1508
2276
configobj[name] = value
1510
2278
configobj.setdefault(section, {})[name] = value
2279
for hook in OldConfigHooks['set']:
2280
hook(self, name, value)
2281
self._set_configobj(configobj)
2283
def remove_option(self, option_name, section_name=None):
2284
configobj = self._get_configobj()
2285
if section_name is None:
2286
del configobj[option_name]
2288
del configobj[section_name][option_name]
2289
for hook in OldConfigHooks['remove']:
2290
hook(self, option_name)
1511
2291
self._set_configobj(configobj)
1513
2293
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2295
f = StringIO(self._transport.get_bytes(self._filename))
2296
for hook in OldConfigHooks['load']:
1516
2299
except errors.NoSuchFile:
1517
2300
return StringIO()
2301
except errors.PermissionDenied, e:
2302
trace.warning("Permission denied while trying to open "
2303
"configuration file %s.", urlutils.unescape_for_display(
2304
urlutils.join(self._transport.base, self._filename), "utf-8"))
2307
def _external_url(self):
2308
return urlutils.join(self._transport.external_url(), self._filename)
1519
2310
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2311
f = self._get_config_file()
2314
conf = ConfigObj(f, encoding='utf-8')
2315
except configobj.ConfigObjError, e:
2316
raise errors.ParseConfigError(e.errors, self._external_url())
2317
except UnicodeDecodeError:
2318
raise errors.ConfigContentError(self._external_url())
1522
2323
def _set_configobj(self, configobj):
1523
2324
out_file = StringIO()
1524
2325
configobj.write(out_file)
1525
2326
out_file.seek(0)
1526
2327
self._transport.put_file(self._filename, out_file)
2328
for hook in OldConfigHooks['save']:
2332
class Option(object):
2333
"""An option definition.
2335
The option *values* are stored in config files and found in sections.
2337
Here we define various properties about the option itself, its default
2338
value, how to convert it from stores, what to do when invalid values are
2339
encoutered, in which config files it can be stored.
2342
def __init__(self, name, default=None, default_from_env=None,
2343
help=None, from_unicode=None, invalid=None):
2344
"""Build an option definition.
2346
:param name: the name used to refer to the option.
2348
:param default: the default value to use when none exist in the config
2349
stores. This is either a string that ``from_unicode`` will convert
2350
into the proper type, a callable returning a unicode string so that
2351
``from_unicode`` can be used on the return value, or a python
2352
object that can be stringified (so only the empty list is supported
2355
:param default_from_env: A list of environment variables which can
2356
provide a default value. 'default' will be used only if none of the
2357
variables specified here are set in the environment.
2359
:param help: a doc string to explain the option to the user.
2361
:param from_unicode: a callable to convert the unicode string
2362
representing the option value in a store. This is not called for
2365
:param invalid: the action to be taken when an invalid value is
2366
encountered in a store. This is called only when from_unicode is
2367
invoked to convert a string and returns None or raise ValueError or
2368
TypeError. Accepted values are: None (ignore invalid values),
2369
'warning' (emit a warning), 'error' (emit an error message and
2372
if default_from_env is None:
2373
default_from_env = []
2375
# Convert the default value to a unicode string so all values are
2376
# strings internally before conversion (via from_unicode) is attempted.
2379
elif isinstance(default, list):
2380
# Only the empty list is supported
2382
raise AssertionError(
2383
'Only empty lists are supported as default values')
2385
elif isinstance(default, (str, unicode, bool, int, float)):
2386
# Rely on python to convert strings, booleans and integers
2387
self.default = u'%s' % (default,)
2388
elif callable(default):
2389
self.default = default
2391
# other python objects are not expected
2392
raise AssertionError('%r is not supported as a default value'
2394
self.default_from_env = default_from_env
2396
self.from_unicode = from_unicode
2397
if invalid and invalid not in ('warning', 'error'):
2398
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2399
self.invalid = invalid
2401
def convert_from_unicode(self, unicode_value):
2402
if self.from_unicode is None or unicode_value is None:
2403
# Don't convert or nothing to convert
2404
return unicode_value
2406
converted = self.from_unicode(unicode_value)
2407
except (ValueError, TypeError):
2408
# Invalid values are ignored
2410
if converted is None and self.invalid is not None:
2411
# The conversion failed
2412
if self.invalid == 'warning':
2413
trace.warning('Value "%s" is not valid for "%s"',
2414
unicode_value, self.name)
2415
elif self.invalid == 'error':
2416
raise errors.ConfigOptionValueError(self.name, unicode_value)
2419
def get_default(self):
2421
for var in self.default_from_env:
2423
# If the env variable is defined, its value is the default one
2424
value = os.environ[var].decode(osutils.get_user_encoding())
2429
# Otherwise, fallback to the value defined at registration
2430
if callable(self.default):
2431
value = self.default()
2432
if not isinstance(value, unicode):
2433
raise AssertionError(
2434
'Callable default values should be unicode')
2436
value = self.default
2439
def get_help_text(self, additional_see_also=None, plain=True):
2441
from bzrlib import help_topics
2442
result += help_topics._format_see_also(additional_see_also)
2444
result = help_topics.help_as_plain_text(result)
2448
# Predefined converters to get proper values from store
2450
def bool_from_store(unicode_str):
2451
return ui.bool_from_string(unicode_str)
2454
def int_from_store(unicode_str):
2455
return int(unicode_str)
2458
def float_from_store(unicode_str):
2459
return float(unicode_str)
2462
# Use a an empty dict to initialize an empty configobj avoiding all
2463
# parsing and encoding checks
2464
_list_converter_config = configobj.ConfigObj(
2465
{}, encoding='utf-8', list_values=True, interpolation=False)
2468
def list_from_store(unicode_str):
2469
if not isinstance(unicode_str, basestring):
2471
# Now inject our string directly as unicode. All callers got their value
2472
# from configobj, so values that need to be quoted are already properly
2474
_list_converter_config.reset()
2475
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2476
maybe_list = _list_converter_config['list']
2477
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2478
if isinstance(maybe_list, basestring):
2480
# A single value, most probably the user forgot (or didn't care to
2481
# add) the final ','
2484
# The empty string, convert to empty list
2487
# We rely on ConfigObj providing us with a list already
2492
class OptionRegistry(registry.Registry):
2493
"""Register config options by their name.
