1578
2280
configobj[name] = value
1580
2282
configobj.setdefault(section, {})[name] = value
2283
for hook in OldConfigHooks['set']:
2284
hook(self, name, value)
2285
self._set_configobj(configobj)
2287
def remove_option(self, option_name, section_name=None):
2288
configobj = self._get_configobj()
2289
if section_name is None:
2290
del configobj[option_name]
2292
del configobj[section_name][option_name]
2293
for hook in OldConfigHooks['remove']:
2294
hook(self, option_name)
1581
2295
self._set_configobj(configobj)
1583
2297
def _get_config_file(self):
1585
return StringIO(self._transport.get_bytes(self._filename))
2299
f = StringIO(self._transport.get_bytes(self._filename))
2300
for hook in OldConfigHooks['load']:
1586
2303
except errors.NoSuchFile:
1587
2304
return StringIO()
2305
except errors.PermissionDenied, e:
2306
trace.warning("Permission denied while trying to open "
2307
"configuration file %s.", urlutils.unescape_for_display(
2308
urlutils.join(self._transport.base, self._filename), "utf-8"))
2311
def _external_url(self):
2312
return urlutils.join(self._transport.external_url(), self._filename)
1589
2314
def _get_configobj(self):
1590
2315
f = self._get_config_file()
1592
return ConfigObj(f, encoding='utf-8')
2318
conf = ConfigObj(f, encoding='utf-8')
2319
except configobj.ConfigObjError, e:
2320
raise errors.ParseConfigError(e.errors, self._external_url())
2321
except UnicodeDecodeError:
2322
raise errors.ConfigContentError(self._external_url())
1596
2327
def _set_configobj(self, configobj):
1597
2328
out_file = StringIO()
1598
2329
configobj.write(out_file)
1599
2330
out_file.seek(0)
1600
2331
self._transport.put_file(self._filename, out_file)
2332
for hook in OldConfigHooks['save']:
2336
class Option(object):
2337
"""An option definition.
2339
The option *values* are stored in config files and found in sections.
2341
Here we define various properties about the option itself, its default
2342
value, how to convert it from stores, what to do when invalid values are
2343
encoutered, in which config files it can be stored.
2346
def __init__(self, name, default=None, default_from_env=None,
2347
help=None, from_unicode=None, invalid=None):
2348
"""Build an option definition.
2350
:param name: the name used to refer to the option.
2352
:param default: the default value to use when none exist in the config
2353
stores. This is either a string that ``from_unicode`` will convert
2354
into the proper type, a callable returning a unicode string so that
2355
``from_unicode`` can be used on the return value, or a python
2356
object that can be stringified (so only the empty list is supported
2359
:param default_from_env: A list of environment variables which can
2360
provide a default value. 'default' will be used only if none of the
2361
variables specified here are set in the environment.
2363
:param help: a doc string to explain the option to the user.
2365
:param from_unicode: a callable to convert the unicode string
2366
representing the option value in a store. This is not called for
2369
:param invalid: the action to be taken when an invalid value is
2370
encountered in a store. This is called only when from_unicode is
2371
invoked to convert a string and returns None or raise ValueError or
2372
TypeError. Accepted values are: None (ignore invalid values),
2373
'warning' (emit a warning), 'error' (emit an error message and
2376
if default_from_env is None:
2377
default_from_env = []
2379
# Convert the default value to a unicode string so all values are
2380
# strings internally before conversion (via from_unicode) is attempted.
2383
elif isinstance(default, list):
2384
# Only the empty list is supported
2386
raise AssertionError(
2387
'Only empty lists are supported as default values')
2389
elif isinstance(default, (str, unicode, bool, int, float)):
2390
# Rely on python to convert strings, booleans and integers
2391
self.default = u'%s' % (default,)
2392
elif callable(default):
2393
self.default = default
2395
# other python objects are not expected
2396
raise AssertionError('%r is not supported as a default value'
2398
self.default_from_env = default_from_env
2400
self.from_unicode = from_unicode
2401
if invalid and invalid not in ('warning', 'error'):
2402
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2403
self.invalid = invalid
2405
def convert_from_unicode(self, unicode_value):
2406
if self.from_unicode is None or unicode_value is None:
2407
# Don't convert or nothing to convert
2408
return unicode_value
2410
converted = self.from_unicode(unicode_value)
2411
except (ValueError, TypeError):
2412
# Invalid values are ignored
2414
if converted is None and self.invalid is not None:
2415
# The conversion failed
2416
if self.invalid == 'warning':
2417
trace.warning('Value "%s" is not valid for "%s"',
2418
unicode_value, self.name)
2419
elif self.invalid == 'error':
2420
raise errors.ConfigOptionValueError(self.name, unicode_value)
2423
def get_default(self):
2425
for var in self.default_from_env:
2427
# If the env variable is defined, its value is the default one
2428
value = os.environ[var].decode(osutils.get_user_encoding())
2433
# Otherwise, fallback to the value defined at registration
2434
if callable(self.default):
2435
value = self.default()
2436
if not isinstance(value, unicode):
2437
raise AssertionError(
2438
'Callable default values should be unicode')
2440
value = self.default
2443
def get_help_text(self, additional_see_also=None, plain=True):
2445
from bzrlib import help_topics
2446
result += help_topics._format_see_also(additional_see_also)
2448
result = help_topics.help_as_plain_text(result)
2452
# Predefined converters to get proper values from store
2454
def bool_from_store(unicode_str):
2455
return ui.bool_from_string(unicode_str)
2458
def int_from_store(unicode_str):
2459
return int(unicode_str)
2462
_unit_sfxs = dict(K=10**3, M=10**6, G=10**9)
2464
def int_SI_from_store(unicode_str):
2465
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2467
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2468
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2471
:return Integer, expanded to its base-10 value if a proper SI unit is
2472
found, None otherwise.
