PacBio

.github/workflows/qiita-plugin-ci.yml

@@ -83,7 +83,7 @@ jobs:
           # seqtk is a conda-installed requirement for metapool and isn't
           # installed automatically by its setup.py.
           conda config --add channels bioconda
-          conda create -q --yes -n klp python=3.9 'seqtk>=1.4'
+          conda create -q --yes -n klp python=3.9 'seqtk>=1.4' pbtk
 
           conda activate klp
 

pyproject.toml

@@ -59,3 +59,5 @@ dependencies = [
 configure_klp = "qp_klp.scripts.configure_klp:config"
 start_klp = "qp_klp.scripts.start_klp:execute"
 demux = "sequence_processing_pipeline.scripts.cli:demux"
+demux_just_fwd = "sequence_processing_pipeline.Commands:demux_just_fwd"
+pacbio_generate_bam2fastq_commands = "qp_klp.scripts.pacbio_commands:generate_bam2fastq_commands"

src/qp_klp/Assays.py

@@ -494,6 +494,7 @@ def qc_reads(self):
         # is not defined, just fallback to the SPP expected default regex
         if not hasattr(self, 'files_regex'):
             self.files_regex = 'SPP'
+
         # base quality control used by multiple Assay types.
         job = NuQCJob(self.raw_fastq_files_path,
                       self.pipeline.output_path,
@@ -517,7 +518,8 @@ def qc_reads(self):
                       bucket_size=config['bucket_size'],
                       length_limit=config['length_limit'],
                       cores_per_task=config['cores_per_task'],
-                      files_regex=self.files_regex)
+                      files_regex=self.files_regex,
+                      read_length=self.read_length)
 
         if 'NuQCJob' not in self.skip_steps:
             job.run(callback=self.job_callback)

src/qp_klp/PacBioMetagenomicWorkflow.py

@@ -0,0 +1,66 @@
+from .Protocol import PacBio
+from sequence_processing_pipeline.Pipeline import Pipeline
+from .Assays import Metagenomic
+from .Assays import ASSAY_NAME_METAGENOMIC
+from .FailedSamplesRecord import FailedSamplesRecord
+from .Workflows import Workflow
+import pandas as pd
+
+
+class PacBioMetagenomicWorkflow(Workflow, Metagenomic, PacBio):
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+
+        self.mandatory_attributes = ['qclient', 'uif_path',
+                                     'lane_number', 'config_fp',
+                                     'run_identifier', 'output_dir', 'job_id',
+                                     'is_restart']
+
+        self.confirm_mandatory_attributes()
+
+        # second stage initializer that could conceivably be pushed down into
+        # specific children requiring specific parameters.
+        self.qclient = self.kwargs['qclient']
+
+        self.overwrite_prep_with_original = False
+        if 'overwrite_prep_with_original' in self.kwargs:
+            self.overwrite_prep_with_original = \
+                self.kwargs['overwrite_prep_with_original']
+        self.pipeline = Pipeline(self.kwargs['config_fp'],
+                                 self.kwargs['run_identifier'],
+                                 self.kwargs['uif_path'],
+                                 self.kwargs['output_dir'],
+                                 self.kwargs['job_id'],
+                                 ASSAY_NAME_METAGENOMIC,
+                                 lane_number=self.kwargs['lane_number'])
+
+        self.fsr = FailedSamplesRecord(self.kwargs['output_dir'],
+                                       self.pipeline.sample_sheet.samples)
+
+        samples = [
+            {'barcode': sample['barcode_id'],
+             'sample_name': sample['Sample_ID'],
+             'project_name': sample['Sample_Project'],
+             'lane': sample['Lane']}
+            for sample in self.pipeline.sample_sheet.samples]
+        df = pd.DataFrame(samples)
+        sample_list_fp = f"{self.kwargs['output_dir']}/sample_list.tsv"
+        df.to_csv(sample_list_fp, sep='\t', index=False)
+
+        self.master_qiita_job_id = self.kwargs['job_id']
+
+        self.lane_number = self.kwargs['lane_number']
+        self.is_restart = bool(self.kwargs['is_restart'])
+
+        if self.is_restart is True:
+            self.determine_steps_to_skip()
+
+        # this is a convenience member to allow testing w/out updating Qiita.
+        self.update = True
+
+        if 'update_qiita' in kwargs:
+            if not isinstance(kwargs['update_qiita'], bool):
+                raise ValueError("value for 'update_qiita' must be of "
+                                 "type bool")
+
+            self.update = kwargs['update_qiita']