2495
This overrides ``registry.Registry`` to simplify registration by acquiring
2496
some information from the option object itself.
2499
def register(self, option):
2500
"""Register a new option to its name.
2502
:param option: The option to register. Its name is used as the key.
2504
super(OptionRegistry, self).register(option.name, option,
2507
def register_lazy(self, key, module_name, member_name):
2508
"""Register a new option to be loaded on request.
2510
:param key: the key to request the option later. Since the registration
2511
is lazy, it should be provided and match the option name.
2513
:param module_name: the python path to the module. Such as 'os.path'.
2515
:param member_name: the member of the module to return. If empty or
2516
None, get() will return the module itself.
2518
super(OptionRegistry, self).register_lazy(key,
2519
module_name, member_name)
2521
def get_help(self, key=None):
2522
"""Get the help text associated with the given key"""
2523
option = self.get(key)
2524
the_help = option.help
2525
if callable(the_help):
2526
return the_help(self, key)
2530
option_registry = OptionRegistry()
2533
# Registered options in lexicographical order
2535
option_registry.register(
2536
Option('append_revisions_only',
2537
default=None, from_unicode=bool_from_store, invalid='warning',
2539
Whether to only append revisions to the mainline.
2541
If this is set to true, then it is not possible to change the
2542
existing mainline of the branch.
2544
option_registry.register(
2545
Option('acceptable_keys',
2546
default=None, from_unicode=list_from_store,
2548
List of GPG key patterns which are acceptable for verification.
2550
option_registry.register(
2551
Option('bzr.workingtree.worth_saving_limit', default=10,
2552
from_unicode=int_from_store, invalid='warning',
2554
How many changes before saving the dirstate.
2556
-1 means that we will never rewrite the dirstate file for only
2557
stat-cache changes. Regardless of this setting, we will always rewrite
2558
the dirstate file if a file is added/removed/renamed/etc. This flag only
2559
affects the behavior of updating the dirstate file after we notice that
2560
a file has been touched.
2562
option_registry.register(
2563
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2564
from_unicode=signature_policy_from_unicode,
2566
GPG checking policy.
2568
Possible values: require, ignore, check-available (default)
2570
this option will control whether bzr will require good gpg
2571
signatures, ignore them, or check them if they are
2574
option_registry.register(
2575
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2576
from_unicode=signing_policy_from_unicode,
2580
Possible values: always, never, when-required (default)
2582
This option controls whether bzr will always create
2583
gpg signatures or not on commits.
2585
option_registry.register(
2586
Option('dirstate.fdatasync', default=True,
2587
from_unicode=bool_from_store,
2589
Flush dirstate changes onto physical disk?
2591
If true (default), working tree metadata changes are flushed through the
2592
OS buffers to physical disk. This is somewhat slower, but means data
2593
should not be lost if the machine crashes. See also repository.fdatasync.
2595
option_registry.register(
2596
Option('debug_flags', default=[], from_unicode=list_from_store,
2597
help='Debug flags to activate.'))
2598
option_registry.register(
2599
Option('default_format', default='2a',
2600
help='Format used when creating branches.'))
2601
option_registry.register(
2602
Option('dpush_strict', default=None,
2603
from_unicode=bool_from_store,
2605
The default value for ``dpush --strict``.
2607
If present, defines the ``--strict`` option default value for checking
2608
uncommitted changes before pushing into a different VCS without any
2609
custom bzr metadata.
2611
option_registry.register(
2613
help='The command called to launch an editor to enter a message.'))
2614
option_registry.register(
2615
Option('email', default=default_email,
2616
from_unicode=email_from_store,
2617
help='The users identity'))
2618
option_registry.register(
2619
Option('gpg_signing_command',
2622
Program to use use for creating signatures.
2624
This should support at least the -u and --clearsign options.
2626
option_registry.register(
2627
Option('gpg_signing_key',
2630
GPG key to use for signing.
2632
This defaults to the first key associated with the users email.
