Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Contact Us
Online Help
Domain Status
Man Pages

Virtual Servers

Topology Map

Server Agreement
Year 2038

USA Flag



Man Pages
MooX::Options(3) User Contributed Perl Documentation MooX::Options(3)

MooX::Options - Explicit Options eXtension for Object Class

version 4.010

Create a command line tool with your Mo, Moo, Moose objects.
Everything is explicit. You have an "option" keyword to replace the usual "has" to explicitly use your attribute into the command line.
The "option" keyword takes additional parameters and uses Getopt::Long::Descriptive to generate a command line tool.

In :
  package myOptions;
  use Moo;
  use MooX::Options;
  option 'show_this_file' => (
      is => 'ro',
      format => 's',
      required => 1,
      doc => 'the file to display'
In :
  use feature 'say';
  use myOptions;
  use Path::Class;
  my $opt = myOptions->new_with_options;
  say "Content of the file : ",
To use it :
  perl --show_this_file=myFile.txt
  Content of the file: myFile content
The help message :
  perl --help
  USAGE: [-h] [long options...]
      --show_this_file: String
          the file to display
      -h --help:
          show this help message
          show the manual
The usage message :
  perl --usage
  USAGE: [ --show_this_file=String ] [ --usage ] [ --help ] [ --man ]
The manual :
  perl --man

The list of the methods automatically imported into your class.

It will parse your command line params and your inline params, validate and call the "new" method.
  myTool --str=ko
  t->new_with_options()->str # ko
  t->new_with_options(str => 'ok')->str #ok

The "option" keyword replaces the "has" method and adds support for special options for the command line only.
See "OPTION PARAMETERS" for the documentation.

It displays the usage message and returns the exit code.
  my $t = t->new_with_options();
  my $exit_code = 1;
  my $pre_message = "str is not valid";
  $t->options_usage($exit_code, $pre_message);
This method is also automatically fired if the command option "--help" is passed.
  myTool --help

It displays the manual.
  my $t = t->new_with_options();
This is automatically fired if the command option "--man" is passed.
  myTool --man

It displays a short version of the help message.
  my $t = t->new_with_options();
This is automatically fired if the command option "--usage" is passed.
  myTool --usage

The list of parameters supported by MooX::Options.

Passes extra arguments for Getopt::Long::Descriptive. It is useful if you want to configure Getopt::Long.
  use MooX::Options flavour => [qw( pass_through )];
Any flavour is passed to Getopt::Long as a configuration, check the doc to see what is possible.

By default, @ARGV is protected. If you want to do something else on it, use this option and it will change the real @ARGV.
  use MooX::Options protect_argv => 0;

If you have Role with options and you want to deactivate some of them, you can use this parameter. In that case, the "option" keyword will just work like an "has".
  use MooX::Options skip_options => [qw/multi/];

By default, arguments passed to "new_with_options" have a higher priority than the command line options.
This parameter will give the command line an higher priority.
  use MooX::Options prefer_commandline => 1;

This parameter will load MooX::ConfigFromFile in your module. The config option will be used between the command line and parameters.
myTool :
  use MooX::Options with_config_from_file => 1;
In /etc/myTool.json
  {"test" : 1}

The keyword "option" extend the keyword "has" with specific parameters for the command line.

Documentation for the command line option.

Documentation for the man page. By default the "doc" parameter will be used.
See also Man parameters to get more examples how to build a nice man page.

This attribute indicates that the parameter is mandatory. This attribute is not really used by MooX::Options but ensures that consistent error message will be displayed.

Format of the params, same as Getopt::Long::Descriptive.
i : integer
i@: array of integer
s : string
s@: array of string
f : float value
By default, it's a boolean value.
Take a look of available formats with Getopt::Long::Descriptive.
You need to understand that everything is explicit here. If you use Moose and your attribute has "isa => 'Array[Int]'", that will not imply the format "i@".

The parameter will be treated like a json string.
  option 'hash' => (is => 'ro', json => 1);
  myTool --hash='{"a":1,"b":2}' # hash = { a => 1, b => 2 }

It adds the negative version for the option.
  option 'verbose' => (is => 'ro', negativable => 1);
  myTool --verbose    # verbose = 1
  myTool --no-verbose # verbose = 0

It appends to the "format" the array attribute "@".
I advise to add a default value to your attribute to always have an array. Otherwise the default value will be an undefined value.
  option foo => (is => 'rw', format => 's@', default => sub { [] });
  myTool --foo="abc" --foo="def" # foo = ["abc", "def"]

For repeatable option, you can add the autosplit feature with your specific parameters.
  option test => (is => 'ro', format => 'i@', default => sub {[]}, autosplit => ',');
  myTool --test=1 --test=2 # test = (1, 2)
  myTool --test=1,2,3      # test = (1, 2, 3)
It will also handle quoted params with the autosplit.
  option testStr => (is => 'ro', format => 's@', default => sub {[]}, autosplit => ',');
  myTool --testStr='a,b,"c,d",e,f' # testStr ("a", "b", "c,d", "e", "f")

Long option can also have short version or aliased.
  option 'verbose' => (is => 'ro', short => 'v');
  myTool --verbose # verbose = 1
  myTool -v        # verbose = 1
  option 'account_id' => (is => 'ro', format => 'i', short => 'a|id');
  myTool --account_id=1
  myTool -a=1
  myTool --id=1
You can also use a shorter option without attribute :
  option 'account_id' => (is => 'ro', format => 'i');
  myTool --acc=1
  myTool --account=1

Specifies the order of the attribute. If you want to push some attributes at the end of the list. By default all options have an order set to 0, and options are sorted by their names.
  option 'at_the_end' => (is => 'ro', order => 999);

Man parameters
Using namespace::clean
Manage your tools with MooX::Cmd

Slide3D about MooX::Options <>

Matt S. Trout (mst) <> : For his patience and advice.
Tomas Doran (t0m) <> : To help me release the new version, and using it :)
Torsten Raudssus (Getty) : to use it a lot in DuckDuckGo <> (go to see MooX module also)
Jens Rehsack (REHSACK) : Use with PkgSrc <>, and many really good idea (MooX::Cmd, MooX::ConfigFromFile, and more to come I'm sure)

Please report any bugs or feature requests on the bugtracker website
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

celogeek <>

This software is copyright (c) 2013 by celogeek <>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
2019-01-01 perl v5.28.1

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.