(
2735
Option('gpg_signing_command',
2738
Program to use use for creating signatures.
2740
This should support at least the -u and --clearsign options.
2742
option_registry.register(
2743
Option('gpg_signing_key',
2746
GPG key to use for signing.
2748
This defaults to the first key associated with the users email.
2750
option_registry.register(
2751
Option('ignore_missing_extensions', default=False,
2752
from_unicode=bool_from_store,
2754
Control the missing extensions warning display.
2756
The warning will not be emitted if set to True.
2758
option_registry.register(
2760
help='Language to translate messages into.'))
2761
option_registry.register(
2762
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2764
Steal locks that appears to be dead.
2766
If set to True, bzr will check if a lock is supposed to be held by an
2767
active process from the same user on the same machine. If the user and
2768
machine match, but no process with the given PID is active, then bzr
2769
will automatically break the stale lock, and create a new lock for
2771
Otherwise, bzr will prompt as normal to break the lock.
2773
option_registry.register(
2774
Option('log_format', default='long',
2776
Log format to use when displaying revisions.
2778
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2779
may be provided by plugins.
2781
option_registry.register_lazy('mail_client', 'bzrlib.mail_client',
2783
option_registry.register(
2784
Option('output_encoding',
2785
help= 'Unicode encoding for output'
2786
' (terminal encoding if not specified).'))
2787
option_registry.register(
2788
Option('parent_location',
2791
The location of the default branch for pull or merge.
2793
This option is normally set when creating a branch, the first ``pull`` or by
2794
``pull --remember``.
2796
option_registry.register(
2797
Option('post_commit', default=None,
2799
Post commit functions.
2801
An ordered list of python functions to call, separated by spaces.
2803
Each function takes branch, rev_id as parameters.
2805
option_registry.register(
2806
Option('public_branch',
2809
A publically-accessible version of this branch.
2811
This implies that the branch setting this option is not publically-accessible.
2812
Used and set by ``bzr send``.
2814
option_registry.register(
2815
Option('push_location',
2818
The location of the default branch for push.
2820
This option is normally set by the first ``push`` or ``push --remember``.
2822
option_registry.register(
2823
Option('push_strict', default=None,
2824
from_unicode=bool_from_store,
2826
The default value for ``push --strict``.
2828
If present, defines the ``--strict`` option default value for checking
2829
uncommitted changes before sending a merge directive.
2831
option_registry.register(
2832
Option('repository.fdatasync', default=True,
2833
from_unicode=bool_from_store,
2835
Flush repository changes onto physical disk?
2837
If true (default), repository changes are flushed through the OS buffers
2838
to physical disk. This is somewhat slower, but means data should not be
2839
lost if the machine crashes. See also dirstate.fdatasync.
2841
option_registry.register_lazy('smtp_server',
2842
'bzrlib.smtp_connection', 'smtp_server')
2843
option_registry.register_lazy('smtp_password',
2844
'bzrlib.smtp_connection', 'smtp_password')
2845
option_registry.register_lazy('smtp_username',
2846
'bzrlib.smtp_connection', 'smtp_username')
2847
option_registry.register(
2848
Option('selftest.timeout',
2850
from_unicode=int_from_store,
2851
help='Abort selftest if one test takes longer than this many seconds',
2854
option_registry.register(
2855
Option('send_strict', default=None,
2856
from_unicode=bool_from_store,
2858
The default value for ``send --strict``.
2860
If present, defines the ``--strict`` option default value for checking
2861
uncommitted changes before sending a bundle.
2864
option_registry.register(
2865
Option('serve.client_timeout',
2866
default=300.0, from_unicode=float_from_store,
2867
help="If we wait for a new request from a client for more than"
2868
" X seconds, consider the client idle, and hangup."))
2869
option_registry.register(
2870
Option('stacked_on_location',
2872
help="""The location where this branch is stacked on."""))
2873
option_registry.register(
2874
Option('submit_branch',
2877
The branch you intend to submit your current work to.
2879
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2880
by the ``submit:`` revision spec.
2882
option_registry.register(
2884
help='''Where submissions from this branch are mailed to.'''))
2885
option_registry.register(
2886
ListOption('suppress_warnings',
2888
help="List of warning classes to suppress."))
2889
option_registry.register(
2890
Option('validate_signatures_in_log', default=False,
2891
from_unicode=bool_from_store, invalid='warning',
2892
help='''Whether to validate signatures in bzr log.'''))
2893
option_registry.register_lazy('ssl.ca_certs',
2894
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_ca_certs')
2896
option_registry.register_lazy('ssl.cert_reqs',
2897
'bzrlib.transport.http._urllib2_wrappers', 'opt_ssl_cert_reqs')
2900
class Section(object):
2901
"""A section defines a dict of option name => value.
2903
This is merely a read-only dict which can add some knowledge about the
2904
options. It is *not* a python dict object though and doesn't try to mimic
2908
def __init__(self, section_id, options):
2909
self.id = section_id
2910
# We re-use the dict-like object received
2911
self.options = options
2913
def get(self, name, default=None, expand=True):
2914
return self.options.get(name, default)
2916
def iter_option_names(self):
2917
for k in self.options.iterkeys():
2921
# Mostly for debugging use
2922
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2925
_NewlyCreatedOption = object()
2926
"""Was the option created during the MutableSection lifetime"""
2927
_DeletedOption = object()
2928
"""Was the option deleted during the MutableSection lifetime"""
2931
class MutableSection(Section):
2932
"""A section allowing changes and keeping track of the original values."""
