1508
2276
configobj[name] = value
1510
2278
configobj.setdefault(section, {})[name] = value
2279
for hook in OldConfigHooks['set']:
2280
hook(self, name, value)
2281
self._set_configobj(configobj)
2283
def remove_option(self, option_name, section_name=None):
2284
configobj = self._get_configobj()
2285
if section_name is None:
2286
del configobj[option_name]
2288
del configobj[section_name][option_name]
2289
for hook in OldConfigHooks['remove']:
2290
hook(self, option_name)
1511
2291
self._set_configobj(configobj)
1513
2293
def _get_config_file(self):
1515
return StringIO(self._transport.get_bytes(self._filename))
2295
f = StringIO(self._transport.get_bytes(self._filename))
2296
for hook in OldConfigHooks['load']:
1516
2299
except errors.NoSuchFile:
1517
2300
return StringIO()
2301
except errors.PermissionDenied, e:
2302
trace.warning("Permission denied while trying to open "
2303
"configuration file %s.", urlutils.unescape_for_display(
2304
urlutils.join(self._transport.base, self._filename), "utf-8"))
2307
def _external_url(self):
2308
return urlutils.join(self._transport.external_url(), self._filename)
1519
2310
def _get_configobj(self):
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2311
f = self._get_config_file()
2314
conf = ConfigObj(f, encoding='utf-8')
2315
except configobj.ConfigObjError, e:
2316
raise errors.ParseConfigError(e.errors, self._external_url())
2317
except UnicodeDecodeError:
2318
raise errors.ConfigContentError(self._external_url())
1522
2323
def _set_configobj(self, configobj):
1523
2324
out_file = StringIO()
1524
2325
configobj.write(out_file)
1525
2326
out_file.seek(0)
1526
2327
self._transport.put_file(self._filename, out_file)
2328
for hook in OldConfigHooks['save']:
2332
class Option(object):
2333
"""An option definition.
2335
The option *values* are stored in config files and found in sections.
2337
Here we define various properties about the option itself, its default
2338
value, how to convert it from stores, what to do when invalid values are
2339
encoutered, in which config files it can be stored.
2342
def __init__(self, name, default=None, default_from_env=None,
2343
help=None, from_unicode=None, invalid=None):
2344
"""Build an option definition.
2346
:param name: the name used to refer to the option.
2348
:param default: the default value to use when none exist in the config
2349
stores. This is either a string that ``from_unicode`` will convert
2350
into the proper type, a callable returning a unicode string so that
2351
``from_unicode`` can be used on the return value, or a python
2352
object that can be stringified (so only the empty list is supported
2355
:param default_from_env: A list of environment variables which can
2356
provide a default value. 'default' will be used only if none of the
2357
variables specified here are set in the environment.
2359
:param help: a doc string to explain the option to the user.
2361
:param from_unicode: a callable to convert the unicode string
2362
representing the option value in a store. This is not called for
2365
:param invalid: the action to be taken when an invalid value is
2366
encountered in a store. This is called only when from_unicode is
2367
invoked to convert a string and returns None or raise ValueError or
2368
TypeError. Accepted values are: None (ignore invalid values),
2369
'warning' (emit a warning), 'error' (emit an error message and
2372
if default_from_env is None:
2373
default_from_env = []
2375
# Convert the default value to a unicode string so all values are
2376
# strings internally before conversion (via from_unicode) is attempted.
2379
elif isinstance(default, list):
2380
# Only the empty list is supported
2382
raise AssertionError(
2383
'Only empty lists are supported as default values')
2385
elif isinstance(default, (str, unicode, bool, int, float)):
2386
# Rely on python to convert strings, booleans and integers
2387
self.default = u'%s' % (default,)
2388
elif callable(default):
2389
self.default = default
2391
# other python objects are not expected
2392
raise AssertionError('%r is not supported as a default value'
2394
self.default_from_env = default_from_env
2396
self.from_unicode = from_unicode
2397
if invalid and invalid not in ('warning', 'error'):
2398
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2399
self.invalid = invalid
2401
def convert_from_unicode(self, unicode_value):
2402
if self.from_unicode is None or unicode_value is None:
2403
# Don't convert or nothing to convert
2404
return unicode_value
2406
converted = self.from_unicode(unicode_value)
2407
except (ValueError, TypeError):
2408
# Invalid values are ignored
2410
if converted is None and self.invalid is not None:
2411
# The conversion failed
2412
if self.invalid == 'warning':
2413
trace.warning('Value "%s" is not valid for "%s"',
2414
unicode_value, self.name)
2415
elif self.invalid == 'error':
2416
raise errors.ConfigOptionValueError(self.name, unicode_value)
2419
def get_default(self):
2421
for var in self.default_from_env:
2423
# If the env variable is defined, its value is the default one
2424
value = os.environ[var].decode(osutils.get_user_encoding())
2429
# Otherwise, fallback to the value defined at registration
2430
if callable(self.default):
2431
value = self.default()
2432
if not isinstance(value, unicode):
2433
raise AssertionError(
2434
'Callable default values should be unicode')
2436
value = self.default
2439
def get_help_text(self, additional_see_also=None, plain=True):
2441
from bzrlib import help_topics
2442
result += help_topics._format_see_also(additional_see_also)
2444
result = help_topics.help_as_plain_text(result)
2448
# Predefined converters to get proper values from store
2450
def bool_from_store(unicode_str):
2451
return ui.bool_from_string(unicode_str)
2454
def int_from_store(unicode_str):
2455
return int(unicode_str)
2458
def float_from_store(unicode_str):
2459
return float(unicode_str)
2462
# Use a an empty dict to initialize an empty configobj avoiding all
2463
# parsing and encoding checks
2464
_list_converter_config = configobj.ConfigObj(
2465
{}, encoding='utf-8', list_values=True, interpolation=False)
2468
def list_from_store(unicode_str):
2469
if not isinstance(unicode_str, basestring):
2471
# Now inject our string directly as unicode. All callers got their value
2472
# from configobj, so values that need to be quoted are already properly
2474
_list_converter_config.reset()
2475
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2476
maybe_list = _list_converter_config['list']
2477
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2478
if isinstance(maybe_list, basestring):
2480
# A single value, most probably the user forgot (or didn't care to
2481
# add) the final ','
2484
# The empty string, convert to empty list
2487
# We rely on ConfigObj providing us with a list already
2492
class OptionRegistry(registry.Registry):
2493
"""Register config options by their name.
