1508
2278
configobj[name] = value
1510
2280
configobj.setdefault(section, {})[name] = value
2281
for hook in OldConfigHooks['set']:
2282
hook(self, name, value)
2283
self._set_configobj(configobj)
2285
def remove_option(self, option_name, section_name=None):
2286
configobj = self._get_configobj()
2287
if section_name is None:
2288
del configobj[option_name]
2290
del configobj[section_name][option_name]
2291
for hook in OldConfigHooks['remove']:
2292
hook(self, option_name)
1511
2293
self._set_configobj(configobj)
1513
2295
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2297
f = StringIO(self._transport.get_bytes(self._filename))
2298
for hook in OldConfigHooks['load']:
1516
2301
except errors.NoSuchFile:
1517
2302
return StringIO()
2303
except errors.PermissionDenied, e:
2304
trace.warning("Permission denied while trying to open "
2305
"configuration file %s.", urlutils.unescape_for_display(
2306
urlutils.join(self._transport.base, self._filename), "utf-8"))
2309
def _external_url(self):
2310
return urlutils.join(self._transport.external_url(), self._filename)
1519
2312
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2313
f = self._get_config_file()
2316
conf = ConfigObj(f, encoding='utf-8')
2317
except configobj.ConfigObjError, e:
2318
raise errors.ParseConfigError(e.errors, self._external_url())
2319
except UnicodeDecodeError:
2320
raise errors.ConfigContentError(self._external_url())
1522
2325
def _set_configobj(self, configobj):
1523
2326
out_file = StringIO()
1524
2327
configobj.write(out_file)
1525
2328
out_file.seek(0)
1526
2329
self._transport.put_file(self._filename, out_file)
2330
for hook in OldConfigHooks['save']:
2334
class Option(object):
2335
"""An option definition.
2337
The option *values* are stored in config files and found in sections.
2339
Here we define various properties about the option itself, its default
2340
value, how to convert it from stores, what to do when invalid values are
2341
encoutered, in which config files it can be stored.
2344
def __init__(self, name, default=None, default_from_env=None,
2345
help=None, from_unicode=None, invalid=None):
2346
"""Build an option definition.
2348
:param name: the name used to refer to the option.
2350
:param default: the default value to use when none exist in the config
2351
stores. This is either a string that ``from_unicode`` will convert
2352
into the proper type, a callable returning a unicode string so that
2353
``from_unicode`` can be used on the return value, or a python
2354
object that can be stringified (so only the empty list is supported
2357
:param default_from_env: A list of environment variables which can
2358
provide a default value. 'default' will be used only if none of the
2359
variables specified here are set in the environment.
2361
:param help: a doc string to explain the option to the user.
2363
:param from_unicode: a callable to convert the unicode string
2364
representing the option value in a store. This is not called for
2367
:param invalid: the action to be taken when an invalid value is
2368
encountered in a store. This is called only when from_unicode is
2369
invoked to convert a string and returns None or raise ValueError or
2370
TypeError. Accepted values are: None (ignore invalid values),
2371
'warning' (emit a warning), 'error' (emit an error message and
2374
if default_from_env is None:
2375
default_from_env = []
2377
# Convert the default value to a unicode string so all values are
2378
# strings internally before conversion (via from_unicode) is attempted.
2381
elif isinstance(default, list):
2382
# Only the empty list is supported
2384
raise AssertionError(
2385
'Only empty lists are supported as default values')
2387
elif isinstance(default, (str, unicode, bool, int, float)):
2388
# Rely on python to convert strings, booleans and integers
2389
self.default = u'%s' % (default,)
2390
elif callable(default):
2391
self.default = default
2393
# other python objects are not expected
2394
raise AssertionError('%r is not supported as a default value'
2396
self.default_from_env = default_from_env
2398
self.from_unicode = from_unicode
2399
if invalid and invalid not in ('warning', 'error'):
2400
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2401
self.invalid = invalid
2403
def convert_from_unicode(self, unicode_value):
2404
if self.from_unicode is None or unicode_value is None:
2405
# Don't convert or nothing to convert
2406
return unicode_value
2408
converted = self.from_unicode(unicode_value)
2409
except (ValueError, TypeError):
2410
# Invalid values are ignored
2412
if converted is None and self.invalid is not None:
2413
# The conversion failed
2414
if self.invalid == 'warning':
2415
trace.warning('Value "%s" is not valid for "%s"',
2416
unicode_value, self.name)
2417
elif self.invalid == 'error':
2418
raise errors.ConfigOptionValueError(self.name, unicode_value)
2421
def get_default(self):
2423
for var in self.default_from_env:
2425
# If the env variable is defined, its value is the default one
2426
value = os.environ[var].decode(osutils.get_user_encoding())
2431
# Otherwise, fallback to the value defined at registration
2432
if callable(self.default):
2433
value = self.default()
2434
if not isinstance(value, unicode):
2435
raise AssertionError(
2436
'Callable default values should be unicode')
2438
value = self.default
2441
def get_help_text(self, additional_see_also=None, plain=True):
2443
from bzrlib import help_topics
2444
result += help_topics._format_see_also(additional_see_also)
2446
result = help_topics.help_as_plain_text(result)
2450
# Predefined converters to get proper values from store
2452
def bool_from_store(unicode_str):
2453
return ui.bool_from_string(unicode_str)
2456
def int_from_store(unicode_str):
2457
return int(unicode_str)
2460
def float_from_store(unicode_str):
2461
return float(unicode_str)
2464
# Use a an empty dict to initialize an empty configobj avoiding all
2465
# parsing and encoding checks
2466
_list_converter_config = configobj.ConfigObj(
2467
{}, encoding='utf-8', list_values=True, interpolation=False)
2470
def list_from_store(unicode_str):
2471
if not isinstance(unicode_str, basestring):
2473
# Now inject our string directly as unicode. All callers got their value
2474
# from configobj, so values that need to be quoted are already properly
2476
_list_converter_config.reset()
2477
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2478
maybe_list = _list_converter_config['list']
2479
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2480
if isinstance(maybe_list, basestring):
2482
# A single value, most probably the user forgot (or didn't care to
2483
# add) the final ','
2486
# The empty string, convert to empty list
2489
# We rely on ConfigObj providing us with a list already
2494
class OptionRegistry(registry.Registry):
2495
"""Register config options by their name.
