On Fri, Jul 25, 2014 at 7:55 AM, Bagdevi <bagdevi.mis...@gmail.com> wrote:
> system ("perl a.pl");
>
There are several things wrong with this:
- You assume that a.pl is in your current working directory - that doesn't
have
to be the case even in the unpacked case.
In the packed case a.pl etc will be located in a temporary cache
directory,
"$ENV{PAR_TEMP}/inc/script"
- You assume that master.pl was invoked from an executable called "perl"
(or "perl.exe" on Windows) that can be found via $PATH - what if it's not
in your path and you called it with an absolute pathname? What if it's
not even called "perl", but "perl5.18" or similar?
Always use $^X which is the absolute pathname of the Perl interpreter that
is executing the current script.
- When packing, you must use "pp --reusable ..." for your scenario to work.
Putting all this together:
==> a.pl <==
#!/usr/bin/perl
use File::Spec;
my $script_dir = File::Spec->catdir($ENV{PAR_TEMP}, qw(inc script));
print STDERR "this is a.pl\n",
"\$script_dir = $script_dir\n";
"\$^X = $^X\n";
print STDERR "running b.pl ...\n";
system $^X, File::Spec->catfile($script_dir, "b.pl");
print STDERR "running c.pl ...\n";
system $^X, File::Spec->catfile($script_dir, "c.pl");
print STDERR "a.pl done\n";
==> b.pl <==
#!/usr/bin/perl
print STDERR "this is b.pl\n";
==> c.pl <==
#!/usr/bin/perl
print STDERR "this is c.pl\n";
... pack it...
$ pp --reusable -o foo.exe a.pl b.pl c.pl
...run it
$ ./foo.exe
this is a.pl
$script_dir =
/tmp/par-726f646572696368/cache-2a74a667f0a6e1a744c1654f442a69b2b563f710/inc/script
running b.pl ...
this is b.pl
running c.pl ...
this is c.pl
a.pl done
Cheers, Roderich
