def main(config_file,
align_sam,
ref_file,
fastq_one,
fastq_pair=None,
sample_name="",
rg_name="",
pu_name=""):
with open(config_file) as in_handle:
config = yaml.load(in_handle)
picard = BroadRunner(config["program"]["picard"],
max_memory=config["algorithm"].get("java_memory", ""))
platform = config["algorithm"]["platform"]
if platform.lower() == "illumina":
qual_format = "Illumina"
else:
raise ValueError("Need to specify quality format for %s" % platform)
index_ref_file(picard, ref_file)
base_dir = os.path.split(align_sam)[0]
with curdir_tmpdir() as tmp_dir:
out_fastq_bam = picard_fastq_to_bam(picard, fastq_one, fastq_pair,
base_dir, platform, qual_format,
sample_name, rg_name, pu_name,
tmp_dir)
out_bam = picard_merge_bam(picard, align_sam, out_fastq_bam, ref_file,
tmp_dir, fastq_pair is not None)
sort_bam = picard_sort(picard, out_bam, tmp_dir)
save_diskspace(out_fastq_bam, "Combined into output BAM %s" % out_bam,
config)
save_diskspace(out_bam, "Sorted to %s" % sort_bam, config)
def align(fastq_file, pair_file, index_dir, names, align_dir, data):
"""Perform piped alignment of fastq input files, generating sorted, deduplicated BAM.
TODO: Use streaming with new development version of SNAP to feed into
structural variation preparation de-duplication.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
assert not data.get("align_split"), "Split alignments not supported with SNAP"
snap = config_utils.get_program("snap", data["config"])
num_cores = data["config"]["algorithm"].get("num_cores", 1)
resources = config_utils.get_resources("snap", data["config"])
max_mem = resources.get("memory", "1G")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
with file_transaction(out_file) as tx_out_file:
with utils.curdir_tmpdir(data) as work_dir:
if fastq_file.endswith(".bam"):
cmd_name = "paired" if bam.is_paired(fastq_file) else "single"
else:
cmd_name = "single" if not pair_file else "paired"
cmd = ("{snap} {cmd_name} {index_dir} {fastq_file} {pair_file} "
"-rg '{rg_info}' -t {num_cores} -sa -so -sm {max_mem} -o {tx_out_file}")
do.run(cmd.format(**locals()), "SNAP alignment: %s" % names["sample"])
data["work_bam"] = out_file
return data
def align_pipe(fastq_file, pair_file, ref_file, names, align_dir, data):
"""Perform piped alignment of fastq input files, generating sorted output BAM.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
if data.get("align_split"):
final_file = out_file
out_file, data = alignprep.setup_combine(final_file, data)
fastq_file = alignprep.split_namedpipe_cl(fastq_file, data)
if pair_file:
pair_file = alignprep.split_namedpipe_cl(pair_file, data)
else:
final_file = None
samtools = config_utils.get_program("samtools", data["config"])
novoalign = config_utils.get_program("novoalign", data["config"])
resources = config_utils.get_resources("novoalign", data["config"])
num_cores = data["config"]["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "1G")
extra_novo_args = " ".join(_novoalign_args_from_config(data["config"]))
rg_info = get_rg_info(names)
if not utils.file_exists(out_file) and (final_file is None or not utils.file_exists(final_file)):
with utils.curdir_tmpdir(data) as work_dir:
with postalign.tobam_cl(data, out_file, pair_file != "") as (tobam_cl, tx_out_file):
tx_out_prefix = os.path.splitext(tx_out_file)[0]
cmd = ("{novoalign} -o SAM '{rg_info}' -d {ref_file} -f {fastq_file} {pair_file} "
" -c {num_cores} {extra_novo_args} | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, fastq_file)])
data["work_bam"] = out_file
return data
def align_bam(in_bam, ref_file, names, align_dir, data):
"""Perform direct alignment of an input BAM file with BWA using pipes.
This avoids disk IO by piping between processes:
- samtools sort of input BAM to queryname
- bedtools conversion to interleaved FASTQ
- bwa-mem alignment
- samtools conversion to BAM
- samtools sort to coordinate
"""
config = data["config"]
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
bedtools = config_utils.get_program("bedtools", config)
bwa = config_utils.get_program("bwa", config)
resources = config_utils.get_resources("samtools", config)
num_cores = config["algorithm"].get("num_cores", 1)
# adjust memory for samtools since used for input and output
max_mem = config_utils.adjust_memory(resources.get("memory", "1G"),
3, "decrease")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
with utils.curdir_tmpdir() as work_dir:
with postalign.tobam_cl(data, out_file, bam.is_paired(in_bam)) as (tobam_cl, tx_out_file):
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = ("{samtools} sort -n -o -l 0 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {bedtools} bamtofastq -i /dev/stdin -fq /dev/stdout -fq2 /dev/stdout "
"| {bwa} mem -p -M -t {num_cores} -R '{rg_info}' -v 1 {ref_file} - | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "bwa mem alignment from BAM: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, in_bam)])
return out_file
def _extract_split_and_discordants(in_bam, work_dir, data):
"""Retrieve split-read alignments from input BAM file.
"""
sr_file = os.path.join(work_dir, "%s-sr.bam" % os.path.splitext(os.path.basename(in_bam))[0])
disc_file = os.path.join(work_dir, "%s-disc.bam" % os.path.splitext(os.path.basename(in_bam))[0])
samblaster = config_utils.get_program("samblaster", data["config"])
sambamba = config_utils.get_program("sambamba", data["config"])
cores = utils.get_in(data, ("config", "algorithm", "num_cores"), 1)
resources = config_utils.get_resources("sambamba", data["config"])
mem = config_utils.adjust_memory(resources.get("memory", "2G"),
3, "decrease")
if not utils.file_exists(sr_file) or not utils.file_exists(disc_file):
with file_transaction(sr_file) as tx_sr_file:
with file_transaction(disc_file) as tx_disc_file:
with utils.curdir_tmpdir() as tmpdir:
tobam_cmd = ("{sambamba} view -S -f bam -l 0 /dev/stdin | "
"{sambamba} sort -t {cores} -m {mem} --tmpdir {tmpdir} "
"-o {out_file} /dev/stdin")
splitter_cmd = tobam_cmd.format(out_file=tx_sr_file, **locals())
discordant_cmd = tobam_cmd.format(out_file=tx_disc_file, **locals())
cmd = ("{sambamba} sort -t {cores} -m {mem} --tmpdir={tmpdir} "
"-n -o /dev/stdout -l 0 {in_bam} | "
"{sambamba} view -h /dev/stdin | "
"{samblaster} --splitterFile >({splitter_cmd}) --discordantFile >({discordant_cmd}) "
"-o /dev/null")
do.run(cmd.format(**locals()), "samblaster: split and discordant reads", data)
return sr_file, disc_file
def _run_recal_bam(dup_align_bam, recal_file, region, ref_file, out_file,
config):
"""Run BAM recalibration with the given input
"""
if not file_exists(out_file):
if _recal_available(recal_file):
broad_runner = broad.runner_from_config(config)
intervals = config["algorithm"].get("variant_regions", None)
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = [
"-T",
"PrintReads",
"-BQSR",
recal_file,
"-R",
ref_file,
"-I",
dup_align_bam,
"--out",
tx_out_file,
]
if region:
params += ["-L", region]
if intervals:
params += ["-L", intervals]
if params and intervals:
params += ["--interval_set_rule", "INTERSECTION"]
broad_runner.run_gatk(params, tmp_dir)
elif region:
subset_bam_by_region(dup_align_bam, region, out_file)
else:
shutil.copy(dup_align_bam, out_file)
return out_file
def align_pipe(fastq_file, pair_file, ref_file, names, align_dir, config):
"""Perform piped alignment of fastq input files, generating sorted output BAM.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
novoalign = config_utils.get_program("novoalign", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "1G")
qual_format = config["algorithm"].get("quality_format", "").lower()
qual_flag = "ILMFQ" if qual_format == "illumina" else "STDFQ"
rg_info = get_rg_info(names)
if not utils.file_exists(out_file):
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
cmd = ("{novoalign} -o SAM '{rg_info}' -d {ref_file} -f {fastq_file} {pair_file} "
" -F {qual_flag} -c {num_cores} "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}")
cmd = cmd.format(**locals())
log_cmd("Novoalign: %s" % names["sample"], None, cmd)
subprocess.check_call(cmd, shell=True)
return out_file
def _run_recal_bam(dup_align_bam, recal_file, region, ref_file, out_file, config):
"""Run BAM recalibration with the given input
"""
if not file_exists(out_file):
if _recal_available(recal_file):
broad_runner = broad.runner_from_config(config)
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = ["-T", "PrintReads",
"-BQSR", recal_file,
"-R", ref_file,
"-I", dup_align_bam,
"--out", tx_out_file,
]
base_bed = config["algorithm"].get("variant_regions", None)
region_bed = subset_variant_regions(base_bed, region, tx_out_file)
if region_bed:
params += ["-L", region_bed, "--interval_set_rule", "INTERSECTION"]
elif region:
params += ["-L", region, "--interval_set_rule", "INTERSECTION"]
broad_runner.run_gatk(params, tmp_dir)
elif region:
subset_bam_by_region(dup_align_bam, region, out_file)
else:
shutil.copy(dup_align_bam, out_file)
return out_file
def run_gatk(self, params, tmp_dir=None):
#support_nt = set(["UnifiedGenotyper", "VariantEval"])
support_nt = set()
support_nct = set(["BaseRecalibrator"])
gatk_jar = self._get_jar("GenomeAnalysisTK", ["GenomeAnalysisTKLite"])
local_args = []
cores = self._resources.get("cores", None)
if cores and cores > 1:
atype_index = params.index("-T") if params.count("-T") > 0 \
else params.index("--analysis_type")
prog = params[atype_index + 1]
if prog in support_nt:
params.extend(["-nt", str(cores)])
elif prog in support_nct:
params.extend(["-nct", str(cores)])
if len([x for x in params if x.startswith(("-U", "--unsafe"))]) == 0:
params.extend(["-U", "LENIENT_VCF_PROCESSING"])
with curdir_tmpdir() as local_tmp_dir:
if tmp_dir is None:
tmp_dir = local_tmp_dir
local_args.append("-Djava.io.tmpdir=%s" % tmp_dir)
cl = ["java"] + self._jvm_opts + local_args + \
["-jar", gatk_jar] + [str(x) for x in params]
#print " ".join(cl)
subprocess.check_call(cl)
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform realignment of input BAM file, handling sorting of input/output with novosort.
Uses unix pipes for avoid IO writing between steps:
- novosort of input BAM to coordinates
- alignment with novoalign
- conversion to BAM with samtools
- coordinate sorting with novosort
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
novosort = config_utils.get_program("novosort", config)
novoalign = config_utils.get_program("novoalign", config)
samtools = config_utils.get_program("samtools", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "4G")
extra_novo_args = " ".join(_novoalign_args_from_config(config, False))
if not file_exists(out_file):
with curdir_tmpdir(base_dir=align_dir) as work_dir:
with file_transaction(out_file) as tx_out_file:
rg_info = get_rg_info(names)
cmd = ("{novosort} -c {num_cores} -m {max_mem} --compression 0 "
" -n -t {work_dir} {in_bam} "
"| {novoalign} -o SAM '{rg_info}' -d {ref_file} -f /dev/stdin "
" -F BAMPE -c {num_cores} {extra_novo_args} "
"| {samtools} view -b -S -u - "
"| {novosort} -c {num_cores} -m {max_mem} -t {work_dir} "
" -o {tx_out_file} /dev/stdin")
cmd = cmd.format(**locals())
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def run_gatk(self, params, tmp_dir=None):
#support_nt = set(["UnifiedGenotyper", "VariantEval"])
support_nt = set()
support_nct = set(["BaseRecalibrator"])
gatk_jar = self._get_jar("GenomeAnalysisTK", ["GenomeAnalysisTKLite"])
local_args = []
cores = self._resources.get("cores", None)
if cores and cores > 1:
atype_index = params.index("-T") if params.count("-T") > 0 \
else params.index("--analysis_type")
prog = params[atype_index + 1]
if prog in support_nt:
params.extend(["-nt", str(cores)])
elif prog in support_nct:
params.extend(["-nct", str(cores)])
if len([x for x in params if x.startswith(("-U", "--unsafe"))]) == 0:
params.extend(["-U", "LENIENT_VCF_PROCESSING"])
with curdir_tmpdir() as local_tmp_dir:
if tmp_dir is None:
tmp_dir = local_tmp_dir
local_args.append("-Djava.io.tmpdir=%s" % tmp_dir)
cl = ["java"] + self._jvm_opts + local_args + \
["-jar", gatk_jar] + [str(x) for x in params]
#print " ".join(cl)
subprocess.check_call(cl)
def align_pipe(fastq_file, pair_file, ref_file, names, align_dir, config):
"""Perform piped alignment of fastq input files, generating sorted output BAM.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
novoalign = config_utils.get_program("novoalign", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "1G")
extra_novo_args = " ".join(_novoalign_args_from_config(config, False))
rg_info = get_rg_info(names)
if not utils.file_exists(out_file):
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
cmd = (
"{novoalign} -o SAM '{rg_info}' -d {ref_file} -f {fastq_file} {pair_file} "
" -c {num_cores} {extra_novo_args} "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}"
)
cmd = cmd.format(**locals())
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform realignment of input BAM file, handling sorting of input/output with novosort.
Uses unix pipes for avoid IO writing between steps:
- novosort of input BAM to coordinates
- alignment with novoalign
- conversion to BAM with samtools
- coordinate sorting with novosort
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
novosort = config_utils.get_program("novosort", config)
novoalign = config_utils.get_program("novoalign", config)
samtools = config_utils.get_program("samtools", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "4G")
extra_novo_args = " ".join(_novoalign_args_from_config(config, False))
if not file_exists(out_file):
with curdir_tmpdir(base_dir=align_dir) as work_dir:
with file_transaction(out_file) as tx_out_file:
rg_info = get_rg_info(names)
cmd = (
"{novosort} -c {num_cores} -m {max_mem} --compression 0 "
" -n -t {work_dir} {in_bam} "
"| {novoalign} -o SAM '{rg_info}' -d {ref_file} -f /dev/stdin "
" -F BAMPE -c {num_cores} {extra_novo_args} "
"| {samtools} view -b -S -u - "
"| {novosort} -c {num_cores} -m {max_mem} -t {work_dir} "
" -o {tx_out_file} /dev/stdin")
cmd = cmd.format(**locals())
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def _gatk_count_covariates(broad_runner, dup_align_bam, ref_file, platform,
snp_file, intervals):
"""Step 1 of GATK recalibration process -- counting covariates.