2495
This overrides ``registry.Registry`` to simplify registration by acquiring
2496
some information from the option object itself.
2499
def register(self, option):
2500
"""Register a new option to its name.
2502
:param option: The option to register. Its name is used as the key.
2504
super(OptionRegistry, self).register(option.name, option,
2507
def register_lazy(self, key, module_name, member_name):
2508
"""Register a new option to be loaded on request.
2510
:param key: the key to request the option later. Since the registration
2511
is lazy, it should be provided and match the option name.
2513
:param module_name: the python path to the module. Such as 'os.path'.
2515
:param member_name: the member of the module to return. If empty or
2516
None, get() will return the module itself.
2518
super(OptionRegistry, self).register_lazy(key,
2519
module_name, member_name)
2521
def get_help(self, key=None):
2522
"""Get the help text associated with the given key"""
2523
option = self.get(key)
2524
the_help = option.help
2525
if callable(the_help):
2526
return the_help(self, key)
2530
option_registry = OptionRegistry()
2533
# Registered options in lexicographical order
2535
option_registry.register(
2536
Option('acceptable_keys',
2537
default=None, from_unicode=list_from_store,
2539
List of GPG key patterns which are acceptable for verification.
2541
option_registry.register(
2542
Option('bzr.workingtree.worth_saving_limit', default=10,
2543
from_unicode=int_from_store, invalid='warning',
2545
How many changes before saving the dirstate.
2547
-1 means that we will never rewrite the dirstate file for only
2548
stat-cache changes. Regardless of this setting, we will always rewrite
2549
the dirstate file if a file is added/removed/renamed/etc. This flag only
2550
affects the behavior of updating the dirstate file after we notice that
2551
a file has been touched.
2553
option_registry.register(
2554
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2555
from_unicode=signature_policy_from_unicode,
2557
GPG checking policy.
2559
Possible values: require, ignore, check-available (default)
2561
this option will control whether bzr will require good gpg
2562
signatures, ignore them, or check them if they are
2565
option_registry.register(
2566
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2567
from_unicode=signing_policy_from_unicode,
2571
Possible values: always, never, when-required (default)
2573
This option controls whether bzr will always create
2574
gpg signatures or not on commits.
2576
option_registry.register(
2577
Option('dirstate.fdatasync', default=True,
2578
from_unicode=bool_from_store,
2580
Flush dirstate changes onto physical disk?
2582
If true (default), working tree metadata changes are flushed through the
2583
OS buffers to physical disk. This is somewhat slower, but means data
2584
should not be lost if the machine crashes. See also repository.fdatasync.
2586
option_registry.register(
2587
Option('debug_flags', default=[], from_unicode=list_from_store,
2588
help='Debug flags to activate.'))
2589
option_registry.register(
2590
Option('default_format', default='2a',
2591
help='Format used when creating branches.'))
2592
option_registry.register(
2593
Option('dpush_strict', default=None,
2594
from_unicode=bool_from_store,
2596
The default value for ``dpush --strict``.
2598
If present, defines the ``--strict`` option default value for checking
2599
uncommitted changes before pushing into a different VCS without any
2600
custom bzr metadata.
2602
option_registry.register(
2604
help='The command called to launch an editor to enter a message.'))
2605
option_registry.register(
2606
Option('email', default=default_email,
2607
from_unicode=email_from_store,
2608
help='The users identity'))
2609
option_registry.register(
2610
Option('gpg_signing_command',
2613
Program to use use for creating signatures.
2615
This should support at least the -u and --clearsign options.
2617
option_registry.register(
2618
Option('gpg_signing_key',
2621
GPG key to use for signing.