src/qp_klp/Protocol.py

@@ -1,14 +1,17 @@
-from sequence_processing_pipeline.ConvertJob import ConvertJob
+from sequence_processing_pipeline.ConvertJob import (
+    ConvertJob, ConvertPacBioBam2FastqJob)
 from sequence_processing_pipeline.TellReadJob import TellReadJob
 from sequence_processing_pipeline.SeqCountsJob import SeqCountsJob
 from sequence_processing_pipeline.TRIntegrateJob import TRIntegrateJob
 from sequence_processing_pipeline.PipelineError import PipelineError
 from sequence_processing_pipeline.util import determine_orientation
-from os.path import join, split, basename, dirname
 from re import match
 from os import makedirs, rename, walk
+from os.path import join, split, basename, dirname, exists
 from metapool import load_sample_sheet
-from metapool.sample_sheet import PROTOCOL_NAME_ILLUMINA, PROTOCOL_NAME_TELLSEQ
+from metapool.sample_sheet import (
+    PROTOCOL_NAME_ILLUMINA, PROTOCOL_NAME_TELLSEQ,
+    PROTOCOL_NAME_PACBIO_SMRT)
 import pandas as pd
 from glob import glob
 from qiita_client.util import system_call
@@ -79,6 +82,26 @@ def subsample_reads(self):
 
 class Illumina(Protocol):
     protocol_type = PROTOCOL_NAME_ILLUMINA
+    # required files for successful operation for Illumina (making the default
+    # here) both RTAComplete.txt and RunInfo.xml should reside in the root of
+    # the run directory.
+    required_files = ['RTAComplete.txt', 'RunInfo.xml']
+    read_length = 'short'
+
+    def __init__(self) -> None:
+        super().__init__()
+
+        for some_file in self.required_files:
+            if not exists(join(self.run_dir, some_file)):
+                raise PipelineError(f"required file '{some_file}' is not "
+                                    f"present in {self.run_dir}.")
+
+        # verify that RunInfo.xml file is readable.
+        try:
+            fp = open(join(self.run_dir, 'RunInfo.xml'))
+            fp.close()
+        except PermissionError:
+            raise PipelineError('RunInfo.xml is present, but not readable')
 
     def convert_raw_to_fastq(self):
         def get_config(command):
@@ -156,6 +179,7 @@ def generate_sequence_counts(self):
 
 class TellSeq(Protocol):
     protocol_type = PROTOCOL_NAME_TELLSEQ
+    read_length = 'short'
 
     def convert_raw_to_fastq(self):
         config = self.pipeline.get_software_configuration('tell-seq')
@@ -369,3 +393,75 @@ def _post_process_file(self, fastq_file, mapping, lane):
         rename(fastq_file, final_path)
 
         return final_path
+
+
+class PacBio(Protocol):
+    protocol_type = PROTOCOL_NAME_PACBIO_SMRT
+    read_length = 'long'
+
+    def convert_raw_to_fastq(self):
+        config = self.pipeline.get_software_configuration('pacbio_convert')
+
+        job = ConvertPacBioBam2FastqJob(
+            self.pipeline.run_dir,
+            self.pipeline.output_path,
+            self.pipeline.input_file_path,
+            config['queue'],
+            config['nodes'],
+            config['nprocs'],
+            config['wallclock_time_in_minutes'],
+            config['per_process_memory_limit'],
+            config['executable_path'],
+            config['modules_to_load'],
+            self.master_qiita_job_id)
+
+        self.raw_fastq_files_path = join(self.pipeline.output_path,
+                                         'ConvertJob')
+
+        # if ConvertJob already completed, then skip the over the time-
+        # consuming portion but populate the needed member variables.
+        if 'ConvertJob' not in self.skip_steps:
+            job.run(callback=self.job_callback)
+
+        # audit the results to determine which samples failed to convert
+        # properly. Append these to the failed-samples report and also
+        # return the list directly to the caller.
+        failed_samples = job.audit(self.pipeline.get_sample_ids())
+        if hasattr(self, 'fsr'):
+            # NB 16S does not require a failed samples report and
+            # it is not performed by SPP.
+            self.fsr.write(failed_samples, job.__class__.__name__)
+
+        return failed_samples
+
+    def generate_sequence_counts(self):
+        # for other instances of generate_sequence_counts in other objects
+        # the sequence counting needs to be done; however, for PacBio we
+        # already have done it and just need to merge the results.
+        gz_files = glob(f'{self.raw_fastq_files_path}/*/*.fastq.gz')
+        data, missing_files = [], []
+
+        for gzf in gz_files:
+            cf = gzf.replace('.fastq.gz', '.counts.txt')
+            sn = basename(cf).replace(
+                f'_S000_L00{self.lane_number}_R1_001.counts.txt', '')
+            if not exists(cf):
+                missing_files.append(sn)
+                continue
+            with open(cf, 'r') as fh:
+                counts = fh.read().strip()
+            data.append({'Sample_ID': sn,
+                         'raw_reads_r1r2': counts,
+                         'Lane': self.lane_number})
+
+        if missing_files:
+            raise ValueError(f'Missing count files: {missing_files}')
+
+        df = pd.DataFrame(data)
+        self.reports_path = join(self.pipeline.output_path,
+                                 'ConvertJob',
+                                 'SeqCounts.csv')
+        df.to_csv(self.reports_path, index=False)
+
+    def integrate_results(self):
+        pass