2497
This overrides ``registry.Registry`` to simplify registration by acquiring
2498
some information from the option object itself.
2501
def register(self, option):
2502
"""Register a new option to its name.
2504
:param option: The option to register. Its name is used as the key.
2506
super(OptionRegistry, self).register(option.name, option,
2509
def register_lazy(self, key, module_name, member_name):
2510
"""Register a new option to be loaded on request.
2512
:param key: the key to request the option later. Since the registration
2513
is lazy, it should be provided and match the option name.
2515
:param module_name: the python path to the module. Such as 'os.path'.
2517
:param member_name: the member of the module to return. If empty or
2518
None, get() will return the module itself.
2520
super(OptionRegistry, self).register_lazy(key,
2521
module_name, member_name)
2523
def get_help(self, key=None):
2524
"""Get the help text associated with the given key"""
2525
option = self.get(key)
2526
the_help = option.help
2527
if callable(the_help):
2528
return the_help(self, key)
2532
option_registry = OptionRegistry()
2535
# Registered options in lexicographical order
2537
option_registry.register(
2538
Option('append_revisions_only',
2539
default=None, from_unicode=bool_from_store, invalid='warning',
2541
Whether to only append revisions to the mainline.
2543
If this is set to true, then it is not possible to change the
2544
existing mainline of the branch.
2546
option_registry.register(
2547
Option('acceptable_keys',
2548
default=None, from_unicode=list_from_store,
2550
List of GPG key patterns which are acceptable for verification.
2552
option_registry.register(
2553
Option('bzr.workingtree.worth_saving_limit', default=10,
2554
from_unicode=int_from_store, invalid='warning',
2556
How many changes before saving the dirstate.
2558
-1 means that we will never rewrite the dirstate file for only
2559
stat-cache changes. Regardless of this setting, we will always rewrite
2560
the dirstate file if a file is added/removed/renamed/etc. This flag only
2561
affects the behavior of updating the dirstate file after we notice that
2562
a file has been touched.
2564
option_registry.register(
2565
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2566
from_unicode=signature_policy_from_unicode,
2568
GPG checking policy.
2570
Possible values: require, ignore, check-available (default)
2572
this option will control whether bzr will require good gpg
2573
signatures, ignore them, or check them if they are
2576
option_registry.register(
2577
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2578
from_unicode=signing_policy_from_unicode,
2582
Possible values: always, never, when-required (default)
2584
This option controls whether bzr will always create
2585
gpg signatures or not on commits.
2587
option_registry.register(
2588
Option('dirstate.fdatasync', default=True,
2589
from_unicode=bool_from_store,
2591
Flush dirstate changes onto physical disk?
2593
If true (default), working tree metadata changes are flushed through the
2594
OS buffers to physical disk. This is somewhat slower, but means data
2595
should not be lost if the machine crashes. See also repository.fdatasync.
2597
option_registry.register(
2598
Option('debug_flags', default=[], from_unicode=list_from_store,
2599
help='Debug flags to activate.'))
2600
option_registry.register(
2601
Option('default_format', default='2a',
2602
help='Format used when creating branches.'))
2603
option_registry.register(
2604
Option('dpush_strict', default=None,
2605
from_unicode=bool_from_store,
2607
The default value for ``dpush --strict``.
2609
If present, defines the ``--strict`` option default value for checking
2610
uncommitted changes before pushing into a different VCS without any
2611
custom bzr metadata.
2613
option_registry.register(
2615
help='The command called to launch an editor to enter a message.'))
2616
option_registry.register(
2617
Option('email', default=default_email,
2618
from_unicode=email_from_store,
2619
help='The users identity'))
2620
option_registry.register(
2621
Option('gpg_signing_command',
2624
Program to use use for creating signatures.
2626
This should support at least the -u and --clearsign options.
2628
option_registry.register(
2629
Option('gpg_signing_key',
2632
GPG key to use for signing.
2634
This defaults to the first key associated with the users email.