2474
regexp = "^(\d+)(([" + ''.join(_unit_sfxs) + "])b?)?$"
2475
p = re.compile(regexp, re.IGNORECASE)
2476
m = p.match(unicode_str)
2479
val, _, unit = m.groups()
2483
coeff = _unit_sfxs[unit.upper()]
2485
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2490
def float_from_store(unicode_str):
2491
return float(unicode_str)
2494
# Use a an empty dict to initialize an empty configobj avoiding all
2495
# parsing and encoding checks
2496
_list_converter_config = configobj.ConfigObj(
2497
{}, encoding='utf-8', list_values=True, interpolation=False)
2500
def list_from_store(unicode_str):
2501
if not isinstance(unicode_str, basestring):
2503
# Now inject our string directly as unicode. All callers got their value
2504
# from configobj, so values that need to be quoted are already properly
2506
_list_converter_config.reset()
2507
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2508
maybe_list = _list_converter_config['list']
2509
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2510
if isinstance(maybe_list, basestring):
2512
# A single value, most probably the user forgot (or didn't care to
2513
# add) the final ','
2516
# The empty string, convert to empty list
2519
# We rely on ConfigObj providing us with a list already
2524
class OptionRegistry(registry.Registry):
2525
"""Register config options by their name.
2527
This overrides ``registry.Registry`` to simplify registration by acquiring
2528
some information from the option object itself.
2531
def register(self, option):
2532
"""Register a new option to its name.
2534
:param option: The option to register. Its name is used as the key.
2536
super(OptionRegistry, self).register(option.name, option,
2539
def register_lazy(self, key, module_name, member_name):
2540
"""Register a new option to be loaded on request.
2542
:param key: the key to request the option later. Since the registration
2543
is lazy, it should be provided and match the option name.
2545
:param module_name: the python path to the module. Such as 'os.path'.
2547
:param member_name: the member of the module to return. If empty or
2548
None, get() will return the module itself.
2550
super(OptionRegistry, self).register_lazy(key,
2551
module_name, member_name)
2553
def get_help(self, key=None):
2554
"""Get the help text associated with the given key"""
2555
option = self.get(key)
2556
the_help = option.help
2557
if callable(the_help):
2558
return the_help(self, key)
2562
option_registry = OptionRegistry()
2565
# Registered options in lexicographical order
2567
option_registry.register(
2568
Option('append_revisions_only',
2569
default=None, from_unicode=bool_from_store, invalid='warning',
2571
Whether to only append revisions to the mainline.
2573
If this is set to true, then it is not possible to change the
2574
existing mainline of the branch.
2576
option_registry.register(
2577
Option('acceptable_keys',
2578
default=None, from_unicode=list_from_store,
2580
List of GPG key patterns which are acceptable for verification.
2582
option_registry.register(
2583
Option('add.maximum_file_size',
2584
default=u'20MB', from_unicode=int_SI_from_store,
2586
Size above which files should be added manually.
2588
Files below this size are added automatically when using ``bzr add`` without
2591
A negative value means disable the size check.
2593
option_registry.register(
2594
Option('bzr.workingtree.worth_saving_limit', default=10,
2595
from_unicode=int_from_store, invalid='warning',
2597
How many changes before saving the dirstate.
2599
-1 means that we will never rewrite the dirstate file for only
2600
stat-cache changes. Regardless of this setting, we will always rewrite
2601
the dirstate file if a file is added/removed/renamed/etc. This flag only
2602
affects the behavior of updating the dirstate file after we notice that
2603
a file has been touched.
2605
option_registry.register(
2606
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2607
from_unicode=signature_policy_from_unicode,
2609
GPG checking policy.
2611
Possible values: require, ignore, check-available (default)
2613
this option will control whether bzr will require good gpg
2614
signatures, ignore them, or check them if they are
2617
option_registry.register(
2618
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2619
from_unicode=signing_policy_from_unicode,
2623
Possible values: always, never, when-required (default)
2625
This option controls whether bzr will always create
2626
gpg signatures or not on commits.
2628
option_registry.register(
2629
Option('dirstate.fdatasync', default=True,
2630
from_unicode=bool_from_store,
2632
Flush dirstate changes onto physical disk?
2634
If true (default), working tree metadata changes are flushed through the
2635
OS buffers to physical disk. This is somewhat slower, but means data
2636
should not be lost if the machine crashes. See also repository.fdatasync.
2638
option_registry.register(
2639
Option('debug_flags', default=[], from_unicode=list_from_store,
2640
help='Debug flags to activate.'))
2641
option_registry.register(
2642
Option('default_format', default='2a',
2643
help='Format used when creating branches.'))
2644
option_registry.register(
2645
Option('dpush_strict', default=None,
2646
from_unicode=bool_from_store,
2648
The default value for ``dpush --strict``.
