764 lines
28 KiB
Python
764 lines
28 KiB
Python
#!/usr/bin/env python
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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 argparse
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import os
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import re
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import subprocess
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import sys
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import yaml
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import os_doc_tools
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DEVNULL = open(os.devnull, 'wb')
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MAXLINELENGTH = 78
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def use_help_flag(os_command):
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"""Use --help flag (instead of help keyword)
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Returns true if the command requires a --help flag instead
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of a help keyword.
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"""
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return os_command == "swift" or "-manage" in os_command
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def quote_rst(line):
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"""Convert special characters for RST output."""
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line = line.replace('\\', '\\\\').replace('`', '\\`').replace('*', '\\*')
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if '--' in line:
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line = re.sub(r'(--[^ .\'\\]*)', r":option:`\1`", line)
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# work around for "`--`" at murano
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line = line.replace('\\`:option:`--`\\`', '```--```')
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if 'DEPRECATED!' in line:
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line = line.replace('DEPRECATED!', '**DEPRECATED!**')
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elif 'DEPRECATED' in line:
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line = line.replace('DEPRECATED', '**DEPRECATED**')
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if 'env[' in line:
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line = line.replace('env[', '``env[').replace(']', ']``')
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# work around for "Default=env[...]" at cinder
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line = line.replace('=``', '= ``')
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return line
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def generate_heading(os_command, api_name, title, os_file):
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"""Write RST file header.
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:param os_command: client command to document
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:param api_name: string description of the API of os_command
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:param os_file: open filehandle for output of RST file
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"""
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try:
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version = subprocess.check_output([os_command, "--version"],
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universal_newlines=True,
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stderr=subprocess.STDOUT)
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except OSError as e:
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if e.errno == os.errno.ENOENT:
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print("Command %s not found, aborting." % os_command)
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sys.exit(1)
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# Extract version from "swift 0.3"
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version = version.splitlines()[-1].strip().rpartition(' ')[2]
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print("Documenting '%s help (version %s)'" % (os_command, version))
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os_file.write(".. ## WARNING ######################################\n")
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os_file.write(".. This file is automatically generated, do not edit\n")
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os_file.write(".. #################################################\n\n")
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format_heading(title, 1, os_file)
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if os_command == "keystone":
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os_file.write(".. warning::\n\n")
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os_file.write(" The " + os_command + " CLI is deprecated\n")
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os_file.write(" in favor of python-openstackclient.\n")
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os_file.write(" For more information, see :doc:`openstack`.\n")
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os_file.write(" For a Python library, continue using\n")
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os_file.write(" python-" + os_command + "client.\n\n")
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if os_command == "openstack":
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os_file.write("The openstack client is a common OpenStack")
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os_file.write("command-line interface (CLI).\n\n")
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else:
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os_file.write("The " + os_command + " client is the command-line ")
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os_file.write("interface (CLI) for\n")
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os_file.write("the " + api_name + " and its extensions.\n\n")
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os_file.write("This chapter documents :command:`" + os_command + "` ")
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os_file.write("version ``" + version + "``.\n\n")
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os_file.write("For help on a specific :command:`" + os_command + "` ")
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os_file.write("command, enter:\n\n")
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os_file.write(".. code-block:: console\n\n")
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if use_help_flag(os_command):
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os_file.write(" $ " + os_command + " COMMAND --help\n\n")
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else:
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os_file.write(" $ " + os_command + " help COMMAND\n\n")
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os_file.write(".. _" + os_command + "_command_usage:\n\n")
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format_heading(os_command + " usage", 2, os_file)
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def is_option(string):
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"""Returns True if string specifies an argument."""
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for x in string:
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if not (x.isupper() or x == '_' or x == ','):
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return False
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if string.startswith('DEPRECATED'):
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return False
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return True
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def extract_options(line):
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"""Extract command or option from line."""
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# We have a command or parameter to handle
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# Differentiate:
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# 1. --version
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# 2. --timeout <seconds>
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# 3. --service <service>, --service-id <service>
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# 4. -v, --verbose
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# 5. -p PORT, --port PORT
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# 6. <backup> ID of the backup to restore.
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# 7. --alarm-action <Webhook URL>
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# 8. <NAME or ID> Name or ID of stack to resume.
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# 9. --json JSON JSON representation of node group template.
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# 10. --id <cluster_id> ID of the cluster to show.