2636
option_registry.register(
2637
Option('ignore_missing_extensions', default=False,
2638
from_unicode=bool_from_store,
2640
Control the missing extensions warning display.
2642
The warning will not be emitted if set to True.
2644
option_registry.register(
2646
help='Language to translate messages into.'))
2647
option_registry.register(
2648
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2650
Steal locks that appears to be dead.
2652
If set to True, bzr will check if a lock is supposed to be held by an
2653
active process from the same user on the same machine. If the user and
2654
machine match, but no process with the given PID is active, then bzr
2655
will automatically break the stale lock, and create a new lock for
2657
Otherwise, bzr will prompt as normal to break the lock.
2659
option_registry.register(
2660
Option('log_format', default='long',
2662
Log format to use when displaying revisions.
2664
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2665
may be provided by plugins.
2667
option_registry.register(
2668
Option('output_encoding',
2669
help= 'Unicode encoding for output'
2670
' (terminal encoding if not specified).'))
2671
option_registry.register(
2672
Option('post_commit', default=None,
2674
Post commit functions.
2676
An ordered list of python functions to call, separated by spaces.
2678
Each function takes branch, rev_id as parameters.
2680
option_registry.register(
2681
Option('push_strict', default=None,
2682
from_unicode=bool_from_store,
2684
The default value for ``push --strict``.
2686
If present, defines the ``--strict`` option default value for checking
2687
uncommitted changes before sending a merge directive.
2689
option_registry.register(
2690
Option('repository.fdatasync', default=True,
2691
from_unicode=bool_from_store,
2693
Flush repository changes onto physical disk?
2695
If true (default), repository changes are flushed through the OS buffers
2696
to physical disk. This is somewhat slower, but means data should not be
2697
lost if the machine crashes. See also dirstate.fdatasync.
2700
option_registry.register(
2701
Option('selftest.timeout',
2703
from_unicode=int_from_store,
2704
help='Abort selftest if one test takes longer than this many seconds',
2707
option_registry.register(
2708
Option('send_strict', default=None,
2709
from_unicode=bool_from_store,
2711
The default value for ``send --strict``.
2713
If present, defines the ``--strict`` option default value for checking
2714
uncommitted changes before pushing.
2717
option_registry.register(
2718
Option('serve.client_timeout',
2719
default=300.0, from_unicode=float_from_store,
2720
help="If we wait for a new request from a client for more than"
2721
" X seconds, consider the client idle, and hangup."))
2724
class Section(object):
2725
"""A section defines a dict of option name => value.
2727
This is merely a read-only dict which can add some knowledge about the
2728
options. It is *not* a python dict object though and doesn't try to mimic
2732
def __init__(self, section_id, options):
2733
self.id = section_id
2734
# We re-use the dict-like object received
2735
self.options = options
2737
def get(self, name, default=None, expand=True):
2738
return self.options.get(name, default)
2740
def iter_option_names(self):
2741
for k in self.options.iterkeys():
2745
# Mostly for debugging use
2746
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2749
_NewlyCreatedOption = object()
2750
"""Was the option created during the MutableSection lifetime"""
2753
class MutableSection(Section):
2754
"""A section allowing changes and keeping track of the original values."""
2756
def __init__(self, section_id, options):
2757
super(MutableSection, self).__init__(section_id, options)
2760
def set(self, name, value):
2761
if name not in self.options:
2762
# This is a new option
2763
self.orig[name] = _NewlyCreatedOption
2764
elif name not in self.orig:
2765
self.orig[name] = self.get(name, None)
2766
self.options[name] = value
2768
def remove(self, name):
2769
if name not in self.orig:
2770
self.orig[name] = self.get(name, None)
2771
del self.options[name]
2774
class Store(object):
2775
"""Abstract interface to persistent storage for configuration options."""
2777
readonly_section_class = Section
2778
mutable_section_class = MutableSection
2780
def is_loaded(self):
2781
"""Returns True if the Store has been loaded.
2783
This is used to implement lazy loading and ensure the persistent
2784
storage is queried only when needed.
2786
raise NotImplementedError(self.is_loaded)
2789
"""Loads the Store from persistent storage."""
2790
raise NotImplementedError(self.load)
2792
def _load_from_string(self, bytes):
2793
"""Create a store from a string in configobj syntax.
2795
:param bytes: A string representing the file content.
2797
raise NotImplementedError(self._load_from_string)
2800
"""Unloads the Store.
2802
This should make is_loaded() return False. This is used when the caller
2803
knows that the persistent storage has changed or may have change since
2806
raise NotImplementedError(self.unload)
2809
"""Saves the Store to persistent storage."""
2810
raise NotImplementedError(self.save)
2812
def external_url(self):
2813
raise NotImplementedError(self.external_url)
2815
def get_sections(self):
2816
"""Returns an ordered iterable of existing sections.
2818
:returns: An iterable of (store, section).
2820
raise NotImplementedError(self.get_sections)
2822
def get_mutable_section(self, section_id=None):
2823
"""Returns the specified mutable section.
2825
:param section_id: The section identifier
2827
raise NotImplementedError(self.get_mutable_section)
2830
# Mostly for debugging use
2831
return "<config.%s(%s)>" % (self.__class__.__name__,
2832
self.external_url())
2835
class CommandLineStore(Store):
2836
"A store to carry command line overrides for the config options."""
