2009
1508
configobj[name] = value
2011
1510
configobj.setdefault(section, {})[name] = value
2012
for hook in OldConfigHooks['set']:
2013
hook(self, name, value)
2014
self._set_configobj(configobj)
2016
def remove_option(self, option_name, section_name=None):
2017
configobj = self._get_configobj()
2018
if section_name is None:
2019
del configobj[option_name]
2021
del configobj[section_name][option_name]
2022
for hook in OldConfigHooks['remove']:
2023
hook(self, option_name)
2024
1511
self._set_configobj(configobj)
2026
1513
def _get_config_file(self):
2028
f = BytesIO(self._transport.get_bytes(self._filename))
2029
for hook in OldConfigHooks['load']:
1515
return StringIO(self._transport.get_bytes(self._filename))
2032
1516
except errors.NoSuchFile:
2034
except errors.PermissionDenied:
2036
"Permission denied while trying to open "
2037
"configuration file %s.",
2038
urlutils.unescape_for_display(
2039
urlutils.join(self._transport.base, self._filename),
2043
def _external_url(self):
2044
return urlutils.join(self._transport.external_url(), self._filename)
2046
1519
def _get_configobj(self):
2047
f = self._get_config_file()
2050
conf = ConfigObj(f, encoding='utf-8')
2051
except configobj.ConfigObjError as e:
2052
raise ParseConfigError(e.errors, self._external_url())
2053
except UnicodeDecodeError:
2054
raise ConfigContentError(self._external_url())
1520
return ConfigObj(self._get_config_file(), encoding='utf-8')
2059
1522
def _set_configobj(self, configobj):
2060
out_file = BytesIO()
1523
out_file = StringIO()
2061
1524
configobj.write(out_file)
2062
1525
out_file.seek(0)
2063
1526
self._transport.put_file(self._filename, out_file)
2064
for hook in OldConfigHooks['save']:
2068
class Option(object):
2069
"""An option definition.
2071
The option *values* are stored in config files and found in sections.
2073
Here we define various properties about the option itself, its default
2074
value, how to convert it from stores, what to do when invalid values are
2075
encoutered, in which config files it can be stored.
2078
def __init__(self, name, override_from_env=None,
2079
default=None, default_from_env=None,
2080
help=None, from_unicode=None, invalid=None, unquote=True):
2081
"""Build an option definition.
2083
:param name: the name used to refer to the option.
2085
:param override_from_env: A list of environment variables which can
2086
provide override any configuration setting.
2088
:param default: the default value to use when none exist in the config
2089
stores. This is either a string that ``from_unicode`` will convert
2090
into the proper type, a callable returning a unicode string so that
2091
``from_unicode`` can be used on the return value, or a python
2092
object that can be stringified (so only the empty list is supported
2095
:param default_from_env: A list of environment variables which can
2096
provide a default value. 'default' will be used only if none of the
2097
variables specified here are set in the environment.
2099
:param help: a doc string to explain the option to the user.
2101
:param from_unicode: a callable to convert the unicode string
2102
representing the option value in a store or its default value.
2104
:param invalid: the action to be taken when an invalid value is
2105
encountered in a store. This is called only when from_unicode is
2106
invoked to convert a string and returns None or raise ValueError or
2107
TypeError. Accepted values are: None (ignore invalid values),
2108
'warning' (emit a warning), 'error' (emit an error message and
2111
:param unquote: should the unicode value be unquoted before conversion.
2112
This should be used only when the store providing the values cannot
2113
safely unquote them (see http://pad.lv/906897). It is provided so
2114
daughter classes can handle the quoting themselves.
2116
if override_from_env is None:
2117
override_from_env = []
2118
if default_from_env is None:
2119
default_from_env = []
2121
self.override_from_env = override_from_env
2122
# Convert the default value to a unicode string so all values are
2123
# strings internally before conversion (via from_unicode) is attempted.
2126
elif isinstance(default, list):
2127
# Only the empty list is supported
2129
raise AssertionError(
2130
'Only empty lists are supported as default values')
2132
elif isinstance(default, (binary_type, text_type, bool, int, float)):
2133
# Rely on python to convert strings, booleans and integers
2134
self.default = u'%s' % (default,)
2135
elif callable(default):
2136
self.default = default
2138
# other python objects are not expected
2139
raise AssertionError('%r is not supported as a default value'
2141
self.default_from_env = default_from_env
2143
self.from_unicode = from_unicode
2144
self.unquote = unquote
2145
if invalid and invalid not in ('warning', 'error'):
2146
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2147
self.invalid = invalid
2153
def convert_from_unicode(self, store, unicode_value):
2154
if self.unquote and store is not None and unicode_value is not None:
2155
unicode_value = store.unquote(unicode_value)
2156
if self.from_unicode is None or unicode_value is None:
2157
# Don't convert or nothing to convert
2158
return unicode_value
2160
converted = self.from_unicode(unicode_value)
2161
except (ValueError, TypeError):
2162
# Invalid values are ignored
2164
if converted is None and self.invalid is not None:
2165
# The conversion failed
2166
if self.invalid == 'warning':
2167
trace.warning('Value "%s" is not valid for "%s"',
2168
unicode_value, self.name)
2169
elif self.invalid == 'error':
2170
raise ConfigOptionValueError(self.name, unicode_value)
2173
def get_override(self):
2175
for var in self.override_from_env:
2177
# If the env variable is defined, its value takes precedence
2178
value = os.environ[var]
2180
value = value.decode(osutils.get_user_encoding())
2186
def get_default(self):
2188
for var in self.default_from_env:
2190
# If the env variable is defined, its value is the default one
2191
value = os.environ[var]
2193
value = value.decode(osutils.get_user_encoding())
2198
# Otherwise, fallback to the value defined at registration
2199
if callable(self.default):
2200
value = self.default()
2201
if not isinstance(value, text_type):
2202
raise AssertionError(
2203
"Callable default value for '%s' should be unicode"
2206
value = self.default
2209
def get_help_topic(self):
2212
def get_help_text(self, additional_see_also=None, plain=True):
2214
from breezy import help_topics
2215
result += help_topics._format_see_also(additional_see_also)
2217
result = help_topics.help_as_plain_text(result)
2221
# Predefined converters to get proper values from store
2223
def bool_from_store(unicode_str):
2224
return ui.bool_from_string(unicode_str)
2227
def int_from_store(unicode_str):
2228
return int(unicode_str)
2231
_unit_suffixes = dict(K=10**3, M=10**6, G=10**9)
2234
def int_SI_from_store(unicode_str):
2235
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2237
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2238
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2241
:return Integer, expanded to its base-10 value if a proper SI unit is
2242
found, None otherwise.
2244
regexp = "^(\\d+)(([" + ''.join(_unit_suffixes) + "])b?)?$"
2245
p = re.compile(regexp, re.IGNORECASE)
2246
m = p.match(unicode_str)
2249
val, _, unit = m.groups()
2253
coeff = _unit_suffixes[unit.upper()]
2256
gettext('{0} is not an SI unit.').format(unit))
2261
def float_from_store(unicode_str):
2262
return float(unicode_str)
2265
# Use an empty dict to initialize an empty configobj avoiding all parsing and
2267
_list_converter_config = configobj.ConfigObj(
2268
{}, encoding='utf-8', list_values=True, interpolation=False)
2271
class ListOption(Option):
2273
def __init__(self, name, default=None, default_from_env=None,
2274
help=None, invalid=None):
2275
"""A list Option definition.