2650
If present, defines the ``--strict`` option default value for checking
2651
uncommitted changes before pushing into a different VCS without any
2652
custom bzr metadata.
2654
option_registry.register(
2656
help='The command called to launch an editor to enter a message.'))
2657
option_registry.register(
2658
Option('email', default=default_email,
2659
from_unicode=email_from_store,
2660
help='The users identity'))
2661
option_registry.register(
2662
Option('gpg_signing_command',
2665
Program to use use for creating signatures.
2667
This should support at least the -u and --clearsign options.
2669
option_registry.register(
2670
Option('gpg_signing_key',
2673
GPG key to use for signing.
2675
This defaults to the first key associated with the users email.
2677
option_registry.register(
2678
Option('ignore_missing_extensions', default=False,
2679
from_unicode=bool_from_store,
2681
Control the missing extensions warning display.
2683
The warning will not be emitted if set to True.
2685
option_registry.register(
2687
help='Language to translate messages into.'))
2688
option_registry.register(
2689
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2691
Steal locks that appears to be dead.
2693
If set to True, bzr will check if a lock is supposed to be held by an
2694
active process from the same user on the same machine. If the user and
2695
machine match, but no process with the given PID is active, then bzr
2696
will automatically break the stale lock, and create a new lock for
2698
Otherwise, bzr will prompt as normal to break the lock.
2700
option_registry.register(
2701
Option('log_format', default='long',
2703
Log format to use when displaying revisions.
2705
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2706
may be provided by plugins.
2708
option_registry.register(
2709
Option('output_encoding',
2710
help= 'Unicode encoding for output'
2711
' (terminal encoding if not specified).'))
2712
option_registry.register(
2713
Option('post_commit', default=None,
2715
Post commit functions.
2717
An ordered list of python functions to call, separated by spaces.
2719
Each function takes branch, rev_id as parameters.
2721
option_registry.register(
2722
Option('push_strict', default=None,
2723
from_unicode=bool_from_store,
2725
The default value for ``push --strict``.
2727
If present, defines the ``--strict`` option default value for checking
2728
uncommitted changes before sending a merge directive.
2730
option_registry.register(
2731
Option('repository.fdatasync', default=True,
2732
from_unicode=bool_from_store,
2734
Flush repository changes onto physical disk?
2736
If true (default), repository changes are flushed through the OS buffers
2737
to physical disk. This is somewhat slower, but means data should not be
2738
lost if the machine crashes. See also dirstate.fdatasync.
2740
option_registry.register_lazy('smtp_server',
2741
'bzrlib.smtp_connection', 'smtp_server')
2742
option_registry.register_lazy('smtp_password',
2743
'bzrlib.smtp_connection', 'smtp_password')
2744
option_registry.register_lazy('smtp_username',
2745
'bzrlib.smtp_connection', 'smtp_username')
2746
option_registry.register(
2747
Option('selftest.timeout',
2749
from_unicode=int_from_store,
2750
help='Abort selftest if one test takes longer than this many seconds',
2753
option_registry.register(
2754
Option('send_strict', default=None,
2755
from_unicode=bool_from_store,
2757
The default value for ``send --strict``.
2759
If present, defines the ``--strict`` option default value for checking
2760
uncommitted changes before pushing.
2763
option_registry.register(
2764
Option('serve.client_timeout',
2765
default=300.0, from_unicode=float_from_store,
2766
help="If we wait for a new request from a client for more than"
2767
" X seconds, consider the client idle, and hangup."))
2770
class Section(object):
2771
"""A section defines a dict of option name => value.
2773
This is merely a read-only dict which can add some knowledge about the
2774
options. It is *not* a python dict object though and doesn't try to mimic
2778
def __init__(self, section_id, options):
2779
self.id = section_id
2780
# We re-use the dict-like object received
2781
self.options = options
2783
def get(self, name, default=None, expand=True):
2784
return self.options.get(name, default)
2786
def iter_option_names(self):
2787
for k in self.options.iterkeys():
2791
# Mostly for debugging use
2792
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2795
_NewlyCreatedOption = object()
2796
"""Was the option created during the MutableSection lifetime"""
2799
class MutableSection(Section):
2800
"""A section allowing changes and keeping track of the original values."""
2802
def __init__(self, section_id, options):
2803
super(MutableSection, self).__init__(section_id, options)
2806
def set(self, name, value):
2807
if name not in self.options:
2808
# This is a new option
2809
self.orig[name] = _NewlyCreatedOption
2810
elif name not in self.orig:
2811
self.orig[name] = self.get(name, None)
2812
self.options[name] = value
2814
def remove(self, name):
2815
if name not in self.orig:
2816
self.orig[name] = self.get(name, None)
2817
del self.options[name]
2820
class Store(object):
2821
"""Abstract interface to persistent storage for configuration options."""
2823
readonly_section_class = Section
2824
mutable_section_class = MutableSection
2826
def is_loaded(self):
2827
"""Returns True if the Store has been loaded.
2829
This is used to implement lazy loading and ensure the persistent
2830
storage is queried only when needed.
2832
raise NotImplementedError(self.is_loaded)
2835
"""Loads the Store from persistent storage."""
2836
raise NotImplementedError(self.load)
2838
def _load_from_string(self, bytes):
2839
"""Create a store from a string in configobj syntax.
2841
:param bytes: A string representing the file content.
