9eaa08678c
gen-oslo-openstack-helm generated configuration file templates in incorrect form, causing setting mulitple values in Values.yaml to produce something like: foo=barfoo=baz This commit fixes this in the generator and updates config file templates to generate configs correctly: foo=bar foo=baz Change-Id: Iea661dcf1710987b2e111d7141ba888f01c44a50 Closes-Bug: 1699581
682 lines
24 KiB
Python
Executable File
682 lines
24 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2012 SINA Corporation
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# Copyright 2014 Cisco Systems, Inc.
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# All Rights Reserved.
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# Copyright 2014 Red Hat, Inc.
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# Copyright 2017 The Openstack-Helm Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import operator
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import sys
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import textwrap
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import re
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import traceback
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import pkg_resources
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import six
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from oslo_config._i18n import _LW
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from oslo_config import cfg
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from oslo_config.generator import _get_groups, _list_opts, _format_defaults, \
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_TYPE_NAMES
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import stevedore.named # noqa
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LOG = logging.getLogger(__name__)
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UPPER_CASE_GROUP_NAMES = ['DEFAULT']
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def _format_type_name(opt_type):
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"""Format the type name to use in describing an option"""
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try:
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return opt_type.type_name
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except AttributeError: # nosec
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pass
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try:
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return _TYPE_NAMES[opt_type]
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except KeyError: # nosec
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pass
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return 'unknown value'
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_generator_opts = [
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cfg.StrOpt(
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'output-file',
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help='Path of the file to write to. Defaults to stdout.'),
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cfg.IntOpt(
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'wrap-width',
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default=70,
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help='The maximum length of help lines.'),
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cfg.MultiStrOpt(
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'namespace',
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required=True,
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help='Option namespace under "oslo.config.opts" in which to query '
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'for options.'),
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cfg.StrOpt(
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'helm_namespace',
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required=True,
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help="Helm Namespace, e.g. 'keystone'"),
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cfg.StrOpt(
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'helm_chart',
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required=True,
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help="Helm Chart Name, e.g. 'keystone'"),
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cfg.BoolOpt(
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'minimal',
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default=False,
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help='Generate a minimal required configuration.'),
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cfg.BoolOpt(
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'summarize',
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default=False,
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help='Only output summaries of help text to config files. Retain '
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'longer help text for Sphinx documents.'),
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]
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def register_cli_opts(conf):
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"""Register the formatter's CLI options with a ConfigOpts instance.
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Note, this must be done before the ConfigOpts instance is called to parse
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the configuration.
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:param conf: a ConfigOpts instance
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:raises: DuplicateOptError, ArgsAlreadyParsedError
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"""
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conf.register_cli_opts(_generator_opts)
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def _output_opts_null(f, group, group_data, minimal=False, summarize=False):
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pass
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f.format_group(group_data['object'] or group)
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for (namespace, opts) in sorted(group_data['namespaces'],
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key=operator.itemgetter(0)):
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for opt in sorted(opts, key=operator.attrgetter('advanced')):
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try:
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if minimal and not opt.required:
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pass
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else:
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f.format(opt, group, namespace, minimal, summarize)
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except Exception as err:
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pass
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def _output_opts(f, group, group_data, minimal=False, summarize=False):
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f.format_group(group_data['object'] or group)
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for (namespace, opts) in sorted(group_data['namespaces'],
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key=operator.itemgetter(0)):
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f.write('\n#\n# From %s\n#\n' % namespace)
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for opt in sorted(opts, key=operator.attrgetter('advanced')):
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try:
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if minimal and not opt.required:
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pass
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else:
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f.write('\n')
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f.format(opt, group, namespace, minimal, summarize)
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except Exception as err:
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f.write('# Warning: Failed to format sample for %s\n' %
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(opt.dest,))
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f.write('# %s\n' % (traceback.format_exc(),))
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class _ValuesSkeletonFormatter(object):
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"""Format configuration option descriptions to a file."""
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def __init__(self, output_file=None, wrap_width=70):
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"""Construct an OptFormatter object.
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:param output_file: a writeable file object
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:param wrap_width: The maximum length of help lines, 0 to not wrap
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"""
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self.output_file = output_file or sys.stdout
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self.wrap_width = wrap_width
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self.done = []
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def _format_help(self, help_text):
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pass
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def _get_choice_text(self, choice):
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pass
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def format_group(self, group_or_groupname):
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pass
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def format(self, opt, group_name, namespace, minimal=False,
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summarize=False):
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"""Format a description of an option to the output file.