2277
This overrides the base class so the conversion from a unicode string
2278
can take quoting into account.
2280
super(ListOption, self).__init__(
2281
name, default=default, default_from_env=default_from_env,
2282
from_unicode=self.from_unicode, help=help,
2283
invalid=invalid, unquote=False)
2285
def from_unicode(self, unicode_str):
2286
if not isinstance(unicode_str, string_types):
2288
# Now inject our string directly as unicode. All callers got their
2289
# value from configobj, so values that need to be quoted are already
2291
_list_converter_config.reset()
2292
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2293
maybe_list = _list_converter_config['list']
2294
if isinstance(maybe_list, string_types):
2296
# A single value, most probably the user forgot (or didn't care
2297
# to add) the final ','
2300
# The empty string, convert to empty list
2303
# We rely on ConfigObj providing us with a list already
2308
class RegistryOption(Option):
2309
"""Option for a choice from a registry."""
2311
def __init__(self, name, registry, default_from_env=None,
2312
help=None, invalid=None):
2313
"""A registry based Option definition.
2315
This overrides the base class so the conversion from a unicode string
2316
can take quoting into account.
2318
super(RegistryOption, self).__init__(
2319
name, default=lambda: registry.default_key,
2320
default_from_env=default_from_env,
2321
from_unicode=self.from_unicode, help=help,
2322
invalid=invalid, unquote=False)
2323
self.registry = registry
2325
def from_unicode(self, unicode_str):
2326
if not isinstance(unicode_str, string_types):
2329
return self.registry.get(unicode_str)
2332
"Invalid value %s for %s."
2333
"See help for a list of possible values." % (unicode_str,
2338
ret = [self._help, "\n\nThe following values are supported:\n"]
2339
for key in self.registry.keys():
2340
ret.append(" %s - %s\n" % (key, self.registry.get_help(key)))
2344
_option_ref_re = lazy_regex.lazy_compile('({[^\\d\\W](?:\\.\\w|-\\w|\\w)*})')
2345
"""Describes an expandable option reference.
2347
We want to match the most embedded reference first.
2349
I.e. for '{{foo}}' we will get '{foo}',
2350
for '{bar{baz}}' we will get '{baz}'
2354
def iter_option_refs(string):
2355
# Split isolate refs so every other chunk is a ref
2357
for chunk in _option_ref_re.split(string):
2362
class OptionRegistry(registry.Registry):
2363
"""Register config options by their name.
2365
This overrides ``registry.Registry`` to simplify registration by acquiring
2366
some information from the option object itself.
2369
def _check_option_name(self, option_name):
2370
"""Ensures an option name is valid.
2372
:param option_name: The name to validate.
2374
if _option_ref_re.match('{%s}' % option_name) is None:
2375
raise IllegalOptionName(option_name)
2377
def register(self, option):
2378
"""Register a new option to its name.
2380
:param option: The option to register. Its name is used as the key.
2382
self._check_option_name(option.name)
2383
super(OptionRegistry, self).register(option.name, option,
2386
def register_lazy(self, key, module_name, member_name):
2387
"""Register a new option to be loaded on request.
2389
:param key: the key to request the option later. Since the registration
2390
is lazy, it should be provided and match the option name.
2392
:param module_name: the python path to the module. Such as 'os.path'.
2394
:param member_name: the member of the module to return. If empty or
2395
None, get() will return the module itself.
2397
self._check_option_name(key)
2398
super(OptionRegistry, self).register_lazy(key,
2399
module_name, member_name)
2401
def get_help(self, key=None):
2402
"""Get the help text associated with the given key"""
2403
option = self.get(key)
2404
the_help = option.help
2405
if callable(the_help):
2406
return the_help(self, key)
2410
option_registry = OptionRegistry()
2413
# Registered options in lexicographical order
2415
option_registry.register(
2416
Option('append_revisions_only',
2417
default=None, from_unicode=bool_from_store, invalid='warning',
2419
Whether to only append revisions to the mainline.
2421
If this is set to true, then it is not possible to change the
2422
existing mainline of the branch.
2424
option_registry.register(
2425
ListOption('acceptable_keys',
2428
List of GPG key patterns which are acceptable for verification.
2430
option_registry.register(
2431
Option('add.maximum_file_size',
2432
default=u'20MB', from_unicode=int_SI_from_store,
2434
Size above which files should be added manually.
2436
Files below this size are added automatically when using ``bzr add`` without
2439
A negative value means disable the size check.
2441
option_registry.register(
2443
default=None, from_unicode=bool_from_store,
2445
Is the branch bound to ``bound_location``.
2447
If set to "True", the branch should act as a checkout, and push each commit to
2448
the bound_location. This option is normally set by ``bind``/``unbind``.
2450
See also: bound_location.
2452
option_registry.register(
2453
Option('bound_location',
2456
The location that commits should go to when acting as a checkout.
2458
This option is normally set by ``bind``.
2462
option_registry.register(
2463
Option('branch.fetch_tags', default=False, from_unicode=bool_from_store,
2465
Whether revisions associated with tags should be fetched.
2467
option_registry.register_lazy(
2468
'transform.orphan_policy', 'breezy.transform', 'opt_transform_orphan')
2469
option_registry.register(
2470
Option('bzr.workingtree.worth_saving_limit', default=10,
2471
from_unicode=int_from_store, invalid='warning',
2473
How many changes before saving the dirstate.
2475
-1 means that we will never rewrite the dirstate file for only
2476
stat-cache changes. Regardless of this setting, we will always rewrite
2477
the dirstate file if a file is added/removed/renamed/etc. This flag only
2478
affects the behavior of updating the dirstate file after we notice that
2479
a file has been touched.
2481
option_registry.register(
2482
Option('bugtracker', default=None,
2484
Default bug tracker to use.
2486
This bug tracker will be used for example when marking bugs
2487
as fixed using ``bzr commit --fixes``, if no explicit
2488
bug tracker was specified.
2490
option_registry.register(
2491
Option('calculate_revnos', default=True,
2492
from_unicode=bool_from_store,
2494
Calculate revision numbers if they are not known.
2496
Always show revision numbers, even for branch formats that don't store them
2497
natively (such as Git). Calculating the revision number requires traversing
2498
the left hand ancestry of the branch and can be slow on very large branches.
2500
option_registry.register(
2501
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2502
from_unicode=signature_policy_from_unicode,
2504
GPG checking policy.
2506
Possible values: require, ignore, check-available (default)
2508
this option will control whether bzr will require good gpg
2509
signatures, ignore them, or check them if they are
2512
option_registry.register(
2513
Option('child_submit_format',
2514
help='''The preferred format of submissions to this branch.'''))
2515
option_registry.register(
2516
Option('child_submit_to',
2517
help='''Where submissions to this branch are mailed to.'''))
2518
option_registry.register(
2519
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2520
from_unicode=signing_policy_from_unicode,
2524
Possible values: always, never, when-required (default)
2526
This option controls whether bzr will always create
2527
gpg signatures or not on commits.
2529
option_registry.register(
2530
Option('dirstate.fdatasync', default=True,
2531
from_unicode=bool_from_store,
2533
Flush dirstate changes onto physical disk?
2535
If true (default), working tree metadata changes are flushed through the
2536
OS buffers to physical disk. This is somewhat slower, but means data
2537
should not be lost if the machine crashes. See also repository.fdatasync.