2843
raise NotImplementedError(self._load_from_string)
2846
"""Unloads the Store.
2848
This should make is_loaded() return False. This is used when the caller
2849
knows that the persistent storage has changed or may have change since
2852
raise NotImplementedError(self.unload)
2855
"""Saves the Store to persistent storage."""
2856
raise NotImplementedError(self.save)
2858
def external_url(self):
2859
raise NotImplementedError(self.external_url)
2861
def get_sections(self):
2862
"""Returns an ordered iterable of existing sections.
2864
:returns: An iterable of (store, section).
2866
raise NotImplementedError(self.get_sections)
2868
def get_mutable_section(self, section_id=None):
2869
"""Returns the specified mutable section.
2871
:param section_id: The section identifier
2873
raise NotImplementedError(self.get_mutable_section)
2876
# Mostly for debugging use
2877
return "<config.%s(%s)>" % (self.__class__.__name__,
2878
self.external_url())
2881
class CommandLineStore(Store):
2882
"A store to carry command line overrides for the config options."""
2884
def __init__(self, opts=None):
2885
super(CommandLineStore, self).__init__()
2891
# The dict should be cleared but not replaced so it can be shared.
2892
self.options.clear()
2894
def _from_cmdline(self, overrides):
2895
# Reset before accepting new definitions
2897
for over in overrides:
2899
name, value = over.split('=', 1)
2901
raise errors.BzrCommandError(
2902
gettext("Invalid '%s', should be of the form 'name=value'")
2904
self.options[name] = value
2906
def external_url(self):
2907
# Not an url but it makes debugging easier and is never needed
2911
def get_sections(self):
2912
yield self, self.readonly_section_class('cmdline_overrides',
2916
class IniFileStore(Store):
2917
"""A config Store using ConfigObj for storage.
2919
:ivar transport: The transport object where the config file is located.
2921
:ivar file_name: The config file basename in the transport directory.
2923
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2924
serialize/deserialize the config file.
2928
"""A config Store using ConfigObj for storage.
2930
super(IniFileStore, self).__init__()
2931
self._config_obj = None
2933
def is_loaded(self):
2934
return self._config_obj != None
2937
self._config_obj = None
2939
def _load_content(self):
2940
"""Load the config file bytes.
2942
This should be provided by subclasses
2944
:return: Byte string
2946
raise NotImplementedError(self._load_content)
2948
def _save_content(self, content):
2949
"""Save the config file bytes.
2951
This should be provided by subclasses
2953
:param content: Config file bytes to write
2955
raise NotImplementedError(self._save_content)
2958
"""Load the store from the associated file."""
2959
if self.is_loaded():
2961
content = self._load_content()
2962
self._load_from_string(content)
2963
for hook in ConfigHooks['load']:
2966
def _load_from_string(self, bytes):
2967
"""Create a config store from a string.
2969
:param bytes: A string representing the file content.
2971
if self.is_loaded():
2972
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2973
co_input = StringIO(bytes)
2975
# The config files are always stored utf8-encoded
2976
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2978
except configobj.ConfigObjError, e:
2979
self._config_obj = None
2980
raise errors.ParseConfigError(e.errors, self.external_url())
2981
except UnicodeDecodeError:
2982
raise errors.ConfigContentError(self.external_url())
2985
if not self.is_loaded():
2989
self._config_obj.write(out)
2990
self._save_content(out.getvalue())
2991
for hook in ConfigHooks['save']:
2994
def get_sections(self):
2995
"""Get the configobj section in the file order.
2997
:returns: An iterable of (store, section).
2999
# We need a loaded store
3002
except (errors.NoSuchFile, errors.PermissionDenied):
3003
# If the file can't be read, there is no sections
3005
cobj = self._config_obj
3007
yield self, self.readonly_section_class(None, cobj)
3008
for section_name in cobj.sections:
3010
self.readonly_section_class(section_name,
3011
cobj[section_name]))
3013
def get_mutable_section(self, section_id=None):
3014
# We need a loaded store
3017
except errors.NoSuchFile:
3018
# The file doesn't exist, let's pretend it was empty
3019
self._load_from_string('')
3020
if section_id is None:
3021
section = self._config_obj
3023
section = self._config_obj.setdefault(section_id, {})
3024
return self.mutable_section_class(section_id, section)
3027
class TransportIniFileStore(IniFileStore):
3028
"""IniFileStore that loads files from a transport.
3031
def __init__(self, transport, file_name):
3032
"""A Store using a ini file on a Transport
3034
:param transport: The transport object where the config file is located.
3035
:param file_name: The config file basename in the transport directory.
3037
super(TransportIniFileStore, self).__init__()
3038
self.transport = transport
3039
self.file_name = file_name
3041
def _load_content(self):
3043
return self.transport.get_bytes(self.file_name)
3044
except errors.PermissionDenied:
3045
trace.warning("Permission denied while trying to load "
3046
"configuration store %s.", self.external_url())
3049
def _save_content(self, content):
3050
self.transport.put_bytes(self.file_name, content)
3052
def external_url(self):
3053
# FIXME: external_url should really accepts an optional relpath
3054
# parameter (bug #750169) :-/ -- vila 2011-04-04
3055
# The following will do in the interim but maybe we don't want to
3056
# expose a path here but rather a config ID and its associated
3057
# object </hand wawe>.
3058
return urlutils.join(self.transport.external_url(), self.file_name)
3061
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3062
# unlockable stores for use with objects that can already ensure the locking
3063
# (think branches). If different stores (not based on ConfigObj) are created,
3064
# they may face the same issue.
3067
class LockableIniFileStore(TransportIniFileStore):
3068
"""A ConfigObjStore using locks on save to ensure store integrity."""
