1578
2260
configobj[name] = value
1580
2262
configobj.setdefault(section, {})[name] = value
2263
for hook in OldConfigHooks['set']:
2264
hook(self, name, value)
2265
self._set_configobj(configobj)
2267
def remove_option(self, option_name, section_name=None):
2268
configobj = self._get_configobj()
2269
if section_name is None:
2270
del configobj[option_name]
2272
del configobj[section_name][option_name]
2273
for hook in OldConfigHooks['remove']:
2274
hook(self, option_name)
1581
2275
self._set_configobj(configobj)
1583
2277
def _get_config_file(self):
1585
return StringIO(self._transport.get_bytes(self._filename))
2279
f = StringIO(self._transport.get_bytes(self._filename))
2280
for hook in OldConfigHooks['load']:
1586
2283
except errors.NoSuchFile:
1587
2284
return StringIO()
2285
except errors.PermissionDenied, e:
2286
trace.warning("Permission denied while trying to open "
2287
"configuration file %s.", urlutils.unescape_for_display(
2288
urlutils.join(self._transport.base, self._filename), "utf-8"))
2291
def _external_url(self):
2292
return urlutils.join(self._transport.external_url(), self._filename)
1589
2294
def _get_configobj(self):
1590
2295
f = self._get_config_file()
1592
return ConfigObj(f, encoding='utf-8')
2298
conf = ConfigObj(f, encoding='utf-8')
2299
except configobj.ConfigObjError, e:
2300
raise errors.ParseConfigError(e.errors, self._external_url())
2301
except UnicodeDecodeError:
2302
raise errors.ConfigContentError(self._external_url())
1596
2307
def _set_configobj(self, configobj):
1597
2308
out_file = StringIO()
1598
2309
configobj.write(out_file)
1599
2310
out_file.seek(0)
1600
2311
self._transport.put_file(self._filename, out_file)
2312
for hook in OldConfigHooks['save']:
2316
class Option(object):
2317
"""An option definition.
2319
The option *values* are stored in config files and found in sections.
2321
Here we define various properties about the option itself, its default
2322
value, how to convert it from stores, what to do when invalid values are
2323
encoutered, in which config files it can be stored.
2326
def __init__(self, name, default=None, default_from_env=None,
2327
help=None, from_unicode=None, invalid=None):
2328
"""Build an option definition.
2330
:param name: the name used to refer to the option.
2332
:param default: the default value to use when none exist in the config
2333
stores. This is either a string that ``from_unicode`` will convert
2334
into the proper type, a callable returning a unicode string so that
2335
``from_unicode`` can be used on the return value, or a python
2336
object that can be stringified (so only the empty list is supported
2339
:param default_from_env: A list of environment variables which can
2340
provide a default value. 'default' will be used only if none of the
2341
variables specified here are set in the environment.
2343
:param help: a doc string to explain the option to the user.
2345
:param from_unicode: a callable to convert the unicode string
2346
representing the option value in a store. This is not called for
2349
:param invalid: the action to be taken when an invalid value is
2350
encountered in a store. This is called only when from_unicode is
2351
invoked to convert a string and returns None or raise ValueError or
2352
TypeError. Accepted values are: None (ignore invalid values),
2353
'warning' (emit a warning), 'error' (emit an error message and
2356
if default_from_env is None:
2357
default_from_env = []
2359
# Convert the default value to a unicode string so all values are
2360
# strings internally before conversion (via from_unicode) is attempted.
2363
elif isinstance(default, list):
2364
# Only the empty list is supported
2366
raise AssertionError(
2367
'Only empty lists are supported as default values')
2369
elif isinstance(default, (str, unicode, bool, int, float)):
2370
# Rely on python to convert strings, booleans and integers
2371
self.default = u'%s' % (default,)
2372
elif callable(default):
2373
self.default = default
2375
# other python objects are not expected
2376
raise AssertionError('%r is not supported as a default value'
2378
self.default_from_env = default_from_env
2380
self.from_unicode = from_unicode
2381
if invalid and invalid not in ('warning', 'error'):
2382
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2383
self.invalid = invalid
2385
def convert_from_unicode(self, unicode_value):
2386
if self.from_unicode is None or unicode_value is None:
2387
# Don't convert or nothing to convert
2388
return unicode_value
2390
converted = self.from_unicode(unicode_value)
2391
except (ValueError, TypeError):
2392
# Invalid values are ignored
2394
if converted is None and self.invalid is not None:
2395
# The conversion failed
2396
if self.invalid == 'warning':
2397
trace.warning('Value "%s" is not valid for "%s"',
2398
unicode_value, self.name)
2399
elif self.invalid == 'error':
2400
raise errors.ConfigOptionValueError(self.name, unicode_value)
2403
def get_default(self):
2405
for var in self.default_from_env:
2407
# If the env variable is defined, its value is the default one
2408
value = os.environ[var].decode(osutils.get_user_encoding())
2413
# Otherwise, fallback to the value defined at registration
2414
if callable(self.default):
2415
value = self.default()
2416
if not isinstance(value, unicode):
2417
raise AssertionError(
2418
'Callable default values should be unicode')
2420
value = self.default
2423
def get_help_text(self, additional_see_also=None, plain=True):
2425
from bzrlib import help_topics
2426
result += help_topics._format_see_also(additional_see_also)
2428
result = help_topics.help_as_plain_text(result)
2432
# Predefined converters to get proper values from store
2434
def bool_from_store(unicode_str):
2435
return ui.bool_from_string(unicode_str)
2438
def int_from_store(unicode_str):
2439
return int(unicode_str)
2442
def float_from_store(unicode_str):
2443
return float(unicode_str)
2447
# Use a an empty dict to initialize an empty configobj avoiding all
2448
# parsing and encoding checks
2449
_list_converter_config = configobj.ConfigObj(
2450
{}, encoding='utf-8', list_values=True, interpolation=False)
2453
def list_from_store(unicode_str):
2454
if not isinstance(unicode_str, basestring):
2456
# Now inject our string directly as unicode. All callers got their value
2457
# from configobj, so values that need to be quoted are already properly
2459
_list_converter_config.reset()
2460
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2461
maybe_list = _list_converter_config['list']
2462
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2463
if isinstance(maybe_list, basestring):
2465
# A single value, most probably the user forgot (or didn't care to
2466
# add) the final ','
2469
# The empty string, convert to empty list
2472
# We rely on ConfigObj providing us with a list already
2477
class OptionRegistry(registry.Registry):
2478
"""Register config options by their name.