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:param opt: a cfg.Opt instance
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:param group_name: name of the group to which the opt is assigned
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:param minimal: enable option by default, marking it as required
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:param summarize: output a summarized description of the opt
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:returns: a formatted opt description string
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"""
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if hasattr(opt.type, 'format_defaults'):
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defaults = opt.type.format_defaults(opt.default,
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opt.sample_default)
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else:
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LOG.debug(
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"The type for option %(name)s which is %(type)s is not a "
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"subclass of types.ConfigType and doesn't provide a "
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"'format_defaults' method. A default formatter is not "
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"available so the best-effort formatter will be used.",
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{'type': opt.type, 'name': opt.name})
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defaults = _format_defaults(opt)
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lines = []
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for default_str in defaults:
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if len(group_name.split('.')) > 1:
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line = '{{- if not .%s -}}\
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{{- set . "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower().split('.')[0],
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group_name.lower().split('.')[0])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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line = '{{- if not .%s.%s -}}\
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{{- set .%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower().split('.')[0],
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group_name.lower().split('.')[1],
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group_name.lower().split('.')[0],
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group_name.lower().split('.')[1])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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else:
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line = '{{- if not .%s -}}\
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{{- set . "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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group_name.lower())
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(namespace.split('.')) == 1:
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line = '{{- if not .%s.%s -}}\
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{{- set .%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace,
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group_name.lower(),
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namespace)
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(namespace.split('.')) > 1:
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line = '{{- if not .%s.%s -}}\
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{{- set .%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace.split('.')[0],
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group_name.lower(),
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namespace.split('.')[0])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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line = '{{- if not .%s.%s.%s -}}\
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{{- set .%s.%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace.split('.')[0],
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namespace.split('.')[1],
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group_name.lower(),
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namespace.split('.')[0],
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namespace.split('.')[1])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(namespace.split('.')) > 2:
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line = '{{- if not .%s.%s.%s.%s -}}\
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{{- set .%s.%s.%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace.split('.')[0],
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namespace.split('.')[1],
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namespace.split('.')[2],
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group_name.lower(),
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namespace.split('.')[0],
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namespace.split('.')[1],
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namespace.split('.')[2])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(namespace.split('.')) > 3:
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line = '{{- if not .%s.%s.%s.%s.%s -}}\
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{{- set .%s.%s.%s.%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace.split('.')[0],
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namespace.split('.')[1],
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namespace.split('.')[2],
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namespace.split('.')[3],
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group_name.lower(),
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namespace.split('.')[0],
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namespace.split('.')[1],
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namespace.split('.')[2],
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namespace.split('.')[3])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(opt.dest.split('.')) > 1:
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line = '{{- if not .%s.%s.%s -}}\
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{{- set .%s.%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace,
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opt.dest.split('.')[0],
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group_name.lower(),
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namespace,
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opt.dest.split('.')[0])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(opt.dest.split('.')) > 2:
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line = '{{- if not .%s.%s.%s.%s -}}\
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{{- set .%s.%s.%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace,
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opt.dest.split('.')[0],
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opt.dest.split('.')[1],
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group_name.lower(),
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namespace,
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opt.dest.split('.')[0],
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opt.dest.split('.')[1])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if len(opt.dest.split('.')) > 3:
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line = '{{- if not .%s.%s.%s.%s.%s -}}\
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{{- set .%s.%s.%s.%s "%s" dict -}}\
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{{- end -}}\n' % (
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group_name.lower(),
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namespace,
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opt.dest.split('.')[0],
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opt.dest.split('.')[1],
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opt.dest.split('.')[2],
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group_name.lower(),
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namespace,
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opt.dest.split('.')[0],
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opt.dest.split('.')[1],
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opt.dest.split('.')[2])
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if line not in self.done:
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self.done.append(line)
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lines.append(line)
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if lines:
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self.writelines(lines)
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def write(self, s):
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"""Write an arbitrary string to the output file.
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:param s: an arbitrary string
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"""
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self.output_file.write(s)
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def writelines(self, l):
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"""Write an arbitrary sequence of strings to the output file.
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:param l: a list of arbitrary strings
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"""
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self.output_file.writelines(l)
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class _HelmOptFormatter(object):
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"""Format configuration option descriptions to a file."""
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def __init__(self, output_file=None, wrap_width=70):
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"""Construct an OptFormatter object.