2634
option_registry.register(
2635
Option('ignore_missing_extensions', default=False,
2636
from_unicode=bool_from_store,
2638
Control the missing extensions warning display.
2640
The warning will not be emitted if set to True.
2642
option_registry.register(
2644
help='Language to translate messages into.'))
2645
option_registry.register(
2646
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2648
Steal locks that appears to be dead.
2650
If set to True, bzr will check if a lock is supposed to be held by an
2651
active process from the same user on the same machine. If the user and
2652
machine match, but no process with the given PID is active, then bzr
2653
will automatically break the stale lock, and create a new lock for
2655
Otherwise, bzr will prompt as normal to break the lock.
2657
option_registry.register(
2658
Option('log_format', default='long',
2660
Log format to use when displaying revisions.
2662
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2663
may be provided by plugins.
2665
option_registry.register(
2666
Option('output_encoding',
2667
help= 'Unicode encoding for output'
2668
' (terminal encoding if not specified).'))
2669
option_registry.register(
2670
Option('post_commit', default=None,
2672
Post commit functions.
2674
An ordered list of python functions to call, separated by spaces.
2676
Each function takes branch, rev_id as parameters.
2678
option_registry.register(
2679
Option('push_strict', default=None,
2680
from_unicode=bool_from_store,
2682
The default value for ``push --strict``.
2684
If present, defines the ``--strict`` option default value for checking
2685
uncommitted changes before sending a merge directive.
2687
option_registry.register(
2688
Option('repository.fdatasync', default=True,
2689
from_unicode=bool_from_store,
2691
Flush repository changes onto physical disk?
2693
If true (default), repository changes are flushed through the OS buffers
2694
to physical disk. This is somewhat slower, but means data should not be
2695
lost if the machine crashes. See also dirstate.fdatasync.
2698
option_registry.register(
2699
Option('selftest.timeout',
2701
from_unicode=int_from_store,
2702
help='Abort selftest if one test takes longer than this many seconds',
2705
option_registry.register(
2706
Option('send_strict', default=None,
2707
from_unicode=bool_from_store,
2709
The default value for ``send --strict``.
2711
If present, defines the ``--strict`` option default value for checking
2712
uncommitted changes before pushing.
2715
option_registry.register(
2716
Option('serve.client_timeout',
2717
default=300.0, from_unicode=float_from_store,
2718
help="If we wait for a new request from a client for more than"
2719
" X seconds, consider the client idle, and hangup."))
2722
class Section(object):
2723
"""A section defines a dict of option name => value.
2725
This is merely a read-only dict which can add some knowledge about the
2726
options. It is *not* a python dict object though and doesn't try to mimic
2730
def __init__(self, section_id, options):
2731
self.id = section_id
2732
# We re-use the dict-like object received
2733
self.options = options
2735
def get(self, name, default=None, expand=True):
2736
return self.options.get(name, default)
2738
def iter_option_names(self):
2739
for k in self.options.iterkeys():
2743
# Mostly for debugging use
2744
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2747
_NewlyCreatedOption = object()
2748
"""Was the option created during the MutableSection lifetime"""
2751
class MutableSection(Section):
2752
"""A section allowing changes and keeping track of the original values."""
2754
def __init__(self, section_id, options):
2755
super(MutableSection, self).__init__(section_id, options)
2758
def set(self, name, value):
2759
if name not in self.options:
2760
# This is a new option
2761
self.orig[name] = _NewlyCreatedOption
2762
elif name not in self.orig:
2763
self.orig[name] = self.get(name, None)
2764
self.options[name] = value
2766
def remove(self, name):
2767
if name not in self.orig:
2768
self.orig[name] = self.get(name, None)
2769
del self.options[name]
2772
class Store(object):
2773
"""Abstract interface to persistent storage for configuration options."""
2775
readonly_section_class = Section
2776
mutable_section_class = MutableSection
2778
def is_loaded(self):
2779
"""Returns True if the Store has been loaded.
2781
This is used to implement lazy loading and ensure the persistent
2782
storage is queried only when needed.
2784
raise NotImplementedError(self.is_loaded)
2787
"""Loads the Store from persistent storage."""
2788
raise NotImplementedError(self.load)
2790
def _load_from_string(self, bytes):
2791
"""Create a store from a string in configobj syntax.
2793
:param bytes: A string representing the file content.
2795
raise NotImplementedError(self._load_from_string)
2798
"""Unloads the Store.
2800
This should make is_loaded() return False. This is used when the caller
2801
knows that the persistent storage has changed or may have change since
2804
raise NotImplementedError(self.unload)
2807
"""Saves the Store to persistent storage."""
2808
raise NotImplementedError(self.save)
2810
def external_url(self):
2811
raise NotImplementedError(self.external_url)
2813
def get_sections(self):
2814
"""Returns an ordered iterable of existing sections.
2816
:returns: An iterable of (store, section).
2818
raise NotImplementedError(self.get_sections)
2820
def get_mutable_section(self, section_id=None):
2821
"""Returns the specified mutable section.
2823
:param section_id: The section identifier
2825
raise NotImplementedError(self.get_mutable_section)
2828
# Mostly for debugging use
2829
return "<config.%s(%s)>" % (self.__class__.__name__,
2830
self.external_url())
2833
class CommandLineStore(Store):
2834
"A store to carry command line overrides for the config options."""
