19 Jun 2021 02:14:59 UTC
- Distribution: App-Cmd
- Module version: 0.334
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- License: perl_5
- Perl: v5.20.0
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- Latest version++ed by:16 non-PAUSE usersRJBS Ricardo SIGNES 😄and 28 contributors
- Ricardo Signes
- Adam Prime
- Andreas Hernitscheck
- A. Sinan Unur
- Chris 'BinGOs' Williams
- David Golden
- David Steinbrunner
- Davor Cubranic
- Denis Ibaev
- Diab Jerius
- Glenn Fowler
- Ingy dot Net
- Jakob Voss
- Jérôme Quelin
- John SJ Anderson
- Karen Etheridge
- Kent Fredric
- Lucas Theisen
- Matthew Astley
- Olivier Mengué
- Ryan C. Thompson
- Salvatore Bonaccorso
- Sergey Romanov
- Stephan Loyd
- Stephen Caldwell
- Yuval Kogman
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App::Cmd::Command - a base class for App::Cmd commands
This module has a long-term perl support period. That means it will not require a version of perl released fewer than five years ago.
Although it may work on older versions of perl, no guarantee is made that the minimum required version will not be increased. The version may be increased for any reason, and there is no promise that patches will be accepted to lower the minimum required perl.
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,
$appis the App::Cmd object that is invoking the command.
This returns a new instance of the command plugin. Probably only
prepareshould use this.
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.
executemethod 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!
This method returns the App::Cmd object into which this command is plugged.
This method returns the usage object for this command. (See Getopt::Long::Descriptive).
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_namesand then append aliases.
This method should be overridden to provide a usage string. (This is the first argument passed to
If not overridden, it returns "%c COMMAND %o"; COMMAND is the first item in the result of the
This method should be overridden to provide option specifications. (This is list of arguments passed to
describe_optionsfrom Getopt::Long::Descriptive, after the first.)
If not overridden, it returns an empty list.
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.
$self->usage_error("This command must not be run by root!");
This method should be called to die with human-friendly usage output, during
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.
This method can be overridden to provide full option description. It is used by the built-in help command.
If not overridden, it uses Pod::Usage to extract the description from the module's Pod DESCRIPTION section or the empty string.
Ricardo Signes <firstname.lastname@example.org>
This software is copyright (c) 2021 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.