"""
out_file = "%s.recal" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if has_aligned_reads(dup_align_bam):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = ["-T", "CountCovariates",
"-cov", "ReadGroupCovariate",
"-cov", "QualityScoreCovariate",
"-cov", "CycleCovariate",
"-cov", "DinucCovariate",
"-recalFile", tx_out_file,
"-I", dup_align_bam,
"-R", ref_file,
"-l", "INFO",
"-U",
"-OQ",
"--default_platform", platform,
]
if snp_file:
params += ["--knownSites", snp_file]
if intervals:
params += ["-L", intervals, "--interval_set_rule", "INTERSECTION"]
broad_runner.run_gatk(params, tmp_dir)
else:
with open(out_file, "w") as out_handle:
out_handle.write("# No aligned reads")
return out_file
def _gatk_table_recalibrate(broad_runner, dup_align_bam, ref_file, recal_file,
platform, intervals):
"""Step 2 of GATK recalibration -- use covariates to re-write output file.
"""
out_file = "%s-gatkrecal.bam" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if _recal_available(recal_file):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = ["-T", "TableRecalibration",
"-recalFile", recal_file,
"-R", ref_file,
"-I", dup_align_bam,
"--out", tx_out_file,
"-baq", "RECALCULATE",
"-l", "INFO",
"-U",
"-OQ",
"--default_platform", platform,
]
if intervals:
params += ["-L", intervals, "--interval_set_rule", "INTERSECTION"]
broad_runner.run_gatk(params, tmp_dir)
else:
shutil.copy(dup_align_bam, out_file)
return out_file
def _run_toplevel(config,
config_file,
work_dir,
parallel,
fc_dir=None,
run_info_yaml=None):
"""
Run toplevel analysis, processing a set of input files.
config_file -- Main YAML configuration file with system parameters
fc_dir -- Directory of fastq files to process
run_info_yaml -- YAML configuration file specifying inputs to process
"""
parallel = log.create_base_logger(config, parallel)
log.setup_local_logging(config, parallel)
dirs = setup_directories(work_dir, fc_dir, config, config_file)
config_file = os.path.join(dirs["config"], os.path.basename(config_file))
samples = run_info.organize(dirs, config, run_info_yaml)
pipelines = _pair_lanes_with_pipelines(samples)
final = []
with utils.curdir_tmpdir({"config": config}) as tmpdir:
tempfile.tempdir = tmpdir
for pipeline, pipeline_items in pipelines.items():
pipeline_items = _add_provenance(pipeline_items, dirs, parallel,
config)
versioncheck.testall(pipeline_items)
for xs in pipeline.run(config, config_file, parallel, dirs,
pipeline_items):
if len(xs) == 1:
upload.from_sample(xs[0])
final.append(xs[0])
def align_bam(in_bam, ref_file, names, align_dir, data):
"""Perform realignment of input BAM file; uses unix pipes for avoid IO.
"""
config = data["config"]
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
novoalign = config_utils.get_program("novoalign", config)
samtools = config_utils.get_program("samtools", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "4G").upper()
extra_novo_args = " ".join(_novoalign_args_from_config(config, False))
if not file_exists(out_file):
with utils.curdir_tmpdir(data, base_dir=align_dir) as work_dir:
with postalign.tobam_cl(data, out_file, bam.is_paired(in_bam)) as (tobam_cl, tx_out_file):
rg_info = get_rg_info(names)
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = ("{samtools} sort -n -o -l 0 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {novoalign} -o SAM '{rg_info}' -d {ref_file} -f /dev/stdin "
" -F BAMPE -c {num_cores} {extra_novo_args} | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, in_bam)])
return out_file
def run_gatk(self,
params,
tmp_dir=None,
log_error=True,
memory_retry=False,
data=None,
region=None):
with curdir_tmpdir() as local_tmp_dir:
if tmp_dir is None:
tmp_dir = local_tmp_dir
cl = self.cl_gatk(params, tmp_dir)
atype_index = cl.index("-T") if cl.count("-T") > 0 \
else cl.index("--analysis_type")
prog = cl[atype_index + 1]
if memory_retry:
do.run_memory_retry(cl,
"GATK: {0}".format(prog),
data,
region=region)
else:
do.run(cl,
"GATK: {0}".format(prog),
data,
region=region,
log_error=log_error)
def run_mutect(self, params, tmp_dir=None):
with curdir_tmpdir() as local_tmp_dir:
if tmp_dir is None:
tmp_dir = local_tmp_dir
cl = self.cl_mutect(params, tmp_dir)
prog = "MuTect"
do.run(cl, "MuTect: {0}".format(prog), None)
def _run_fastqc(bam_file, data, fastqc_out):
"""Run fastqc, generating report in specified directory and parsing metrics.
Downsamples to 10 million reads to avoid excessive processing times with large
files, unless we're running a Standard/QC pipeline.
"""
sentry_file = os.path.join(fastqc_out, "fastqc_report.html")
if not os.path.exists(sentry_file):
work_dir = os.path.dirname(fastqc_out)
utils.safe_makedir(work_dir)
ds_bam = (bam.downsample(bam_file, data, 1e7) if data.get(
"analysis", "").lower() not in ["standard"] else None)
bam_file = ds_bam if ds_bam else bam_file
num_cores = data["config"]["algorithm"].get("num_cores", 1)
with utils.curdir_tmpdir(data, work_dir) as tx_tmp_dir:
with utils.chdir(tx_tmp_dir):
cl = [
config_utils.get_program("fastqc", data["config"]), "-t",
str(num_cores), "-o", tx_tmp_dir, "-f", "bam", bam_file
]
do.run(cl, "FastQC: %s" % data["name"][-1])
fastqc_outdir = os.path.join(
tx_tmp_dir, "%s_fastqc" %
os.path.splitext(os.path.basename(bam_file))[0])
if os.path.exists("%s.zip" % fastqc_outdir):
os.remove("%s.zip" % fastqc_outdir)
if not os.path.exists(sentry_file):
if os.path.exists(fastqc_out):
shutil.rmtree(fastqc_out)
shutil.move(fastqc_outdir, fastqc_out)
if ds_bam and os.path.exists(ds_bam):
os.remove(ds_bam)
parser = FastQCParser(fastqc_out)
stats = parser.get_fastqc_summary()
return stats
def align_bam(in_bam, ref_file, names, align_dir, data):
"""Perform realignment of input BAM file; uses unix pipes for avoid IO.
"""
config = data["config"]
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
novoalign = config_utils.get_program("novoalign", config)
samtools = config_utils.get_program("samtools", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "4G")
extra_novo_args = " ".join(_novoalign_args_from_config(config, False))
if not file_exists(out_file):
with utils.curdir_tmpdir(data, base_dir=align_dir) as work_dir:
with postalign.tobam_cl(data, out_file,
bam.is_paired(in_bam)) as (tobam_cl,
tx_out_file):
rg_info = get_rg_info(names)
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = (
"{samtools} sort -n -o -l 0 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {novoalign} -o SAM '{rg_info}' -d {ref_file} -f /dev/stdin "
" -F BAMPE -c {num_cores} {extra_novo_args} | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "Novoalign: %s" % names["sample"], None, [
do.file_nonempty(tx_out_file),
do.file_reasonable_size(tx_out_file, in_bam)
])
return out_file
def _run_toplevel(config, config_file, work_dir, parallel,
fc_dir=None, run_info_yaml=None):
"""
Run toplevel analysis, processing a set of input files.
config_file -- Main YAML configuration file with system parameters
fc_dir -- Directory of fastq files to process
run_info_yaml -- YAML configuration file specifying inputs to process
"""
parallel = log.create_base_logger(config, parallel)
log.setup_local_logging(config, parallel)
fastq_dir, galaxy_dir, config_dir = _get_full_paths(get_fastq_dir(fc_dir)
if fc_dir else None,
config, config_file)
config_file = os.path.join(config_dir, os.path.basename(config_file))
dirs = {"fastq": fastq_dir, "galaxy": galaxy_dir,
"work": work_dir, "flowcell": fc_dir, "config": config_dir}
run_items = run_info.organize(dirs, config, run_info_yaml)
run_parallel = parallel_runner(parallel, dirs, config, config_file)
# process each flowcell lane
lane_items = lane.process_all_lanes(run_items, run_parallel)
pipelines = _pair_lanes_with_pipelines(lane_items)
final = []
with utils.curdir_tmpdir() as tmpdir:
tempfile.tempdir = tmpdir
for pipeline, pipeline_items in pipelines.items():
pipeline_items = _add_provenance(pipeline_items, dirs, run_parallel, parallel, config)
versioncheck.testall(pipeline_items)
for xs in pipeline.run(config, config_file, run_parallel, parallel, dirs, pipeline_items):
if len(xs) == 1:
upload.from_sample(xs[0])
final.append(xs[0])
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform direct alignment of an input BAM file with BWA using pipes.
