1508
2253
configobj[name] = value
1510
2255
configobj.setdefault(section, {})[name] = value
2256
for hook in OldConfigHooks['set']:
2257
hook(self, name, value)
2258
self._set_configobj(configobj)
2260
def remove_option(self, option_name, section_name=None):
2261
configobj = self._get_configobj()
2262
if section_name is None:
2263
del configobj[option_name]
2265
del configobj[section_name][option_name]
2266
for hook in OldConfigHooks['remove']:
2267
hook(self, option_name)
1511
2268
self._set_configobj(configobj)
1513
2270
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2272
f = StringIO(self._transport.get_bytes(self._filename))
2273
for hook in OldConfigHooks['load']:
1516
2276
except errors.NoSuchFile:
1517
2277
return StringIO()
2278
except errors.PermissionDenied, e:
2279
trace.warning("Permission denied while trying to open "
2280
"configuration file %s.", urlutils.unescape_for_display(
2281
urlutils.join(self._transport.base, self._filename), "utf-8"))
2284
def _external_url(self):
2285
return urlutils.join(self._transport.external_url(), self._filename)
1519
2287
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2288
f = self._get_config_file()
2291
conf = ConfigObj(f, encoding='utf-8')
2292
except configobj.ConfigObjError, e:
2293
raise errors.ParseConfigError(e.errors, self._external_url())
2294
except UnicodeDecodeError:
2295
raise errors.ConfigContentError(self._external_url())
1522
2300
def _set_configobj(self, configobj):
1523
2301
out_file = StringIO()
1524
2302
configobj.write(out_file)
1525
2303
out_file.seek(0)
1526
2304
self._transport.put_file(self._filename, out_file)
2305
for hook in OldConfigHooks['save']:
2309
class Option(object):
2310
"""An option definition.
2312
The option *values* are stored in config files and found in sections.
2314
Here we define various properties about the option itself, its default
2315
value, how to convert it from stores, what to do when invalid values are
2316
encoutered, in which config files it can be stored.
2319
def __init__(self, name, default=None, default_from_env=None,
2320
help=None, from_unicode=None, invalid=None):
2321
"""Build an option definition.
2323
:param name: the name used to refer to the option.
2325
:param default: the default value to use when none exist in the config
2326
stores. This is either a string that ``from_unicode`` will convert
2327
into the proper type, a callable returning a unicode string so that
2328
``from_unicode`` can be used on the return value, or a python
2329
object that can be stringified (so only the empty list is supported
2332
:param default_from_env: A list of environment variables which can
2333
provide a default value. 'default' will be used only if none of the
2334
variables specified here are set in the environment.
2336
:param help: a doc string to explain the option to the user.
2338
:param from_unicode: a callable to convert the unicode string
2339
representing the option value in a store. This is not called for
2342
:param invalid: the action to be taken when an invalid value is
2343
encountered in a store. This is called only when from_unicode is
2344
invoked to convert a string and returns None or raise ValueError or
2345
TypeError. Accepted values are: None (ignore invalid values),
2346
'warning' (emit a warning), 'error' (emit an error message and
2349
if default_from_env is None:
2350
default_from_env = []
2352
# Convert the default value to a unicode string so all values are
2353
# strings internally before conversion (via from_unicode) is attempted.
2356
elif isinstance(default, list):
2357
# Only the empty list is supported
2359
raise AssertionError(
2360
'Only empty lists are supported as default values')
2362
elif isinstance(default, (str, unicode, bool, int, float)):
2363
# Rely on python to convert strings, booleans and integers
2364
self.default = u'%s' % (default,)
2365
elif callable(default):
2366
self.default = default
2368
# other python objects are not expected
2369
raise AssertionError('%r is not supported as a default value'
2371
self.default_from_env = default_from_env
2373
self.from_unicode = from_unicode
2374
if invalid and invalid not in ('warning', 'error'):
2375
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2376
self.invalid = invalid
2378
def convert_from_unicode(self, unicode_value):
2379
if self.from_unicode is None or unicode_value is None:
2380
# Don't convert or nothing to convert
2381
return unicode_value
2383
converted = self.from_unicode(unicode_value)
2384
except (ValueError, TypeError):
2385
# Invalid values are ignored
2387
if converted is None and self.invalid is not None:
2388
# The conversion failed
2389
if self.invalid == 'warning':
2390
trace.warning('Value "%s" is not valid for "%s"',
2391
unicode_value, self.name)
2392
elif self.invalid == 'error':
2393
raise errors.ConfigOptionValueError(self.name, unicode_value)
2396
def get_default(self):
2398
for var in self.default_from_env:
2400
# If the env variable is defined, its value is the default one
2401
value = os.environ[var].decode(osutils.get_user_encoding())
2406
# Otherwise, fallback to the value defined at registration
2407
if callable(self.default):
2408
value = self.default()
2409
if not isinstance(value, unicode):
2410
raise AssertionError(
2411
'Callable default values should be unicode')
2413
value = self.default
2416
def get_help_text(self, additional_see_also=None, plain=True):
2418
from bzrlib import help_topics
2419
result += help_topics._format_see_also(additional_see_also)
2421
result = help_topics.help_as_plain_text(result)
2425
# Predefined converters to get proper values from store
2427
def bool_from_store(unicode_str):
2428
return ui.bool_from_string(unicode_str)
2431
def int_from_store(unicode_str):
2432
return int(unicode_str)
2435
def float_from_store(unicode_str):
2436
return float(unicode_str)
2440
# Use a an empty dict to initialize an empty configobj avoiding all
2441
# parsing and encoding checks
2442
_list_converter_config = configobj.ConfigObj(
2443
{}, encoding='utf-8', list_values=True, interpolation=False)
2446
def list_from_store(unicode_str):
2447
if not isinstance(unicode_str, basestring):
2449
# Now inject our string directly as unicode. All callers got their value
2450
# from configobj, so values that need to be quoted are already properly
2452
_list_converter_config.reset()
2453
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2454
maybe_list = _list_converter_config['list']
2455
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2456
if isinstance(maybe_list, basestring):
2458
# A single value, most probably the user forgot (or didn't care to
2459
# add) the final ','
2462
# The empty string, convert to empty list
2465
# We rely on ConfigObj providing us with a list already
2470
class OptionRegistry(registry.Registry):
2471
"""Register config options by their name.
