2262
2339
The option *values* are stored in config files and found in sections.
2264
2341
Here we define various properties about the option itself, its default
2265
value, in which config files it can be stored, etc (TBC).
2342
value, how to convert it from stores, what to do when invalid values are
2343
encoutered, in which config files it can be stored.
2268
def __init__(self, name, default=None):
2346
def __init__(self, name, default=None, default_from_env=None,
2347
help=None, from_unicode=None, invalid=None):
2348
"""Build an option definition.
2350
:param name: the name used to refer to the option.
2352
:param default: the default value to use when none exist in the config
2353
stores. This is either a string that ``from_unicode`` will convert
2354
into the proper type, a callable returning a unicode string so that
2355
``from_unicode`` can be used on the return value, or a python
2356
object that can be stringified (so only the empty list is supported
2359
:param default_from_env: A list of environment variables which can
2360
provide a default value. 'default' will be used only if none of the
2361
variables specified here are set in the environment.
2363
:param help: a doc string to explain the option to the user.
2365
:param from_unicode: a callable to convert the unicode string
2366
representing the option value in a store. This is not called for
2369
:param invalid: the action to be taken when an invalid value is
2370
encountered in a store. This is called only when from_unicode is
2371
invoked to convert a string and returns None or raise ValueError or
2372
TypeError. Accepted values are: None (ignore invalid values),
2373
'warning' (emit a warning), 'error' (emit an error message and
2376
if default_from_env is None:
2377
default_from_env = []
2269
2378
self.name = name
2270
self.default = default
2379
# Convert the default value to a unicode string so all values are
2380
# strings internally before conversion (via from_unicode) is attempted.
2383
elif isinstance(default, list):
2384
# Only the empty list is supported
2386
raise AssertionError(
2387
'Only empty lists are supported as default values')
2389
elif isinstance(default, (str, unicode, bool, int, float)):
2390
# Rely on python to convert strings, booleans and integers
2391
self.default = u'%s' % (default,)
2392
elif callable(default):
2393
self.default = default
2395
# other python objects are not expected
2396
raise AssertionError('%r is not supported as a default value'
2398
self.default_from_env = default_from_env
2400
self.from_unicode = from_unicode
2401
if invalid and invalid not in ('warning', 'error'):
2402
raise AssertionError("%s not supported for 'invalid'" % (invalid,))
2403
self.invalid = invalid
2405
def convert_from_unicode(self, unicode_value):
2406
if self.from_unicode is None or unicode_value is None:
2407
# Don't convert or nothing to convert
2408
return unicode_value
2410
converted = self.from_unicode(unicode_value)
2411
except (ValueError, TypeError):
2412
# Invalid values are ignored
2414
if converted is None and self.invalid is not None:
2415
# The conversion failed
2416
if self.invalid == 'warning':
2417
trace.warning('Value "%s" is not valid for "%s"',
2418
unicode_value, self.name)
2419
elif self.invalid == 'error':
2420
raise errors.ConfigOptionValueError(self.name, unicode_value)
2272
2423
def get_default(self):
2278
option_registry = registry.Registry()
2281
option_registry.register(
2282
'editor', Option('editor'),
2283
help='The command called to launch an editor to enter a message.')
2425
for var in self.default_from_env:
2427
# If the env variable is defined, its value is the default one
2428
value = os.environ[var].decode(osutils.get_user_encoding())
2433
# Otherwise, fallback to the value defined at registration
2434
if callable(self.default):
2435
value = self.default()
2436
if not isinstance(value, unicode):
2437
raise AssertionError(
2438
'Callable default values should be unicode')
2440
value = self.default
2443
def get_help_text(self, additional_see_also=None, plain=True):
2445
from bzrlib import help_topics
2446
result += help_topics._format_see_also(additional_see_also)
2448
result = help_topics.help_as_plain_text(result)
2452
# Predefined converters to get proper values from store
2454
def bool_from_store(unicode_str):
2455
return ui.bool_from_string(unicode_str)
2458
def int_from_store(unicode_str):
2459
return int(unicode_str)
2462
_unit_sfxs = dict(K=10**3, M=10**6, G=10**9)
2464
def int_SI_from_store(unicode_str):
2465
"""Convert a human readable size in SI units, e.g 10MB into an integer.
