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, 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 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 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 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 tx_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 1 -@ {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 + tobam_cl).format(**locals())
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 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 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 tx_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 + tobam_cl).format(**locals())
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_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 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 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 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 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 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)
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").upper()
if not utils.file_exists(out_file):
with tx_tmpdir(data) as work_dir:
with postalign.tobam_cl(data, out_file, bam.is_paired(in_bam)) as (tobam_cl, tx_out_file):
bwa_cmd = _get_bwa_mem_cmd(data, out_file, ref_file, "-")
tx_out_prefix = os.path.splitext(tx_out_file)[0]
prefix1 = "%s-in1" % tx_out_prefix
cmd = ("{samtools} sort -n -o -l 1 -@ {num_cores} -m {max_mem} {in_bam} {prefix1} "
"| {bedtools} bamtofastq -i /dev/stdin -fq /dev/stdout -fq2 /dev/stdout "
"| {bwa_cmd} | ")
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 _align_mem(fastq_file, pair_file, ref_file, out_file, names, rg_info, data):
"""Perform bwa-mem alignment on supported read lengths.
"""
with postalign.tobam_cl(data, out_file, pair_file != "") as (tobam_cl, tx_out_file):
cmd = "%s | %s" % (_get_bwa_mem_cmd(data, out_file, ref_file, fastq_file, pair_file), tobam_cl)
do.run(cmd, "bwa mem alignment from fastq: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, fastq_file)])
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"]))
qual_format = data["config"]["algorithm"].get("quality_format", "").lower()
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
if qual_format == "illumina":
fastq_file = alignprep.fastq_convert_pipe_cl(fastq_file, data)
if pair_file:
pair_file = alignprep.fastq_convert_pipe_cl(pair_file, data)
samtools = config_utils.get_program("samtools", data["config"])
bwa = config_utils.get_program("bwa", data["config"])
resources = config_utils.get_resources("samtools", data["config"])
num_cores = data["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) and (final_file is None or
not utils.file_exists(final_file)):
# If we cannot do piping, use older bwa aln approach
if not can_pipe(fastq_file, data):
return align(fastq_file, pair_file, ref_file, names, align_dir,
data)
else:
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),
do.file_reasonable_size(tx_out_file, fastq_file)
])
data["work_bam"] = out_file
return data
def _align_mem(fastq_file, pair_file, ref_file, out_file, names, rg_info, data):
"""Perform bwa-mem alignment on supported read lengths.
"""
bwa = config_utils.get_program("bwa", data["config"])
num_cores = data["config"]["algorithm"].get("num_cores", 1)
with utils.curdir_tmpdir() as work_dir:
with postalign.tobam_cl(data, out_file, pair_file != "") as (tobam_cl, tx_out_file):
cmd = ("{bwa} mem -M -t {num_cores} -R '{rg_info}' -v 1 {ref_file} "
"{fastq_file} {pair_file} | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "bwa mem alignment from fastq: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, fastq_file)])
return out_file
def _align_mem(fastq_file, pair_file, ref_file, out_file, names, rg_info, data):
"""Perform bwa-mem alignment on supported read lengths.
"""
bwa = config_utils.get_program("bwa", data["config"])
num_cores = data["config"]["algorithm"].get("num_cores", 1)
bwa_resources = config_utils.get_resources("bwa", data["config"])
bwa_params = (" ".join([str(x) for x in bwa_resources.get("options", [])])
if "options" in bwa_resources else "")
with tx_tmpdir(data) as work_dir:
with postalign.tobam_cl(data, out_file, pair_file != "") as (tobam_cl, tx_out_file):
cmd = ("{bwa} mem -M -t {num_cores} {bwa_params} -R '{rg_info}' -v 1 {ref_file} "
"{fastq_file} {pair_file} | ")
cmd = cmd.format(**locals()) + tobam_cl
do.run(cmd, "bwa mem alignment from fastq: %s" % names["sample"], None,
[do.file_nonempty(tx_out_file), do.file_reasonable_size(tx_out_file, fastq_file)])
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"]))
qual_format = data["config"]["algorithm"].get("quality_format", "").lower()
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
if qual_format == "illumina":
fastq_file = alignprep.fastq_convert_pipe_cl(fastq_file, data)
if pair_file:
pair_file = alignprep.fastq_convert_pipe_cl(pair_file, data)
samtools = config_utils.get_program("samtools", data["config"])
bwa = config_utils.get_program("bwa", data["config"])
resources = config_utils.get_resources("samtools", data["config"])
num_cores = data["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) and (final_file is None or not utils.file_exists(final_file)):
# If we cannot do piping, use older bwa aln approach
if not can_pipe(fastq_file, data):
return align(fastq_file, pair_file, ref_file, names, align_dir, data)
else:
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), do.file_reasonable_size(tx_out_file, fastq_file)])
data["work_bam"] = out_file
return data