2473
This overrides ``registry.Registry`` to simplify registration by acquiring
2474
some information from the option object itself.
2477
def register(self, option):
2478
"""Register a new option to its name.
2480
:param option: The option to register. Its name is used as the key.
2482
super(OptionRegistry, self).register(option.name, option,
2485
def register_lazy(self, key, module_name, member_name):
2486
"""Register a new option to be loaded on request.
2488
:param key: the key to request the option later. Since the registration
2489
is lazy, it should be provided and match the option name.
2491
:param module_name: the python path to the module. Such as 'os.path'.
2493
:param member_name: the member of the module to return. If empty or
2494
None, get() will return the module itself.
2496
super(OptionRegistry, self).register_lazy(key,
2497
module_name, member_name)
2499
def get_help(self, key=None):
2500
"""Get the help text associated with the given key"""
2501
option = self.get(key)
2502
the_help = option.help
2503
if callable(the_help):
2504
return the_help(self, key)
2508
option_registry = OptionRegistry()
2511
# Registered options in lexicographical order
2513
option_registry.register(
2514
Option('acceptable_keys',
2515
default=None, from_unicode=list_from_store,
2517
List of GPG key patterns which are acceptable for verification.
2519
option_registry.register(
2520
Option('bzr.workingtree.worth_saving_limit', default=10,
2521
from_unicode=int_from_store, invalid='warning',
2523
How many changes before saving the dirstate.
2525
-1 means that we will never rewrite the dirstate file for only
2526
stat-cache changes. Regardless of this setting, we will always rewrite
2527
the dirstate file if a file is added/removed/renamed/etc. This flag only
2528
affects the behavior of updating the dirstate file after we notice that
2529
a file has been touched.
2531
option_registry.register(
2532
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2533
from_unicode=signature_policy_from_unicode,
2535
GPG checking policy.
2537
Possible values: require, ignore, check-available (default)
2539
this option will control whether bzr will require good gpg
2540
signatures, ignore them, or check them if they are
2543
option_registry.register(
2544
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2545
from_unicode=signing_policy_from_unicode,
2549
Possible values: always, never, when-required (default)
2551
This option controls whether bzr will always create
2552
gpg signatures or not on commits.
2554
option_registry.register(
2555
Option('dirstate.fdatasync', default=True,
2556
from_unicode=bool_from_store,
2558
Flush dirstate changes onto physical disk?
2560
If true (default), working tree metadata changes are flushed through the
2561
OS buffers to physical disk. This is somewhat slower, but means data
2562
should not be lost if the machine crashes. See also repository.fdatasync.
2564
option_registry.register(
2565
Option('debug_flags', default=[], from_unicode=list_from_store,
2566
help='Debug flags to activate.'))
2567
option_registry.register(
2568
Option('default_format', default='2a',
2569
help='Format used when creating branches.'))
2570
option_registry.register(
2571
Option('dpush_strict', default=None,
2572
from_unicode=bool_from_store,
2574
The default value for ``dpush --strict``.
2576
If present, defines the ``--strict`` option default value for checking
2577
uncommitted changes before pushing into a different VCS without any
2578
custom bzr metadata.
2580
option_registry.register(
2582
help='The command called to launch an editor to enter a message.'))
2585
def default_email():
2586
v = os.environ.get('EMAIL')
2588
return v.decode(osutils.get_user_encoding())
2589
name, email = _auto_user_id()
2591
return u'%s <%s>' % (name, email)
2594
raise errors.NoWhoami()
2597
# FIXME: 'email' should also look at the BZR_EMAIL environment variable,
2598
# which takes precedence over the settings in the configuration file.
2599
option_registry.register(
2600
Option('email', default=default_email,
2601
help='The users identity'))
2602
option_registry.register(
2603
Option('gpg_signing_command',
2606
Program to use use for creating signatures.
