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.\" ========================================================================
.\"
.IX Title "Mojolicious::Command 3pm"
.TH Mojolicious::Command 3pm "2014-09-27" "perl v5.20.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Mojolicious::Command \- Command base class
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\&  # Lowercase command name
\&  package Mojolicious::Command::mycommand;
\&  use Mojo::Base \*(AqMojolicious::Command\*(Aq;
\&
\&  # Short description
\&  has description => \*(AqMy first Mojo command.\*(Aq;
\&
\&  # Short usage message
\&  has usage => <<EOF;
\&  Usage: APPLICATION mycommand [OPTIONS]
\&
\&  Options:
\&    \-s, \-\-something   Does something.
\&  EOF
\&
\&  sub run {
\&    my ($self, @args) = @_;
\&
\&    # Magic here! :)
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Mojolicious::Command is an abstract base class for Mojolicious commands.
.PP
See \*(L"\s-1COMMANDS\*(R"\s0 in Mojolicious::Commands for a list of commands that are
available by default.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
Mojolicious::Command implements the following attributes.
.SS "app"
.IX Subsection "app"
.Vb 2
\&  my $app  = $command\->app;
\&  $command = $command\->app(MyApp\->new);
.Ve
.PP
Application for command, defaults to a Mojo::HelloWorld object.
.PP
.Vb 2
\&  # Introspect
\&  say "Template path: $_" for @{$command\->app\->renderer\->paths};
.Ve
.SS "description"
.IX Subsection "description"
.Vb 2
\&  my $description = $command\->description;
\&  $command        = $command\->description(\*(AqFoo!\*(Aq);
.Ve
.PP
Short description of command, used for the command list.
.SS "quiet"
.IX Subsection "quiet"
.Vb 2
\&  my $bool = $command\->quiet;
\&  $command = $command\->quiet($bool);
.Ve
.PP
Limited command output.
.SS "usage"
.IX Subsection "usage"
.Vb 2
\&  my $usage = $command\->usage;
\&  $command  = $command\->usage(\*(AqFoo!\*(Aq);
.Ve
.PP
Usage information for command, used for the help screen.
.SH "METHODS"
.IX Header "METHODS"
Mojolicious::Command inherits all methods from Mojo::Base and implements
the following new ones.
.SS "chmod_file"
.IX Subsection "chmod_file"
.Vb 1
\&  $command = $command\->chmod_file(\*(Aq/home/sri/foo.txt\*(Aq, 0644);
.Ve
.PP
Change mode of a file.
.SS "chmod_rel_file"
.IX Subsection "chmod_rel_file"
.Vb 1
\&  $command = $command\->chmod_rel_file(\*(Aqfoo/foo.txt\*(Aq, 0644);
.Ve
.PP
Portably change mode of a file relative to the current working directory.
.SS "create_dir"
.IX Subsection "create_dir"
.Vb 1
\&  $command = $command\->create_dir(\*(Aq/home/sri/foo/bar\*(Aq);
.Ve
.PP
Create a directory.
.SS "create_rel_dir"
.IX Subsection "create_rel_dir"
.Vb 1
\&  $command = $command\->create_rel_dir(\*(Aqfoo/bar/baz\*(Aq);
.Ve
.PP
Portably create a directory relative to the current working directory.
.SS "extract_usage"
.IX Subsection "extract_usage"
.Vb 1
\&  my $usage = $command\->extract_usage;
.Ve
.PP
Extract usage message from the \s-1SYNOPSIS\s0 section of the file this method was
called from.
.SS "help"
.IX Subsection "help"
.Vb 1
\&  $command\->help;
.Ve
.PP
Print usage information for command.
.SS "rel_dir"
.IX Subsection "rel_dir"
.Vb 1
\&  my $path = $command\->rel_dir(\*(Aqfoo/bar\*(Aq);
.Ve
.PP
Portably generate an absolute path for a directory relative to the current
working directory.
.SS "rel_file"
.IX Subsection "rel_file"
.Vb 1
\&  my $path = $command\->rel_file(\*(Aqfoo/bar.txt\*(Aq);
.Ve
.PP
Portably generate an absolute path for a file relative to the current working
directory.
.SS "render_data"
.IX Subsection "render_data"
.Vb 2
\&  my $data = $command\->render_data(\*(Aqfoo_bar\*(Aq);
\&  my $data = $command\->render_data(\*(Aqfoo_bar\*(Aq, @args);
.Ve
.PP
Render a template from the \f(CW\*(C`DATA\*(C'\fR section of the command class with
Mojo::Template.
.SS "render_to_file"
.IX Subsection "render_to_file"
.Vb 2
\&  $command = $command\->render_to_file(\*(Aqfoo_bar\*(Aq, \*(Aq/home/sri/foo.txt\*(Aq);
\&  $command = $command\->render_to_file(\*(Aqfoo_bar\*(Aq, \*(Aq/home/sri/foo.txt\*(Aq, @args);
.Ve
.PP
Render a template from the \f(CW\*(C`DATA\*(C'\fR section of the command class with
Mojo::Template to a file and create directory if necessary.
.SS "render_to_rel_file"
.IX Subsection "render_to_rel_file"
.Vb 2
\&  $command = $command\->render_to_rel_file(\*(Aqfoo_bar\*(Aq, \*(Aqfoo/bar.txt\*(Aq);
\&  $command = $command\->render_to_rel_file(\*(Aqfoo_bar\*(Aq, \*(Aqfoo/bar.txt\*(Aq, @args);
.Ve
.PP
Portably render a template from the \f(CW\*(C`DATA\*(C'\fR section of the command class with
Mojo::Template to a file relative to the current working directory and
create directory if necessary.
.SS "run"
.IX Subsection "run"
.Vb 2
\&  $command\->run;
\&  $command\->run(@ARGV);
.Ve
.PP
Run command. Meant to be overloaded in a subclass.
.SS "write_file"
.IX Subsection "write_file"
.Vb 1
\&  $command = $command\->write_file(\*(Aq/home/sri/foo.txt\*(Aq, \*(AqHello World!\*(Aq);
.Ve
.PP
Write text to a file and create directory if necessary.
.SS "write_rel_file"
.IX Subsection "write_rel_file"
.Vb 1
\&  $command = $command\->write_rel_file(\*(Aqfoo/bar.txt\*(Aq, \*(AqHello World!\*(Aq);
.Ve
.PP
Portably write text to a file relative to the current working directory and
create directory if necessary.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>.