diff options
Diffstat (limited to 'doc')
-rw-r--r-- | doc/development/option_parsing.txt | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/doc/development/option_parsing.txt b/doc/development/option_parsing.txt index 091f43cdd..e14031e1e 100644 --- a/doc/development/option_parsing.txt +++ b/doc/development/option_parsing.txt @@ -174,28 +174,32 @@ The normal implementation pattern is this: #. Define all of your subcommands as children of :class:`Bcfg2.Options.Subcommand`. -#. Define a :class:`Bcfg2.Options.CommandRegistry` object that will be +#. Create a :class:`Bcfg2.Options.CommandRegistry` object that will be used to register all of the commands. Registering a command collect its options and adds it as a :class:`Bcfg2.Options.Subparser` option group to the main option parser. -#. Register your commands with - :func:`Bcfg2.Options.register_commands`, parse options, and run. +#. Register your commands with the + :func:`Bcfg2.Options.CommandRegistry.register_commands` method of + your ``CommandRegistry`` object. +#. Add options from the + :attr:`Bcfg2.Options.CommandRegistry.command_options` + attribute to the option parser. +#. Parse options, and run. :mod:`Bcfg2.Server.Admin` provides a fairly simple implementation, -where the CLI class is itself the command registry: +where the CLI class subclasses the command registry: .. code-block:: python class CLI(Bcfg2.Options.CommandRegistry): def __init__(self): Bcfg2.Options.CommandRegistry.__init__(self) - Bcfg2.Options.register_commands(self.__class__, - globals().values(), - parent=AdminCmd) + self.register_commands(globals().values(), parent=AdminCmd) parser = Bcfg2.Options.get_parser( description="Manage a running Bcfg2 server", components=[self]) + parser.add_options(self.subcommand_options) parser.parse() In this case, commands are collected from amongst all global variables @@ -208,9 +212,7 @@ At a minimum, the :func:`Bcfg2.Options.Subcommand.run` method must be overridden, and a docstring written. .. autoclass:: Subcommand -.. autoclass:: HelpCommand .. autoclass:: CommandRegistry -.. autofunction:: register_commands Actions ------- |