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)
2465
# Use a an empty dict to initialize an empty configobj avoiding all
2466
# parsing and encoding checks
2467
_list_converter_config = configobj.ConfigObj(
2468
{}, encoding='utf-8', list_values=True, interpolation=False)
2471
def list_from_store(unicode_str):
2472
if not isinstance(unicode_str, basestring):
2474
# Now inject our string directly as unicode. All callers got their value
2475
# from configobj, so values that need to be quoted are already properly
2477
_list_converter_config.reset()
2478
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2479
maybe_list = _list_converter_config['list']
2480
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2481
if isinstance(maybe_list, basestring):
2483
# A single value, most probably the user forgot (or didn't care to
2484
# add) the final ','
2487
# The empty string, convert to empty list
2490
# We rely on ConfigObj providing us with a list already
2495
class OptionRegistry(registry.Registry):
2496
"""Register config options by their name.
2498
This overrides ``registry.Registry`` to simplify registration by acquiring
2499
some information from the option object itself.
2502
def register(self, option):
2503
"""Register a new option to its name.
2505
:param option: The option to register. Its name is used as the key.
2507
super(OptionRegistry, self).register(option.name, option,
2510
def register_lazy(self, key, module_name, member_name):
2511
"""Register a new option to be loaded on request.
2513
:param key: the key to request the option later. Since the registration
2514
is lazy, it should be provided and match the option name.
2516
:param module_name: the python path to the module. Such as 'os.path'.
2518
:param member_name: the member of the module to return. If empty or
2519
None, get() will return the module itself.
2521
super(OptionRegistry, self).register_lazy(key,
2522
module_name, member_name)
2524
def get_help(self, key=None):
2525
"""Get the help text associated with the given key"""
2526
option = self.get(key)
2527
the_help = option.help
2528
if callable(the_help):
2529
return the_help(self, key)
2533
option_registry = OptionRegistry()
2536
# Registered options in lexicographical order
2538
option_registry.register(
2539
Option('acceptable_keys',
2540
default=None, from_unicode=list_from_store,
2542
List of GPG key patterns which are acceptable for verification.
2544
option_registry.register(
2545
Option('bzr.workingtree.worth_saving_limit', default=10,
2546
from_unicode=int_from_store, invalid='warning',
2548
How many changes before saving the dirstate.
2550
-1 means that we will never rewrite the dirstate file for only
2551
stat-cache changes. Regardless of this setting, we will always rewrite
2552
the dirstate file if a file is added/removed/renamed/etc. This flag only
2553
affects the behavior of updating the dirstate file after we notice that
2554
a file has been touched.
2556
option_registry.register(
2557
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2558
from_unicode=signature_policy_from_unicode,
2560
GPG checking policy.
2562
Possible values: require, ignore, check-available (default)
2564
this option will control whether bzr will require good gpg
2565
signatures, ignore them, or check them if they are
2568
option_registry.register(
2569
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2570
from_unicode=signing_policy_from_unicode,
2574
Possible values: always, never, when-required (default)
2576
This option controls whether bzr will always create
2577
gpg signatures or not on commits.
2579
option_registry.register(
2580
Option('dirstate.fdatasync', default=True,
2581
from_unicode=bool_from_store,
2583
Flush dirstate changes onto physical disk?
2585
If true (default), working tree metadata changes are flushed through the
2586
OS buffers to physical disk. This is somewhat slower, but means data
2587
should not be lost if the machine crashes. See also repository.fdatasync.
2589
option_registry.register(
2590
Option('debug_flags', default=[], from_unicode=list_from_store,
2591
help='Debug flags to activate.'))
2592
option_registry.register(
2593
Option('default_format', default='2a',
2594
help='Format used when creating branches.'))
2595
option_registry.register(
2596
Option('dpush_strict', default=None,
2597
from_unicode=bool_from_store,
2599
The default value for ``dpush --strict``.
2601
If present, defines the ``--strict`` option default value for checking
2602
uncommitted changes before pushing into a different VCS without any
2603
custom bzr metadata.
2605
option_registry.register(
2607
help='The command called to launch an editor to enter a message.'))
2608
option_registry.register(
2609
Option('email', default=default_email,
2610
from_unicode=email_from_store,
2611
help='The users identity'))
2612
option_registry.register(
2613
Option('gpg_signing_command',
2616
Program to use use for creating signatures.