2934
def __init__(self, section_id, options):
2935
super(MutableSection, self).__init__(section_id, options)
2936
self.reset_changes()
2938
def set(self, name, value):
2939
if name not in self.options:
2940
# This is a new option
2941
self.orig[name] = _NewlyCreatedOption
2942
elif name not in self.orig:
2943
self.orig[name] = self.get(name, None)
2944
self.options[name] = value
2946
def remove(self, name):
2947
if name not in self.orig:
2948
self.orig[name] = self.get(name, None)
2949
del self.options[name]
2951
def reset_changes(self):
2954
def apply_changes(self, dirty, store):
2955
"""Apply option value changes.
2957
``self`` has been reloaded from the persistent storage. ``dirty``
2958
contains the changes made since the previous loading.
2960
:param dirty: the mutable section containing the changes.
2962
:param store: the store containing the section
2964
for k, expected in dirty.orig.iteritems():
2965
actual = dirty.get(k, _DeletedOption)
2966
reloaded = self.get(k, _NewlyCreatedOption)
2967
if actual is _DeletedOption:
2968
if k in self.options:
2972
# Report concurrent updates in an ad-hoc way. This should only
2973
# occurs when different processes try to update the same option
2974
# which is not supported (as in: the config framework is not meant
2975
# to be used as a sharing mechanism).
2976
if expected != reloaded:
2977
if actual is _DeletedOption:
2978
actual = '<DELETED>'
2979
if reloaded is _NewlyCreatedOption:
2980
reloaded = '<CREATED>'
2981
if expected is _NewlyCreatedOption:
2982
expected = '<CREATED>'
2983
# Someone changed the value since we get it from the persistent
2985
trace.warning(gettext(
2986
"Option {0} in section {1} of {2} was changed"
2987
" from {3} to {4}. The {5} value will be saved.".format(
2988
k, self.id, store.external_url(), expected,
2990
# No need to keep track of these changes
2991
self.reset_changes()
2994
class Store(object):
2995
"""Abstract interface to persistent storage for configuration options."""
2997
readonly_section_class = Section
2998
mutable_section_class = MutableSection
3001
# Which sections need to be saved (by section id). We use a dict here
3002
# so the dirty sections can be shared by multiple callers.
3003
self.dirty_sections = {}
3005
def is_loaded(self):
3006
"""Returns True if the Store has been loaded.
3008
This is used to implement lazy loading and ensure the persistent
3009
storage is queried only when needed.
3011
raise NotImplementedError(self.is_loaded)
3014
"""Loads the Store from persistent storage."""
3015
raise NotImplementedError(self.load)
3017
def _load_from_string(self, bytes):
3018
"""Create a store from a string in configobj syntax.
3020
:param bytes: A string representing the file content.
3022
raise NotImplementedError(self._load_from_string)
3025
"""Unloads the Store.
3027
This should make is_loaded() return False. This is used when the caller
3028
knows that the persistent storage has changed or may have change since
3031
raise NotImplementedError(self.unload)
3033
def quote(self, value):
3034
"""Quote a configuration option value for storing purposes.
3036
This allows Stacks to present values as they will be stored.
3040
def unquote(self, value):
3041
"""Unquote a configuration option value into unicode.
3043
The received value is quoted as stored.
3048
"""Saves the Store to persistent storage."""
3049
raise NotImplementedError(self.save)
3051
def _need_saving(self):
3052
for s in self.dirty_sections.values():
3054
# At least one dirty section contains a modification
3058
def apply_changes(self, dirty_sections):
3059
"""Apply changes from dirty sections while checking for coherency.
3061
The Store content is discarded and reloaded from persistent storage to
3062
acquire up-to-date values.
3064
Dirty sections are MutableSection which kept track of the value they
3065
are expected to update.
3067
# We need an up-to-date version from the persistent storage, unload the
3068
# store. The reload will occur when needed (triggered by the first
3069
# get_mutable_section() call below.
3071
# Apply the changes from the preserved dirty sections
3072
for section_id, dirty in dirty_sections.iteritems():
3073
clean = self.get_mutable_section(section_id)
3074
clean.apply_changes(dirty, self)
3075
# Everything is clean now
3076
self.dirty_sections = {}
3078
def save_changes(self):
3079
"""Saves the Store to persistent storage if changes occurred.
3081
Apply the changes recorded in the mutable sections to a store content
3082
refreshed from persistent storage.
3084
raise NotImplementedError(self.save_changes)
3086
def external_url(self):
3087
raise NotImplementedError(self.external_url)
3089
def get_sections(self):
3090
"""Returns an ordered iterable of existing sections.
3092
:returns: An iterable of (store, section).
3094
raise NotImplementedError(self.get_sections)
3096
def get_mutable_section(self, section_id=None):
3097
"""Returns the specified mutable section.
3099
:param section_id: The section identifier
3101
raise NotImplementedError(self.get_mutable_section)
3104
# Mostly for debugging use
3105
return "<config.%s(%s)>" % (self.__class__.__name__,
3106
self.external_url())
3109
class CommandLineStore(Store):
3110
"A store to carry command line overrides for the config options."""