This avoids disk IO by piping between processes:
- samtools sort of input BAM to queryname
- bedtools conversion to interleaved FASTQ
- bwa-mem alignment
- samtools conversion to BAM
- samtools sort to coordinate
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
bedtools = config_utils.get_program("bedtools", config)
bwa = config_utils.get_program("bwa", config)
resources = config_utils.get_resources("samtools", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "768M")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
_check_samtools_version()
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = ("{samtools} sort -n -o -l 0 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {bedtools} bamtofastq -i /dev/stdin -fq /dev/stdout -fq2 /dev/stdout "
"| {bwa} mem -p -M -t {num_cores} -R '{rg_info}' -v 1 {ref_file} - "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}")
logger.info(cmd.format(**locals()))
subprocess.check_call(cmd.format(**locals()), shell=True)
return out_file
def align_pipe(fastq_file, pair_file, ref_file, names, align_dir, config):
"""Perform piped alignment of fastq input files, generating sorted output BAM.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
bwa = config_utils.get_program("bwa", config)
resources = config_utils.get_resources("samtools", config)
num_cores = config["algorithm"].get("num_cores", 1)
# adjust memory for samtools since used alongside alignment
max_mem = config_utils.adjust_memory(resources.get("memory", "2G"),
3, "decrease")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
novoalign.check_samtools_version(config)
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
cmd = ("{bwa} mem -M -t {num_cores} -R '{rg_info}' -v 1 {ref_file} "
"{fastq_file} {pair_file} "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}")
cmd = cmd.format(**locals())
do.run(cmd, "bwa mem alignment from fastq: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform realignment of input BAM file, handling sorting of input/output with novosort.
Uses unix pipes for avoid IO writing between steps:
- novosort of input BAM to coordinates
- alignment with novoalign
- conversion to BAM with samtools
- coordinate sorting with novosort
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
if not file_exists(out_file):
with curdir_tmpdir(base_dir=align_dir) as work_dir:
with file_transaction(out_file) as tx_out_file:
resources = config_utils.get_resources("novoalign", config)
num_cores = resources["cores"]
max_mem = resources.get("memory", "4G")
read_sort = sh.novosort.bake(in_bam, c=num_cores, m=max_mem,
compression=0, n=True, t=work_dir,
_piped=True)
rg_info = r"SAM '@RG\tID:{rg}\tPL:{pl}\tPU:{pu}\tSM:{sample}'".format(**names)
align = sh.novoalign.bake(o=rg_info, d=ref_file, f="/dev/stdin", F="BAMPE",
c=num_cores, _piped=True)
to_bam = sh.samtools.view.bake(b=True, S=True, u=True,
_piped=True).bake("-")
coord_sort = sh.novosort.bake("/dev/stdin", c=num_cores, m=max_mem,
o=tx_out_file, t=work_dir)
subprocess.check_call("%s | %s | %s | %s" % (read_sort, align, to_bam, coord_sort),
shell=True)
return out_file
def split_bam_file(bam_file, split_size, out_dir, config):
"""Split a BAM file into paired end fastq splits based on split size.
XXX Need to generalize for non-paired end inputs.
"""
existing = _find_current_bam_split(bam_file, out_dir)
if len(existing) > 0:
return existing
pipe = True
utils.safe_makedir(out_dir)
broad_runner = broad.runner_from_config(config)
out_files = []
def new_handle(num):
out = []
for pair in [1, 2]:
fname = os.path.join(
out_dir,
"{base}_{pair}_{num}.fastq".format(
base=os.path.splitext(os.path.basename(bam_file))[0], pair=pair, num=num
),
)
out += [fname, open(fname, "w")]
return out
with utils.curdir_tmpdir(base_dir=config_utils.get_resources("tmp", config).get("dir")) as tmp_dir:
if pipe:
sort_file = os.path.join(tmp_dir, "%s-sort.bam" % os.path.splitext(os.path.basename(bam_file))[0])
os.mkfifo(sort_file)
broad_runner.run_fn("picard_sort", bam_file, "queryname", sort_file, compression_level=0, pipe=True)
else:
sort_file = os.path.join(out_dir, "%s-sort.bam" % os.path.splitext(os.path.basename(bam_file))[0])
broad_runner.run_fn("picard_sort", bam_file, "queryname", sort_file)
samfile = pysam.Samfile(sort_file, "rb")
i = 0
num = 0
f1, out_handle1, f2, out_handle2 = new_handle(num)
out_files.append([f1, f2, None])
for x1, x2 in utils.partition_all(2, samfile):
x1_seq, x1_qual = _get_seq_qual(x1)
out_handle1.write("@%s/1\n%s\n+\n%s\n" % (i, x1_seq, x1_qual))
x2_seq, x2_qual = _get_seq_qual(x2)
out_handle2.write("@%s/2\n%s\n+\n%s\n" % (i, x2_seq, x2_qual))
i += 1
if i % split_size == 0:
num += 1
out_handle1.close()
out_handle2.close()
f1, out_handle1, f2, out_handle2 = new_handle(num)
out_files.append([f1, f2, num])
out_handle1.close()
out_handle2.close()
samfile.close()
if pipe:
os.unlink(sort_file)
else:
utils.save_diskspace(sort_file, "Split to {}".format(out_files[0][0]), config)
return out_files
def gatk_indel_realignment(runner, align_bam, ref_file, intervals,
region=None, out_file=None, deep_coverage=False):
"""Perform realignment of BAM file in specified regions
"""
if out_file is None:
out_file = "%s-realign.bam" % os.path.splitext(align_bam)[0]
if not file_exists(out_file):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
logger.info("GATK IndelRealigner: %s %s" %
(os.path.basename(align_bam), region))
params = ["-T", "IndelRealigner",
"-I", align_bam,
"-R", ref_file,
"-targetIntervals", intervals,
"-o", tx_out_file,
"-l", "INFO",
]
if region:
params += ["-L", region]
if deep_coverage:
params += ["--maxReadsInMemory", "300000",
"--maxReadsForRealignment", str(int(5e5)),
"--maxReadsForConsensuses", "500",
"--maxConsensuses", "100"]
try:
runner.run_gatk(params, tmp_dir)
except:
logger.exception("Running GATK IndelRealigner failed: {} {}".format(
os.path.basename(align_bam), region))
raise
return out_file
def _gatk_base_recalibrator(broad_runner, dup_align_bam, ref_file, platform,
dbsnp_file, intervals):
"""Step 1 of GATK recalibration process, producing table of covariates.