2838
def __init__(self, opts=None):
2839
super(CommandLineStore, self).__init__()
2845
# The dict should be cleared but not replaced so it can be shared.
2846
self.options.clear()
2848
def _from_cmdline(self, overrides):
2849
# Reset before accepting new definitions
2851
for over in overrides:
2853
name, value = over.split('=', 1)
2855
raise errors.BzrCommandError(
2856
gettext("Invalid '%s', should be of the form 'name=value'")
2858
self.options[name] = value
2860
def external_url(self):
2861
# Not an url but it makes debugging easier and is never needed
2865
def get_sections(self):
2866
yield self, self.readonly_section_class('cmdline_overrides',
2870
class IniFileStore(Store):
2871
"""A config Store using ConfigObj for storage.
2873
:ivar transport: The transport object where the config file is located.
2875
:ivar file_name: The config file basename in the transport directory.
2877
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2878
serialize/deserialize the config file.
2882
"""A config Store using ConfigObj for storage.
2884
super(IniFileStore, self).__init__()
2885
self._config_obj = None
2887
def is_loaded(self):
2888
return self._config_obj != None
2891
self._config_obj = None
2893
def _load_content(self):
2894
"""Load the config file bytes.
2896
This should be provided by subclasses
2898
:return: Byte string
2900
raise NotImplementedError(self._load_content)
2902
def _save_content(self, content):
2903
"""Save the config file bytes.
2905
This should be provided by subclasses
2907
:param content: Config file bytes to write
2909
raise NotImplementedError(self._save_content)
2912
"""Load the store from the associated file."""
2913
if self.is_loaded():
2915
content = self._load_content()
2916
self._load_from_string(content)
2917
for hook in ConfigHooks['load']:
2920
def _load_from_string(self, bytes):
2921
"""Create a config store from a string.
2923
:param bytes: A string representing the file content.
2925
if self.is_loaded():
2926
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2927
co_input = StringIO(bytes)
2929
# The config files are always stored utf8-encoded
2930
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2932
except configobj.ConfigObjError, e:
2933
self._config_obj = None
2934
raise errors.ParseConfigError(e.errors, self.external_url())
2935
except UnicodeDecodeError:
2936
raise errors.ConfigContentError(self.external_url())
2939
if not self.is_loaded():
2943
self._config_obj.write(out)
2944
self._save_content(out.getvalue())
2945
for hook in ConfigHooks['save']:
2948
def get_sections(self):
2949
"""Get the configobj section in the file order.
2951
:returns: An iterable of (store, section).
2953
# We need a loaded store
2956
except (errors.NoSuchFile, errors.PermissionDenied):
2957
# If the file can't be read, there is no sections
2959
cobj = self._config_obj
2961
yield self, self.readonly_section_class(None, cobj)
2962
for section_name in cobj.sections:
2964
self.readonly_section_class(section_name,
2965
cobj[section_name]))
2967
def get_mutable_section(self, section_id=None):
2968
# We need a loaded store
2971
except errors.NoSuchFile:
2972
# The file doesn't exist, let's pretend it was empty
2973
self._load_from_string('')
2974
if section_id is None:
2975
section = self._config_obj
2977
section = self._config_obj.setdefault(section_id, {})
2978
return self.mutable_section_class(section_id, section)
2981
class TransportIniFileStore(IniFileStore):
2982
"""IniFileStore that loads files from a transport.
2985
def __init__(self, transport, file_name):
2986
"""A Store using a ini file on a Transport
2988
:param transport: The transport object where the config file is located.
2989
:param file_name: The config file basename in the transport directory.
2991
super(TransportIniFileStore, self).__init__()
2992
self.transport = transport
2993
self.file_name = file_name
2995
def _load_content(self):
2997
return self.transport.get_bytes(self.file_name)
2998
except errors.PermissionDenied:
2999
trace.warning("Permission denied while trying to load "
3000
"configuration store %s.", self.external_url())
3003
def _save_content(self, content):
3004
self.transport.put_bytes(self.file_name, content)
3006
def external_url(self):
3007
# FIXME: external_url should really accepts an optional relpath
3008
# parameter (bug #750169) :-/ -- vila 2011-04-04
3009
# The following will do in the interim but maybe we don't want to
3010
# expose a path here but rather a config ID and its associated
3011
# object </hand wawe>.
3012
return urlutils.join(self.transport.external_url(), self.file_name)
3015
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3016
# unlockable stores for use with objects that can already ensure the locking
3017
# (think branches). If different stores (not based on ConfigObj) are created,
3018
# they may face the same issue.
3021
class LockableIniFileStore(TransportIniFileStore):
3022
"""A ConfigObjStore using locks on save to ensure store integrity."""
3024
def __init__(self, transport, file_name, lock_dir_name=None):
3025
"""A config Store using ConfigObj for storage.
3027
:param transport: The transport object where the config file is located.
3029
:param file_name: The config file basename in the transport directory.