2618
This should support at least the -u and --clearsign options.
2620
option_registry.register(
2621
Option('gpg_signing_key',
2624
GPG key to use for signing.
2626
This defaults to the first key associated with the users email.
2628
option_registry.register(
2629
Option('ignore_missing_extensions', default=False,
2630
from_unicode=bool_from_store,
2632
Control the missing extensions warning display.
2634
The warning will not be emitted if set to True.
2636
option_registry.register(
2638
help='Language to translate messages into.'))
2639
option_registry.register(
2640
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2642
Steal locks that appears to be dead.
2644
If set to True, bzr will check if a lock is supposed to be held by an
2645
active process from the same user on the same machine. If the user and
2646
machine match, but no process with the given PID is active, then bzr
2647
will automatically break the stale lock, and create a new lock for
2649
Otherwise, bzr will prompt as normal to break the lock.
2651
option_registry.register(
2652
Option('log_format', default='long',
2654
Log format to use when displaying revisions.
2656
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2657
may be provided by plugins.
2659
option_registry.register(
2660
Option('output_encoding',
2661
help= 'Unicode encoding for output'
2662
' (terminal encoding if not specified).'))
2663
option_registry.register(
2664
Option('post_commit', default=None,
2666
Post commit functions.
2668
An ordered list of python functions to call, separated by spaces.
2670
Each function takes branch, rev_id as parameters.
2672
option_registry.register(
2673
Option('push_strict', default=None,
2674
from_unicode=bool_from_store,
2676
The default value for ``push --strict``.
2678
If present, defines the ``--strict`` option default value for checking
2679
uncommitted changes before sending a merge directive.
2681
option_registry.register(
2682
Option('repository.fdatasync', default=True,
2683
from_unicode=bool_from_store,
2685
Flush repository changes onto physical disk?
2687
If true (default), repository changes are flushed through the OS buffers
2688
to physical disk. This is somewhat slower, but means data should not be
2689
lost if the machine crashes. See also dirstate.fdatasync.
2692
option_registry.register(
2693
Option('selftest.timeout',
2695
from_unicode=int_from_store,
2696
help='Abort selftest if one test takes longer than this many seconds',
2699
option_registry.register(
2700
Option('send_strict', default=None,
2701
from_unicode=bool_from_store,
2703
The default value for ``send --strict``.
2705
If present, defines the ``--strict`` option default value for checking
2706
uncommitted changes before pushing.
2709
option_registry.register(
2710
Option('serve.client_timeout',
2711
default=300.0, from_unicode=float_from_store,
2712
help="If we wait for a new request from a client for more than"
2713
" X seconds, consider the client idle, and hangup."))
2716
class Section(object):
2717
"""A section defines a dict of option name => value.
2719
This is merely a read-only dict which can add some knowledge about the
2720
options. It is *not* a python dict object though and doesn't try to mimic
2724
def __init__(self, section_id, options):
2725
self.id = section_id
2726
# We re-use the dict-like object received
2727
self.options = options
2729
def get(self, name, default=None, expand=True):
2730
return self.options.get(name, default)
2732
def iter_option_names(self):
2733
for k in self.options.iterkeys():
2737
# Mostly for debugging use
2738
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2741
_NewlyCreatedOption = object()
2742
"""Was the option created during the MutableSection lifetime"""
2745
class MutableSection(Section):
2746
"""A section allowing changes and keeping track of the original values."""
2748
def __init__(self, section_id, options):
2749
super(MutableSection, self).__init__(section_id, options)
2752
def set(self, name, value):
2753
if name not in self.options:
2754
# This is a new option
2755
self.orig[name] = _NewlyCreatedOption
2756
elif name not in self.orig:
2757
self.orig[name] = self.get(name, None)
2758
self.options[name] = value
2760
def remove(self, name):
2761
if name not in self.orig:
2762
self.orig[name] = self.get(name, None)
2763
del self.options[name]
2766
class Store(object):
2767
"""Abstract interface to persistent storage for configuration options."""
2769
readonly_section_class = Section
2770
mutable_section_class = MutableSection
2772
def is_loaded(self):
2773
"""Returns True if the Store has been loaded.
2775
This is used to implement lazy loading and ensure the persistent
2776
storage is queried only when needed.
2778
raise NotImplementedError(self.is_loaded)
2781
"""Loads the Store from persistent storage."""