2467
Accepted suffixes are K,M,G. It is case-insensitive and may be followed
2468
by a trailing b (i.e. Kb, MB). This is intended to be practical and not
2471
:return Integer, expanded to its base-10 value if a proper SI unit is
2472
found, None otherwise.
2474
regexp = "^(\d+)(([" + ''.join(_unit_sfxs) + "])b?)?$"
2475
p = re.compile(regexp, re.IGNORECASE)
2476
m = p.match(unicode_str)
2479
val, _, unit = m.groups()
2483
coeff = _unit_sfxs[unit.upper()]
2485
raise ValueError(gettext('{0} is not an SI unit.').format(unit))
2490
def float_from_store(unicode_str):
2491
return float(unicode_str)
2494
# Use a an empty dict to initialize an empty configobj avoiding all
2495
# parsing and encoding checks
2496
_list_converter_config = configobj.ConfigObj(
2497
{}, encoding='utf-8', list_values=True, interpolation=False)
2500
def list_from_store(unicode_str):
2501
if not isinstance(unicode_str, basestring):
2503
# Now inject our string directly as unicode. All callers got their value
2504
# from configobj, so values that need to be quoted are already properly
2506
_list_converter_config.reset()
2507
_list_converter_config._parse([u"list=%s" % (unicode_str,)])
2508
maybe_list = _list_converter_config['list']
2509
# ConfigObj return '' instead of u''. Use 'str' below to catch all cases.
2510
if isinstance(maybe_list, basestring):
2512
# A single value, most probably the user forgot (or didn't care to
2513
# add) the final ','
2516
# The empty string, convert to empty list
2519
# We rely on ConfigObj providing us with a list already
2524
class OptionRegistry(registry.Registry):
2525
"""Register config options by their name.
2527
This overrides ``registry.Registry`` to simplify registration by acquiring
2528
some information from the option object itself.
2531
def register(self, option):
2532
"""Register a new option to its name.
2534
:param option: The option to register. Its name is used as the key.
2536
super(OptionRegistry, self).register(option.name, option,
2539
def register_lazy(self, key, module_name, member_name):
2540
"""Register a new option to be loaded on request.
2542
:param key: the key to request the option later. Since the registration
2543
is lazy, it should be provided and match the option name.
2545
:param module_name: the python path to the module. Such as 'os.path'.
2547
:param member_name: the member of the module to return. If empty or
2548
None, get() will return the module itself.
2550
super(OptionRegistry, self).register_lazy(key,
2551
module_name, member_name)
2553
def get_help(self, key=None):
2554
"""Get the help text associated with the given key"""
2555
option = self.get(key)
2556
the_help = option.help
2557
if callable(the_help):
2558
return the_help(self, key)
2562
option_registry = OptionRegistry()
2565
# Registered options in lexicographical order
2567
option_registry.register(
2568
Option('append_revisions_only',
2569
default=None, from_unicode=bool_from_store, invalid='warning',
2571
Whether to only append revisions to the mainline.
2573
If this is set to true, then it is not possible to change the
2574
existing mainline of the branch.
2576
option_registry.register(
2577
Option('acceptable_keys',
2578
default=None, from_unicode=list_from_store,
2580
List of GPG key patterns which are acceptable for verification.
2582
option_registry.register(
2583
Option('add.maximum_file_size',
2584
default=u'20MB', from_unicode=int_SI_from_store,
2586
Size above which files should be added manually.
2588
Files below this size are added automatically when using ``bzr add`` without
2591
A negative value means disable the size check.
2593
option_registry.register(
2594
Option('bzr.workingtree.worth_saving_limit', default=10,
2595
from_unicode=int_from_store, invalid='warning',
2597
How many changes before saving the dirstate.
2599
-1 means that we will never rewrite the dirstate file for only
2600
stat-cache changes. Regardless of this setting, we will always rewrite
2601
the dirstate file if a file is added/removed/renamed/etc. This flag only
2602
affects the behavior of updating the dirstate file after we notice that
2603
a file has been touched.
2605
option_registry.register(
2606
Option('check_signatures', default=CHECK_IF_POSSIBLE,
2607
from_unicode=signature_policy_from_unicode,
2609
GPG checking policy.