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split_line = line.split(None, 2)
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if split_line[0].startswith("-"):
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last_was_option = True
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else:
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last_was_option = False
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if (len(split_line) > 1 and
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('<' in split_line[0] or
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'<' in split_line[1] or
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'--' in split_line[1] or
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split_line[1].startswith(("-", '<', '{', '[')) or
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is_option(split_line[1]))):
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words = line.split(None)
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i = 0
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while i < len(words) - 1:
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if (('<' in words[i] and
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'>' not in words[i]) or
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('[' in words[i] and
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']' not in words[i])):
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words[i] += ' ' + words[i + 1]
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del words[i + 1]
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else:
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i += 1
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skip_is_option = False
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while len(words) > 1:
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if words[1].startswith('DEPRECATED'):
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break
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if last_was_option:
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if (words[1].startswith(("-", '<', '{', '[')) or
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(is_option(words[1]) and skip_is_option is False)):
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skip_is_option = False
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if words[1].isupper() or words[1].startswith('<'):
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skip_is_option = True
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words[0] = words[0] + ' ' + words[1]
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del words[1]
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else:
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break
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else:
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if words[1].startswith("-"):
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words[0] = words[0] + ' ' + words[1]
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del words[1]
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else:
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break
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w0 = words[0]
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del words[0]
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w1 = ''
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if words:
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w1 = words[0]
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del words[0]
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for w in words:
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w1 += " " + w
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if not w1:
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split_line = [w0]
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else:
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split_line = [w0, w1]
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else:
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split_line = line.split(None, 1)
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return split_line
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def format_heading(heading, level, os_file):
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"""Nicely print heading.
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:param heading: heading strings
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:param level: heading level
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:param os_file: open filehandle for output of RST file
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"""
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if level == 1:
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os_file.write("=" * len(heading) + "\n")
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os_file.write(heading + "\n")
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if level == 1:
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os_file.write("=" * len(heading) + "\n\n")
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elif level == 2:
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os_file.write("~" * len(heading) + "\n\n")
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elif level == 3:
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os_file.write("-" * len(heading) + "\n\n")
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else:
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os_file.write("\n")
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return
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def format_help(title, lines, os_file):
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"""Nicely print section of lines.
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:param title: help title, if exist
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:param lines: strings to format
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:param os_file: open filehandle for output of RST file
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"""
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close_entry = False
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if title:
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format_heading(title, 3, os_file)
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for line in lines:
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if not line or line[0] != ' ':
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break
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# We have to handle these cases:
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# 1. command Explanation
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# 2. command
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# Explanation on next line
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# 3. command Explanation continued
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# on next line
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# If there are more than 8 spaces, let's treat it as
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# explanation.
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if line.startswith(' '):
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# Explanation
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xline = quote_rst(line.lstrip(' '))
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if len(xline) > (MAXLINELENGTH - 2):
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# check niceness
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xline = xline.replace(' ', '\n ')
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os_file.write(" " + xline + "\n")
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continue
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# Now we have a command or parameter to handle
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split_line = extract_options(line)
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if not close_entry:
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close_entry = True
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else:
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os_file.write("\n")
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xline = split_line[0]
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# check niceness work around for long option name
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if len(xline) > (MAXLINELENGTH - 4):
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xline = xline.replace(', -', ',``\n\n``-')
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# check niceness work around for long option name, openstack
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xline = xline.replace('--nic <net-id=net-uuid,v4-fixed-ip',
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'--nic <net-id=net-uuid,``\n\n``v4-fixed-ip')
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# check niceness work around for long option name, glance
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xline = xline.replace('--sort-key {name,status,container',
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'--sort-key {name,status,``\n\n``container')
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os_file.write("``" + xline + "``\n")
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if len(split_line) > 1:
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xline = quote_rst(split_line[1])
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if len(xline) > (MAXLINELENGTH - 2):
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# check niceness
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xline = xline.replace(' ', '\n ')
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os_file.write(" " + xline + "\n")
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os_file.write("\n")
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return
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def generate_command(os_command, os_file):
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"""Convert os_command --help to RST.