3112
def __init__(self, opts=None):
3113
super(CommandLineStore, self).__init__()
3120
# The dict should be cleared but not replaced so it can be shared.
3121
self.options.clear()
3123
def _from_cmdline(self, overrides):
3124
# Reset before accepting new definitions
3126
for over in overrides:
3128
name, value = over.split('=', 1)
3130
raise errors.BzrCommandError(
3131
gettext("Invalid '%s', should be of the form 'name=value'")
3133
self.options[name] = value
3135
def external_url(self):
3136
# Not an url but it makes debugging easier and is never needed
3140
def get_sections(self):
3141
yield self, self.readonly_section_class(None, self.options)
3144
class IniFileStore(Store):
3145
"""A config Store using ConfigObj for storage.
3147
:ivar _config_obj: Private member to hold the ConfigObj instance used to
3148
serialize/deserialize the config file.
3152
"""A config Store using ConfigObj for storage.
3154
super(IniFileStore, self).__init__()
3155
self._config_obj = None
3157
def is_loaded(self):
3158
return self._config_obj != None
3161
self._config_obj = None
3162
self.dirty_sections = {}
3164
def _load_content(self):
3165
"""Load the config file bytes.
3167
This should be provided by subclasses
3169
:return: Byte string
3171
raise NotImplementedError(self._load_content)
3173
def _save_content(self, content):
3174
"""Save the config file bytes.
3176
This should be provided by subclasses
3178
:param content: Config file bytes to write
3180
raise NotImplementedError(self._save_content)
3183
"""Load the store from the associated file."""
3184
if self.is_loaded():
3186
content = self._load_content()
3187
self._load_from_string(content)
3188
for hook in ConfigHooks['load']:
3191
def _load_from_string(self, bytes):
3192
"""Create a config store from a string.
3194
:param bytes: A string representing the file content.
3196
if self.is_loaded():
3197
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3198
co_input = StringIO(bytes)
3200
# The config files are always stored utf8-encoded
3201
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3203
except configobj.ConfigObjError, e:
3204
self._config_obj = None
3205
raise errors.ParseConfigError(e.errors, self.external_url())
3206
except UnicodeDecodeError:
3207
raise errors.ConfigContentError(self.external_url())
3209
def save_changes(self):
3210
if not self.is_loaded():
3213
if not self._need_saving():
3215
# Preserve the current version
3216
dirty_sections = dict(self.dirty_sections.items())
3217
self.apply_changes(dirty_sections)
3218
# Save to the persistent storage
3222
if not self.is_loaded():
3226
self._config_obj.write(out)
3227
self._save_content(out.getvalue())
3228
for hook in ConfigHooks['save']:
3231
def get_sections(self):
3232
"""Get the configobj section in the file order.
3234
:returns: An iterable of (store, section).
3236
# We need a loaded store
3239
except (errors.NoSuchFile, errors.PermissionDenied):
3240
# If the file can't be read, there is no sections
3242
cobj = self._config_obj
3244
yield self, self.readonly_section_class(None, cobj)
3245
for section_name in cobj.sections:
3247
self.readonly_section_class(section_name,
3248
cobj[section_name]))
3250
def get_mutable_section(self, section_id=None):
3251
# We need a loaded store
3254
except errors.NoSuchFile:
3255
# The file doesn't exist, let's pretend it was empty
3256
self._load_from_string('')
3257
if section_id in self.dirty_sections:
3258
# We already created a mutable section for this id
3259
return self.dirty_sections[section_id]
3260
if section_id is None:
3261
section = self._config_obj
3263
section = self._config_obj.setdefault(section_id, {})
3264
mutable_section = self.mutable_section_class(section_id, section)
3265
# All mutable sections can become dirty
3266
self.dirty_sections[section_id] = mutable_section
3267
return mutable_section
3269
def quote(self, value):
3271
# configobj conflates automagical list values and quoting
3272
self._config_obj.list_values = True
3273
return self._config_obj._quote(value)
3275
self._config_obj.list_values = False
3277
def unquote(self, value):
3278
if value and isinstance(value, basestring):
3279
# _unquote doesn't handle None nor empty strings nor anything that
3280
# is not a string, really.
3281
value = self._config_obj._unquote(value)
3284
def external_url(self):
3285
# Since an IniFileStore can be used without a file (at least in tests),
3286
# it's better to provide something than raising a NotImplementedError.
3287
# All daughter classes are supposed to provide an implementation
3289
return 'In-Process Store, no URL'
3292
class TransportIniFileStore(IniFileStore):
3293
"""IniFileStore that loads files from a transport.
3295
:ivar transport: The transport object where the config file is located.
3297
:ivar file_name: The config file basename in the transport directory.
3300
def __init__(self, transport, file_name):
3301
"""A Store using a ini file on a Transport
3303
:param transport: The transport object where the config file is located.
3304
:param file_name: The config file basename in the transport directory.
3306
super(TransportIniFileStore, self).__init__()
3307
self.transport = transport
3308
self.file_name = file_name
3310
def _load_content(self):
3312
return self.transport.get_bytes(self.file_name)
3313
except errors.PermissionDenied:
3314
trace.warning("Permission denied while trying to load "
3315
"configuration store %s.", self.external_url())
3318
def _save_content(self, content):
3319
self.transport.put_bytes(self.file_name, content)
3321
def external_url(self):
3322
# FIXME: external_url should really accepts an optional relpath
3323
# parameter (bug #750169) :-/ -- vila 2011-04-04
3324
# The following will do in the interim but maybe we don't want to
3325
# expose a path here but rather a config ID and its associated
3326
# object </hand wawe>.
3327
return urlutils.join(self.transport.external_url(), self.file_name)
3330
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3331
# unlockable stores for use with objects that can already ensure the locking
3332
# (think branches). If different stores (not based on ConfigObj) are created,
3333
# they may face the same issue.
3336
class LockableIniFileStore(TransportIniFileStore):
3337
"""A ConfigObjStore using locks on save to ensure store integrity."""