3031
if lock_dir_name is None:
3032
lock_dir_name = 'lock'
3033
self.lock_dir_name = lock_dir_name
3034
super(LockableIniFileStore, self).__init__(transport, file_name)
3035
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3037
def lock_write(self, token=None):
3038
"""Takes a write lock in the directory containing the config file.
3040
If the directory doesn't exist it is created.
3042
# FIXME: This doesn't check the ownership of the created directories as
3043
# ensure_config_dir_exists does. It should if the transport is local
3044
# -- vila 2011-04-06
3045
self.transport.create_prefix()
3046
return self._lock.lock_write(token)
3051
def break_lock(self):
3052
self._lock.break_lock()
3056
# We need to be able to override the undecorated implementation
3057
self.save_without_locking()
3059
def save_without_locking(self):
3060
super(LockableIniFileStore, self).save()
3063
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3064
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3065
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3067
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3068
# functions or a registry will make it easier and clearer for tests, focusing
3069
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3070
# on a poolie's remark)
3071
class GlobalStore(LockableIniFileStore):
3073
def __init__(self, possible_transports=None):
3074
t = transport.get_transport_from_path(
3075
config_dir(), possible_transports=possible_transports)
3076
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3080
class LocationStore(LockableIniFileStore):
3082
def __init__(self, possible_transports=None):
3083
t = transport.get_transport_from_path(
3084
config_dir(), possible_transports=possible_transports)
3085
super(LocationStore, self).__init__(t, 'locations.conf')
3086
self.id = 'locations'
3089
class BranchStore(TransportIniFileStore):
3091
def __init__(self, branch):
3092
super(BranchStore, self).__init__(branch.control_transport,
3094
self.branch = branch
3097
def lock_write(self, token=None):
3098
return self.branch.lock_write(token)
3101
return self.branch.unlock()
3105
# We need to be able to override the undecorated implementation
3106
self.save_without_locking()
3108
def save_without_locking(self):
3109
super(BranchStore, self).save()
3112
class ControlStore(LockableIniFileStore):
3114
def __init__(self, bzrdir):
3115
super(ControlStore, self).__init__(bzrdir.transport,
3117
lock_dir_name='branch_lock')
3120
class SectionMatcher(object):
3121
"""Select sections into a given Store.
3123
This is intended to be used to postpone getting an iterable of sections
3127
def __init__(self, store):
3130
def get_sections(self):
3131
# This is where we require loading the store so we can see all defined
3133
sections = self.store.get_sections()
3134
# Walk the revisions in the order provided
3135
for store, s in sections:
3139
def match(self, section):
3140
"""Does the proposed section match.
3142
:param section: A Section object.
3144
:returns: True if the section matches, False otherwise.
3146
raise NotImplementedError(self.match)
3149
class NameMatcher(SectionMatcher):
3151
def __init__(self, store, section_id):
3152
super(NameMatcher, self).__init__(store)
3153
self.section_id = section_id
3155
def match(self, section):
3156
return section.id == self.section_id
3159
class LocationSection(Section):
3161
def __init__(self, section, length, extra_path):
3162
super(LocationSection, self).__init__(section.id, section.options)
3163
self.length = length
3164
self.extra_path = extra_path
3165
self.locals = {'relpath': extra_path,
3166
'basename': urlutils.basename(extra_path)}
3168
def get(self, name, default=None, expand=True):
3169
value = super(LocationSection, self).get(name, default)
3170
if value is not None and expand:
3171
policy_name = self.get(name + ':policy', None)
3172
policy = _policy_value.get(policy_name, POLICY_NONE)
3173
if policy == POLICY_APPENDPATH:
3174
value = urlutils.join(value, self.extra_path)
3175
# expand section local options right now (since POLICY_APPENDPATH
3176
# will never add options references, it's ok to expand after it).
3178
for is_ref, chunk in iter_option_refs(value):
3180
chunks.append(chunk)
3183
if ref in self.locals:
3184
chunks.append(self.locals[ref])
3186
chunks.append(chunk)
3187
value = ''.join(chunks)
3191
class LocationMatcher(SectionMatcher):
3193
def __init__(self, store, location):
3194
super(LocationMatcher, self).__init__(store)
3195
if location.startswith('file://'):
3196
location = urlutils.local_path_from_url(location)
3197
self.location = location
3199
def _get_matching_sections(self):
3200
"""Get all sections matching ``location``."""
3201
# We slightly diverge from LocalConfig here by allowing the no-name
3202
# section as the most generic one and the lower priority.
3203
no_name_section = None
3205
# Filter out the no_name_section so _iter_for_location_by_parts can be
3206
# used (it assumes all sections have a name).
3207
for _, section in self.store.get_sections():
3208
if section.id is None:
3209
no_name_section = section
3211
all_sections.append(section)
