mirror of https://github.com/ceph/ceph
468 lines
14 KiB
Python
468 lines
14 KiB
Python
import io
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import os
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import sys
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import contextlib
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from docutils.parsers.rst import directives
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from docutils.parsers.rst import Directive
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from jinja2 import Template
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from pcpp.preprocessor import Preprocessor
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from sphinx.util import logging
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from sphinx.util.console import bold
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from importlib import reload
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logger = logging.getLogger(__name__)
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class Flags:
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NOFORWARD = (1 << 0)
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OBSOLETE = (1 << 1)
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DEPRECATED = (1 << 2)
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MGR = (1 << 3)
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POLL = (1 << 4)
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HIDDEN = (1 << 5)
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VALS = {
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NOFORWARD: 'no_forward',
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OBSOLETE: 'obsolete',
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DEPRECATED: 'deprecated',
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MGR: 'mgr',
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POLL: 'poll',
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HIDDEN: 'hidden',
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}
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def __init__(self, fs):
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self.fs = fs
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def __contains__(self, other):
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return other in str(self)
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def __str__(self):
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keys = Flags.VALS.keys()
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es = {Flags.VALS[k] for k in keys if self.fs & k == k}
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return ', '.join(sorted(es))
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def __bool__(self):
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return bool(str(self))
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class CmdParam(object):
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t = {
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'CephInt': 'int',
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'CephString': 'str',
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'CephChoices': 'str',
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'CephPgid': 'str',
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'CephOsdName': 'str',
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'CephPoolname': 'str',
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'CephObjectname': 'str',
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'CephUUID': 'str',
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'CephEntityAddr': 'str',
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'CephIPAddr': 'str',
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'CephName': 'str',
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'CephBool': 'bool',
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'CephFloat': 'float',
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'CephFilepath': 'str',
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}
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bash_example = {
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'CephInt': '1',
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'CephString': 'string',
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'CephChoices': 'choice',
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'CephPgid': '0',
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'CephOsdName': 'osd.0',
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'CephPoolname': 'poolname',
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'CephObjectname': 'objectname',
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'CephUUID': 'uuid',
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'CephEntityAddr': 'entityaddr',
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'CephIPAddr': '0.0.0.0',
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'CephName': 'name',
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'CephBool': 'true',
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'CephFloat': '0.0',
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'CephFilepath': '/path/to/file',
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}
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def __init__(self, type, name,
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who=None, n=None, req=True, range=None, strings=None,
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goodchars=None, positional=True):
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self.type = type
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self.name = name
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self.who = who
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self.n = n == 'N'
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self.req = req != 'false'
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self.range = range.split('|') if range else []
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self.strings = strings.split('|') if strings else []
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self.goodchars = goodchars
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self.positional = positional != 'false'
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assert who == None
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def help(self):
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advanced = []
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if self.type != 'CephString':
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advanced.append(self.type + ' ')
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if self.range:
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advanced.append('range= ``{}`` '.format('..'.join(self.range)))
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if self.strings:
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advanced.append('strings=({}) '.format(' '.join(self.strings)))
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if self.goodchars:
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advanced.append('goodchars= ``{}`` '.format(self.goodchars))
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if self.n:
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advanced.append('(can be repeated)')
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advanced = advanced or ["(string)"]
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return ' '.join(advanced)
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def mk_example_value(self):
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if self.type == 'CephChoices' and self.strings:
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return self.strings[0]
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if self.range:
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return self.range[0]
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return CmdParam.bash_example[self.type]
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def mk_bash_example(self, simple):
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val = self.mk_example_value()
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if self.type == 'CephBool':
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return '--' + self.name
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if simple:
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if self.type == "CephChoices" and self.strings:
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return val
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elif self.type == "CephString" and self.name != 'who':
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return 'my_' + self.name
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else:
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return CmdParam.bash_example[self.type]
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else:
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return '--{}={}'.format(self.name, val)
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class CmdCommand(object):
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def __init__(self, prefix, args, desc,
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module=None, perm=None, flags=0, poll=None):
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self.prefix = prefix
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self.params = sorted([CmdParam(**arg) for arg in args],
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key=lambda p: p.req, reverse=True)
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self.help = desc
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self.module = module
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self.perm = perm
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self.flags = Flags(flags)
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self.needs_overload = False
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def is_reasonably_simple(self):
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if len(self.params) > 3:
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return False
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if any(p.n for p in self.params):
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return False
