NAME

App::CLI - Dispatcher module for command line interface programs

SYNOPSIS

    package MyApp;
    use base 'App::CLI';        # the DISPATCHER of your App
                                # it's not necessary putting the dispatcher
                                # on the top level of your App

    package main;

    MyApp->dispatch;            # call dispatcher in where you want


    package MyApp::List;
    use base qw(App::CLI::Command); # any (SUB)COMMAND of your App

    use constant options => (
        "h|help"   => "help",
        "verbose"  => "verbose",
        'n|name=s'  => 'name',
    );

    use constant subcommands => qw(User Nickname type); # if you want subcommands
                                                        # automatically dispatch to subcommands
                                                        # when invoke $ myapp list [user|nickname|--type]
                                                        # note 'type' is not capitalized
                                                        # it is a deprecated subcommand

    sub run {
        my ($self, @args) = @_;

        print "verbose" if $self->{verbose};
        my $name = $self->{name}; # get arg following long option --name

        if ($self->{help}) {
            # if $ myapp list --help or $ myapp list -h
            # just only output PODs
        } else {
            # do something when imvoking $ my app list
            # without subcommand and --help
        }
    }


    package MyApp::List::User;
    use base qw(App::CLI::Command);
    use constant options => (
        "h|help"  =>  "help",
    );

    sub run {
        my ($self,@args) = @_;
        # code for listing user
    }


    pakcage MyApp::List::Nickname;
    use base qw(App::CLI::Command);
    use constant options => (
        "sort=s"  =>  "sort",
    );

    sub run {
        my ($self,@args) = @_;
        # code for listing nickname
    }

    package MyApp::List::type;   # old genre of subcommand could not cascade infinitely
    use base qw(MyApp::List);    # should inherit its parent's command

    sub run {
        my ($self, @args);
        # run to here when invoking $ myapp list --type
    }


    package MyApp::Help;
    use base 'App::CLI::Command::Help';

    use constant options => (
        'verbose' => 'verbose',
    );

    sub run {
        my ($self, @arg) = @_;
        # do something
        $self->SUPER(@_); # App::CLI::Command::Help would output POD of each command
    }

DESCRIPTION

App::CLI dispatches CLI (command line interface) based commands into command classes. It also supports subcommand and per-command options.

get_opt([@config], %opt_map)

Give options map, processed by Getopt::Long::Parser.

Interface of dispatcher

cmd_map($cmd)

Find package name of subcommand in constant %alias.

If it's found, return ucfirst of the package name, otherwise, return ucfirst of $cmd itself.

get_cmd($cmd, @arg)

Return subcommand of first level via $ARGV[0].

SEE ALSO

App::CLI::Command Getopt::Long

MODULES USE App::CLI

Jifty::Script, App::gh, App::I18N

AUTHORS

Chia-liang Kao <clkao@clkao.org>

Yo-An Lin <cornelius.howl@gmail.com>

Shelling <navyblueshellingford@gmail.com>

Paul Cochrane <paul@liekut.de> (current maintainer)

COPYRIGHT

Copyright 2005-2006 by Chia-liang Kao <clkao@clkao.org>.

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

See http://www.perl.com/perl/misc/Artistic.html