def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "reference":
file_type = "compare_reference"
else:
file_type = "validate_target"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fasta_path = os.path.join(args_snp.fastas, "tmp")
self.outputs = {"table": os.path.join(
args_snp.out_folder, file_type, "SNP_table"),
"raw": os.path.join(
args_snp.out_folder, file_type, "SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf"),
"depth": os.path.join(args_snp.out_folder, "tmp_depth")}
if "whole_reads.bam" in os.listdir(args_snp.out_folder):
self.helper.remove_all_content(args_snp.out_folder,
"whole_read", "file")
self.bams = {"whole": os.path.join(args_snp.out_folder,
"whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam"),
"bams": []}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {"with": "with_BAQ", "without": "without_BAQ",
"extend": "extend_BAQ"}
def __init__(self):
self.seq_editer = SeqEditer()
self.helper = Helper()
self.tmp_fa = "tmp.fa"
self.tmp_gff = "tmp.gff"
self.tmp_wig_forward = "tmp_forward.wig"
self.tmp_wig_reverse = "tmp_reverse.wig"
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "related_genome":
file_type = "compare_related_and_reference_genomes"
else:
file_type = "mutations_of_reference_genomes"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fig_path = os.path.join(self.stat_path, "figs")
self.helper.check_make_folder(self.fig_path)
self.outputs = {
"table": os.path.join(args_snp.out_folder, file_type,
"SNP_tables"),
"raw": os.path.join(args_snp.out_folder, file_type,
"SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf"),
"depth": os.path.join(args_snp.out_folder, "tmp_depth")
}
self.bams = {
"whole": os.path.join(args_snp.out_folder, "whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam"),
"bams": []
}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {
"with": "with_BAQ",
"without": "without_BAQ",
"extend": "extend_BAQ"
}
class TestSeqEditer(unittest.TestCase):
def setUp(self):
self.example = Example()
self.test_folder = "test_folder"
self.fasta = os.path.join(self.test_folder, "fasta")
if (not os.path.exists(self.test_folder)):
os.mkdir(self.test_folder)
os.mkdir(self.fasta)
self.seq = SeqEditer()
def tearDown(self):
if os.path.exists(self.test_folder):
shutil.rmtree(self.test_folder)
def test_import_data(self):
mod_table = os.path.join(self.test_folder, "mod")
gen_file(mod_table, self.example.mutation)
datas = self.seq._import_data(mod_table)
self.assertListEqual(
datas, [{
'ref_id':
'NC_000915.1',
'datas': [{
'tar_nt': 'c',
'ref_nt': 'a',
'position': '3'
}, {
'tar_nt': '-',
'ref_nt': 'a',
'position': '6'
}],
'target_id':
'NC_test.1'
}, {
'ref_id': 'NC_000915.1',
'datas': [{
'tar_nt': 'g',
'ref_nt': '-',
'position': '6'
}],
'target_id': 'test_case2'
}])
def test_modify_seq(self):
mod_table = os.path.join(self.test_folder, "mod")
gen_file(mod_table, self.example.mutation)
gen_file(os.path.join(self.fasta, "NC_000915.1.fa"),
self.example.fasta)
self.seq.modify_seq(self.fasta, mod_table, self.test_folder)
datas = import_data(os.path.join(self.test_folder, "NC_test.1.fa"))
self.assertEqual("\n".join(datas), self.example.out_1)
datas = import_data(os.path.join(self.test_folder, "test_case2.fa"))
self.assertEqual("\n".join(datas), self.example.out_2)
def test_modify_header(self):
input_file = os.path.join(self.test_folder, "test.fa")
gen_file(input_file, ">AAA|BBB|CCC|DDD|EEE\nACATACAAGTACAGTT")
self.seq.modify_header(input_file)
datas = import_data(input_file)
self.assertEqual("\n".join(datas), ">DDD\nACATACAAGTACAGTT")
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {
"tmp_tar": os.path.join(tar_folder, "tmp"),
"tmp_ref": os.path.join(ref_folder, "tmp")
}
def setUp(self):
self.example = Example()
self.test_folder = "test_folder"
self.fasta = os.path.join(self.test_folder, "fasta")
if (not os.path.exists(self.test_folder)):
os.mkdir(self.test_folder)
os.mkdir(self.fasta)
self.seq = SeqEditer()
class TargetFasta(object):
'''detection of sRNA target interaction'''
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {"tmp_tar": os.path.join(tar_folder, "tmp")}
def gen_folder(self, out_folder, ref_files):
new_ref_folder = os.path.join(out_folder, "tmp_reference")
self.helper.check_make_folder(new_ref_folder)
for file_ in ref_files:
shutil.copy(file_, new_ref_folder)
self.folders["tmp_ref"] = os.path.join(new_ref_folder, "tmp")
self.multiparser.parser_fasta(new_ref_folder)
if "tmp_tar" in os.listdir(out_folder):
shutil.rmtree(self.folders["tmp_tar"])
os.mkdir(self.folders["tmp_tar"])
return new_ref_folder
def get_target_fasta(self, mut_table, tar_folder, ref_files, output,
out_folder):
new_ref_folder = self.gen_folder(out_folder, ref_files)
self.seq_editer.modify_seq(self.folders["tmp_ref"], mut_table,
self.folders["tmp_tar"])
print("Transfering to target fasta")
for file_ in output:
first = True
datas = file_.split(":")
filename = datas[0]
strains = datas[1].split(",")
out = open(filename, "w")
for strain in strains:
if strain + ".fa" in os.listdir(self.folders["tmp_tar"]):
if first:
first = False
else:
out.write("\n")
with open(
os.path.join(self.folders["tmp_tar"],
strain + ".fa")) as f_h:
for line in f_h:
out.write(line)
else:
print(
"Error: No fasta information of {0}.fa".format(strain))
out.close()
shutil.rmtree(self.folders["tmp_tar"])
shutil.rmtree(self.folders["tmp_ref"])
if "tmp_reference" in os.listdir(out_folder):
shutil.rmtree(new_ref_folder)
print("Please use the new fasta file to remapping again.")
class TargetFasta(object):
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {
"tmp_tar": os.path.join(tar_folder, "tmp"),
"tmp_ref": os.path.join(ref_folder, "tmp")
}
def get_target_fasta(self, mut_table, tar_folder, ref_folder, output):
self.multiparser.parser_fasta(ref_folder)
if "tmp" in os.listdir(tar_folder):
shutil.rmtree(self.folders["tmp_tar"])
os.mkdir(self.folders["tmp_tar"])
self.seq_editer.modify_seq(self.folders["tmp_ref"], mut_table,
self.folders["tmp_tar"])
print("transfer to target fasta...")
if output is not None:
for file_ in output:
first = True
datas = file_.split(":")
filename = datas[0]
strains = datas[1].split("_and_")
out = open(os.path.join(tar_folder, filename + ".fa"), "w")
for strain in strains:
if strain + ".fa" in os.listdir(self.folders["tmp_tar"]):
if first:
first = False
else:
out.write("\n")
with open(
os.path.join(self.folders["tmp_tar"],
strain + ".fa")) as f_h:
for line in f_h:
out.write(line)
else:
print("Error:no fasta information of {0}.fa".format(
strain))
out.close()
else:
self.helper.move_all_content(self.folders["tmp_tar"], tar_folder,
[".fa"])
shutil.rmtree(self.folders["tmp_tar"])
shutil.rmtree(self.folders["tmp_ref"])
self.helper.remove_all_content(ref_folder, "_folder", "dir")
print("please use the new fasta file to remapping again.")
print("Then copy BAMs and wigs back to input/align_results/BAMs "
"and input/align_results/wigs")
class TargetFasta(object):
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {"tmp_tar": os.path.join(tar_folder, "tmp"),
"tmp_ref": os.path.join(ref_folder, "tmp")}
def get_target_fasta(self, mut_table, tar_folder, ref_folder, output):
self.multiparser.parser_fasta(ref_folder)
if "tmp" in os.listdir(tar_folder):
shutil.rmtree(self.folders["tmp_tar"])
os.mkdir(self.folders["tmp_tar"])
self.seq_editer.modify_seq(self.folders["tmp_ref"], mut_table,
self.folders["tmp_tar"])
print("transfer to target fasta...")
if output is not None:
for file_ in output:
first = True
datas = file_.split(":")
filename = datas[0]
strains = datas[1].split("_and_")
out = open(os.path.join(tar_folder, filename + ".fa"), "w")
for strain in strains:
if strain + ".fa" in os.listdir(self.folders["tmp_tar"]):
if first:
first = False
else:
out.write("\n")
with open(os.path.join(
self.folders["tmp_tar"],
strain + ".fa")) as f_h:
for line in f_h:
out.write(line)
else:
print("Error:no fasta information of {0}.fa".format(
strain))
out.close()
else:
self.helper.move_all_content(self.folders["tmp_tar"],
tar_folder, [".fa"])
shutil.rmtree(self.folders["tmp_tar"])
shutil.rmtree(self.folders["tmp_ref"])
self.helper.remove_all_content(ref_folder, "_folder", "dir")
print("please use the new fasta file to remapping again.")