3212
# Unfortunately _iter_for_location_by_parts deals with section names so
3213
# we have to resync.
3214
filtered_sections = _iter_for_location_by_parts(
3215
[s.id for s in all_sections], self.location)
3216
iter_all_sections = iter(all_sections)
3217
matching_sections = []
3218
if no_name_section is not None:
3219
matching_sections.append(
3220
LocationSection(no_name_section, 0, self.location))
3221
for section_id, extra_path, length in filtered_sections:
3222
# a section id is unique for a given store so it's safe to take the
3223
# first matching section while iterating. Also, all filtered
3224
# sections are part of 'all_sections' and will always be found
3227
section = iter_all_sections.next()
3228
if section_id == section.id:
3229
matching_sections.append(
3230
LocationSection(section, length, extra_path))
3232
return matching_sections
3234
def get_sections(self):
3235
# Override the default implementation as we want to change the order
3236
matching_sections = self._get_matching_sections()
3237
# We want the longest (aka more specific) locations first
3238
sections = sorted(matching_sections,
3239
key=lambda section: (section.length, section.id),
3241
# Sections mentioning 'ignore_parents' restrict the selection
3242
for section in sections:
3243
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3244
ignore = section.get('ignore_parents', None)
3245
if ignore is not None:
3246
ignore = ui.bool_from_string(ignore)
3249
# Finally, we have a valid section
3250
yield self.store, section
3253
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3254
"""Describes an expandable option reference.
3256
We want to match the most embedded reference first.
3258
I.e. for '{{foo}}' we will get '{foo}',
3259
for '{bar{baz}}' we will get '{baz}'
3262
def iter_option_refs(string):
3263
# Split isolate refs so every other chunk is a ref
3265
for chunk in _option_ref_re.split(string):
3270
class Stack(object):
3271
"""A stack of configurations where an option can be defined"""
3273
def __init__(self, sections_def, store=None, mutable_section_id=None):
3274
"""Creates a stack of sections with an optional store for changes.
3276
:param sections_def: A list of Section or callables that returns an
3277
iterable of Section. This defines the Sections for the Stack and
3278
can be called repeatedly if needed.
3280
:param store: The optional Store where modifications will be
3281
recorded. If none is specified, no modifications can be done.
3283
:param mutable_section_id: The id of the MutableSection where changes
3284
are recorded. This requires the ``store`` parameter to be
3287
self.sections_def = sections_def
3289
self.mutable_section_id = mutable_section_id
3291
def get(self, name, expand=None):
3292
"""Return the *first* option value found in the sections.
3294
This is where we guarantee that sections coming from Store are loaded
3295
lazily: the loading is delayed until we need to either check that an
3296
option exists or get its value, which in turn may require to discover
3297
in which sections it can be defined. Both of these (section and option
3298
existence) require loading the store (even partially).
3300
:param name: The queried option.
3302
:param expand: Whether options references should be expanded.
3304
:returns: The value of the option.
3306
# FIXME: No caching of options nor sections yet -- vila 20110503
3308
expand = _get_expand_default_value()
3310
# Ensuring lazy loading is achieved by delaying section matching (which
3311
# implies querying the persistent storage) until it can't be avoided
3312
# anymore by using callables to describe (possibly empty) section
3314
for sections in self.sections_def:
3315
for store, section in sections():
3316
value = section.get(name)
3317
if value is not None:
3319
if value is not None:
3321
# If the option is registered, it may provide additional info about
3324
opt = option_registry.get(name)
3328
def expand_and_convert(val):
3329
# This may need to be called twice if the value is None or ends up
3330
# being None during expansion or conversion.
3333
if isinstance(val, basestring):
3334
val = self._expand_options_in_string(val)
3336
trace.warning('Cannot expand "%s":'
3337
' %s does not support option expansion'
3338
% (name, type(val)))
3340
val = opt.convert_from_unicode(val)
3342
value = expand_and_convert(value)
3343
if opt is not None and value is None:
3344
# If the option is registered, it may provide a default value
3345
value = opt.get_default()
3346
value = expand_and_convert(value)
3347
for hook in ConfigHooks['get']:
3348
hook(self, name, value)
3351
def expand_options(self, string, env=None):
3352
"""Expand option references in the string in the configuration context.
3354
:param string: The string containing option(s) to expand.
3356
:param env: An option dict defining additional configuration options or
3357
overriding existing ones.
3359
:returns: The expanded string.
3361
return self._expand_options_in_string(string, env)
3363
def _expand_options_in_string(self, string, env=None, _refs=None):
3364
"""Expand options in the string in the configuration context.
3366
:param string: The string to be expanded.
3368
:param env: An option dict defining additional configuration options or
3369
overriding existing ones.
3371
:param _refs: Private list (FIFO) containing the options being expanded
3374
:returns: The expanded string.
3377
# Not much to expand there
3380
# What references are currently resolved (to detect loops)
3383
# We need to iterate until no more refs appear ({{foo}} will need two
3384
# iterations for example).
3389
for is_ref, chunk in iter_option_refs(result):
3391
chunks.append(chunk)
3396
raise errors.OptionExpansionLoop(string, _refs)
3398
value = self._expand_option(name, env, _refs)
3400
raise errors.ExpandingUnknownOption(name, string)
3401
chunks.append(value)
3403
result = ''.join(chunks)
3406
def _expand_option(self, name, env, _refs):
3407
if env is not None and name in env:
3408
# Special case, values provided in env takes precedence over
3412
value = self.get(name, expand=False)
3413
value = self._expand_options_in_string(value, env, _refs)
3416
def _get_mutable_section(self):
3417
"""Get the MutableSection for the Stack.
