Updated harness that doesn't rely on Parrot::Test::Harness.

This version doesn't honor the --jobs option; patches welcome
to re-add that feature.  Also needs testing on Win32.

t/harness

@@ -8,50 +8,33 @@
 use FindBin;
 use File::Spec;
 use Getopt::Long qw(:config pass_through);
-use lib qw( parrot/lib  ../../lib );
-use strict;
 
-our %harness_args;
-our $recurse = 1;
-
-our %harness_args = (
-    language  => 'perl6',
-    compiler  => 'perl6.pbc',
-    verbosity => 0,
-);
-
-if (-d 'parrot') {
-    $harness_args{exec}     = ['parrot/parrot', 'perl6.pbc'];
-} else {
-    $harness_args{compiler} = 'perl6.pbc';
-}
+$ENV{'HARNESS_PERL'} = './perl6';
+use Test::Harness;
+$Test::Harness::switches = '';
 
 GetOptions(
-        'tests-from-file=s' => \my $list_file,
-        'fudge'             => \my $do_fudge,
-        'verbosity=i'       => \$harness_args{verbosity},
-        # A sensible default is num_cores + 1.
-        # Many people have two cores these days.
-        'jobs:3'            => \$harness_args{jobs},
-    );
-
-
+    'tests-from-file=s' => \my $list_file,
+    'fudge'             => \my $do_fudge,
+    'verbosity=i'       => \my $verbosity,
+    'jobs:3'            => \my $jobs,
+);
 my @pass_through_options = grep m/^--?[^-]/, @ARGV;
 my @files = grep m/^[^-]/, @ARGV;
 
-my %accepted_tests;
+my $slash = $^O eq 'MSWin32' ? '\\' : '/';
+
 if ($list_file) {
     open(my $f, '<', $list_file)
         or die "Can't open file '$list_file' for reading: $!";
-    my $slash = $^O eq 'MSWin32' ? '\\' : '/';
-    while (<$f>){
+    while (<$f>) {
         next if m/^\s*#/;
         next unless m/\S/;
         chomp;
         my ($fn, $fudgespec) = split m/\s+#\s*/;
         $fn = "t/spec/$fn" unless $fn =~ m/^t\Q$slash\Espec\Q$slash\E/;
-        $fn =~ s/\//$slash/g;
-        if( -r $fn ) {
+        $fn =~ s{/}{$slash}g;
+        if ( -r $fn ) {
             push @files, $fn;
         } else {
             warn "Missing test file: $fn\n";
@@ -60,25 +43,14 @@ if ($list_file) {
     close $f;
 }
 
-# first prepare our list of files
 my @tfiles = map { all_in($_) } sort @files;
 
-# then decide if and what to fudge
 if ($do_fudge) {
     @tfiles = fudge(@tfiles);
 }
 
-$harness_args{arguments} = \@tfiles;
-
-sub fudge {
-    my $impl   = 'rakudo';
-    my $cmd = join ' ', $^X, 't/spec/fudgeall',
-                        @pass_through_options, $impl, @_;
-#    print "$cmd\n";
-    return split ' ', `$cmd`;
-}
+runtests(@tfiles);
 
-# Stolen directly from 'prove'
 # adapted to return only files ending in '.t'
 sub all_in {
     my $start = shift;
@@ -110,9 +82,9 @@ sub all_in {
     return @hits;
 }
 
-# Set up PERL6LIB environment path so the "use" tests can find libraries
-$ENV{PERL6LIB} = "$FindBin::Bin/01-sanity";
-
-eval 'use Parrot::Test::Harness %harness_args';
-
-
+sub fudge {
+    my $impl = 'rakudo';
+    my $cmd  = join ' ', $^X, 't/spec/fudgeall', 
+                         @pass_through_options, $impl, @_;
+    return split ' ', `$cmd`;
+}