print("Then copy BAMs and wigs back to input/align_results/BAMs "
"and input/align_results/wigs")
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "related_genome":
file_type = "compare_related_and_reference_genomes"
else:
file_type = "mutations_of_reference_genomes"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fig_path = os.path.join(self.stat_path, "figs")
self.helper.check_make_folder(self.fig_path)
self.outputs = {"table": os.path.join(
args_snp.out_folder, file_type, "SNP_tables"),
"raw": os.path.join(
args_snp.out_folder, file_type, "SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf"),
"depth": os.path.join(args_snp.out_folder, "tmp_depth")}
self.bams = {"whole": os.path.join(args_snp.out_folder,
"whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam"),
"bams": []}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {"with": "with_BAQ", "without": "without_BAQ",
"extend": "extend_BAQ"}
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "reference":
file_type = "compare_reference"
else:
file_type = "validate_target"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fasta_path = os.path.join(args_snp.fastas, "tmp")
self.outputs = {"table": os.path.join(
args_snp.out_folder, file_type, "SNP_table"),
"raw": os.path.join(
args_snp.out_folder, file_type, "SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf")}
if "whole_reads.bam" in os.listdir(args_snp.out_folder):
self.helper.remove_all_content(args_snp.out_folder,
"whole_read", "file")
self.bams = {"whole": os.path.join(args_snp.out_folder,
"whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam")}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {"with": "with_BAQ", "without": "without_BAQ",
"extend": "extend_BAQ"}
def __init__(self):
self.seq_editer = SeqEditer()
self.helper = Helper()
self.tmp_fa = "tmp.fa"
self.tmp_gff = "tmp.gff"
self.tmp_wig_forward = "tmp_forward.wig"
self.tmp_wig_reverse = "tmp_reverse.wig"
class TestSeqEditer(unittest.TestCase):
def setUp(self):
self.example = Example()
self.test_folder = "test_folder"
self.fasta = os.path.join(self.test_folder, "fasta")
if (not os.path.exists(self.test_folder)):
os.mkdir(self.test_folder)
os.mkdir(self.fasta)
self.seq = SeqEditer()
def tearDown(self):
if os.path.exists(self.test_folder):
shutil.rmtree(self.test_folder)
def test_import_data(self):
mod_table = os.path.join(self.test_folder, "mod")
gen_file(mod_table, self.example.mutation)
datas = self.seq._import_data(mod_table)
self.assertListEqual(datas, [{'ref_id': 'NC_000915.1', 'datas': [{'tar_nt': 'c', 'ref_nt': 'a', 'position': '3'},
{'tar_nt': '-', 'ref_nt': 'a', 'position': '6'}],
'target_id': 'NC_test.1'},
{'ref_id': 'NC_000915.1', 'datas': [{'tar_nt': 'g', 'ref_nt': '-', 'position': '6'}],
'target_id': 'test_case2'}])
def test_modify_seq(self):
mod_table = os.path.join(self.test_folder, "mod")
gen_file(mod_table, self.example.mutation)
gen_file(os.path.join(self.fasta, "NC_000915.1.fa"), self.example.fasta)
self.seq.modify_seq(self.fasta, mod_table, self.test_folder)
datas = import_data(os.path.join(self.test_folder, "NC_test.1.fa"))
self.assertEqual("\n".join(datas), self.example.out_1)
datas = import_data(os.path.join(self.test_folder, "test_case2.fa"))
self.assertEqual("\n".join(datas), self.example.out_2)
def test_modify_header(self):
input_file = os.path.join(self.test_folder, "test.fa")
gen_file(input_file, ">AAA|BBB|CCC|DDD|EEE\nACATACAAGTACAGTT")
self.seq.modify_header(input_file)
datas = import_data(input_file)
self.assertEqual("\n".join(datas), ">DDD\nACATACAAGTACAGTT")
def deal_detect(input_file, file_path, change, input_folder):
if change:
shutil.move(input_file, file_path)
change = False
SeqEditer().modify_header(file_path)
with open(os.path.join(file_path)) as fh:
for line in fh:
line = line.strip()
if line.startswith(">"):
seq_name = line[1:]
shutil.move(file_path, os.path.join(input_folder, seq_name + ".fa"))
return change, seq_name
def deal_detect(input_file, file_path, change, input_folder):
'''deal with the header of fasta file and
put the files to corresponding folders'''
if change:
shutil.move(input_file, file_path)
change = False
SeqEditer().modify_header(file_path)
with open(os.path.join(file_path)) as fh:
for line in fh:
line = line.strip()
if line.startswith(">"):
seq_name = line[1:]
shutil.move(file_path, os.path.join(input_folder, seq_name + ".fa"))
return change, seq_name
class SNPCalling(object):
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "reference":
file_type = "compare_reference"
else:
file_type = "validate_target"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fasta_path = os.path.join(args_snp.fastas, "tmp")
self.outputs = {"table": os.path.join(
args_snp.out_folder, file_type, "SNP_table"),
"raw": os.path.join(
args_snp.out_folder, file_type, "SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf")}
if "whole_reads.bam" in os.listdir(args_snp.out_folder):
self.helper.remove_all_content(args_snp.out_folder,
"whole_read", "file")
self.bams = {"whole": os.path.join(args_snp.out_folder,
"whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam")}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {"with": "with_BAQ", "without": "without_BAQ",
"extend": "extend_BAQ"}
def _import_bam(self, bam_folder, bams):
num_bam = 0
for bam in os.listdir(bam_folder):
if bam.endswith(".bam"):
num_bam += 1
bams.append(os.path.join(bam_folder, bam))
return num_bam
def _transcript_snp(self, fasta, snp, out_table_prefix, type_,
prefix, bam_number, table_path, args_snp):
seq_path = os.path.join(self.seq_path, self.baqs[type_], prefix)
stat_file = os.path.join(self.stat_path, "_".join([
"stat", "_".join([prefix, self.baqs[type_]]), "SNP.csv"]))
snp_detect(fasta, snp, out_table_prefix,
os.path.join(seq_path, prefix), bam_number,
stat_file, args_snp)
self.helper.move_all_content(table_path, self.stat_path, [".png"])
def _run_tools(self, fasta_file, out_bcf, out_raw_prefix, type_, args_snp):
if type_ == "with":
call([args_snp.samtools_path, "mpileup",
"-t", "DP", "-ugf", fasta_file, self.bams["sort"],
"--ignore-RG"], stdout=out_bcf)
elif type_ == "without":
call([args_snp.samtools_path, "mpileup",
"-t", "DP", "-B", "-ugf", fasta_file,
self.bams["sort"], "--ignore-RG"],
stdout=out_bcf)
elif type_ == "extend":
call([args_snp.samtools_path, "mpileup",
"-t", "DP", "-E", "-ugf", fasta_file,
self.bams["sort"], "--ignore-RG"], stdout=out_bcf)
out_vcf = "_".join([out_raw_prefix, self.baqs[type_] + ".vcf"])
if args_snp.chrom == "1":
call([args_snp.bcftools_path, "call", "--ploidy", args_snp.chrom,
self.outputs["tmp"], "-vmO", "v", "-o", out_vcf])
elif args_snp.chrom == "2":
call([args_snp.bcftools_path, "call",
self.outputs["tmp"], "-vmO", "v", "-o", out_vcf])
return out_vcf
def _run_sub(self, args_snp, fasta_file, type_, file_prefixs, prefix,
table_path, bam_number):
out_bcf = open(self.outputs["tmp"], "w")
out_vcf = self._run_tools(fasta_file, out_bcf,
file_prefixs["raw_prefix"], type_, args_snp)
self.helper.check_make_folder(
os.path.join(self.seq_path, self.baqs[type_], prefix))
self._transcript_snp(
fasta_file, out_vcf,
"_".join([file_prefixs["table_prefix"], self.baqs[type_]]),
type_, prefix, bam_number, table_path, args_snp)
out_bcf.close()
def _run_program(self, fasta_file, file_prefixs, prefix, bam_number,
table_path, args_snp):
for index in args_snp.program:
if index == "1":
type_ = "with"
print("Running SNP calling with BAQ...")
elif index == "2":
type_ = "without"
print("Running SNP calling without BAQ...")
elif index == "3":
print("Running SNP calling extend BAQ...")
type_ = "extend"
else:
print("Error: No correct program, please assign 1, 2, 3")
sys.exit()
self._run_sub(args_snp, fasta_file, type_, file_prefixs, prefix,
table_path, bam_number)
def _detect_fasta(self, fasta):
detect = False
if fasta.endswith(".fa"):
prefix = fasta[:-3]
detect = True
elif fasta.endswith(".fna"):
prefix = fasta[:-4]
detect = True
elif fasta.endswith(".fasta"):
prefix = fasta[:-6]
detect = True
return (detect, prefix)
def _run_bam(self, samtools_path, sub_command, bam_file):
if sub_command == "merge":
command = (" ".join([samtools_path, sub_command,
self.bams["whole"], bam_file]))
elif sub_command == "sort":
command = (" ".join([samtools_path, sub_command,
"-o", bam_file, self.bams["whole"]]))
os.system(command)
def _merge_bams(self, args_snp):
bams = []
num_normal = 0
num_frag = 0
if (args_snp.frag_bams is None) and (args_snp.normal_bams is None):
print("Error: There is no BAMs folders!!")
sys.exit()
else:
if args_snp.normal_bams is not None:
num_normal = self._import_bam(args_snp.normal_bams, bams)
if args_snp.frag_bams is not None:
num_frag = self._import_bam(args_snp.frag_bams, bams)
num_bam = num_normal + num_frag
if num_bam <= 1:
shutil.copyfile(bams[0], self.bams["whole"])
print("Sort BAM file now ...")
self._run_bam(args_snp.samtools_path, "sort",
self.bams["sort"])
else:
print("Merge BAM files now ...")
self._run_bam(args_snp.samtools_path, "merge", " ".join(bams))
print("Sort BAM file now ...")
self._run_bam(args_snp.samtools_path, "sort",
self.bams["sort"])
return num_bam
def _modify_header(self, fastas):
for fasta in os.listdir(fastas):
if fasta.endswith("fasta") or \
fasta.endswith("fa") or \
fasta.endswith("fna"):
self.seq_editer.modify_header(os.path.join(fastas, fasta))
def _get_header(self, samtools_path):
command = " ".join([samtools_path, "view", "-H", self.bams["sort"]])
os.system(">".join([command, self.header]))
def _get_genome_name(self, samtools_path):
self._get_header(samtools_path)
fh = open(self.header, "r")
seq_names = []
for row in csv.reader(fh, delimiter="\t"):
if row[0] == "@SQ":
seq_names.append(row[1].split(":")[1])
fh.close()
return seq_names
def run_snp_calling(self, args_snp):
self.multiparser.parser_fasta(args_snp.fastas)
self._modify_header(args_snp.fastas)
bam_number = self._merge_bams(args_snp)
seq_names = self._get_genome_name(args_snp.samtools_path)
if ("1" not in args_snp.program) and (
"2" not in args_snp.program) and (
"3" not in args_snp.program):
print("Error:Please assign a correct BAQ type: "
"'1' means 'with_BAQ', '2' means 'with_BAQ' or "
"'3' means 'extend_BAQ'.")