2782
raise NotImplementedError(self.load)
2784
def _load_from_string(self, bytes):
2785
"""Create a store from a string in configobj syntax.
2787
:param bytes: A string representing the file content.
2789
raise NotImplementedError(self._load_from_string)
2792
"""Unloads the Store.
2794
This should make is_loaded() return False. This is used when the caller
2795
knows that the persistent storage has changed or may have change since
2798
raise NotImplementedError(self.unload)
2801
"""Saves the Store to persistent storage."""
2802
raise NotImplementedError(self.save)
2804
def external_url(self):
2805
raise NotImplementedError(self.external_url)
2807
def get_sections(self):
2808
"""Returns an ordered iterable of existing sections.
2810
:returns: An iterable of (store, section).
2812
raise NotImplementedError(self.get_sections)
2814
def get_mutable_section(self, section_id=None):
2815
"""Returns the specified mutable section.
2817
:param section_id: The section identifier
2819
raise NotImplementedError(self.get_mutable_section)
2822
# Mostly for debugging use
2823
return "<config.%s(%s)>" % (self.__class__.__name__,
2824
self.external_url())
2827
class CommandLineStore(Store):
2828
"A store to carry command line overrides for the config options."""
2830
def __init__(self, opts=None):
2831
super(CommandLineStore, self).__init__()
2837
# The dict should be cleared but not replaced so it can be shared.
2838
self.options.clear()
2840
def _from_cmdline(self, overrides):
2841
# Reset before accepting new definitions
2843
for over in overrides:
2845
name, value = over.split('=', 1)
2847
raise errors.BzrCommandError(
2848
gettext("Invalid '%s', should be of the form 'name=value'")
2850
self.options[name] = value
2852
def external_url(self):
2853
# Not an url but it makes debugging easier and is never needed
2857
def get_sections(self):
2858
yield self, self.readonly_section_class('cmdline_overrides',
2862
class IniFileStore(Store):
2863
"""A config Store using ConfigObj for storage.
2865
:ivar transport: The transport object where the config file is located.
2867
:ivar file_name: The config file basename in the transport directory.
2869
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2870
serialize/deserialize the config file.
2874
"""A config Store using ConfigObj for storage.
2876
super(IniFileStore, self).__init__()
2877
self._config_obj = None
2879
def is_loaded(self):
2880
return self._config_obj != None
2883
self._config_obj = None
2885
def _load_content(self):
2886
"""Load the config file bytes.
2888
This should be provided by subclasses
2890
:return: Byte string
2892
raise NotImplementedError(self._load_content)
2894
def _save_content(self, content):
2895
"""Save the config file bytes.
2897
This should be provided by subclasses
2899
:param content: Config file bytes to write
2901
raise NotImplementedError(self._save_content)
2904
"""Load the store from the associated file."""
2905
if self.is_loaded():
2907
content = self._load_content()
2908
self._load_from_string(content)
2909
for hook in ConfigHooks['load']:
2912
def _load_from_string(self, bytes):
2913
"""Create a config store from a string.
2915
:param bytes: A string representing the file content.
2917
if self.is_loaded():
2918
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2919
co_input = StringIO(bytes)
2921
# The config files are always stored utf8-encoded
2922
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2924
except configobj.ConfigObjError, e:
2925
self._config_obj = None
2926
raise errors.ParseConfigError(e.errors, self.external_url())
2927
except UnicodeDecodeError:
2928
raise errors.ConfigContentError(self.external_url())
2931
if not self.is_loaded():
2935
self._config_obj.write(out)
2936
self._save_content(out.getvalue())
2937
for hook in ConfigHooks['save']:
2940
def get_sections(self):
2941
"""Get the configobj section in the file order.
2943
:returns: An iterable of (store, section).
2945
# We need a loaded store
2948
except (errors.NoSuchFile, errors.PermissionDenied):
2949
# If the file can't be read, there is no sections
2951
cobj = self._config_obj
2953
yield self, self.readonly_section_class(None, cobj)
2954
for section_name in cobj.sections:
2956
self.readonly_section_class(section_name,
2957
cobj[section_name]))
2959
def get_mutable_section(self, section_id=None):
2960
# We need a loaded store
2963
except errors.NoSuchFile:
2964
# The file doesn't exist, let's pretend it was empty
2965
self._load_from_string('')
2966
if section_id is None:
2967
section = self._config_obj
2969
section = self._config_obj.setdefault(section_id, {})
2970
return self.mutable_section_class(section_id, section)
2973
class TransportIniFileStore(IniFileStore):
2974
"""IniFileStore that loads files from a transport.