2480
This overrides ``registry.Registry`` to simplify registration by acquiring
2481
some information from the option object itself.
2484
def register(self, option):
2485
"""Register a new option to its name.
2487
:param option: The option to register. Its name is used as the key.
2489
super(OptionRegistry, self).register(option.name, option,
2492
def register_lazy(self, key, module_name, member_name):
2493
"""Register a new option to be loaded on request.
2495
:param key: the key to request the option later. Since the registration
2496
is lazy, it should be provided and match the option name.
2498
:param module_name: the python path to the module. Such as 'os.path'.
2500
:param member_name: the member of the module to return. If empty or
2501
None, get() will return the module itself.
2503
super(OptionRegistry, self).register_lazy(key,
2504
module_name, member_name)
2506
def get_help(self, key=None):
2507
"""Get the help text associated with the given key"""
2508
option = self.get(key)
2509
the_help = option.help
2510
if callable(the_help):
2511
return the_help(self, key)
2515
option_registry = OptionRegistry()
2518
# Registered options in lexicographical order
2520
option_registry.register(
2521
Option('acceptable_keys',
2522
default=None, from_unicode=list_from_store,
2524
List of GPG key patterns which are acceptable for verification.
2526
option_registry.register(
2527
Option('bzr.workingtree.worth_saving_limit', default=10,
2528
from_unicode=int_from_store, invalid='warning',
2530
How many changes before saving the dirstate.
2532
-1 means that we will never rewrite the dirstate file for only
2533
stat-cache changes. Regardless of this setting, we will always rewrite
2534
the dirstate file if a file is added/removed/renamed/etc. This flag only
2535
affects the behavior of updating the dirstate file after we notice that
2536
a file has been touched.
2538
option_registry.register(
2539
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2540
from_unicode=signature_policy_from_unicode,
2542
GPG checking policy.
2544
Possible values: require, ignore, check-available (default)
2546
this option will control whether bzr will require good gpg
2547
signatures, ignore them, or check them if they are
2550
option_registry.register(
2551
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2552
from_unicode=signing_policy_from_unicode,
2556
Possible values: always, never, when-required (default)
2558
This option controls whether bzr will always create
2559
gpg signatures or not on commits.
2561
option_registry.register(
2562
Option('dirstate.fdatasync', default=True,
2563
from_unicode=bool_from_store,
2565
Flush dirstate changes onto physical disk?
2567
If true (default), working tree metadata changes are flushed through the
2568
OS buffers to physical disk. This is somewhat slower, but means data
2569
should not be lost if the machine crashes. See also repository.fdatasync.
2571
option_registry.register(
2572
Option('debug_flags', default=[], from_unicode=list_from_store,
2573
help='Debug flags to activate.'))
2574
option_registry.register(
2575
Option('default_format', default='2a',
2576
help='Format used when creating branches.'))
2577
option_registry.register(
2578
Option('dpush_strict', default=None,
2579
from_unicode=bool_from_store,
2581
The default value for ``dpush --strict``.
2583
If present, defines the ``--strict`` option default value for checking
2584
uncommitted changes before pushing into a different VCS without any
2585
custom bzr metadata.
2587
option_registry.register(
2589
help='The command called to launch an editor to enter a message.'))
2592
def default_email():
2593
name, email = _auto_user_id()
2595
return u'%s <%s>' % (name, email)
2598
raise errors.NoWhoami()
2601
option_registry.register(
2602
Option('email', default=default_email,
2603
default_from_env=['BZR_EMAIL', 'EMAIL'],
2604
help='The users identity'))
2605
option_registry.register(
2606
Option('gpg_signing_command',
2609
Program to use use for creating signatures.
2611
This should support at least the -u and --clearsign options.