2539
option_registry.register(
2540
ListOption('debug_flags', default=[],
2541
help='Debug flags to activate.'))
2542
option_registry.register(
2543
Option('default_format', default='2a',
2544
help='Format used when creating branches.'))
2545
option_registry.register(
2547
help='The command called to launch an editor to enter a message.'))
2548
option_registry.register(
2549
Option('email', override_from_env=['BRZ_EMAIL', 'BZR_EMAIL'],
2550
default=bedding.default_email, help='The users identity'))
2551
option_registry.register(
2552
Option('gpg_signing_key',
2555
GPG key to use for signing.
2557
This defaults to the first key associated with the users email.
2559
option_registry.register(
2561
help='Language to translate messages into.'))
2562
option_registry.register(
2563
Option('locks.steal_dead', default=True, from_unicode=bool_from_store,
2565
Steal locks that appears to be dead.
2567
If set to True, bzr will check if a lock is supposed to be held by an
2568
active process from the same user on the same machine. If the user and
2569
machine match, but no process with the given PID is active, then bzr
2570
will automatically break the stale lock, and create a new lock for
2572
Otherwise, bzr will prompt as normal to break the lock.
2574
option_registry.register(
2575
Option('log_format', default='long',
2577
Log format to use when displaying revisions.
2579
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2580
may be provided by plugins.
2582
option_registry.register_lazy('mail_client', 'breezy.mail_client',
2584
option_registry.register(
2585
Option('output_encoding',
2586
help='Unicode encoding for output'
2587
' (terminal encoding if not specified).'))
2588
option_registry.register(
2589
Option('parent_location',
2592
The location of the default branch for pull or merge.
2594
This option is normally set when creating a branch, the first ``pull`` or by
2595
``pull --remember``.
2597
option_registry.register(
2598
Option('post_commit', default=None,
2600
Post commit functions.
2602
An ordered list of python functions to call, separated by spaces.
2604
Each function takes branch, rev_id as parameters.
2606
option_registry.register_lazy('progress_bar', 'breezy.ui.text',
2608
option_registry.register(
2609
Option('public_branch',
2612
A publically-accessible version of this branch.
2614
This implies that the branch setting this option is not publically-accessible.
2615
Used and set by ``bzr send``.
2617
option_registry.register(
2618
Option('push_location',
2621
The location of the default branch for push.
2623
This option is normally set by the first ``push`` or ``push --remember``.
2625
option_registry.register(
2626
Option('push_strict', default=None,
2627
from_unicode=bool_from_store,
2629
The default value for ``push --strict``.
2631
If present, defines the ``--strict`` option default value for checking
2632
uncommitted changes before sending a merge directive.
2634
option_registry.register(
2635
Option('repository.fdatasync', default=True,
2636
from_unicode=bool_from_store,
2638
Flush repository changes onto physical disk?
2640
If true (default), repository changes are flushed through the OS buffers
2641
to physical disk. This is somewhat slower, but means data should not be
2642
lost if the machine crashes. See also dirstate.fdatasync.
2644
option_registry.register_lazy('smtp_server',
2645
'breezy.smtp_connection', 'smtp_server')
2646
option_registry.register_lazy('smtp_password',
2647
'breezy.smtp_connection', 'smtp_password')
2648
option_registry.register_lazy('smtp_username',
2649
'breezy.smtp_connection', 'smtp_username')
2650
option_registry.register(
2651
Option('selftest.timeout',
2653
from_unicode=int_from_store,
2654
help='Abort selftest if one test takes longer than this many seconds',
2657
option_registry.register(
2658
Option('send_strict', default=None,
2659
from_unicode=bool_from_store,
2661
The default value for ``send --strict``.
2663
If present, defines the ``--strict`` option default value for checking
2664
uncommitted changes before sending a bundle.
2667
option_registry.register(
2668
Option('serve.client_timeout',
2669
default=300.0, from_unicode=float_from_store,
2670
help="If we wait for a new request from a client for more than"
2671
" X seconds, consider the client idle, and hangup."))
2672
option_registry.register(
2674
default=None, override_from_env=['BRZ_SSH'],
2675
help='SSH vendor to use.'))
2676
option_registry.register(
2677
Option('stacked_on_location',
2679
help="""The location where this branch is stacked on."""))
2680
option_registry.register(
2681
Option('submit_branch',
2684
The branch you intend to submit your current work to.
2686
This is automatically set by ``bzr send`` and ``bzr merge``, and is also used
2687
by the ``submit:`` revision spec.
2689
option_registry.register(
2691
help='''Where submissions from this branch are mailed to.'''))
2692
option_registry.register(
2693
ListOption('suppress_warnings',
2695
help="List of warning classes to suppress."))
2696
option_registry.register(
2697
Option('validate_signatures_in_log', default=False,
2698
from_unicode=bool_from_store, invalid='warning',
2699
help='''Whether to validate signatures in brz log.'''))
2700
option_registry.register_lazy('ssl.ca_certs',
2701
'breezy.transport.http', 'opt_ssl_ca_certs')
2703
option_registry.register_lazy('ssl.cert_reqs',
2704
'breezy.transport.http', 'opt_ssl_cert_reqs')
2707
class Section(object):
2708
"""A section defines a dict of option name => value.
2710
This is merely a read-only dict which can add some knowledge about the
2711
options. It is *not* a python dict object though and doesn't try to mimic
2715
def __init__(self, section_id, options):
2716
self.id = section_id
2717
# We re-use the dict-like object received
2718
self.options = options
2720
def get(self, name, default=None, expand=True):
2721
return self.options.get(name, default)
2723
def iter_option_names(self):
2724
for k in self.options.keys():
2728
# Mostly for debugging use
2729
return "<config.%s id=%s>" % (self.__class__.__name__, self.id)
2732
_NewlyCreatedOption = object()
2733
"""Was the option created during the MutableSection lifetime"""
2734
_DeletedOption = object()
2735
"""Was the option deleted during the MutableSection lifetime"""
2738
class MutableSection(Section):
2739
"""A section allowing changes and keeping track of the original values."""
2741
def __init__(self, section_id, options):
2742
super(MutableSection, self).__init__(section_id, options)
2743
self.reset_changes()
2745
def set(self, name, value):
2746
if name not in self.options:
2747
# This is a new option
2748
self.orig[name] = _NewlyCreatedOption
2749
elif name not in self.orig:
2750
self.orig[name] = self.get(name, None)
2751
self.options[name] = value
2753
def remove(self, name):
2754
if name not in self.orig and name in self.options:
2755
self.orig[name] = self.get(name, None)
2756
del self.options[name]
2758
def reset_changes(self):
2761
def apply_changes(self, dirty, store):
2762
"""Apply option value changes.
2764
``self`` has been reloaded from the persistent storage. ``dirty``
2765
contains the changes made since the previous loading.
2767
:param dirty: the mutable section containing the changes.