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return True
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def mk_bash_example(self):
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simple = self.is_reasonably_simple()
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line = ' '.join(['ceph', self.prefix] + [p.mk_bash_example(simple) for p in self.params])
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return line
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class Sig:
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@staticmethod
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def _parse_arg_desc(desc):
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try:
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return dict(kv.split('=', 1) for kv in desc.split(',') if kv)
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except ValueError:
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return desc
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@staticmethod
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def parse_cmd(cmd):
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parsed = [Sig._parse_arg_desc(s) or s for s in cmd.split()]
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prefix = [s for s in parsed if isinstance(s, str)]
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params = [s for s in parsed if not isinstance(s, str)]
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return ' '.join(prefix), params
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@staticmethod
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def parse_args(args):
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return [Sig._parse_arg_desc(arg) for arg in args]
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TEMPLATE = '''
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{%- set punct_char = '-' -%}
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{# add a header if we have multiple commands in this section #}
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{% if commands | length > 1 %}
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{{ section }}
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{{ section | length * '-' }}
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{# and demote the subsection #}
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{% set punct_char = '^' %}
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{% endif %}
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{% for command in commands %}
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{{ command.prefix }}
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{{ command.prefix | length * punct_char }}
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{{ command.help | wordwrap(70) }}
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:Example command:
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.. code-block:: bash
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{{ command.mk_bash_example() | wordwrap(70) | indent(9) }}
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{%- if command.params %}
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:Parameters:{% for param in command.params -%}
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{{" -" | indent(12, not loop.first) }} **{% if param.positional %}{{param.name}}{% else %}--{{param.name}}{% endif %}**: {{ param.help() }}
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{% endfor %}
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{% endif %}
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:Ceph Module: {{ command.module }}
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:Required Permissions: ``{{ command.perm }}``
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{%- if command.flags %}
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:Command Flags: ``{{ command.flags }}``
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{% endif %}
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{% endfor %}
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'''
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def group_by_prefix(commands):
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last_prefix = None
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grouped = []
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for cmd in commands:
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prefix = cmd.prefix.split(' ', 1)[0]
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if prefix == last_prefix:
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grouped.append(cmd)
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elif last_prefix is None:
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last_prefix = prefix
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grouped = [cmd]
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else:
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yield last_prefix, grouped
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last_prefix = prefix
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grouped = [cmd]
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assert grouped
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yield last_prefix, grouped
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def render_commands(commands):
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rendered = io.StringIO()
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for section, grouped in group_by_prefix(commands):
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logger.debug('rendering commands: %s: %d', section, len(grouped))
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rendered.write(Template(TEMPLATE).render(
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section=section,
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commands=grouped))
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return rendered.getvalue().split('\n')
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class CephMgrCommands(Directive):
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"""
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extracts commands from specified mgr modules
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"""
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has_content = True
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required_arguments = 1
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optional_arguments = 0
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final_argument_whitespace = False
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option_spec = {'python_path': directives.unchanged}
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def _normalize_path(self, dirname):
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my_dir = os.path.dirname(os.path.realpath(__file__))
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src_dir = os.path.abspath(os.path.join(my_dir, '../..'))
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return os.path.join(src_dir, dirname)
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def _is_mgr_module(self, dirname, name):
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if not os.path.isdir(os.path.join(dirname, name)):
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return False
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if not os.path.isfile(os.path.join(dirname, name, '__init__.py')):
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return False
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return name not in ['tests']
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@contextlib.contextmanager
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def mocked_modules(self):
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# src/pybind/mgr/tests
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from tests import mock
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mock_imports = ['rados',
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'rbd',
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'cephfs',
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'dateutil',
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'dateutil.parser']
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# make dashboard happy
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mock_imports += ['OpenSSL',
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'jwt',
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'bcrypt',
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'jsonpatch',
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'rook.rook_client',
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'rook.rook_client.ceph',
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'rook.rook_client._helper',
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'cherrypy=3.2.3']
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# make diskprediction_local happy
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mock_imports += ['numpy',
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'scipy']
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for m in mock_imports:
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args = {}
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parts = m.split('=', 1)
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mocked = parts[0]
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if len(parts) > 1:
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args['__version__'] = parts[1]
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sys.modules[mocked] = mock.Mock(**args)
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try:
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yield
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finally:
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for m in mock_imports:
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mocked = m.split('=', 1)[0]
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sys.modules.pop(mocked)
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def _collect_module_commands(self, name):
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with self.mocked_modules():
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logger.info(bold(f"loading mgr module '{name}'..."))