sys.exit()
else:
for fasta in os.listdir(self.fasta_path):
if (fasta.split(".f")[0] in seq_names):
fasta_datas = self._detect_fasta(fasta)
detect = fasta_datas[0]
prefix = fasta_datas[1]
if detect:
detect = False
print("Computing {0} now ...".format(fasta))
self.helper.check_make_folder(
os.path.join(self.outputs["table"], prefix))
self.helper.check_make_folder(
os.path.join(self.outputs["raw"], prefix))
file_prefixs = {"raw_prefix": os.path.join(
self.outputs["raw"], prefix, prefix),
"table_prefix": os.path.join(
self.outputs["table"], prefix, prefix)}
fasta_file = os.path.join(self.fasta_path, fasta)
table_path = os.path.join(self.outputs["table"],
prefix)
self._run_program(fasta_file, file_prefixs, prefix,
bam_number, table_path, args_snp)
os.remove(self.outputs["tmp"])
self.helper.remove_tmp(args_snp.fastas)
os.remove(self.bams["whole"])
os.remove(self.bams["sort"])
os.remove(self.header)
class Multiparser(object):
def __init__(self):
self.seq_editer = SeqEditer()
self.helper = Helper()
self.tmp_fa = "tmp.fa"
self.tmp_gff = "tmp.gff"
self.tmp_wig_forward = "tmp_forward.wig"
self.tmp_wig_reverse = "tmp_reverse.wig"
def combine_fasta(self, ref_folder, tar_folder, ref_feature):
tar_merge = os.path.join(tar_folder, "merge_tmp")
change = False
if ref_feature is None:
ref_feature = ""
else:
ref_feature = "_" + ref_feature
self.helper.check_make_folder(tar_merge)
for folder in os.listdir(ref_folder):
files = []
if "_folder" in folder:
datas = folder.split("_folder")
if ref_feature == "":
prefix = datas[0][:-4]
elif ref_feature == "_fasta":
if datas[0].endswith(".fa"):
prefix = datas[0][:-3]
elif datas[0].endswith(".fna"):
prefix = datas[0][:-4]
elif datas[0].endswith(".fasta"):
prefix = datas[0][:-6]
else:
datas = datas[0][:-4]
datas = datas.split(ref_feature)
prefix = datas[0]
print("Merging fasta file of " + prefix)
for file_ in os.listdir("/".join([ref_folder, folder])):
if ref_feature == "":
files.append(file_[:-4])
elif ref_feature == "_fasta":
files.append(file_[:-3])
else:
filename = file_.split(ref_feature)
files.append(filename[0])
for tar in os.listdir(tar_folder):
if tar.endswith(".fa") or \
tar.endswith(".fna") or \
tar.endswith(".fasta"):
filename = ".".join((tar.split("."))[:-1])
for file_ in files:
if filename == file_:
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder, self.tmp_fa))
change = True
if change:
change = False
shutil.move(os.path.join(tar_folder, self.tmp_fa),
os.path.join(tar_merge, prefix + ".fa"))
self.helper.remove_all_content(tar_folder, ".fa", "file")
self.helper.move_all_content(tar_merge, tar_folder, None)
shutil.rmtree(tar_merge)
def get_prefix(self, folder, ref_feature):
datas = folder.split("_folder")
if ref_feature == "":
prefix = datas[0][:-4]
elif ref_feature == "_fasta":
if datas[0].endswith(".fa"):
prefix = datas[0][:-3]
elif datas[0].endswith(".fna"):
prefix = datas[0][:-4]
elif datas[0].endswith(".fasta"):
prefix = datas[0][:-6]
else:
datas = datas[0][:-4]
datas = datas.split(ref_feature)
prefix = datas[0]
return prefix
def combine_wig(self, ref_folder, tar_folder, ref_feature, libs):
tar_merge = os.path.join(tar_folder, "merge_tmp")
change_f = False
change_r = False
if ref_feature is None:
ref_feature = ""
else:
ref_feature = "_" + ref_feature
self.helper.check_make_folder(tar_merge)
for folder in os.listdir(ref_folder):
files = []
if "_folder" in folder:
prefix = self.get_prefix(folder, ref_feature)
print("Merging wig file of " + prefix)
for file_ in os.listdir(os.path.join(ref_folder, folder)):
if ref_feature == "":
files.append(file_[:-4])
elif ref_feature == "_fasta":
files.append(file_[:-3])
else:
filename = file_.split(ref_feature)
files.append(filename[0])
for tar in os.listdir(tar_folder):
filename = tar.split("_STRAIN_")
for file_ in files:
if (tar.endswith(".wig")) and (
file_ == filename[-1][:-4]):
for lib in libs:
if (filename[0] in lib) and (lib[-1] == "+"):
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder,
self.tmp_wig_forward))
change_f = True
elif (filename[0] in lib) and (lib[-1] == "-"):
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder,
self.tmp_wig_reverse))
change_r = True
if change_f and change_r:
change_f = False
change_r = False
shutil.move(os.path.join(tar_folder, self.tmp_wig_forward),
os.path.join(tar_merge,
prefix + "_forward.wig"))
shutil.move(os.path.join(tar_folder, self.tmp_wig_reverse),
os.path.join(tar_merge,
prefix + "_reverse.wig"))
self.helper.remove_all_content(tar_folder, ".wig", "file")
self.helper.move_all_content(tar_merge, tar_folder, None)
shutil.rmtree(tar_merge)
def combine_gff(self, ref_folder, tar_folder, ref_feature, tar_feature):
tar_merge = os.path.join(tar_folder, "merge_tmp")
change = False
if tar_feature is None:
tar_feature = ""
else:
tar_feature = "_" + tar_feature
if ref_feature is None:
ref_feature = ""
else:
ref_feature = "_" + ref_feature
self.helper.check_make_folder(tar_merge)
for folder in os.listdir(ref_folder):
files = []
if "_folder" in folder:
datas = folder.split("_folder")
if ref_feature == "":
prefix = datas[0][:-4]
elif ref_feature == "_fasta":
if datas[0].endswith(".fa"):
prefix = datas[0][:-3]
elif datas[0].endswith(".fna"):
prefix = datas[0][:-4]
elif datas[0].endswith(".fasta"):
prefix = datas[0][:-6]
else:
datas = datas[0][:-4]
datas = datas.split(ref_feature)
prefix = datas[0]
print("Merging gff file of " + prefix + tar_feature)
for file_ in os.listdir(os.path.join(ref_folder, folder)):
if ref_feature == "":
files.append(file_[:-4])
elif ref_feature == "_fasta":
files.append(file_[:-3])
else:
filename = file_.split(ref_feature)
files.append(filename[0])
for tar in os.listdir(tar_folder):
for file_ in files:
if (".gff" in tar) and (
file_ + tar_feature == tar[:-4]):
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder, self.tmp_gff))
change = True
if change:
change = False
shutil.move(os.path.join(tar_folder, self.tmp_gff),
os.path.join(tar_folder, "merge_tmp",
prefix + tar_feature + ".gff"))
self.helper.remove_all_content(tar_folder, ".gff", "file")
self.helper.move_all_content(tar_merge, tar_folder, None)
shutil.rmtree(tar_merge)
def parser_fasta(self, fastas):
par_tmp = os.path.join(fastas, "tmp")
first = True
out = None
out_t = None
for fasta in os.listdir(fastas):
if (fasta.endswith("fasta") or
fasta.endswith("fa") or
fasta.endswith("fna")):
self.seq_editer.modify_header(os.path.join(fastas, fasta))
self.helper.check_make_folder(par_tmp)
for fasta in os.listdir(fastas):
if ("_folder" not in fasta) and ("tmp" != fasta):
if (fasta.endswith(".fa")) or \
(fasta.endswith(".fna")) or \
(fasta.endswith(".fasta")):
out_path = os.path.join(fastas, fasta + "_folder")
print("Parser " + fasta + "...")
self.helper.check_make_folder(out_path)
with open(os.path.join(fastas, fasta), "r") as f_f:
for line in f_f:
if line[0] == ">":
line = line.strip()
if ("|" in line) and (
len(line.split("|")) > 4):
strain = line.split("|")
name = strain[3]
else:
name = line[1:]
if first:
first = False
else:
out.close()
out_t.close()
out = open(os.path.join(
out_path, name + ".fa"), "w")
out_t = open(os.path.join(
par_tmp, name + ".fa"), "w")
out.write(">" + name + "\n")
out_t.write(">" + name + "\n")
else:
out.write(line)
out_t.write(line)
out.close()
out_t.close()
def parser_gff(self, gff_folder, feature):
par_tmp = os.path.join(gff_folder, "tmp")
out = None
out_t = None
first = True
if feature is None:
feature = ""
else:
feature = "_" + feature
self.helper.check_make_folder(par_tmp)
for filename in os.listdir(gff_folder):
pre_seq_id = ""
if ("_folder" not in filename) and ("tmp" != filename):
out_path = os.path.join(gff_folder, filename + "_folder")
if ".gff" in filename:
print("Parser " + filename + "...")
self.helper.check_make_folder(out_path)
self.helper.sort_gff(os.path.join(gff_folder, filename),
os.path.join(gff_folder, "tmp.gff"))
f_h = open(os.path.join(gff_folder, "tmp.gff"), "r")
for row in csv.reader(f_h, delimiter="\t"):
if row[0].startswith("#"):
continue
else:
if pre_seq_id == row[0]:
out.write("\t".join(row) + "\n")
out_t.write("\t".join(row) + "\n")
else:
if first:
first = False
else:
out.close()
out_t.close()
out = open(os.path.join(out_path,
row[0] + feature + ".gff"), "w")
out_t = open(os.path.join(par_tmp,
row[0] + feature + ".gff"), "w")
pre_seq_id = row[0]
out.write("\t".join(row) + "\n")
out_t.write("\t".join(row) + "\n")
f_h.close()
if os.path.exists(os.path.join(gff_folder, "tmp.gff")):
os.remove(os.path.join(gff_folder, "tmp.gff"))
out.close()
out_t.close()
def parser_wig(self, wig_folder):
par_tmp = os.path.join(wig_folder, "tmp")
first = True
out = None
out_t = None
self.helper.check_make_folder(par_tmp)
for filename in os.listdir(wig_folder):
track_info = ""
if ("_folder" not in filename) and ("tmp" != filename):
out_path = os.path.join(wig_folder, filename + "_folder")
if ".wig" in filename:
print("Parser {0}...".format(filename))
self.helper.check_make_folder(out_path)
with open(os.path.join(wig_folder, filename), "r") as w_f:
for line in w_f:
line = line.split(" ")
if (line[0] == "track"):
track_info = " ".join(line)
if (line[0] == "variableStep"):
strain = line[1].split("=")
if first:
first = False
else:
out.close()
out_t.close()
out = open("".join([
os.path.join(out_path, filename[:-4]),
"_STRAIN_", strain[1], ".wig"]), "w")
out_t = open("".join([
os.path.join(wig_folder, "tmp",
filename[:-4]),
"_STRAIN_", strain[1], ".wig"]), "w")
if track_info != "":
out.write(track_info)
out_t.write(track_info)
out.write(" ".join(line))
out_t.write(" ".join(line))
if (line[0] != "track") and (
line[0] != "variableStep"):
out.write(" ".join(line))
out_t.write(" ".join(line))
out.close()
out_t.close()
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {"tmp_tar": os.path.join(tar_folder, "tmp")}
class SNPCalling(object):
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "reference":
file_type = "compare_reference"
else:
file_type = "validate_target"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fasta_path = os.path.join(args_snp.fastas, "tmp")
self.outputs = {
"table": os.path.join(args_snp.out_folder, file_type, "SNP_table"),
"raw": os.path.join(args_snp.out_folder, file_type,
"SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf")
}
if "whole_reads.bam" in os.listdir(args_snp.out_folder):
self.helper.remove_all_content(args_snp.out_folder, "whole_read",
"file")
self.bams = {
"whole": os.path.join(args_snp.out_folder, "whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder, "whole_reads_sorted.bam")
}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {
"with": "with_BAQ",
"without": "without_BAQ",
"extend": "extend_BAQ"
}
def _import_bam(self, bam_folder, bams):
num_bam = 0
for bam in os.listdir(bam_folder):
if bam.endswith(".bam"):
num_bam += 1
bams.append(os.path.join(bam_folder, bam))
return num_bam
def _transcript_snp(self, fasta, snp, out_table_prefix, type_, prefix,
bam_number, table_path, args_snp):
seq_path = os.path.join(self.seq_path, self.baqs[type_], prefix)
stat_file = os.path.join(
self.stat_path,
"_".join(["stat", "_".join([prefix, self.baqs[type_]]),
"SNP.csv"]))
snp_detect(fasta, snp, out_table_prefix,
os.path.join(seq_path,
prefix), bam_number, stat_file, args_snp)
self.helper.move_all_content(table_path, self.stat_path, [".png"])
def _run_tools(self, fasta_file, out_bcf, out_raw_prefix, type_, args_snp):
if type_ == "with":
call([
args_snp.samtools_path, "mpileup", "-t", "DP", "-ugf",
fasta_file, self.bams["sort"], "--ignore-RG"
],
stdout=out_bcf)
elif type_ == "without":
call([
args_snp.samtools_path, "mpileup", "-t", "DP", "-B", "-ugf",
fasta_file, self.bams["sort"], "--ignore-RG"
],
stdout=out_bcf)
elif type_ == "extend":
call([
args_snp.samtools_path, "mpileup", "-t", "DP", "-E", "-ugf",
fasta_file, self.bams["sort"], "--ignore-RG"
],
stdout=out_bcf)
out_vcf = "_".join([out_raw_prefix, self.baqs[type_] + ".vcf"])
if args_snp.chrom == "1":
call([
args_snp.bcftools_path, "call", "--ploidy", args_snp.chrom,
self.outputs["tmp"], "-vmO", "v", "-o", out_vcf
])
elif args_snp.chrom == "2":
call([
args_snp.bcftools_path, "call", self.outputs["tmp"], "-vmO",
"v", "-o", out_vcf
])
return out_vcf
def _run_sub(self, args_snp, fasta_file, type_, file_prefixs, prefix,
table_path, bam_number):
out_bcf = open(self.outputs["tmp"], "w")
out_vcf = self._run_tools(fasta_file, out_bcf,
file_prefixs["raw_prefix"], type_, args_snp)
self.helper.check_make_folder(
os.path.join(self.seq_path, self.baqs[type_], prefix))
self._transcript_snp(
fasta_file, out_vcf,
"_".join([file_prefixs["table_prefix"], self.baqs[type_]]), type_,
prefix, bam_number, table_path, args_snp)
out_bcf.close()
def _run_program(self, fasta_file, file_prefixs, prefix, bam_number,
table_path, args_snp):
for index in args_snp.program:
if index == "1":
type_ = "with"
print("Running SNP calling with BAQ...")