2977
def __init__(self, transport, file_name):
2978
"""A Store using a ini file on a Transport
2980
:param transport: The transport object where the config file is located.
2981
:param file_name: The config file basename in the transport directory.
2983
super(TransportIniFileStore, self).__init__()
2984
self.transport = transport
2985
self.file_name = file_name
2987
def _load_content(self):
2989
return self.transport.get_bytes(self.file_name)
2990
except errors.PermissionDenied:
2991
trace.warning("Permission denied while trying to load "
2992
"configuration store %s.", self.external_url())
2995
def _save_content(self, content):
2996
self.transport.put_bytes(self.file_name, content)
2998
def external_url(self):
2999
# FIXME: external_url should really accepts an optional relpath
3000
# parameter (bug #750169) :-/ -- vila 2011-04-04
3001
# The following will do in the interim but maybe we don't want to
3002
# expose a path here but rather a config ID and its associated
3003
# object </hand wawe>.
3004
return urlutils.join(self.transport.external_url(), self.file_name)
3007
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3008
# unlockable stores for use with objects that can already ensure the locking
3009
# (think branches). If different stores (not based on ConfigObj) are created,
3010
# they may face the same issue.
3013
class LockableIniFileStore(TransportIniFileStore):
3014
"""A ConfigObjStore using locks on save to ensure store integrity."""
3016
def __init__(self, transport, file_name, lock_dir_name=None):
3017
"""A config Store using ConfigObj for storage.
3019
:param transport: The transport object where the config file is located.
3021
:param file_name: The config file basename in the transport directory.
3023
if lock_dir_name is None:
3024
lock_dir_name = 'lock'
3025
self.lock_dir_name = lock_dir_name
3026
super(LockableIniFileStore, self).__init__(transport, file_name)
3027
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3029
def lock_write(self, token=None):
3030
"""Takes a write lock in the directory containing the config file.
3032
If the directory doesn't exist it is created.
3034
# FIXME: This doesn't check the ownership of the created directories as
3035
# ensure_config_dir_exists does. It should if the transport is local
3036
# -- vila 2011-04-06
3037
self.transport.create_prefix()
3038
return self._lock.lock_write(token)
3043
def break_lock(self):
3044
self._lock.break_lock()
3048
# We need to be able to override the undecorated implementation
3049
self.save_without_locking()
3051
def save_without_locking(self):
3052
super(LockableIniFileStore, self).save()
3055
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3056
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3057
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3059
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3060
# functions or a registry will make it easier and clearer for tests, focusing
3061
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3062
# on a poolie's remark)
3063
class GlobalStore(LockableIniFileStore):
3065
def __init__(self, possible_transports=None):
3066
t = transport.get_transport_from_path(
3067
config_dir(), possible_transports=possible_transports)
3068
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3072
class LocationStore(LockableIniFileStore):
3074
def __init__(self, possible_transports=None):
3075
t = transport.get_transport_from_path(
3076
config_dir(), possible_transports=possible_transports)
3077
super(LocationStore, self).__init__(t, 'locations.conf')
3078
self.id = 'locations'
3081
class BranchStore(TransportIniFileStore):
3083
def __init__(self, branch):
3084
super(BranchStore, self).__init__(branch.control_transport,
3086
self.branch = branch
3089
def lock_write(self, token=None):
3090
return self.branch.lock_write(token)
3093
return self.branch.unlock()
3097
# We need to be able to override the undecorated implementation
3098
self.save_without_locking()
3100
def save_without_locking(self):
3101
super(BranchStore, self).save()
3104
class ControlStore(LockableIniFileStore):
3106
def __init__(self, bzrdir):
3107
super(ControlStore, self).__init__(bzrdir.transport,
3109
lock_dir_name='branch_lock')
3112
class SectionMatcher(object):
3113
"""Select sections into a given Store.
3115
This is intended to be used to postpone getting an iterable of sections
3119
def __init__(self, store):
3122
def get_sections(self):
3123
# This is where we require loading the store so we can see all defined
3125
sections = self.store.get_sections()
3126
# Walk the revisions in the order provided
3127
for store, s in sections:
3131
def match(self, section):
3132
"""Does the proposed section match.