"""
out_file = "%s.grp" % os.path.splitext(dup_align_bam)[0]
plot_file = "%s-plots.pdf" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if has_aligned_reads(dup_align_bam, intervals):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = ["-T", "BaseRecalibrator",
"-o", tx_out_file,
"--plot_pdf_file", plot_file,
"-I", dup_align_bam,
"-R", ref_file,
]
downsample_pct = _get_downsample_pct(broad_runner, dup_align_bam)
if downsample_pct:
params += ["--downsample_to_fraction", str(downsample_pct),
"--downsampling_type", "ALL_READS"]
# GATK-lite does not have support for
# insertion/deletion quality modeling
if broad_runner.gatk_type() == "lite":
params += ["--disable_indel_quals"]
if dbsnp_file:
params += ["--knownSites", dbsnp_file]
if intervals:
params += ["-L", intervals, "--interval_set_rule", "INTERSECTION"]
broad_runner.run_gatk(params, tmp_dir)
else:
with open(out_file, "w") as out_handle:
out_handle.write("# No aligned reads")
return out_file
def _gatk_recalibrate(broad_runner, dup_align_bam, ref_file, recal_file,
platform, intervals):
"""Step 2 of GATK recalibration -- use covariates to re-write output file.
"""
out_file = "%s-gatkrecal.bam" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if _recal_available(recal_file):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = [
"-T",
"PrintReads",
"-BQSR",
recal_file,
"-R",
ref_file,
"-I",
dup_align_bam,
"--out",
tx_out_file,
]
if intervals:
params += [
"-L", intervals, "--interval_set_rule",
"INTERSECTION"
]
broad_runner.run_gatk(params, tmp_dir)
else:
shutil.copy(dup_align_bam, out_file)
return out_file
def _extract_split_and_discordants(in_bam, work_dir, data):
"""Retrieve split-read alignments from input BAM file.
"""
dedup_file = os.path.join(work_dir, "%s-dedup.bam" % os.path.splitext(os.path.basename(in_bam))[0])
sr_file = os.path.join(work_dir, "%s-sr.bam" % os.path.splitext(os.path.basename(in_bam))[0])
disc_file = os.path.join(work_dir, "%s-disc.bam" % os.path.splitext(os.path.basename(in_bam))[0])
samtools = config_utils.get_program("samtools", data["config"])
cores = utils.get_in(data, ("config", "algorithm", "num_cores"), 1)
resources = config_utils.get_resources("sambamba", data["config"])
mem = config_utils.adjust_memory(resources.get("memory", "2G"),
3, "decrease").upper()
if not utils.file_exists(sr_file) or not utils.file_exists(disc_file) or utils.file_exists(dedup_file):
with utils.curdir_tmpdir(data) as tmpdir:
with file_transaction(sr_file) as tx_sr_file:
with file_transaction(disc_file) as tx_disc_file:
with file_transaction(dedup_file) as tx_dedup_file:
samblaster_cl = postalign.samblaster_dedup_sort(data, tmpdir, tx_dedup_file,
tx_sr_file, tx_disc_file)
out_base = os.path.join(tmpdir, "%s-namesort" % os.path.splitext(in_bam)[0])
cmd = ("{samtools} sort -n -o -@ {cores} -m {mem} {in_bam} {out_base} | "
"{samtools} view -h - | ")
cmd = cmd.format(**locals()) + samblaster_cl
do.run(cmd, "samblaster: split and discordant reads", data)
for fname in [sr_file, disc_file, dedup_file]:
bam.index(fname, data["config"])
return dedup_file, sr_file, disc_file
def _run_toplevel(config, config_file, work_dir, parallel,
fc_dir=None, run_info_yaml=None):
"""
Run toplevel analysis, processing a set of input files.
config_file -- Main YAML configuration file with system parameters
fc_dir -- Directory of fastq files to process
run_info_yaml -- YAML configuration file specifying inputs to process
"""
parallel = log.create_base_logger(config, parallel)
log.setup_local_logging(config, parallel)
fastq_dir, galaxy_dir, config_dir = _get_full_paths(get_fastq_dir(fc_dir)
if fc_dir else None,
config, config_file)
config_file = os.path.join(config_dir, os.path.basename(config_file))
dirs = {"fastq": fastq_dir, "galaxy": galaxy_dir,
"work": work_dir, "flowcell": fc_dir, "config": config_dir}
samples = run_info.organize(dirs, config, run_info_yaml)
pipelines = _pair_lanes_with_pipelines(samples)
final = []
with utils.curdir_tmpdir() as tmpdir:
tempfile.tempdir = tmpdir
for pipeline, pipeline_items in pipelines.items():
pipeline_items = _add_provenance(pipeline_items, dirs, parallel, config)
versioncheck.testall(pipeline_items)
for xs in pipeline.run(config, config_file, parallel, dirs, pipeline_items):
if len(xs) == 1:
upload.from_sample(xs[0])
final.append(xs[0])
def align_pipe(fastq_file, pair_file, ref_file, names, align_dir, config):
"""Perform piped alignment of fastq input files, generating sorted output BAM.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
novoalign = config_utils.get_program("novoalign", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "1G")
extra_novo_args = " ".join(_novoalign_args_from_config(config, False))
rg_info = get_rg_info(names)
if not utils.file_exists(out_file):
check_samtools_version()
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
cmd = ("{novoalign} -o SAM '{rg_info}' -d {ref_file} -f {fastq_file} {pair_file} "
" -c {num_cores} {extra_novo_args} "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}")
cmd = cmd.format(**locals())
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def _gatk_count_covariates(picard, dup_align_bam, ref_file, platform,
snp_file):
"""Step 1 of GATK recalibration process -- counting covariates.
"""
out_file = "%s.recal" % os.path.splitext(dup_align_bam)[0]
params = ["-T", "CountCovariates",
"-cov", "ReadGroupCovariate",
"-cov", "QualityScoreCovariate",
"-cov", "CycleCovariate",
"-cov", "DinucCovariate",
"-cov", "TileCovariate",
"-recalFile", out_file,
"-I", dup_align_bam,
"-R", ref_file,
"-l", "INFO",
"-U",
"-OQ",
"--default_platform", platform,
]
if snp_file:
params += ["-B:dbsnp,VCF", snp_file]
if not os.path.exists(out_file):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file):
picard.run_gatk(params, tmp_dir)
return out_file
def align_pipe(fastq_file, pair_file, ref_file, names, align_dir, data):
"""Perform piped alignment of fastq input files, generating sorted output BAM.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
if data.get("align_split"):
final_file = out_file
out_file, data = alignprep.setup_combine(final_file, data)
fastq_file = alignprep.split_namedpipe_cl(fastq_file, data)
if pair_file:
pair_file = alignprep.split_namedpipe_cl(pair_file, data)
else:
final_file = None
samtools = config_utils.get_program("samtools", data["config"])
novoalign = config_utils.get_program("novoalign", data["config"])
resources = config_utils.get_resources("novoalign", data["config"])
num_cores = data["config"]["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "1G")
extra_novo_args = " ".join(_novoalign_args_from_config(data["config"]))
rg_info = get_rg_info(names)
if not utils.file_exists(out_file) and (final_file is None or not utils.file_exists(final_file)):
with utils.curdir_tmpdir(data) as work_dir:
with postalign.tobam_cl(data, out_file, pair_file != "") as (tobam_cl, tx_out_file):
tx_out_prefix = os.path.splitext(tx_out_file)[0]
cmd = ("{novoalign} -o SAM '{rg_info}' -d {ref_file} -f {fastq_file} {pair_file} "
" -c {num_cores} {extra_novo_args} | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "Novoalign: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, fastq_file)])
data["work_bam"] = out_file
return data
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform realignment of input BAM file, handling sorting of input/output with novosort.