elif index == "2":
type_ = "without"
print("Running SNP calling without BAQ...")
elif index == "3":
print("Running SNP calling extend BAQ...")
type_ = "extend"
else:
print("Error: No correct program, please assign 1, 2, 3")
sys.exit()
self._run_sub(args_snp, fasta_file, type_, file_prefixs, prefix,
table_path, bam_number)
def _detect_fasta(self, fasta):
detect = False
if fasta.endswith(".fa"):
prefix = fasta[:-3]
detect = True
elif fasta.endswith(".fna"):
prefix = fasta[:-4]
detect = True
elif fasta.endswith(".fasta"):
prefix = fasta[:-6]
detect = True
return (detect, prefix)
def _run_bam(self, samtools_path, sub_command, bam_file):
if sub_command == "merge":
command = (" ".join(
[samtools_path, sub_command, self.bams["whole"], bam_file]))
elif sub_command == "sort":
command = (" ".join([
samtools_path, sub_command, "-o", bam_file, self.bams["whole"]
]))
os.system(command)
def _merge_bams(self, args_snp):
bams = []
num_normal = 0
num_frag = 0
if (args_snp.frag_bams is None) and (args_snp.normal_bams is None):
print("Error: There is no BAMs folders!!")
sys.exit()
else:
if args_snp.normal_bams is not None:
num_normal = self._import_bam(args_snp.normal_bams, bams)
if args_snp.frag_bams is not None:
num_frag = self._import_bam(args_snp.frag_bams, bams)
num_bam = num_normal + num_frag
if num_bam <= 1:
shutil.copyfile(bams[0], self.bams["whole"])
print("Sort BAM file now ...")
self._run_bam(args_snp.samtools_path, "sort", self.bams["sort"])
else:
print("Merge BAM files now ...")
self._run_bam(args_snp.samtools_path, "merge", " ".join(bams))
print("Sort BAM file now ...")
self._run_bam(args_snp.samtools_path, "sort", self.bams["sort"])
return num_bam
def _modify_header(self, fastas):
for fasta in os.listdir(fastas):
if fasta.endswith("fasta") or \
fasta.endswith("fa") or \
fasta.endswith("fna"):
self.seq_editer.modify_header(os.path.join(fastas, fasta))
def _get_header(self, samtools_path):
command = " ".join([samtools_path, "view", "-H", self.bams["sort"]])
os.system(">".join([command, self.header]))
def _get_genome_name(self, samtools_path):
self._get_header(samtools_path)
fh = open(self.header, "r")
seq_names = []
for row in csv.reader(fh, delimiter="\t"):
if row[0] == "@SQ":
seq_names.append(row[1].split(":")[1])
fh.close()
return seq_names
def run_snp_calling(self, args_snp):
self.multiparser.parser_fasta(args_snp.fastas)
self._modify_header(args_snp.fastas)
bam_number = self._merge_bams(args_snp)
seq_names = self._get_genome_name(args_snp.samtools_path)
if ("1" not in args_snp.program) and (
"2" not in args_snp.program) and ("3" not in args_snp.program):
print("Error:Please assign a correct BAQ type: "
"'1' means 'with_BAQ', '2' means 'with_BAQ' or "
"'3' means 'extend_BAQ'.")
sys.exit()
else:
for fasta in os.listdir(self.fasta_path):
if (fasta.split(".f")[0] in seq_names):
fasta_datas = self._detect_fasta(fasta)
detect = fasta_datas[0]
prefix = fasta_datas[1]
if detect:
detect = False
print("Computing {0} now ...".format(fasta))
self.helper.check_make_folder(
os.path.join(self.outputs["table"], prefix))
self.helper.check_make_folder(
os.path.join(self.outputs["raw"], prefix))
file_prefixs = {
"raw_prefix":
os.path.join(self.outputs["raw"], prefix, prefix),
"table_prefix":
os.path.join(self.outputs["table"], prefix, prefix)
}
fasta_file = os.path.join(self.fasta_path, fasta)
table_path = os.path.join(self.outputs["table"],
prefix)
self._run_program(fasta_file, file_prefixs, prefix,
bam_number, table_path, args_snp)
os.remove(self.outputs["tmp"])
self.helper.remove_tmp(args_snp.fastas)
os.remove(self.bams["whole"])
os.remove(self.bams["sort"])
os.remove(self.header)
class SNPCalling(object):
'''detection of SNP'''
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "reference":
file_type = "compare_reference"
else:
file_type = "validate_target"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fasta_path = os.path.join(args_snp.fastas, "tmp")
self.outputs = {"table": os.path.join(
args_snp.out_folder, file_type, "SNP_table"),
"raw": os.path.join(
args_snp.out_folder, file_type, "SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf"),
"depth": os.path.join(args_snp.out_folder, "tmp_depth")}
if "whole_reads.bam" in os.listdir(args_snp.out_folder):
self.helper.remove_all_content(args_snp.out_folder,
"whole_read", "file")
self.bams = {"whole": os.path.join(args_snp.out_folder,
"whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam"),
"bams": []}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {"with": "with_BAQ", "without": "without_BAQ",
"extend": "extend_BAQ"}
def _transcript_snp(self, fasta, snp, out_table_prefix, type_,
prefix, bam_number, table_path, args_snp):
seq_path = os.path.join(self.seq_path, self.baqs[type_], prefix)
stat_prefix = os.path.join(self.stat_path, "_".join([
"stat", "_".join([prefix, self.baqs[type_]]), "SNP"]))
snp_detect(fasta, snp, self.outputs["depth"], out_table_prefix,
os.path.join(seq_path, prefix), bam_number,
stat_prefix, args_snp)
self.helper.move_all_content(table_path, self.stat_path, [".png"])
def _get_para(self, args_snp):
bams = self.bams["sort"]
if args_snp.caller == "c":
bcf_para = "-vcO"
else:
bcf_para = "-vmO"
return bams, bcf_para
def _run_tools(self, fasta_file, out_raw_prefix, type_, args_snp):
bams, bcf_para = self._get_para(args_snp)
if type_ == "with":
command = [args_snp.samtools_path, "mpileup", "-t", "DP"]
elif type_ == "without":
command = [args_snp.samtools_path, "mpileup", "-t", "DP", "-B"]
elif type_ == "extend":
command = [args_snp.samtools_path, "mpileup", "-t", "DP", "-E"]
if args_snp.rg:
command = command + ["-ugf", fasta_file, bams]
else:
command = command + ["--ignore-RG", "-ugf", fasta_file, bams]
os.system(" ".join(command) + ">" + self.outputs["tmp"])
out_vcf = "_".join([out_raw_prefix, self.baqs[type_] + ".vcf"])
if args_snp.chrom == "1":
call([args_snp.bcftools_path, "call", "--ploidy", args_snp.chrom,
self.outputs["tmp"], bcf_para, "v", "-o", out_vcf])
elif args_snp.chrom == "2":
call([args_snp.bcftools_path, "call",
self.outputs["tmp"], bcf_para, "v", "-o", out_vcf])
return out_vcf
def _run_sub(self, args_snp, fasta_file, type_, file_prefixs, prefix,
table_path, bam_number):
out_vcf = self._run_tools(fasta_file, file_prefixs["raw_prefix"],
type_, args_snp)
self.helper.check_make_folder(
os.path.join(self.seq_path, self.baqs[type_], prefix))
self._transcript_snp(
fasta_file, out_vcf,
"_".join([file_prefixs["table_prefix"], self.baqs[type_]]),
type_, prefix, bam_number, table_path, args_snp)
def _run_program(self, fasta_file, file_prefixs, prefix, bam_number,
table_path, args_snp):
for index in args_snp.program:
if index == "with_BAQ":
type_ = "with"
print("Running SNP calling with BAQ")
elif index == "without_BAQ":
type_ = "without"
print("Running SNP calling without BAQ")
elif index == "extend_BAQ":
print("Running SNP calling extend BAQ")
type_ = "extend"
else:
print("Error: No correct program, please assign "
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\"!")
sys.exit()
self._run_sub(args_snp, fasta_file, type_, file_prefixs, prefix,
table_path, bam_number)
def _detect_fasta(self, fasta):
detect = False
if fasta.endswith(".fa"):
prefix = fasta[:-3]
detect = True
elif fasta.endswith(".fna"):
prefix = fasta[:-4]
detect = True
elif fasta.endswith(".fasta"):
prefix = fasta[:-6]
detect = True
return (detect, prefix)
def _run_bam(self, samtools_path, sub_command, bam_file):
if sub_command == "merge":
command = (" ".join([samtools_path, sub_command,
self.bams["whole"], bam_file]))
elif sub_command == "sort":
command = (" ".join([samtools_path, sub_command,
"-o", bam_file, self.bams["whole"]]))
os.system(command)
self.bams["bams"].append(bam_file.replace(".bam", "_sort.bam"))
def _merge_bams(self, args_snp):
bams = []
num_normal = 0
num_frag = 0
if (args_snp.bams is None):
print("Error: There is no BAMs folders!!")