3070
def __init__(self, transport, file_name, lock_dir_name=None):
3071
"""A config Store using ConfigObj for storage.
3073
:param transport: The transport object where the config file is located.
3075
:param file_name: The config file basename in the transport directory.
3077
if lock_dir_name is None:
3078
lock_dir_name = 'lock'
3079
self.lock_dir_name = lock_dir_name
3080
super(LockableIniFileStore, self).__init__(transport, file_name)
3081
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3083
def lock_write(self, token=None):
3084
"""Takes a write lock in the directory containing the config file.
3086
If the directory doesn't exist it is created.
3088
# FIXME: This doesn't check the ownership of the created directories as
3089
# ensure_config_dir_exists does. It should if the transport is local
3090
# -- vila 2011-04-06
3091
self.transport.create_prefix()
3092
return self._lock.lock_write(token)
3097
def break_lock(self):
3098
self._lock.break_lock()
3102
# We need to be able to override the undecorated implementation
3103
self.save_without_locking()
3105
def save_without_locking(self):
3106
super(LockableIniFileStore, self).save()
3109
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3110
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3111
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3113
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3114
# functions or a registry will make it easier and clearer for tests, focusing
3115
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3116
# on a poolie's remark)
3117
class GlobalStore(LockableIniFileStore):
3119
def __init__(self, possible_transports=None):
3120
t = transport.get_transport_from_path(
3121
config_dir(), possible_transports=possible_transports)
3122
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3126
class LocationStore(LockableIniFileStore):
3128
def __init__(self, possible_transports=None):
3129
t = transport.get_transport_from_path(
3130
config_dir(), possible_transports=possible_transports)
3131
super(LocationStore, self).__init__(t, 'locations.conf')
3132
self.id = 'locations'
3135
class BranchStore(TransportIniFileStore):
3137
def __init__(self, branch):
3138
super(BranchStore, self).__init__(branch.control_transport,
3140
self.branch = branch
3143
def lock_write(self, token=None):
3144
return self.branch.lock_write(token)
3147
return self.branch.unlock()
3151
# We need to be able to override the undecorated implementation
3152
self.save_without_locking()
3154
def save_without_locking(self):
3155
super(BranchStore, self).save()
3158
class ControlStore(LockableIniFileStore):
3160
def __init__(self, bzrdir):
3161
super(ControlStore, self).__init__(bzrdir.transport,
3163
lock_dir_name='branch_lock')
3166
class SectionMatcher(object):
3167
"""Select sections into a given Store.
3169
This is intended to be used to postpone getting an iterable of sections
3173
def __init__(self, store):
3176
def get_sections(self):
3177
# This is where we require loading the store so we can see all defined
3179
sections = self.store.get_sections()
3180
# Walk the revisions in the order provided
3181
for store, s in sections:
3185
def match(self, section):
3186
"""Does the proposed section match.
3188
:param section: A Section object.
3190
:returns: True if the section matches, False otherwise.
3192
raise NotImplementedError(self.match)
3195
class NameMatcher(SectionMatcher):
3197
def __init__(self, store, section_id):
3198
super(NameMatcher, self).__init__(store)
3199
self.section_id = section_id
3201
def match(self, section):
3202
return section.id == self.section_id
3205
class LocationSection(Section):
3207
def __init__(self, section, length, extra_path):
3208
super(LocationSection, self).__init__(section.id, section.options)
3209
self.length = length
3210
self.extra_path = extra_path
3211
self.locals = {'relpath': extra_path,
3212
'basename': urlutils.basename(extra_path)}
3214
def get(self, name, default=None, expand=True):
3215
value = super(LocationSection, self).get(name, default)
3216
if value is not None and expand:
3217
policy_name = self.get(name + ':policy', None)
3218
policy = _policy_value.get(policy_name, POLICY_NONE)
3219
if policy == POLICY_APPENDPATH:
3220
value = urlutils.join(value, self.extra_path)
3221
# expand section local options right now (since POLICY_APPENDPATH
3222
# will never add options references, it's ok to expand after it).
3224
for is_ref, chunk in iter_option_refs(value):
3226
chunks.append(chunk)
3229
if ref in self.locals:
3230
chunks.append(self.locals[ref])
3232
chunks.append(chunk)
3233
value = ''.join(chunks)
3237
class LocationMatcher(SectionMatcher):
3239
def __init__(self, store, location):
3240
super(LocationMatcher, self).__init__(store)
3241
if location.startswith('file://'):
3242
location = urlutils.local_path_from_url(location)
3243
self.location = location
3245
def _get_matching_sections(self):
3246
"""Get all sections matching ``location``."""