2613
option_registry.register(
2614
Option('gpg_signing_key',
2617
GPG key to use for signing.
2619
This defaults to the first key associated with the users email.
2621
option_registry.register(
2622
Option('ignore_missing_extensions', default=False,
2623
from_unicode=bool_from_store,
2625
Control the missing extensions warning display.
2627
The warning will not be emitted if set to True.
2629
option_registry.register(
2631
help='Language to translate messages into.'))
2632
option_registry.register(
2633
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2635
Steal locks that appears to be dead.
2637
If set to True, bzr will check if a lock is supposed to be held by an
2638
active process from the same user on the same machine. If the user and
2639
machine match, but no process with the given PID is active, then bzr
2640
will automatically break the stale lock, and create a new lock for
2642
Otherwise, bzr will prompt as normal to break the lock.
2644
option_registry.register(
2645
Option('log_format', default='long',
2647
Log format to use when displaying revisions.
2649
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2650
may be provided by plugins.
2652
option_registry.register(
2653
Option('output_encoding',
2654
help= 'Unicode encoding for output'
2655
' (terminal encoding if not specified).'))
2656
option_registry.register(
2657
Option('post_commit', default=None,
2658
from_unicode=list_from_store,
2660
Post commit functions.
2662
An ordered list of python functions to call.
2664
Each function takes branch, rev_id as parameters.
2666
option_registry.register(
2667
Option('push_strict', default=None,
2668
from_unicode=bool_from_store,
2670
The default value for ``push --strict``.
2672
If present, defines the ``--strict`` option default value for checking
2673
uncommitted changes before sending a merge directive.
2675
option_registry.register(
2676
Option('repository.fdatasync', default=True,
2677
from_unicode=bool_from_store,
2679
Flush repository changes onto physical disk?
2681
If true (default), repository changes are flushed through the OS buffers
2682
to physical disk. This is somewhat slower, but means data should not be
2683
lost if the machine crashes. See also dirstate.fdatasync.
2686
option_registry.register(
2687
Option('selftest.timeout',
2689
from_unicode=int_from_store,
2690
help='Abort selftest if one test takes longer than this many seconds',
2693
option_registry.register(
2694
Option('send_strict', default=None,
2695
from_unicode=bool_from_store,
2697
The default value for ``send --strict``.
2699
If present, defines the ``--strict`` option default value for checking
2700
uncommitted changes before pushing.
2703
option_registry.register(
2704
Option('serve.client_timeout',
2705
default=300.0, from_unicode=float_from_store,
2706
help="If we wait for a new request from a client for more than"
2707
" X seconds, consider the client idle, and hangup."))
2710
class Section(object):
2711
"""A section defines a dict of option name => value.
2713
This is merely a read-only dict which can add some knowledge about the
2714
options. It is *not* a python dict object though and doesn't try to mimic
2718
def __init__(self, section_id, options):
2719
self.id = section_id
2720
# We re-use the dict-like object received
2721
self.options = options
2723
def get(self, name, default=None, expand=True):
2724
return self.options.get(name, default)
2726
def iter_option_names(self):
2727
for k in self.options.iterkeys():
2731
# Mostly for debugging use
2732
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2735
_NewlyCreatedOption = object()
2736
"""Was the option created during the MutableSection lifetime"""
2739
class MutableSection(Section):
2740
"""A section allowing changes and keeping track of the original values."""
2742
def __init__(self, section_id, options):
2743
super(MutableSection, self).__init__(section_id, options)
2746
def set(self, name, value):
2747
if name not in self.options:
2748
# This is a new option
2749
self.orig[name] = _NewlyCreatedOption
2750
elif name not in self.orig:
2751
self.orig[name] = self.get(name, None)
2752
self.options[name] = value
2754
def remove(self, name):
2755
if name not in self.orig:
2756
self.orig[name] = self.get(name, None)
2757
del self.options[name]
2760
class Store(object):
2761
"""Abstract interface to persistent storage for configuration options."""
2763
readonly_section_class = Section
2764
mutable_section_class = MutableSection
2766
def is_loaded(self):
2767
"""Returns True if the Store has been loaded.
2769
This is used to implement lazy loading and ensure the persistent
2770
storage is queried only when needed.
2772
raise NotImplementedError(self.is_loaded)
2775
"""Loads the Store from persistent storage."""
2776
raise NotImplementedError(self.load)
2778
def _load_from_string(self, bytes):
2779
"""Create a store from a string in configobj syntax.
2781
:param bytes: A string representing the file content.
2783
raise NotImplementedError(self._load_from_string)
2786
"""Unloads the Store.
2788
This should make is_loaded() return False. This is used when the caller
2789
knows that the persistent storage has changed or may have change since
2792
raise NotImplementedError(self.unload)
2795
"""Saves the Store to persistent storage."""
2796
raise NotImplementedError(self.save)
2798
def external_url(self):
2799
raise NotImplementedError(self.external_url)
2801
def get_sections(self):
2802
"""Returns an ordered iterable of existing sections.
2804
:returns: An iterable of (store, section).
2806
raise NotImplementedError(self.get_sections)
2808
def get_mutable_section(self, section_id=None):
2809
"""Returns the specified mutable section.