2611
Possible values: require, ignore, check-available (default)
2613
this option will control whether bzr will require good gpg
2614
signatures, ignore them, or check them if they are
2617
option_registry.register(
2618
Option('create_signatures', default=SIGN_WHEN_REQUIRED,
2619
from_unicode=signing_policy_from_unicode,
2623
Possible values: always, never, when-required (default)
2625
This option controls whether bzr will always create
2626
gpg signatures or not on commits.
2628
option_registry.register(
2629
Option('dirstate.fdatasync', default=True,
2630
from_unicode=bool_from_store,
2632
Flush dirstate changes onto physical disk?
2634
If true (default), working tree metadata changes are flushed through the
2635
OS buffers to physical disk. This is somewhat slower, but means data
2636
should not be lost if the machine crashes. See also repository.fdatasync.
2638
option_registry.register(
2639
Option('debug_flags', default=[], from_unicode=list_from_store,
2640
help='Debug flags to activate.'))
2641
option_registry.register(
2642
Option('default_format', default='2a',
2643
help='Format used when creating branches.'))
2644
option_registry.register(
2645
Option('dpush_strict', default=None,
2646
from_unicode=bool_from_store,
2648
The default value for ``dpush --strict``.
2650
If present, defines the ``--strict`` option default value for checking
2651
uncommitted changes before pushing into a different VCS without any
2652
custom bzr metadata.
2654
option_registry.register(
2656
help='The command called to launch an editor to enter a message.'))
2657
option_registry.register(
2658
Option('email', default=default_email,
2659
from_unicode=email_from_store,
2660
help='The users identity'))
2661
option_registry.register(
2662
Option('gpg_signing_command',
2665
Program to use use for creating signatures.
2667
This should support at least the -u and --clearsign options.
2669
option_registry.register(
2670
Option('gpg_signing_key',
2673
GPG key to use for signing.
2675
This defaults to the first key associated with the users email.
2677
option_registry.register(
2678
Option('ignore_missing_extensions', default=False,
2679
from_unicode=bool_from_store,
2681
Control the missing extensions warning display.
2683
The warning will not be emitted if set to True.
2685
option_registry.register(
2687
help='Language to translate messages into.'))
2688
option_registry.register(
2689
Option('locks.steal_dead', default=False, from_unicode=bool_from_store,
2691
Steal locks that appears to be dead.
2693
If set to True, bzr will check if a lock is supposed to be held by an
2694
active process from the same user on the same machine. If the user and
2695
machine match, but no process with the given PID is active, then bzr
2696
will automatically break the stale lock, and create a new lock for
2698
Otherwise, bzr will prompt as normal to break the lock.
2700
option_registry.register(
2701
Option('log_format', default='long',
2703
Log format to use when displaying revisions.
2705
Standard log formats are ``long``, ``short`` and ``line``. Additional formats
2706
may be provided by plugins.
2708
option_registry.register(
2709
Option('output_encoding',
2710
help= 'Unicode encoding for output'
2711
' (terminal encoding if not specified).'))
2712
option_registry.register(
2713
Option('post_commit', default=None,
2715
Post commit functions.
2717
An ordered list of python functions to call, separated by spaces.
2719
Each function takes branch, rev_id as parameters.
2721
option_registry.register(
2722
Option('push_strict', default=None,
2723
from_unicode=bool_from_store,
2725
The default value for ``push --strict``.
2727
If present, defines the ``--strict`` option default value for checking
2728
uncommitted changes before sending a merge directive.
2730
option_registry.register(
2731
Option('repository.fdatasync', default=True,
2732
from_unicode=bool_from_store,
2734
Flush repository changes onto physical disk?
2736
If true (default), repository changes are flushed through the OS buffers
2737
to physical disk. This is somewhat slower, but means data should not be
2738
lost if the machine crashes. See also dirstate.fdatasync.