Uses unix pipes for avoid IO writing between steps:
- novosort of input BAM to coordinates
- alignment with novoalign
- conversion to BAM with samtools
- coordinate sorting with novosort
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
novosort = config_utils.get_program("novosort", config)
novoalign = config_utils.get_program("novoalign", config)
samtools = config_utils.get_program("samtools", config)
resources = config_utils.get_resources("novoalign", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "4G")
if not file_exists(out_file):
with curdir_tmpdir(base_dir=align_dir) as work_dir:
with file_transaction(out_file) as tx_out_file:
rg_info = r"@RG\tID:{rg}\tPL:{pl}\tPU:{pu}\tSM:{sample}".format(**names)
cmd = ("{novosort} -c {num_cores} -m {max_mem} --compression 0 "
" -n -t {work_dir} {in_bam} "
"| {novoalign} -o SAM '{rg_info}' -d {ref_file} -f /dev/stdin "
" -F BAMPE -c {num_cores} "
"| {samtools} view -b -S -u - "
"| {novosort} -c {num_cores} -m {max_mem} -t {work_dir} "
" -o {tx_out_file} /dev/stdin")
subprocess.check_call(cmd.format(**locals()), shell=True)
return out_file
def _run_kraken(data,ratio):
"""Run kraken, generating report in specified directory and parsing metrics.
Using only first paired reads.
"""
logger.info("Number of aligned reads < than 0.60 in %s: %s" % (str(data["name"]),ratio))
logger.info("Running kraken to determine contaminant: %s" % str(data["name"]))
qc_dir = utils.safe_makedir(os.path.join(data["dirs"]["work"], "qc", data["description"]))
kraken_out = os.path.join(qc_dir, "kraken")
stats = out = out_stats = None
db = data['config']["algorithm"]["kraken"]
if db == "minikraken":
db = os.path.join(_get_data_dir(),"genome","kraken","minikraken")
else:
if not os.path.exists(db):
logger.info("kraken: no database found %s, skipping" % db)
return {"kraken_report" : "null"}
if not os.path.exists(os.path.join(kraken_out,"kraken_out")):
work_dir = os.path.dirname(kraken_out)
utils.safe_makedir(work_dir)
num_cores = data["config"]["algorithm"].get("num_cores", 1)
files = data["files"]
with utils.curdir_tmpdir(data, work_dir) as tx_tmp_dir:
with utils.chdir(tx_tmp_dir):
out = os.path.join(tx_tmp_dir,"kraken_out")
out_stats = os.path.join(tx_tmp_dir,"kraken_stats")
cl = (" ").join([config_utils.get_program("kraken", data["config"]),
"--db",db,"--quick",
"--preload","--min-hits","2","--threads",str(num_cores),
"--out", out, files[0]," 2>",out_stats])
do.run(cl,"kraken: %s" % data["name"][-1])
if os.path.exists(kraken_out):
shutil.rmtree(kraken_out)
shutil.move(tx_tmp_dir, kraken_out)
metrics = _parse_kraken_output(kraken_out,db,data)
return metrics
def _run_fastqc(bam_file, data, fastqc_out):
"""Run fastqc, generating report in specified directory and parsing metrics.
Downsamples to 10 million reads to avoid excessive processing times with large
files, unless we're running a Standard/QC pipeline.
"""
sentry_file = os.path.join(fastqc_out, "fastqc_report.html")
if not os.path.exists(sentry_file):
work_dir = os.path.dirname(fastqc_out)
utils.safe_makedir(work_dir)
ds_bam = (bam.downsample(bam_file, data, 1e7)
if data.get("analysis", "").lower() not in ["standard"]
else None)
bam_file = ds_bam if ds_bam else bam_file
num_cores = data["config"]["algorithm"].get("num_cores", 1)
with utils.curdir_tmpdir(data, work_dir) as tx_tmp_dir:
with utils.chdir(tx_tmp_dir):
cl = [config_utils.get_program("fastqc", data["config"]),
"-t", str(num_cores), "-o", tx_tmp_dir, "-f", "bam", bam_file]
do.run(cl, "FastQC: %s" % data["name"][-1])
fastqc_outdir = os.path.join(tx_tmp_dir,
"%s_fastqc" % os.path.splitext(os.path.basename(bam_file))[0])
if os.path.exists("%s.zip" % fastqc_outdir):
os.remove("%s.zip" % fastqc_outdir)
if not os.path.exists(sentry_file):
if os.path.exists(fastqc_out):
shutil.rmtree(fastqc_out)
shutil.move(fastqc_outdir, fastqc_out)
if ds_bam and os.path.exists(ds_bam):
os.remove(ds_bam)
parser = FastQCParser(fastqc_out)
stats = parser.get_fastqc_summary()
return stats
def _extract_split_and_discordants(in_bam, work_dir, data):
"""Retrieve split-read alignments from input BAM file.
"""
dedup_file = os.path.join(work_dir, "%s-dedup.bam" % os.path.splitext(os.path.basename(in_bam))[0])
sr_file = os.path.join(work_dir, "%s-sr.bam" % os.path.splitext(os.path.basename(in_bam))[0])
disc_file = os.path.join(work_dir, "%s-disc.bam" % os.path.splitext(os.path.basename(in_bam))[0])
samtools = config_utils.get_program("samtools", data["config"])
cores = utils.get_in(data, ("config", "algorithm", "num_cores"), 1)
resources = config_utils.get_resources("sambamba", data["config"])
mem = config_utils.adjust_memory(resources.get("memory", "2G"),
3, "decrease")
if not utils.file_exists(sr_file) or not utils.file_exists(disc_file) or utils.file_exists(dedup_file):
with utils.curdir_tmpdir() as tmpdir:
with file_transaction(sr_file) as tx_sr_file:
with file_transaction(disc_file) as tx_disc_file:
with file_transaction(dedup_file) as tx_dedup_file:
samblaster_cl = postalign.samblaster_dedup_sort(data, tmpdir, tx_dedup_file,
tx_sr_file, tx_disc_file)
out_base = os.path.join(tmpdir, "%s-namesort" % os.path.splitext(in_bam)[0])
cmd = ("{samtools} sort -n -o -@ {cores} -m {mem} {in_bam} {out_base} | "
"{samtools} view -h - | ")
cmd = cmd.format(**locals()) + samblaster_cl
do.run(cmd, "samblaster: split and discordant reads", data)
for fname in [sr_file, disc_file, dedup_file]:
bam.index(fname, data["config"])
return dedup_file, sr_file, disc_file
def align(fastq_file, pair_file, index_dir, names, align_dir, data):
"""Perform piped alignment of fastq input files, generating sorted, deduplicated BAM.
TODO: Use streaming with new development version of SNAP to feed into
structural variation preparation de-duplication.
"""
pair_file = pair_file if pair_file else ""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
assert not data.get(
"align_split"), "Split alignments not supported with SNAP"
snap = config_utils.get_program("snap", data["config"])
num_cores = data["config"]["algorithm"].get("num_cores", 1)
resources = config_utils.get_resources("snap", data["config"])
max_mem = resources.get("memory", "1G")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
with file_transaction(out_file) as tx_out_file:
with utils.curdir_tmpdir(data) as work_dir:
if fastq_file.endswith(".bam"):
cmd_name = "paired" if bam.is_paired(
fastq_file) else "single"
else:
cmd_name = "single" if not pair_file else "paired"
cmd = (
"{snap} {cmd_name} {index_dir} {fastq_file} {pair_file} "
"-rg '{rg_info}' -t {num_cores} -sa -so -sm {max_mem} -o {tx_out_file}"
)
do.run(cmd.format(**locals()),
"SNAP alignment: %s" % names["sample"])
data["work_bam"] = out_file
return data
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform direct alignment of an input BAM file with BWA using pipes.