2811
:param section_id: The section identifier
2813
raise NotImplementedError(self.get_mutable_section)
2816
# Mostly for debugging use
2817
return "<config.%s(%s)>" % (self.__class__.__name__,
2818
self.external_url())
2821
class CommandLineStore(Store):
2822
"A store to carry command line overrides for the config options."""
2824
def __init__(self, opts=None):
2825
super(CommandLineStore, self).__init__()
2831
# The dict should be cleared but not replaced so it can be shared.
2832
self.options.clear()
2834
def _from_cmdline(self, overrides):
2835
# Reset before accepting new definitions
2837
for over in overrides:
2839
name, value = over.split('=', 1)
2841
raise errors.BzrCommandError(
2842
gettext("Invalid '%s', should be of the form 'name=value'")
2844
self.options[name] = value
2846
def external_url(self):
2847
# Not an url but it makes debugging easier and is never needed
2851
def get_sections(self):
2852
yield self, self.readonly_section_class('cmdline_overrides',
2856
class IniFileStore(Store):
2857
"""A config Store using ConfigObj for storage.
2859
:ivar transport: The transport object where the config file is located.
2861
:ivar file_name: The config file basename in the transport directory.
2863
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2864
serialize/deserialize the config file.
2868
"""A config Store using ConfigObj for storage.
2870
super(IniFileStore, self).__init__()
2871
self._config_obj = None
2873
def is_loaded(self):
2874
return self._config_obj != None
2877
self._config_obj = None
2879
def _load_content(self):
2880
"""Load the config file bytes.
2882
This should be provided by subclasses
2884
:return: Byte string
2886
raise NotImplementedError(self._load_content)
2888
def _save_content(self, content):
2889
"""Save the config file bytes.
2891
This should be provided by subclasses
2893
:param content: Config file bytes to write
2895
raise NotImplementedError(self._save_content)
2898
"""Load the store from the associated file."""
2899
if self.is_loaded():
2901
content = self._load_content()
2902
self._load_from_string(content)
2903
for hook in ConfigHooks['load']:
2906
def _load_from_string(self, bytes):
2907
"""Create a config store from a string.
2909
:param bytes: A string representing the file content.
2911
if self.is_loaded():
2912
raise AssertionError('Already loaded: %r' % (self._config_obj,))
2913
co_input = StringIO(bytes)
2915
# The config files are always stored utf8-encoded
2916
self._config_obj = ConfigObj(co_input, encoding='utf-8',
2918
except configobj.ConfigObjError, e:
2919
self._config_obj = None
2920
raise errors.ParseConfigError(e.errors, self.external_url())
2921
except UnicodeDecodeError:
2922
raise errors.ConfigContentError(self.external_url())
2925
if not self.is_loaded():
2929
self._config_obj.write(out)
2930
self._save_content(out.getvalue())
2931
for hook in ConfigHooks['save']:
2934
def get_sections(self):
2935
"""Get the configobj section in the file order.
2937
:returns: An iterable of (store, section).
2939
# We need a loaded store
2942
except (errors.NoSuchFile, errors.PermissionDenied):
2943
# If the file can't be read, there is no sections
2945
cobj = self._config_obj
2947
yield self, self.readonly_section_class(None, cobj)
2948
for section_name in cobj.sections:
2950
self.readonly_section_class(section_name,
2951
cobj[section_name]))
2953
def get_mutable_section(self, section_id=None):
2954
# We need a loaded store
2957
except errors.NoSuchFile:
2958
# The file doesn't exist, let's pretend it was empty
2959
self._load_from_string('')
2960
if section_id is None:
2961
section = self._config_obj
2963
section = self._config_obj.setdefault(section_id, {})
2964
return self.mutable_section_class(section_id, section)
2967
class TransportIniFileStore(IniFileStore):
2968
"""IniFileStore that loads files from a transport.
2971
def __init__(self, transport, file_name):
2972
"""A Store using a ini file on a Transport
2974
:param transport: The transport object where the config file is located.
2975
:param file_name: The config file basename in the transport directory.
2977
super(TransportIniFileStore, self).__init__()
2978
self.transport = transport
2979
self.file_name = file_name
2981
def _load_content(self):
2983
return self.transport.get_bytes(self.file_name)
2984
except errors.PermissionDenied:
2985
trace.warning("Permission denied while trying to load "
2986
"configuration store %s.", self.external_url())
2989
def _save_content(self, content):
2990
self.transport.put_bytes(self.file_name, content)
2992
def external_url(self):
2993
# FIXME: external_url should really accepts an optional relpath
2994
# parameter (bug #750169) :-/ -- vila 2011-04-04
2995
# The following will do in the interim but maybe we don't want to
2996
# expose a path here but rather a config ID and its associated
2997
# object </hand wawe>.
2998
return urlutils.join(self.transport.external_url(), self.file_name)
3001
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3002
# unlockable stores for use with objects that can already ensure the locking
3003
# (think branches). If different stores (not based on ConfigObj) are created,
3004
# they may face the same issue.
3007
class LockableIniFileStore(TransportIniFileStore):
3008
"""A ConfigObjStore using locks on save to ensure store integrity."""