2608
This should support at least the -u and --clearsign options.
2610
option_registry.register(
2611
Option('gpg_signing_key',
2614
GPG key to use for signing.
2616
This defaults to the first key associated with the users email.
2618
option_registry.register(
2619
Option('ignore_missing_extensions', default=False,
2620
from_unicode=bool_from_store,
2622
Control the missing extensions warning display.
2624
The warning will not be emitted if set to True.
2626
option_registry.register(
2628
help='Language to translate messages into.'))
2629
option_registry.register(
2630
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2632
Steal locks that appears to be dead.
2634
If set to True, bzr will check if a lock is supposed to be held by an
2635
active process from the same user on the same machine. If the user and
2636
machine match, but no process with the given PID is active, then bzr
2637
will automatically break the stale lock, and create a new lock for
2639
Otherwise, bzr will prompt as normal to break the lock.
2641
option_registry.register(
2642
Option('log_format', default='long',
2644
Log format to use when displaying revisions.
2646
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2647
may be provided by plugins.
2649
option_registry.register(
2650
Option('output_encoding',
2651
help= 'Unicode encoding for output'
2652
' (terminal encoding if not specified).'))
2653
option_registry.register(
2654
Option('post_commit', default=None,
2656
Post commit functions.
2658
An ordered list of python functions to call, separated by spaces.
2660
Each function takes branch, rev_id as parameters.
2662
option_registry.register(
2663
Option('push_strict', default=None,
2664
from_unicode=bool_from_store,
2666
The default value for ``push --strict``.
2668
If present, defines the ``--strict`` option default value for checking
2669
uncommitted changes before sending a merge directive.
2671
option_registry.register(
2672
Option('repository.fdatasync', default=True,
2673
from_unicode=bool_from_store,
2675
Flush repository changes onto physical disk?
2677
If true (default), repository changes are flushed through the OS buffers
2678
to physical disk. This is somewhat slower, but means data should not be
2679
lost if the machine crashes. See also dirstate.fdatasync.
2682
option_registry.register(
2683
Option('selftest.timeout',
2685
from_unicode=int_from_store,
2686
help='Abort selftest if one test takes longer than this many seconds',
2689
option_registry.register(
2690
Option('send_strict', default=None,
2691
from_unicode=bool_from_store,
2693
The default value for ``send --strict``.
2695
If present, defines the ``--strict`` option default value for checking
2696
uncommitted changes before pushing.
2699
option_registry.register(
2700
Option('serve.client_timeout',
2701
default=300.0, from_unicode=float_from_store,
2702
help="If we wait for a new request from a client for more than"
2703
" X seconds, consider the client idle, and hangup."))
2706
class Section(object):
2707
"""A section defines a dict of option name => value.
2709
This is merely a read-only dict which can add some knowledge about the
2710
options. It is *not* a python dict object though and doesn't try to mimic
2714
def __init__(self, section_id, options):
2715
self.id = section_id
2716
# We re-use the dict-like object received
2717
self.options = options
2719
def get(self, name, default=None, expand=True):
2720
return self.options.get(name, default)
2722
def iter_option_names(self):
2723
for k in self.options.iterkeys():
2727
# Mostly for debugging use
2728
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2731
_NewlyCreatedOption = object()
2732
"""Was the option created during the MutableSection lifetime"""
2735
class MutableSection(Section):
2736
"""A section allowing changes and keeping track of the original values."""
2738
def __init__(self, section_id, options):
2739
super(MutableSection, self).__init__(section_id, options)
2742
def set(self, name, value):
2743
if name not in self.options:
2744
# This is a new option
2745
self.orig[name] = _NewlyCreatedOption
2746
elif name not in self.orig:
2747
self.orig[name] = self.get(name, None)
2748
self.options[name] = value
2750
def remove(self, name):
2751
if name not in self.orig:
2752
self.orig[name] = self.get(name, None)
2753
del self.options[name]
2756
class Store(object):
2757
"""Abstract interface to persistent storage for configuration options."""
2759
readonly_section_class = Section
2760
mutable_section_class = MutableSection
2762
def is_loaded(self):
2763
"""Returns True if the Store has been loaded.
2765
This is used to implement lazy loading and ensure the persistent
2766
storage is queried only when needed.
2768
raise NotImplementedError(self.is_loaded)
2771
"""Loads the Store from persistent storage."""
2772
raise NotImplementedError(self.load)
2774
def _load_from_string(self, bytes):
2775
"""Create a store from a string in configobj syntax.
2777
:param bytes: A string representing the file content.
2779
raise NotImplementedError(self._load_from_string)
2782
"""Unloads the Store.
2784
This should make is_loaded() return False. This is used when the caller
2785
knows that the persistent storage has changed or may have change since
2788
raise NotImplementedError(self.unload)
2791
"""Saves the Store to persistent storage."""
2792
raise NotImplementedError(self.save)
2794
def external_url(self):
2795
raise NotImplementedError(self.external_url)
2797
def get_sections(self):
2798
"""Returns an ordered iterable of existing sections.