This avoids disk IO by piping between processes:
- samtools sort of input BAM to queryname
- bedtools conversion to interleaved FASTQ
- bwa-mem alignment
- samtools conversion to BAM
- samtools sort to coordinate
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
bedtools = config_utils.get_program("bedtools", config)
bwa = config_utils.get_program("bwa", config)
resources = config_utils.get_resources("samtools", config)
num_cores = config["algorithm"].get("num_cores", 1)
# adjust memory for samtools since used for input and output
max_mem = config_utils.adjust_memory(resources.get("memory", "1G"),
3, "decrease")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
novoalign.check_samtools_version(config)
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = ("{samtools} sort -n -o -l 0 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {bedtools} bamtofastq -i /dev/stdin -fq /dev/stdout -fq2 /dev/stdout "
"| {bwa} mem -p -M -t {num_cores} -R '{rg_info}' -v 1 {ref_file} - "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}")
cmd = cmd.format(**locals())
do.run(cmd, "bwa mem alignment from BAM: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def align_bam(in_bam, ref_file, names, align_dir, config):
"""Perform direct alignment of an input BAM file with BWA using pipes.
This avoids disk IO by piping between processes:
- samtools sort of input BAM to queryname
- bedtools conversion to interleaved FASTQ
- bwa-mem alignment
- samtools conversion to BAM
- samtools sort to coordinate
"""
out_file = os.path.join(align_dir, "{0}-sort.bam".format(names["lane"]))
samtools = config_utils.get_program("samtools", config)
bedtools = config_utils.get_program("bedtools", config)
bwa = config_utils.get_program("bwa", config)
resources = config_utils.get_resources("samtools", config)
num_cores = config["algorithm"].get("num_cores", 1)
max_mem = resources.get("memory", "768M")
rg_info = novoalign.get_rg_info(names)
if not utils.file_exists(out_file):
_check_samtools_version()
with utils.curdir_tmpdir() as work_dir:
with file_transaction(out_file) as tx_out_file:
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = ("{samtools} sort -n -o -l 0 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {bedtools} bamtofastq -i /dev/stdin -fq /dev/stdout -fq2 /dev/stdout "
"| {bwa} mem -p -M -t {num_cores} -R '{rg_info}' -v 1 {ref_file} - "
"| {samtools} view -b -S -u - "
"| {samtools} sort -@ {num_cores} -m {max_mem} - {tx_out_prefix}")
cmd = cmd.format(**locals())
do.run(cmd, "bwa mem alignment from BAM: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file)])
return out_file
def gatk_recalibrate(picard, dup_align_bam, ref_file, recal_file, platform):
"""Step 2 of GATK recalibration -- use covariates to re-write output file.
"""
out_file = "%s-gatkrecal.bam" % os.path.splitext(dup_align_bam)[0]
params = [
"-T",
"TableRecalibration",
"-recalFile",
recal_file,
"-R",
ref_file,
"-I",
dup_align_bam,
"--out",
out_file,
"-baq",
"RECALCULATE",
"-l",
"INFO",
"-U",
"-OQ",
"--default_platform",
platform,
]
if not os.path.exists(out_file):
if _recal_available(recal_file):
with curdir_tmpdir() as tmp_dir:
picard.run_gatk(params, tmp_dir)
else:
shutil.copy(dup_align_bam, out_file)
return out_file
def gatk_indel_realignment(runner, align_bam, ref_file, intervals, deep_coverage=False):
"""Perform realignment of BAM file in specified regions
"""
out_file = "%s-realign.bam" % os.path.splitext(align_bam)[0]
params = [
"-T",
"IndelRealigner",
"-I",
align_bam,
"-R",
ref_file,
"-targetIntervals",
intervals,
"-o",
out_file,
"-l",
"INFO",
]
if deep_coverage:
params += [
"--maxReadsInMemory",
"300000",
"--maxReadsForRealignment",
str(int(5e5)),
"--maxReadsForConsensuses",
"500",
"--maxConsensuses",
"100",
]
if not (os.path.exists(out_file) and os.path.getsize(out_file) > 0):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file):
runner.run_gatk(params, tmp_dir)
return out_file
def run_mutect(self, params, tmp_dir=None):
with curdir_tmpdir() as local_tmp_dir:
if tmp_dir is None:
tmp_dir = local_tmp_dir
cl = self.cl_mutect(params, tmp_dir)
prog = "MuTect"
do.run(cl, "MuTect: {0}".format(prog), None)
def generate_align_summary(bam_file, is_paired, sam_ref, sample_name, config, dirs):
"""Run alignment summarizing script to produce a pdf with align details.
"""
with utils.chdir(dirs["work"]):
with utils.curdir_tmpdir() as tmp_dir:
graphs, summary, overrep = _graphs_and_summary(bam_file, sam_ref, is_paired, tmp_dir, config)
return _generate_pdf(graphs, summary, overrep, bam_file, sample_name, dirs, config)
def _gatk_base_recalibrator(broad_runner, dup_align_bam, ref_file, platform,
snp_file, intervals):
"""Step 1 of GATK recalibration process, producing table of covariates.
"""
out_file = "%s.grp" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if has_aligned_reads(dup_align_bam):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = ["-T", "BaseRecalibrator",
"-o", tx_out_file,
"-I", dup_align_bam,
"-R", ref_file,
]
# GATK-lite does not have support for
# insertion/deletion quality modeling
if not broad_runner.has_gatk_full():
params += ["--disable_indel_quals"]
if snp_file:
params += ["--knownSites", snp_file]
if intervals:
params += ["-L", intervals, "--interval_set_rule", "INTERSECTION"]
broad_runner.run_gatk(params, tmp_dir)
else:
with open(out_file, "w") as out_handle:
out_handle.write("# No aligned reads")
return out_file
def picard_fastq_to_bam(picard, fastq_one, fastq_two, out_dir,
platform, sample_name="", rg_name="", pu_name="",
qual_format=None):
"""Convert fastq file(s) to BAM, adding sample, run group and platform information.
"""
qual_formats = {"illumina": "Illumina"}
if qual_format is None:
try:
qual_format = qual_formats[platform.lower()]
except KeyError:
raise ValueError("Need to specify quality format for %s" % platform)
out_bam = os.path.join(out_dir, "%s-fastq.bam" %
os.path.splitext(os.path.basename(fastq_one))[0])
if not file_exists(out_bam):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_bam) as tx_out_bam:
opts = [("FASTQ", fastq_one),
("QUALITY_FORMAT", qual_format),
("READ_GROUP_NAME", rg_name),
("SAMPLE_NAME", sample_name),
("PLATFORM_UNIT", pu_name),
("PLATFORM", platform),
("TMP_DIR", tmp_dir),
("OUTPUT", tx_out_bam)]
if fastq_two:
opts.append(("FASTQ2", fastq_two))
picard.run("FastqToSam", opts)
return out_bam
def _gatk_base_recalibrator(broad_runner, dup_align_bam, ref_file, platform,
snp_file, intervals):
"""Step 1 of GATK recalibration process, producing table of covariates.
"""
out_file = "%s.grp" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if has_aligned_reads(dup_align_bam):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = [
"-T",
"BaseRecalibrator",
"-o",
tx_out_file,
"-I",
dup_align_bam,
"-R",
ref_file,
]
# GATK-lite does not have support for
# insertion/deletion quality modeling
if not broad_runner.has_gatk_full():
params += ["--disable_indel_quals"]
if snp_file:
params += ["--knownSites", snp_file]
if intervals:
params += [
"-L", intervals, "--interval_set_rule",
"INTERSECTION"
]
broad_runner.run_gatk(params, tmp_dir)
else:
with open(out_file, "w") as out_handle:
out_handle.write("# No aligned reads")
return out_file
def _gatk_base_recalibrator(broad_runner, dup_align_bam, ref_file, platform,
dbsnp_file, intervals):
"""Step 1 of GATK recalibration process, producing table of covariates.