3247
# We slightly diverge from LocalConfig here by allowing the no-name
3248
# section as the most generic one and the lower priority.
3249
no_name_section = None
3251
# Filter out the no_name_section so _iter_for_location_by_parts can be
3252
# used (it assumes all sections have a name).
3253
for _, section in self.store.get_sections():
3254
if section.id is None:
3255
no_name_section = section
3257
all_sections.append(section)
3258
# Unfortunately _iter_for_location_by_parts deals with section names so
3259
# we have to resync.
3260
filtered_sections = _iter_for_location_by_parts(
3261
[s.id for s in all_sections], self.location)
3262
iter_all_sections = iter(all_sections)
3263
matching_sections = []
3264
if no_name_section is not None:
3265
matching_sections.append(
3266
LocationSection(no_name_section, 0, self.location))
3267
for section_id, extra_path, length in filtered_sections:
3268
# a section id is unique for a given store so it's safe to take the
3269
# first matching section while iterating. Also, all filtered
3270
# sections are part of 'all_sections' and will always be found
3273
section = iter_all_sections.next()
3274
if section_id == section.id:
3275
matching_sections.append(
3276
LocationSection(section, length, extra_path))
3278
return matching_sections
3280
def get_sections(self):
3281
# Override the default implementation as we want to change the order
3282
matching_sections = self._get_matching_sections()
3283
# We want the longest (aka more specific) locations first
3284
sections = sorted(matching_sections,
3285
key=lambda section: (section.length, section.id),
3287
# Sections mentioning 'ignore_parents' restrict the selection
3288
for section in sections:
3289
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3290
ignore = section.get('ignore_parents', None)
3291
if ignore is not None:
3292
ignore = ui.bool_from_string(ignore)
3295
# Finally, we have a valid section
3296
yield self.store, section
3299
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3300
"""Describes an expandable option reference.
3302
We want to match the most embedded reference first.
3304
I.e. for '{{foo}}' we will get '{foo}',
3305
for '{bar{baz}}' we will get '{baz}'
3308
def iter_option_refs(string):
3309
# Split isolate refs so every other chunk is a ref
3311
for chunk in _option_ref_re.split(string):
3316
class Stack(object):
3317
"""A stack of configurations where an option can be defined"""
3319
def __init__(self, sections_def, store=None, mutable_section_id=None):
3320
"""Creates a stack of sections with an optional store for changes.
3322
:param sections_def: A list of Section or callables that returns an
3323
iterable of Section. This defines the Sections for the Stack and
3324
can be called repeatedly if needed.
3326
:param store: The optional Store where modifications will be
3327
recorded. If none is specified, no modifications can be done.
3329
:param mutable_section_id: The id of the MutableSection where changes
3330
are recorded. This requires the ``store`` parameter to be
3333
self.sections_def = sections_def
3335
self.mutable_section_id = mutable_section_id
3337
def get(self, name, expand=None):
3338
"""Return the *first* option value found in the sections.
3340
This is where we guarantee that sections coming from Store are loaded
3341
lazily: the loading is delayed until we need to either check that an
3342
option exists or get its value, which in turn may require to discover
3343
in which sections it can be defined. Both of these (section and option
3344
existence) require loading the store (even partially).
3346
:param name: The queried option.
3348
:param expand: Whether options references should be expanded.
3350
:returns: The value of the option.
3352
# FIXME: No caching of options nor sections yet -- vila 20110503
3354
expand = _get_expand_default_value()
3356
# Ensuring lazy loading is achieved by delaying section matching (which
3357
# implies querying the persistent storage) until it can't be avoided
3358
# anymore by using callables to describe (possibly empty) section
3360
for sections in self.sections_def:
3361
for store, section in sections():
3362
value = section.get(name)
3363
if value is not None:
3365
if value is not None:
3367
# If the option is registered, it may provide additional info about
3370
opt = option_registry.get(name)
3374
def expand_and_convert(val):
3375
# This may need to be called twice if the value is None or ends up
3376
# being None during expansion or conversion.
3379
if isinstance(val, basestring):
3380
val = self._expand_options_in_string(val)
3382
trace.warning('Cannot expand "%s":'
3383
' %s does not support option expansion'
3384
% (name, type(val)))
3386
val = opt.convert_from_unicode(val)
3388
value = expand_and_convert(value)
3389
if opt is not None and value is None:
3390
# If the option is registered, it may provide a default value
3391
value = opt.get_default()
3392
value = expand_and_convert(value)
3393
for hook in ConfigHooks['get']:
3394
hook(self, name, value)
3397
def expand_options(self, string, env=None):
3398
"""Expand option references in the string in the configuration context.
3400
:param string: The string containing option(s) to expand.
3402
:param env: An option dict defining additional configuration options or
3403
overriding existing ones.
3405
:returns: The expanded string.
3407
return self._expand_options_in_string(string, env)
3409
def _expand_options_in_string(self, string, env=None, _refs=None):
3410
"""Expand options in the string in the configuration context.
3412
:param string: The string to be expanded.
3414
:param env: An option dict defining additional configuration options or
3415
overriding existing ones.
3417
:param _refs: Private list (FIFO) containing the options being expanded
3420
:returns: The expanded string.
3423
# Not much to expand there
3426
# What references are currently resolved (to detect loops)
3429
# We need to iterate until no more refs appear ({{foo}} will need two
3430
# iterations for example).
3435
for is_ref, chunk in iter_option_refs(result):
3437
chunks.append(chunk)
3442
raise errors.OptionExpansionLoop(string, _refs)
3444
value = self._expand_option(name, env, _refs)
3446
raise errors.ExpandingUnknownOption(name, string)
3447
chunks.append(value)
3449
result = ''.join(chunks)
3452
def _expand_option(self, name, env, _refs):
3453
if env is not None and name in env:
3454
# Special case, values provided in env takes precedence over
3458
value = self.get(name, expand=False)
3459
value = self._expand_options_in_string(value, env, _refs)
3462
def _get_mutable_section(self):
3463
"""Get the MutableSection for the Stack.