2836
def __init__(self, opts=None):
2837
super(CommandLineStore, self).__init__()
2843
# The dict should be cleared but not replaced so it can be shared.
2844
self.options.clear()
2846
def _from_cmdline(self, overrides):
2847
# Reset before accepting new definitions
2849
for over in overrides:
2851
name, value = over.split('=', 1)
2853
raise errors.BzrCommandError(
2854
gettext("Invalid '%s', should be of the form 'name=value'")
2856
self.options[name] = value
2858
def external_url(self):
2859
# Not an url but it makes debugging easier and is never needed
2863
def get_sections(self):
2864
yield self, self.readonly_section_class('cmdline_overrides',
2868
class IniFileStore(Store):
2869
"""A config Store using ConfigObj for storage.
2871
:ivar transport: The transport object where the config file is located.
2873
:ivar file_name: The config file basename in the transport directory.
2875
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2876
serialize/deserialize the config file.
2880
"""A config Store using ConfigObj for storage.
2882
super(IniFileStore, self).__init__()
2883
self._config_obj = None
2885
def is_loaded(self):
2886
return self._config_obj != None
2889
self._config_obj = None
2891
def _load_content(self):
2892
"""Load the config file bytes.
2894
This should be provided by subclasses
2896
:return: Byte string
2898
raise NotImplementedError(self._load_content)
2900
def _save_content(self, content):
2901
"""Save the config file bytes.
2903
This should be provided by subclasses
2905
:param content: Config file bytes to write
2907
raise NotImplementedError(self._save_content)
2910
"""Load the store from the associated file."""
2911
if self.is_loaded():
2913
content = self._load_content()
2914
self._load_from_string(content)
2915
for hook in ConfigHooks['load']:
2918
def _load_from_string(self, bytes):
2919
"""Create a config store from a string.
2921
:param bytes: A string representing the file content.
2923
if self.is_loaded():
2924
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2925
co_input = StringIO(bytes)
2927
# The config files are always stored utf8-encoded
2928
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2930
except configobj.ConfigObjError, e:
2931
self._config_obj = None
2932
raise errors.ParseConfigError(e.errors, self.external_url())
2933
except UnicodeDecodeError:
2934
raise errors.ConfigContentError(self.external_url())
2937
if not self.is_loaded():
2941
self._config_obj.write(out)
2942
self._save_content(out.getvalue())
2943
for hook in ConfigHooks['save']:
2946
def get_sections(self):
2947
"""Get the configobj section in the file order.
2949
:returns: An iterable of (store, section).
2951
# We need a loaded store
2954
except (errors.NoSuchFile, errors.PermissionDenied):
2955
# If the file can't be read, there is no sections
2957
cobj = self._config_obj
2959
yield self, self.readonly_section_class(None, cobj)
2960
for section_name in cobj.sections:
2962
self.readonly_section_class(section_name,
2963
cobj[section_name]))
2965
def get_mutable_section(self, section_id=None):
2966
# We need a loaded store
2969
except errors.NoSuchFile:
2970
# The file doesn't exist, let's pretend it was empty
2971
self._load_from_string('')
2972
if section_id is None:
2973
section = self._config_obj
2975
section = self._config_obj.setdefault(section_id, {})
2976
return self.mutable_section_class(section_id, section)
2979
class TransportIniFileStore(IniFileStore):
2980
"""IniFileStore that loads files from a transport.
2983
def __init__(self, transport, file_name):
2984
"""A Store using a ini file on a Transport
2986
:param transport: The transport object where the config file is located.
2987
:param file_name: The config file basename in the transport directory.
2989
super(TransportIniFileStore, self).__init__()
2990
self.transport = transport
2991
self.file_name = file_name
2993
def _load_content(self):
2995
return self.transport.get_bytes(self.file_name)
2996
except errors.PermissionDenied:
2997
trace.warning("Permission denied while trying to load "
2998
"configuration store %s.", self.external_url())
3001
def _save_content(self, content):
3002
self.transport.put_bytes(self.file_name, content)
3004
def external_url(self):
3005
# FIXME: external_url should really accepts an optional relpath
3006
# parameter (bug #750169) :-/ -- vila 2011-04-04
3007
# The following will do in the interim but maybe we don't want to
3008
# expose a path here but rather a config ID and its associated
3009
# object </hand wawe>.
3010
return urlutils.join(self.transport.external_url(), self.file_name)
3013
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3014
# unlockable stores for use with objects that can already ensure the locking
3015
# (think branches). If different stores (not based on ConfigObj) are created,
3016
# they may face the same issue.
3019
class LockableIniFileStore(TransportIniFileStore):
3020
"""A ConfigObjStore using locks on save to ensure store integrity."""
3022
def __init__(self, transport, file_name, lock_dir_name=None):
3023
"""A config Store using ConfigObj for storage.
3025
:param transport: The transport object where the config file is located.
3027
:param file_name: The config file basename in the transport directory.
