296 lines
11 KiB
Python
296 lines
11 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# 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.
|
|
|
|
import argparse
|
|
import glob
|
|
import os
|
|
import pickle
|
|
import sys
|
|
|
|
import jinja2
|
|
from lxml import etree
|
|
from oslo_config import cfg
|
|
|
|
from autohelp import OptionsCache # noqa
|
|
|
|
# Swift configuration example files live in
|
|
# swift/etc/*.conf-sample
|
|
# and contain sections enclosed in [], with
|
|
# options one per line containing =
|
|
# and generally only having a single entry
|
|
# after the equals (the default value)
|
|
|
|
DBK_NS = ".//{http://docbook.org/ns/docbook}"
|
|
|
|
BASE_XML = '''<?xml version="1.0"?>
|
|
<para xmlns="http://docbook.org/ns/docbook"
|
|
version="5.0">
|
|
<!-- The tool that generated this table lives in the
|
|
openstack-doc-tools repository. The editions made in
|
|
this file will *not* be lost if you run the script again. -->
|
|
<table rules="all">
|
|
<caption>Description of configuration options for
|
|
<literal>[%s]</literal> in <filename>%s.conf</filename>
|
|
</caption>
|
|
<col width="50%%"/>
|
|
<col width="50%%"/>
|
|
<thead>
|
|
<tr>
|
|
<th>Configuration option = Default value</th>
|
|
<th>Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody></tbody>
|
|
</table>
|
|
</para>'''
|
|
|
|
|
|
def parse_line(line):
|
|
"""Parse a line.
|
|
|
|
Takes a line from a swift sample configuration file and attempts
|
|
to separate the lines with actual configuration option and default
|
|
value from the rest. Returns None if the line doesn't appear to
|
|
contain a valid configuration option = default value pair, and
|
|
a pair of the config and its default if it does.
|
|
"""
|
|
|
|
if '=' not in line:
|
|
return None
|
|
temp_line = line.strip('#').strip()
|
|
config, default = temp_line.split('=', 1)
|
|
config = config.strip()
|
|
if ' ' in config and config[0:3] != 'set':
|
|
if len(default.split()) > 1 or config[0].isupper():
|
|
return None
|
|
if len(config) < 2 or '.' in config or '<' in config or '>' in config:
|
|
return None
|
|
return config, default.strip()
|
|
|
|
|
|
def get_existing_options(optfiles):
|
|
"""Parse an existing XML table to compile a list of existing options."""
|
|
options = {}
|
|
for optfile in optfiles:
|
|
if optfile.endswith('/swift-conf-changes.xml'):
|
|
continue
|
|
xml = etree.fromstring(open(optfile).read())
|
|
tbody = xml.find(DBK_NS + "tbody")
|
|
trlist = tbody.findall(DBK_NS + "tr")
|
|
for tr in trlist:
|
|
try:
|
|
col1, col2 = tr.findall(DBK_NS + "td")
|
|
option = col1.find(DBK_NS + "option").text
|
|
helptext = etree.tostring(col2, xml_declaration=False,
|
|
method="text")
|
|
except IndexError:
|
|
continue
|
|
if option not in options or 'No help text' in options[option]:
|
|
# options[option.split('=',1)[0]] = helptext
|
|
options[option] = helptext.strip()
|
|
return options
|
|
|
|
|
|
def extract_descriptions_from_devref(swift_repo, options):
|
|
"""Extract descriptions from devref RST files.
|
|
|
|
Loop through the devref RST files, looking for lines formatted
|
|
such that they might contain a description of a particular
|
|
option.
|
|
"""
|
|
|
|
option_descs = {}
|
|
rsts = glob.glob(swift_repo + '/doc/source/*.rst')
|
|
for rst in rsts:
|
|
rst_file = open(rst, 'r')
|
|
in_option_block = False
|
|
prev_option = None
|
|
for line in rst_file:
|
|
if 'Option ' in line:
|
|
in_option_block = True
|
|
if in_option_block:
|
|
if '========' in line:
|
|
in_option_block = False
|
|
continue
|
|
if line[0] == ' ' and prev_option is not None:
|
|
option_descs[prev_option] = (option_descs[prev_option]
|
|
+ ' ' + line.strip())
|
|
for option in options:
|
|
line_parts = line.strip().split(None, 2)
|
|
if (' ' in line and
|
|
len(line_parts) == 3 and
|
|
option == line_parts[0] and
|
|
line_parts[1] != '=' and
|
|
option != 'use' and
|
|
(option not in option_descs or
|
|
len(option_descs[option]) < len(line_parts[2]))):
|
|
option_descs[option] = line_parts[2]
|
|
prev_option = option
|
|
return option_descs
|
|
|
|
|
|
def write_files(options, manuals_repo, output_format):
|
|
"""Create new DocBook tables.
|
|
|
|
Writes a set of DocBook-formatted tables, one per section in swift
|
|
configuration files.