3339
def __init__(self, transport, file_name, lock_dir_name=None):
3340
"""A config Store using ConfigObj for storage.
3342
:param transport: The transport object where the config file is located.
3344
:param file_name: The config file basename in the transport directory.
3346
if lock_dir_name is None:
3347
lock_dir_name = 'lock'
3348
self.lock_dir_name = lock_dir_name
3349
super(LockableIniFileStore, self).__init__(transport, file_name)
3350
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3352
def lock_write(self, token=None):
3353
"""Takes a write lock in the directory containing the config file.
3355
If the directory doesn't exist it is created.
3357
# FIXME: This doesn't check the ownership of the created directories as
3358
# ensure_config_dir_exists does. It should if the transport is local
3359
# -- vila 2011-04-06
3360
self.transport.create_prefix()
3361
return self._lock.lock_write(token)
3366
def break_lock(self):
3367
self._lock.break_lock()
3371
# We need to be able to override the undecorated implementation
3372
self.save_without_locking()
3374
def save_without_locking(self):
3375
super(LockableIniFileStore, self).save()
3378
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3379
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3380
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3382
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3383
# functions or a registry will make it easier and clearer for tests, focusing
3384
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3385
# on a poolie's remark)
3386
class GlobalStore(LockableIniFileStore):
3387
"""A config store for global options.
3389
There is a single GlobalStore for a given process.
3392
def __init__(self, possible_transports=None):
3393
t = transport.get_transport_from_path(
3394
config_dir(), possible_transports=possible_transports)
3395
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3399
class LocationStore(LockableIniFileStore):
3400
"""A config store for global options.
3402
There is a single GlobalStore for a given process.
3405
def __init__(self, possible_transports=None):
3406
t = transport.get_transport_from_path(
3407
config_dir(), possible_transports=possible_transports)
3408
super(LocationStore, self).__init__(t, 'locations.conf')
3409
self.id = 'locations'
3412
class BranchStore(TransportIniFileStore):
3413
"""A config store for branch options.
3415
There is a single BranchStore for a given branch.
3418
def __init__(self, branch):
3419
super(BranchStore, self).__init__(branch.control_transport,
3421
self.branch = branch
3425
class ControlStore(LockableIniFileStore):
3427
def __init__(self, bzrdir):
3428
super(ControlStore, self).__init__(bzrdir.transport,
3430
lock_dir_name='branch_lock')
3434
class SectionMatcher(object):
3435
"""Select sections into a given Store.
3437
This is intended to be used to postpone getting an iterable of sections
3441
def __init__(self, store):
3444
def get_sections(self):
3445
# This is where we require loading the store so we can see all defined
3447
sections = self.store.get_sections()
3448
# Walk the revisions in the order provided
3449
for store, s in sections:
3453
def match(self, section):
3454
"""Does the proposed section match.
3456
:param section: A Section object.
3458
:returns: True if the section matches, False otherwise.
3460
raise NotImplementedError(self.match)
3463
class NameMatcher(SectionMatcher):
3465
def __init__(self, store, section_id):
3466
super(NameMatcher, self).__init__(store)
3467
self.section_id = section_id
3469
def match(self, section):
3470
return section.id == self.section_id
3473
class LocationSection(Section):
3475
def __init__(self, section, extra_path, branch_name=None):
3476
super(LocationSection, self).__init__(section.id, section.options)
3477
self.extra_path = extra_path
3478
if branch_name is None:
3480
self.locals = {'relpath': extra_path,
3481
'basename': urlutils.basename(extra_path),
3482
'branchname': branch_name}
3484
def get(self, name, default=None, expand=True):
3485
value = super(LocationSection, self).get(name, default)
3486
if value is not None and expand:
3487
policy_name = self.get(name + ':policy', None)
3488
policy = _policy_value.get(policy_name, POLICY_NONE)
3489
if policy == POLICY_APPENDPATH:
3490
value = urlutils.join(value, self.extra_path)
3491
# expand section local options right now (since POLICY_APPENDPATH
3492
# will never add options references, it's ok to expand after it).
3494
for is_ref, chunk in iter_option_refs(value):
3496
chunks.append(chunk)
3499
if ref in self.locals:
3500
chunks.append(self.locals[ref])
3502
chunks.append(chunk)
3503
value = ''.join(chunks)
3507
class StartingPathMatcher(SectionMatcher):
3508
"""Select sections for a given location respecting the Store order."""
3510
# FIXME: Both local paths and urls can be used for section names as well as
3511
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3512
# inherited the fuzziness from the previous ``LocationConfig``
3513
# implementation. We probably need to revisit which encoding is allowed for
3514
# both ``location`` and section names and how we normalize
3515
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3516
# related too. -- vila 2012-01-04
3518
def __init__(self, store, location):
3519
super(StartingPathMatcher, self).__init__(store)
3520
if location.startswith('file://'):
3521
location = urlutils.local_path_from_url(location)
3522
self.location = location
3524
def get_sections(self):
3525
"""Get all sections matching ``location`` in the store.