2740
option_registry.register_lazy('smtp_server',
2741
'bzrlib.smtp_connection', 'smtp_server')
2742
option_registry.register_lazy('smtp_password',
2743
'bzrlib.smtp_connection', 'smtp_password')
2744
option_registry.register_lazy('smtp_username',
2745
'bzrlib.smtp_connection', 'smtp_username')
2746
option_registry.register(
2747
Option('selftest.timeout',
2749
from_unicode=int_from_store,
2750
help='Abort selftest if one test takes longer than this many seconds',
2753
option_registry.register(
2754
Option('send_strict', default=None,
2755
from_unicode=bool_from_store,
2757
The default value for ``send --strict``.
2759
If present, defines the ``--strict`` option default value for checking
2760
uncommitted changes before pushing.
2763
option_registry.register(
2764
Option('serve.client_timeout',
2765
default=300.0, from_unicode=float_from_store,
2766
help="If we wait for a new request from a client for more than"
2767
" X seconds, consider the client idle, and hangup."))
2286
2770
class Section(object):
2452
2988
out = StringIO()
2453
2989
self._config_obj.write(out)
2454
self.transport.put_bytes(self.file_name, out.getvalue())
2990
self._save_content(out.getvalue())
2455
2991
for hook in ConfigHooks['save']:
2458
def external_url(self):
2459
# FIXME: external_url should really accepts an optional relpath
2460
# parameter (bug #750169) :-/ -- vila 2011-04-04
2461
# The following will do in the interim but maybe we don't want to
2462
# expose a path here but rather a config ID and its associated
2463
# object </hand wawe>.
2464
return urlutils.join(self.transport.external_url(), self.file_name)
2466
2994
def get_sections(self):
2467
2995
"""Get the configobj section in the file order.
2469
:returns: An iterable of (name, dict).
2997
:returns: An iterable of (store, section).
2471
2999
# We need a loaded store
2474
except errors.NoSuchFile:
2475
# If the file doesn't exist, there is no sections
3002
except (errors.NoSuchFile, errors.PermissionDenied):
3003
# If the file can't be read, there is no sections
2477
3005
cobj = self._config_obj
2478
3006
if cobj.scalars:
2479
yield self.readonly_section_class(None, cobj)
3007
yield self, self.readonly_section_class(None, cobj)
2480
3008
for section_name in cobj.sections:
2481
yield self.readonly_section_class(section_name, cobj[section_name])
3010
self.readonly_section_class(section_name,
3011
cobj[section_name]))
2483
def get_mutable_section(self, section_name=None):
3013
def get_mutable_section(self, section_id=None):
2484
3014
# We need a loaded store
2487
3017
except errors.NoSuchFile:
2488
3018
# The file doesn't exist, let's pretend it was empty
2489
3019
self._load_from_string('')
2490
if section_name is None:
3020
if section_id is None:
2491
3021
section = self._config_obj
2493
section = self._config_obj.setdefault(section_name, {})
2494
return self.mutable_section_class(section_name, section)
3023
section = self._config_obj.setdefault(section_id, {})
3024
return self.mutable_section_class(section_id, section)
3027
class TransportIniFileStore(IniFileStore):
3028
"""IniFileStore that loads files from a transport.
3031
def __init__(self, transport, file_name):
3032
"""A Store using a ini file on a Transport
3034
:param transport: The transport object where the config file is located.
3035
:param file_name: The config file basename in the transport directory.
3037
super(TransportIniFileStore, self).__init__()
3038
self.transport = transport
3039
self.file_name = file_name
3041
def _load_content(self):
3043
return self.transport.get_bytes(self.file_name)
3044
except errors.PermissionDenied:
3045
trace.warning("Permission denied while trying to load "
3046
"configuration store %s.", self.external_url())
3049
def _save_content(self, content):
3050
self.transport.put_bytes(self.file_name, content)
3052
def external_url(self):
3053
# FIXME: external_url should really accepts an optional relpath
3054
# parameter (bug #750169) :-/ -- vila 2011-04-04
3055
# The following will do in the interim but maybe we don't want to
3056
# expose a path here but rather a config ID and its associated
3057
# object </hand wawe>.
3058
return urlutils.join(self.transport.external_url(), self.file_name)
2497
3061
# Note that LockableConfigObjStore inherits from ConfigObjStore because we need
2715
3342
option exists or get its value, which in turn may require to discover
2716
3343
in which sections it can be defined. Both of these (section and option
2717
3344
existence) require loading the store (even partially).