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:param os_command: client command to document
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:param os_file: open filehandle for output of RST file
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"""
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if os_command == "glance":
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help_lines = subprocess.check_output([os_command, "help"],
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universal_newlines=True,
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stderr=DEVNULL).split('\n')
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else:
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help_lines = subprocess.check_output([os_command, "--help"],
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universal_newlines=True,
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stderr=DEVNULL).split('\n')
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ignore_next_lines = False
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next_line_screen = True
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line_index = -1
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in_screen = False
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subcommands = 'complete'
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for line in help_lines:
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line_index += 1
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if line and line[0] != ' ':
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# XXX: Might have whitespace before!!
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if '<subcommands>' in line:
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ignore_next_lines = False
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continue
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if 'Positional arguments' in line:
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ignore_next_lines = True
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next_line_screen = True
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os_file.write("\n\n")
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in_screen = False
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if os_command != "glance":
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format_help('Subcommands',
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help_lines[line_index + 2:], os_file)
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continue
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if line.startswith(('Optional arguments:', 'Optional:',
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'Options:', 'optional arguments')):
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if in_screen:
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os_file.write("\n\n")
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in_screen = False
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os_file.write(".. _" + os_command + "_command_options:\n\n")
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format_heading(os_command + " optional arguments", 2, os_file)
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format_help('', help_lines[line_index + 1:], os_file)
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next_line_screen = True
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ignore_next_lines = True
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continue
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# magnum and sahara
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if line.startswith('Common auth options'):
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if in_screen:
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os_file.write("\n\n")
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in_screen = False
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os_file.write("\n")
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os_file.write(os_command)
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os_file.write(".. _" + os_command + "_common_auth:\n\n")
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format_heading(os_command + " common authentication arguments",
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2, os_file)
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format_help('', help_lines[line_index + 1:], os_file)
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next_line_screen = True
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ignore_next_lines = True
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continue
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# neutron
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if line.startswith('Commands for API v2.0:'):
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if in_screen:
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os_file.write("\n\n")
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in_screen = False
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os_file.write(".. _" + os_command + "_common_api_v2:\n\n")
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format_heading(os_command + " API v2.0 commands", 2, os_file)
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format_help('', help_lines[line_index + 1:], os_file)
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next_line_screen = True
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ignore_next_lines = True
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continue
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# swift
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if line.startswith('Examples:'):
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os_file.write(".. _" + os_command + "_examples:\n\n")
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format_heading(os_command + " examples", 2, os_file)
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next_line_screen = True
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ignore_next_lines = False
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continue
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if not line.startswith('usage'):
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continue
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if not ignore_next_lines:
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if next_line_screen:
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os_file.write(".. code-block:: console\n\n")
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os_file.write(" " + line)
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next_line_screen = False
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in_screen = True
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elif line:
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os_file.write("\n " + line.rstrip())
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# subcommands (select bash-completion, complete for bash-completion)
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if 'bash-completion' in line:
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subcommands = 'bash-completion'
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if in_screen:
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os_file.write("\n\n")
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return subcommands
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def generate_subcommand(os_command, os_subcommand, os_file, extra_params,
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suffix, title_suffix):
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"""Convert os_command help os_subcommand to RST.
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:param os_command: client command to document
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:param os_subcommand: client subcommand to document
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:param os_file: open filehandle for output of RST file
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:param extra_params: Extra parameter to pass to os_command
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:param suffix: Extra suffix to add to link ID
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:param title_suffix: Extra suffix for title
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"""
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print("Documenting subcommand '%s'..." % os_subcommand)
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args = [os_command]
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if extra_params:
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args.extend(extra_params)
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if use_help_flag(os_command):
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args.append(os_subcommand)
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args.append("--help")
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else:
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args.append("help")
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args.append(os_subcommand)
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help_lines = subprocess.check_output(args,
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universal_newlines=True,
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stderr=DEVNULL)
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if 'positional arguments' in help_lines.lower():
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index = help_lines.lower().index('positional arguments')
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else:
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index = len(help_lines)
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if 'deprecated' in (help_lines[0:index].lower()):
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print("Subcommand '%s' is deprecated, skipping." % os_subcommand)
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return
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help_lines = help_lines.split('\n')
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os_subcommandid = os_subcommand.replace(' ', '_')
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os_file.write(".. _" + os_command + "_" + os_subcommandid + suffix)
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os_file.write(":\n\n")
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format_heading(os_command + " " + os_subcommand + title_suffix, 2, os_file)
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if os_command == "swift":
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next_line_screen = False
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os_file.write(".. code-block:: console\n\n")
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os_file.write("Usage: swift " + os_subcommand + "\n\n")
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in_para = True
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else:
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next_line_screen = True
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in_para = False
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if extra_params:
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extra_paramstr = ' '.join(extra_params)
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help_lines[0] = help_lines[0].replace(os_command, "%s %s" %
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(os_command, extra_paramstr))
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line_index = -1
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# Content is:
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# usage...