3134
:param section: A Section object.
3136
:returns: True if the section matches, False otherwise.
3138
raise NotImplementedError(self.match)
3141
class NameMatcher(SectionMatcher):
3143
def __init__(self, store, section_id):
3144
super(NameMatcher, self).__init__(store)
3145
self.section_id = section_id
3147
def match(self, section):
3148
return section.id == self.section_id
3151
class LocationSection(Section):
3153
def __init__(self, section, length, extra_path):
3154
super(LocationSection, self).__init__(section.id, section.options)
3155
self.length = length
3156
self.extra_path = extra_path
3157
self.locals = {'relpath': extra_path,
3158
'basename': urlutils.basename(extra_path)}
3160
def get(self, name, default=None, expand=True):
3161
value = super(LocationSection, self).get(name, default)
3162
if value is not None and expand:
3163
policy_name = self.get(name + ':policy', None)
3164
policy = _policy_value.get(policy_name, POLICY_NONE)
3165
if policy == POLICY_APPENDPATH:
3166
value = urlutils.join(value, self.extra_path)
3167
# expand section local options right now (since POLICY_APPENDPATH
3168
# will never add options references, it's ok to expand after it).
3170
for is_ref, chunk in iter_option_refs(value):
3172
chunks.append(chunk)
3175
if ref in self.locals:
3176
chunks.append(self.locals[ref])
3178
chunks.append(chunk)
3179
value = ''.join(chunks)
3183
class LocationMatcher(SectionMatcher):
3185
def __init__(self, store, location):
3186
super(LocationMatcher, self).__init__(store)
3187
if location.startswith('file://'):
3188
location = urlutils.local_path_from_url(location)
3189
self.location = location
3191
def _get_matching_sections(self):
3192
"""Get all sections matching ``location``."""
3193
# We slightly diverge from LocalConfig here by allowing the no-name
3194
# section as the most generic one and the lower priority.
3195
no_name_section = None
3197
# Filter out the no_name_section so _iter_for_location_by_parts can be
3198
# used (it assumes all sections have a name).
3199
for _, section in self.store.get_sections():
3200
if section.id is None:
3201
no_name_section = section
3203
all_sections.append(section)
3204
# Unfortunately _iter_for_location_by_parts deals with section names so
3205
# we have to resync.
3206
filtered_sections = _iter_for_location_by_parts(
3207
[s.id for s in all_sections], self.location)
3208
iter_all_sections = iter(all_sections)
3209
matching_sections = []
3210
if no_name_section is not None:
3211
matching_sections.append(
3212
LocationSection(no_name_section, 0, self.location))
3213
for section_id, extra_path, length in filtered_sections:
3214
# a section id is unique for a given store so it's safe to take the
3215
# first matching section while iterating. Also, all filtered
3216
# sections are part of 'all_sections' and will always be found
3219
section = iter_all_sections.next()
3220
if section_id == section.id:
3221
matching_sections.append(
3222
LocationSection(section, length, extra_path))
3224
return matching_sections
3226
def get_sections(self):
3227
# Override the default implementation as we want to change the order
3228
matching_sections = self._get_matching_sections()
3229
# We want the longest (aka more specific) locations first
3230
sections = sorted(matching_sections,
3231
key=lambda section: (section.length, section.id),
3233
# Sections mentioning 'ignore_parents' restrict the selection
3234
for section in sections:
3235
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3236
ignore = section.get('ignore_parents', None)
3237
if ignore is not None:
3238
ignore = ui.bool_from_string(ignore)
3241
# Finally, we have a valid section
3242
yield self.store, section
3245
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3246
"""Describes an expandable option reference.
3248
We want to match the most embedded reference first.
3250
I.e. for '{{foo}}' we will get '{foo}',
3251
for '{bar{baz}}' we will get '{baz}'
3254
def iter_option_refs(string):
3255
# Split isolate refs so every other chunk is a ref
3257
for chunk in _option_ref_re.split(string):
3262
class Stack(object):
3263
"""A stack of configurations where an option can be defined"""
3265
def __init__(self, sections_def, store=None, mutable_section_id=None):
3266
"""Creates a stack of sections with an optional store for changes.