3346
:param name: The queried option.
3348
:param expand: Whether options references should be expanded.
3350
:returns: The value of the option.
2719
3352
# FIXME: No caching of options nor sections yet -- vila 20110503
3354
expand = _get_expand_default_value()
2721
3356
# Ensuring lazy loading is achieved by delaying section matching (which
2722
3357
# implies querying the persistent storage) until it can't be avoided
2723
3358
# anymore by using callables to describe (possibly empty) section
2725
for section_or_callable in self.sections_def:
2726
# Each section can expand to multiple ones when a callable is used
2727
if callable(section_or_callable):
2728
sections = section_or_callable()
2730
sections = [section_or_callable]
2731
for section in sections:
3360
for sections in self.sections_def:
3361
for store, section in sections():
2732
3362
value = section.get(name)
2733
3363
if value is not None:
2735
3365
if value is not None:
3367
# If the option is registered, it may provide additional info about
3370
opt = option_registry.get(name)
3374
def expand_and_convert(val):
3375
# This may need to be called twice if the value is None or ends up
3376
# being None during expansion or conversion.
3379
if isinstance(val, basestring):
3380
val = self._expand_options_in_string(val)
3382
trace.warning('Cannot expand "%s":'
3383
' %s does not support option expansion'
3384
% (name, type(val)))
3386
val = opt.convert_from_unicode(val)
3388
value = expand_and_convert(value)
3389
if opt is not None and value is None:
2738
3390
# If the option is registered, it may provide a default value
2740
opt = option_registry.get(name)
2745
value = opt.get_default()
3391
value = opt.get_default()
3392
value = expand_and_convert(value)
2746
3393
for hook in ConfigHooks['get']:
2747
3394
hook(self, name, value)
3397
def expand_options(self, string, env=None):
3398
"""Expand option references in the string in the configuration context.
3400
:param string: The string containing option(s) to expand.
3402
:param env: An option dict defining additional configuration options or
3403
overriding existing ones.
3405
:returns: The expanded string.
3407
return self._expand_options_in_string(string, env)
3409
def _expand_options_in_string(self, string, env=None, _refs=None):
3410
"""Expand options in the string in the configuration context.
3412
:param string: The string to be expanded.
3414
:param env: An option dict defining additional configuration options or
3415
overriding existing ones.
3417
:param _refs: Private list (FIFO) containing the options being expanded
3420
:returns: The expanded string.
3423
# Not much to expand there
3426
# What references are currently resolved (to detect loops)
3429
# We need to iterate until no more refs appear ({{foo}} will need two
3430
# iterations for example).
3435
for is_ref, chunk in iter_option_refs(result):
3437
chunks.append(chunk)
3442
raise errors.OptionExpansionLoop(string, _refs)
3444
value = self._expand_option(name, env, _refs)
3446
raise errors.ExpandingUnknownOption(name, string)
3447
chunks.append(value)
3449
result = ''.join(chunks)
3452
def _expand_option(self, name, env, _refs):
3453
if env is not None and name in env:
3454
# Special case, values provided in env takes precedence over
3458
value = self.get(name, expand=False)
3459
value = self._expand_options_in_string(value, env, _refs)
2750
3462
def _get_mutable_section(self):
2751
3463
"""Get the MutableSection for the Stack.
2753
3465
This is where we guarantee that the mutable section is lazily loaded:
2754
3466
this means we won't load the corresponding store before setting a value
2755
3467
or deleting an option. In practice the store will often be loaded but
2756
this allows helps catching some programming errors.
3468
this helps catching some programming errors.
2758
section = self.store.get_mutable_section(self.mutable_section_name)
3470
section = self.store.get_mutable_section(self.mutable_section_id)
2761
3473
def set(self, name, value):
2800
3518
# Force a write to persistent storage
2801
3519
self.store.save()
3521
def remove(self, name):
3524
super(_CompatibleStack, self).remove(name)
3525
# Force a write to persistent storage
2804
3529
class GlobalStack(_CompatibleStack):
3530
"""Global options only stack.