2623
This defaults to the first key associated with the users email.
2625
option_registry.register(
2626
Option('ignore_missing_extensions', default=False,
2627
from_unicode=bool_from_store,
2629
Control the missing extensions warning display.
2631
The warning will not be emitted if set to True.
2633
option_registry.register(
2635
help='Language to translate messages into.'))
2636
option_registry.register(
2637
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2639
Steal locks that appears to be dead.
2641
If set to True, bzr will check if a lock is supposed to be held by an
2642
active process from the same user on the same machine. If the user and
2643
machine match, but no process with the given PID is active, then bzr
2644
will automatically break the stale lock, and create a new lock for
2646
Otherwise, bzr will prompt as normal to break the lock.
2648
option_registry.register(
2649
Option('log_format', default='long',
2651
Log format to use when displaying revisions.
2653
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2654
may be provided by plugins.
2656
option_registry.register(
2657
Option('output_encoding',
2658
help= 'Unicode encoding for output'
2659
' (terminal encoding if not specified).'))
2660
option_registry.register(
2661
Option('post_commit', default=None,
2663
Post commit functions.
2665
An ordered list of python functions to call, separated by spaces.
2667
Each function takes branch, rev_id as parameters.
2669
option_registry.register(
2670
Option('push_strict', default=None,
2671
from_unicode=bool_from_store,
2673
The default value for ``push --strict``.
2675
If present, defines the ``--strict`` option default value for checking
2676
uncommitted changes before sending a merge directive.
2678
option_registry.register(
2679
Option('repository.fdatasync', default=True,
2680
from_unicode=bool_from_store,
2682
Flush repository changes onto physical disk?
2684
If true (default), repository changes are flushed through the OS buffers
2685
to physical disk. This is somewhat slower, but means data should not be
2686
lost if the machine crashes. See also dirstate.fdatasync.
2689
option_registry.register(
2690
Option('selftest.timeout',
2692
from_unicode=int_from_store,
2693
help='Abort selftest if one test takes longer than this many seconds',
2696
option_registry.register(
2697
Option('send_strict', default=None,
2698
from_unicode=bool_from_store,
2700
The default value for ``send --strict``.
2702
If present, defines the ``--strict`` option default value for checking
2703
uncommitted changes before pushing.
2706
option_registry.register(
2707
Option('serve.client_timeout',
2708
default=300.0, from_unicode=float_from_store,
2709
help="If we wait for a new request from a client for more than"
2710
" X seconds, consider the client idle, and hangup."))
2713
class Section(object):
2714
"""A section defines a dict of option name => value.
2716
This is merely a read-only dict which can add some knowledge about the
2717
options. It is *not* a python dict object though and doesn't try to mimic
2721
def __init__(self, section_id, options):
2722
self.id = section_id
2723
# We re-use the dict-like object received
2724
self.options = options
2726
def get(self, name, default=None, expand=True):
2727
return self.options.get(name, default)
2729
def iter_option_names(self):
2730
for k in self.options.iterkeys():
2734
# Mostly for debugging use
2735
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2738
_NewlyCreatedOption = object()
2739
"""Was the option created during the MutableSection lifetime"""
2742
class MutableSection(Section):
2743
"""A section allowing changes and keeping track of the original values."""
2745
def __init__(self, section_id, options):
2746
super(MutableSection, self).__init__(section_id, options)
2749
def set(self, name, value):
2750
if name not in self.options:
2751
# This is a new option
2752
self.orig[name] = _NewlyCreatedOption
2753
elif name not in self.orig:
2754
self.orig[name] = self.get(name, None)
2755
self.options[name] = value
2757
def remove(self, name):
2758
if name not in self.orig:
2759
self.orig[name] = self.get(name, None)
2760
del self.options[name]
2763
class Store(object):
2764
"""Abstract interface to persistent storage for configuration options."""
2766
readonly_section_class = Section
2767
mutable_section_class = MutableSection
2769
def is_loaded(self):
2770
"""Returns True if the Store has been loaded.
2772
This is used to implement lazy loading and ensure the persistent
2773
storage is queried only when needed.
2775
raise NotImplementedError(self.is_loaded)
2778
"""Loads the Store from persistent storage."""
2779
raise NotImplementedError(self.load)
2781
def _load_from_string(self, bytes):
2782
"""Create a store from a string in configobj syntax.
2784
:param bytes: A string representing the file content.
2786
raise NotImplementedError(self._load_from_string)
2789
"""Unloads the Store.
2791
This should make is_loaded() return False. This is used when the caller
2792
knows that the persistent storage has changed or may have change since
2795
raise NotImplementedError(self.unload)
2798
"""Saves the Store to persistent storage."""
2799
raise NotImplementedError(self.save)
2801
def external_url(self):
2802
raise NotImplementedError(self.external_url)
2804
def get_sections(self):
2805
"""Returns an ordered iterable of existing sections.
2807
:returns: An iterable of (store, section).