3268
:param sections_def: A list of Section or callables that returns an
3269
iterable of Section. This defines the Sections for the Stack and
3270
can be called repeatedly if needed.
3272
:param store: The optional Store where modifications will be
3273
recorded. If none is specified, no modifications can be done.
3275
:param mutable_section_id: The id of the MutableSection where changes
3276
are recorded. This requires the ``store`` parameter to be
3279
self.sections_def = sections_def
3281
self.mutable_section_id = mutable_section_id
3283
def get(self, name, expand=None):
3284
"""Return the *first* option value found in the sections.
3286
This is where we guarantee that sections coming from Store are loaded
3287
lazily: the loading is delayed until we need to either check that an
3288
option exists or get its value, which in turn may require to discover
3289
in which sections it can be defined. Both of these (section and option
3290
existence) require loading the store (even partially).
3292
:param name: The queried option.
3294
:param expand: Whether options references should be expanded.
3296
:returns: The value of the option.
3298
# FIXME: No caching of options nor sections yet -- vila 20110503
3300
expand = _get_expand_default_value()
3302
# Ensuring lazy loading is achieved by delaying section matching (which
3303
# implies querying the persistent storage) until it can't be avoided
3304
# anymore by using callables to describe (possibly empty) section
3306
for sections in self.sections_def:
3307
for store, section in sections():
3308
value = section.get(name)
3309
if value is not None:
3311
if value is not None:
3313
# If the option is registered, it may provide additional info about
3316
opt = option_registry.get(name)
3320
def expand_and_convert(val):
3321
# This may need to be called twice if the value is None or ends up
3322
# being None during expansion or conversion.
3325
if isinstance(val, basestring):
3326
val = self._expand_options_in_string(val)
3328
trace.warning('Cannot expand "%s":'
3329
' %s does not support option expansion'
3330
% (name, type(val)))
3332
val = opt.convert_from_unicode(val)
3334
value = expand_and_convert(value)
3335
if opt is not None and value is None:
3336
# If the option is registered, it may provide a default value
3337
value = opt.get_default()
3338
value = expand_and_convert(value)
3339
for hook in ConfigHooks['get']:
3340
hook(self, name, value)
3343
def expand_options(self, string, env=None):
3344
"""Expand option references in the string in the configuration context.
3346
:param string: The string containing option(s) to expand.
3348
:param env: An option dict defining additional configuration options or
3349
overriding existing ones.
3351
:returns: The expanded string.
3353
return self._expand_options_in_string(string, env)
3355
def _expand_options_in_string(self, string, env=None, _refs=None):
3356
"""Expand options in the string in the configuration context.
3358
:param string: The string to be expanded.
3360
:param env: An option dict defining additional configuration options or
3361
overriding existing ones.
3363
:param _refs: Private list (FIFO) containing the options being expanded
3366
:returns: The expanded string.
3369
# Not much to expand there
3372
# What references are currently resolved (to detect loops)
3375
# We need to iterate until no more refs appear ({{foo}} will need two
3376
# iterations for example).
3381
for is_ref, chunk in iter_option_refs(result):
3383
chunks.append(chunk)
3388
raise errors.OptionExpansionLoop(string, _refs)
3390
value = self._expand_option(name, env, _refs)
3392
raise errors.ExpandingUnknownOption(name, string)
3393
chunks.append(value)
3395
result = ''.join(chunks)
3398
def _expand_option(self, name, env, _refs):
3399
if env is not None and name in env:
3400
# Special case, values provided in env takes precedence over
3404
value = self.get(name, expand=False)
3405
value = self._expand_options_in_string(value, env, _refs)
3408
def _get_mutable_section(self):
3409
"""Get the MutableSection for the Stack.
3411
This is where we guarantee that the mutable section is lazily loaded:
3412
this means we won't load the corresponding store before setting a value
3413
or deleting an option. In practice the store will often be loaded but
3414
this helps catching some programming errors.
3416
section = self.store.get_mutable_section(self.mutable_section_id)
3419
def set(self, name, value):
3420
"""Set a new value for the option."""
3421
section = self._get_mutable_section()
3422
section.set(name, value)
3423
for hook in ConfigHooks['set']:
3424
hook(self, name, value)
3426
def remove(self, name):
3427
"""Remove an existing option."""