3532
The following sections are queried:
3534
* command-line overrides,
3536
* the 'DEFAULT' section in bazaar.conf
3538
This stack will use the ``DEFAULT`` section in bazaar.conf as its
2806
3542
def __init__(self):
2808
3543
gstore = GlobalStore()
2809
super(GlobalStack, self).__init__([gstore.get_sections], gstore)
3544
super(GlobalStack, self).__init__(
3545
[self._get_overrides,
3546
NameMatcher(gstore, 'DEFAULT').get_sections],
3547
gstore, mutable_section_id='DEFAULT')
2812
3550
class LocationStack(_CompatibleStack):
3551
"""Per-location options falling back to global options stack.
3554
The following sections are queried:
3556
* command-line overrides,
3558
* the sections matching ``location`` in ``locations.conf``, the order being
3559
defined by the number of path components in the section glob, higher
3560
numbers first (from most specific section to most generic).
3562
* the 'DEFAULT' section in bazaar.conf
3564
This stack will use the ``location`` section in locations.conf as its
2814
3568
def __init__(self, location):
3569
"""Make a new stack for a location and global configuration.
3571
:param location: A URL prefix to """
2815
3572
lstore = LocationStore()
2816
matcher = LocationMatcher(lstore, location)
3573
if location.startswith('file://'):
3574
location = urlutils.local_path_from_url(location)
2817
3575
gstore = GlobalStore()
2818
3576
super(LocationStack, self).__init__(
2819
[matcher.get_sections, gstore.get_sections], lstore)
3577
[self._get_overrides,
3578
LocationMatcher(lstore, location).get_sections,
3579
NameMatcher(gstore, 'DEFAULT').get_sections],
3580
lstore, mutable_section_id=location)
2821
3583
class BranchStack(_CompatibleStack):
3584
"""Per-location options falling back to branch then global options stack.
3586
The following sections are queried:
3588
* command-line overrides,
3590
* the sections matching ``location`` in ``locations.conf``, the order being
3591
defined by the number of path components in the section glob, higher
3592
numbers first (from most specific section to most generic),
3594
* the no-name section in branch.conf,
3596
* the ``DEFAULT`` section in ``bazaar.conf``.
3598
This stack will use the no-name section in ``branch.conf`` as its
2823
3602
def __init__(self, branch):
2824
bstore = BranchStore(branch)
2825
3603
lstore = LocationStore()
2826
matcher = LocationMatcher(lstore, branch.base)
3604
bstore = branch._get_config_store()
2827
3605
gstore = GlobalStore()
2828
3606
super(BranchStack, self).__init__(
2829
[matcher.get_sections, bstore.get_sections, gstore.get_sections],
2831
self.branch = branch
3607
[self._get_overrides,
3608
LocationMatcher(lstore, branch.base).get_sections,
3609
NameMatcher(bstore, None).get_sections,
3610
NameMatcher(gstore, 'DEFAULT').get_sections],
3612
self.branch = branch
3615
class RemoteControlStack(_CompatibleStack):
3616
"""Remote control-only options stack."""
3618
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3619
# with the stack used for remote bzr dirs. RemoteControlStack only uses
3620
# control.conf and is used only for stack options.
3622
def __init__(self, bzrdir):
3623
cstore = bzrdir._get_config_store()
3624
super(RemoteControlStack, self).__init__(
3625
[NameMatcher(cstore, None).get_sections],
3627
self.bzrdir = bzrdir
3630
class RemoteBranchStack(_CompatibleStack):
3631
"""Remote branch-only options stack."""
3633
# FIXME 2011-11-22 JRV This should probably be renamed to avoid confusion
3634
# with the stack used for remote branches. RemoteBranchStack only uses
3635
# branch.conf and is used only for the stack options.
3637
def __init__(self, branch):
3638
bstore = branch._get_config_store()
3639
super(RemoteBranchStack, self).__init__(
3640
[NameMatcher(bstore, None).get_sections],
3642
self.branch = branch
3644
# Use a an empty dict to initialize an empty configobj avoiding all
3645
# parsing and encoding checks
3646
_quoting_config = configobj.ConfigObj(
3647
{}, encoding='utf-8', interpolation=False)
2834
3649
class cmd_config(commands.Command):
2835
3650
__doc__ = """Display, set or remove a configuration option.