3010
def __init__(self, transport, file_name, lock_dir_name=None):
3011
"""A config Store using ConfigObj for storage.
3013
:param transport: The transport object where the config file is located.
3015
:param file_name: The config file basename in the transport directory.
3017
if lock_dir_name is None:
3018
lock_dir_name = 'lock'
3019
self.lock_dir_name = lock_dir_name
3020
super(LockableIniFileStore, self).__init__(transport, file_name)
3021
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3023
def lock_write(self, token=None):
3024
"""Takes a write lock in the directory containing the config file.
3026
If the directory doesn't exist it is created.
3028
# FIXME: This doesn't check the ownership of the created directories as
3029
# ensure_config_dir_exists does. It should if the transport is local
3030
# -- vila 2011-04-06
3031
self.transport.create_prefix()
3032
return self._lock.lock_write(token)
3037
def break_lock(self):
3038
self._lock.break_lock()
3042
# We need to be able to override the undecorated implementation
3043
self.save_without_locking()
3045
def save_without_locking(self):
3046
super(LockableIniFileStore, self).save()
3049
# FIXME: global, bazaar, shouldn't that be 'user' instead or even
3050
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3051
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3053
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3054
# functions or a registry will make it easier and clearer for tests, focusing
3055
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3056
# on a poolie's remark)
3057
class GlobalStore(LockableIniFileStore):
3059
def __init__(self, possible_transports=None):
3060
t = transport.get_transport_from_path(
3061
config_dir(), possible_transports=possible_transports)
3062
super(GlobalStore, self).__init__(t, 'bazaar.conf')
3066
class LocationStore(LockableIniFileStore):
3068
def __init__(self, possible_transports=None):
3069
t = transport.get_transport_from_path(
3070
config_dir(), possible_transports=possible_transports)
3071
super(LocationStore, self).__init__(t, 'locations.conf')
3072
self.id = 'locations'
3075
class BranchStore(TransportIniFileStore):
3077
def __init__(self, branch):
3078
super(BranchStore, self).__init__(branch.control_transport,
3080
self.branch = branch
3083
def lock_write(self, token=None):
3084
return self.branch.lock_write(token)
3087
return self.branch.unlock()
3091
# We need to be able to override the undecorated implementation
3092
self.save_without_locking()
3094
def save_without_locking(self):
3095
super(BranchStore, self).save()
3098
class ControlStore(LockableIniFileStore):
3100
def __init__(self, bzrdir):
3101
super(ControlStore, self).__init__(bzrdir.transport,
3103
lock_dir_name='branch_lock')
3106
class SectionMatcher(object):
3107
"""Select sections into a given Store.
3109
This is intended to be used to postpone getting an iterable of sections
3113
def __init__(self, store):
3116
def get_sections(self):
3117
# This is where we require loading the store so we can see all defined
3119
sections = self.store.get_sections()
3120
# Walk the revisions in the order provided
3121
for store, s in sections:
3125
def match(self, section):
3126
"""Does the proposed section match.
3128
:param section: A Section object.
3130
:returns: True if the section matches, False otherwise.
3132
raise NotImplementedError(self.match)
3135
class NameMatcher(SectionMatcher):
3137
def __init__(self, store, section_id):
3138
super(NameMatcher, self).__init__(store)
3139
self.section_id = section_id
3141
def match(self, section):
3142
return section.id == self.section_id
3145
class LocationSection(Section):
3147
def __init__(self, section, length, extra_path):
3148
super(LocationSection, self).__init__(section.id, section.options)
3149
self.length = length
3150
self.extra_path = extra_path
3151
self.locals = {'relpath': extra_path,
3152
'basename': urlutils.basename(extra_path)}
3154
def get(self, name, default=None, expand=True):
3155
value = super(LocationSection, self).get(name, default)
3156
if value is not None and expand:
3157
policy_name = self.get(name + ':policy', None)
3158
policy = _policy_value.get(policy_name, POLICY_NONE)
3159
if policy == POLICY_APPENDPATH:
3160
value = urlutils.join(value, self.extra_path)
3161
# expand section local options right now (since POLICY_APPENDPATH
3162
# will never add options references, it's ok to expand after it).
3164
for is_ref, chunk in iter_option_refs(value):
3166
chunks.append(chunk)
3169
if ref in self.locals:
3170
chunks.append(self.locals[ref])
3172
chunks.append(chunk)
3173
value = ''.join(chunks)
3177
class LocationMatcher(SectionMatcher):
3179
def __init__(self, store, location):
3180
super(LocationMatcher, self).__init__(store)
3181
if location.startswith('file://'):
3182
location = urlutils.local_path_from_url(location)
3183
self.location = location
3185
def _get_matching_sections(self):
3186
"""Get all sections matching ``location``."""