3465
This is where we guarantee that the mutable section is lazily loaded:
3466
this means we won't load the corresponding store before setting a value
3467
or deleting an option. In practice the store will often be loaded but
3468
this helps catching some programming errors.
3470
section = self.store.get_mutable_section(self.mutable_section_id)
3473
def set(self, name, value):
3474
"""Set a new value for the option."""
3475
section = self._get_mutable_section()
3476
section.set(name, value)
3477
for hook in ConfigHooks['set']:
3478
hook(self, name, value)
3480
def remove(self, name):
3481
"""Remove an existing option."""
3482
section = self._get_mutable_section()
3483
section.remove(name)
3484
for hook in ConfigHooks['remove']:
3488
# Mostly for debugging use
3489
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3491
def _get_overrides(self):
3492
# Hack around library_state.initialize never called
3493
if bzrlib.global_state is not None:
3494
return bzrlib.global_state.cmdline_overrides.get_sections()
3498
class _CompatibleStack(Stack):
3499
"""Place holder for compatibility with previous design.
3501
This is intended to ease the transition from the Config-based design to the
3502
Stack-based design and should not be used nor relied upon by plugins.
3504
One assumption made here is that the daughter classes will all use Stores
3505
derived from LockableIniFileStore).
3507
It implements set() and remove () by re-loading the store before applying
3508
the modification and saving it.
3510
The long term plan being to implement a single write by store to save
3511
all modifications, this class should not be used in the interim.
3514
def set(self, name, value):
3517
super(_CompatibleStack, self).set(name, value)
3518
# Force a write to persistent storage
3521
def remove(self, name):
3524
super(_CompatibleStack, self).remove(name)
3525
# Force a write to persistent storage
3529
class GlobalStack(_CompatibleStack):
3530
"""Global options only stack.
3532
The following sections are queried:
3534
* command-line overrides,
3536
* the 'DEFAULT' section in bazaar.conf
3538
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3543
gstore = GlobalStore()
3544
super(GlobalStack, self).__init__(
3545
[self._get_overrides,
3546
NameMatcher(gstore, 'DEFAULT').get_sections],
3547
gstore, mutable_section_id='DEFAULT')
3550
class LocationStack(_CompatibleStack):
3551
"""Per-location options falling back to global options stack.
3554
The following sections are queried:
3556
* command-line overrides,
3558
* the sections matching ``location`` in ``locations.conf``, the order being
3559
defined by the number of path components in the section glob, higher
3560
numbers first (from most specific section to most generic).
3562
* the 'DEFAULT' section in bazaar.conf
3564
This stack will use the ``location`` section in locations.conf as its
3568
def __init__(self, location):
3569
"""Make a new stack for a location and global configuration.
3571
:param location: A URL prefix to """
3572
lstore = LocationStore()
3573
if location.startswith('file://'):
3574
location = urlutils.local_path_from_url(location)
3575
gstore = GlobalStore()
3576
super(LocationStack, self).__init__(
3577
[self._get_overrides,
3578
LocationMatcher(lstore, location).get_sections,
3579
NameMatcher(gstore, 'DEFAULT').get_sections],
3580
lstore, mutable_section_id=location)
3583
class BranchStack(_CompatibleStack):
3584
"""Per-location options falling back to branch then global options stack.
3586
The following sections are queried:
3588
* command-line overrides,
3590
* the sections matching ``location`` in ``locations.conf``, the order being
3591
defined by the number of path components in the section glob, higher
3592
numbers first (from most specific section to most generic),
3594
* the no-name section in branch.conf,
3596
* the ``DEFAULT`` section in ``bazaar.conf``.
3598
This stack will use the no-name section in ``branch.conf`` as its
3602
def __init__(self, branch):
3603
lstore = LocationStore()
3604
bstore = branch._get_config_store()
3605
gstore = GlobalStore()
3606
super(BranchStack, self).__init__(
3607
[self._get_overrides,
3608
LocationMatcher(lstore, branch.base).get_sections,
3609
NameMatcher(bstore, None).get_sections,
3610
NameMatcher(gstore, 'DEFAULT').get_sections],
3612
self.branch = branch
3615
class RemoteControlStack(_CompatibleStack):
3616
"""Remote control-only options stack."""
3618
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3619
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3620
# control.conf and is used only for stack options.
3622
def __init__(self, bzrdir):
3623
cstore = bzrdir._get_config_store()
3624
super(RemoteControlStack, self).__init__(
3625
[NameMatcher(cstore, None).get_sections],
3627
self.bzrdir = bzrdir
3630
class RemoteBranchStack(_CompatibleStack):
3631
"""Remote branch-only options stack."""
