[backend] Backport from master d650672 to fix issue#1608

src/backend/bs_repserver

@@ -2050,14 +2050,15 @@ sub copybuild {
   mkdir_p($dir);
   my $delayed_linking;
   my $needsign;
-  for my $bin (grep {$_ ne 'status' && $_ ne 'reason' && $_ ne 'history' && !/^\./} ls($odir)) {
+  for my $bin (grep {$_ ne 'status' && $_ ne 'reason' && $_ ne 'history' && $_ ne 'meta' && !/^\./} sort(ls($odir))) {
     if ($bin eq "updateinfo.xml" && $cgi->{'setupdateinfoid'}) {
       my $updateinfo = readxml("$odir/$bin", $BSXML::updateinfo);
       for (@{$updateinfo->{'update'} || []}) {
         $_->{'id'} = $cgi->{'setupdateinfoid'};
       }
       writexml("$dir/$bin", undef, $updateinfo, $BSXML::updateinfo);
     } else {
+      next if $bin =~ /^::import::/;   # can't copy those yet
       $needsign = 1 if $bin =~ /\.(?:d?rpm|sha256|iso)$/;
       my $nbin = $bin;
       my $setrelease = $cgi->{'setrelease'};
@@ -2079,6 +2080,7 @@ sub copybuild {
       }
     }
   }
+  link("$odir/.meta.success", "$dir/meta") if -e "$odir/.meta.success";
 
   # we run the linking of directory trees in background, since it can take a long time
   # for simple files it happened already

src/backend/bs_sched

@@ -4538,12 +4538,15 @@ sub uploadbuildevent {
   my $gdst = "$reporoot/$prp/$myarch";
   my $dst = "$gdst/$packid";
   mkdir_p($dst);
+  my $meta;
+  $meta = "$jobdatadir/meta" if -e "$jobdatadir/meta";
   print "  - $prp: $packid uploaded\n";
   my $useforbuildenabled = 1;
   $useforbuildenabled = enabled($repoid, $projpacks->{$projid}->{'useforbuild'}, $useforbuildenabled);
   $useforbuildenabled = enabled($repoid, $pdata->{'useforbuild'}, $useforbuildenabled);
-  update_dst_full($prp, $packid, $jobdatadir, undef, $useforbuildenabled, $prpsearchpath{$prp});
+  update_dst_full($prp, $packid, $jobdatadir, $meta, $useforbuildenabled, $prpsearchpath{$prp});
   $changed->{$prp} = 2 if $useforbuildenabled;
+  rename($meta, "$gdst/:meta/$packid") if $meta;
   delete $repounchanged{$prp} if $useforbuildenabled;
   $repounchanged{$prp} = 2 if $repounchanged{$prp};
   $changed->{$prp} ||= 1;