3029
if lock_dir_name is None:
3030
lock_dir_name = 'lock'
3031
self.lock_dir_name = lock_dir_name
3032
super(LockableIniFileStore, self).__init__(transport, file_name)
3033
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3035
def lock_write(self, token=None):
3036
"""Takes a write lock in the directory containing the config file.
3038
If the directory doesn't exist it is created.
3040
# FIXME: This doesn't check the ownership of the created directories as
3041
# ensure_config_dir_exists does. It should if the transport is local
3042
# -- vila 2011-04-06
3043
self.transport.create_prefix()
3044
return self._lock.lock_write(token)
3049
def break_lock(self):
3050
self._lock.break_lock()
3054
# We need to be able to override the undecorated implementation
3055
self.save_without_locking()
3057
def save_without_locking(self):
3058
super(LockableIniFileStore, self).save()
3061
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3062
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3063
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3065
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3066
# functions or a registry will make it easier and clearer for tests, focusing
3067
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3068
# on a poolie's remark)
3069
class GlobalStore(LockableIniFileStore):
3071
def __init__(self, possible_transports=None):
3072
t = transport.get_transport_from_path(
3073
config_dir(), possible_transports=possible_transports)
3074
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3078
class LocationStore(LockableIniFileStore):
3080
def __init__(self, possible_transports=None):
3081
t = transport.get_transport_from_path(
3082
config_dir(), possible_transports=possible_transports)
3083
super(LocationStore, self).__init__(t, 'locations.conf')
3084
self.id = 'locations'
3087
class BranchStore(TransportIniFileStore):
3089
def __init__(self, branch):
3090
super(BranchStore, self).__init__(branch.control_transport,
3092
self.branch = branch
3095
def lock_write(self, token=None):
3096
return self.branch.lock_write(token)
3099
return self.branch.unlock()
3103
# We need to be able to override the undecorated implementation
3104
self.save_without_locking()
3106
def save_without_locking(self):
3107
super(BranchStore, self).save()
3110
class ControlStore(LockableIniFileStore):
3112
def __init__(self, bzrdir):
3113
super(ControlStore, self).__init__(bzrdir.transport,
3115
lock_dir_name='branch_lock')
3118
class SectionMatcher(object):
3119
"""Select sections into a given Store.
3121
This is intended to be used to postpone getting an iterable of sections
3125
def __init__(self, store):
3128
def get_sections(self):
3129
# This is where we require loading the store so we can see all defined
3131
sections = self.store.get_sections()
3132
# Walk the revisions in the order provided
3133
for store, s in sections:
3137
def match(self, section):
3138
"""Does the proposed section match.
3140
:param section: A Section object.
3142
:returns: True if the section matches, False otherwise.
3144
raise NotImplementedError(self.match)
3147
class NameMatcher(SectionMatcher):
3149
def __init__(self, store, section_id):
3150
super(NameMatcher, self).__init__(store)
3151
self.section_id = section_id
3153
def match(self, section):
3154
return section.id == self.section_id
3157
class LocationSection(Section):
3159
def __init__(self, section, length, extra_path):
3160
super(LocationSection, self).__init__(section.id, section.options)
3161
self.length = length
3162
self.extra_path = extra_path
3163
self.locals = {'relpath': extra_path,
3164
'basename': urlutils.basename(extra_path)}
3166
def get(self, name, default=None, expand=True):
3167
value = super(LocationSection, self).get(name, default)
3168
if value is not None and expand:
3169
policy_name = self.get(name + ':policy', None)
3170
policy = _policy_value.get(policy_name, POLICY_NONE)
3171
if policy == POLICY_APPENDPATH:
3172
value = urlutils.join(value, self.extra_path)
3173
# expand section local options right now (since POLICY_APPENDPATH
3174
# will never add options references, it's ok to expand after it).
3176
for is_ref, chunk in iter_option_refs(value):
3178
chunks.append(chunk)
3181
if ref in self.locals:
3182
chunks.append(self.locals[ref])
3184
chunks.append(chunk)
3185
value = ''.join(chunks)
3189
class LocationMatcher(SectionMatcher):
3191
def __init__(self, store, location):
3192
super(LocationMatcher, self).__init__(store)
3193
if location.startswith('file://'):
3194
location = urlutils.local_path_from_url(location)
3195
self.location = location
3197
def _get_matching_sections(self):
3198
"""Get all sections matching ``location``."""
3199
# We slightly diverge from LocalConfig here by allowing the no-name
3200
# section as the most generic one and the lower priority.
3201
no_name_section = None
3203
# Filter out the no_name_section so _iter_for_location_by_parts can be
3204
# used (it assumes all sections have a name).
3205
for _, section in self.store.get_sections():
3206
if section.id is None:
3207
no_name_section = section
3209
all_sections.append(section)
