don't build the list of local assemblies to build if the final output BAM already exists.
don't build the list of local assemblies to build if the final output BAM already exists.

EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller,EichlerLab/pacbio_variant_caller