2769
:param store: the store containing the section
2771
for k, expected in dirty.orig.items():
2772
actual = dirty.get(k, _DeletedOption)
2773
reloaded = self.get(k, _NewlyCreatedOption)
2774
if actual is _DeletedOption:
2775
if k in self.options:
2779
# Report concurrent updates in an ad-hoc way. This should only
2780
# occurs when different processes try to update the same option
2781
# which is not supported (as in: the config framework is not meant
2782
# to be used as a sharing mechanism).
2783
if expected != reloaded:
2784
if actual is _DeletedOption:
2785
actual = '<DELETED>'
2786
if reloaded is _NewlyCreatedOption:
2787
reloaded = '<CREATED>'
2788
if expected is _NewlyCreatedOption:
2789
expected = '<CREATED>'
2790
# Someone changed the value since we get it from the persistent
2792
trace.warning(gettext(
2793
"Option {0} in section {1} of {2} was changed"
2794
" from {3} to {4}. The {5} value will be saved.".format(
2795
k, self.id, store.external_url(), expected,
2797
# No need to keep track of these changes
2798
self.reset_changes()
2801
class Store(object):
2802
"""Abstract interface to persistent storage for configuration options."""
2804
readonly_section_class = Section
2805
mutable_section_class = MutableSection
2808
# Which sections need to be saved (by section id). We use a dict here
2809
# so the dirty sections can be shared by multiple callers.
2810
self.dirty_sections = {}
2812
def is_loaded(self):
2813
"""Returns True if the Store has been loaded.
2815
This is used to implement lazy loading and ensure the persistent
2816
storage is queried only when needed.
2818
raise NotImplementedError(self.is_loaded)
2821
"""Loads the Store from persistent storage."""
2822
raise NotImplementedError(self.load)
2824
def _load_from_string(self, bytes):
2825
"""Create a store from a string in configobj syntax.
2827
:param bytes: A string representing the file content.
2829
raise NotImplementedError(self._load_from_string)
2832
"""Unloads the Store.
2834
This should make is_loaded() return False. This is used when the caller
2835
knows that the persistent storage has changed or may have change since
2838
raise NotImplementedError(self.unload)
2840
def quote(self, value):
2841
"""Quote a configuration option value for storing purposes.
2843
This allows Stacks to present values as they will be stored.
2847
def unquote(self, value):
2848
"""Unquote a configuration option value into unicode.
2850
The received value is quoted as stored.
2855
"""Saves the Store to persistent storage."""
2856
raise NotImplementedError(self.save)
2858
def _need_saving(self):
2859
for s in self.dirty_sections.values():
2861
# At least one dirty section contains a modification
2865
def apply_changes(self, dirty_sections):
2866
"""Apply changes from dirty sections while checking for coherency.
2868
The Store content is discarded and reloaded from persistent storage to
2869
acquire up-to-date values.
2871
Dirty sections are MutableSection which kept track of the value they
2872
are expected to update.
2874
# We need an up-to-date version from the persistent storage, unload the
2875
# store. The reload will occur when needed (triggered by the first
2876
# get_mutable_section() call below.
2878
# Apply the changes from the preserved dirty sections
2879
for section_id, dirty in dirty_sections.items():
2880
clean = self.get_mutable_section(section_id)
2881
clean.apply_changes(dirty, self)
2882
# Everything is clean now
2883
self.dirty_sections = {}
2885
def save_changes(self):
2886
"""Saves the Store to persistent storage if changes occurred.
2888
Apply the changes recorded in the mutable sections to a store content
2889
refreshed from persistent storage.
2891
raise NotImplementedError(self.save_changes)
2893
def external_url(self):
2894
raise NotImplementedError(self.external_url)
2896
def get_sections(self):
2897
"""Returns an ordered iterable of existing sections.
2899
:returns: An iterable of (store, section).
2901
raise NotImplementedError(self.get_sections)
2903
def get_mutable_section(self, section_id=None):
2904
"""Returns the specified mutable section.
2906
:param section_id: The section identifier
2908
raise NotImplementedError(self.get_mutable_section)
2911
# Mostly for debugging use
2912
return "<config.%s(%s)>" % (self.__class__.__name__,
2913
self.external_url())
2916
class CommandLineStore(Store):
2917
"A store to carry command line overrides for the config options."""
2919
def __init__(self, opts=None):
2920
super(CommandLineStore, self).__init__()
2927
# The dict should be cleared but not replaced so it can be shared.
2928
self.options.clear()
2930
def _from_cmdline(self, overrides):
2931
# Reset before accepting new definitions
2933
for over in overrides:
2935
name, value = over.split('=', 1)
2937
raise errors.BzrCommandError(
2938
gettext("Invalid '%s', should be of the form 'name=value'")
2940
self.options[name] = value
2942
def external_url(self):
2943
# Not an url but it makes debugging easier and is never needed
2947
def get_sections(self):
2948
yield self, self.readonly_section_class(None, self.options)
2951
class IniFileStore(Store):
2952
"""A config Store using ConfigObj for storage.
2954
:ivar _config_obj: Private member to hold the ConfigObj instance used to
2955
serialize/deserialize the config file.
2959
"""A config Store using ConfigObj for storage.
2961
super(IniFileStore, self).__init__()
2962
self._config_obj = None
2964
def is_loaded(self):
2965
return self._config_obj is not None
2968
self._config_obj = None
2969
self.dirty_sections = {}
2971
def _load_content(self):
2972
"""Load the config file bytes.
2974
This should be provided by subclasses
2976
:return: Byte string
2978
raise NotImplementedError(self._load_content)
2980
def _save_content(self, content):
2981
"""Save the config file bytes.
2983
This should be provided by subclasses
2985
:param content: Config file bytes to write
2987
raise NotImplementedError(self._save_content)
2990
"""Load the store from the associated file."""
2991
if self.is_loaded():
2993
content = self._load_content()
2994
self._load_from_string(content)
2995
for hook in ConfigHooks['load']:
2998
def _load_from_string(self, bytes):
2999
"""Create a config store from a string.
3001
:param bytes: A string representing the file content.
3003
if self.is_loaded():
3004
raise AssertionError('Already loaded: %r' % (self._config_obj,))
3005
co_input = BytesIO(bytes)
3007
# The config files are always stored utf8-encoded
3008
self._config_obj = ConfigObj(co_input, encoding='utf-8',
3010
except configobj.ConfigObjError as e:
3011
self._config_obj = None
3012
raise ParseConfigError(e.errors, self.external_url())
3013
except UnicodeDecodeError:
3014
raise ConfigContentError(self.external_url())
3016
def save_changes(self):
3017
if not self.is_loaded():
3020
if not self._need_saving():
3022
# Preserve the current version
3023
dirty_sections = self.dirty_sections.copy()
3024
self.apply_changes(dirty_sections)
3025
# Save to the persistent storage
3029
if not self.is_loaded():
3033
self._config_obj.write(out)
3034
self._save_content(out.getvalue())
3035
for hook in ConfigHooks['save']:
3038
def get_sections(self):
3039
"""Get the configobj section in the file order.
3041
:returns: An iterable of (store, section).
