730 lines
28 KiB
Python
730 lines
28 KiB
Python
# Copyright 2012 SINA Corporation
|
|
# Copyright 2014 Cisco Systems, Inc.
|
|
# All Rights Reserved.
|
|
# Copyright 2014 Red Hat, Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
"""Sample configuration generator
|
|
|
|
Tool for generating a sample configuration file. See
|
|
../doc/source/generator.rst for details.
|
|
|
|
.. versionadded:: 1.4
|
|
"""
|
|
|
|
import collections
|
|
import copy
|
|
import logging
|
|
import operator
|
|
import sys
|
|
import textwrap
|
|
|
|
import json
|
|
import pkg_resources
|
|
import six
|
|
import yaml
|
|
|
|
|
|
from oslo_config import cfg
|
|
import stevedore.named # noqa
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
UPPER_CASE_GROUP_NAMES = ['DEFAULT']
|
|
|
|
_generator_opts = [
|
|
cfg.StrOpt(
|
|
'output-file',
|
|
help='Path of the file to write to. Defaults to stdout.'),
|
|
cfg.IntOpt(
|
|
'wrap-width',
|
|
default=70,
|
|
help='The maximum length of help lines.'),
|
|
cfg.MultiStrOpt(
|
|
'namespace',
|
|
required=True,
|
|
help='Option namespace under "oslo.config.opts" in which to query '
|
|
'for options.'),
|
|
cfg.BoolOpt(
|
|
'minimal',
|
|
default=False,
|
|
help='Generate a minimal required configuration.'),
|
|
cfg.BoolOpt(
|
|
'summarize',
|
|
default=False,
|
|
help='Only output summaries of help text to config files. Retain '
|
|
'longer help text for Sphinx documents.'),
|
|
cfg.StrOpt(
|
|
'format',
|
|
help='Desired format for the output. "ini" is the only one which can '
|
|
'be used directly with oslo.config. "json" and "yaml" are '
|
|
'intended for third-party tools that want to write config files '
|
|
'based on the sample config data.',
|
|
default='ini',
|
|
choices=['ini', 'json', 'yaml'],
|
|
dest='format_'),
|
|
]
|
|
|
|
|
|
def register_cli_opts(conf):
|
|
"""Register the formatter's CLI options with a ConfigOpts instance.
|
|
|
|
Note, this must be done before the ConfigOpts instance is called to parse
|
|
the configuration.
|
|
|
|
:param conf: a ConfigOpts instance
|
|
:raises: DuplicateOptError, ArgsAlreadyParsedError
|
|
"""
|
|
conf.register_cli_opts(_generator_opts)
|
|
|
|
|
|
def _format_defaults(opt):
|
|
"Return a list of formatted default values."
|
|
if isinstance(opt, cfg.MultiStrOpt):
|
|
if opt.sample_default is not None:
|
|
defaults = opt.sample_default
|
|
elif not opt.default:
|
|
defaults = ['']
|
|
else:
|
|
defaults = opt.default
|
|
else:
|
|
if opt.sample_default is not None:
|
|
default_str = str(opt.sample_default)
|
|
elif opt.default is None:
|
|
default_str = '<None>'
|
|
elif (isinstance(opt, (cfg.StrOpt, cfg.IPOpt,
|
|
cfg.HostnameOpt, cfg.HostAddressOpt,
|
|
cfg.URIOpt))):
|
|
default_str = opt.default
|
|
elif isinstance(opt, cfg.BoolOpt):
|
|
default_str = str(opt.default).lower()
|
|
elif isinstance(opt, (cfg.IntOpt, cfg.FloatOpt,
|
|
cfg.PortOpt)):
|
|
default_str = str(opt.default)
|
|
elif isinstance(opt, (cfg.ListOpt, cfg._ConfigFileOpt,
|
|
cfg._ConfigDirOpt)):
|
|
default_str = ','.join(opt.default)
|
|
elif isinstance(opt, cfg.DictOpt):
|
|
sorted_items = sorted(opt.default.items(),
|
|
key=operator.itemgetter(0))
|
|
default_str = ','.join(['%s:%s' % i for i in sorted_items])
|
|
else:
|
|
LOG.warning('Unknown option type: %s', repr(opt))
|
|
default_str = str(opt.default)
|
|
defaults = [default_str]
|
|
|
|
results = []
|
|
for default_str in defaults:
|
|
if default_str.strip() != default_str:
|
|
default_str = '"%s"' % default_str
|
|
results.append(default_str)
|
|
return results
|
|
|
|
|
|
_TYPE_NAMES = {
|
|
str: 'string value',
|
|
int: 'integer value',
|
|
float: 'floating point value',
|
|
}
|
|
|
|
|
|
def _format_type_name(opt_type):
|
|
"""Format the type name to use in describing an option"""
|
|
try:
|
|
return opt_type.type_name
|
|
except AttributeError: # nosec
|
|
pass
|
|
|
|
try:
|
|
return _TYPE_NAMES[opt_type]
|
|
except KeyError: # nosec
|
|
pass
|
|
|
|
return 'unknown value'
|
|
|
|
|
|
class _OptFormatter(object):
|
|
|
|
"""Format configuration option descriptions to a file."""