|
|
"""
|
|
all_options = {}
|
|
names = options.get_option_names()
|
|
for full_option in sorted(names, OptionsCache._cmpopts):
|
|
section, optname = full_option.split('/')
|
|
oslo_opt = options.get_option(full_option)[1]
|
|
all_options.setdefault(section, [])
|
|
|
|
all_options[section].append((oslo_opt.name,
|
|
oslo_opt.default,
|
|
oslo_opt.help.strip()))
|
|
|
|
for full_section, options in all_options.items():
|
|
sample_filename, section = full_section.split('|')
|
|
tmpl_file = os.path.join(os.path.dirname(__file__),
|
|
'templates/swift.%s.j2' % output_format)
|
|
with open(tmpl_file) as fd:
|
|
template = jinja2.Template(fd.read(), trim_blocks=True)
|
|
output = template.render(filename=sample_filename,
|
|
section=section,
|
|
options=options)
|
|
|
|
if output_format == 'docbook':
|
|
tgt = (manuals_repo + '/doc/common/tables/' + 'swift-' +
|
|
sample_filename + '-' + section + '.xml')
|
|
else:
|
|
tgt = (manuals_repo + '/doc/config-ref-rst/source/tables/' +
|
|
'swift-' + sample_filename + '-' + section + '.rst')
|
|
|
|
with open(tgt, 'w') as fd:
|
|
fd.write(output)
|
|
|
|
|
|
def read_options(swift_repo, manuals_repo, verbose):
|
|
"""Find swift configuration options.
|
|
|
|
Uses existing tables and swift devref as a source of truth in that order to
|
|
determine helptext for options found in sample config files.
|
|
"""
|
|
|
|
existing_tables = glob.glob(manuals_repo + '/doc/common/tables/swift*xml')
|
|
options = {}
|
|
# use the existing tables to get a list of option names
|
|
options = get_existing_options(existing_tables)
|
|
option_descs = extract_descriptions_from_devref(swift_repo, options)
|
|
conf_samples = glob.glob(swift_repo + '/etc/*conf-sample')
|
|
for sample in conf_samples:
|
|
current_section = None
|
|
sample_file = open(sample, 'r')
|
|
for line in sample_file:
|
|
if '[' in line and ']\n' in line and '=' not in line:
|
|
# It's a header line in the conf file, open a new table file
|
|
# for this section and close any existing one
|
|
new_line = line.strip('#').strip()
|
|
if current_section != new_line:
|
|
current_section = new_line
|
|
|
|
base_section = os.path.basename(sample).split('.conf')[0]
|
|
extra_section = current_section[1:-1].replace(':', '-')
|
|
full_section = "%s|%s" % (base_section, extra_section)
|
|
|
|
continue
|
|
|
|
# All the swift files start with a section, except the rsync
|
|
# sample. The first items are not important for us.
|
|
if current_section is None:
|
|
continue
|
|
|
|
# It's a config option line in the conf file, find out the
|
|
# help text and write to the table file.
|
|
parsed_line = parse_line(line)
|
|
if parsed_line is not None:
|
|
if (parsed_line[0] in options.keys()
|
|
and 'No help text' not in options[parsed_line[0]]):
|
|
# use the help text from existing tables
|
|
option_desc = options[parsed_line[0]]
|
|
elif parsed_line[0] in option_descs:
|
|
# use the help text from the devref
|
|
option_desc = option_descs[parsed_line[0]]
|
|
else:
|
|
option_desc = 'No help text available for this option.'
|
|
if verbose > 0:
|
|
print(parsed_line[0] + " has no help text")
|
|
|
|
# \xa0 is a non-breacking space
|
|
name = parsed_line[0]
|
|
option_desc = option_desc.replace(u'\xa0', u' ')
|
|
default = parsed_line[1]
|
|
|
|
o = cfg.StrOpt(name=name, default=default, help=option_desc)
|
|
try:
|
|
cfg.CONF.register_opt(o, full_section)
|
|
except cfg.DuplicateOptError:
|
|
pass
|
|
|
|
|
|
def dump_options(options):
|
|
"""Dump the list of options with their attributes.
|
|
|
|
This output is consumed by the diff_branches script.
|
|
"""
|
|
print(pickle.dumps(options._opts_by_name))
|
|
|
|
|
|
def main():
|
|
"""Parse and write the Swift configuration options."""
|
|
|
|
parser = argparse.ArgumentParser(
|
|
description="Update the swift options tables.",
|
|
usage=("%(prog)s docbook|rst|dump [-v] [-s swift_repo] "
|
|
"[-m manuals_repo]"))
|
|
parser.add_argument('subcommand',
|
|
help='Action (docbook, rst, dump).',
|
|
choices=['docbook', 'dump', 'rst'])
|
|
parser.add_argument('-s', '--swift-repo',
|
|
dest='swift_repo',
|
|
help="Location of the swift git repository.",
|
|
required=False,
|
|
default="./sources/swift")
|
|
parser.add_argument('-m', '--manuals-repo',
|
|
dest='manuals_repo',
|
|
help="Location of the manuals git repository.",
|
|
required=False,
|
|
default="./sources/openstack-manuals")
|
|
parser.add_argument('-v', '--verbose',
|
|
action='count',
|
|
default=0,
|
|
dest='verbose',
|
|
required=False)
|
|
args = parser.parse_args()
|
|
|
|
# Avoid cluttering the pickle output, otherwise it's not usable
|
|
if args.subcommand == 'dump':
|
|
args.verbose = 0
|
|
|
|
read_options(args.swift_repo, args.manuals_repo, args.verbose)
|
|
options = OptionsCache()
|
|
|
|
if args.subcommand in ('docbook', 'rst'):
|
|
write_files(options, args.manuals_repo, args.subcommand)
|
|
|
|
elif args.subcommand == 'dump':
|
|
options.dump()
|
|
|
|
return 0
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|