2800
:returns: An iterable of (store, section).
2802
raise NotImplementedError(self.get_sections)
2804
def get_mutable_section(self, section_id=None):
2805
"""Returns the specified mutable section.
2807
:param section_id: The section identifier
2809
raise NotImplementedError(self.get_mutable_section)
2812
# Mostly for debugging use
2813
return "<config.%s(%s)>" % (self.__class__.__name__,
2814
self.external_url())
2817
class CommandLineStore(Store):
2818
"A store to carry command line overrides for the config options."""
2820
def __init__(self, opts=None):
2821
super(CommandLineStore, self).__init__()
2827
# The dict should be cleared but not replaced so it can be shared.
2828
self.options.clear()
2830
def _from_cmdline(self, overrides):
2831
# Reset before accepting new definitions
2833
for over in overrides:
2835
name, value = over.split('=', 1)
2837
raise errors.BzrCommandError(
2838
gettext("Invalid '%s', should be of the form 'name=value'")
2840
self.options[name] = value
2842
def external_url(self):
2843
# Not an url but it makes debugging easier and is never needed
2847
def get_sections(self):
2848
yield self, self.readonly_section_class('cmdline_overrides',
2852
class IniFileStore(Store):
2853
"""A config Store using ConfigObj for storage.
2855
:ivar transport: The transport object where the config file is located.
2857
:ivar file_name: The config file basename in the transport directory.
2859
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2860
serialize/deserialize the config file.
2864
"""A config Store using ConfigObj for storage.
2866
super(IniFileStore, self).__init__()
2867
self._config_obj = None
2869
def is_loaded(self):
2870
return self._config_obj != None
2873
self._config_obj = None
2875
def _load_content(self):
2876
"""Load the config file bytes.
2878
This should be provided by subclasses
2880
:return: Byte string
2882
raise NotImplementedError(self._load_content)
2884
def _save_content(self, content):
2885
"""Save the config file bytes.
2887
This should be provided by subclasses
2889
:param content: Config file bytes to write
2891
raise NotImplementedError(self._save_content)
2894
"""Load the store from the associated file."""
2895
if self.is_loaded():
2897
content = self._load_content()
2898
self._load_from_string(content)
2899
for hook in ConfigHooks['load']:
2902
def _load_from_string(self, bytes):
2903
"""Create a config store from a string.
2905
:param bytes: A string representing the file content.
2907
if self.is_loaded():
2908
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2909
co_input = StringIO(bytes)
2911
# The config files are always stored utf8-encoded
2912
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2914
except configobj.ConfigObjError, e:
2915
self._config_obj = None
2916
raise errors.ParseConfigError(e.errors, self.external_url())
2917
except UnicodeDecodeError:
2918
raise errors.ConfigContentError(self.external_url())
2921
if not self.is_loaded():
2925
self._config_obj.write(out)
2926
self._save_content(out.getvalue())
2927
for hook in ConfigHooks['save']:
2930
def get_sections(self):
2931
"""Get the configobj section in the file order.
2933
:returns: An iterable of (store, section).
2935
# We need a loaded store
2938
except (errors.NoSuchFile, errors.PermissionDenied):
2939
# If the file can't be read, there is no sections
2941
cobj = self._config_obj
2943
yield self, self.readonly_section_class(None, cobj)
2944
for section_name in cobj.sections:
2946
self.readonly_section_class(section_name,
2947
cobj[section_name]))
2949
def get_mutable_section(self, section_id=None):
2950
# We need a loaded store
2953
except errors.NoSuchFile:
2954
# The file doesn't exist, let's pretend it was empty
2955
self._load_from_string('')
2956
if section_id is None:
2957
section = self._config_obj
2959
section = self._config_obj.setdefault(section_id, {})
2960
return self.mutable_section_class(section_id, section)
2963
class TransportIniFileStore(IniFileStore):
2964
"""IniFileStore that loads files from a transport.
2967
def __init__(self, transport, file_name):
2968
"""A Store using a ini file on a Transport
2970
:param transport: The transport object where the config file is located.
2971
:param file_name: The config file basename in the transport directory.
2973
super(TransportIniFileStore, self).__init__()
2974
self.transport = transport
2975
self.file_name = file_name
2977
def _load_content(self):
2979
return self.transport.get_bytes(self.file_name)
2980
except errors.PermissionDenied:
2981
trace.warning("Permission denied while trying to load "
2982
"configuration store %s.", self.external_url())
2985
def _save_content(self, content):
2986
self.transport.put_bytes(self.file_name, content)
2988
def external_url(self):
2989
# FIXME: external_url should really accepts an optional relpath
2990
# parameter (bug #750169) :-/ -- vila 2011-04-04
2991
# The following will do in the interim but maybe we don't want to
2992
# expose a path here but rather a config ID and its associated
2993
# object </hand wawe>.
2994
return urlutils.join(self.transport.external_url(), self.file_name)
2997
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
2998
# unlockable stores for use with objects that can already ensure the locking
2999
# (think branches). If different stores (not based on ConfigObj) are created,
3000
# they may face the same issue.
3003
class LockableIniFileStore(TransportIniFileStore):
3004
"""A ConfigObjStore using locks on save to ensure store integrity."""