|
|
|
|
def __init__(self, output_file=None, wrap_width=70):
|
|
"""Construct an OptFormatter object.
|
|
|
|
:param output_file: a writeable file object
|
|
:param wrap_width: The maximum length of help lines, 0 to not wrap
|
|
"""
|
|
self.output_file = output_file or sys.stdout
|
|
self.wrap_width = wrap_width
|
|
|
|
def _format_help(self, help_text):
|
|
"""Format the help for a group or option to the output file.
|
|
|
|
:param help_text: The text of the help string
|
|
"""
|
|
if self.wrap_width is not None and self.wrap_width > 0:
|
|
wrapped = ""
|
|
for line in help_text.splitlines():
|
|
text = "\n".join(textwrap.wrap(line, self.wrap_width,
|
|
initial_indent='# ',
|
|
subsequent_indent='# ',
|
|
break_long_words=False,
|
|
replace_whitespace=False))
|
|
wrapped += "#" if text == "" else text
|
|
wrapped += "\n"
|
|
lines = [wrapped]
|
|
else:
|
|
lines = ['# ' + help_text + '\n']
|
|
return lines
|
|
|
|
def _get_choice_text(self, choice):
|
|
if choice is None:
|
|
return '<None>'
|
|
elif choice == '':
|
|
return "''"
|
|
return six.text_type(choice)
|
|
|
|
def format_group(self, group_or_groupname):
|
|
"""Format the description of a group header to the output file
|
|
|
|
:param group_or_groupname: a cfg.OptGroup instance or a name of group
|
|
:returns: a formatted group description string
|
|
"""
|
|
if isinstance(group_or_groupname, cfg.OptGroup):
|
|
group = group_or_groupname
|
|
lines = ['[%s]\n' % group.name]
|
|
if group.help:
|
|
lines += self._format_help(group.help)
|
|
else:
|
|
groupname = group_or_groupname
|
|
lines = ['[%s]\n' % groupname]
|
|
self.writelines(lines)
|
|
|
|
def format(self, opt, group_name, minimal=False, summarize=False):
|
|
"""Format a description of an option to the output file.
|
|
|
|
:param opt: a cfg.Opt instance
|
|
:param group_name: name of the group to which the opt is assigned
|
|
:param minimal: enable option by default, marking it as required
|
|
:param summarize: output a summarized description of the opt
|
|
:returns: a formatted opt description string
|
|
"""
|
|
if not opt.help:
|
|
LOG.warning('"%s" is missing a help string', opt.dest)
|
|
|
|
opt_type = _format_type_name(opt.type)
|
|
opt_prefix = ''
|
|
if (opt.deprecated_for_removal and
|
|
not opt.help.startswith('DEPRECATED')):
|
|
opt_prefix = 'DEPRECATED: '
|
|
|
|
if opt.help:
|
|
# an empty line signifies a new paragraph. We only want the
|
|
# summary line
|
|
if summarize:
|
|
_split = opt.help.split('\n\n')
|
|
opt_help = _split[0].rstrip(':').rstrip('.')