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:param output_file: a writeable file object
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:param wrap_width: The maximum length of help lines, 0 to not wrap
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"""
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self.output_file = output_file or sys.stdout
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self.wrap_width = wrap_width
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def _format_help(self, help_text):
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"""Format the help for a group or option to the output file.
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:param help_text: The text of the help string
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"""
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if self.wrap_width is not None and self.wrap_width > 0:
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wrapped = ""
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for line in help_text.splitlines():
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text = "\n".join(textwrap.wrap(line, self.wrap_width,
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initial_indent='# ',
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subsequent_indent='# ',
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break_long_words=False,
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replace_whitespace=False))
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wrapped += "#" if text == "" else text
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wrapped += "\n"
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lines = [wrapped]
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else:
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lines = ['# ' + help_text + '\n']
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return lines
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def _get_choice_text(self, choice):
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if choice is None:
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return '<None>'
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elif choice == '':
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return "''"
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return six.text_type(choice)
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def format_group(self, group_or_groupname):
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"""Format the description of a group header to the output file
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:param group_or_groupname: a cfg.OptGroup instance or a name of group
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:returns: a formatted group description string
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"""
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if isinstance(group_or_groupname, cfg.OptGroup):
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group = group_or_groupname
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lines = ['[%s]\n' % group.name]
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if group.help:
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lines += self._format_help(group.help)
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else:
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groupname = group_or_groupname
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lines = ['[%s]\n' % groupname]
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self.writelines(lines)
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def format(self, opt, group_name, namespace, minimal=False,
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summarize=False):
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"""Format a description of an option to the output file.
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:param opt: a cfg.Opt instance
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:param group_name: name of the group to which the opt is assigned
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:param minimal: enable option by default, marking it as required
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:param summarize: output a summarized description of the opt
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:returns: a formatted opt description string
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"""
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if not opt.help:
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LOG.warning(_LW('"%s" is missing a help string'), opt.dest)
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opt_type = _format_type_name(opt.type)
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opt_prefix = ''
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if (opt.deprecated_for_removal and
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not opt.help.startswith('DEPRECATED')):
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opt_prefix = 'DEPRECATED: '
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if opt.help:
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# an empty line signifies a new paragraph. We only want the
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# summary line
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if summarize:
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_split = opt.help.split('\n\n')
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opt_help = _split[0].rstrip(':').rstrip('.')
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if len(_split) > 1:
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opt_help += '. For more information, refer to the '
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opt_help += 'documentation.'
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else:
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opt_help = opt.help
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help_text = u'%s%s (%s)' % (opt_prefix,
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opt_help,
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opt_type)
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else:
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help_text = u'(%s)' % opt_type
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lines = self._format_help(help_text)
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if getattr(opt.type, 'min', None) is not None:
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lines.append('# Minimum value: %d\n' % opt.type.min)
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if getattr(opt.type, 'max', None) is not None:
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lines.append('# Maximum value: %d\n' % opt.type.max)
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if getattr(opt.type, 'choices', None):
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choices_text = ', '.join([self._get_choice_text(choice)
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for choice in opt.type.choices])
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lines.append('# Allowed values: %s\n' % choices_text)
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try:
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if opt.mutable:
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lines.append(
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'# Note: This option can be changed without restarting.\n'
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)
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except AttributeError as err:
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# NOTE(dhellmann): keystoneauth defines its own Opt class,
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# and neutron (at least) returns instances of those
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# classes instead of oslo_config Opt instances. The new
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# mutable attribute is the first property where the API
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# isn't supported in the external class, so we can use
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# this failure to emit a warning. See
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# https://bugs.launchpad.net/keystoneauth/+bug/1548433 for
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# more details.
