per product publish doc and variable name fixup

lib/npg_pipeline/product/release/irods.pm

@@ -109,19 +109,19 @@ sub _build_per_product_archive {
 =head2 irods_collection4run_rel
 
 Returns a relative path the run's destination collection. For the production
-iRODS this path does not have the root C</seq> component. This methos can
+iRODS this path does not have the root C</seq> component. This method can
 be used as an instance method and a class (package) level method. If used
 as a class (package) level method, a hardcoded common iRODS path
-C<illumina/runs> is used for NovaSeq platform runs. In the instance method
-this path can be customised by setting the C<irods_root_collection_ns>
-attribute of the object. For objects it might be more convenient to use the
-C<irods_destination_collection> attribute.
+C<illumina/runs> is used for NovaSeq (or newer) platform runs. In the
+instance method this path can be customised by setting the
+C<irods_root_collection_ns> attribute of the object. For objects it might be
+more convenient to use the C<irods_destination_collection> attribute.
 
 If the second argument is not present, a flat run-level archive is assumed.
 
   my $rc = $obj->irods_collection4run_rel($id_run);
   my $per_product_archive = 1;
-  $rc = $obj->$obj->irods_collection4run_rel($id_run, $platform_is_novaseq);
+  $rc = $obj->$obj->irods_collection4run_rel($id_run, $per_product_archive);
   
   $rc = npg_pipeline::product::release::irods->
     irods_collection4run_rel(45666, 0);
@@ -182,26 +182,26 @@ is not considered as NovaSeq.
   my $product = npg_pipeline::product(rpt_list => '34567:2:1');
   my $pc = $obj->irods_product_destination_collection_norf(
                  $run_collection, $product);
-  my $platform_is_novaseq = 0;
+  my $per_product_archive = 0;
   $pc = $obj->irods_product_destination_collection_norf(
-    'some/irods/path/34/34567', $product, $platform_is_novaseq);
+    'some/irods/path/34/34567', $product, $per_product_archive);
   print $pc; # prints some/irods/path/34/34567 
  
-  $platform_is_novaseq = 1;
+  $per_product_archive = 1;
   my $product = npg_pipeline::product(rpt_list => '34567:2:1');
   $pc = npg_pipeline::product::release::irods->
     irods_product_destination_collection_norf(
-    'some/irods/path/34/34567', $product, $platform_is_novaseq);
+    'some/irods/path/34/34567', $product, $per_product_archive);
   print $pc; # prints some/irods/path/34/34567/lane2/plex1
   
 =cut
 
 sub irods_product_destination_collection_norf {
-  my ($self, $run_collection, $product, $platform_is_novaseq) = @_;
+  my ($self, $run_collection, $product, $per_product_archive) = @_;
 
   $run_collection or croak('Run collection iRODS path is required');
   $product or croak('Product object is required');
-  return $platform_is_novaseq
+  return $per_product_archive
          ? join q[/], $run_collection, $product->dir_path()
          : $run_collection;
 }