App::Cmd::Command(3pm)					User Contributed Perl Documentation				    App::Cmd::Command(3pm)

NAME

       App::Cmd::Command - a base class for App::Cmd commands

VERSION

       version 0.318

METHODS

   prepare
	 my ($cmd, $opt, $args) = $class->prepare($app, @args);

       This method is the primary way in which App::Cmd::Command objects are built.  Given the remaining command line arguments meant for the
       command, it returns the Command object, parsed options (as a hashref), and remaining arguments (as an arrayref).

       In the usage above, $app is the App::Cmd object that is invoking the command.

   new
       This returns a new instance of the command plugin.  Probably only "prepare" should use this.

   execute
	 $command_plugin->execute(\%opt, @args);

       This method does whatever it is the command should do!  It is passed a hash reference of the parsed command-line options and an array
       reference of left over arguments.

       If no "execute" method is defined, it will try to call "run" -- but it will warn about this behavior during testing, to remind you to fix
       the method name!

   app
       This method returns the App::Cmd object into which this command is plugged.

   usage
       This method returns the usage object for this command.  (See Getopt::Long::Descriptive).

   command_names
       This method returns a list of command names handled by this plugin. The first item returned is the 'canonical' name of the command.

       If this method is not overridden by an App::Cmd::Command subclass, it will return the last part of the plugin's package name, converted to
       lowercase.  For example, YourApp::Cmd::Command::Init will, by default, handle the command "init".

       Subclasses should generally get the superclass value of "command_names" and then append aliases.

   usage_desc
       This method should be overridden to provide a usage string.  (This is the first argument passed to "describe_options" from
       Getopt::Long::Descriptive.)

       If not overridden, it returns "%c COMMAND %o";  COMMAND is the first item in the result of the "command_names" method.

   opt_spec
       This method should be overridden to provide option specifications.  (This is list of arguments passed to "describe_options" from
       Getopt::Long::Descriptive, after the first.)

       If not overridden, it returns an empty list.

   validate_args
	 $command_plugin->validate_args(\%opt, @args);

       This method is passed a hashref of command line options (as processed by Getopt::Long::Descriptive) and an arrayref of leftover arguments.
       It may throw an exception (preferably by calling "usage_error", below) if they are invalid, or it may do nothing to allow processing to
       continue.

   usage_error
	 $self->usage_error("This command must not be run by root!");

       This method should be called to die with human-friendly usage output, during "validate_args".

   abstract
       This method returns a short description of the command's purpose.  If this method is not overridden, it will return the abstract from the
       module's Pod.  If it can't find the abstract, it will look for a comment starting with "ABSTRACT:" like the ones used by
       Pod::Weaver::Section::Name.

   description
       This method should be overridden to provide full option description. It is used by the built-in App::Cmd::Command::help command.

       If not overridden, it returns an empty string.

AUTHOR

       Ricardo Signes <rjbs@cpan.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2012 by Ricardo Signes.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.14.2							    2012-05-05						    App::Cmd::Command(3pm)