sys.exit()
else:
num_bam = 0
for files in args_snp.bams:
for bam in glob(files):
bams.append(bam)
num_bam += 1
if num_bam <= 1:
shutil.copyfile(bams[0], self.bams["whole"])
print("Sorting BAM file now")
self._run_bam(args_snp.samtools_path, "sort",
self.bams["sort"])
else:
print("Merging BAM files now")
self._run_bam(args_snp.samtools_path, "merge",
" ".join(bams))
print("Sorting BAM file now")
self._run_bam(args_snp.samtools_path, "sort",
self.bams["sort"])
out_depth = open(self.outputs["depth"], "w")
call([args_snp.samtools_path, "index", self.bams["sort"]])
call([args_snp.samtools_path, "depth", self.bams["sort"]],
stdout=out_depth)
return num_bam
def _modify_header(self, fastas):
for fasta in os.listdir(fastas):
if fasta.endswith("fasta") or \
fasta.endswith("fa") or \
fasta.endswith("fna"):
self.seq_editer.modify_header(os.path.join(fastas, fasta))
def _get_header(self, samtools_path, bam, seq_names):
command = " ".join([samtools_path, "view", "-H", bam])
os.system(">".join([command, self.header]))
fh = open(self.header, "r")
for row in csv.reader(fh, delimiter="\t"):
if row[0] == "@SQ":
seq_names.append(row[1].split(":")[1])
fh.close()
def _get_genome_name(self, args_snp):
seq_names = []
self._get_header(args_snp.samtools_path, self.bams["sort"],
seq_names)
return seq_names
def _remove_bams(self):
if os.path.exists(self.bams["whole"]):
os.remove(self.bams["whole"])
if os.path.exists(self.bams["whole"] + ".bai"):
os.remove(self.bams["whole"] + ".bai")
if os.path.exists(self.bams["sort"]):
os.remove(self.bams["sort"])
if os.path.exists(self.bams["sort"] + ".bai"):
os.remove(self.bams["sort"] + ".bai")
if os.path.exists(self.header):
os.remove(self.header)
os.remove(self.outputs["depth"])
def run_snp_calling(self, args_snp):
self.multiparser.parser_fasta(args_snp.fastas)
self._modify_header(args_snp.fastas)
bam_number = self._merge_bams(args_snp)
seq_names = self._get_genome_name(args_snp)
if ("with_BAQ" not in args_snp.program) and (
"without_BAQ" not in args_snp.program) and (
"extend_BAQ" not in args_snp.program):
print("Error: Please assign a correct programs: "
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\".")
sys.exit()
else:
for fasta in os.listdir(self.fasta_path):
if (fasta.split(".f")[0] in seq_names):
fasta_datas = self._detect_fasta(fasta)
detect = fasta_datas[0]
prefix = fasta_datas[1]
if detect:
detect = False
print("Computing {0} now".format(fasta))
self.helper.check_make_folder(
os.path.join(self.outputs["table"], prefix))
self.helper.check_make_folder(
os.path.join(self.outputs["raw"], prefix))
file_prefixs = {"raw_prefix": os.path.join(
self.outputs["raw"], prefix, prefix),
"table_prefix": os.path.join(
self.outputs["table"], prefix, prefix)}
fasta_file = os.path.join(self.fasta_path, fasta)
table_path = os.path.join(self.outputs["table"],
prefix)
self._run_program(fasta_file, file_prefixs, prefix,
bam_number, table_path, args_snp)
os.remove(self.outputs["tmp"])
self.helper.remove_tmp_dir(args_snp.fastas)
self._remove_bams()
class Multiparser(object):
def __init__(self):
self.seq_editer = SeqEditer()
self.helper = Helper()
self.tmp_fa = "tmp.fa"
self.tmp_gff = "tmp.gff"
self.tmp_wig_forward = "tmp_forward.wig"
self.tmp_wig_reverse = "tmp_reverse.wig"
def combine_fasta(self, ref_folder, tar_folder, ref_feature):
'''combine multiple fasta files'''
tar_merge = os.path.join(tar_folder, "merge_tmp")
change = False
if ref_feature is None:
ref_feature = ""
else:
ref_feature = "_" + ref_feature
self.helper.check_make_folder(tar_merge)
for folder in os.listdir(ref_folder):
files = []
if "_folder" in folder:
datas = folder.split("_folder")
if ref_feature == "":
prefix = datas[0][:-4]
elif ref_feature == "_fasta":
if datas[0].endswith(".fa"):
prefix = datas[0][:-3]
elif datas[0].endswith(".fna"):
prefix = datas[0][:-4]
elif datas[0].endswith(".fasta"):
prefix = datas[0][:-6]
else:
datas = datas[0][:-4]
datas = datas.split(ref_feature)
prefix = datas[0]
print("Merging fasta files of " + prefix)
for file_ in os.listdir("/".join([ref_folder, folder])):
if ref_feature == "":
files.append(file_[:-4])
elif ref_feature == "_fasta":
files.append(file_[:-3])
else:
filename = file_.split(ref_feature)
files.append(filename[0])
for tar in os.listdir(tar_folder):
if tar.endswith(".fa") or \
tar.endswith(".fna") or \
tar.endswith(".fasta"):
filename = ".".join((tar.split("."))[:-1])
for file_ in files:
if filename == file_:
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder, self.tmp_fa))
change = True
if change:
change = False
shutil.move(os.path.join(tar_folder, self.tmp_fa),
os.path.join(tar_merge, prefix + ".fa"))
self.helper.remove_all_content(tar_folder, ".fa", "file")
self.helper.move_all_content(tar_merge, tar_folder, None)
shutil.rmtree(tar_merge)
def get_prefix(self, folder, ref_feature):
datas = folder.split("_folder")
if ref_feature == "":
prefix = datas[0][:-4]
elif ref_feature == "_fasta":
if datas[0].endswith(".fa"):
prefix = datas[0][:-3]
elif datas[0].endswith(".fna"):
prefix = datas[0][:-4]
elif datas[0].endswith(".fasta"):
prefix = datas[0][:-6]
else:
datas = datas[0][:-4]
datas = datas.split(ref_feature)
prefix = datas[0]
return prefix
def combine_wig(self, ref_folder, tar_folder, ref_feature, libs):
'''combine multiple wig files'''
tar_merge = os.path.join(tar_folder, "merge_tmp")
change_f = False
change_r = False
if ref_feature is None:
ref_feature = ""
else:
ref_feature = "_" + ref_feature
self.helper.check_make_folder(tar_merge)
for folder in os.listdir(ref_folder):
files = []
if "_folder" in folder:
prefix = self.get_prefix(folder, ref_feature)
print("Merging wig files of " + prefix)
for file_ in os.listdir(os.path.join(ref_folder, folder)):
if ref_feature == "":
files.append(file_[:-4])
elif ref_feature == "_fasta":
files.append(file_[:-3])
else:
filename = file_.split(ref_feature)
files.append(filename[0])
for tar in os.listdir(tar_folder):
filename = tar.split("_STRAIN_")
for file_ in files:
if (tar.endswith(".wig")) and (file_
== filename[-1][:-4]):
for lib in libs:
if (filename[0] in lib) and (lib[-1] == "+"):
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder,
self.tmp_wig_forward))
change_f = True
elif (filename[0] in lib) and (lib[-1] == "-"):
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder,
self.tmp_wig_reverse))
change_r = True
if change_f and change_r:
change_f = False
change_r = False
shutil.move(
os.path.join(tar_folder, self.tmp_wig_forward),
os.path.join(tar_merge, prefix + "_forward.wig"))
shutil.move(
os.path.join(tar_folder, self.tmp_wig_reverse),
os.path.join(tar_merge, prefix + "_reverse.wig"))
else:
print("Error: comparing input files of {0} failed. "
"Please check the seq IDs of all gff and fasta "
"files, they should be the same.\nPlease "
"also check the wiggle files which should contain "
"forward and reverse files.".format(prefix))
sys.exit()
self.helper.remove_all_content(tar_folder, ".wig", "file")
self.helper.move_all_content(tar_merge, tar_folder, None)
shutil.rmtree(tar_merge)
def combine_gff(self, ref_folder, tar_folder, ref_feature, tar_feature):
'''combine multiple gff files'''
tar_merge = os.path.join(tar_folder, "merge_tmp")
change = False
if tar_feature is None:
tar_feature = ""
else:
tar_feature = "_" + tar_feature
if ref_feature is None:
ref_feature = ""
else:
ref_feature = "_" + ref_feature
self.helper.check_make_folder(tar_merge)
for folder in os.listdir(ref_folder):
files = []
if "_folder" in folder:
datas = folder.split("_folder")
if ref_feature == "":
prefix = datas[0][:-4]
elif ref_feature == "_fasta":
if datas[0].endswith(".fa"):
prefix = datas[0][:-3]
elif datas[0].endswith(".fna"):
prefix = datas[0][:-4]
elif datas[0].endswith(".fasta"):
prefix = datas[0][:-6]
else:
datas = datas[0][:-4]
datas = datas.split(ref_feature)
prefix = datas[0]
print("Merging gff files of " + prefix + tar_feature)
for file_ in os.listdir(os.path.join(ref_folder, folder)):
if ref_feature == "":
files.append(file_[:-4])
elif ref_feature == "_fasta":
files.append(file_[:-3])
else:
filename = file_.split(ref_feature)
files.append(filename[0])
for tar in os.listdir(tar_folder):
for file_ in files:
if (".gff" in tar) and (file_ + tar_feature
== tar[:-4]):
self.helper.merge_file(
os.path.join(tar_folder, tar),
os.path.join(tar_folder, self.tmp_gff))
change = True
if change:
change = False
shutil.move(
os.path.join(tar_folder, self.tmp_gff),
os.path.join(tar_folder, "merge_tmp",
prefix + tar_feature + ".gff"))
self.helper.remove_all_content(tar_folder, ".gff", "file")
self.helper.move_all_content(tar_merge, tar_folder, None)
shutil.rmtree(tar_merge)
def parser_fasta(self, fastas):
'''parser the fasta file based on strain'''
par_tmp = os.path.join(fastas, "tmp")
first = True
out = None
out_t = None
detect = False
for fasta in os.listdir(fastas):
if (fasta.endswith(".fasta") or fasta.endswith(".fa")
or fasta.endswith(".fna")):
detect = True
self.seq_editer.modify_header(os.path.join(fastas, fasta))
self.helper.check_make_folder(par_tmp)
if not detect:
print("Error: there are folders which conatin no fasta files! "
"The files should end with .fa or .fna or .fasta!")
sys.exit()
for fasta in os.listdir(fastas):
if ("_folder" not in fasta) and ("tmp" != fasta):
if (fasta.endswith(".fa")) or \
(fasta.endswith(".fna")) or \
(fasta.endswith(".fasta")):
out_path = os.path.join(fastas, fasta + "_folder")
print("Parsing " + fasta)
self.helper.check_make_folder(out_path)
with open(os.path.join(fastas, fasta), "r") as f_f:
for line in f_f:
if line[0] == ">":
line = line.strip()
if ("|" in line) and (len(line.split("|")) >
4):
strain = line.split("|")
name = strain[3]
else:
name = line[1:]
if first:
first = False
else:
out.close()
out_t.close()
out = open(
os.path.join(out_path, name + ".fa"), "w")
out_t = open(
os.path.join(par_tmp, name + ".fa"), "w")
out.write(">" + name + "\n")
out_t.write(">" + name + "\n")
else:
out.write(line)
out_t.write(line)
if out is not None:
out.close()
if out_t is not None:
out_t.close()
def parser_gff(self, gff_folder, feature):
'''parser gff file based on strain'''
par_tmp = os.path.join(gff_folder, "tmp")
out = None
out_t = None
first = True
detect = False
if feature is None:
feature = ""
else:
feature = "_" + feature
self.helper.check_make_folder(par_tmp)
for filename in os.listdir(gff_folder):
pre_seq_id = ""
if ("_folder" not in filename) and ("tmp" != filename):
out_path = os.path.join(gff_folder, filename + "_folder")
if ".gff" in filename:
detect = True
print("Parsing " + filename)
self.helper.check_make_folder(out_path)
self.helper.sort_gff(os.path.join(gff_folder, filename),
os.path.join(gff_folder, "tmp.gff"))
f_h = open(os.path.join(gff_folder, "tmp.gff"), "r")
for row in csv.reader(f_h, delimiter="\t"):
if row[0].startswith("#"):
continue
else:
if pre_seq_id == row[0]:
out.write("\t".join(row) + "\n")
out_t.write("\t".join(row) + "\n")
else:
if first:
first = False
else:
out.close()
out_t.close()
out = open(
os.path.join(out_path,
row[0] + feature + ".gff"),
"w")
out_t = open(
os.path.join(par_tmp,
row[0] + feature + ".gff"),
"w")
pre_seq_id = row[0]
out.write("\t".join(row) + "\n")
out_t.write("\t".join(row) + "\n")
f_h.close()
if not detect:
print("Error: There are folders which contain no gff3 files! "
"The files should end with .gff!")