3419
This is where we guarantee that the mutable section is lazily loaded:
3420
this means we won't load the corresponding store before setting a value
3421
or deleting an option. In practice the store will often be loaded but
3422
this helps catching some programming errors.
3424
section = self.store.get_mutable_section(self.mutable_section_id)
3427
def set(self, name, value):
3428
"""Set a new value for the option."""
3429
section = self._get_mutable_section()
3430
section.set(name, value)
3431
for hook in ConfigHooks['set']:
3432
hook(self, name, value)
3434
def remove(self, name):
3435
"""Remove an existing option."""
3436
section = self._get_mutable_section()
3437
section.remove(name)
3438
for hook in ConfigHooks['remove']:
3442
# Mostly for debugging use
3443
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3445
def _get_overrides(self):
3446
# Hack around library_state.initialize never called
3447
if bzrlib.global_state is not None:
3448
return bzrlib.global_state.cmdline_overrides.get_sections()
3452
class _CompatibleStack(Stack):
3453
"""Place holder for compatibility with previous design.
3455
This is intended to ease the transition from the Config-based design to the
3456
Stack-based design and should not be used nor relied upon by plugins.
3458
One assumption made here is that the daughter classes will all use Stores
3459
derived from LockableIniFileStore).
3461
It implements set() and remove () by re-loading the store before applying
3462
the modification and saving it.
3464
The long term plan being to implement a single write by store to save
3465
all modifications, this class should not be used in the interim.
3468
def set(self, name, value):
3471
super(_CompatibleStack, self).set(name, value)
3472
# Force a write to persistent storage
3475
def remove(self, name):
3478
super(_CompatibleStack, self).remove(name)
3479
# Force a write to persistent storage
3483
class GlobalStack(_CompatibleStack):
3484
"""Global options only stack.
3486
The following sections are queried:
3488
* command-line overrides,
3490
* the 'DEFAULT' section in bazaar.conf
3492
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3497
gstore = GlobalStore()
3498
super(GlobalStack, self).__init__(
3499
[self._get_overrides,
3500
NameMatcher(gstore, 'DEFAULT').get_sections],
3501
gstore, mutable_section_id='DEFAULT')
3504
class LocationStack(_CompatibleStack):
3505
"""Per-location options falling back to global options stack.
3508
The following sections are queried:
3510
* command-line overrides,
3512
* the sections matching ``location`` in ``locations.conf``, the order being
3513
defined by the number of path components in the section glob, higher
3514
numbers first (from most specific section to most generic).
3516
* the 'DEFAULT' section in bazaar.conf
3518
This stack will use the ``location`` section in locations.conf as its
3522
def __init__(self, location):
3523
"""Make a new stack for a location and global configuration.
3525
:param location: A URL prefix to """
3526
lstore = LocationStore()
3527
if location.startswith('file://'):
3528
location = urlutils.local_path_from_url(location)
3529
gstore = GlobalStore()
3530
super(LocationStack, self).__init__(
3531
[self._get_overrides,
3532
LocationMatcher(lstore, location).get_sections,
3533
NameMatcher(gstore, 'DEFAULT').get_sections],
3534
lstore, mutable_section_id=location)
3537
class BranchStack(_CompatibleStack):
3538
"""Per-location options falling back to branch then global options stack.
3540
The following sections are queried:
3542
* command-line overrides,
3544
* the sections matching ``location`` in ``locations.conf``, the order being
3545
defined by the number of path components in the section glob, higher
3546
numbers first (from most specific section to most generic),
3548
* the no-name section in branch.conf,
3550
* the ``DEFAULT`` section in ``bazaar.conf``.
3552
This stack will use the no-name section in ``branch.conf`` as its
3556
def __init__(self, branch):
3557
lstore = LocationStore()
3558
bstore = branch._get_config_store()
3559
gstore = GlobalStore()
3560
super(BranchStack, self).__init__(
3561
[self._get_overrides,
3562
LocationMatcher(lstore, branch.base).get_sections,
3563
NameMatcher(bstore, None).get_sections,
3564
NameMatcher(gstore, 'DEFAULT').get_sections],
3566
self.branch = branch
3569
class RemoteControlStack(_CompatibleStack):
3570
"""Remote control-only options stack."""
3572
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3573
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3574
# control.conf and is used only for stack options.
3576
def __init__(self, bzrdir):
3577
cstore = bzrdir._get_config_store()
3578
super(RemoteControlStack, self).__init__(
3579
[NameMatcher(cstore, None).get_sections],
3581
self.bzrdir = bzrdir
3584
class RemoteBranchStack(_CompatibleStack):
3585
"""Remote branch-only options stack."""
3587
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3588
# with the stack used for remote branches. RemoteBranchStack only uses
3589
# branch.conf and is used only for the stack options.
3591
def __init__(self, branch):
3592
bstore = branch._get_config_store()
3593
super(RemoteBranchStack, self).__init__(
3594
[NameMatcher(bstore, None).get_sections],
3596
self.branch = branch
3598
# Use a an empty dict to initialize an empty configobj avoiding all
3599
# parsing and encoding checks
3600
_quoting_config = configobj.ConfigObj(
3601
{}, encoding='utf-8', interpolation=False)
3603
class cmd_config(commands.Command):
3604
__doc__ = """Display, set or remove a configuration option.
3606
Display the active value for a given option.