2809
raise NotImplementedError(self.get_sections)
2811
def get_mutable_section(self, section_id=None):
2812
"""Returns the specified mutable section.
2814
:param section_id: The section identifier
2816
raise NotImplementedError(self.get_mutable_section)
2819
# Mostly for debugging use
2820
return "<config.%s(%s)>" % (self.__class__.__name__,
2821
self.external_url())
2824
class CommandLineStore(Store):
2825
"A store to carry command line overrides for the config options."""
2827
def __init__(self, opts=None):
2828
super(CommandLineStore, self).__init__()
2834
# The dict should be cleared but not replaced so it can be shared.
2835
self.options.clear()
2837
def _from_cmdline(self, overrides):
2838
# Reset before accepting new definitions
2840
for over in overrides:
2842
name, value = over.split('=', 1)
2844
raise errors.BzrCommandError(
2845
gettext("Invalid '%s', should be of the form 'name=value'")
2847
self.options[name] = value
2849
def external_url(self):
2850
# Not an url but it makes debugging easier and is never needed
2854
def get_sections(self):
2855
yield self, self.readonly_section_class('cmdline_overrides',
2859
class IniFileStore(Store):
2860
"""A config Store using ConfigObj for storage.
2862
:ivar transport: The transport object where the config file is located.
2864
:ivar file_name: The config file basename in the transport directory.
2866
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2867
serialize/deserialize the config file.
2871
"""A config Store using ConfigObj for storage.
2873
super(IniFileStore, self).__init__()
2874
self._config_obj = None
2876
def is_loaded(self):
2877
return self._config_obj != None
2880
self._config_obj = None
2882
def _load_content(self):
2883
"""Load the config file bytes.
2885
This should be provided by subclasses
2887
:return: Byte string
2889
raise NotImplementedError(self._load_content)
2891
def _save_content(self, content):
2892
"""Save the config file bytes.
2894
This should be provided by subclasses
2896
:param content: Config file bytes to write
2898
raise NotImplementedError(self._save_content)
2901
"""Load the store from the associated file."""
2902
if self.is_loaded():
2904
content = self._load_content()
2905
self._load_from_string(content)
2906
for hook in ConfigHooks['load']:
2909
def _load_from_string(self, bytes):
2910
"""Create a config store from a string.
2912
:param bytes: A string representing the file content.
2914
if self.is_loaded():
2915
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2916
co_input = StringIO(bytes)
2918
# The config files are always stored utf8-encoded
2919
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2921
except configobj.ConfigObjError, e:
2922
self._config_obj = None
2923
raise errors.ParseConfigError(e.errors, self.external_url())
2924
except UnicodeDecodeError:
2925
raise errors.ConfigContentError(self.external_url())
2928
if not self.is_loaded():
2932
self._config_obj.write(out)
2933
self._save_content(out.getvalue())
2934
for hook in ConfigHooks['save']:
2937
def get_sections(self):
2938
"""Get the configobj section in the file order.
2940
:returns: An iterable of (store, section).
2942
# We need a loaded store
2945
except (errors.NoSuchFile, errors.PermissionDenied):
2946
# If the file can't be read, there is no sections
2948
cobj = self._config_obj
2950
yield self, self.readonly_section_class(None, cobj)
2951
for section_name in cobj.sections:
2953
self.readonly_section_class(section_name,
2954
cobj[section_name]))
2956
def get_mutable_section(self, section_id=None):
2957
# We need a loaded store
2960
except errors.NoSuchFile:
2961
# The file doesn't exist, let's pretend it was empty
2962
self._load_from_string('')
2963
if section_id is None:
2964
section = self._config_obj
2966
section = self._config_obj.setdefault(section_id, {})
2967
return self.mutable_section_class(section_id, section)
2970
class TransportIniFileStore(IniFileStore):
2971
"""IniFileStore that loads files from a transport.
2974
def __init__(self, transport, file_name):
2975
"""A Store using a ini file on a Transport
2977
:param transport: The transport object where the config file is located.
2978
:param file_name: The config file basename in the transport directory.
2980
super(TransportIniFileStore, self).__init__()
2981
self.transport = transport
2982
self.file_name = file_name
2984
def _load_content(self):
2986
return self.transport.get_bytes(self.file_name)
2987
except errors.PermissionDenied:
2988
trace.warning("Permission denied while trying to load "
2989
"configuration store %s.", self.external_url())
2992
def _save_content(self, content):
2993
self.transport.put_bytes(self.file_name, content)
2995
def external_url(self):
2996
# FIXME: external_url should really accepts an optional relpath
2997
# parameter (bug #750169) :-/ -- vila 2011-04-04
2998
# The following will do in the interim but maybe we don't want to
2999
# expose a path here but rather a config ID and its associated
3000
# object </hand wawe>.
3001
return urlutils.join(self.transport.external_url(), self.file_name)
3004
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3005
# unlockable stores for use with objects that can already ensure the locking
3006
# (think branches). If different stores (not based on ConfigObj) are created,
3007
# they may face the same issue.
3010
class LockableIniFileStore(TransportIniFileStore):
3011
"""A ConfigObjStore using locks on save to ensure store integrity."""