src/qp_klp/WorkflowFactory.py

@@ -3,6 +3,7 @@
 from .StandardMetatranscriptomicWorkflow import \
     StandardMetatranscriptomicWorkflow
 from .TellseqMetagenomicWorkflow import TellSeqMetagenomicWorkflow
+from .PacBioMetagenomicWorkflow import PacBioMetagenomicWorkflow
 from sequence_processing_pipeline.Pipeline import Pipeline
 from metapool import load_sample_sheet
 from metapool.sample_sheet import SAMPLE_SHEETS_BY_PROTOCOL as SSBP
@@ -14,7 +15,8 @@ class WorkflowFactory():
     WORKFLOWS = [StandardMetagenomicWorkflow,
                  StandardMetatranscriptomicWorkflow,
                  StandardAmpliconWorkflow,
-                 TellSeqMetagenomicWorkflow]
+                 TellSeqMetagenomicWorkflow,
+                 PacBioMetagenomicWorkflow]
 
     @classmethod
     def _get_instrument_type(cls, sheet):
@@ -76,6 +78,9 @@ def generate_workflow(cls, **kwargs):
                              "sample-sheet or a mapping-file.")
 
         for workflow in WorkflowFactory.WORKFLOWS:
+            if workflow.read_length not in {'short', 'long'}:
+                raise ValueError('Invalid read_length: '
+                                 f'{workflow.read_length} for {workflow}')
             if workflow.assay_type == assay_type:
                 if workflow.protocol_type == instrument_type:
                     # return instantiated workflow object

src/qp_klp/Workflows.py

@@ -8,6 +8,7 @@
 import logging
 from shutil import rmtree
 from .Assays import ASSAY_NAME_AMPLICON
+from metapool.sample_sheet import PROTOCOL_NAME_PACBIO_SMRT
 from sequence_processing_pipeline.util import determine_orientation
 
 
@@ -600,6 +601,10 @@ def _get_postqc_fastq_files(self, out_dir, project):
         if self.pipeline.pipeline_type != ASSAY_NAME_AMPLICON:
             del (files['raw_barcodes'])
 
+        # PacBio doesn't have reverse reads
+        if self.protocol_type == PROTOCOL_NAME_PACBIO_SMRT:
+            del (files['raw_reverse_seqs'])
+
         # confirm expected lists of reads are not empty.
         for f_type in files:
             if not files[f_type]:
@@ -621,7 +626,11 @@ def _load_prep_into_qiita(self, qclient, prep_id, artifact_name,
                  'prep_id': prep_id,
                  'artifact_type': atype,
                  'command_artifact_name': artifact_name,
-                 'add_default_workflow': True,
+                 # this will block adding the default workflow to the
+                 # long read / pacbio processing; which is desirable
+                 # until we have a processing pipeline.
+                 'add_default_workflow': self.read_length != 'long',
+                 # 'add_default_workflow': True,
                  'files': dumps(fastq_files)}
 
         job_id = qclient.post('/qiita_db/artifact/', data=pdata)['job_id']

src/qp_klp/scripts/pacbio_commands.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+
+# -----------------------------------------------------------------------------
+# Copyright (c) 2014--, The Qiita Development Team.
+#
+# Distributed under the terms of the BSD 3-clause License.
+#
+# The full license is in the file LICENSE, distributed with this software.
+# -----------------------------------------------------------------------------
+import click
+import pandas as pd
+from glob import glob
+from os import makedirs
+
+
+@click.command()
+@click.argument('sample_list', required=True)
+@click.argument('run_folder', required=True)
+@click.argument('outdir', required=True)
+@click.argument('threads', required=True, default=1)
+def generate_bam2fastq_commands(sample_list, run_folder, outdir, threads):
+    """Generates the bam2fastq commands"""
+    df = pd.read_csv(sample_list, sep='\t')
+
+    # pacbio raw files are in a hifi_reads folder, wihtin multiple folders
+    # (1_A01, 2_A02, ect), within the run-id folder; and are named
+    # m[run-id]XXX.hifi_reads.[barcode].bam; thus to find the [barcode] we
+    # can split on '.' and then the second to last element [-2].
+    files = {f.split('.')[-2]: f
+             for f in glob(f'{run_folder}/*/hifi_reads/*.bam')}
+
+    makedirs(outdir, exist_ok=True)
+
+    commands, missing_files = [], []
+    for _, row in df.iterrows():
+        bc = row['barcode']
+        sn = row['sample_name']
+        pn = row['project_name']
+        lane = row['lane']
+        if bc not in files:
+            missing_files.append(bc)
+            continue
+        od = f'{outdir}/{pn}'
+
+        makedirs(od, exist_ok=True)
+        fn = f'{od}/{sn}_S000_L00{lane}_R1_001'
+        cmd = (f'bam2fastq -j {threads} -o {fn} -c 9 '
+               f'{files[bc]}; '
+               f'fqtools count {fn}.fastq.gz > '
+               f'{fn}.counts.txt')
+        commands.append(cmd)
+
+    if missing_files:
+        raise ValueError(
+            f'{run_folder} is missing barcodes: {missing_files}')
+
+    for cmd in commands:
+        print(cmd)