|
|
if len(_split) > 1:
|
|
opt_help += '. For more information, refer to the '
|
|
opt_help += 'documentation.'
|
|
else:
|
|
opt_help = opt.help
|
|
|
|
help_text = u'%s%s (%s)' % (opt_prefix,
|
|
opt_help,
|
|
opt_type)
|
|
else:
|
|
help_text = u'(%s)' % opt_type
|
|
lines = self._format_help(help_text)
|
|
|
|
if getattr(opt.type, 'min', None) is not None:
|
|
lines.append('# Minimum value: %d\n' % opt.type.min)
|
|
|
|
if getattr(opt.type, 'max', None) is not None:
|
|
lines.append('# Maximum value: %d\n' % opt.type.max)
|
|
|
|
if getattr(opt.type, 'choices', None):
|
|
choices_text = ', '.join([self._get_choice_text(choice)
|
|
for choice in opt.type.choices])
|
|
lines.append('# Allowed values: %s\n' % choices_text)
|
|
|
|
try:
|
|
if opt.mutable:
|
|
lines.append(
|
|
'# Note: This option can be changed without restarting.\n'
|
|
)
|
|
except AttributeError as err:
|
|
# NOTE(dhellmann): keystoneauth defines its own Opt class,
|
|
# and neutron (at least) returns instances of those
|
|
# classes instead of oslo_config Opt instances. The new
|
|
# mutable attribute is the first property where the API
|
|
# isn't supported in the external class, so we can use
|
|
# this failure to emit a warning. See
|
|
# https://bugs.launchpad.net/keystoneauth/+bug/1548433 for
|
|
# more details.
|
|
import warnings
|
|
if not isinstance(opt, cfg.Opt):
|
|
warnings.warn(
|
|
'Incompatible option class for %s (%r): %s' %
|
|
(opt.dest, opt.__class__, err),
|
|
)
|
|
else:
|
|
warnings.warn('Failed to fully format sample for %s: %s' %
|
|
(opt.dest, err))
|
|
|
|
for d in opt.deprecated_opts:
|
|
# NOTE(bnemec): opt names with a - are not valid in a config file,
|
|
# but it is possible to add a DeprecatedOpt with a - name. We
|
|
# want to ignore those as they won't work anyway.
|
|
if d.name and '-' not in d.name:
|
|
lines.append('# Deprecated group/name - [%s]/%s\n' %
|
|
(d.group or group_name, d.name or opt.dest))
|
|
|
|
if opt.deprecated_for_removal:
|
|
if opt.deprecated_since:
|
|
lines.append(
|
|
'# This option is deprecated for removal since %s.\n' % (
|
|
opt.deprecated_since))
|
|
else:
|
|
lines.append(
|
|
'# This option is deprecated for removal.\n')
|
|
lines.append(
|
|
'# Its value may be silently ignored in the future.\n')
|
|
if opt.deprecated_reason:
|
|
lines.extend(
|
|
self._format_help('Reason: ' + opt.deprecated_reason))
|
|
|
|
if opt.advanced:
|
|
lines.append(
|
|
'# Advanced Option: intended for advanced users and not used\n'
|
|
'# by the majority of users, and might have a significant\n'
|
|
'# effect on stability and/or performance.\n'
|
|
)
|
|
|
|
if hasattr(opt.type, 'format_defaults'):
|
|
defaults = opt.type.format_defaults(opt.default,
|
|
opt.sample_default)
|
|
else:
|
|
LOG.debug(
|
|
"The type for option %(name)s which is %(type)s is not a "
|
|
"subclass of types.ConfigType and doesn't provide a "
|
|
"'format_defaults' method. A default formatter is not "
|
|
"available so the best-effort formatter will be used.",
|
|
{'type': opt.type, 'name': opt.name})
|
|
defaults = _format_defaults(opt)
|
|
for default_str in defaults:
|
|
if default_str:
|
|
default_str = ' ' + default_str.replace('\n', '\n# ')
|
|
if minimal:
|
|
lines.append('%s =%s\n' % (opt.dest, default_str))
|
|
else:
|
|
lines.append('#%s =%s\n' % (opt.dest, default_str))
|
|
|
|
self.writelines(lines)
|
|
|
|
def write(self, s):
|
|
"""Write an arbitrary string to the output file.