3006
def __init__(self, transport, file_name, lock_dir_name=None):
3007
"""A config Store using ConfigObj for storage.
3009
:param transport: The transport object where the config file is located.
3011
:param file_name: The config file basename in the transport directory.
3013
if lock_dir_name is None:
3014
lock_dir_name = 'lock'
3015
self.lock_dir_name = lock_dir_name
3016
super(LockableIniFileStore, self).__init__(transport, file_name)
3017
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3019
def lock_write(self, token=None):
3020
"""Takes a write lock in the directory containing the config file.
3022
If the directory doesn't exist it is created.
3024
# FIXME: This doesn't check the ownership of the created directories as
3025
# ensure_config_dir_exists does. It should if the transport is local
3026
# -- vila 2011-04-06
3027
self.transport.create_prefix()
3028
return self._lock.lock_write(token)
3033
def break_lock(self):
3034
self._lock.break_lock()
3038
# We need to be able to override the undecorated implementation
3039
self.save_without_locking()
3041
def save_without_locking(self):
3042
super(LockableIniFileStore, self).save()
3045
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3046
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3047
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3049
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3050
# functions or a registry will make it easier and clearer for tests, focusing
3051
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3052
# on a poolie's remark)
3053
class GlobalStore(LockableIniFileStore):
3055
def __init__(self, possible_transports=None):
3056
t = transport.get_transport_from_path(
3057
config_dir(), possible_transports=possible_transports)
3058
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3062
class LocationStore(LockableIniFileStore):
3064
def __init__(self, possible_transports=None):
3065
t = transport.get_transport_from_path(
3066
config_dir(), possible_transports=possible_transports)
3067
super(LocationStore, self).__init__(t, 'locations.conf')
3068
self.id = 'locations'
3071
class BranchStore(TransportIniFileStore):
3073
def __init__(self, branch):
3074
super(BranchStore, self).__init__(branch.control_transport,
3076
self.branch = branch
3079
def lock_write(self, token=None):
3080
return self.branch.lock_write(token)
3083
return self.branch.unlock()
3087
# We need to be able to override the undecorated implementation
3088
self.save_without_locking()
3090
def save_without_locking(self):
3091
super(BranchStore, self).save()
3094
class ControlStore(LockableIniFileStore):
3096
def __init__(self, bzrdir):
3097
super(ControlStore, self).__init__(bzrdir.transport,
3099
lock_dir_name='branch_lock')
3102
class SectionMatcher(object):
3103
"""Select sections into a given Store.
3105
This is intended to be used to postpone getting an iterable of sections
3109
def __init__(self, store):
3112
def get_sections(self):
3113
# This is where we require loading the store so we can see all defined
3115
sections = self.store.get_sections()
3116
# Walk the revisions in the order provided
3117
for store, s in sections:
3121
def match(self, section):
3122
"""Does the proposed section match.
3124
:param section: A Section object.
3126
:returns: True if the section matches, False otherwise.
3128
raise NotImplementedError(self.match)
3131
class NameMatcher(SectionMatcher):
3133
def __init__(self, store, section_id):
3134
super(NameMatcher, self).__init__(store)
3135
self.section_id = section_id
3137
def match(self, section):
3138
return section.id == self.section_id
3141
class LocationSection(Section):
3143
def __init__(self, section, length, extra_path):
3144
super(LocationSection, self).__init__(section.id, section.options)
3145
self.length = length
3146
self.extra_path = extra_path
3147
self.locals = {'relpath': extra_path,
3148
'basename': urlutils.basename(extra_path)}
3150
def get(self, name, default=None, expand=True):
3151
value = super(LocationSection, self).get(name, default)
3152
if value is not None and expand:
3153
policy_name = self.get(name + ':policy', None)
3154
policy = _policy_value.get(policy_name, POLICY_NONE)
3155
if policy == POLICY_APPENDPATH:
3156
value = urlutils.join(value, self.extra_path)
3157
# expand section local options right now (since POLICY_APPENDPATH
3158
# will never add options references, it's ok to expand after it).
3160
for is_ref, chunk in iter_option_refs(value):
3162
chunks.append(chunk)
3165
if ref in self.locals:
3166
chunks.append(self.locals[ref])
3168
chunks.append(chunk)
3169
value = ''.join(chunks)
3173
class LocationMatcher(SectionMatcher):
3175
def __init__(self, store, location):
3176
super(LocationMatcher, self).__init__(store)
3177
if location.startswith('file://'):
3178
location = urlutils.local_path_from_url(location)
3179
self.location = location
3181
def _get_matching_sections(self):
3182
"""Get all sections matching ``location``."""