sys.exit()
if os.path.exists(os.path.join(gff_folder, "tmp.gff")):
os.remove(os.path.join(gff_folder, "tmp.gff"))
if out is not None:
out.close()
if out_t is not None:
out_t.close()
def parser_wig(self, wig_folder):
'''parser the wig file based on strain'''
par_tmp = os.path.join(wig_folder, "tmp")
first = True
out = None
out_t = None
detect = False
self.helper.check_make_folder(par_tmp)
for filename in os.listdir(wig_folder):
track_info = ""
if ("_folder" not in filename) and ("tmp" != filename):
out_path = os.path.join(wig_folder, filename + "_folder")
if ".wig" in filename:
detect = True
print("Parsing {0}".format(filename))
self.helper.check_make_folder(out_path)
with open(os.path.join(wig_folder, filename), "r") as w_f:
for line in w_f:
line = line.split(" ")
if (line[0] == "track"):
track_info = " ".join(line)
if (line[0] == "variableStep"):
strain = line[1].split("=")
if first:
first = False
else:
out.close()
out_t.close()
out = open(
"".join([
os.path.join(out_path, filename[:-4]),
"_STRAIN_", strain[1], ".wig"
]), "w")
out_t = open(
"".join([
os.path.join(wig_folder, "tmp",
filename[:-4]),
"_STRAIN_", strain[1], ".wig"
]), "w")
if track_info != "":
out.write(track_info)
out_t.write(track_info)
out.write(" ".join(line))
out_t.write(" ".join(line))
if (line[0] != "track") and (line[0] !=
"variableStep"):
out.write(" ".join(line))
out_t.write(" ".join(line))
if not detect:
print("Error: There are folders which contain no wig files! "
"The files should end with .wig!")
sys.exit()
if out is not None:
out.close()
if out_t is not None:
out_t.close()
class TargetFasta(object):
'''detection of sRNA target interaction'''
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {"tmp_tar": os.path.join(tar_folder, "tmp")}
def gen_folder(self, out_folder, ref_files):
new_ref_folder = os.path.join(out_folder, "tmp_reference")
self.helper.check_make_folder(new_ref_folder)
for file_ in ref_files:
shutil.copy(file_, new_ref_folder)
self.folders["tmp_ref"] = os.path.join(new_ref_folder, "tmp")
self.multiparser.parser_fasta(new_ref_folder)
if os.path.exists(os.path.join(out_folder, "fasta_files")):
shutil.rmtree(os.path.join(out_folder, "fasta_files"))
os.mkdir(os.path.join(out_folder, "fasta_files"))
if os.path.exists(self.folders["tmp_tar"]):
shutil.rmtree(self.folders["tmp_tar"])
os.mkdir(self.folders["tmp_tar"])
return new_ref_folder
def get_target_fasta(self, mut_table, tar_folder, ref_files,
out_name, out_folder, log):
new_ref_folder = self.gen_folder(out_folder, ref_files)
log.write("Running seq_editor.py for updating sequence.\n")
self.seq_editer.modify_seq(self.folders["tmp_ref"], mut_table,
self.folders["tmp_tar"], out_name)
print("Updating the reference sequences")
mh = open(mut_table, "r")
pre_strain = None
out = None
strain_num = 0
for row in csv.reader(mh, delimiter='\t'):
if not row[0].startswith("#"):
if (pre_strain != row[0]):
strain_num = strain_num + 1
tmp_tar_name = "_".join([out_name, row[0]]) + ".fa"
fasta = os.path.join(out_folder, "fasta_files",
tmp_tar_name)
if out is not None:
out.close()
out = open(fasta, "w")
if tmp_tar_name in os.listdir(self.folders["tmp_tar"]):
with open(os.path.join(
self.folders["tmp_tar"],
tmp_tar_name)) as f_h:
for line in f_h:
out.write(line)
else:
print("Error: No updated information of {0}.fa".format(
row[0]))
pre_strain = row[0]
out.close()
out_seq = out_name + ".fa"
if os.path.exists(out_seq):
os.remove(out_seq)
if strain_num == 1:
o_s = open(out_seq, "w")
for seq in os.listdir(os.path.join(out_folder, "fasta_files")):
if seq.endswith(".fa"):
with open(os.path.join(
out_folder, "fasta_files", seq)) as t_h:
for line in t_h:
if len(line) != 0:
if line.startswith(">"):
o_s.write(">" + out_name + "\n")
else:
o_s.write(line)
os.remove(os.path.join(out_folder, "fasta_files", seq))
o_s.close()
else:
for seq in os.listdir(os.path.join(out_folder, "fasta_files")):
if seq.endswith(".fa"):
os.system(" ".join(["cat", os.path.join(
out_folder, "fasta_files", seq),
">>", out_seq]))
os.remove(os.path.join(out_folder, "fasta_files", seq))
shutil.move(out_seq, os.path.join(
out_folder, "fasta_files", out_seq))
shutil.rmtree(self.folders["tmp_tar"])
shutil.rmtree(self.folders["tmp_ref"])
if "tmp_reference" in os.listdir(out_folder):
shutil.rmtree(new_ref_folder)
log.write("\t" + os.path.join(out_folder, "fasta_files", out_seq) +
" is generated.\n")
print("Please use the new fasta files to remapping again.")
class SNPCalling(object):
'''detection of SNP'''
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "related_genome":
file_type = "compare_related_and_reference_genomes"
else:
file_type = "mutations_of_reference_genomes"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fig_path = os.path.join(self.stat_path, "figs")
self.helper.check_make_folder(self.fig_path)
self.outputs = {"table": os.path.join(
args_snp.out_folder, file_type, "SNP_tables"),
"raw": os.path.join(
args_snp.out_folder, file_type, "SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf"),
"depth": os.path.join(args_snp.out_folder, "tmp_depth")}
self.bams = {"whole": os.path.join(args_snp.out_folder,
"whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam"),
"bams": []}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {"with": "with_BAQ", "without": "without_BAQ",
"extend": "extend_BAQ"}
def _transcript_snp(self, fasta, out_table_prefix, type_,
prefix, bam_datas, table_path, args_snp):
seq_path = os.path.join(self.seq_path, self.baqs[type_], prefix)
for bam in bam_datas:
stat_prefix = os.path.join(self.stat_path, "_".join([
"stat", "_".join([prefix, self.baqs[type_], bam["sample"]]),
"SNP"]))
snp_file = os.path.join(self.outputs["raw"], prefix, "_".join(
[prefix, self.baqs[type_], bam["sample"] + ".vcf"]))
snp_detect(
fasta, snp_file, self.outputs["depth"] + bam["sample"],
"_".join([out_table_prefix, bam["sample"]]),
os.path.join(seq_path, "_".join([prefix, bam["sample"]])),
bam["bam_number"], stat_prefix, args_snp, bam["rep"])
self.helper.move_all_content(table_path, self.fig_path, [".png"])
def _get_para(self, args_snp):
if args_snp.caller == "c":
bcf_para = "-vcO"
else:
bcf_para = "-vmO"
return bcf_para
def _run_tools(self, fasta_file, type_, args_snp, bam_datas, log):
bcf_para = self._get_para(args_snp)
for bam in bam_datas:
bam_file = os.path.join(args_snp.out_folder,
bam["sample"] + ".bam")
if type_ == "with":
command = [args_snp.samtools_path, "mpileup", "-t", "DP"]
elif type_ == "without":
command = [args_snp.samtools_path, "mpileup", "-t", "DP", "-B"]
elif type_ == "extend":
command = [args_snp.samtools_path, "mpileup", "-t", "DP", "-E"]
if args_snp.rg:
command = command + ["-ugf", fasta_file, bam_file]
else:
command = command + ["--ignore-RG", "-ugf", fasta_file, bam_file]
log.write(" ".join(command) + ">" + self.outputs["tmp"] + "\n")
os.system(" ".join(command) + ">" + self.outputs["tmp"])
bam["vcf"] = os.path.join(self.outputs["raw"], "_".join(
[self.baqs[type_], bam["sample"] + ".vcf"]))
if args_snp.chrom == "1":
log.write(" ".join([
args_snp.bcftools_path, "call", "--ploidy", args_snp.chrom,
self.outputs["tmp"], bcf_para, "v", "-o", bam["vcf"]]) + "\n")
call([args_snp.bcftools_path, "call", "--ploidy", args_snp.chrom,
self.outputs["tmp"], bcf_para, "v", "-o", bam["vcf"]])
elif args_snp.chrom == "2":
log.write(" ".join([args_snp.bcftools_path, "call",
self.outputs["tmp"], bcf_para, "v", "-o", bam["vcf"]]) + "\n")
call([args_snp.bcftools_path, "call",
self.outputs["tmp"], bcf_para, "v", "-o", bam["vcf"]])
log.write("Done!\n")
log.write("The following files are generated:\n")
for file_ in os.listdir(self.outputs["raw"]):
log.write("\t" + os.path.join(self.outputs["raw"], file_) + "\n")
def _parse_vcf_by_fa(self, args_snp, type_, num_prog, log):
seq_names = []
fa_prefixs = []
log.write("Parsing Vcf files by comparing fasta information.\n")
for fa in os.listdir(args_snp.fastas):
if (fa != "all.fa") and (not fa.endswith(".fai")):
with open(os.path.join(args_snp.fastas, fa)) as fh:
for line in fh:
line = line.strip()
if line.startswith(">"):
seq_names.append(line[1:])
fa_prefix = ".".join(fa.split(".")[:-1])
fa_prefixs.append(fa_prefix)
vcf_folder = os.path.join(
self.outputs["raw"], fa_prefix)
if num_prog == 0:
self.helper.check_make_folder(vcf_folder)
self.helper.check_make_folder(os.path.join(
self.outputs["table"], fa_prefix))
self.helper.check_make_folder(
os.path.join(self.seq_path, self.baqs[type_], fa_prefix))
for vcf in os.listdir(self.outputs["raw"]):
if vcf.endswith(".vcf"):
out = open(os.path.join(vcf_folder, "_".join(
[fa_prefix, vcf])), "w")
with open(os.path.join(self.outputs["raw"],
vcf)) as vh:
for line in vh:
line = line.strip()
if line.startswith("#"):
out.write(line + "\n")
else:
if line.split("\t")[0] in seq_names:
out.write(line + "\n")
out.close()
log.write("\t" + os.path.join(vcf_folder, "_".join(
[fa_prefix, vcf])) + " is generated.\n")
for vcf in os.listdir(self.outputs["raw"]):
if vcf.endswith(".vcf"):
os.remove(os.path.join(self.outputs["raw"], vcf))
return fa_prefixs
def _run_sub(self, args_snp, all_fasta, type_, bam_datas, num_prog, log):
self._run_tools(all_fasta, type_, args_snp, bam_datas, log)
fa_prefixs = self._parse_vcf_by_fa(args_snp, type_, num_prog, log)
log.write("Running transcript_SNP.py to do statistics, filter SNPs, "
"and generate potential sequences.\n")
log.write("The following files are generated:\n")
for fa_prefix in fa_prefixs:
for fasta in os.listdir(args_snp.fastas):
if fa_prefix in fasta:
fasta_file = os.path.join(args_snp.fastas, fasta)
table_path = os.path.join(self.outputs["table"], fa_prefix)
table_prefix = os.path.join(table_path, "_".join(
[fa_prefix, self.baqs[type_]]))
self._transcript_snp(
fasta_file, table_prefix,
type_, fa_prefix, bam_datas, table_path, args_snp)
seq_path = os.path.join(self.seq_path, self.baqs[type_], fa_prefix)
for folder in (table_path, self.stat_path, seq_path, self.fig_path):
for file_ in os.listdir(folder):
if os.path.isfile(os.path.join(folder, file_)):
log.write("\t" + os.path.join(folder, file_) + "\n")
def _run_program(self, all_fasta, bam_datas, args_snp, log):
num_prog = 0
log.write("Running Samtools to mpileup, and using Bcftools to "
"call snp.\n")
log.write("Please make sure the version of Samtools and Bcftools "
"are both at least 1.3.1.\n")
for index in args_snp.program:
if index == "with_BAQ":
type_ = "with"
print("Running SNP calling with BAQ")
log.write("Running SNP calling with BAQ.\n")
elif index == "without_BAQ":
type_ = "without"
print("Running SNP calling without BAQ")
log.write("Running SNP calling without BAQ.\n")
elif index == "extend_BAQ":
print("Running SNP calling extend BAQ")
log.write("Running SNP calling extend BAQ.\n")
type_ = "extend"
else:
print("Error: No correct program, please assign "
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\"!")