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#
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# Description
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#
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# Arguments
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skip_lines = False
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for line in help_lines:
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line_index += 1
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if line.startswith('Usage:') and os_command == "swift":
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line = line[len("Usage: "):]
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if line.startswith(('Arguments:', 'Positional arguments:',
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'positional arguments', 'Optional arguments',
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'optional arguments')):
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if in_para:
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in_para = False
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os_file.write("\n")
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if line.startswith(('Positional arguments',
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'positional arguments')):
|
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format_help('Positional arguments',
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help_lines[line_index + 1:], os_file)
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skip_lines = True
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continue
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elif line.startswith(('Optional arguments:',
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'optional arguments')):
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format_help('Optional arguments',
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help_lines[line_index + 1:], os_file)
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break
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else:
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format_help('Arguments', help_lines[line_index + 1:], os_file)
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break
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if skip_lines:
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continue
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if not line:
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if not in_para:
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os_file.write("\n")
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in_para = True
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continue
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if next_line_screen:
|
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os_file.write(".. code-block:: console\n\n")
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os_file.write(" " + line + "\n")
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next_line_screen = False
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elif line.startswith(' '):
|
|
# ceilometer alarm-gnocchi-aggregation-by-metrics-threshold-create
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# has 7 white space indentation
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|
if not line.isspace():
|
|
# skip blank line, such as "trove help cluster-grow" command.
|
|
os_file.write(" " + line + "\n")
|
|
else:
|
|
xline = quote_rst(line)
|
|
if (len(xline) > MAXLINELENGTH):
|
|
# check niceness
|
|
xline = xline.replace(' ', '\n')
|
|
os_file.write(xline + "\n")
|
|
|
|
if in_para:
|
|
os_file.write("\n")
|
|
|
|
|
|
def discover_subcommands(os_command, subcommands, extra_params):
|
|
"""Discover all help subcommands for the given command"
|
|
|
|
:param os_command: client command whose subcommands need to be discovered
|
|
:param subcommands: list or type ('complete' or 'bash-completion')
|
|
of subcommands to document
|
|
:param extra_params: Extra parameter to pass to os_command.
|
|
:return: the list of subcommands discovered
|
|
:rtype: list(str)
|
|
"""
|
|
if extra_params is None:
|
|
extra_params = ''
|
|
print(("Discovering subcommands of '%s' %s ..."
|
|
% (os_command, extra_params)))
|
|
blacklist = ['bash-completion', 'complete', 'help']
|
|
if type(subcommands) is str:
|
|
args = [os_command]
|
|
if extra_params:
|
|
args.extend(extra_params)
|
|
if subcommands == 'complete':
|
|
subcommands = []
|
|
args.append('complete')
|
|
for line in [x.strip() for x in
|
|
subprocess.check_output(
|
|
args,
|
|
universal_newlines=True,
|
|
stderr=DEVNULL).split('\n')
|
|
if x.strip().startswith('cmds_') and '-' in x]:
|
|
subcommand, _ = line.split('=')
|
|
subcommand = subcommand.replace('cmds_', '').replace('_', ' ')
|
|
subcommands.append(subcommand)
|
|
else:
|
|
args.append('bash-completion')
|
|
subcommands = subprocess.check_output(
|
|
args,
|
|
universal_newlines=True).strip().split('\n')[-1].split()
|
|
|
|
subcommands = sorted([o for o in subcommands if not (o.startswith('-') or
|
|
o in blacklist)])
|
|
|
|
print("%d subcommands discovered." % len(subcommands))
|
|
return subcommands
|
|
|
|
|
|
def generate_subcommands(os_command, os_file, subcommands, extra_params,
|
|
suffix, title_suffix):
|
|
"""Convert os_command help subcommands for all subcommands to RST.
|
|
|
|
:param os_command: client command to document
|
|
:param os_file: open filehandle for output of RST file
|
|
:param subcommands: list or type ('complete' or 'bash-completion')
|
|
of subcommands to document
|
|
:param extra_params: Extra parameter to pass to os_command.