3527
The most generic sections are described first in the store, then more
3528
specific ones can be provided for reduced scopes.
3530
The returned section are therefore returned in the reversed order so
3531
the most specific ones can be found first.
3533
location_parts = self.location.rstrip('/').split('/')
3536
# Later sections are more specific, they should be returned first
3537
for _, section in reversed(list(store.get_sections())):
3538
if section.id is None:
3539
# The no-name section is always included if present
3540
yield store, LocationSection(section, self.location)
3542
section_path = section.id
3543
if section_path.startswith('file://'):
3544
# the location is already a local path or URL, convert the
3545
# section id to the same format
3546
section_path = urlutils.local_path_from_url(section_path)
3547
if (self.location.startswith(section_path)
3548
or fnmatch.fnmatch(self.location, section_path)):
3549
section_parts = section_path.rstrip('/').split('/')
3550
extra_path = '/'.join(location_parts[len(section_parts):])
3551
yield store, LocationSection(section, extra_path)
3554
class LocationMatcher(SectionMatcher):
3556
def __init__(self, store, location):
3557
super(LocationMatcher, self).__init__(store)
3558
url, params = urlutils.split_segment_parameters(location)
3559
if location.startswith('file://'):
3560
location = urlutils.local_path_from_url(location)
3561
self.location = location
3562
branch_name = params.get('branch')
3563
if branch_name is None:
3564
self.branch_name = urlutils.basename(self.location)
3566
self.branch_name = urlutils.unescape(branch_name)
3568
def _get_matching_sections(self):
3569
"""Get all sections matching ``location``."""
3570
# We slightly diverge from LocalConfig here by allowing the no-name
3571
# section as the most generic one and the lower priority.
3572
no_name_section = None
3574
# Filter out the no_name_section so _iter_for_location_by_parts can be
3575
# used (it assumes all sections have a name).
3576
for _, section in self.store.get_sections():
3577
if section.id is None:
3578
no_name_section = section
3580
all_sections.append(section)
3581
# Unfortunately _iter_for_location_by_parts deals with section names so
3582
# we have to resync.
3583
filtered_sections = _iter_for_location_by_parts(
3584
[s.id for s in all_sections], self.location)
3585
iter_all_sections = iter(all_sections)
3586
matching_sections = []
3587
if no_name_section is not None:
3588
matching_sections.append(
3589
(0, LocationSection(no_name_section, self.location)))
3590
for section_id, extra_path, length in filtered_sections:
3591
# a section id is unique for a given store so it's safe to take the
3592
# first matching section while iterating. Also, all filtered
3593
# sections are part of 'all_sections' and will always be found
3596
section = iter_all_sections.next()
3597
if section_id == section.id:
3598
section = LocationSection(section, extra_path,
3600
matching_sections.append((length, section))
3602
return matching_sections
3604
def get_sections(self):
3605
# Override the default implementation as we want to change the order
3606
matching_sections = self._get_matching_sections()
3607
# We want the longest (aka more specific) locations first
3608
sections = sorted(matching_sections,
3609
key=lambda (length, section): (length, section.id),
3611
# Sections mentioning 'ignore_parents' restrict the selection
3612
for _, section in sections:
3613
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3614
ignore = section.get('ignore_parents', None)
3615
if ignore is not None:
3616
ignore = ui.bool_from_string(ignore)
3619
# Finally, we have a valid section
3620
yield self.store, section
3623
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3624
"""Describes an expandable option reference.
3626
We want to match the most embedded reference first.
3628
I.e. for '{{foo}}' we will get '{foo}',
3629
for '{bar{baz}}' we will get '{baz}'
3632
def iter_option_refs(string):
3633
# Split isolate refs so every other chunk is a ref
3635
for chunk in _option_ref_re.split(string):
3639
# FIXME: _shared_stores should be an attribute of a library state once a
3640
# library_state object is always available.
3642
_shared_stores_at_exit_installed = False
3644
class Stack(object):
3645
"""A stack of configurations where an option can be defined"""
3647
def __init__(self, sections_def, store=None, mutable_section_id=None):
3648
"""Creates a stack of sections with an optional store for changes.
3650
:param sections_def: A list of Section or callables that returns an
3651
iterable of Section. This defines the Sections for the Stack and
3652
can be called repeatedly if needed.
3654
:param store: The optional Store where modifications will be
3655
recorded. If none is specified, no modifications can be done.
3657
:param mutable_section_id: The id of the MutableSection where changes
3658
are recorded. This requires the ``store`` parameter to be
3661
self.sections_def = sections_def
3663
self.mutable_section_id = mutable_section_id
3665
def iter_sections(self):
3666
"""Iterate all the defined sections."""
3667
# Ensuring lazy loading is achieved by delaying section matching (which
3668
# implies querying the persistent storage) until it can't be avoided
3669
# anymore by using callables to describe (possibly empty) section
3671
for sections in self.sections_def:
3672
for store, section in sections():
3673
yield store, section
3675
def get(self, name, expand=True, convert=True):
3676
"""Return the *first* option value found in the sections.
