Modern Getopt for Command Line Processing in Perl

Modern Getopt forCommand Line Processing Nick Patch YAPC::NA 28 June 2011

"Getting command line options anddealing with them is a colossal pain, and every module that does it sucks and offends someone." — Ricardo Signes (rjbs)

Getopt::Abridged Getopt::ArgvFile Getopt::AsDocumented Getopt::Attribute Getopt::AutoConf Getopt::Awesome Getopt::Base Getopt::CallingName Getopt::Casual Getopt::Chain Getopt::Clade Getopt::Compact Getopt::Compact::WithCmd Getopt::Complete Getopt::constant Getopt::Declare Getopt::Easy Getopt::Euclid Getopt::EvaP Getopt::ExPar Getopt::Fancy Getopt::FileConfig Getopt::Flex Getopt::Function Getopt::GetArgs Getopt::GUI::Long Getopt::Helpful Getopt::Inherited Getopt::Janus Getopt::Lazy Getopt::LL Getopt::Long Getopt::Long::Descriptive Getopt::Long::DescriptivePod Getopt::Long::GUI Getopt::LongUsage Getopt::Lucid Getopt::Mixed Getopt::Mixed::Help Getopt::Modular Getopt::OO Getopt::Param Getopt::Param::Tiny Getopt::Plus Getopt::Regex Getopt::Simple Getopt::Std::Strict Getopt::Std::WithCheck Getopt::Tabular Getopt::Tiny Getopt::TreeGetopt::Usaginator Getopt::Whatever Getopt::WonderBra Getopt::XML Getopt::Yagow Getopt_Auto CBSSports::Getopt CGI::GetoptMooseX::Getopt MooseX::Getopt::Defanged MouseX::Getopt Tk::Getopt

thats 63 Getopt modules

Getopt::Easy or Getopt::Simple ?

Getopt::Tiny or Getopt::Compact ?

maybe Getopt::Awesome ?

Getopt::WonderBra ?!

Getopt::WonderBra ?!"Lift and Separate Command Line Options"

dependents454 Getopt::Long 64 MooseX::Getopt 28 Getopt::Long::Descriptive 18 Getopt::ArgvFile 11 Getopt::Std::Strict 10 Getopt::Lucid 7 Getopt::Euclid 5 Getopt::Attribute 5 Getopt::Mixed 5 Getopt::Usaginator

minus same authors446 Getopt::Long 62 MooseX::Getopt 19 Getopt::Long::Descriptive 17 Getopt::ArgvFile 7 Getopt::Euclid 7 Getopt::Lucid 5 Getopt::Mixed

plus first release date446 Getopt::Long 1995 62 MooseX::Getopt 2007 19 Getopt::Long::Descriptive 2005 17 Getopt::ArgvFile 1999 7 Getopt::Euclid 2005 7 Getopt::Lucid 2005 5 Getopt::Mixed 1996

Getopt::Lucid

$ munge --in refuse.log --out allure.json

$ munge --in refuse.log --out allure.jsonmy $opt = Getopt::Lucid->getopt({ Param(in), Param(out),});

$ munge --in refuse.log --out allure.jsonmy $opt = Getopt::Lucid->getopt({ Param(in)->required, Param(out)->required,});

$ munge --in refuse.log --out allure.jsonmy $opt = Getopt::Lucid->getopt({ Param(in)->required, Param(out)->required,});open my $in_fh, <, $opt->get_in;open my $out_fh, >, $opt->get_out;

$ frobnicate --calibrate$ frobnicate -c

$ frobnicate --calibrate$ frobnicate -cmy $opt = Getopt::Lucid->getopt({ Switch(calibrate|c),});

$ frobnicate --calibrate$ frobnicate -cmy $opt = Getopt::Lucid->getopt({ Switch(calibrate|c),});print "Calibrating the frobnicator!n" if $opt->get_calibrate;

$ frobnicate --calibrate$ frobnicate -cuse 5.010;my $opt = Getopt::Lucid->getopt({ Switch(calibrate|c),});say Calibrating the frobnicator! if $opt->get_calibrate;