3210
# Unfortunately _iter_for_location_by_parts deals with section names so
3211
# we have to resync.
3212
filtered_sections = _iter_for_location_by_parts(
3213
[s.id for s in all_sections], self.location)
3214
iter_all_sections = iter(all_sections)
3215
matching_sections = []
3216
if no_name_section is not None:
3217
matching_sections.append(
3218
LocationSection(no_name_section, 0, self.location))
3219
for section_id, extra_path, length in filtered_sections:
3220
# a section id is unique for a given store so it's safe to take the
3221
# first matching section while iterating. Also, all filtered
3222
# sections are part of 'all_sections' and will always be found
3225
section = iter_all_sections.next()
3226
if section_id == section.id:
3227
matching_sections.append(
3228
LocationSection(section, length, extra_path))
3230
return matching_sections
3232
def get_sections(self):
3233
# Override the default implementation as we want to change the order
3234
matching_sections = self._get_matching_sections()
3235
# We want the longest (aka more specific) locations first
3236
sections = sorted(matching_sections,
3237
key=lambda section: (section.length, section.id),
3239
# Sections mentioning 'ignore_parents' restrict the selection
3240
for section in sections:
3241
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3242
ignore = section.get('ignore_parents', None)
3243
if ignore is not None:
3244
ignore = ui.bool_from_string(ignore)
3247
# Finally, we have a valid section
3248
yield self.store, section
3251
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3252
"""Describes an expandable option reference.
3254
We want to match the most embedded reference first.
3256
I.e. for '{{foo}}' we will get '{foo}',
3257
for '{bar{baz}}' we will get '{baz}'
3260
def iter_option_refs(string):
3261
# Split isolate refs so every other chunk is a ref
3263
for chunk in _option_ref_re.split(string):
3268
class Stack(object):
3269
"""A stack of configurations where an option can be defined"""
3271
def __init__(self, sections_def, store=None, mutable_section_id=None):
3272
"""Creates a stack of sections with an optional store for changes.
3274
:param sections_def: A list of Section or callables that returns an
3275
iterable of Section. This defines the Sections for the Stack and
3276
can be called repeatedly if needed.
3278
:param store: The optional Store where modifications will be
3279
recorded. If none is specified, no modifications can be done.
3281
:param mutable_section_id: The id of the MutableSection where changes
3282
are recorded. This requires the ``store`` parameter to be
3285
self.sections_def = sections_def
3287
self.mutable_section_id = mutable_section_id
3289
def get(self, name, expand=None):
3290
"""Return the *first* option value found in the sections.
3292
This is where we guarantee that sections coming from Store are loaded
3293
lazily: the loading is delayed until we need to either check that an
3294
option exists or get its value, which in turn may require to discover
3295
in which sections it can be defined. Both of these (section and option
3296
existence) require loading the store (even partially).
3298
:param name: The queried option.
3300
:param expand: Whether options references should be expanded.
3302
:returns: The value of the option.
3304
# FIXME: No caching of options nor sections yet -- vila 20110503
3306
expand = _get_expand_default_value()
3308
# Ensuring lazy loading is achieved by delaying section matching (which
3309
# implies querying the persistent storage) until it can't be avoided
3310
# anymore by using callables to describe (possibly empty) section
3312
for sections in self.sections_def:
3313
for store, section in sections():
3314
value = section.get(name)
3315
if value is not None:
3317
if value is not None:
3319
# If the option is registered, it may provide additional info about
3322
opt = option_registry.get(name)
3326
def expand_and_convert(val):
3327
# This may need to be called twice if the value is None or ends up
3328
# being None during expansion or conversion.
3331
if isinstance(val, basestring):
3332
val = self._expand_options_in_string(val)
3334
trace.warning('Cannot expand "%s":'
3335
' %s does not support option expansion'
3336
% (name, type(val)))
3338
val = opt.convert_from_unicode(val)
3340
value = expand_and_convert(value)
3341
if opt is not None and value is None:
3342
# If the option is registered, it may provide a default value
3343
value = opt.get_default()
3344
value = expand_and_convert(value)
3345
for hook in ConfigHooks['get']:
3346
hook(self, name, value)
3349
def expand_options(self, string, env=None):
3350
"""Expand option references in the string in the configuration context.
3352
:param string: The string containing option(s) to expand.
3354
:param env: An option dict defining additional configuration options or
3355
overriding existing ones.
3357
:returns: The expanded string.
3359
return self._expand_options_in_string(string, env)
3361
def _expand_options_in_string(self, string, env=None, _refs=None):
3362
"""Expand options in the string in the configuration context.
3364
:param string: The string to be expanded.
3366
:param env: An option dict defining additional configuration options or
3367
overriding existing ones.
3369
:param _refs: Private list (FIFO) containing the options being expanded
3372
:returns: The expanded string.
3375
# Not much to expand there
3378
# What references are currently resolved (to detect loops)
3381
# We need to iterate until no more refs appear ({{foo}} will need two
3382
# iterations for example).
3387
for is_ref, chunk in iter_option_refs(result):
3389
chunks.append(chunk)
3394
raise errors.OptionExpansionLoop(string, _refs)
3396
value = self._expand_option(name, env, _refs)
3398
raise errors.ExpandingUnknownOption(name, string)
3399
chunks.append(value)
3401
result = ''.join(chunks)
3404
def _expand_option(self, name, env, _refs):
3405
if env is not None and name in env:
3406
# Special case, values provided in env takes precedence over
3410
value = self.get(name, expand=False)
3411
value = self._expand_options_in_string(value, env, _refs)
3414
def _get_mutable_section(self):
3415
"""Get the MutableSection for the Stack.