3183
# We slightly diverge from LocalConfig here by allowing the no-name
3184
# section as the most generic one and the lower priority.
3185
no_name_section = None
3187
# Filter out the no_name_section so _iter_for_location_by_parts can be
3188
# used (it assumes all sections have a name).
3189
for _, section in self.store.get_sections():
3190
if section.id is None:
3191
no_name_section = section
3193
all_sections.append(section)
3194
# Unfortunately _iter_for_location_by_parts deals with section names so
3195
# we have to resync.
3196
filtered_sections = _iter_for_location_by_parts(
3197
[s.id for s in all_sections], self.location)
3198
iter_all_sections = iter(all_sections)
3199
matching_sections = []
3200
if no_name_section is not None:
3201
matching_sections.append(
3202
LocationSection(no_name_section, 0, self.location))
3203
for section_id, extra_path, length in filtered_sections:
3204
# a section id is unique for a given store so it's safe to take the
3205
# first matching section while iterating. Also, all filtered
3206
# sections are part of 'all_sections' and will always be found
3209
section = iter_all_sections.next()
3210
if section_id == section.id:
3211
matching_sections.append(
3212
LocationSection(section, length, extra_path))
3214
return matching_sections
3216
def get_sections(self):
3217
# Override the default implementation as we want to change the order
3218
matching_sections = self._get_matching_sections()
3219
# We want the longest (aka more specific) locations first
3220
sections = sorted(matching_sections,
3221
key=lambda section: (section.length, section.id),
3223
# Sections mentioning 'ignore_parents' restrict the selection
3224
for section in sections:
3225
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3226
ignore = section.get('ignore_parents', None)
3227
if ignore is not None:
3228
ignore = ui.bool_from_string(ignore)
3231
# Finally, we have a valid section
3232
yield self.store, section
3235
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3236
"""Describes an expandable option reference.
3238
We want to match the most embedded reference first.
3240
I.e. for '{{foo}}' we will get '{foo}',
3241
for '{bar{baz}}' we will get '{baz}'
3244
def iter_option_refs(string):
3245
# Split isolate refs so every other chunk is a ref
3247
for chunk in _option_ref_re.split(string):
3252
class Stack(object):
3253
"""A stack of configurations where an option can be defined"""
3255
def __init__(self, sections_def, store=None, mutable_section_id=None):
3256
"""Creates a stack of sections with an optional store for changes.
3258
:param sections_def: A list of Section or callables that returns an
3259
iterable of Section. This defines the Sections for the Stack and
3260
can be called repeatedly if needed.
3262
:param store: The optional Store where modifications will be
3263
recorded. If none is specified, no modifications can be done.
3265
:param mutable_section_id: The id of the MutableSection where changes
3266
are recorded. This requires the ``store`` parameter to be
3269
self.sections_def = sections_def
3271
self.mutable_section_id = mutable_section_id
3273
def get(self, name, expand=None):
3274
"""Return the *first* option value found in the sections.
3276
This is where we guarantee that sections coming from Store are loaded
3277
lazily: the loading is delayed until we need to either check that an
3278
option exists or get its value, which in turn may require to discover
3279
in which sections it can be defined. Both of these (section and option
3280
existence) require loading the store (even partially).
3282
:param name: The queried option.
3284
:param expand: Whether options references should be expanded.
3286
:returns: The value of the option.
3288
# FIXME: No caching of options nor sections yet -- vila 20110503
3290
expand = _get_expand_default_value()
3292
# Ensuring lazy loading is achieved by delaying section matching (which
3293
# implies querying the persistent storage) until it can't be avoided
3294
# anymore by using callables to describe (possibly empty) section
3296
for sections in self.sections_def:
3297
for store, section in sections():
3298
value = section.get(name)
3299
if value is not None:
3301
if value is not None:
3303
# If the option is registered, it may provide additional info about
3306
opt = option_registry.get(name)
3310
def expand_and_convert(val):
3311
# This may need to be called twice if the value is None or ends up
3312
# being None during expansion or conversion.
3315
if isinstance(val, basestring):
3316
val = self._expand_options_in_string(val)
3318
trace.warning('Cannot expand "%s":'
3319
' %s does not support option expansion'
3320
% (name, type(val)))
3322
val = opt.convert_from_unicode(val)
3324
value = expand_and_convert(value)
3325
if opt is not None and value is None:
3326
# If the option is registered, it may provide a default value
3327
value = opt.get_default()
3328
value = expand_and_convert(value)
3329
for hook in ConfigHooks['get']:
3330
hook(self, name, value)
3333
def expand_options(self, string, env=None):
3334
"""Expand option references in the string in the configuration context.
3336
:param string: The string containing option(s) to expand.
3338
:param env: An option dict defining additional configuration options or
3339
overriding existing ones.
3341
:returns: The expanded string.
3343
return self._expand_options_in_string(string, env)
3345
def _expand_options_in_string(self, string, env=None, _refs=None):
3346
"""Expand options in the string in the configuration context.
3348
:param string: The string to be expanded.
3350
:param env: An option dict defining additional configuration options or
3351
overriding existing ones.
3353
:param _refs: Private list (FIFO) containing the options being expanded
3356
:returns: The expanded string.