3428
section = self._get_mutable_section()
3429
section.remove(name)
3430
for hook in ConfigHooks['remove']:
3434
# Mostly for debugging use
3435
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3437
def _get_overrides(self):
3438
# Hack around library_state.initialize never called
3439
if bzrlib.global_state is not None:
3440
return bzrlib.global_state.cmdline_overrides.get_sections()
3444
class _CompatibleStack(Stack):
3445
"""Place holder for compatibility with previous design.
3447
This is intended to ease the transition from the Config-based design to the
3448
Stack-based design and should not be used nor relied upon by plugins.
3450
One assumption made here is that the daughter classes will all use Stores
3451
derived from LockableIniFileStore).
3453
It implements set() and remove () by re-loading the store before applying
3454
the modification and saving it.
3456
The long term plan being to implement a single write by store to save
3457
all modifications, this class should not be used in the interim.
3460
def set(self, name, value):
3463
super(_CompatibleStack, self).set(name, value)
3464
# Force a write to persistent storage
3467
def remove(self, name):
3470
super(_CompatibleStack, self).remove(name)
3471
# Force a write to persistent storage
3475
class GlobalStack(_CompatibleStack):
3476
"""Global options only stack."""
3480
gstore = GlobalStore()
3481
super(GlobalStack, self).__init__(
3482
[self._get_overrides, NameMatcher(gstore, 'DEFAULT').get_sections],
3483
gstore, mutable_section_id='DEFAULT')
3486
class LocationStack(_CompatibleStack):
3487
"""Per-location options falling back to global options stack."""
3489
def __init__(self, location):
3490
"""Make a new stack for a location and global configuration.
3492
:param location: A URL prefix to """
3493
lstore = LocationStore()
3494
if location.startswith('file://'):
3495
location = urlutils.local_path_from_url(location)
3496
matcher = LocationMatcher(lstore, location)
3497
gstore = GlobalStore()
3498
super(LocationStack, self).__init__(
3499
[self._get_overrides,
3500
matcher.get_sections, NameMatcher(gstore, 'DEFAULT').get_sections],
3501
lstore, mutable_section_id=location)
3504
class BranchStack(_CompatibleStack):
3505
"""Per-location options falling back to branch then global options stack."""
3507
def __init__(self, branch):
3508
bstore = branch._get_config_store()
3509
lstore = LocationStore()
3510
matcher = LocationMatcher(lstore, branch.base)
3511
gstore = GlobalStore()
3512
super(BranchStack, self).__init__(
3513
[self._get_overrides,
3514
matcher.get_sections, bstore.get_sections,
3515
NameMatcher(gstore, 'DEFAULT').get_sections],
3517
self.branch = branch
3520
class RemoteControlStack(_CompatibleStack):
3521
"""Remote control-only options stack."""
3523
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3524
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3525
# control.conf and is used only for stack options.
3527
def __init__(self, bzrdir):
3528
cstore = bzrdir._get_config_store()
3529
super(RemoteControlStack, self).__init__(
3530
[cstore.get_sections],
3532
self.bzrdir = bzrdir
3535
class RemoteBranchStack(_CompatibleStack):
3536
"""Remote branch-only options stack."""
3538
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3539
# with the stack used for remote branches. RemoteBranchStack only uses
3540
# branch.conf and is used only for the stack options.
3542
def __init__(self, branch):
3543
bstore = branch._get_config_store()
3544
super(RemoteBranchStack, self).__init__(
3545
[bstore.get_sections],
3547
self.branch = branch
3549
# Use a an empty dict to initialize an empty configobj avoiding all
3550
# parsing and encoding checks
3551
_quoting_config = configobj.ConfigObj(
3552
{}, encoding='utf-8', interpolation=False)
3554
class cmd_config(commands.Command):
3555
__doc__ = """Display, set or remove a configuration option.
3557
Display the active value for a given option.
3559
If --all is specified, NAME is interpreted as a regular expression and all
3560
matching options are displayed mentioning their scope. The active value
3561
that bzr will take into account is the first one displayed for each option.
3563
If no NAME is given, --all .* is implied.
3565
Setting a value is achieved by using name=value without spaces. The value
3566
is set in the most relevant scope and can be checked by displaying the
3570
takes_args = ['name?']