|
|
:param suffix: Extra suffix to add to link ID
|
|
:param title_suffix: Extra suffix for title
|
|
"""
|
|
for subcommand in subcommands:
|
|
generate_subcommand(os_command, subcommand, os_file, extra_params,
|
|
suffix, title_suffix)
|
|
print("%d subcommands documented." % len(subcommands))
|
|
|
|
|
|
def discover_and_generate_subcommands(os_command, os_file, subcommands,
|
|
extra_params, suffix, title_suffix):
|
|
"""Convert os_command help subcommands for all subcommands to RST.
|
|
|
|
:param os_command: client command to document
|
|
:param os_file: open filehandle for output of RST file
|
|
:param subcommands: list or type ('complete' or 'bash-completion')
|
|
of subcommands to document
|
|
:param extra_params: Extra parameter to pass to os_command.
|
|
:param suffix: Extra suffix to add to link ID
|
|
:param title_suffix: Extra suffix for title
|
|
"""
|
|
subcommands = discover_subcommands(os_command, subcommands, extra_params)
|
|
generate_subcommands(os_command, os_file, subcommands, extra_params,
|
|
suffix, title_suffix)
|
|
|
|
|
|
def get_clients():
|
|
"""Load client definitions from the resource file."""
|
|
fname = os.path.join(os.path.dirname(__file__),
|
|
'resources/clients.yaml')
|
|
clients = yaml.load(open(fname, 'r'))
|
|
return clients
|
|
|
|
|
|
def document_single_project(os_command, output_dir):
|
|
"""Create documenation for os_command."""
|
|
|
|
clients = get_clients()
|
|
|
|
if os_command not in clients:
|
|
print("'%s' command not yet handled" % os_command)
|
|
sys.exit(-1)
|
|
|
|
print("Documenting '%s'" % os_command)
|
|
|
|
data = clients[os_command]
|
|
if 'name' in data:
|
|
api_name = "%s API" % data['name']
|
|
title = "%s command-line client" % data.get('title', data['name'])
|
|
else:
|
|
api_name = ''
|
|
title = data.get('title', '')
|
|
|
|
out_filename = os_command + ".rst"
|
|
out_file = open(os.path.join(output_dir, out_filename), 'w')
|
|
generate_heading(os_command, api_name, title, out_file)
|
|
subcommands = generate_command(os_command, out_file)
|
|
|
|
if os_command == 'cinder':
|
|
format_heading("Block Storage API v1 commands (DEPRECATED)",
|
|
2, out_file)
|
|
discover_and_generate_subcommands(os_command, out_file, subcommands,
|
|
None, "", "")
|
|
elif os_command == 'openstack':
|
|
format_heading("OpenStack with Identity API v2 commands", 2, out_file)
|
|
auth_type_token = ["--os-auth-type", "token"]
|
|
identity_api_v2 = ["--os-identity-api-version", "2"]
|
|
extra_params = auth_type_token + identity_api_v2
|
|
subcommands_v2 = discover_subcommands(os_command, subcommands,
|
|
extra_params)
|
|
generate_subcommands(os_command, out_file, subcommands_v2,
|
|
extra_params, "_with_identity_api_v2", "")
|
|
elif os_command == 'glance':
|
|
format_heading("Image service API v1 commands", 2, out_file)
|
|
discover_and_generate_subcommands(os_command, out_file, subcommands,
|
|
["--os-image-api-version", "1"],
|
|
"_v1", " (v1)")
|
|
else:
|
|
discover_and_generate_subcommands(os_command, out_file, subcommands,
|
|
None, "", "")
|
|
|
|
# Print subcommands for different API versions
|
|
if os_command == 'cinder':
|
|
out_file.write("\n")
|
|
format_heading("Block Storage API v2 commands", 2, out_file)
|
|
|
|
out_file.write("You can select an API version to use by adding the\n")
|
|
out_file.write(":option:`--os-volume-api-version` parameter or by\n")
|
|
out_file.write("setting the corresponding environment variable:\n\n")
|
|
|
|
out_file.write(".. code-block:: console\n\n")
|
|
out_file.write(" export OS_VOLUME_API_VERSION=2\n\n")
|
|
|
|
discover_and_generate_subcommands(os_command, out_file, subcommands,
|
|
["--os-volume-api-version", "2"],
|
|
"_v2", " (v2)")
|
|
if os_command == 'openstack':