3608
If --all is specified, NAME is interpreted as a regular expression and all
3609
matching options are displayed mentioning their scope. The active value
3610
that bzr will take into account is the first one displayed for each option.
3612
If no NAME is given, --all .* is implied.
3614
Setting a value is achieved by using name=value without spaces. The value
3615
is set in the most relevant scope and can be checked by displaying the
3619
takes_args = ['name?']
3623
# FIXME: This should be a registry option so that plugins can register
3624
# their own config files (or not) and will also address
3625
# http://pad.lv/788991 -- vila 20101115
3626
commands.Option('scope', help='Reduce the scope to the specified'
3627
' configuration file.',
3629
commands.Option('all',
3630
help='Display all the defined values for the matching options.',
3632
commands.Option('remove', help='Remove the option from'
3633
' the configuration file.'),
3636
_see_also = ['configuration']
3638
@commands.display_command
3639
def run(self, name=None, all=False, directory=None, scope=None,
3641
if directory is None:
3643
directory = urlutils.normalize_url(directory)
3645
raise errors.BzrError(
3646
'--all and --remove are mutually exclusive.')
3648
# Delete the option in the given scope
3649
self._remove_config_option(name, directory, scope)
3651
# Defaults to all options
3652
self._show_matching_options('.*', directory, scope)
3655
name, value = name.split('=', 1)
3657
# Display the option(s) value(s)
3659
self._show_matching_options(name, directory, scope)
3661
self._show_value(name, directory, scope)
3664
raise errors.BzrError(
3665
'Only one option can be set.')
3666
# Set the option value
3667
self._set_config_option(name, value, directory, scope)
3669
def _get_stack(self, directory, scope=None):
3670
"""Get the configuration stack specified by ``directory`` and ``scope``.
3672
:param directory: Where the configurations are derived from.
3674
:param scope: A specific config to start from.
3676
# FIXME: scope should allow access to plugin-specific stacks (even
3677
# reduced to the plugin-specific store), related to
3678
# http://pad.lv/788991 -- vila 2011-11-15
3679
if scope is not None:
3680
if scope == 'bazaar':
3681
return GlobalStack()
3682
elif scope == 'locations':
3683
return LocationStack(directory)
3684
elif scope == 'branch':
3686
controldir.ControlDir.open_containing_tree_or_branch(
3688
return br.get_config_stack()
3689
raise errors.NoSuchConfig(scope)
3693
controldir.ControlDir.open_containing_tree_or_branch(
3695
return br.get_config_stack()
3696
except errors.NotBranchError:
3697
return LocationStack(directory)
3699
def _show_value(self, name, directory, scope):
3700
conf = self._get_stack(directory, scope)
3701
value = conf.get(name, expand=True)
3702
if value is not None:
3703
# Quote the value appropriately
3704
value = _quoting_config._quote(value)
3705
self.outf.write('%s\n' % (value,))
3707
raise errors.NoSuchConfigOption(name)
3709
def _show_matching_options(self, name, directory, scope):
3710
name = lazy_regex.lazy_compile(name)
3711
# We want any error in the regexp to be raised *now* so we need to
3712
# avoid the delay introduced by the lazy regexp. But, we still do
3713
# want the nicer errors raised by lazy_regex.
3714
name._compile_and_collapse()
3717
conf = self._get_stack(directory, scope)
3718
for sections in conf.sections_def:
3719
for store, section in sections():
3720
for oname in section.iter_option_names():
3721
if name.search(oname):
3722
if cur_store_id != store.id:
3723
# Explain where the options are defined
3724
self.outf.write('%s:\n' % (store.id,))
3725
cur_store_id = store.id
3727
if (section.id not in (None, 'DEFAULT')
3728
and cur_section != section.id):
3729
# Display the section if it's not the default (or
3731
self.outf.write(' [%s]\n' % (section.id,))
3732
cur_section = section.id
3733
value = section.get(oname, expand=False)
3734
value = _quoting_config._quote(value)
3735
self.outf.write(' %s = %s\n' % (oname, value))
3737
def _set_config_option(self, name, value, directory, scope):
3738
conf = self._get_stack(directory, scope)
3739
conf.set(name, value)
3741
def _remove_config_option(self, name, directory, scope):
3743
raise errors.BzrCommandError(
3744
'--remove expects an option to remove.')
3745
conf = self._get_stack(directory, scope)
3749
raise errors.NoSuchConfigOption(name)
3754
# We need adapters that can build a Store or a Stack in a test context. Test
3755
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3756
# themselves. The builder will receive a test instance and should return a
3757
# ready-to-use store or stack. Plugins that define new store/stacks can also
3758
# register themselves here to be tested against the tests defined in
3759
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3760
# for the same test.
3762
# The registered object should be a callable receiving a test instance
3763
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3765
test_store_builder_registry = registry.Registry()
3767
# The registered object should be a callable receiving a test instance
3768
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3770
test_stack_builder_registry = registry.Registry()