$ frobnicate --calibrate$ frobnicate -cuse 5.010;my $opt = Getopt::Lucid->getopt({ Switch(calibrate|c),});say Calibrating the frobnicator! if $opt->get_calibrate;$opt->set_calibrate(0);

$ perlping -v -s 512 4.2.2.2

$ perlping -v -s 512 4.2.2.2my $opt = Getopt::Lucid->getopt({ Param(size|s), Param(ttl|t), Switch(verbose|v),});

$ perlping -v -s 512 4.2.2.2my $opt = Getopt::Lucid->getopt({ Param(size|s)->default(64), Param(ttl|t)->default(50), Switch(verbose|v),});

$ perlping -v -s 512 4.2.2.2my $opt = Getopt::Lucid->getopt({ Param(size|s)->default(64), Param(ttl|t)->default(50), Switch(verbose|v),});my $destination = shift @ARGV;

MooseX::Getopt

MooseX::Getopt orMouseX::Getopt

$ munge --in refuse.log --out allure.json

$ munge --in refuse.log --out allure.jsonpackage File::Munge;use Moose;with MooseX::Getopt;

$ munge --in refuse.log --out allure.jsonpackage File::Munge;use Moose;with MooseX::Getopt;has in => (is => rw, isa => Str);has out => (is => rw, isa => Str);

$ munge --in refuse.log --out allure.jsonpackage File::Munge;use Moose;with MooseX::Getopt;has in => (is => rw, isa => Str, required => 1);has out => (is => rw, isa => Str, required => 1);

$ munge --in refuse.log --out allure.jsonpackage File::Munge;use Moose;with MooseX::Getopt;has in => (is => rw, isa => Str, required => 1);has out => (is => rw, isa => Str, required => 1);sub munge { my $self = shift; open my $in_fh, <, $self->in; open my $out_fh, >, $self->out;}

#!/usr/bin/perluse File::Munge;my $munger = File::Munge->new_with_options;$munger->munge;

$ frobnicate --calibrate$ frobnicate -c

$ frobnicate --calibrate$ frobnicate -chas calibrate => ( is => rw, isa => Bool, traits => [Getopt], cmd_aliases => c,);

$ frobnicate --calibrate$ frobnicate -chas calibrate => ( is => rw, isa => Bool, traits => [Getopt], cmd_aliases => c,);sub frob { my $self = shift; say Calibrating the frobnicator! if $self->calibrate; $self->calibrate(0);}

$ perlping -v -s 512 4.2.2.2

$ perlping -v -s 512 4.2.2.2has size => (is => rw, isa => Int);has ttl => (is => rw, isa => Int);has verbose => (is => rw, isa => Bool);

$ perlping -v -s 512 4.2.2.2has size => (is => rw, isa => Int, default => 64);has ttl => (is => rw, isa => Int, default => 50);has verbose => (is => rw, isa => Bool);

$ perlping -v -s 512 4.2.2.2has size => (is => rw, isa => Int, default => 64);has ttl => (is => rw, isa => Int, default => 50);has verbose => (is => rw, isa => Bool);has _destination => ( is => rw, isa => Str, default => sub { my $self = shift; return shift @{ $self->extra_argv }; });

$ perlping -v -s 512 4.2.2.2use 5.014;has size => (is => rw, isa => Int, default => 64);has ttl => (is => rw, isa => Int, default => 50);has verbose => (is => rw, isa => Bool);has _destination => ( is => rw, isa => Str, default => sub { my $self = shift; return shift $self->extra_argv; });

my suggestions

my suggestions Getopt::Lucid orGetopt::Long::Descriptive for one-off scripts

my suggestions Getopt::Lucid or Getopt::Long::Descriptive for one-off scriptsMooseX::Getopt or MouseX::Getopt for OO projects

my suggestions Getopt::Lucid or Getopt::Long::Descriptive for one-off scriptsMooseX::Getopt or MouseX::Getopt for OO projects App::Cmd, MooseX::App::Cmd or MouseX::App::Cmd for command-driven scripts

questions?

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Modern Getopt for Command Line Processing in Perl

by Nick Patch on Jun 28, 2011

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