|
|
# Print the additional subcommands possible by using v3 of identity API
|
|
out_file.write("\n")
|
|
format_heading("OpenStack with Identity API v3 commands (diff)",
|
|
2, out_file)
|
|
|
|
out_file.write("You can select the Identity API version to use by\n")
|
|
out_file.write("adding the :option:`--os-identity-api-version`\n")
|
|
out_file.write("parameter or by setting the corresponding\n")
|
|
out_file.write("environment variable:\n\n")
|
|
|
|
out_file.write(".. code-block:: console\n\n")
|
|
out_file.write(" export OS_IDENTITY_API_VERSION=3\n\n")
|
|
|
|
out_file.write("This section documents only the difference in\n")
|
|
out_file.write("subcommands available for the openstack client\n")
|
|
out_file.write("when the Identity API version is changed from\n")
|
|
out_file.write("v2 to v3.\n\n")
|
|
|
|
identity_api_v3 = ["--os-identity-api-version", "3"]
|
|
extra_params = auth_type_token + identity_api_v3
|
|
subcommands_v3 = discover_subcommands(os_command, subcommands,
|
|
extra_params)
|
|
subcommands_delta = sorted(list(set(subcommands_v3) -
|
|
set(subcommands_v2)))
|
|
generate_subcommands(os_command, out_file, subcommands_delta,
|
|
extra_params, "_with_identity_api_v3",
|
|
" (Identity API v3)")
|
|
if os_command == 'glance':
|
|
out_file.write("\n")
|
|
format_heading("Image service API v2 commands", 2, out_file)
|
|
out_file.write("You can select an API version to use by adding the\n")
|
|
out_file.write(":option:`--os-image-api-version` parameter or by\n")
|
|
out_file.write("setting the corresponding environment variable:\n\n")
|
|
|
|
out_file.write(".. code-block:: console\n\n")
|
|
out_file.write(" export OS_IMAGE_API_VERSION=2\n\n")
|
|
|
|
discover_and_generate_subcommands(os_command, out_file, subcommands,
|
|
["--os-image-api-version", "2"],
|
|
"_v2", " (v2)")
|
|
|
|
if os_command == 'glance':
|
|
out_file.write(".. include:: glance_property_keys.rst\n")
|
|
|
|
print("Finished.\n")
|
|
out_file.close()
|
|
|
|
|
|
def main():
|
|
print("OpenStack Auto Documenting of Commands (using "
|
|
"openstack-doc-tools version %s)\n"
|
|
% os_doc_tools.__version__)
|
|
|
|
clients = get_clients()
|
|
api_clients = sorted([x for x in clients if not x.endswith('-manage')])
|
|
manage_clients = sorted([x for x in clients if x.endswith('-manage')])
|
|
all_clients = api_clients + manage_clients
|
|
|
|
parser = argparse.ArgumentParser(description="Generate RST files "
|
|
"to document python-PROJECTclients.")
|
|
parser.add_argument('client', nargs='?',
|
|
help="OpenStack command to document. One of: " +
|
|
", ".join(all_clients) + ".")
|
|
parser.add_argument("--all", help="Document all clients. "
|
|
"Namely " + ", ".join(all_clients) + ".",
|
|
action="store_true")
|
|
parser.add_argument("--all-api", help="Document all API clients. "
|
|
"Namely " + ", ".join(clients.keys()) + ".",
|
|
action="store_true")
|
|
parser.add_argument("--all-manage", help="Document all manage clients. "
|
|
"Namely " + ", ".join(manage_clients) + ".",
|
|
action="store_true")
|
|
parser.add_argument("--output-dir", default=".",
|
|
help="Directory to write generated files to")
|
|
prog_args = parser.parse_args()
|
|
|
|
if prog_args.all or prog_args.all_api or prog_args.all_manage:
|
|
if prog_args.all or prog_args.all_api:
|
|
for client in clients.keys():
|
|
document_single_project(client, prog_args.output_dir)
|
|
if prog_args.all or prog_args.all_manage:
|
|
for client in manage_clients:
|
|
document_single_project(client, prog_args.output_dir)
|
|
elif prog_args.client is None:
|
|
parser.print_help()
|
|
sys.exit(1)
|
|
else:
|
|
document_single_project(prog_args.client, prog_args.output_dir)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|