log.write("No valid program can be found, please assign"
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\".\n")
sys.exit()
self._run_sub(args_snp, all_fasta, type_, bam_datas, num_prog, log)
num_prog += 1
def _run_bam(self, samtools_path, sub_command, bam_file, type_file, log):
if sub_command == "merge":
command = (" ".join([samtools_path, sub_command,
self.bams["whole"], bam_file]))
elif sub_command == "sort":
if type_file == "all":
command = (" ".join([samtools_path, sub_command,
"-o", bam_file, self.bams["whole"]]))
else:
command = (" ".join([samtools_path, sub_command,
"-o",
bam_file, type_file]))
log.write(command + "\n")
os.system(command)
def _merge_bams(self, args_snp, bam_datas, log):
bams = []
num_normal = 0
num_frag = 0
log.write("Using Samtools to merge and sort BAM files.\n")
log.write("Please make sure the version of Samtools is at least 1.3.1.\n")
for bam in bam_datas:
bam["bam_number"] = 0
out_bam = os.path.join(args_snp.out_folder, bam["sample"] + ".bam")
if len(bam["bams"]) == 1:
print("Sorting BAM files of " + bam["sample"])
self._run_bam(
args_snp.samtools_path, "sort",
out_bam, bam["bams"][0], log)
bam["bam_number"] = 1
else:
print("Merging BAM files of " + bam["sample"])
self._run_bam(args_snp.samtools_path, "merge",
" ".join(bam["bams"]), "all", log)
print("Sorting BAM files of " + bam["sample"])
self._run_bam(
args_snp.samtools_path, "sort",
out_bam, "all", log)
bam["bam_number"] += 1
if os.path.exists(self.bams["whole"]):
os.remove(self.bams["whole"])
out_depth = open(self.outputs["depth"] + bam["sample"], "w")
log.write(" ".join([args_snp.samtools_path, "index", out_bam]) + "\n")
call([args_snp.samtools_path, "index", out_bam])
log.write(" ".join([args_snp.samtools_path, "depth", out_bam]) + "\n")
call([args_snp.samtools_path, "depth", out_bam],
stdout=out_depth)
out_depth.close()
log.write("Done!\n")
log.write("The following files are generated:\n")
log.write("\t" + self.bams["whole"] + " is temporary generated "
"(be deleted afterward).\n")
for file_ in os.listdir(args_snp.out_folder):
if os.path.isfile(os.path.join(args_snp.out_folder, file_)):
log.write("\t" + os.path.join(args_snp.out_folder, file_) + "\n")
def _modify_header(self, fastas):
for fasta in os.listdir(fastas):
if fasta.endswith("fasta") or \
fasta.endswith("fa") or \
fasta.endswith("fna"):
self.seq_editer.modify_header(os.path.join(fastas, fasta))
def _get_header(self, samtools_path, bam, seq_names):
command = " ".join([samtools_path, "view", "-H", bam])
os.system(">".join([command, self.header]))
fh = open(self.header, "r")
for row in csv.reader(fh, delimiter="\t"):
if row[0] == "@SQ":
if row[1].split(":")[1] not in seq_names:
seq_names.append(row[1].split(":")[1])
fh.close()
def _get_genome_name(self, args_snp, bam_datas):
seq_names = []
for bam in bam_datas:
bam_file = os.path.join(args_snp.out_folder,
bam["sample"] + ".bam")
self._get_header(args_snp.samtools_path,
bam_file, seq_names)
return seq_names
def _remove_bams(self, bam_datas, args_snp):
for bam in bam_datas:
bam_file = os.path.join(args_snp.out_folder,
bam["sample"] + ".bam")
if os.path.exists(bam_file):
os.remove(bam_file)
if os.path.exists(bam_file + ".bai"):
os.remove(bam_file + ".bai")
if os.path.exists(self.header):
os.remove(self.header)
os.remove(self.outputs["depth"] + bam["sample"])
def _extract_bams(self, bams, log):
bam_datas = []
for bam in bams:
datas = bam.split(":")
if len(datas) != 2:
log.write("the format of --bam_files is wrong!\n")
print("Error: the format of --bam_files is wrong!")
sys.exit()
for file_ in datas[-1].split(","):
if not os.path.exists(file_):
print("Error: there are some Bam files "
"which do not exist!")
log.write(file_ + " is not found.\n")
sys.exit()
bam_datas.append({"sample": datas[0],
"rep": len(datas[-1].split(",")),
"bams": datas[-1].split(",")})
return bam_datas
def _merge_fasta(self, fastas, log):
all_fasta = os.path.join(fastas, "all.fa")
names = []
out = open(all_fasta, "w")
print_ = False
for fasta in os.listdir(fastas):
if (fasta.endswith(".fa")) or (
fasta.endswith(".fasta")) or (
fasta.endswith(".fna")):
with open(os.path.join(fastas, fasta)) as fh:
for line in fh:
line = line.strip()
if line.startswith(">"):
if line not in names:
print_ = True
names.append(line)
else:
print_ = False
if print_:
out.write(line + "\n")
log.write(os.path.join(fastas, fasta) + " is loaded.\n")
out.close()
return all_fasta
def run_snp_calling(self, args_snp, log):
self._modify_header(args_snp.fastas)
all_fasta = self._merge_fasta(args_snp.fastas, log)
bam_datas = self._extract_bams(args_snp.bams, log)
self._merge_bams(args_snp, bam_datas, log)
if ("with_BAQ" not in args_snp.program) and (
"without_BAQ" not in args_snp.program) and (
"extend_BAQ" not in args_snp.program):
print("Error: Please assign a correct programs: "
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\".")