3013
def __init__(self, transport, file_name, lock_dir_name=None):
3014
"""A config Store using ConfigObj for storage.
3016
:param transport: The transport object where the config file is located.
3018
:param file_name: The config file basename in the transport directory.
3020
if lock_dir_name is None:
3021
lock_dir_name = 'lock'
3022
self.lock_dir_name = lock_dir_name
3023
super(LockableIniFileStore, self).__init__(transport, file_name)
3024
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3026
def lock_write(self, token=None):
3027
"""Takes a write lock in the directory containing the config file.
3029
If the directory doesn't exist it is created.
3031
# FIXME: This doesn't check the ownership of the created directories as
3032
# ensure_config_dir_exists does. It should if the transport is local
3033
# -- vila 2011-04-06
3034
self.transport.create_prefix()
3035
return self._lock.lock_write(token)
3040
def break_lock(self):
3041
self._lock.break_lock()
3045
# We need to be able to override the undecorated implementation
3046
self.save_without_locking()
3048
def save_without_locking(self):
3049
super(LockableIniFileStore, self).save()
3052
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3053
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3054
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3056
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3057
# functions or a registry will make it easier and clearer for tests, focusing
3058
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3059
# on a poolie's remark)
3060
class GlobalStore(LockableIniFileStore):
3062
def __init__(self, possible_transports=None):
3063
t = transport.get_transport_from_path(
3064
config_dir(), possible_transports=possible_transports)
3065
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3069
class LocationStore(LockableIniFileStore):
3071
def __init__(self, possible_transports=None):
3072
t = transport.get_transport_from_path(
3073
config_dir(), possible_transports=possible_transports)
3074
super(LocationStore, self).__init__(t, 'locations.conf')
3075
self.id = 'locations'
3078
class BranchStore(TransportIniFileStore):
3080
def __init__(self, branch):
3081
super(BranchStore, self).__init__(branch.control_transport,
3083
self.branch = branch
3086
def lock_write(self, token=None):
3087
return self.branch.lock_write(token)
3090
return self.branch.unlock()
3094
# We need to be able to override the undecorated implementation
3095
self.save_without_locking()
3097
def save_without_locking(self):
3098
super(BranchStore, self).save()
3101
class ControlStore(LockableIniFileStore):
3103
def __init__(self, bzrdir):
3104
super(ControlStore, self).__init__(bzrdir.transport,
3106
lock_dir_name='branch_lock')
3109
class SectionMatcher(object):
3110
"""Select sections into a given Store.
3112
This is intended to be used to postpone getting an iterable of sections
3116
def __init__(self, store):
3119
def get_sections(self):
3120
# This is where we require loading the store so we can see all defined
3122
sections = self.store.get_sections()
3123
# Walk the revisions in the order provided
3124
for store, s in sections:
3128
def match(self, section):
3129
"""Does the proposed section match.
3131
:param section: A Section object.
3133
:returns: True if the section matches, False otherwise.
3135
raise NotImplementedError(self.match)
3138
class NameMatcher(SectionMatcher):
3140
def __init__(self, store, section_id):
3141
super(NameMatcher, self).__init__(store)
3142
self.section_id = section_id
3144
def match(self, section):
3145
return section.id == self.section_id
3148
class LocationSection(Section):
3150
def __init__(self, section, length, extra_path):
3151
super(LocationSection, self).__init__(section.id, section.options)
3152
self.length = length
3153
self.extra_path = extra_path
3154
self.locals = {'relpath': extra_path,
3155
'basename': urlutils.basename(extra_path)}
3157
def get(self, name, default=None, expand=True):
3158
value = super(LocationSection, self).get(name, default)
3159
if value is not None and expand:
3160
policy_name = self.get(name + ':policy', None)
3161
policy = _policy_value.get(policy_name, POLICY_NONE)
3162
if policy == POLICY_APPENDPATH:
3163
value = urlutils.join(value, self.extra_path)
3164
# expand section local options right now (since POLICY_APPENDPATH
3165
# will never add options references, it's ok to expand after it).
3167
for is_ref, chunk in iter_option_refs(value):
3169
chunks.append(chunk)
3172
if ref in self.locals:
3173
chunks.append(self.locals[ref])
3175
chunks.append(chunk)
3176
value = ''.join(chunks)
3180
class LocationMatcher(SectionMatcher):
3182
def __init__(self, store, location):
3183
super(LocationMatcher, self).__init__(store)
3184
if location.startswith('file://'):
3185
location = urlutils.local_path_from_url(location)
3186
self.location = location
3188
def _get_matching_sections(self):
3189
"""Get all sections matching ``location``."""
