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inc/Devel/CheckOS.pm  view on Meta::CPAN

Devel::CheckOS - check what OS we're running on

=head1 DESCRIPTION

A learned sage once wrote on IRC:

   $^O is stupid and ugly, it wears its pants as a hat

Devel::CheckOS provides a more friendly interface to $^O, and also lets
you check for various OS "families" such as "Unix", which includes things
like Linux, Solaris, AIX etc.

It spares perl the embarrassment of wearing its pants on its head by
covering them with a splendid Fedora.

=head1 SYNOPSIS

    use Devel::CheckOS qw(os_is);
    print "Hey, I know this, it's a Unix system\n" if(os_is('Unix'));

    print "You've got Linux 2.6\n" if(os_is('Linux::v2_6'));

=head1 USING IT IN Makefile.PL or Build.PL

If you want to use this from Makefile.PL or Build.PL, do
not simply copy the module into your distribution as this may cause
problems when PAUSE and search.cpan.org index the distro.  Instead, use
the use-devel-assertos script.

inc/Devel/CheckOS.pm  view on Meta::CPAN

    use Devel::CheckOS qw(:all);      # export everything

=head2 Boolean functions

=head3 os_is

Takes a list of OS names.  If the current platform matches any of them,
it returns true, otherwise it returns false.  The names can be a mixture
of OSes and OS families, eg ...

    os_is(qw(Unix VMS)); # Unix is a family, VMS is an OS

=cut

sub os_is {
    my @targets = @_;
    my $rval = 0;
    foreach my $target (@targets) {
        die("Devel::CheckOS: $target isn't a legal OS name\n")
            unless($target =~ /^\w+(::\w+)*$/);
        eval "use Devel::AssertOS::$target";

inc/Devel/CheckOS.pm  view on Meta::CPAN

=head1 AUTHOR

David Cantrell E<lt>F<david@cantrell.org.uk>E<gt>

Thanks to David Golden for the name and ideas about the interface, and
to the cpan-testers-discuss mailing list for prompting me to write it
in the first place.

Thanks to Ken Williams, from whose L<Module::Build> I lifted some of the
information about what should be in the Unix family.

Thanks to Billy Abbott for finding some bugs for me on VMS.

Thanks to Matt Kraai for information about QNX.

Thanks to Kenichi Ishigaki and Gabor Szabo for reporting a bug on Windows,
and to the former for providing a patch.

Thanks to Paul Green for some information about VOS.