Alien::Build::Plugin::Probe::CommandLine(3)

NAME
Alien::Build::Plugin::Probe::CommandLine - Probe for tools or commands already available

VERSION
version 1.67

SYNOPSIS
 use alienfile;
 plugin 'Probe::CommandLine' => (
   command => 'gzip',
   args    => [ '--version' ],
   match   => qr/gzip/,
   version => qr/gzip ([0-9\.]+)/,
 );

DESCRIPTION
This plugin probes for the existence of the given command line program.

PROPERTIES

  command
The name of the command.

  args
The arguments to pass to the command.

  secondary
If you are using another probe plugin (such as Alien::Build::Plugin::Probe::CBuilder or Alien::Build::Plugin::PkgConfig::Negotiate) to detect the existence of a library, but also need a program to exist, then you should set secondary to a true value. For example when you need both:

 use alienfile;
 # requires both liblzma library and xz program
 plugin 'PkgConfig' => 'liblzma';
 plugin 'Probe::CommandLine => (
   command   => 'xz',
   secondary => 1,
 );

When you don't:

 use alienfile;
 plugin 'Probe::CommandLine' => (
   command   => 'gzip',
   secondary => 0, # default
 );

  match
Regular expression for which the program output should match.

  match_stderr
Regular expression for which the program standard error should match.

  version
Regular expression to parse out the version from the program output. The regular expression should store the version number in $1.

  version_stderr
Regular expression to parse out the version from the program standard error. The regular expression should store the version number in $1.

SEE ALSO
Alien::Build, alienfile, Alien::Build::MM, Alien

AUTHOR
Author: Graham Ollis <plicease@cpan.org>

Contributors:

Diab Jerius (DJERIUS)

Roy Storey

Ilya Pavlov

David Mertens (run4flat)

Mark Nunberg (mordy, mnunberg)

Christian Walde (Mithaldu)

Brian Wightman (MidLifeXis)

Zaki Mughal (zmughal)

mohawk (mohawk2, ETJ)

Vikas N Kumar (vikasnkumar)

Flavio Poletti (polettix)

Salvador Fandiño (salva)

Gianni Ceccarelli (dakkar)

Pavel Shaydo (zwon, trinitum)

Kang-min Liu (劉康民, gugod)

Nicholas Shipp (nshp)

Juan Julián Merelo Guervós (JJ)

Joel Berger (JBERGER)

Petr Pisar (ppisar)

Lance Wicks (LANCEW)

Ahmad Fatoum (a3f, ATHREEF)

José Joaquín Atria (JJATRIA)

Duke Leto (LETO)

Shoichi Kaji (SKAJI)

Shawn Laffan (SLAFFAN)

Paul Evans (leonerd, PEVANS)

COPYRIGHT AND LICENSE
This software is copyright (c) 2011-2019 by Graham Ollis.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.