3190
# We slightly diverge from LocalConfig here by allowing the no-name
3191
# section as the most generic one and the lower priority.
3192
no_name_section = None
3194
# Filter out the no_name_section so _iter_for_location_by_parts can be
3195
# used (it assumes all sections have a name).
3196
for _, section in self.store.get_sections():
3197
if section.id is None:
3198
no_name_section = section
3200
all_sections.append(section)
3201
# Unfortunately _iter_for_location_by_parts deals with section names so
3202
# we have to resync.
3203
filtered_sections = _iter_for_location_by_parts(
3204
[s.id for s in all_sections], self.location)
3205
iter_all_sections = iter(all_sections)
3206
matching_sections = []
3207
if no_name_section is not None:
3208
matching_sections.append(
3209
LocationSection(no_name_section, 0, self.location))
3210
for section_id, extra_path, length in filtered_sections:
3211
# a section id is unique for a given store so it's safe to take the
3212
# first matching section while iterating. Also, all filtered
3213
# sections are part of 'all_sections' and will always be found
3216
section = iter_all_sections.next()
3217
if section_id == section.id:
3218
matching_sections.append(
3219
LocationSection(section, length, extra_path))
3221
return matching_sections
3223
def get_sections(self):
3224
# Override the default implementation as we want to change the order
3225
matching_sections = self._get_matching_sections()
3226
# We want the longest (aka more specific) locations first
3227
sections = sorted(matching_sections,
3228
key=lambda section: (section.length, section.id),
3230
# Sections mentioning 'ignore_parents' restrict the selection
3231
for section in sections:
3232
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3233
ignore = section.get('ignore_parents', None)
3234
if ignore is not None:
3235
ignore = ui.bool_from_string(ignore)
3238
# Finally, we have a valid section
3239
yield self.store, section
3242
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3243
"""Describes an expandable option reference.
3245
We want to match the most embedded reference first.
3247
I.e. for '{{foo}}' we will get '{foo}',
3248
for '{bar{baz}}' we will get '{baz}'
3251
def iter_option_refs(string):
3252
# Split isolate refs so every other chunk is a ref
3254
for chunk in _option_ref_re.split(string):
3259
class Stack(object):
3260
"""A stack of configurations where an option can be defined"""
3262
def __init__(self, sections_def, store=None, mutable_section_id=None):
3263
"""Creates a stack of sections with an optional store for changes.
3265
:param sections_def: A list of Section or callables that returns an
3266
iterable of Section. This defines the Sections for the Stack and
3267
can be called repeatedly if needed.
3269
:param store: The optional Store where modifications will be
3270
recorded. If none is specified, no modifications can be done.
3272
:param mutable_section_id: The id of the MutableSection where changes
3273
are recorded. This requires the ``store`` parameter to be
3276
self.sections_def = sections_def
3278
self.mutable_section_id = mutable_section_id
3280
def get(self, name, expand=None):
3281
"""Return the *first* option value found in the sections.
3283
This is where we guarantee that sections coming from Store are loaded
3284
lazily: the loading is delayed until we need to either check that an
3285
option exists or get its value, which in turn may require to discover
3286
in which sections it can be defined. Both of these (section and option
3287
existence) require loading the store (even partially).
3289
:param name: The queried option.
3291
:param expand: Whether options references should be expanded.
3293
:returns: The value of the option.
3295
# FIXME: No caching of options nor sections yet -- vila 20110503
3297
expand = _get_expand_default_value()
3299
# Ensuring lazy loading is achieved by delaying section matching (which
3300
# implies querying the persistent storage) until it can't be avoided
3301
# anymore by using callables to describe (possibly empty) section
3303
for sections in self.sections_def:
3304
for store, section in sections():
3305
value = section.get(name)
3306
if value is not None:
3308
if value is not None:
3310
# If the option is registered, it may provide additional info about
3313
opt = option_registry.get(name)
3317
def expand_and_convert(val):
3318
# This may need to be called twice if the value is None or ends up
3319
# being None during expansion or conversion.
3322
if isinstance(val, basestring):
3323
val = self._expand_options_in_string(val)
3325
trace.warning('Cannot expand "%s":'
3326
' %s does not support option expansion'
3327
% (name, type(val)))
3329
val = opt.convert_from_unicode(val)
3331
value = expand_and_convert(value)
3332
if opt is not None and value is None:
3333
# If the option is registered, it may provide a default value
3334
value = opt.get_default()
3335
value = expand_and_convert(value)
3336
for hook in ConfigHooks['get']:
3337
hook(self, name, value)
3340
def expand_options(self, string, env=None):
3341
"""Expand option references in the string in the configuration context.
3343
:param string: The string containing option(s) to expand.
3345
:param env: An option dict defining additional configuration options or
3346
overriding existing ones.
3348
:returns: The expanded string.
3350
return self._expand_options_in_string(string, env)
3352
def _expand_options_in_string(self, string, env=None, _refs=None):
3353
"""Expand options in the string in the configuration context.
3355
:param string: The string to be expanded.
3357
:param env: An option dict defining additional configuration options or
3358
overriding existing ones.
3360
:param _refs: Private list (FIFO) containing the options being expanded
3363
:returns: The expanded string.