3359
# Not much to expand there
3362
# What references are currently resolved (to detect loops)
3365
# We need to iterate until no more refs appear ({{foo}} will need two
3366
# iterations for example).
3371
for is_ref, chunk in iter_option_refs(result):
3373
chunks.append(chunk)
3378
raise errors.OptionExpansionLoop(string, _refs)
3380
value = self._expand_option(name, env, _refs)
3382
raise errors.ExpandingUnknownOption(name, string)
3383
chunks.append(value)
3385
result = ''.join(chunks)
3388
def _expand_option(self, name, env, _refs):
3389
if env is not None and name in env:
3390
# Special case, values provided in env takes precedence over
3394
value = self.get(name, expand=False)
3395
value = self._expand_options_in_string(value, env, _refs)
3398
def _get_mutable_section(self):
3399
"""Get the MutableSection for the Stack.
3401
This is where we guarantee that the mutable section is lazily loaded:
3402
this means we won't load the corresponding store before setting a value
3403
or deleting an option. In practice the store will often be loaded but
3404
this helps catching some programming errors.
3406
section = self.store.get_mutable_section(self.mutable_section_id)
3409
def set(self, name, value):
3410
"""Set a new value for the option."""
3411
section = self._get_mutable_section()
3412
section.set(name, value)
3413
for hook in ConfigHooks['set']:
3414
hook(self, name, value)
3416
def remove(self, name):
3417
"""Remove an existing option."""
3418
section = self._get_mutable_section()
3419
section.remove(name)
3420
for hook in ConfigHooks['remove']:
3424
# Mostly for debugging use
3425
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3427
def _get_overrides(self):
3428
# Hack around library_state.initialize never called
3429
if bzrlib.global_state is not None:
3430
return bzrlib.global_state.cmdline_overrides.get_sections()
3434
class _CompatibleStack(Stack):
3435
"""Place holder for compatibility with previous design.
3437
This is intended to ease the transition from the Config-based design to the
3438
Stack-based design and should not be used nor relied upon by plugins.
3440
One assumption made here is that the daughter classes will all use Stores
3441
derived from LockableIniFileStore).
3443
It implements set() and remove () by re-loading the store before applying
3444
the modification and saving it.
3446
The long term plan being to implement a single write by store to save
3447
all modifications, this class should not be used in the interim.
3450
def set(self, name, value):
3453
super(_CompatibleStack, self).set(name, value)
3454
# Force a write to persistent storage
3457
def remove(self, name):
3460
super(_CompatibleStack, self).remove(name)
3461
# Force a write to persistent storage
3465
class GlobalStack(_CompatibleStack):
3466
"""Global options only stack."""
3470
gstore = GlobalStore()
3471
super(GlobalStack, self).__init__(
3472
[self._get_overrides, NameMatcher(gstore, 'DEFAULT').get_sections],
3473
gstore, mutable_section_id='DEFAULT')
3476
class LocationStack(_CompatibleStack):
3477
"""Per-location options falling back to global options stack."""
3479
def __init__(self, location):
3480
"""Make a new stack for a location and global configuration.
3482
:param location: A URL prefix to """
3483
lstore = LocationStore()
3484
if location.startswith('file://'):
3485
location = urlutils.local_path_from_url(location)
3486
matcher = LocationMatcher(lstore, location)
3487
gstore = GlobalStore()
3488
super(LocationStack, self).__init__(
3489
[self._get_overrides,
3490
matcher.get_sections, NameMatcher(gstore, 'DEFAULT').get_sections],
3491
lstore, mutable_section_id=location)
3494
class BranchStack(_CompatibleStack):
3495
"""Per-location options falling back to branch then global options stack."""
3497
def __init__(self, branch):
3498
bstore = branch._get_config_store()
3499
lstore = LocationStore()
3500
matcher = LocationMatcher(lstore, branch.base)
3501
gstore = GlobalStore()
3502
super(BranchStack, self).__init__(
3503
[self._get_overrides,
3504
matcher.get_sections, bstore.get_sections,
3505
NameMatcher(gstore, 'DEFAULT').get_sections],
3507
self.branch = branch
3510
class RemoteControlStack(_CompatibleStack):
3511
"""Remote control-only options stack."""
3513
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3514
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3515
# control.conf and is used only for stack options.
3517
def __init__(self, bzrdir):
3518
cstore = bzrdir._get_config_store()
3519
super(RemoteControlStack, self).__init__(
3520
[cstore.get_sections],
3522
self.bzrdir = bzrdir
3525
class RemoteBranchStack(_CompatibleStack):
3526
"""Remote branch-only options stack."""
3528
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3529
# with the stack used for remote branches. RemoteBranchStack only uses
3530
# branch.conf and is used only for the stack options.
3532
def __init__(self, branch):
3533
bstore = branch._get_config_store()
3534
super(RemoteBranchStack, self).__init__(
3535
[bstore.get_sections],
3537
self.branch = branch
3539
# Use a an empty dict to initialize an empty configobj avoiding all
3540
# parsing and encoding checks
3541
_quoting_config = configobj.ConfigObj(
3542
{}, encoding='utf-8', interpolation=False)
3544
class cmd_config(commands.Command):
3545
__doc__ = """Display, set or remove a configuration option.
3547
Display the active value for a given option.
