/usr/share/perl5/Mojo/Command.pm is in libmojolicious-perl 2.98+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use Mojo::Base -base;
use Carp 'croak';
use Cwd 'getcwd';
use File::Path 'mkpath';
use File::Spec::Functions qw(catdir catfile splitdir);
use IO::Handle;
use Mojo::Server;
use Mojo::Template;
use Mojo::Util qw(b64_decode decamelize);
has description => 'No description.';
has quiet => 0;
has usage => "usage: $0\n";
# Cache
my %CACHE;
sub app { Mojo::Server->new->app }
sub chmod_file {
my ($self, $path, $mod) = @_;
chmod $mod, $path or croak qq{Can't chmod path "$path": $!};
$mod = sprintf '%lo', $mod;
say " [chmod] $path $mod" unless $self->quiet;
return $self;
}
sub chmod_rel_file {
my ($self, $path, $mod) = @_;
$self->chmod_file($self->rel_file($path), $mod);
}
sub class_to_file {
my ($self, $class) = @_;
$class =~ s/:://g;
$class =~ s/([A-Z])([A-Z]*)/$1.lc($2)/ge;
return decamelize $class;
}
sub class_to_path { join '.', join('/', split /::|'/, pop), 'pm' }
sub create_dir {
my ($self, $path) = @_;
# Exists
if (-d $path) {
say " [exist] $path" unless $self->quiet;
return $self;
}
# Create
mkpath $path or croak qq{Can't make directory "$path": $!};
say " [mkdir] $path" unless $self->quiet;
return $self;
}
sub create_rel_dir {
my ($self, $path) = @_;
$self->create_dir($self->rel_dir($path));
}
# "Olive oil? Asparagus? If your mother wasn't so fancy,
# we could just shop at the gas station like normal people."
sub get_all_data {
my ($self, $class) = @_;
$class ||= ref $self;
# Refresh or use cached data
my $d = do { no strict 'refs'; \*{"$class\::DATA"} };
return $CACHE{$class} || {} unless fileno $d;
seek $d, 0, 0;
my $content = join '', <$d>;
close $d;
# Ignore everything before __DATA__ (windows will seek to start of file)
$content =~ s/^.*\n__DATA__\r?\n/\n/s;
# Ignore everything after __END__
$content =~ s/\n__END__\r?\n.*$/\n/s;
# Split
my @data = split /^@@\s*(.+?)\s*\r?\n/m, $content;
shift @data;
# Find data
my $all = $CACHE{$class} = {};
while (@data) {
my ($name, $content) = splice @data, 0, 2;
$content = b64_decode $content if $name =~ s/\s*\(\s*base64\s*\)$//;
$all->{$name} = $content;
}
return $all;
}
sub get_data {
my ($self, $data, $class) = @_;
$self->get_all_data($class)->{$data};
}
# "You don't like your job, you don't strike.
# You go in every day and do it really half-assed. That's the American way."
sub help {
print shift->usage;
exit 0;
}
sub rel_dir { catdir(getcwd(), split /\//, pop) }
sub rel_file { catfile(getcwd(), split /\//, pop) }
sub render_data { Mojo::Template->new->render(shift->get_data(shift), @_) }
sub render_to_file {
my ($self, $data, $path) = (shift, shift, shift);
return $self->write_file($path, $self->render_data($data, @_));
}
sub render_to_rel_file {
my $self = shift;
$self->render_to_file(shift, $self->rel_dir(shift), @_);
}
sub run { croak 'Method "run" not implemented by subclass' }
# "The only thing I asked you to do for this party was put on clothes,
# and you didn't do it."
sub write_file {
my ($self, $path, $data) = @_;
# Directory
my @parts = splitdir $path;
pop @parts;
my $dir = catdir @parts;
$self->create_dir($dir);
# Write unbuffered
croak qq{Can't open file "$path": $!} unless open my $file, '>', $path;
croak qq{Can't write to file "$path": $!}
unless defined $file->syswrite($data);
say " [write] $path" unless $self->quiet;
return $self;
}
sub write_rel_file {
my ($self, $path, $data) = @_;
$self->write_file($self->rel_file($path), $data);
}
1;
=head1 NAME
Mojo::Command - Command base class
=head1 SYNOPSIS
# Lower case command name
package Mojolicious::Command::mycommand;
# Subclass
use Mojo::Base 'Mojo::Command';
# Take care of command line options
use Getopt::Long 'GetOptions';
# Short description
has description => "My first Mojo command.\n";
# Short usage message
has usage => <<"EOF";
usage: $0 mycommand [OPTIONS]
These options are available:
-s, --something Does something.