3574
# FIXME: This should be a registry option so that plugins can register
3575
# their own config files (or not) and will also address
3576
# http://pad.lv/788991 -- vila 20101115
3577
commands.Option('scope', help='Reduce the scope to the specified'
3578
' configuration file.',
3580
commands.Option('all',
3581
help='Display all the defined values for the matching options.',
3583
commands.Option('remove', help='Remove the option from'
3584
' the configuration file.'),
3587
_see_also = ['configuration']
3589
@commands.display_command
3590
def run(self, name=None, all=False, directory=None, scope=None,
3592
if directory is None:
3594
directory = urlutils.normalize_url(directory)
3596
raise errors.BzrError(
3597
'--all and --remove are mutually exclusive.')
3599
# Delete the option in the given scope
3600
self._remove_config_option(name, directory, scope)
3602
# Defaults to all options
3603
self._show_matching_options('.*', directory, scope)
3606
name, value = name.split('=', 1)
3608
# Display the option(s) value(s)
3610
self._show_matching_options(name, directory, scope)
3612
self._show_value(name, directory, scope)
3615
raise errors.BzrError(
3616
'Only one option can be set.')
3617
# Set the option value
3618
self._set_config_option(name, value, directory, scope)
3620
def _get_stack(self, directory, scope=None):
3621
"""Get the configuration stack specified by ``directory`` and ``scope``.
3623
:param directory: Where the configurations are derived from.
3625
:param scope: A specific config to start from.
3627
# FIXME: scope should allow access to plugin-specific stacks (even
3628
# reduced to the plugin-specific store), related to
3629
# http://pad.lv/788991 -- vila 2011-11-15
3630
if scope is not None:
3631
if scope == 'bazaar':
3632
return GlobalStack()
3633
elif scope == 'locations':
3634
return LocationStack(directory)
3635
elif scope == 'branch':
3637
controldir.ControlDir.open_containing_tree_or_branch(
3639
return br.get_config_stack()
3640
raise errors.NoSuchConfig(scope)
3644
controldir.ControlDir.open_containing_tree_or_branch(
3646
return br.get_config_stack()
3647
except errors.NotBranchError:
3648
return LocationStack(directory)
3650
def _show_value(self, name, directory, scope):
3651
conf = self._get_stack(directory, scope)
3652
value = conf.get(name, expand=True)
3653
if value is not None:
3654
# Quote the value appropriately
3655
value = _quoting_config._quote(value)
3656
self.outf.write('%s\n' % (value,))
3658
raise errors.NoSuchConfigOption(name)
3660
def _show_matching_options(self, name, directory, scope):
3661
name = lazy_regex.lazy_compile(name)
3662
# We want any error in the regexp to be raised *now* so we need to
3663
# avoid the delay introduced by the lazy regexp. But, we still do
3664
# want the nicer errors raised by lazy_regex.
3665
name._compile_and_collapse()
3668
conf = self._get_stack(directory, scope)
3669
for sections in conf.sections_def:
3670
for store, section in sections():
3671
for oname in section.iter_option_names():
3672
if name.search(oname):
3673
if cur_store_id != store.id:
3674
# Explain where the options are defined
3675
self.outf.write('%s:\n' % (store.id,))
3676
cur_store_id = store.id
3678
if (section.id not in (None, 'DEFAULT')
3679
and cur_section != section.id):
3680
# Display the section if it's not the default (or
3682
self.outf.write(' [%s]\n' % (section.id,))
3683
cur_section = section.id
3684
value = section.get(oname, expand=False)
3685
value = _quoting_config._quote(value)
3686
self.outf.write(' %s = %s\n' % (oname, value))
3688
def _set_config_option(self, name, value, directory, scope):
3689
conf = self._get_stack(directory, scope)
3690
conf.set(name, value)
3692
def _remove_config_option(self, name, directory, scope):
3694
raise errors.BzrCommandError(
3695
'--remove expects an option to remove.')
3696
conf = self._get_stack(directory, scope)
3700
raise errors.NoSuchConfigOption(name)
3705
# We need adapters that can build a Store or a Stack in a test context. Test
3706
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3707
# themselves. The builder will receive a test instance and should return a
3708
# ready-to-use store or stack. Plugins that define new store/stacks can also
3709
# register themselves here to be tested against the tests defined in
3710
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3711
# for the same test.
3713
# The registered object should be a callable receiving a test instance
3714
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3716
test_store_builder_registry = registry.Registry()
3718
# The registered object should be a callable receiving a test instance
3719
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3721
test_stack_builder_registry = registry.Registry()