|
|
|
|
:param s: an arbitrary string
|
|
"""
|
|
self.output_file.write(s)
|
|
|
|
def writelines(self, l):
|
|
"""Write an arbitrary sequence of strings to the output file.
|
|
|
|
:param l: a list of arbitrary strings
|
|
"""
|
|
self.output_file.writelines(l)
|
|
|
|
|
|
def _cleanup_opts(read_opts):
|
|
"""Cleanup duplicate options in namespace groups
|
|
|
|
Return a structure which removes duplicate options from a namespace group.
|
|
NOTE:(rbradfor) This does not remove duplicated options from repeating
|
|
groups in different namespaces:
|
|
|
|
:param read_opts: a list (namespace, [(group, [opt_1, opt_2])]) tuples
|
|
:returns: a list of (namespace, [(group, [opt_1, opt_2])]) tuples
|
|
"""
|
|
|
|
# OrderedDict is used specifically in the three levels to maintain the
|
|
# source order of namespace/group/opt values
|
|
clean = collections.OrderedDict()
|
|
for namespace, listing in read_opts:
|
|
if namespace not in clean:
|
|
clean[namespace] = collections.OrderedDict()
|
|
for group, opts in listing:
|
|
# NOTE: Normalize group names to lowe-case except those defined in
|
|
# UPPER_CASE_GROUP_NAMES
|
|
if group:
|
|
group_name = getattr(group, 'name', str(group))
|
|
if group_name.upper() in UPPER_CASE_GROUP_NAMES:
|
|
normalized_gn = group_name.upper()
|
|
else:
|
|
normalized_gn = group_name.lower()
|
|
if normalized_gn != group_name:
|
|
LOG.warning('normalizing group name %r to %r', group_name,
|
|
normalized_gn)
|
|
if hasattr(group, 'name'):
|
|
group.name = normalized_gn
|
|
else:
|
|
group = normalized_gn
|
|
|
|
if group not in clean[namespace]:
|
|
clean[namespace][group] = collections.OrderedDict()
|
|
for opt in opts:
|
|
clean[namespace][group][opt.dest] = opt
|
|
|
|
# recreate the list of (namespace, [(group, [opt_1, opt_2])]) tuples
|
|
# from the cleaned structure.
|
|
cleaned_opts = [
|
|
(namespace, [(g, list(clean[namespace][g].values()))
|
|
for g in clean[namespace]])
|
|
for namespace in clean
|
|
]
|
|
|
|
return cleaned_opts
|
|
|
|
|
|
def _get_raw_opts_loaders(namespaces):
|
|
"""List the options available via the given namespaces.
|
|
|
|
:param namespaces: a list of namespaces registered under 'oslo.config.opts'
|
|
:returns: a list of (namespace, [(group, [opt_1, opt_2])]) tuples
|
|
"""
|
|
mgr = stevedore.named.NamedExtensionManager(
|
|
'oslo.config.opts',
|
|
names=namespaces,
|
|
on_load_failure_callback=on_load_failure_callback,
|
|
invoke_on_load=False)
|
|
return [(e.name, e.plugin) for e in mgr]
|
|
|
|
|
|
def _get_driver_opts_loaders(namespaces, driver_option_name):
|
|
mgr = stevedore.named.NamedExtensionManager(
|
|
namespace='oslo.config.opts.' + driver_option_name,
|
|
names=namespaces,
|
|
on_load_failure_callback=on_load_failure_callback,
|
|
invoke_on_load=False)
|
|
return [(e.name, e.plugin) for e in mgr]
|
|
|
|
|
|
def _get_driver_opts(driver_option_name, namespaces):
|
|
"""List the options available from plugins for drivers based on the option.
|
|
|
|
:param driver_option_name: The name of the option controlling the
|
|
driver options.