3678
This is where we guarantee that sections coming from Store are loaded
3679
lazily: the loading is delayed until we need to either check that an
3680
option exists or get its value, which in turn may require to discover
3681
in which sections it can be defined. Both of these (section and option
3682
existence) require loading the store (even partially).
3684
:param name: The queried option.
3686
:param expand: Whether options references should be expanded.
3688
:param convert: Whether the option value should be converted from
3689
unicode (do nothing for non-registered options).
3691
:returns: The value of the option.
3693
# FIXME: No caching of options nor sections yet -- vila 20110503
3695
found_store = None # Where the option value has been found
3696
# If the option is registered, it may provide additional info about
3699
opt = option_registry.get(name)
3704
def expand_and_convert(val):
3705
# This may need to be called in different contexts if the value is
3706
# None or ends up being None during expansion or conversion.
3709
if isinstance(val, basestring):
3710
val = self._expand_options_in_string(val)
3712
trace.warning('Cannot expand "%s":'
3713
' %s does not support option expansion'
3714
% (name, type(val)))
3716
val = found_store.unquote(val)
3718
val = opt.convert_from_unicode(found_store, val)
3721
# First of all, check if the environment can override the configuration
3723
if opt is not None and opt.override_from_env:
3724
value = opt.get_override()
3725
value = expand_and_convert(value)
3727
for store, section in self.iter_sections():
3728
value = section.get(name)
3729
if value is not None:
3732
value = expand_and_convert(value)
3733
if opt is not None and value is None:
3734
# If the option is registered, it may provide a default value
3735
value = opt.get_default()
3736
value = expand_and_convert(value)
3737
for hook in ConfigHooks['get']:
3738
hook(self, name, value)
3741
def expand_options(self, string, env=None):
3742
"""Expand option references in the string in the configuration context.
3744
:param string: The string containing option(s) to expand.
3746
:param env: An option dict defining additional configuration options or
3747
overriding existing ones.
3749
:returns: The expanded string.
3751
return self._expand_options_in_string(string, env)
3753
def _expand_options_in_string(self, string, env=None, _refs=None):
3754
"""Expand options in the string in the configuration context.
3756
:param string: The string to be expanded.
3758
:param env: An option dict defining additional configuration options or
3759
overriding existing ones.
3761
:param _refs: Private list (FIFO) containing the options being expanded
3764
:returns: The expanded string.
3767
# Not much to expand there
3770
# What references are currently resolved (to detect loops)
3773
# We need to iterate until no more refs appear ({{foo}} will need two
3774
# iterations for example).
3779
for is_ref, chunk in iter_option_refs(result):
3781
chunks.append(chunk)
3786
raise errors.OptionExpansionLoop(string, _refs)
3788
value = self._expand_option(name, env, _refs)
3790
raise errors.ExpandingUnknownOption(name, string)
3791
chunks.append(value)
3793
result = ''.join(chunks)
3796
def _expand_option(self, name, env, _refs):
3797
if env is not None and name in env:
3798
# Special case, values provided in env takes precedence over
3802
value = self.get(name, expand=False, convert=False)
3803
value = self._expand_options_in_string(value, env, _refs)
3806
def _get_mutable_section(self):
3807
"""Get the MutableSection for the Stack.
3809
This is where we guarantee that the mutable section is lazily loaded:
3810
this means we won't load the corresponding store before setting a value
3811
or deleting an option. In practice the store will often be loaded but
3812
this helps catching some programming errors.
3815
section = store.get_mutable_section(self.mutable_section_id)
3816
return store, section
3818
def set(self, name, value):
3819
"""Set a new value for the option."""
3820
store, section = self._get_mutable_section()
3821
section.set(name, store.quote(value))
3822
for hook in ConfigHooks['set']:
3823
hook(self, name, value)
3825
def remove(self, name):
3826
"""Remove an existing option."""
3827
_, section = self._get_mutable_section()
3828
section.remove(name)
3829
for hook in ConfigHooks['remove']:
3833
# Mostly for debugging use
3834
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3836
def _get_overrides(self):
3837
# FIXME: Hack around library_state.initialize never called
3838
if bzrlib.global_state is not None:
3839
return bzrlib.global_state.cmdline_overrides.get_sections()
3842
def get_shared_store(self, store, state=None):
3843
"""Get a known shared store.
3845
Store urls uniquely identify them and are used to ensure a single copy
3846
is shared across all users.
3848
:param store: The store known to the caller.
3850
:param state: The library state where the known stores are kept.
3852
:returns: The store received if it's not a known one, an already known
3856
state = bzrlib.global_state
3858
global _shared_stores_at_exit_installed
3859
stores = _shared_stores
3860
def save_config_changes():
3861
for k, store in stores.iteritems():
3862
store.save_changes()
3863
if not _shared_stores_at_exit_installed:
3864
# FIXME: Ugly hack waiting for library_state to always be
3865
# available. -- vila 20120731
3867
atexit.register(save_config_changes)
3868
_shared_stores_at_exit_installed = True
3870
stores = state.config_stores
3871
url = store.external_url()
3879
class MemoryStack(Stack):
3880
"""A configuration stack defined from a string.
3882
This is mainly intended for tests and requires no disk resources.
3885
def __init__(self, content=None):
3886
"""Create an in-memory stack from a given content.