3043
# We need a loaded store
3046
except (errors.NoSuchFile, errors.PermissionDenied):
3047
# If the file can't be read, there is no sections
3049
cobj = self._config_obj
3051
yield self, self.readonly_section_class(None, cobj)
3052
for section_name in cobj.sections:
3054
self.readonly_section_class(section_name,
3055
cobj[section_name]))
3057
def get_mutable_section(self, section_id=None):
3058
# We need a loaded store
3061
except errors.NoSuchFile:
3062
# The file doesn't exist, let's pretend it was empty
3063
self._load_from_string(b'')
3064
if section_id in self.dirty_sections:
3065
# We already created a mutable section for this id
3066
return self.dirty_sections[section_id]
3067
if section_id is None:
3068
section = self._config_obj
3070
section = self._config_obj.setdefault(section_id, {})
3071
mutable_section = self.mutable_section_class(section_id, section)
3072
# All mutable sections can become dirty
3073
self.dirty_sections[section_id] = mutable_section
3074
return mutable_section
3076
def quote(self, value):
3078
# configobj conflates automagical list values and quoting
3079
self._config_obj.list_values = True
3080
return self._config_obj._quote(value)
3082
self._config_obj.list_values = False
3084
def unquote(self, value):
3085
if value and isinstance(value, string_types):
3086
# _unquote doesn't handle None nor empty strings nor anything that
3087
# is not a string, really.
3088
value = self._config_obj._unquote(value)
3091
def external_url(self):
3092
# Since an IniFileStore can be used without a file (at least in tests),
3093
# it's better to provide something than raising a NotImplementedError.
3094
# All daughter classes are supposed to provide an implementation
3096
return 'In-Process Store, no URL'
3099
class TransportIniFileStore(IniFileStore):
3100
"""IniFileStore that loads files from a transport.
3102
:ivar transport: The transport object where the config file is located.
3104
:ivar file_name: The config file basename in the transport directory.
3107
def __init__(self, transport, file_name):
3108
"""A Store using a ini file on a Transport
3110
:param transport: The transport object where the config file is located.
3111
:param file_name: The config file basename in the transport directory.
3113
super(TransportIniFileStore, self).__init__()
3114
self.transport = transport
3115
self.file_name = file_name
3117
def _load_content(self):
3119
return self.transport.get_bytes(self.file_name)
3120
except errors.PermissionDenied:
3121
trace.warning("Permission denied while trying to load "
3122
"configuration store %s.", self.external_url())
3125
def _save_content(self, content):
3126
self.transport.put_bytes(self.file_name, content)
3128
def external_url(self):
3129
# FIXME: external_url should really accepts an optional relpath
3130
# parameter (bug #750169) :-/ -- vila 2011-04-04
3131
# The following will do in the interim but maybe we don't want to
3132
# expose a path here but rather a config ID and its associated
3133
# object </hand wawe>.
3134
return urlutils.join(
3135
self.transport.external_url(), urlutils.escape(self.file_name))
3138
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
3139
# unlockable stores for use with objects that can already ensure the locking
3140
# (think branches). If different stores (not based on ConfigObj) are created,
3141
# they may face the same issue.
3144
class LockableIniFileStore(TransportIniFileStore):
3145
"""A ConfigObjStore using locks on save to ensure store integrity."""
3147
def __init__(self, transport, file_name, lock_dir_name=None):
3148
"""A config Store using ConfigObj for storage.
3150
:param transport: The transport object where the config file is located.
3152
:param file_name: The config file basename in the transport directory.
3154
if lock_dir_name is None:
3155
lock_dir_name = 'lock'
3156
self.lock_dir_name = lock_dir_name
3157
super(LockableIniFileStore, self).__init__(transport, file_name)
3158
self._lock = lockdir.LockDir(self.transport, self.lock_dir_name)
3160
def lock_write(self, token=None):
3161
"""Takes a write lock in the directory containing the config file.
3163
If the directory doesn't exist it is created.
3165
# FIXME: This doesn't check the ownership of the created directories as
3166
# ensure_config_dir_exists does. It should if the transport is local
3167
# -- vila 2011-04-06
3168
self.transport.create_prefix()
3169
token = self._lock.lock_write(token)
3170
return lock.LogicalLockResult(self.unlock, token)
3175
def break_lock(self):
3176
self._lock.break_lock()
3179
with self.lock_write():
3180
# We need to be able to override the undecorated implementation
3181
self.save_without_locking()
3183
def save_without_locking(self):
3184
super(LockableIniFileStore, self).save()
3187
# FIXME: global, breezy, shouldn't that be 'user' instead or even
3188
# 'user_defaults' as opposed to 'user_overrides', 'system_defaults'
3189
# (/etc/bzr/bazaar.conf) and 'system_overrides' ? -- vila 2011-04-05
3191
# FIXME: Moreover, we shouldn't need classes for these stores either, factory
3192
# functions or a registry will make it easier and clearer for tests, focusing
3193
# on the relevant parts of the API that needs testing -- vila 20110503 (based
3194
# on a poolie's remark)
3195
class GlobalStore(LockableIniFileStore):
3196
"""A config store for global options.
3198
There is a single GlobalStore for a given process.
3201
def __init__(self, possible_transports=None):
3202
path, kind = bedding._config_dir()
3203
t = transport.get_transport_from_path(
3204
path, possible_transports=possible_transports)
3205
super(GlobalStore, self).__init__(t, kind + '.conf')
3209
class LocationStore(LockableIniFileStore):
3210
"""A config store for options specific to a location.
3212
There is a single LocationStore for a given process.
3215
def __init__(self, possible_transports=None):
3216
t = transport.get_transport_from_path(
3217
bedding.config_dir(), possible_transports=possible_transports)
3218
super(LocationStore, self).__init__(t, 'locations.conf')
3219
self.id = 'locations'
3222
class BranchStore(TransportIniFileStore):
3223
"""A config store for branch options.
3225
There is a single BranchStore for a given branch.
3228
def __init__(self, branch):
3229
super(BranchStore, self).__init__(branch.control_transport,
3231
self.branch = branch
3235
class ControlStore(LockableIniFileStore):
3237
def __init__(self, bzrdir):
3238
super(ControlStore, self).__init__(bzrdir.transport,
3240
lock_dir_name='branch_lock')
3244
class SectionMatcher(object):
3245
"""Select sections into a given Store.
3247
This is intended to be used to postpone getting an iterable of sections
3251
def __init__(self, store):
3254
def get_sections(self):
3255
# This is where we require loading the store so we can see all defined
3257
sections = self.store.get_sections()
3258
# Walk the revisions in the order provided
3259
for store, s in sections:
3263
def match(self, section):
3264
"""Does the proposed section match.
3266
:param section: A Section object.
3268
:returns: True if the section matches, False otherwise.
3270
raise NotImplementedError(self.match)
3273
class NameMatcher(SectionMatcher):
3275
def __init__(self, store, section_id):
3276
super(NameMatcher, self).__init__(store)
3277
self.section_id = section_id
3279
def match(self, section):
3280
return section.id == self.section_id
3283
class LocationSection(Section):
3285
def __init__(self, section, extra_path, branch_name=None):
3286
super(LocationSection, self).__init__(section.id, section.options)
3287
self.extra_path = extra_path
3288
if branch_name is None:
3290
self.locals = {'relpath': extra_path,
3291
'basename': urlutils.basename(extra_path),
3292
'branchname': branch_name}
3294
def get(self, name, default=None, expand=True):
3295
value = super(LocationSection, self).get(name, default)
3296
if value is not None and expand:
3297
policy_name = self.get(name + ':policy', None)
3298
policy = _policy_value.get(policy_name, POLICY_NONE)
3299
if policy == POLICY_APPENDPATH:
3300
value = urlutils.join(value, self.extra_path)
3301
# expand section local options right now (since POLICY_APPENDPATH
3302
# will never add options references, it's ok to expand after it).
3304
for is_ref, chunk in iter_option_refs(value):
3306
chunks.append(chunk)
3309
if ref in self.locals:
3310
chunks.append(self.locals[ref])
3312
chunks.append(chunk)
3313
value = ''.join(chunks)
3317
class StartingPathMatcher(SectionMatcher):
3318
"""Select sections for a given location respecting the Store order."""
