File Coverage

blib/lib/PAR/SetupProgname.pm

Criterion	Covered	Total	%
statement	20	36	55.5
branch	5	20	25.0
condition	3	9	33.3
subroutine	5	5	100.0
pod	0	1	0.0
total	33	71	46.4

package PAR::SetupProgname;
$PAR::SetupProgname::VERSION = '1.002';

use 5.008009;
use strict;
use warnings;
use Config;

=head1 NAME

PAR::SetupProgname - Setup $ENV{PAR_PROGNAME}

=head1 SYNOPSIS

PAR guts, beware. Check L

=head1 DESCRIPTION

Routines to setup the C environment variable.
Read the C manual.

The C subroutine sets up the C
environment variable

=cut

# for PAR internal use only!
our $Progname = $ENV{PAR_PROGNAME} || $0;

# same code lives in PAR::Packer's par.pl!
sub set_progname {
    require File::Spec;

    if (defined $ENV{PAR_PROGNAME} and $ENV{PAR_PROGNAME} =~ /(.+)/) {
        $Progname = $1;
    }
    $Progname = $0 if not defined $Progname;

    if (( () = File::Spec->splitdir($Progname) ) > 1 or !$ENV{PAR_PROGNAME}) {
        my $name = $Progname;
        if (-s $name) { $Progname = $name; return }
        if ($Config{_exe}) {
            $name = "$Progname$Config{_exe}";
            if (-s $name) { $Progname = $name; return }
        }
    }

    foreach my $dir (split /\Q$Config{path_sep}\E/, $ENV{PATH}) {
        next if exists $ENV{PAR_TEMP} and $dir eq $ENV{PAR_TEMP};
        my $name = File::Spec->catfile($dir, $Progname);
        if (-s $name) { $Progname = $name; return }
        if ($Config{_exe}) {
            $name = File::Spec->catfile($dir, "$Progname$Config{_exe}");
            if (-s $name) { $Progname = $name; return }
        }
    }
}


1;

__END__