3888
It uses a single store based on configobj and support reading and
3891
:param content: The initial content of the store. If None, the store is
3892
not loaded and ``_load_from_string`` can and should be used if
3895
store = IniFileStore()
3896
if content is not None:
3897
store._load_from_string(content)
3898
super(MemoryStack, self).__init__(
3899
[store.get_sections], store)
3902
class _CompatibleStack(Stack):
3903
"""Place holder for compatibility with previous design.
3905
This is intended to ease the transition from the Config-based design to the
3906
Stack-based design and should not be used nor relied upon by plugins.
3908
One assumption made here is that the daughter classes will all use Stores
3909
derived from LockableIniFileStore).
3911
It implements set() and remove () by re-loading the store before applying
3912
the modification and saving it.
3914
The long term plan being to implement a single write by store to save
3915
all modifications, this class should not be used in the interim.
3918
def set(self, name, value):
3921
super(_CompatibleStack, self).set(name, value)
3922
# Force a write to persistent storage
3925
def remove(self, name):
3928
super(_CompatibleStack, self).remove(name)
3929
# Force a write to persistent storage
3933
class GlobalStack(Stack):
3934
"""Global options only stack.
3936
The following sections are queried:
3938
* command-line overrides,
3940
* the 'DEFAULT' section in bazaar.conf
3942
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3947
gstore = self.get_shared_store(GlobalStore())
3948
super(GlobalStack, self).__init__(
3949
[self._get_overrides,
3950
NameMatcher(gstore, 'DEFAULT').get_sections],
3951
gstore, mutable_section_id='DEFAULT')
3954
class LocationStack(Stack):
3955
"""Per-location options falling back to global options stack.
3958
The following sections are queried:
3960
* command-line overrides,
3962
* the sections matching ``location`` in ``locations.conf``, the order being
3963
defined by the number of path components in the section glob, higher
3964
numbers first (from most specific section to most generic).
3966
* the 'DEFAULT' section in bazaar.conf
3968
This stack will use the ``location`` section in locations.conf as its
3972
def __init__(self, location):
3973
"""Make a new stack for a location and global configuration.
3975
:param location: A URL prefix to """
3976
lstore = self.get_shared_store(LocationStore())
3977
if location.startswith('file://'):
3978
location = urlutils.local_path_from_url(location)
3979
gstore = self.get_shared_store(GlobalStore())
3980
super(LocationStack, self).__init__(
3981
[self._get_overrides,
3982
LocationMatcher(lstore, location).get_sections,
3983
NameMatcher(gstore, 'DEFAULT').get_sections],
3984
lstore, mutable_section_id=location)
3987
class BranchStack(Stack):
3988
"""Per-location options falling back to branch then global options stack.
3990
The following sections are queried:
3992
* command-line overrides,
3994
* the sections matching ``location`` in ``locations.conf``, the order being
3995
defined by the number of path components in the section glob, higher
3996
numbers first (from most specific section to most generic),
3998
* the no-name section in branch.conf,
4000
* the ``DEFAULT`` section in ``bazaar.conf``.
4002
This stack will use the no-name section in ``branch.conf`` as its
4006
def __init__(self, branch):
4007
lstore = self.get_shared_store(LocationStore())
4008
bstore = branch._get_config_store()
4009
gstore = self.get_shared_store(GlobalStore())
4010
super(BranchStack, self).__init__(
4011
[self._get_overrides,
4012
LocationMatcher(lstore, branch.base).get_sections,
4013
NameMatcher(bstore, None).get_sections,
4014
NameMatcher(gstore, 'DEFAULT').get_sections],
4016
self.branch = branch
4018
def lock_write(self, token=None):
4019
return self.branch.lock_write(token)
4022
return self.branch.unlock()
4025
def set(self, name, value):
4026
super(BranchStack, self).set(name, value)
4027
# Unlocking the branch will trigger a store.save_changes() so the last
4028
# unlock saves all the changes.
4031
def remove(self, name):
4032
super(BranchStack, self).remove(name)
4033
# Unlocking the branch will trigger a store.save_changes() so the last
4034
# unlock saves all the changes.
4037
class RemoteControlStack(Stack):
4038
"""Remote control-only options stack."""
4040
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
4041
# with the stack used for remote bzr dirs. RemoteControlStack only uses
4042
# control.conf and is used only for stack options.
4044
def __init__(self, bzrdir):
4045
cstore = bzrdir._get_config_store()
4046
super(RemoteControlStack, self).__init__(
4047
[NameMatcher(cstore, None).get_sections],
4049
self.bzrdir = bzrdir
4052
class BranchOnlyStack(Stack):
4053
"""Branch-only options stack."""
4055
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
4056
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
4057
# -- vila 2011-12-16
4059
def __init__(self, branch):
4060
bstore = branch._get_config_store()
4061
super(BranchOnlyStack, self).__init__(
4062
[NameMatcher(bstore, None).get_sections],
4064
self.branch = branch
4066
def lock_write(self, token=None):
4067
return self.branch.lock_write(token)
4070
return self.branch.unlock()
4073
def set(self, name, value):
4074
super(BranchOnlyStack, self).set(name, value)
4075
# Force a write to persistent storage
4076
self.store.save_changes()
4079
def remove(self, name):
4080
super(BranchOnlyStack, self).remove(name)
4081
# Force a write to persistent storage
4082
self.store.save_changes()
4085
class cmd_config(commands.Command):
4086
__doc__ = """Display, set or remove a configuration option.
4088
Display the active value for a given option.