3366
# Not much to expand there
3369
# What references are currently resolved (to detect loops)
3372
# We need to iterate until no more refs appear ({{foo}} will need two
3373
# iterations for example).
3378
for is_ref, chunk in iter_option_refs(result):
3380
chunks.append(chunk)
3385
raise errors.OptionExpansionLoop(string, _refs)
3387
value = self._expand_option(name, env, _refs)
3389
raise errors.ExpandingUnknownOption(name, string)
3390
chunks.append(value)
3392
result = ''.join(chunks)
3395
def _expand_option(self, name, env, _refs):
3396
if env is not None and name in env:
3397
# Special case, values provided in env takes precedence over
3401
value = self.get(name, expand=False)
3402
value = self._expand_options_in_string(value, env, _refs)
3405
def _get_mutable_section(self):
3406
"""Get the MutableSection for the Stack.
3408
This is where we guarantee that the mutable section is lazily loaded:
3409
this means we won't load the corresponding store before setting a value
3410
or deleting an option. In practice the store will often be loaded but
3411
this helps catching some programming errors.
3413
section = self.store.get_mutable_section(self.mutable_section_id)
3416
def set(self, name, value):
3417
"""Set a new value for the option."""
3418
section = self._get_mutable_section()
3419
section.set(name, value)
3420
for hook in ConfigHooks['set']:
3421
hook(self, name, value)
3423
def remove(self, name):
3424
"""Remove an existing option."""
3425
section = self._get_mutable_section()
3426
section.remove(name)
3427
for hook in ConfigHooks['remove']:
3431
# Mostly for debugging use
3432
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3434
def _get_overrides(self):
3435
# Hack around library_state.initialize never called
3436
if bzrlib.global_state is not None:
3437
return bzrlib.global_state.cmdline_overrides.get_sections()
3441
class _CompatibleStack(Stack):
3442
"""Place holder for compatibility with previous design.
3444
This is intended to ease the transition from the Config-based design to the
3445
Stack-based design and should not be used nor relied upon by plugins.
3447
One assumption made here is that the daughter classes will all use Stores
3448
derived from LockableIniFileStore).
3450
It implements set() and remove () by re-loading the store before applying
3451
the modification and saving it.
3453
The long term plan being to implement a single write by store to save
3454
all modifications, this class should not be used in the interim.
3457
def set(self, name, value):
3460
super(_CompatibleStack, self).set(name, value)
3461
# Force a write to persistent storage
3464
def remove(self, name):
3467
super(_CompatibleStack, self).remove(name)
3468
# Force a write to persistent storage
3472
class GlobalStack(_CompatibleStack):
3473
"""Global options only stack."""
3477
gstore = GlobalStore()
3478
super(GlobalStack, self).__init__(
3479
[self._get_overrides, NameMatcher(gstore, 'DEFAULT').get_sections],
3480
gstore, mutable_section_id='DEFAULT')
3483
class LocationStack(_CompatibleStack):
3484
"""Per-location options falling back to global options stack."""
3486
def __init__(self, location):
3487
"""Make a new stack for a location and global configuration.
3489
:param location: A URL prefix to """
3490
lstore = LocationStore()
3491
if location.startswith('file://'):
3492
location = urlutils.local_path_from_url(location)
3493
matcher = LocationMatcher(lstore, location)
3494
gstore = GlobalStore()
3495
super(LocationStack, self).__init__(
3496
[self._get_overrides,
3497
matcher.get_sections, NameMatcher(gstore, 'DEFAULT').get_sections],
3498
lstore, mutable_section_id=location)
3501
class BranchStack(_CompatibleStack):
3502
"""Per-location options falling back to branch then global options stack."""
3504
def __init__(self, branch):
3505
bstore = branch._get_config_store()
3506
lstore = LocationStore()
3507
matcher = LocationMatcher(lstore, branch.base)
3508
gstore = GlobalStore()
3509
super(BranchStack, self).__init__(
3510
[self._get_overrides,
3511
matcher.get_sections, bstore.get_sections,
3512
NameMatcher(gstore, 'DEFAULT').get_sections],
3514
self.branch = branch
3517
class RemoteControlStack(_CompatibleStack):
3518
"""Remote control-only options stack."""
3520
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3521
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3522
# control.conf and is used only for stack options.
3524
def __init__(self, bzrdir):
3525
cstore = bzrdir._get_config_store()
3526
super(RemoteControlStack, self).__init__(
3527
[cstore.get_sections],
3529
self.bzrdir = bzrdir
3532
class RemoteBranchStack(_CompatibleStack):
3533
"""Remote branch-only options stack."""
3535
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3536
# with the stack used for remote branches. RemoteBranchStack only uses
3537
# branch.conf and is used only for the stack options.
3539
def __init__(self, branch):
3540
bstore = branch._get_config_store()
3541
super(RemoteBranchStack, self).__init__(
3542
[bstore.get_sections],
3544
self.branch = branch
3546
# Use a an empty dict to initialize an empty configobj avoiding all
3547
# parsing and encoding checks
3548
_quoting_config = configobj.ConfigObj(
3549
{}, encoding='utf-8', interpolation=False)
3551
class cmd_config(commands.Command):
3552
__doc__ = """Display, set or remove a configuration option.
3554
Display the active value for a given option.