3417
This is where we guarantee that the mutable section is lazily loaded:
3418
this means we won't load the corresponding store before setting a value
3419
or deleting an option. In practice the store will often be loaded but
3420
this helps catching some programming errors.
3422
section = self.store.get_mutable_section(self.mutable_section_id)
3425
def set(self, name, value):
3426
"""Set a new value for the option."""
3427
section = self._get_mutable_section()
3428
section.set(name, value)
3429
for hook in ConfigHooks['set']:
3430
hook(self, name, value)
3432
def remove(self, name):
3433
"""Remove an existing option."""
3434
section = self._get_mutable_section()
3435
section.remove(name)
3436
for hook in ConfigHooks['remove']:
3440
# Mostly for debugging use
3441
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3443
def _get_overrides(self):
3444
# Hack around library_state.initialize never called
3445
if bzrlib.global_state is not None:
3446
return bzrlib.global_state.cmdline_overrides.get_sections()
3450
class _CompatibleStack(Stack):
3451
"""Place holder for compatibility with previous design.
3453
This is intended to ease the transition from the Config-based design to the
3454
Stack-based design and should not be used nor relied upon by plugins.
3456
One assumption made here is that the daughter classes will all use Stores
3457
derived from LockableIniFileStore).
3459
It implements set() and remove () by re-loading the store before applying
3460
the modification and saving it.
3462
The long term plan being to implement a single write by store to save
3463
all modifications, this class should not be used in the interim.
3466
def set(self, name, value):
3469
super(_CompatibleStack, self).set(name, value)
3470
# Force a write to persistent storage
3473
def remove(self, name):
3476
super(_CompatibleStack, self).remove(name)
3477
# Force a write to persistent storage
3481
class GlobalStack(_CompatibleStack):
3482
"""Global options only stack.
3484
The following sections are queried:
3486
* command-line overrides,
3488
* the 'DEFAULT' section in bazaar.conf
3490
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3495
gstore = GlobalStore()
3496
super(GlobalStack, self).__init__(
3497
[self._get_overrides,
3498
NameMatcher(gstore, 'DEFAULT').get_sections],
3499
gstore, mutable_section_id='DEFAULT')
3502
class LocationStack(_CompatibleStack):
3503
"""Per-location options falling back to global options stack.
3506
The following sections are queried:
3508
* command-line overrides,
3510
* the sections matching ``location`` in ``locations.conf``, the order being
3511
defined by the number of path components in the section glob, higher
3512
numbers first (from most specific section to most generic).
3514
* the 'DEFAULT' section in bazaar.conf
3516
This stack will use the ``location`` section in locations.conf as its
3520
def __init__(self, location):
3521
"""Make a new stack for a location and global configuration.
3523
:param location: A URL prefix to """
3524
lstore = LocationStore()
3525
if location.startswith('file://'):
3526
location = urlutils.local_path_from_url(location)
3527
gstore = GlobalStore()
3528
super(LocationStack, self).__init__(
3529
[self._get_overrides,
3530
LocationMatcher(lstore, location).get_sections,
3531
NameMatcher(gstore, 'DEFAULT').get_sections],
3532
lstore, mutable_section_id=location)
3535
class BranchStack(_CompatibleStack):
3536
"""Per-location options falling back to branch then global options stack.
3538
The following sections are queried:
3540
* command-line overrides,
3542
* the sections matching ``location`` in ``locations.conf``, the order being
3543
defined by the number of path components in the section glob, higher
3544
numbers first (from most specific section to most generic),
3546
* the no-name section in branch.conf,
3548
* the ``DEFAULT`` section in ``bazaar.conf``.
3550
This stack will use the no-name section in ``branch.conf`` as its
3554
def __init__(self, branch):
3555
lstore = LocationStore()
3556
bstore = branch._get_config_store()
3557
gstore = GlobalStore()
3558
super(BranchStack, self).__init__(
3559
[self._get_overrides,
3560
LocationMatcher(lstore, branch.base).get_sections,
3561
NameMatcher(bstore, None).get_sections,
3562
NameMatcher(gstore, 'DEFAULT').get_sections],
3564
self.branch = branch
3567
class RemoteControlStack(_CompatibleStack):
3568
"""Remote control-only options stack."""
3570
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3571
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3572
# control.conf and is used only for stack options.
3574
def __init__(self, bzrdir):
3575
cstore = bzrdir._get_config_store()
3576
super(RemoteControlStack, self).__init__(
3577
[NameMatcher(cstore, None).get_sections],
3579
self.bzrdir = bzrdir
3582
class RemoteBranchStack(_CompatibleStack):
3583
"""Remote branch-only options stack."""
3585
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3586
# with the stack used for remote branches. RemoteBranchStack only uses
3587
# branch.conf and is used only for the stack options.
3589
def __init__(self, branch):
3590
bstore = branch._get_config_store()
3591
super(RemoteBranchStack, self).__init__(
3592
[NameMatcher(bstore, None).get_sections],
3594
self.branch = branch
3596
# Use a an empty dict to initialize an empty configobj avoiding all
3597
# parsing and encoding checks
3598
_quoting_config = configobj.ConfigObj(
3599
{}, encoding='utf-8', interpolation=False)
3601
class cmd_config(commands.Command):
3602
__doc__ = """Display, set or remove a configuration option.
3604
Display the active value for a given option.