3633
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3634
# with the stack used for remote branches. RemoteBranchStack only uses
3635
# branch.conf and is used only for the stack options.
3637
def __init__(self, branch):
3638
bstore = branch._get_config_store()
3639
super(RemoteBranchStack, self).__init__(
3640
[NameMatcher(bstore, None).get_sections],
3642
self.branch = branch
3644
# Use a an empty dict to initialize an empty configobj avoiding all
3645
# parsing and encoding checks
3646
_quoting_config = configobj.ConfigObj(
3647
{}, encoding='utf-8', interpolation=False)
3649
class cmd_config(commands.Command):
3650
__doc__ = """Display, set or remove a configuration option.
3652
Display the active value for a given option.
3654
If --all is specified, NAME is interpreted as a regular expression and all
3655
matching options are displayed mentioning their scope. The active value
3656
that bzr will take into account is the first one displayed for each option.
3658
If no NAME is given, --all .* is implied.
3660
Setting a value is achieved by using name=value without spaces. The value
3661
is set in the most relevant scope and can be checked by displaying the
3665
takes_args = ['name?']
3669
# FIXME: This should be a registry option so that plugins can register
3670
# their own config files (or not) and will also address
3671
# http://pad.lv/788991 -- vila 20101115
3672
commands.Option('scope', help='Reduce the scope to the specified'
3673
' configuration file.',
3675
commands.Option('all',
3676
help='Display all the defined values for the matching options.',
3678
commands.Option('remove', help='Remove the option from'
3679
' the configuration file.'),
3682
_see_also = ['configuration']
3684
@commands.display_command
3685
def run(self, name=None, all=False, directory=None, scope=None,
3687
if directory is None:
3689
directory = urlutils.normalize_url(directory)
3691
raise errors.BzrError(
3692
'--all and --remove are mutually exclusive.')
3694
# Delete the option in the given scope
3695
self._remove_config_option(name, directory, scope)
3697
# Defaults to all options
3698
self._show_matching_options('.*', directory, scope)
3701
name, value = name.split('=', 1)
3703
# Display the option(s) value(s)
3705
self._show_matching_options(name, directory, scope)
3707
self._show_value(name, directory, scope)
3710
raise errors.BzrError(
3711
'Only one option can be set.')
3712
# Set the option value
3713
self._set_config_option(name, value, directory, scope)
3715
def _get_stack(self, directory, scope=None):
3716
"""Get the configuration stack specified by ``directory`` and ``scope``.
3718
:param directory: Where the configurations are derived from.
3720
:param scope: A specific config to start from.
3722
# FIXME: scope should allow access to plugin-specific stacks (even
3723
# reduced to the plugin-specific store), related to
3724
# http://pad.lv/788991 -- vila 2011-11-15
3725
if scope is not None:
3726
if scope == 'bazaar':
3727
return GlobalStack()
3728
elif scope == 'locations':
3729
return LocationStack(directory)
3730
elif scope == 'branch':
3732
controldir.ControlDir.open_containing_tree_or_branch(
3734
return br.get_config_stack()
3735
raise errors.NoSuchConfig(scope)
3739
controldir.ControlDir.open_containing_tree_or_branch(
3741
return br.get_config_stack()
3742
except errors.NotBranchError:
3743
return LocationStack(directory)
3745
def _show_value(self, name, directory, scope):
3746
conf = self._get_stack(directory, scope)
3747
value = conf.get(name, expand=True)
3748
if value is not None:
3749
# Quote the value appropriately
3750
value = _quoting_config._quote(value)
3751
self.outf.write('%s\n' % (value,))
3753
raise errors.NoSuchConfigOption(name)
3755
def _show_matching_options(self, name, directory, scope):
3756
name = lazy_regex.lazy_compile(name)
3757
# We want any error in the regexp to be raised *now* so we need to
3758
# avoid the delay introduced by the lazy regexp. But, we still do
3759
# want the nicer errors raised by lazy_regex.
3760
name._compile_and_collapse()
3763
conf = self._get_stack(directory, scope)
3764
for sections in conf.sections_def:
3765
for store, section in sections():
3766
for oname in section.iter_option_names():
3767
if name.search(oname):
3768
if cur_store_id != store.id:
3769
# Explain where the options are defined
3770
self.outf.write('%s:\n' % (store.id,))
3771
cur_store_id = store.id
3773
if (section.id not in (None, 'DEFAULT')
3774
and cur_section != section.id):
3775
# Display the section if it's not the default (or
3777
self.outf.write(' [%s]\n' % (section.id,))
3778
cur_section = section.id
3779
value = section.get(oname, expand=False)
3780
value = _quoting_config._quote(value)
3781
self.outf.write(' %s = %s\n' % (oname, value))
3783
def _set_config_option(self, name, value, directory, scope):
3784
conf = self._get_stack(directory, scope)
3785
conf.set(name, value)
3787
def _remove_config_option(self, name, directory, scope):
3789
raise errors.BzrCommandError(
3790
'--remove expects an option to remove.')
3791
conf = self._get_stack(directory, scope)
3795
raise errors.NoSuchConfigOption(name)
3800
# We need adapters that can build a Store or a Stack in a test context. Test
3801
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3802
# themselves. The builder will receive a test instance and should return a
3803
# ready-to-use store or stack. Plugins that define new store/stacks can also
3804
# register themselves here to be tested against the tests defined in
3805
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3806
# for the same test.
3808
# The registered object should be a callable receiving a test instance
3809
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3811
test_store_builder_registry = registry.Registry()
3813
# The registered object should be a callable receiving a test instance
3814
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3816
test_stack_builder_registry = registry.Registry()