4090
If --all is specified, NAME is interpreted as a regular expression and all
4091
matching options are displayed mentioning their scope. The active value
4092
that bzr will take into account is the first one displayed for each option.
4094
If no NAME is given, --all .* is implied.
4096
Setting a value is achieved by using name=value without spaces. The value
4097
is set in the most relevant scope and can be checked by displaying the
4101
takes_args = ['name?']
4105
# FIXME: This should be a registry option so that plugins can register
4106
# their own config files (or not) and will also address
4107
# http://pad.lv/788991 -- vila 20101115
4108
commands.Option('scope', help='Reduce the scope to the specified'
4109
' configuration file.',
4111
commands.Option('all',
4112
help='Display all the defined values for the matching options.',
4114
commands.Option('remove', help='Remove the option from'
4115
' the configuration file.'),
4118
_see_also = ['configuration']
4120
@commands.display_command
4121
def run(self, name=None, all=False, directory=None, scope=None,
4123
if directory is None:
4125
directory = directory_service.directories.dereference(directory)
4126
directory = urlutils.normalize_url(directory)
4128
raise errors.BzrError(
4129
'--all and --remove are mutually exclusive.')
4131
# Delete the option in the given scope
4132
self._remove_config_option(name, directory, scope)
4134
# Defaults to all options
4135
self._show_matching_options('.*', directory, scope)
4138
name, value = name.split('=', 1)
4140
# Display the option(s) value(s)
4142
self._show_matching_options(name, directory, scope)
4144
self._show_value(name, directory, scope)
4147
raise errors.BzrError(
4148
'Only one option can be set.')
4149
# Set the option value
4150
self._set_config_option(name, value, directory, scope)
4152
def _get_stack(self, directory, scope=None, write_access=False):
4153
"""Get the configuration stack specified by ``directory`` and ``scope``.
4155
:param directory: Where the configurations are derived from.
4157
:param scope: A specific config to start from.
4159
:param write_access: Whether a write access to the stack will be
4162
# FIXME: scope should allow access to plugin-specific stacks (even
4163
# reduced to the plugin-specific store), related to
4164
# http://pad.lv/788991 -- vila 2011-11-15
4165
if scope is not None:
4166
if scope == 'bazaar':
4167
return GlobalStack()
4168
elif scope == 'locations':
4169
return LocationStack(directory)
4170
elif scope == 'branch':
4172
controldir.ControlDir.open_containing_tree_or_branch(
4175
self.add_cleanup(br.lock_write().unlock)
4176
return br.get_config_stack()
4177
raise errors.NoSuchConfig(scope)
4181
controldir.ControlDir.open_containing_tree_or_branch(
4184
self.add_cleanup(br.lock_write().unlock)
4185
return br.get_config_stack()
4186
except errors.NotBranchError:
4187
return LocationStack(directory)
4189
def _quote_multiline(self, value):
4191
value = '"""' + value + '"""'
4194
def _show_value(self, name, directory, scope):
4195
conf = self._get_stack(directory, scope)
4196
value = conf.get(name, expand=True, convert=False)
4197
if value is not None:
4198
# Quote the value appropriately
4199
value = self._quote_multiline(value)
4200
self.outf.write('%s\n' % (value,))
4202
raise errors.NoSuchConfigOption(name)
4204
def _show_matching_options(self, name, directory, scope):
4205
name = lazy_regex.lazy_compile(name)
4206
# We want any error in the regexp to be raised *now* so we need to
4207
# avoid the delay introduced by the lazy regexp. But, we still do
4208
# want the nicer errors raised by lazy_regex.
4209
name._compile_and_collapse()
4212
conf = self._get_stack(directory, scope)
4213
for store, section in conf.iter_sections():
4214
for oname in section.iter_option_names():
4215
if name.search(oname):
4216
if cur_store_id != store.id:
4217
# Explain where the options are defined
4218
self.outf.write('%s:\n' % (store.id,))
4219
cur_store_id = store.id
4221
if (section.id is not None and cur_section != section.id):
4222
# Display the section id as it appears in the store
4223
# (None doesn't appear by definition)
4224
self.outf.write(' [%s]\n' % (section.id,))
4225
cur_section = section.id
4226
value = section.get(oname, expand=False)
4227
# Quote the value appropriately
4228
value = self._quote_multiline(value)
4229
self.outf.write(' %s = %s\n' % (oname, value))
4231
def _set_config_option(self, name, value, directory, scope):
4232
conf = self._get_stack(directory, scope, write_access=True)
4233
conf.set(name, value)
4235
def _remove_config_option(self, name, directory, scope):
4237
raise errors.BzrCommandError(
4238
'--remove expects an option to remove.')
4239
conf = self._get_stack(directory, scope, write_access=True)
4243
raise errors.NoSuchConfigOption(name)
4248
# We need adapters that can build a Store or a Stack in a test context. Test
4249
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4250
# themselves. The builder will receive a test instance and should return a
4251
# ready-to-use store or stack. Plugins that define new store/stacks can also
4252
# register themselves here to be tested against the tests defined in
4253
# bzrlib.tests.test_config. Note that the builder can be called multiple times
4254
# for the same test.
4256
# The registered object should be a callable receiving a test instance
4257
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4259
test_store_builder_registry = registry.Registry()
4261
# The registered object should be a callable receiving a test instance
4262
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4264
test_stack_builder_registry = registry.Registry()