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mgr_mod = __import__(name, globals(), locals(), [], 0)
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reload(mgr_mod)
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from tests import M
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def subclass(x):
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try:
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return issubclass(x, M)
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except TypeError:
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return False
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ms = [c for c in mgr_mod.__dict__.values()
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if subclass(c) and 'Standby' not in c.__name__]
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[m] = ms
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assert isinstance(m.COMMANDS, list)
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return m.COMMANDS
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def _normalize_command(self, command):
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if 'handler' in command:
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del command['handler']
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if 'cmd' in command:
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command['prefix'], command['args'] = Sig.parse_cmd(command['cmd'])
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del command['cmd']
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else:
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command['args'] = Sig.parse_args(command['args'])
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command['flags'] = (1 << 3)
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command['module'] = 'mgr'
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return command
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def _render_cmds(self, commands):
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lines = render_commands(commands)
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assert lines
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lineno = self.lineno - self.state_machine.input_offset - 1
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source = self.state_machine.input_lines.source(lineno)
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self.state_machine.insert_input(lines, source)
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def run(self):
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module_path = self._normalize_path(self.arguments[0])
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sys.path.insert(0, module_path)
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for path in self.options.get('python_path', '').split(':'):
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sys.path.insert(0, self._normalize_path(path))
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os.environ['UNITTEST'] = 'true'
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modules = [name for name in os.listdir(module_path)
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if self._is_mgr_module(module_path, name)]
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commands = sum([self._collect_module_commands(name) for name in modules], [])
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cmds = [CmdCommand(**self._normalize_command(c)) for c in commands]
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cmds = [cmd for cmd in cmds if 'hidden' not in cmd.flags]
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cmds = sorted(cmds, key=lambda cmd: cmd.prefix)
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self._render_cmds(cmds)
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if 'pybind_rgw_mod' in sys.modules:
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orig_rgw_mod = sys.modules['pybind_rgw_mod']
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sys.modules['rgw'] = orig_rgw_mod
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return []
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class MyProcessor(Preprocessor):
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def __init__(self):
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super().__init__()
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self.cmds = []
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self.undef('__DATE__')
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self.undef('__TIME__')
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self.expand_linemacro = False
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self.expand_filemacro = False
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self.expand_countermacro = False
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self.line_directive = '#line'
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self.define("__PCPP_VERSION__ " + '')
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self.define("__PCPP_ALWAYS_FALSE__ 0")
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self.define("__PCPP_ALWAYS_TRUE__ 1")
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def eval(self, src):
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_cmds = []
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NONE = 0
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NOFORWARD = (1 << 0)
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OBSOLETE = (1 << 1)
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DEPRECATED = (1 << 2)
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MGR = (1 << 3)
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POLL = (1 << 4)
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HIDDEN = (1 << 5)
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TELL = (1 << 6)
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def FLAG(a):
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return a
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def COMMAND(cmd, desc, module, perm):
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_cmds.append({
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'cmd': cmd,
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'desc': desc,
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'module': module,
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'perm': perm
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})
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def COMMAND_WITH_FLAG(cmd, desc, module, perm, flag):
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_cmds.append({
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'cmd': cmd,
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'desc': desc,
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'module': module,
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'perm': perm,
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'flags': flag
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})
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self.parse(src)
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out = io.StringIO()
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self.write(out)
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out.seek(0)
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s = out.read()
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exec(s, globals(), locals())
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return _cmds
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class CephMonCommands(Directive):
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"""
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extracts commands from specified header file
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"""
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has_content = True
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required_arguments = 1
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optional_arguments = 0
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final_argument_whitespace = True
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def _src_dir(self):
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my_dir = os.path.dirname(os.path.realpath(__file__))
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return os.path.abspath(os.path.join(my_dir, '../..'))
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def _parse_headers(self, headers):
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src_dir = self._src_dir()
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src = '\n'.join(f'#include "{src_dir}/{header}"' for header in headers)
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return MyProcessor().eval(src)
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def _normalize_command(self, command):
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if 'handler' in command:
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del command['handler']
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command['prefix'], command['args'] = Sig.parse_cmd(command['cmd'])
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del command['cmd']
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return command
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def _render_cmds(self, commands):
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lines = render_commands(commands)
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assert lines
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lineno = self.lineno - self.state_machine.input_offset - 1
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source = self.state_machine.input_lines.source(lineno)
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self.state_machine.insert_input(lines, source)
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def run(self):
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headers = self.arguments[0].split()
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commands = self._parse_headers(headers)
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cmds = [CmdCommand(**self._normalize_command(c)) for c in commands]
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cmds = [cmd for cmd in cmds if 'hidden' not in cmd.flags]
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cmds = sorted(cmds, key=lambda cmd: cmd.prefix)
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self._render_cmds(cmds)
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return []
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def setup(app):
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app.add_directive("ceph-mgr-commands", CephMgrCommands)
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app.add_directive("ceph-mon-commands", CephMonCommands)
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return {
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'version': '0.1',
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'parallel_read_safe': True,
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'parallel_write_safe': True,
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}
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