|
|
:param namespaces: a list of namespaces registered under
|
|
'oslo.config.opts.' + driver_option_name
|
|
:returns: a dict mapping driver name to option list
|
|
|
|
"""
|
|
all_opts = {}
|
|
loaders = _get_driver_opts_loaders(namespaces, driver_option_name)
|
|
for plugin_name, loader in loaders:
|
|
for driver_name, option_list in loader().items():
|
|
all_opts.setdefault(driver_name, []).extend(option_list)
|
|
return all_opts
|
|
|
|
|
|
def _get_opt_default_updaters(namespaces):
|
|
mgr = stevedore.named.NamedExtensionManager(
|
|
'oslo.config.opts.defaults',
|
|
names=namespaces,
|
|
warn_on_missing_entrypoint=False,
|
|
on_load_failure_callback=on_load_failure_callback,
|
|
invoke_on_load=False)
|
|
return [ep.plugin for ep in mgr]
|
|
|
|
|
|
def _update_defaults(namespaces):
|
|
"Let application hooks update defaults inside libraries."
|
|
for update in _get_opt_default_updaters(namespaces):
|
|
update()
|
|
|
|
|
|
def _list_opts(namespaces):
|
|
"""List the options available via the given namespaces.
|
|
|
|
Duplicate options from a namespace are removed.
|
|
|
|
:param namespaces: a list of namespaces registered under 'oslo.config.opts'
|
|
:returns: a list of (namespace, [(group, [opt_1, opt_2])]) tuples
|
|
"""
|
|
# Load the functions to get the options.
|
|
loaders = _get_raw_opts_loaders(namespaces)
|
|
# Update defaults, which might change global settings in library
|
|
# modules.
|
|
_update_defaults(namespaces)
|
|
# Ask for the option definitions. At this point any global default
|
|
# changes made by the updaters should be in effect.
|
|
response = []
|
|
for namespace, loader in loaders:
|
|
# The loaders return iterables for the group opts, and we need
|
|
# to extend them, so build a list.
|
|
namespace_values = []
|
|
# Look through the groups and find any that need drivers so we
|
|
# can load those extra options.
|
|
for group, group_opts in loader():
|
|
# group_opts is an iterable but we are going to extend it
|
|
# so convert it to a list.
|
|
group_opts = list(group_opts)
|
|
if isinstance(group, cfg.OptGroup):
|
|
if group.driver_option:
|
|
# Load the options for all of the known drivers.
|
|
driver_opts = _get_driver_opts(
|
|
group.driver_option,
|
|
namespaces,
|
|
)
|
|
# Save the list of names of options for each
|
|
# driver in the group for use later. Add the
|
|
# options to the group_opts list so they are
|
|
# processed along with the static options in that
|
|
# group.
|
|
driver_opt_names = {}
|
|
for driver_name, opts in sorted(driver_opts.items()):
|
|
# Multiple plugins may add values to the same
|
|
# driver name, so combine the lists we do
|
|
# find.
|
|
driver_opt_names.setdefault(driver_name, []).extend(
|
|
o.name for o in opts)
|
|
group_opts.extend(opts)
|
|
group._save_driver_opts(driver_opt_names)
|
|
namespace_values.append((group, group_opts))
|
|
response.append((namespace, namespace_values))
|
|
return _cleanup_opts(response)
|
|
|
|
|
|
def on_load_failure_callback(*args, **kwargs):
|
|
raise
|
|
|
|
|
|
def _output_opts(f, group, group_data, minimal=False, summarize=False):
|
|
f.format_group(group_data['object'] or group)
|
|
for (namespace, opts) in sorted(group_data['namespaces'],
|
|
key=operator.itemgetter(0)):
|
|
f.write('\n#\n# From %s\n#\n' % namespace)
|
|
for opt in sorted(opts, key=operator.attrgetter('advanced')):
|
|
try:
|
|
if minimal and not opt.required:
|
|
pass
|
|
else:
|
|
f.write('\n')
|
|
f.format(opt, group, minimal, summarize)
|
|
except Exception as err:
|
|
f.write('# Warning: Failed to format sample for %s\n' %
|
|
(opt.dest,))
|
|
f.write('# %s\n' % (err,))
|
|
|
|
|
|
def _get_groups(conf_ns):
|
|
"""Invert a list of groups by namespace into a dict by group name.
|
|
|
|
:param conf_ns: a list of (namespace, [(<group>, [opt_1, opt_2])]) tuples,
|
|
such as returned by _list_opts.