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import warnings
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if not isinstance(opt, cfg.Opt):
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warnings.warn(
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'Incompatible option class for %s (%r): %s' %
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(opt.dest, opt.__class__, err),
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)
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else:
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warnings.warn('Failed to fully format sample for %s: %s' %
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(opt.dest, err))
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for d in opt.deprecated_opts:
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lines.append('# Deprecated group/name - [%s]/%s\n' %
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(d.group or group_name, d.name or opt.dest))
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if opt.deprecated_for_removal:
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if opt.deprecated_since:
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lines.append(
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'# This option is deprecated for removal since %s.\n' % (
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opt.deprecated_since))
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else:
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lines.append(
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'# This option is deprecated for removal.\n')
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lines.append(
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'# Its value may be silently ignored in the future.\n')
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if opt.deprecated_reason:
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lines.extend(
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self._format_help('Reason: ' + opt.deprecated_reason))
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if opt.advanced:
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lines.append(
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'# Advanced Option: intended for advanced users and not used\n'
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'# by the majority of users, and might have a significant\n'
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'# effect on stability and/or performance.\n'
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)
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if hasattr(opt.type, 'format_defaults'):
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defaults = opt.type.format_defaults(opt.default,
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opt.sample_default)
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else:
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LOG.debug(
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"The type for option %(name)s which is %(type)s is not a "
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"subclass of types.ConfigType and doesn't provide a "
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"'format_defaults' method. A default formatter is not "
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"available so the best-effort formatter will be used.",
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{'type': opt.type, 'name': opt.name})
|
|
defaults = _format_defaults(opt)
|
|
for default_str in defaults:
|
|
if type(opt) in [cfg.MultiOpt, cfg.MultiStrOpt]:
|
|
lines.append('# from .%s.%s.%s (multiopt)\n' % (
|
|
group_name.lower(),
|
|
namespace, opt.dest))
|
|
lines.append('{{ if not .%s.%s.%s }}#%s = '
|
|
'{{ .%s.%s.%s | default "%s" }}{{ else }}'
|
|
'{{ range .%s.%s.%s }}%s = {{ . }}\n{{ end }}'
|
|
'{{ end }}\n' % (
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest,
|
|
opt.dest,
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest,
|
|
default_str.replace('"', r'\"'),
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest,
|
|
opt.dest))
|
|
|
|
else:
|
|
lines.append('# from .%s.%s.%s\n' % (
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest))
|
|
if minimal:
|
|
lines.append('%s = {{ .%s.%s.%s | default "%s" }}\n' % (
|
|
opt.dest,
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest,
|
|
default_str.replace('"', r'\"')))
|
|
else:
|
|
lines.append('{{ if not .%s.%s.%s }}#{{ end }}%s = '
|
|
'{{ .%s.%s.%s | default "%s" }}\n' % (
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest,
|
|
opt.dest,
|
|
group_name.lower(),
|
|
namespace,
|
|
opt.dest,
|
|
default_str.replace('"', r'\"')))
|
|
|
|
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 generate(conf):
|
|
"""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)
|
|
|
|
output_file = (open(conf.output_file, 'w')
|
|
if conf.output_file else sys.stdout)
|
|
|
|
output_file.write('''# Copyright 2017 The Openstack-Helm Authors.
|
|
#
|
|
# 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.
|
|
|
|
{{ include "%s.conf.%s_values_skeleton" .Values.conf.%s | trunc 0 }}
|
|
{{ include "%s.conf.%s" .Values.conf.%s }}
|
|
\n''' % (conf.helm_chart,
|
|
conf.helm_namespace,
|
|
conf.helm_namespace,
|
|
conf.helm_chart,
|
|
conf.helm_namespace,
|
|
conf.helm_namespace))
|
|
|
|
output_file.write('''
|
|
{{- define "%s.conf.%s_values_skeleton" -}}
|
|
\n''' % (conf.helm_chart, conf.helm_namespace))
|
|
|
|
# values skeleton
|
|
formatter = _ValuesSkeletonFormatter(output_file=output_file,
|
|
wrap_width=conf.wrap_width)
|
|
|
|
groups = _get_groups(_list_opts(conf.namespace))
|
|
|
|
# Output the "DEFAULT" section as the very first section
|
|
_output_opts_null(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()):
|
|
_output_opts_null(formatter, group, group_data, conf.minimal,
|
|
conf.summarize)
|
|
|
|
output_file.write('''
|
|
{{- end -}}
|
|
\n''')
|
|
|
|
output_file.write('''
|
|
{{- define "%s.conf.%s" -}}
|
|
\n''' % (conf.helm_chart, conf.helm_namespace))
|
|
|
|
# helm options
|
|
formatter = _HelmOptFormatter(output_file=output_file,
|
|
wrap_width=conf.wrap_width)
|
|
|
|
groups = _get_groups(_list_opts(conf.namespace))
|
|
|
|
# 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)
|
|
|
|
output_file.write('''
|
|
{{- end -}}
|
|
\n''')
|
|
|
|
|
|
# generate helm defaults
|
|
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__':
|
|
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
|
|
sys.exit(main())
|