Large whole genome BAM files take an excessively long time to recalibrate and
the extra inputs don't help much beyond a certain point. See the 'Downsampling analysis'
plots in the GATK documentation:
http://gatkforums.broadinstitute.org/discussion/44/base-quality-score-recalibrator#latest
This identifies large files and calculates the fraction to downsample to.
TODO: Use new GATK 2.6+ AnalyzeCovariates tool to plot recalibration results.
"""
target_counts = 1e8 # 100 million reads per read group, 20x the plotted max
out_file = "%s.grp" % os.path.splitext(dup_align_bam)[0]
if not file_exists(out_file):
if has_aligned_reads(dup_align_bam, intervals):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
params = [
"-T",
"BaseRecalibrator",
"-o",
tx_out_file,
"-I",
dup_align_bam,
"-R",
ref_file,
]
downsample_pct = bam.get_downsample_pct(
broad_runner, dup_align_bam, target_counts)
if downsample_pct:
params += [
"--downsample_to_fraction",
str(downsample_pct), "--downsampling_type",
"ALL_READS"
]
if platform.lower() == "solid":
params += [
"--solid_nocall_strategy", "PURGE_READ",
"--solid_recal_mode", "SET_Q_ZERO_BASE_N"
]
# GATK-lite does not have support for
# insertion/deletion quality modeling
if broad_runner.gatk_type() == "lite":
params += ["--disable_indel_quals"]
if dbsnp_file:
params += ["--knownSites", dbsnp_file]
if intervals:
params += [
"-L", intervals, "--interval_set_rule",
"INTERSECTION"
]
broad_runner.run_gatk(params, tmp_dir)
else:
with open(out_file, "w") as out_handle:
out_handle.write("# No aligned reads")
return out_file
def main(config_file):
task_module = "bcbio.distributed.tasks"
with open(config_file) as in_handle:
config = yaml.load(in_handle)
with utils.curdir_tmpdir() as work_dir:
dirs = {"work": work_dir, "config": os.path.dirname(config_file)}
with create_celeryconfig(task_module, dirs, config):
run_celeryd(work_dir)
def picard_sort(picard, align_bam):
base, ext = os.path.splitext(align_bam)
out_file = "%s-sort%s" % (base, ext)
if not os.path.exists(out_file):
with curdir_tmpdir() as tmp_dir:
opts = [("INPUT", align_bam), ("OUTPUT", out_file),
("TMP_DIR", tmp_dir), ("SORT_ORDER", "coordinate")]
picard.run("SortSam", opts)
return out_file
def split_bam_file(bam_file, split_size, out_dir, config):
"""Split a BAM file into paired end fastq splits based on split size.
XXX Need to generalize for non-paired end inputs.
"""
existing = _find_current_bam_split(bam_file, out_dir)
if len(existing) > 0:
return existing
pipe = True
utils.safe_makedir(out_dir)
broad_runner = broad.runner_from_config(config)
out_files = []
def new_handle(num):
out = []
for pair in [1, 2]:
fname = os.path.join(out_dir, "{base}_{pair}_{num}.fastq".format(
base=os.path.splitext(os.path.basename(bam_file))[0], pair=pair, num=num))
out += [fname, open(fname, "w")]
return out
with utils.curdir_tmpdir(base_dir=config_utils.get_resources("tmp", config).get("dir")) as tmp_dir:
if pipe:
sort_file = os.path.join(tmp_dir, "%s-sort.bam" %
os.path.splitext(os.path.basename(bam_file))[0])
os.mkfifo(sort_file)
broad_runner.run_fn("picard_sort", bam_file, "queryname", sort_file,
compression_level=0, pipe=True)
else:
sort_file = os.path.join(out_dir, "%s-sort.bam" %
os.path.splitext(os.path.basename(bam_file))[0])
broad_runner.run_fn("picard_sort", bam_file, "queryname", sort_file)
samfile = pysam.Samfile(sort_file, "rb")
i = 0
num = 0
f1, out_handle1, f2, out_handle2 = new_handle(num)
out_files.append([f1, f2, None])
for x1, x2 in utils.partition_all(2, samfile):
x1_seq, x1_qual = _get_seq_qual(x1)
out_handle1.write("@%s/1\n%s\n+\n%s\n" % (i, x1_seq, x1_qual))
x2_seq, x2_qual = _get_seq_qual(x2)
out_handle2.write("@%s/2\n%s\n+\n%s\n" % (i, x2_seq, x2_qual))
i += 1
if i % split_size == 0:
num += 1
out_handle1.close()
out_handle2.close()
f1, out_handle1, f2, out_handle2 = new_handle(num)
out_files.append([f1, f2, num])
out_handle1.close()
out_handle2.close()
samfile.close()
if pipe:
os.unlink(sort_file)
else:
utils.save_diskspace(sort_file, "Split to {}".format(out_files[0][0]), config)
return out_files
def run_gatk(self, params, tmp_dir=None):
with curdir_tmpdir() as local_tmp_dir:
if tmp_dir is None:
tmp_dir = local_tmp_dir
cl = self.cl_gatk(params, tmp_dir)
atype_index = cl.index("-T") if cl.count("-T") > 0 \
else cl.index("--analysis_type")
prog = cl[atype_index + 1]
do.run(cl, "GATK: {0}".format(prog), None)
def bedtools_tmpdir(data):
with utils.curdir_tmpdir(data) as tmpdir:
orig_tmpdir = tempfile.gettempdir()
pybedtools.set_tempdir(tmpdir)
yield
if orig_tmpdir and os.path.exists(orig_tmpdir):
pybedtools.set_tempdir(orig_tmpdir)
else:
tempfile.tempdir = None
def generate_align_summary(bam_file, sam_ref, sample_name,
config, dirs):
"""Run alignment summarizing script to produce a pdf with align details.
"""
with utils.chdir(dirs["work"]):
with utils.curdir_tmpdir() as tmp_dir:
graphs, summary, overrep = \
_graphs_and_summary(bam_file, sam_ref, tmp_dir, config)
return {"pdf": _generate_pdf(graphs, summary, overrep, bam_file, sample_name,
dirs, config)}
def picard_formatconverter(picard, align_sam):
"""Convert aligned SAM file to BAM format.
"""
out_bam = "%s.bam" % os.path.splitext(align_sam)[0]
if not file_exists(out_bam):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_bam) as tx_out_bam:
opts = [("INPUT", align_sam), ("OUTPUT", tx_out_bam)]
picard.run("SamFormatConverter", opts)
return out_bam
def picard_downsample(picard, in_bam, ds_pct, random_seed=None):
out_file = "%s-downsample%s" % os.path.splitext(in_bam)
if not file_exists(out_file):
with curdir_tmpdir() as tmp_dir:
with file_transaction(out_file) as tx_out_file:
opts = [("INPUT", in_bam), ("OUTPUT", tx_out_file),
("PROBABILITY", "%.3f" % ds_pct), ("TMP_DIR", tmp_dir)]
if random_seed:
opts += [("RANDOM_SEED", str(random_seed))]
picard.run("DownsampleSam", opts)
return out_file
def mark_duplicates(picard, align_bam):
base, ext = os.path.splitext(align_bam)
base = base.replace(".", "-")
dup_bam = "%s-dup%s" % (base, ext)
dup_metrics = "%s-dup.dup_metrics" % base
if not os.path.exists(dup_bam):
with curdir_tmpdir() as tmp_dir:
opts = [("INPUT", align_bam), ("OUTPUT", dup_bam),
("TMP_DIR", tmp_dir), ("METRICS_FILE", dup_metrics)]
picard.run("MarkDuplicates", opts)
return dup_bam