|
|
:returns: {<group_name>, {'object': <group_object>,
|
|
'namespaces': [(<namespace>, <opts>)]}}
|
|
|
|
<group> may be a string or a group object.
|
|
<group_name> is always a string.
|
|
<group_object> will only be set if <group> was a group object in at least
|
|
one namespace.
|
|
|
|
Keying by group_name avoids adding duplicate group names in case a group is
|
|
added as both an OptGroup and as a str, but still makes the additional
|
|
OptGroup data available to the output code when possible.
|
|
"""
|
|
groups = {'DEFAULT': {'object': None, 'namespaces': []}}
|
|
for namespace, listing in conf_ns:
|
|
for group, opts in listing:
|
|
if not opts:
|
|
continue
|
|
group = group if group else 'DEFAULT'
|
|
is_optgroup = hasattr(group, 'name')
|
|
group_name = group.name if is_optgroup else group
|
|
if group_name not in groups:
|
|
groups[group_name] = {'object': None, 'namespaces': []}
|
|
if is_optgroup:
|
|
groups[group_name]['object'] = group
|
|
groups[group_name]['namespaces'].append((namespace, opts))
|
|
return groups
|
|
|
|
|
|
def _build_entry(opt, group, namespace, conf):
|
|
"""Return a dict representing the passed in opt
|
|
|
|
The dict will contain all public attributes of opt, as well as additional
|
|
entries for namespace, choices, min, and max. Any DeprecatedOpts
|
|
contained in the deprecated_opts member will be converted to a dict with
|
|
the format: {'group': <deprecated group>, 'name': <deprecated name>}
|
|
|
|
:param opt: The Opt object to represent as a dict.
|
|
:param group: The name of the group containing opt.
|
|
:param namespace: The name of the namespace containing opt.
|
|
:param conf: The ConfigOpts object containing the options for the
|
|
generator tool
|
|
"""
|
|
entry = {key: value for key, value in opt.__dict__.items()
|
|
if not key.startswith('_')}
|
|
entry['namespace'] = namespace
|
|
# In some types, choices is explicitly set to None. Force it to [] so it
|
|
# is always an iterable type.
|
|
entry['choices'] = getattr(entry['type'], 'choices', []) or []
|
|
entry['min'] = getattr(entry['type'], 'min', None)
|
|
entry['max'] = getattr(entry['type'], 'max', None)
|
|
entry['type'] = _format_type_name(entry['type'])
|
|
deprecated_opts = []
|
|
for deprecated_opt in entry['deprecated_opts']:
|
|
# NOTE(bnemec): opt names with a - are not valid in a config file,
|
|
# but it is possible to add a DeprecatedOpt with a - name. We
|
|
# want to ignore those as they won't work anyway.
|
|
if not deprecated_opt.name or '-' not in deprecated_opt.name:
|
|
deprecated_opts.append(
|
|
{'group': deprecated_opt.group or group,
|
|
'name': deprecated_opt.name or entry['name'],
|
|
})
|
|
entry['deprecated_opts'] = deprecated_opts
|
|
return entry
|
|
|
|
|
|
def _generate_machine_readable_data(groups, conf):
|
|
"""Create data structure for machine readable sample config
|
|
|
|
Returns a dictionary with the top-level keys 'options',
|
|
'deprecated_options', and 'generator_options'.
|
|
|
|
'options' contains a dict mapping group names to a list of options in
|
|
that group. Each option is represented by the result of a call to
|
|
_build_entry. Only non-deprecated options are included in this list.
|
|
|
|
'deprecated_options' contains a dict mapping groups names to a list of
|
|
opts from that group which were deprecated.
|
|
|
|
'generator_options' is a dict mapping the options for the sample config
|
|
generator itself to their values.
|
|
|
|
:param groups: A dict of groups as returned by _get_groups.