3556
If --all is specified, NAME is interpreted as a regular expression and all
3557
matching options are displayed mentioning their scope. The active value
3558
that bzr will take into account is the first one displayed for each option.
3560
If no NAME is given, --all .* is implied.
3562
Setting a value is achieved by using name=value without spaces. The value
3563
is set in the most relevant scope and can be checked by displaying the
3567
takes_args = ['name?']
3571
# FIXME: This should be a registry option so that plugins can register
3572
# their own config files (or not) and will also address
3573
# http://pad.lv/788991 -- vila 20101115
3574
commands.Option('scope', help='Reduce the scope to the specified'
3575
' configuration file.',
3577
commands.Option('all',
3578
help='Display all the defined values for the matching options.',
3580
commands.Option('remove', help='Remove the option from'
3581
' the configuration file.'),
3584
_see_also = ['configuration']
3586
@commands.display_command
3587
def run(self, name=None, all=False, directory=None, scope=None,
3589
if directory is None:
3591
directory = urlutils.normalize_url(directory)
3593
raise errors.BzrError(
3594
'--all and --remove are mutually exclusive.')
3596
# Delete the option in the given scope
3597
self._remove_config_option(name, directory, scope)
3599
# Defaults to all options
3600
self._show_matching_options('.*', directory, scope)
3603
name, value = name.split('=', 1)
3605
# Display the option(s) value(s)
3607
self._show_matching_options(name, directory, scope)
3609
self._show_value(name, directory, scope)
3612
raise errors.BzrError(
3613
'Only one option can be set.')
3614
# Set the option value
3615
self._set_config_option(name, value, directory, scope)
3617
def _get_stack(self, directory, scope=None):
3618
"""Get the configuration stack specified by ``directory`` and ``scope``.
3620
:param directory: Where the configurations are derived from.
3622
:param scope: A specific config to start from.
3624
# FIXME: scope should allow access to plugin-specific stacks (even
3625
# reduced to the plugin-specific store), related to
3626
# http://pad.lv/788991 -- vila 2011-11-15
3627
if scope is not None:
3628
if scope == 'bazaar':
3629
return GlobalStack()
3630
elif scope == 'locations':
3631
return LocationStack(directory)
3632
elif scope == 'branch':
3634
controldir.ControlDir.open_containing_tree_or_branch(
3636
return br.get_config_stack()
3637
raise errors.NoSuchConfig(scope)
3641
controldir.ControlDir.open_containing_tree_or_branch(
3643
return br.get_config_stack()
3644
except errors.NotBranchError:
3645
return LocationStack(directory)
3647
def _show_value(self, name, directory, scope):
3648
conf = self._get_stack(directory, scope)
3649
value = conf.get(name, expand=True)
3650
if value is not None:
3651
# Quote the value appropriately
3652
value = _quoting_config._quote(value)
3653
self.outf.write('%s\n' % (value,))
3655
raise errors.NoSuchConfigOption(name)
3657
def _show_matching_options(self, name, directory, scope):
3658
name = lazy_regex.lazy_compile(name)
3659
# We want any error in the regexp to be raised *now* so we need to
3660
# avoid the delay introduced by the lazy regexp. But, we still do
3661
# want the nicer errors raised by lazy_regex.
3662
name._compile_and_collapse()
3665
conf = self._get_stack(directory, scope)
3666
for sections in conf.sections_def:
3667
for store, section in sections():
3668
for oname in section.iter_option_names():
3669
if name.search(oname):
3670
if cur_store_id != store.id:
3671
# Explain where the options are defined
3672
self.outf.write('%s:\n' % (store.id,))
3673
cur_store_id = store.id
3675
if (section.id not in (None, 'DEFAULT')
3676
and cur_section != section.id):
3677
# Display the section if it's not the default (or
3679
self.outf.write(' [%s]\n' % (section.id,))
3680
cur_section = section.id
3681
value = section.get(oname, expand=False)
3682
value = _quoting_config._quote(value)
3683
self.outf.write(' %s = %s\n' % (oname, value))
3685
def _set_config_option(self, name, value, directory, scope):
3686
conf = self._get_stack(directory, scope)
3687
conf.set(name, value)
3689
def _remove_config_option(self, name, directory, scope):
3691
raise errors.BzrCommandError(
3692
'--remove expects an option to remove.')
3693
conf = self._get_stack(directory, scope)
3697
raise errors.NoSuchConfigOption(name)
3702
# We need adapters that can build a Store or a Stack in a test context. Test
3703
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3704
# themselves. The builder will receive a test instance and should return a
3705
# ready-to-use store or stack. Plugins that define new store/stacks can also
3706
# register themselves here to be tested against the tests defined in
3707
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3708
# for the same test.
3710
# The registered object should be a callable receiving a test instance
3711
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3713
test_store_builder_registry = registry.Registry()
3715
# The registered object should be a callable receiving a test instance
3716
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3718
test_stack_builder_registry = registry.Registry()