3606
If --all is specified, NAME is interpreted as a regular expression and all
3607
matching options are displayed mentioning their scope. The active value
3608
that bzr will take into account is the first one displayed for each option.
3610
If no NAME is given, --all .* is implied.
3612
Setting a value is achieved by using name=value without spaces. The value
3613
is set in the most relevant scope and can be checked by displaying the
3617
takes_args = ['name?']
3621
# FIXME: This should be a registry option so that plugins can register
3622
# their own config files (or not) and will also address
3623
# http://pad.lv/788991 -- vila 20101115
3624
commands.Option('scope', help='Reduce the scope to the specified'
3625
' configuration file.',
3627
commands.Option('all',
3628
help='Display all the defined values for the matching options.',
3630
commands.Option('remove', help='Remove the option from'
3631
' the configuration file.'),
3634
_see_also = ['configuration']
3636
@commands.display_command
3637
def run(self, name=None, all=False, directory=None, scope=None,
3639
if directory is None:
3641
directory = urlutils.normalize_url(directory)
3643
raise errors.BzrError(
3644
'--all and --remove are mutually exclusive.')
3646
# Delete the option in the given scope
3647
self._remove_config_option(name, directory, scope)
3649
# Defaults to all options
3650
self._show_matching_options('.*', directory, scope)
3653
name, value = name.split('=', 1)
3655
# Display the option(s) value(s)
3657
self._show_matching_options(name, directory, scope)
3659
self._show_value(name, directory, scope)
3662
raise errors.BzrError(
3663
'Only one option can be set.')
3664
# Set the option value
3665
self._set_config_option(name, value, directory, scope)
3667
def _get_stack(self, directory, scope=None):
3668
"""Get the configuration stack specified by ``directory`` and ``scope``.
3670
:param directory: Where the configurations are derived from.
3672
:param scope: A specific config to start from.
3674
# FIXME: scope should allow access to plugin-specific stacks (even
3675
# reduced to the plugin-specific store), related to
3676
# http://pad.lv/788991 -- vila 2011-11-15
3677
if scope is not None:
3678
if scope == 'bazaar':
3679
return GlobalStack()
3680
elif scope == 'locations':
3681
return LocationStack(directory)
3682
elif scope == 'branch':
3684
controldir.ControlDir.open_containing_tree_or_branch(
3686
return br.get_config_stack()
3687
raise errors.NoSuchConfig(scope)
3691
controldir.ControlDir.open_containing_tree_or_branch(
3693
return br.get_config_stack()
3694
except errors.NotBranchError:
3695
return LocationStack(directory)
3697
def _show_value(self, name, directory, scope):
3698
conf = self._get_stack(directory, scope)
3699
value = conf.get(name, expand=True)
3700
if value is not None:
3701
# Quote the value appropriately
3702
value = _quoting_config._quote(value)
3703
self.outf.write('%s\n' % (value,))
3705
raise errors.NoSuchConfigOption(name)
3707
def _show_matching_options(self, name, directory, scope):
3708
name = lazy_regex.lazy_compile(name)
3709
# We want any error in the regexp to be raised *now* so we need to
3710
# avoid the delay introduced by the lazy regexp. But, we still do
3711
# want the nicer errors raised by lazy_regex.
3712
name._compile_and_collapse()
3715
conf = self._get_stack(directory, scope)
3716
for sections in conf.sections_def:
3717
for store, section in sections():
3718
for oname in section.iter_option_names():
3719
if name.search(oname):
3720
if cur_store_id != store.id:
3721
# Explain where the options are defined
3722
self.outf.write('%s:\n' % (store.id,))
3723
cur_store_id = store.id
3725
if (section.id not in (None, 'DEFAULT')
3726
and cur_section != section.id):
3727
# Display the section if it's not the default (or
3729
self.outf.write(' [%s]\n' % (section.id,))
3730
cur_section = section.id
3731
value = section.get(oname, expand=False)
3732
value = _quoting_config._quote(value)
3733
self.outf.write(' %s = %s\n' % (oname, value))
3735
def _set_config_option(self, name, value, directory, scope):
3736
conf = self._get_stack(directory, scope)
3737
conf.set(name, value)
3739
def _remove_config_option(self, name, directory, scope):
3741
raise errors.BzrCommandError(
3742
'--remove expects an option to remove.')
3743
conf = self._get_stack(directory, scope)
3747
raise errors.NoSuchConfigOption(name)
3752
# We need adapters that can build a Store or a Stack in a test context. Test
3753
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3754
# themselves. The builder will receive a test instance and should return a
3755
# ready-to-use store or stack. Plugins that define new store/stacks can also
3756
# register themselves here to be tested against the tests defined in
3757
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3758
# for the same test.
3760
# The registered object should be a callable receiving a test instance
3761
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3763
test_store_builder_registry = registry.Registry()
3765
# The registered object should be a callable receiving a test instance
3766
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3768
test_stack_builder_registry = registry.Registry()