3320
# FIXME: Both local paths and urls can be used for section names as well as
3321
# ``location`` to stay consistent with ``LocationMatcher`` which itself
3322
# inherited the fuzziness from the previous ``LocationConfig``
3323
# implementation. We probably need to revisit which encoding is allowed for
3324
# both ``location`` and section names and how we normalize
3325
# them. http://pad.lv/85479, http://pad.lv/437009 and http://359320 are
3326
# related too. -- vila 2012-01-04
3328
def __init__(self, store, location):
3329
super(StartingPathMatcher, self).__init__(store)
3330
if location.startswith('file://'):
3331
location = urlutils.local_path_from_url(location)
3332
self.location = location
3334
def get_sections(self):
3335
"""Get all sections matching ``location`` in the store.
3337
The most generic sections are described first in the store, then more
3338
specific ones can be provided for reduced scopes.
3340
The returned section are therefore returned in the reversed order so
3341
the most specific ones can be found first.
3343
location_parts = self.location.rstrip('/').split('/')
3345
# Later sections are more specific, they should be returned first
3346
for _, section in reversed(list(store.get_sections())):
3347
if section.id is None:
3348
# The no-name section is always included if present
3349
yield store, LocationSection(section, self.location)
3351
section_path = section.id
3352
if section_path.startswith('file://'):
3353
# the location is already a local path or URL, convert the
3354
# section id to the same format
3355
section_path = urlutils.local_path_from_url(section_path)
3356
if (self.location.startswith(section_path) or
3357
fnmatch.fnmatch(self.location, section_path)):
3358
section_parts = section_path.rstrip('/').split('/')
3359
extra_path = '/'.join(location_parts[len(section_parts):])
3360
yield store, LocationSection(section, extra_path)
3363
class LocationMatcher(SectionMatcher):
3365
def __init__(self, store, location):
3366
super(LocationMatcher, self).__init__(store)
3367
url, params = urlutils.split_segment_parameters(location)
3368
if location.startswith('file://'):
3369
location = urlutils.local_path_from_url(location)
3370
self.location = location
3371
branch_name = params.get('branch')
3372
if branch_name is None:
3373
self.branch_name = urlutils.basename(self.location)
3375
self.branch_name = urlutils.unescape(branch_name)
3377
def _get_matching_sections(self):
3378
"""Get all sections matching ``location``."""
3379
# We slightly diverge from LocalConfig here by allowing the no-name
3380
# section as the most generic one and the lower priority.
3381
no_name_section = None
3383
# Filter out the no_name_section so _iter_for_location_by_parts can be
3384
# used (it assumes all sections have a name).
3385
for _, section in self.store.get_sections():
3386
if section.id is None:
3387
no_name_section = section
3389
all_sections.append(section)
3390
# Unfortunately _iter_for_location_by_parts deals with section names so
3391
# we have to resync.
3392
filtered_sections = _iter_for_location_by_parts(
3393
[s.id for s in all_sections], self.location)
3394
iter_all_sections = iter(all_sections)
3395
matching_sections = []
3396
if no_name_section is not None:
3397
matching_sections.append(
3398
(0, LocationSection(no_name_section, self.location)))
3399
for section_id, extra_path, length in filtered_sections:
3400
# a section id is unique for a given store so it's safe to take the
3401
# first matching section while iterating. Also, all filtered
3402
# sections are part of 'all_sections' and will always be found
3405
section = next(iter_all_sections)
3406
if section_id == section.id:
3407
section = LocationSection(section, extra_path,
3409
matching_sections.append((length, section))
3411
return matching_sections
3413
def get_sections(self):
3414
# Override the default implementation as we want to change the order
3415
# We want the longest (aka more specific) locations first
3416
sections = sorted(self._get_matching_sections(),
3417
key=lambda match: (match[0], match[1].id),
3419
# Sections mentioning 'ignore_parents' restrict the selection
3420
for _, section in sections:
3421
# FIXME: We really want to use as_bool below -- vila 2011-04-07
3422
ignore = section.get('ignore_parents', None)
3423
if ignore is not None:
3424
ignore = ui.bool_from_string(ignore)
3427
# Finally, we have a valid section
3428
yield self.store, section
3431
# FIXME: _shared_stores should be an attribute of a library state once a
3432
# library_state object is always available.
3434
_shared_stores_at_exit_installed = False
3437
class Stack(object):
3438
"""A stack of configurations where an option can be defined"""
3440
def __init__(self, sections_def, store=None, mutable_section_id=None):
3441
"""Creates a stack of sections with an optional store for changes.
3443
:param sections_def: A list of Section or callables that returns an
3444
iterable of Section. This defines the Sections for the Stack and
3445
can be called repeatedly if needed.
3447
:param store: The optional Store where modifications will be
3448
recorded. If none is specified, no modifications can be done.
3450
:param mutable_section_id: The id of the MutableSection where changes
3451
are recorded. This requires the ``store`` parameter to be
3454
self.sections_def = sections_def
3456
self.mutable_section_id = mutable_section_id
3458
def iter_sections(self):
3459
"""Iterate all the defined sections."""
3460
# Ensuring lazy loading is achieved by delaying section matching (which
3461
# implies querying the persistent storage) until it can't be avoided
3462
# anymore by using callables to describe (possibly empty) section
3464
for sections in self.sections_def:
3465
for store, section in sections():
3466
yield store, section
3468
def get(self, name, expand=True, convert=True):
3469
"""Return the *first* option value found in the sections.
3471
This is where we guarantee that sections coming from Store are loaded
3472
lazily: the loading is delayed until we need to either check that an
3473
option exists or get its value, which in turn may require to discover
3474
in which sections it can be defined. Both of these (section and option
3475
existence) require loading the store (even partially).
3477
:param name: The queried option.
3479
:param expand: Whether options references should be expanded.
3481
:param convert: Whether the option value should be converted from
3482
unicode (do nothing for non-registered options).
3484
:returns: The value of the option.
3486
# FIXME: No caching of options nor sections yet -- vila 20110503
3488
found_store = None # Where the option value has been found
3489
# If the option is registered, it may provide additional info about
3492
opt = option_registry.get(name)
3497
def expand_and_convert(val):
3498
# This may need to be called in different contexts if the value is
3499
# None or ends up being None during expansion or conversion.
3502
if isinstance(val, string_types):
3503
val = self._expand_options_in_string(val)
3505
trace.warning('Cannot expand "%s":'
3506
' %s does not support option expansion'
3507
% (name, type(val)))
3509
val = found_store.unquote(val)
3511
val = opt.convert_from_unicode(found_store, val)
3514
# First of all, check if the environment can override the configuration
3516
if opt is not None and opt.override_from_env:
3517
value = opt.get_override()
3518
value = expand_and_convert(value)
3520
for store, section in self.iter_sections():
3521
value = section.get(name)
3522
if value is not None:
3525
value = expand_and_convert(value)
3526
if opt is not None and value is None:
3527
# If the option is registered, it may provide a default value
3528
value = opt.get_default()
3529
value = expand_and_convert(value)
3530
for hook in ConfigHooks['get']:
3531
hook(self, name, value)
3534
def expand_options(self, string, env=None):
3535
"""Expand option references in the string in the configuration context.
3537
:param string: The string containing option(s) to expand.
3539
:param env: An option dict defining additional configuration options or
3540
overriding existing ones.
3542
:returns: The expanded string.