|
|
:param conf: The ConfigOpts object containing the options for the
|
|
generator tool
|
|
"""
|
|
output_data = {'options': {},
|
|
'deprecated_options': {},
|
|
'generator_options': {}}
|
|
# See _get_groups for details on the structure of group_data
|
|
for group_name, group_data in groups.items():
|
|
output_group = {'opts': [], 'help': ''}
|
|
output_data['options'][group_name] = output_group
|
|
for namespace in group_data['namespaces']:
|
|
for opt in namespace[1]:
|
|
if group_data['object']:
|
|
output_group.update(
|
|
group_data['object']._get_generator_data()
|
|
)
|
|
else:
|
|
output_group.update({
|
|
'dynamic_group_owner': '',
|
|
'driver_option': '',
|
|
'driver_opts': {},
|
|
})
|
|
entry = _build_entry(opt, group_name, namespace[0], conf)
|
|
output_group['opts'].append(entry)
|
|
# Need copies of the opts because we modify them
|
|
for deprecated_opt in copy.deepcopy(entry['deprecated_opts']):
|
|
group = deprecated_opt.pop('group')
|
|
deprecated_options = output_data['deprecated_options']
|
|
deprecated_options.setdefault(group, [])
|
|
deprecated_opt['replacement_name'] = entry['name']
|
|
deprecated_opt['replacement_group'] = group_name
|
|
deprecated_options[group].append(deprecated_opt)
|
|
# Build the list of options in the group that are not tied to
|
|
# a driver.
|
|
non_driver_opt_names = [
|
|
o['name']
|
|
for o in output_group['opts']
|
|
if not any(o['name'] in output_group['driver_opts'][d]
|
|
for d in output_group['driver_opts'])
|
|
]
|
|
output_group['standard_opts'] = non_driver_opt_names
|
|
|
|
output_data['generator_options'] = dict(conf)
|
|
return output_data
|
|
|
|
|
|
def _output_machine_readable(groups, output_file, conf):
|
|
"""Write a machine readable sample config file
|
|
|
|
Take the data returned by _generate_machine_readable_data and write it in
|
|
the format specified by the format_ attribute of conf.
|
|
|
|
:param groups: A dict of groups as returned by _get_groups.
|
|
:param output_file: A file-like object to which the data should be written.
|
|
:param conf: The ConfigOpts object containing the options for the
|
|
generator tool
|
|
"""
|
|
output_data = _generate_machine_readable_data(groups, conf)
|
|
if conf.format_ == 'yaml':
|
|
output_file.write(yaml.safe_dump(output_data,
|
|
default_flow_style=False))
|
|
else:
|
|
output_file.write(json.dumps(output_data, sort_keys=True))
|
|
output_file.write('\n')
|
|
|
|
|
|
def generate(conf, output_file=None):
|
|
"""Generate a sample config file.
|
|
|
|
List all of the options available via the namespaces specified in the given
|
|
configuration and write a description of them to the specified output file.
|
|
|
|
:param conf: a ConfigOpts instance containing the generator's configuration
|
|
"""
|
|
conf.register_opts(_generator_opts)
|
|
|
|
if output_file is None:
|
|
output_file = (open(conf.output_file, 'w')
|
|
if conf.output_file else sys.stdout)
|
|
|
|
groups = _get_groups(_list_opts(conf.namespace))
|
|
|
|
if conf.format_ == 'ini':
|
|
formatter = _OptFormatter(output_file=output_file,
|
|
wrap_width=conf.wrap_width)
|
|
|
|
# Output the "DEFAULT" section as the very first section
|
|
_output_opts(formatter, 'DEFAULT', groups.pop('DEFAULT'), conf.minimal,
|
|
conf.summarize)
|
|
|
|
# output all other config sections with groups in alphabetical order
|
|
for group, group_data in sorted(groups.items()):
|
|
formatter.write('\n\n')
|
|
_output_opts(formatter, group, group_data, conf.minimal,
|
|
conf.summarize)
|
|
else:
|
|
_output_machine_readable(groups,
|
|
output_file=output_file,
|
|
conf=conf)
|
|
|
|
|
|
def main(args=None):
|
|
"""The main function of oslo-config-generator."""
|
|
version = pkg_resources.get_distribution('oslo.config').version
|
|
logging.basicConfig(level=logging.WARN)
|
|
conf = cfg.ConfigOpts()
|
|
register_cli_opts(conf)
|
|
conf(args, version=version)
|
|
generate(conf)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|