3187
# We slightly diverge from LocalConfig here by allowing the no-name
3188
# section as the most generic one and the lower priority.
3189
no_name_section = None
3191
# Filter out the no_name_section so _iter_for_location_by_parts can be
3192
# used (it assumes all sections have a name).
3193
for _, section in self.store.get_sections():
3194
if section.id is None:
3195
no_name_section = section
3197
all_sections.append(section)
3198
# Unfortunately _iter_for_location_by_parts deals with section names so
3199
# we have to resync.
3200
filtered_sections = _iter_for_location_by_parts(
3201
[s.id for s in all_sections], self.location)
3202
iter_all_sections = iter(all_sections)
3203
matching_sections = []
3204
if no_name_section is not None:
3205
matching_sections.append(
3206
LocationSection(no_name_section, 0, self.location))
3207
for section_id, extra_path, length in filtered_sections:
3208
# a section id is unique for a given store so it's safe to take the
3209
# first matching section while iterating. Also, all filtered
3210
# sections are part of 'all_sections' and will always be found
3213
section = iter_all_sections.next()
3214
if section_id == section.id:
3215
matching_sections.append(
3216
LocationSection(section, length, extra_path))
3218
return matching_sections
3220
def get_sections(self):
3221
# Override the default implementation as we want to change the order
3222
matching_sections = self._get_matching_sections()
3223
# We want the longest (aka more specific) locations first
3224
sections = sorted(matching_sections,
3225
key=lambda section: (section.length, section.id),
3227
# Sections mentioning 'ignore_parents' restrict the selection
3228
for section in sections:
3229
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3230
ignore = section.get('ignore_parents', None)
3231
if ignore is not None:
3232
ignore = ui.bool_from_string(ignore)
3235
# Finally, we have a valid section
3236
yield self.store, section
3239
_option_ref_re = lazy_regex.lazy_compile('({[^{}\n]+})')
3240
"""Describes an expandable option reference.
3242
We want to match the most embedded reference first.
3244
I.e. for '{{foo}}' we will get '{foo}',
3245
for '{bar{baz}}' we will get '{baz}'
3248
def iter_option_refs(string):
3249
# Split isolate refs so every other chunk is a ref
3251
for chunk in _option_ref_re.split(string):
3256
class Stack(object):
3257
"""A stack of configurations where an option can be defined"""
3259
def __init__(self, sections_def, store=None, mutable_section_id=None):
3260
"""Creates a stack of sections with an optional store for changes.
3262
:param sections_def: A list of Section or callables that returns an
3263
iterable of Section. This defines the Sections for the Stack and
3264
can be called repeatedly if needed.
3266
:param store: The optional Store where modifications will be
3267
recorded. If none is specified, no modifications can be done.
3269
:param mutable_section_id: The id of the MutableSection where changes
3270
are recorded. This requires the ``store`` parameter to be
3273
self.sections_def = sections_def
3275
self.mutable_section_id = mutable_section_id
3277
def get(self, name, expand=None):
3278
"""Return the *first* option value found in the sections.
3280
This is where we guarantee that sections coming from Store are loaded
3281
lazily: the loading is delayed until we need to either check that an
3282
option exists or get its value, which in turn may require to discover
3283
in which sections it can be defined. Both of these (section and option
3284
existence) require loading the store (even partially).
3286
:param name: The queried option.
3288
:param expand: Whether options references should be expanded.
3290
:returns: The value of the option.
3292
# FIXME: No caching of options nor sections yet -- vila 20110503
3294
expand = _get_expand_default_value()
3296
# Ensuring lazy loading is achieved by delaying section matching (which
3297
# implies querying the persistent storage) until it can't be avoided
3298
# anymore by using callables to describe (possibly empty) section
3300
for sections in self.sections_def:
3301
for store, section in sections():
3302
value = section.get(name)
3303
if value is not None:
3305
if value is not None:
3307
# If the option is registered, it may provide additional info about
3310
opt = option_registry.get(name)
3314
def expand_and_convert(val):
3315
# This may need to be called twice if the value is None or ends up
3316
# being None during expansion or conversion.
3319
if isinstance(val, basestring):
3320
val = self._expand_options_in_string(val)
3322
trace.warning('Cannot expand "%s":'
3323
' %s does not support option expansion'
3324
% (name, type(val)))
3326
val = opt.convert_from_unicode(val)
3328
value = expand_and_convert(value)
3329
if opt is not None and value is None:
3330
# If the option is registered, it may provide a default value
3331
value = opt.get_default()
3332
value = expand_and_convert(value)
3333
for hook in ConfigHooks['get']:
3334
hook(self, name, value)
3337
def expand_options(self, string, env=None):
3338
"""Expand option references in the string in the configuration context.
3340
:param string: The string containing option(s) to expand.
3342
:param env: An option dict defining additional configuration options or
3343
overriding existing ones.
3345
:returns: The expanded string.
3347
return self._expand_options_in_string(string, env)
3349
def _expand_options_in_string(self, string, env=None, _refs=None):
3350
"""Expand options in the string in the configuration context.
3352
:param string: The string to be expanded.
3354
:param env: An option dict defining additional configuration options or
3355
overriding existing ones.
3357
:param _refs: Private list (FIFO) containing the options being expanded
3360
:returns: The expanded string.