3544
return self._expand_options_in_string(string, env)
3546
def _expand_options_in_string(self, string, env=None, _refs=None):
3547
"""Expand options in the string in the configuration context.
3549
:param string: The string to be expanded.
3551
:param env: An option dict defining additional configuration options or
3552
overriding existing ones.
3554
:param _refs: Private list (FIFO) containing the options being expanded
3557
:returns: The expanded string.
3560
# Not much to expand there
3563
# What references are currently resolved (to detect loops)
3566
# We need to iterate until no more refs appear ({{foo}} will need two
3567
# iterations for example).
3572
for is_ref, chunk in iter_option_refs(result):
3574
chunks.append(chunk)
3579
raise OptionExpansionLoop(string, _refs)
3581
value = self._expand_option(name, env, _refs)
3583
raise ExpandingUnknownOption(name, string)
3584
chunks.append(value)
3586
result = ''.join(chunks)
3589
def _expand_option(self, name, env, _refs):
3590
if env is not None and name in env:
3591
# Special case, values provided in env takes precedence over
3595
value = self.get(name, expand=False, convert=False)
3596
value = self._expand_options_in_string(value, env, _refs)
3599
def _get_mutable_section(self):
3600
"""Get the MutableSection for the Stack.
3602
This is where we guarantee that the mutable section is lazily loaded:
3603
this means we won't load the corresponding store before setting a value
3604
or deleting an option. In practice the store will often be loaded but
3605
this helps catching some programming errors.
3608
section = store.get_mutable_section(self.mutable_section_id)
3609
return store, section
3611
def set(self, name, value):
3612
"""Set a new value for the option."""
3613
store, section = self._get_mutable_section()
3614
section.set(name, store.quote(value))
3615
for hook in ConfigHooks['set']:
3616
hook(self, name, value)
3618
def remove(self, name):
3619
"""Remove an existing option."""
3620
_, section = self._get_mutable_section()
3621
section.remove(name)
3622
for hook in ConfigHooks['remove']:
3626
# Mostly for debugging use
3627
return "<config.%s(%s)>" % (self.__class__.__name__, id(self))
3629
def _get_overrides(self):
3630
if breezy._global_state is not None:
3631
# TODO(jelmer): Urgh, this is circular so we can't call breezy.get_global_state()
3632
return breezy._global_state.cmdline_overrides.get_sections()
3635
def get_shared_store(self, store, state=None):
3636
"""Get a known shared store.
3638
Store urls uniquely identify them and are used to ensure a single copy
3639
is shared across all users.
3641
:param store: The store known to the caller.
3643
:param state: The library state where the known stores are kept.
3645
:returns: The store received if it's not a known one, an already known
3649
# TODO(jelmer): Urgh, this is circular so we can't call breezy.get_global_state()
3650
state = breezy._global_state
3652
global _shared_stores_at_exit_installed
3653
stores = _shared_stores
3655
def save_config_changes():
3656
for k, store in stores.items():
3657
store.save_changes()
3658
if not _shared_stores_at_exit_installed:
3659
# FIXME: Ugly hack waiting for library_state to always be
3660
# available. -- vila 20120731
3662
atexit.register(save_config_changes)
3663
_shared_stores_at_exit_installed = True
3665
stores = state.config_stores
3666
url = store.external_url()
3674
class MemoryStack(Stack):
3675
"""A configuration stack defined from a string.
3677
This is mainly intended for tests and requires no disk resources.
3680
def __init__(self, content=None):
3681
"""Create an in-memory stack from a given content.
3683
It uses a single store based on configobj and support reading and
3686
:param content: The initial content of the store. If None, the store is
3687
not loaded and ``_load_from_string`` can and should be used if
3690
store = IniFileStore()
3691
if content is not None:
3692
store._load_from_string(content)
3693
super(MemoryStack, self).__init__(
3694
[store.get_sections], store)
3697
class _CompatibleStack(Stack):
3698
"""Place holder for compatibility with previous design.
3700
This is intended to ease the transition from the Config-based design to the
3701
Stack-based design and should not be used nor relied upon by plugins.
3703
One assumption made here is that the daughter classes will all use Stores
3704
derived from LockableIniFileStore).
3706
It implements set() and remove () by re-loading the store before applying
3707
the modification and saving it.
3709
The long term plan being to implement a single write by store to save
3710
all modifications, this class should not be used in the interim.
3713
def set(self, name, value):
3716
super(_CompatibleStack, self).set(name, value)
3717
# Force a write to persistent storage
3720
def remove(self, name):
3723
super(_CompatibleStack, self).remove(name)
3724
# Force a write to persistent storage
3728
class GlobalStack(Stack):
3729
"""Global options only stack.
3731
The following sections are queried:
3733
* command-line overrides,
3735
* the 'DEFAULT' section in bazaar.conf
3737
This stack will use the ``DEFAULT`` section in bazaar.conf as its
3742
gstore = self.get_shared_store(GlobalStore())
3743
super(GlobalStack, self).__init__(
3744
[self._get_overrides,
3745
NameMatcher(gstore, 'DEFAULT').get_sections],
3746
gstore, mutable_section_id='DEFAULT')
3749
class LocationStack(Stack):
3750
"""Per-location options falling back to global options stack.
3753
The following sections are queried:
3755
* command-line overrides,
3757
* the sections matching ``location`` in ``locations.conf``, the order being
3758
defined by the number of path components in the section glob, higher
3759
numbers first (from most specific section to most generic).
3761
* the 'DEFAULT' section in bazaar.conf
3763
This stack will use the ``location`` section in locations.conf as its
3767
def __init__(self, location):
3768
"""Make a new stack for a location and global configuration.
3770
:param location: A URL prefix to """
3771
lstore = self.get_shared_store(LocationStore())
3772
if location.startswith('file://'):
3773
location = urlutils.local_path_from_url(location)
3774
gstore = self.get_shared_store(GlobalStore())
3775
super(LocationStack, self).__init__(
3776
[self._get_overrides,
3777
LocationMatcher(lstore, location).get_sections,
3778
NameMatcher(gstore, 'DEFAULT').get_sections],
3779
lstore, mutable_section_id=location)
3782
class BranchStack(Stack):
3783
"""Per-location options falling back to branch then global options stack.
3785
The following sections are queried:
3787
* command-line overrides,
3789
* the sections matching ``location`` in ``locations.conf``, the order being
3790
defined by the number of path components in the section glob, higher
3791
numbers first (from most specific section to most generic),
3793
* the no-name section in branch.conf,
3795
* the ``DEFAULT`` section in ``bazaar.conf``.
3797
This stack will use the no-name section in ``branch.conf`` as its
3801
def __init__(self, branch):
3802
lstore = self.get_shared_store(LocationStore())
3803
bstore = branch._get_config_store()
3804
gstore = self.get_shared_store(GlobalStore())
3805
super(BranchStack, self).__init__(
3806
[self._get_overrides,
3807
LocationMatcher(lstore, branch.base).get_sections,
3808
NameMatcher(bstore, None).get_sections,
3809
NameMatcher(gstore, 'DEFAULT').get_sections],
3811
self.branch = branch
3813
def lock_write(self, token=None):
3814
return self.branch.lock_write(token)
3817
return self.branch.unlock()
3819
def set(self, name, value):
3820
with self.lock_write():
3821
super(BranchStack, self).set(name, value)
3822
# Unlocking the branch will trigger a store.save_changes() so the
3823
# last unlock saves all the changes.
3825
def remove(self, name):
3826
with self.lock_write():
3827
super(BranchStack, self).remove(name)
3828
# Unlocking the branch will trigger a store.save_changes() so the
3829
# last unlock saves all the changes.
3832
class RemoteControlStack(Stack):
3833
"""Remote control-only options stack."""