EOF
# <suitable Futurama quote here>
sub run {
my $self = shift;
# Handle options
local @ARGV = @_;
GetOptions('s|something' => sub { $something = 1 });
# Magic here! :)
}
=head1 DESCRIPTION
L<Mojo::Command> is an abstract base class for L<Mojo> commands.
See L<Mojolicious::Commands> for a list of commands that are available by
default.
=head1 ATTRIBUTES
L<Mojo::Command> implements the following attributes.
=head2 C<description>
my $description = $command->description;
$command = $command->description('Foo!');
Short description of command, used for the command list.
=head2 C<quiet>
my $quiet = $command->quiet;
$command = $command->quiet(1);
Limited command output.
=head2 C<usage>
my $usage = $command->usage;
$command = $command->usage('Foo!');
Usage information for command, used for the help screen.
=head1 METHODS
L<Mojo::Command> inherits all methods from L<Mojo::Base> and implements the
following new ones.
=head2 C<app>
my $app = $command->app;
Currently active application.
# Introspect
say "Template path: $_" for @{$command->app->renderer->paths};
=head2 C<chmod_file>
$command = $command->chmod_file('/home/sri/foo.txt', 0644);
Portably change mode of a file.
=head2 C<chmod_rel_file>
$command = $command->chmod_rel_file('foo/foo.txt', 0644);
Portably change mode of a file relative to the current working directory.
=head2 C<class_to_file>
my $file = $command->class_to_file('Foo::Bar');
Convert a class name to a file.
Foo::Bar -> foo_bar
FOO::Bar -> foobar
FooBar -> foo_bar
FOOBar -> foobar
=head2 C<class_to_path>
my $path = $command->class_to_path('Foo::Bar');
Convert class name to path.
Foo::Bar -> Foo/Bar.pm
=head2 C<create_dir>
$command = $command->create_dir('/home/sri/foo/bar');
Portably create a directory.
=head2 C<create_rel_dir>
$command = $command->create_rel_dir('foo/bar/baz');
Portably create a directory relative to the current working directory.
=head2 C<get_all_data>
my $all = $command->get_all_data;
my $all = $command->get_all_data('Some::Class');
Extract all embedded files from the C<DATA> section of a class.
=head2 C<get_data>
my $data = $command->get_data('foo_bar');
my $data = $command->get_data('foo_bar', 'Some::Class');
Extract embedded file from the C<DATA> section of a class.
=head2 C<help>
$command->help;
Print usage information for command.
=head2 C<rel_dir>
my $path = $command->rel_dir('foo/bar');
Portably generate an absolute path for a directory relative to the current
working directory.
=head2 C<rel_file>
my $path = $command->rel_file('foo/bar.txt');
Portably generate an absolute path for a file relative to the current working
directory.
=head2 C<render_data>
my $data = $command->render_data('foo_bar', @args);
Render a template from the C<DATA> section of the command class.
=head2 C<render_to_file>
$command = $command->render_to_file('foo_bar', '/home/sri/foo.txt');
Render a template from the C<DATA> section of the command class to a file.
=head2 C<render_to_rel_file>
$command = $command->render_to_rel_file('foo_bar', 'foo/bar.txt');
Portably render a template from the C<DATA> section of the command class to a
file relative to the current working directory.
=head2 C<run>
$command->run;
$command->run(@ARGV);
Run command. Meant to be overloaded in a subclass.
=head2 C<write_file>
$command = $command->write_file('/home/sri/foo.txt', 'Hello World!');
Portably write text to a file.
=head2 C<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.
=head1 SEE ALSO
L<Mojolicious>, L<Mojolicious::Guides>, L<http://mojolicio.us>.
=cut
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