App-RecordStream
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lib/App/RecordStream/Operation/help.pm view on Meta::CPAN
use strict;
use warnings;
package App::RecordStream::Operation::help;
use base qw(App::RecordStream::Operation);
use Carp qw< croak >;
sub usage {
my $this = shift;
my $args_string = $this->options_string([]);
return <<USAGE;
Usage: recs help <command-name>
recs help <option>
__FORMAT_TEXT__
Show help for the given command or options. Equivalent to using `recs
command --help` and friends.
__FORMAT_TEXT__
Arguments:
$args_string
Examples:
Show help for fromcsv command
recs help fromcsv
Show help for code snippets
recs help --snippet
USAGE
}
sub init_help {
my $this = shift;
$this->SUPER::init_help(@_);
# Make all help types available, sans the redundant "help-" prefix
for my $type (keys %{ $this->{'HELP_TYPES'} }) {
$this->use_help_type($type);
$this->{'HELP_TYPES'}{$type}{OPTION_NAME} ||= $type;
}
}
sub init {
my $this = shift;
my $args = shift;
$this->parse_options($args, {});
my $op = shift @$args;
if ($op) {
# Command help
local @ARGV = ("--help");
App::RecordStream::Operation::main("recs-$op");
} else {
# Option help
$this->_set_wants_help(1);
}
}
sub does_record_output { 0 }
sub wants_input { 0 }
sub accept_line {
croak "This operation does not accept input.";
}
1;
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