Exemplo n.º 1
0
 def test_resolve_filespecs_raises_with_bad_inputs(self, task_id, outputs):
   with self.assertRaises(ValueError):
     io.resolve_filespecs(task_id, *outputs)
Exemplo n.º 2
0
def default_options(add_flags=True, flags_obj=None):
  """Creates a DeepVariantOptions proto populated with reasonable defaults.

  Args:
    add_flags: bool. defaults to True. If True, we will push the value of
      certain FLAGS into our options. If False, those option fields are left
      uninitialized.
    flags_obj: object.  If not None, use as the source of flags,
      else use global FLAGS.

  Returns:
    deepvariant_pb2.DeepVariantOptions protobuf.

  Raises:
    ValueError: If we observe invalid flag values.
  """
  if not flags_obj:
    flags_obj = FLAGS

  read_reqs = reads_pb2.ReadRequirements(
      min_base_quality=10,
      min_mapping_quality=10,
      min_base_quality_mode=reads_pb2.ReadRequirements.ENFORCED_BY_CLIENT)

  pic_options = pileup_image.default_options(read_requirements=read_reqs)

  allele_counter_options = deepvariant_pb2.AlleleCounterOptions(
      partition_size=flags_obj.partition_size, read_requirements=read_reqs)

  if flags_obj.sample_name:
    sample_name = flags_obj.sample_name
  elif flags_obj.reads:
    with sam.SamReader(flags_obj.reads) as sam_reader:
      sample_name = extract_sample_name_from_sam_reader(sam_reader)
  else:
    sample_name = _UNKNOWN_SAMPLE

  variant_caller_options = deepvariant_pb2.VariantCallerOptions(
      min_count_snps=flags_obj.vsc_min_count_snps,
      min_count_indels=flags_obj.vsc_min_count_indels,
      min_fraction_snps=flags_obj.vsc_min_fraction_snps,
      min_fraction_indels=flags_obj.vsc_min_fraction_indels,
      # Not specified by default: fraction_reference_sites_to_emit,
      # Fixed random seed produced with 'od -vAn -N4 -tu4 < /dev/urandom'.
      random_seed=1400605801,
      sample_name=sample_name,
      p_error=0.001,
      max_gq=50,
      gq_resolution=flags_obj.gvcf_gq_binsize,
      ploidy=2)

  options = deepvariant_pb2.DeepVariantOptions(
      exclude_contigs=exclude_contigs.EXCLUDED_HUMAN_CONTIGS,
      # Fixed random seed produced with 'od -vAn -N4 -tu4 < /dev/urandom'.
      random_seed=609314161,
      # # Not specified by default: calling_regions = 3;
      read_requirements=read_reqs,
      allele_counter_options=allele_counter_options,
      variant_caller_options=variant_caller_options,
      pic_options=pic_options,
      n_cores=1,
      task_id=0,
      num_shards=0,
      min_shared_contigs_basepairs=0.9,
  )

  if add_flags:
    options.mode = parse_proto_enum_flag(
        deepvariant_pb2.DeepVariantOptions.Mode, flags_obj.mode.upper())

    options.labeler_algorithm = parse_proto_enum_flag(
        deepvariant_pb2.DeepVariantOptions.LabelerAlgorithm,
        flags_obj.labeler_algorithm.upper())

    if flags_obj.ref:
      options.reference_filename = flags_obj.ref
    if flags_obj.reads:
      options.reads_filename = flags_obj.reads
    if flags_obj.confident_regions:
      options.confident_regions_filename = flags_obj.confident_regions
    if flags_obj.truth_variants:
      options.truth_variants_filename = flags_obj.truth_variants

    if flags_obj.downsample_fraction != NO_DOWNSAMPLING:
      options.downsample_fraction = flags_obj.downsample_fraction

    if flags_obj.multi_allelic_mode:
      multi_allelic_enum = {
          'include_het_alt_images':
              deepvariant_pb2.PileupImageOptions.ADD_HET_ALT_IMAGES,
          'exclude_het_alt_images':
              deepvariant_pb2.PileupImageOptions.NO_HET_ALT_IMAGES,
      }[flags_obj.multi_allelic_mode]
      options.pic_options.multi_allelic_mode = multi_allelic_enum

    if flags_obj.pileup_image_height:
      options.pic_options.height = flags_obj.pileup_image_height
    if flags_obj.pileup_image_width:
      options.pic_options.width = flags_obj.pileup_image_width

    num_shards, examples, candidates, gvcf = io_utils.resolve_filespecs(
        flags_obj.task, flags_obj.examples or '', flags_obj.candidates or '',
        flags_obj.gvcf or '')
    options.examples_filename = examples
    options.candidates_filename = candidates
    options.gvcf_filename = gvcf

    options.calling_regions.extend(parse_regions_flag(flags_obj.regions))
    options.exclude_calling_regions.extend(
        parse_regions_flag(flags_obj.exclude_regions))

    options.task_id = flags_obj.task
    options.num_shards = 0 if num_shards is None else num_shards

    options.realigner_enabled = flags_obj.realign_reads
    if options.realigner_enabled:
      options.realigner_options.CopyFrom(realigner.realigner_config(flags_obj))

    options.max_reads_per_partition = flags_obj.max_reads_per_partition

    if (options.mode == deepvariant_pb2.DeepVariantOptions.TRAINING and
        flags_obj.training_random_emit_ref_sites != NO_RANDOM_REF):
      options.variant_caller_options.fraction_reference_sites_to_emit = (
          flags_obj.training_random_emit_ref_sites)

  return options
Exemplo n.º 3
0
 def test_resolve_filespecs(self, task_id, outputs, expected):
   self.assertEqual(io.resolve_filespecs(task_id, *outputs), expected)