Mojolicious::Command

Section: User Contributed Perl Documentation (3)
Updated: 2018-11-22
Page Index
 

NAME

Mojolicious::Command - Command base class  

SYNOPSIS

  # Lowercase command name
  package Mojolicious::Command::mycommand;
  use Mojo::Base 'Mojolicious::Command';

  # Short description
  has description => 'My first Mojo command';

  # Usage message from SYNOPSIS
  has usage => sub { shift->extract_usage };

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

    # Magic here! :)
  }

  1;

  =head1 SYNOPSIS

    Usage: APPLICATION mycommand [OPTIONS]

    Options:
      -s, --something   Does something

  =cut

 

DESCRIPTION

Mojolicious::Command is an abstract base class for Mojolicious commands.

See ``COMMANDS'' in Mojolicious::Commands for a list of commands that are available by default.  

ATTRIBUTES

Mojolicious::Command implements the following attributes.  

app

  my $app  = $command->app;
  $command = $command->app(Mojolicious->new);

Application for command, defaults to a Mojo::HelloWorld object. Note that this attribute is weakened.

  # Introspect
  say "Template path: $_" for @{$command->app->renderer->paths};

 

description

  my $description = $command->description;
  $command        = $command->description('Foo');

Short description of command, used for the command list.  

quiet

  my $bool = $command->quiet;
  $command = $command->quiet($bool);

Limited command output.  

template

  my $template = $command->template;
  $command     = $command->template({vars => 1});

Attribute values passed to Mojo::Template objects used to render templates with ``render_data'', defaults to activating "vars".  

usage

  my $usage = $command->usage;
  $command  = $command->usage('Foo');

Usage information for command, used for the help screen.  

METHODS

Mojolicious::Command inherits all methods from Mojo::Base and implements the following new ones.  

chmod_file

  $command = $command->chmod_file('/home/sri/foo.txt', 0644);

Change mode of a file.  

chmod_rel_file

  $command = $command->chmod_rel_file('foo/foo.txt', 0644);

Portably change mode of a file relative to the current working directory.  

create_dir

  $command = $command->create_dir('/home/sri/foo/bar');

Create a directory if it does not exist already.  

create_rel_dir

  $command = $command->create_rel_dir('foo/bar/baz');

Portably create a directory relative to the current working directory if it does not exist already.  

extract_usage

  my $usage = $command->extract_usage;

Extract usage message from the SYNOPSIS section of the file this method was called from with ``extract_usage'' in Mojo::Util.  

help

  $command->help;

Print usage information for command.  

rel_file

  my $path = $command->rel_file('foo/bar.txt');

Return a Mojo::File object relative to the current working directory.  

render_data

  my $data = $command->render_data('foo_bar');
  my $data = $command->render_data('foo_bar', @args);
  my $data = $command->render_data('foo_bar', {foo => 'bar'});

Render a template from the "DATA" section of the command class with Mojo::Loader and Mojo::Template. The template can be configured with ``template''.  

render_to_file

  $command = $command->render_to_file('foo_bar', '/home/sri/foo.txt');
  $command = $command->render_to_file('foo_bar', '/home/sri/foo.txt', @args);
  $command = $command->render_to_file(
    'foo_bar', '/home/sri/foo.txt', {foo => 'bar'});

Render a template with ``render_data'' to a file if it does not exist already, and create the directory if necessary.  

render_to_rel_file

  $command = $command->render_to_rel_file('foo_bar', 'foo/bar.txt');
  $command = $command->render_to_rel_file('foo_bar', 'foo/bar.txt', @args);
  $command = $command->render_to_rel_file(
    'foo_bar', 'foo/bar.txt', {foo => 'bar'});

Portably render a template with ``render_data'' to a file relative to the current working directory if it does not exist already, and create the directory if necessary.  

run

  $command->run;
  $command->run(@ARGV);

Run command. Meant to be overloaded in a subclass.  

write_file

  $command = $command->write_file('/home/sri/foo.txt', 'Hello World!');

Write text to a file if it does not exist already, and create the directory if necessary.  

write_rel_file

  $command = $command->write_rel_file('foo/bar.txt', 'Hello World!');

Portably write text to a file relative to the current working directory if it does not exist already, and create the directory if necessary.  

SEE ALSO

Mojolicious, Mojolicious::Guides, <https://mojolicious.org>.


 

Index

NAME
SYNOPSIS
DESCRIPTION
ATTRIBUTES
app
description
quiet
template
usage
METHODS
chmod_file
chmod_rel_file
create_dir
create_rel_dir
extract_usage
help
rel_file
render_data
render_to_file
render_to_rel_file
run
write_file
write_rel_file
SEE ALSO
LinuxReviews : manual page archive : man3pm