3363
# Not much to expand there
3366
# What references are currently resolved (to detect loops)
3369
# We need to iterate until no more refs appear ({{foo}} will need two
3370
# iterations for example).
3375
for is_ref, chunk in iter_option_refs(result):
3377
chunks.append(chunk)
3382
raise errors.OptionExpansionLoop(string, _refs)
3384
value = self._expand_option(name, env, _refs)
3386
raise errors.ExpandingUnknownOption(name, string)
3387
chunks.append(value)
3389
result = ''.join(chunks)
3392
def _expand_option(self, name, env, _refs):
3393
if env is not None and name in env:
3394
# Special case, values provided in env takes precedence over
3398
value = self.get(name, expand=False)
3399
value = self._expand_options_in_string(value, env, _refs)
3402
def _get_mutable_section(self):
3403
"""Get the MutableSection for the Stack.
3405
This is where we guarantee that the mutable section is lazily loaded:
3406
this means we won't load the corresponding store before setting a value
3407
or deleting an option. In practice the store will often be loaded but
3408
this helps catching some programming errors.
3410
section = self.store.get_mutable_section(self.mutable_section_id)
3413
def set(self, name, value):
3414
"""Set a new value for the option."""
3415
section = self._get_mutable_section()
3416
section.set(name, value)
3417
for hook in ConfigHooks['set']:
3418
hook(self, name, value)
3420
def remove(self, name):
3421
"""Remove an existing option."""
3422
section = self._get_mutable_section()
3423
section.remove(name)
3424
for hook in ConfigHooks['remove']:
3428
# Mostly for debugging use
3429
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3431
def _get_overrides(self):
3432
# Hack around library_state.initialize never called
3433
if bzrlib.global_state is not None:
3434
return bzrlib.global_state.cmdline_overrides.get_sections()
3438
class _CompatibleStack(Stack):
3439
"""Place holder for compatibility with previous design.
3441
This is intended to ease the transition from the Config-based design to the
3442
Stack-based design and should not be used nor relied upon by plugins.
3444
One assumption made here is that the daughter classes will all use Stores
3445
derived from LockableIniFileStore).
3447
It implements set() and remove () by re-loading the store before applying
3448
the modification and saving it.
3450
The long term plan being to implement a single write by store to save
3451
all modifications, this class should not be used in the interim.
3454
def set(self, name, value):
3457
super(_CompatibleStack, self).set(name, value)
3458
# Force a write to persistent storage
3461
def remove(self, name):
3464
super(_CompatibleStack, self).remove(name)
3465
# Force a write to persistent storage
3469
class GlobalStack(_CompatibleStack):
3470
"""Global options only stack."""
3474
gstore = GlobalStore()
3475
super(GlobalStack, self).__init__(
3476
[self._get_overrides, NameMatcher(gstore, 'DEFAULT').get_sections],
3477
gstore, mutable_section_id='DEFAULT')
3480
class LocationStack(_CompatibleStack):
3481
"""Per-location options falling back to global options stack."""
3483
def __init__(self, location):
3484
"""Make a new stack for a location and global configuration.
3486
:param location: A URL prefix to """
3487
lstore = LocationStore()
3488
if location.startswith('file://'):
3489
location = urlutils.local_path_from_url(location)
3490
matcher = LocationMatcher(lstore, location)
3491
gstore = GlobalStore()
3492
super(LocationStack, self).__init__(
3493
[self._get_overrides,
3494
matcher.get_sections, NameMatcher(gstore, 'DEFAULT').get_sections],
3495
lstore, mutable_section_id=location)
3498
class BranchStack(_CompatibleStack):
3499
"""Per-location options falling back to branch then global options stack."""
3501
def __init__(self, branch):
3502
bstore = branch._get_config_store()
3503
lstore = LocationStore()
3504
matcher = LocationMatcher(lstore, branch.base)
3505
gstore = GlobalStore()
3506
super(BranchStack, self).__init__(
3507
[self._get_overrides,
3508
matcher.get_sections, bstore.get_sections,
3509
NameMatcher(gstore, 'DEFAULT').get_sections],
3511
self.branch = branch
3514
class RemoteControlStack(_CompatibleStack):
3515
"""Remote control-only options stack."""
3517
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3518
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3519
# control.conf and is used only for stack options.
3521
def __init__(self, bzrdir):
3522
cstore = bzrdir._get_config_store()
3523
super(RemoteControlStack, self).__init__(
3524
[cstore.get_sections],
3526
self.bzrdir = bzrdir
3529
class RemoteBranchStack(_CompatibleStack):
3530
"""Remote branch-only options stack."""
3532
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3533
# with the stack used for remote branches. RemoteBranchStack only uses
3534
# branch.conf and is used only for the stack options.
3536
def __init__(self, branch):
3537
bstore = branch._get_config_store()
3538
super(RemoteBranchStack, self).__init__(
3539
[bstore.get_sections],
3541
self.branch = branch
3543
# Use a an empty dict to initialize an empty configobj avoiding all
3544
# parsing and encoding checks
3545
_quoting_config = configobj.ConfigObj(
3546
{}, encoding='utf-8', interpolation=False)
3548
class cmd_config(commands.Command):
3549
__doc__ = """Display, set or remove a configuration option.
3551
Display the active value for a given option.