3835
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3836
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3837
# control.conf and is used only for stack options.
3839
def __init__(self, bzrdir):
3840
cstore = bzrdir._get_config_store()
3841
super(RemoteControlStack, self).__init__(
3842
[NameMatcher(cstore, None).get_sections],
3844
self.controldir = bzrdir
3847
class BranchOnlyStack(Stack):
3848
"""Branch-only options stack."""
3850
# FIXME: _BranchOnlyStack only uses branch.conf and is used only for the
3851
# stacked_on_location options waiting for http://pad.lv/832042 to be fixed.
3852
# -- vila 2011-12-16
3854
def __init__(self, branch):
3855
bstore = branch._get_config_store()
3856
super(BranchOnlyStack, self).__init__(
3857
[NameMatcher(bstore, None).get_sections],
3859
self.branch = branch
3861
def lock_write(self, token=None):
3862
return self.branch.lock_write(token)
3865
return self.branch.unlock()
3867
def set(self, name, value):
3868
with self.lock_write():
3869
super(BranchOnlyStack, self).set(name, value)
3870
# Force a write to persistent storage
3871
self.store.save_changes()
3873
def remove(self, name):
3874
with self.lock_write():
3875
super(BranchOnlyStack, self).remove(name)
3876
# Force a write to persistent storage
3877
self.store.save_changes()
3880
class cmd_config(commands.Command):
3881
__doc__ = """Display, set or remove a configuration option.
3883
Display the active value for option NAME.
3885
If --all is specified, NAME is interpreted as a regular expression and all
3886
matching options are displayed mentioning their scope and without resolving
3887
option references in the value). The active value that bzr will take into
3888
account is the first one displayed for each option.
3890
If NAME is not given, --all .* is implied (all options are displayed for the
3893
Setting a value is achieved by using NAME=value without spaces. The value
3894
is set in the most relevant scope and can be checked by displaying the
3897
Removing a value is achieved by using --remove NAME.
3900
takes_args = ['name?']
3904
# FIXME: This should be a registry option so that plugins can register
3905
# their own config files (or not) and will also address
3906
# http://pad.lv/788991 -- vila 20101115
3907
commands.Option('scope', help='Reduce the scope to the specified'
3908
' configuration file.',
3910
commands.Option('all',
3911
help='Display all the defined values for the matching options.',
3913
commands.Option('remove', help='Remove the option from'
3914
' the configuration file.'),
3917
_see_also = ['configuration']
3919
@commands.display_command
3920
def run(self, name=None, all=False, directory=None, scope=None,
3922
if directory is None:
3924
directory = directory_service.directories.dereference(directory)
3925
directory = urlutils.normalize_url(directory)
3927
raise errors.BzrError(
3928
'--all and --remove are mutually exclusive.')
3930
# Delete the option in the given scope
3931
self._remove_config_option(name, directory, scope)
3933
# Defaults to all options
3934
self._show_matching_options('.*', directory, scope)
3937
name, value = name.split('=', 1)
3939
# Display the option(s) value(s)
3941
self._show_matching_options(name, directory, scope)
3943
self._show_value(name, directory, scope)
3946
raise errors.BzrError(
3947
'Only one option can be set.')
3948
# Set the option value
3949
self._set_config_option(name, value, directory, scope)
3951
def _get_stack(self, directory, scope=None, write_access=False):
3952
"""Get the configuration stack specified by ``directory`` and ``scope``.
3954
:param directory: Where the configurations are derived from.
3956
:param scope: A specific config to start from.
3958
:param write_access: Whether a write access to the stack will be
3961
# FIXME: scope should allow access to plugin-specific stacks (even
3962
# reduced to the plugin-specific store), related to
3963
# http://pad.lv/788991 -- vila 2011-11-15
3964
if scope is not None:
3965
if scope == 'breezy':
3966
return GlobalStack()
3967
elif scope == 'locations':
3968
return LocationStack(directory)
3969
elif scope == 'branch':
3971
controldir.ControlDir.open_containing_tree_or_branch(
3974
self.add_cleanup(br.lock_write().unlock)
3975
return br.get_config_stack()
3976
raise NoSuchConfig(scope)
3980
controldir.ControlDir.open_containing_tree_or_branch(
3983
self.add_cleanup(br.lock_write().unlock)
3984
return br.get_config_stack()
3985
except errors.NotBranchError:
3986
return LocationStack(directory)
3988
def _quote_multiline(self, value):
3990
value = '"""' + value + '"""'
3993
def _show_value(self, name, directory, scope):
3994
conf = self._get_stack(directory, scope)
3995
value = conf.get(name, expand=True, convert=False)
3996
if value is not None:
3997
# Quote the value appropriately
3998
value = self._quote_multiline(value)
3999
self.outf.write('%s\n' % (value,))
4001
raise NoSuchConfigOption(name)
4003
def _show_matching_options(self, name, directory, scope):
4004
name = lazy_regex.lazy_compile(name)
4005
# We want any error in the regexp to be raised *now* so we need to
4006
# avoid the delay introduced by the lazy regexp. But, we still do
4007
# want the nicer errors raised by lazy_regex.
4008
name._compile_and_collapse()
4011
conf = self._get_stack(directory, scope)
4012
for store, section in conf.iter_sections():
4013
for oname in section.iter_option_names():
4014
if name.search(oname):
4015
if cur_store_id != store.id:
4016
# Explain where the options are defined
4017
self.outf.write('%s:\n' % (store.id,))
4018
cur_store_id = store.id
4020
if (section.id is not None and cur_section != section.id):
4021
# Display the section id as it appears in the store
4022
# (None doesn't appear by definition)
4023
self.outf.write(' [%s]\n' % (section.id,))
4024
cur_section = section.id
4025
value = section.get(oname, expand=False)
4026
# Quote the value appropriately
4027
value = self._quote_multiline(value)
4028
self.outf.write(' %s = %s\n' % (oname, value))
4030
def _set_config_option(self, name, value, directory, scope):
4031
conf = self._get_stack(directory, scope, write_access=True)
4032
conf.set(name, value)
4033
# Explicitly save the changes
4034
conf.store.save_changes()
4036
def _remove_config_option(self, name, directory, scope):
4038
raise errors.BzrCommandError(
4039
'--remove expects an option to remove.')
4040
conf = self._get_stack(directory, scope, write_access=True)
4043
# Explicitly save the changes
4044
conf.store.save_changes()
4046
raise NoSuchConfigOption(name)
4051
# We need adapters that can build a Store or a Stack in a test context. Test
4052
# classes, based on TestCaseWithTransport, can use the registry to parametrize
4053
# themselves. The builder will receive a test instance and should return a
4054
# ready-to-use store or stack. Plugins that define new store/stacks can also
4055
# register themselves here to be tested against the tests defined in
4056
# breezy.tests.test_config. Note that the builder can be called multiple times
4057
# for the same test.
4059
# The registered object should be a callable receiving a test instance
4060
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Store
4062
test_store_builder_registry = registry.Registry()
4064
# The registered object should be a callable receiving a test instance
4065
# parameter (inheriting from tests.TestCaseWithTransport) and returning a Stack
4067
test_stack_builder_registry = registry.Registry()