93 lines
2.1 KiB
Perl
93 lines
2.1 KiB
Perl
package PAR::SetupProgname;
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$PAR::SetupProgname::VERSION = '1.002';
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use 5.006;
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use strict;
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use warnings;
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use Config ();
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=head1 NAME
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PAR::SetupProgname - Setup $ENV{PAR_PROGNAME}
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=head1 SYNOPSIS
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PAR guts, beware. Check L<PAR>
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=head1 DESCRIPTION
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Routines to setup the C<PAR_PROGNAME> environment variable.
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Read the C<PAR::Environment> manual.
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The C<set_progname()> subroutine sets up the C<PAR_PROGNAME>
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environment variable
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=cut
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# for PAR internal use only!
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our $Progname = $ENV{PAR_PROGNAME} || $0;
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# same code lives in PAR::Packer's par.pl!
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sub set_progname {
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require File::Spec;
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if (defined $ENV{PAR_PROGNAME} and $ENV{PAR_PROGNAME} =~ /(.+)/) {
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$Progname = $1;
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}
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$Progname = $0 if not defined $Progname;
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if (( () = File::Spec->splitdir($Progname) ) > 1 or !$ENV{PAR_PROGNAME}) {
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if (open my $fh, $Progname) {
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return if -s $fh;
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}
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if (-s "$Progname$Config::Config{_exe}") {
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$Progname .= $Config::Config{_exe};
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return;
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}
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}
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foreach my $dir (split /\Q$Config::Config{path_sep}\E/, $ENV{PATH}) {
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next if exists $ENV{PAR_TEMP} and $dir eq $ENV{PAR_TEMP};
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my $name = File::Spec->catfile($dir, "$Progname$Config::Config{_exe}");
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if (-s $name) { $Progname = $name; last }
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$name = File::Spec->catfile($dir, "$Progname");
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if (-s $name) { $Progname = $name; last }
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}
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}
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1;
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__END__
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=head1 SEE ALSO
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L<PAR>, L<PAR::Environment>
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=head1 AUTHORS
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Audrey Tang E<lt>cpan@audreyt.orgE<gt>,
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Steffen Mueller E<lt>smueller@cpan.orgE<gt>
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You can write
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to the mailing list at E<lt>par@perl.orgE<gt>, or send an empty mail to
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E<lt>par-subscribe@perl.orgE<gt> to participate in the discussion.
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Please submit bug reports to E<lt>bug-par@rt.cpan.orgE<gt>. If you need
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support, however, joining the E<lt>par@perl.orgE<gt> mailing list is
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preferred.
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=head1 COPYRIGHT
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Copyright 2002-2010 by Audrey Tang E<lt>cpan@audreyt.orgE<gt>.
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Copyright 2006-2010 by Steffen Mueller E<lt>smueller@cpan.orgE<gt>.
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This program is free software; you can redistribute it and/or modify it
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under the same terms as Perl itself.
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See F<LICENSE>.
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=cut
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