3553
If --all is specified, NAME is interpreted as a regular expression and all
3554
matching options are displayed mentioning their scope. The active value
3555
that bzr will take into account is the first one displayed for each option.
3557
If no NAME is given, --all .* is implied.
3559
Setting a value is achieved by using name=value without spaces. The value
3560
is set in the most relevant scope and can be checked by displaying the
3564
takes_args = ['name?']
3568
# FIXME: This should be a registry option so that plugins can register
3569
# their own config files (or not) and will also address
3570
# http://pad.lv/788991 -- vila 20101115
3571
commands.Option('scope', help='Reduce the scope to the specified'
3572
' configuration file.',
3574
commands.Option('all',
3575
help='Display all the defined values for the matching options.',
3577
commands.Option('remove', help='Remove the option from'
3578
' the configuration file.'),
3581
_see_also = ['configuration']
3583
@commands.display_command
3584
def run(self, name=None, all=False, directory=None, scope=None,
3586
if directory is None:
3588
directory = urlutils.normalize_url(directory)
3590
raise errors.BzrError(
3591
'--all and --remove are mutually exclusive.')
3593
# Delete the option in the given scope
3594
self._remove_config_option(name, directory, scope)
3596
# Defaults to all options
3597
self._show_matching_options('.*', directory, scope)
3600
name, value = name.split('=', 1)
3602
# Display the option(s) value(s)
3604
self._show_matching_options(name, directory, scope)
3606
self._show_value(name, directory, scope)
3609
raise errors.BzrError(
3610
'Only one option can be set.')
3611
# Set the option value
3612
self._set_config_option(name, value, directory, scope)
3614
def _get_stack(self, directory, scope=None):
3615
"""Get the configuration stack specified by ``directory`` and ``scope``.
3617
:param directory: Where the configurations are derived from.
3619
:param scope: A specific config to start from.
3621
# FIXME: scope should allow access to plugin-specific stacks (even
3622
# reduced to the plugin-specific store), related to
3623
# http://pad.lv/788991 -- vila 2011-11-15
3624
if scope is not None:
3625
if scope == 'bazaar':
3626
return GlobalStack()
3627
elif scope == 'locations':
3628
return LocationStack(directory)
3629
elif scope == 'branch':
3631
controldir.ControlDir.open_containing_tree_or_branch(
3633
return br.get_config_stack()
3634
raise errors.NoSuchConfig(scope)
3638
controldir.ControlDir.open_containing_tree_or_branch(
3640
return br.get_config_stack()
3641
except errors.NotBranchError:
3642
return LocationStack(directory)
3644
def _show_value(self, name, directory, scope):
3645
conf = self._get_stack(directory, scope)
3646
value = conf.get(name, expand=True)
3647
if value is not None:
3648
# Quote the value appropriately
3649
value = _quoting_config._quote(value)
3650
self.outf.write('%s\n' % (value,))
3652
raise errors.NoSuchConfigOption(name)
3654
def _show_matching_options(self, name, directory, scope):
3655
name = lazy_regex.lazy_compile(name)
3656
# We want any error in the regexp to be raised *now* so we need to
3657
# avoid the delay introduced by the lazy regexp. But, we still do
3658
# want the nicer errors raised by lazy_regex.
3659
name._compile_and_collapse()
3662
conf = self._get_stack(directory, scope)
3663
for sections in conf.sections_def:
3664
for store, section in sections():
3665
for oname in section.iter_option_names():
3666
if name.search(oname):
3667
if cur_store_id != store.id:
3668
# Explain where the options are defined
3669
self.outf.write('%s:\n' % (store.id,))
3670
cur_store_id = store.id
3672
if (section.id not in (None, 'DEFAULT')
3673
and cur_section != section.id):
3674
# Display the section if it's not the default (or
3676
self.outf.write(' [%s]\n' % (section.id,))
3677
cur_section = section.id
3678
value = section.get(oname, expand=False)
3679
value = _quoting_config._quote(value)
3680
self.outf.write(' %s = %s\n' % (oname, value))
3682
def _set_config_option(self, name, value, directory, scope):
3683
conf = self._get_stack(directory, scope)
3684
conf.set(name, value)
3686
def _remove_config_option(self, name, directory, scope):
3688
raise errors.BzrCommandError(
3689
'--remove expects an option to remove.')
3690
conf = self._get_stack(directory, scope)
3694
raise errors.NoSuchConfigOption(name)
3699
# We need adapters that can build a Store or a Stack in a test context. Test
3700
# classes, based on TestCaseWithTransport, can use the registry to parametrize
3701
# themselves. The builder will receive a test instance and should return a
3702
# ready-to-use store or stack. Plugins that define new store/stacks can also
3703
# register themselves here to be tested against the tests defined in
3704
# bzrlib.tests.test_config. Note that the builder can be called multiple times
3705
# for the same test.
3707
# The registered object should be a callable receiving a test instance
3708
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
3710
test_store_builder_registry = registry.Registry()
3712
# The registered object should be a callable receiving a test instance
3713
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
3715
test_stack_builder_registry = registry.Registry()