3549
If --all is specified, NAME is interpreted as a regular expression and all
3550
matching options are displayed mentioning their scope. The active value
3551
that bzr will take into account is the first one displayed for each option.
3553
If no NAME is given, --all .* is implied.
3555
Setting a value is achieved by using name=value without spaces. The value
3556
is set in the most relevant scope and can be checked by displaying the
3560
takes_args = ['name?']
3564
# FIXME: This should be a registry option so that plugins can register
3565
# their own config files (or not) and will also address
3566
# http://pad.lv/788991 -- vila 20101115
3567
commands.Option('scope', help='Reduce the scope to the specified'
3568
' configuration file.',
3570
commands.Option('all',
3571
help='Display all the defined values for the matching options.',
3573
commands.Option('remove', help='Remove the option from'
3574
' the configuration file.'),
3577
_see_also = ['configuration']
3579
@commands.display_command
3580
def run(self, name=None, all=False, directory=None, scope=None,
3582
if directory is None:
3584
directory = urlutils.normalize_url(directory)
3586
raise errors.BzrError(
3587
'--all and --remove are mutually exclusive.')
3589
# Delete the option in the given scope
3590
self._remove_config_option(name, directory, scope)
3592
# Defaults to all options
3593
self._show_matching_options('.*', directory, scope)
3596
name, value = name.split('=', 1)
3598
# Display the option(s) value(s)
3600
self._show_matching_options(name, directory, scope)
3602
self._show_value(name, directory, scope)
3605
raise errors.BzrError(
3606
'Only one option can be set.')
3607
# Set the option value
3608
self._set_config_option(name, value, directory, scope)
3610
def _get_stack(self, directory, scope=None):
3611
"""Get the configuration stack specified by ``directory`` and ``scope``.
3613
:param directory: Where the configurations are derived from.
3615
:param scope: A specific config to start from.
3617
# FIXME: scope should allow access to plugin-specific stacks (even
3618
# reduced to the plugin-specific store), related to
3619
# http://pad.lv/788991 -- vila 2011-11-15
3620
if scope is not None:
3621
if scope == 'bazaar':
3622
return GlobalStack()
3623
elif scope == 'locations':
3624
return LocationStack(directory)
3625
elif scope == 'branch':
3627
controldir.ControlDir.open_containing_tree_or_branch(
3629
return br.get_config_stack()
3630
raise errors.NoSuchConfig(scope)
3634
controldir.ControlDir.open_containing_tree_or_branch(
3636
return br.get_config_stack()
3637
except errors.NotBranchError:
3638
return LocationStack(directory)
3640
def _show_value(self, name, directory, scope):
3641
conf = self._get_stack(directory, scope)
3642
value = conf.get(name, expand=True)
3643
if value is not None:
3644
# Quote the value appropriately
3645
value = _quoting_config._quote(value)
3646
self.outf.write('%s\n' % (value,))
3648
raise errors.NoSuchConfigOption(name)
3650
def _show_matching_options(self, name, directory, scope):
3651
name = lazy_regex.lazy_compile(name)
3652
# We want any error in the regexp to be raised *now* so we need to
3653
# avoid the delay introduced by the lazy regexp. But, we still do
3654
# want the nicer errors raised by lazy_regex.
3655
name._compile_and_collapse()
3658
conf = self._get_stack(directory, scope)
3659
for sections in conf.sections_def:
3660
for store, section in sections():
3661
for oname in section.iter_option_names():
3662
if name.search(oname):
3663
if cur_store_id != store.id:
3664
# Explain where the options are defined
3665
self.outf.write('%s:\n' % (store.id,))
3666
cur_store_id = store.id
3668
if (section.id not in (None, 'DEFAULT')
3669
and cur_section != section.id):
3670
# Display the section if it's not the default (or
3672
self.outf.write(' [%s]\n' % (section.id,))
3673
cur_section = section.id
3674
value = section.get(oname, expand=False)
3675
value = _quoting_config._quote(value)
3676
self.outf.write(' %s = %s\n' % (oname, value))
3678
def _set_config_option(self, name, value, directory, scope):
3679
conf = self._get_stack(directory, scope)
3680
conf.set(name, value)
3682
def _remove_config_option(self, name, directory, scope):
3684
raise errors.BzrCommandError(
3685
'--remove expects an option to remove.')
3686
conf = self._get_stack(directory, scope)
3690
raise errors.NoSuchConfigOption(name)
3695
# We need adapters that can build a Store or a Stack in a test context. Test
3696
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3697
# themselves. The builder will receive a test instance and should return a
3698
# ready-to-use store or stack. Plugins that define new store/stacks can also
3699
# register themselves here to be tested against the tests defined in
3700
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3701
# for the same test.
3703
# The registered object should be a callable receiving a test instance
3704
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3706
test_store_builder_registry = registry.Registry()
3708
# The registered object should be a callable receiving a test instance
3709
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3711
test_stack_builder_registry = registry.Registry()