sys.exit()
else:
print("Detecting mutations now")
self._run_program(all_fasta, bam_datas, args_snp, log)
os.remove(self.outputs["tmp"])
os.remove(all_fasta)
os.remove(all_fasta + ".fai")
self.helper.remove_tmp_dir(args_snp.fastas)
self._remove_bams(bam_datas, args_snp)
log.write("Remove all the temporary files.\n")
class SNPCalling(object):
'''detection of SNP'''
def __init__(self, args_snp):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
if args_snp.types == "related_genome":
file_type = "compare_related_and_reference_genomes"
else:
file_type = "mutations_of_reference_genomes"
self.seq_path = os.path.join(args_snp.out_folder, file_type, "seqs")
self.stat_path = os.path.join(args_snp.out_folder, file_type,
"statistics")
self.fig_path = os.path.join(self.stat_path, "figs")
self.helper.check_make_folder(self.fig_path)
self.outputs = {
"table": os.path.join(args_snp.out_folder, file_type,
"SNP_tables"),
"raw": os.path.join(args_snp.out_folder, file_type,
"SNP_raw_outputs"),
"tmp": os.path.join(args_snp.out_folder, "tmp_bcf"),
"depth": os.path.join(args_snp.out_folder, "tmp_depth")
}
self.bams = {
"whole": os.path.join(args_snp.out_folder, "whole_reads.bam"),
"sort": os.path.join(args_snp.out_folder,
"whole_reads_sorted.bam"),
"bams": []
}
self.header = os.path.join(args_snp.out_folder, "header")
self.baqs = {
"with": "with_BAQ",
"without": "without_BAQ",
"extend": "extend_BAQ"
}
def _transcript_snp(self, fasta, out_table_prefix, type_, prefix,
bam_datas, table_path, args_snp):
seq_path = os.path.join(self.seq_path, self.baqs[type_], prefix)
for bam in bam_datas:
stat_prefix = os.path.join(
self.stat_path, "_".join([
"stat", "_".join([prefix, self.baqs[type_],
bam["sample"]]), "SNP"
]))
snp_file = os.path.join(
self.outputs["raw"], prefix,
"_".join([prefix, self.baqs[type_], bam["sample"] + ".vcf"]))
snp_detect(
fasta, snp_file, self.outputs["depth"] + bam["sample"],
"_".join([out_table_prefix, bam["sample"]]),
os.path.join(seq_path, "_".join([prefix, bam["sample"]])),
bam["bam_number"], stat_prefix, args_snp, bam["rep"])
self.helper.move_all_content(table_path, self.fig_path, [".png"])
def _get_para(self, args_snp):
if args_snp.caller == "c":
bcf_para = "-vcO"
else:
bcf_para = "-vmO"
return bcf_para
def _run_tools(self, fasta_file, type_, args_snp, bam_datas):
bcf_para = self._get_para(args_snp)
for bam in bam_datas:
bam_file = os.path.join(args_snp.out_folder,
bam["sample"] + ".bam")
if type_ == "with":
command = [args_snp.samtools_path, "mpileup", "-t", "DP"]
elif type_ == "without":
command = [args_snp.samtools_path, "mpileup", "-t", "DP", "-B"]
elif type_ == "extend":
command = [args_snp.samtools_path, "mpileup", "-t", "DP", "-E"]
if args_snp.rg:
command = command + ["-ugf", fasta_file, bam_file]
else:
command = command + [
"--ignore-RG", "-ugf", fasta_file, bam_file
]
os.system(" ".join(command) + ">" + self.outputs["tmp"])
bam["vcf"] = os.path.join(
self.outputs["raw"],
"_".join([self.baqs[type_], bam["sample"] + ".vcf"]))
if args_snp.chrom == "1":
call([
args_snp.bcftools_path, "call", "--ploidy", args_snp.chrom,
self.outputs["tmp"], bcf_para, "v", "-o", bam["vcf"]
])
elif args_snp.chrom == "2":
call([
args_snp.bcftools_path, "call", self.outputs["tmp"],
bcf_para, "v", "-o", bam["vcf"]
])
def _parse_vcf_by_fa(self, args_snp, type_, num_prog):
seq_names = []
fa_prefixs = []
for fa in os.listdir(args_snp.fastas):
if (fa != "all.fa") and (not fa.endswith(".fai")):
with open(os.path.join(args_snp.fastas, fa)) as fh:
for line in fh:
line = line.strip()
if line.startswith(">"):
seq_names.append(line[1:])
fa_prefix = ".".join(fa.split(".")[:-1])
fa_prefixs.append(fa_prefix)
vcf_folder = os.path.join(self.outputs["raw"], fa_prefix)
if num_prog == 0:
self.helper.check_make_folder(vcf_folder)
self.helper.check_make_folder(
os.path.join(self.outputs["table"], fa_prefix))
self.helper.check_make_folder(
os.path.join(self.seq_path, self.baqs[type_], fa_prefix))
for vcf in os.listdir(self.outputs["raw"]):
if vcf.endswith(".vcf"):
out = open(
os.path.join(vcf_folder, "_".join([fa_prefix,
vcf])), "w")
with open(os.path.join(self.outputs["raw"],
vcf)) as vh:
for line in vh:
line = line.strip()
if line.startswith("#"):
out.write(line + "\n")
else:
if line.split("\t")[0] in seq_names:
out.write(line + "\n")
out.close()
for vcf in os.listdir(self.outputs["raw"]):
if vcf.endswith(".vcf"):
os.remove(os.path.join(self.outputs["raw"], vcf))
return fa_prefixs
def _run_sub(self, args_snp, all_fasta, type_, bam_datas, num_prog):
self._run_tools(all_fasta, type_, args_snp, bam_datas)
fa_prefixs = self._parse_vcf_by_fa(args_snp, type_, num_prog)
for fa_prefix in fa_prefixs:
for fasta in os.listdir(args_snp.fastas):
if fa_prefix in fasta:
fasta_file = os.path.join(args_snp.fastas, fasta)
table_path = os.path.join(self.outputs["table"], fa_prefix)
table_prefix = os.path.join(
table_path, "_".join([fa_prefix, self.baqs[type_]]))
self._transcript_snp(fasta_file, table_prefix, type_, fa_prefix,
bam_datas, table_path, args_snp)
def _run_program(self, all_fasta, bam_datas, args_snp):
num_prog = 0
for index in args_snp.program:
if index == "with_BAQ":
type_ = "with"
print("Running SNP calling with BAQ")
elif index == "without_BAQ":
type_ = "without"
print("Running SNP calling without BAQ")
elif index == "extend_BAQ":
print("Running SNP calling extend BAQ")
type_ = "extend"
else:
print("Error: No correct program, please assign "
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\"!")
sys.exit()
self._run_sub(args_snp, all_fasta, type_, bam_datas, num_prog)
num_prog += 1
def _run_bam(self, samtools_path, sub_command, bam_file, type_file):
if sub_command == "merge":
command = (" ".join(
[samtools_path, sub_command, self.bams["whole"], bam_file]))
elif sub_command == "sort":
if type_file == "all":
command = (" ".join([
samtools_path, sub_command, "-o", bam_file,
self.bams["whole"]
]))
else:
command = (" ".join(
[samtools_path, sub_command, "-o", bam_file, type_file]))
os.system(command)
def _merge_bams(self, args_snp, bam_datas):
bams = []
num_normal = 0
num_frag = 0
for bam in bam_datas:
bam["bam_number"] = 0
out_bam = os.path.join(args_snp.out_folder, bam["sample"] + ".bam")
if len(bam["bams"]) == 1:
print("Sorting BAM files of " + bam["sample"])
self._run_bam(args_snp.samtools_path, "sort", out_bam,
bam["bams"][0])
bam["bam_number"] = 1
else:
print("Merging BAM files of " + bam["sample"])
self._run_bam(args_snp.samtools_path, "merge",
" ".join(bam["bams"]), "all")
print("Sorting BAM files of " + bam["sample"])
self._run_bam(args_snp.samtools_path, "sort", out_bam, "all")
bam["bam_number"] += 1
if os.path.exists(self.bams["whole"]):
os.remove(self.bams["whole"])
out_depth = open(self.outputs["depth"] + bam["sample"], "w")
call([args_snp.samtools_path, "index", out_bam])
call([args_snp.samtools_path, "depth", out_bam], stdout=out_depth)
out_depth.close()
def _modify_header(self, fastas):
for fasta in os.listdir(fastas):
if fasta.endswith("fasta") or \
fasta.endswith("fa") or \
fasta.endswith("fna"):
self.seq_editer.modify_header(os.path.join(fastas, fasta))
def _get_header(self, samtools_path, bam, seq_names):
command = " ".join([samtools_path, "view", "-H", bam])
os.system(">".join([command, self.header]))
fh = open(self.header, "r")
for row in csv.reader(fh, delimiter="\t"):
if row[0] == "@SQ":
if row[1].split(":")[1] not in seq_names:
seq_names.append(row[1].split(":")[1])
fh.close()
def _get_genome_name(self, args_snp, bam_datas):
seq_names = []
for bam in bam_datas:
bam_file = os.path.join(args_snp.out_folder,
bam["sample"] + ".bam")
self._get_header(args_snp.samtools_path, bam_file, seq_names)
return seq_names
def _remove_bams(self, bam_datas, args_snp):
for bam in bam_datas:
bam_file = os.path.join(args_snp.out_folder,
bam["sample"] + ".bam")
if os.path.exists(bam_file):
os.remove(bam_file)
if os.path.exists(bam_file + ".bai"):
os.remove(bam_file + ".bai")
if os.path.exists(self.header):
os.remove(self.header)
os.remove(self.outputs["depth"] + bam["sample"])
def _extract_bams(self, bams):
bam_datas = []
for bam in bams:
datas = bam.split(":")
if len(datas) != 2:
print("Error: the format of --bam_files is wrong!")
sys.exit()
for file_ in datas[-1].split(","):
if not os.path.exists(file_):
print("Error: there are some Bam files "
"which do not exist!")
sys.exit()
bam_datas.append({
"sample": datas[0],
"rep": len(datas[-1].split(",")),
"bams": datas[-1].split(",")
})
return bam_datas
def _merge_fasta(self, fastas):
all_fasta = os.path.join(fastas, "all.fa")
names = []
out = open(all_fasta, "w")
print_ = False
for fasta in os.listdir(fastas):
if (fasta.endswith(".fa")) or (fasta.endswith(".fasta")) or (
fasta.endswith(".fna")):
with open(os.path.join(fastas, fasta)) as fh:
for line in fh:
line = line.strip()
if line.startswith(">"):
if line not in names:
print_ = True
names.append(line)
else:
print_ = False
if print_:
out.write(line + "\n")
out.close()
return all_fasta
def run_snp_calling(self, args_snp):
self._modify_header(args_snp.fastas)
all_fasta = self._merge_fasta(args_snp.fastas)
bam_datas = self._extract_bams(args_snp.bams)
self._merge_bams(args_snp, bam_datas)
if ("with_BAQ" not in args_snp.program) and (
"without_BAQ"
not in args_snp.program) and ("extend_BAQ"
not in args_snp.program):
print("Error: Please assign a correct programs: "
"\"with_BAQ\", \"without_BAQ\", \"extend_BAQ\".")
sys.exit()
else:
print("Detecting mutations now")
self._run_program(all_fasta, bam_datas, args_snp)
os.remove(self.outputs["tmp"])
os.remove(all_fasta)
os.remove(all_fasta + ".fai")
self.helper.remove_tmp_dir(args_snp.fastas)
self._remove_bams(bam_datas, args_snp)
class TargetFasta(object):
'''detection of sRNA target interaction'''
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {"tmp_tar": os.path.join(tar_folder, "tmp")}
def gen_folder(self, out_folder, ref_files):
new_ref_folder = os.path.join(out_folder, "tmp_reference")
self.helper.check_make_folder(new_ref_folder)
for file_ in ref_files:
shutil.copy(file_, new_ref_folder)
self.folders["tmp_ref"] = os.path.join(new_ref_folder, "tmp")
self.multiparser.parser_fasta(new_ref_folder)
if os.path.exists(self.folders["tmp_tar"]):
shutil.rmtree(self.folders["tmp_tar"])
os.mkdir(self.folders["tmp_tar"])
return new_ref_folder
def get_target_fasta(self, mut_table, tar_folder, ref_files, combine,
out_folder):
pass
new_ref_folder = self.gen_folder(out_folder, ref_files)
self.seq_editer.modify_seq(self.folders["tmp_ref"], mut_table,
self.folders["tmp_tar"])
print("Updating the reference sequences")
mh = open(mut_table, "r")
pre_strain = None
out = None
for row in csv.reader(mh, delimiter='\t'):
strain = row[1]
if not row[0].startswith("#"):
if (pre_strain != row[1]):
fasta = os.path.join(out_folder, "fasta_files",
strain + ".fa")
if out is not None:
out.close()
out = open(fasta, "w")
if strain + ".fa" in os.listdir(self.folders["tmp_tar"]):
with open(
os.path.join(self.folders["tmp_tar"],
strain + ".fa")) as f_h:
for line in f_h:
out.write(line)
else:
print("Error: No fasta information of {0}.fa".format(
strain))
out.close()
if combine:
out_seq = "updated_genomes.fa"
if os.path.exists(out_seq):
os.remove(out_seq)
for seq in os.listdir(os.path.join(out_folder, "fasta_files")):
if seq.endswith(".fa"):
os.system(" ".join([
"cat",
os.path.join(out_folder, "fasta_files", seq), ">>",
out_seq
]))
os.remove(os.path.join(out_folder, "fasta_files", seq))
shutil.move(out_seq,
os.path.join(out_folder, "fasta_files", out_seq))
shutil.rmtree(self.folders["tmp_tar"])
shutil.rmtree(self.folders["tmp_ref"])
if "tmp_reference" in os.listdir(out_folder):
shutil.rmtree(new_ref_folder)
print("Please use the new fasta files to remapping again.")
class TargetFasta(object):
'''detection of sRNA target interaction'''
def __init__(self, tar_folder, ref_folder):
self.multiparser = Multiparser()
self.seq_editer = SeqEditer()
self.helper = Helper()
self.folders = {"tmp_tar": os.path.join(tar_folder, "tmp")}
def gen_folder(self, out_folder, ref_files):
new_ref_folder = os.path.join(out_folder, "tmp_reference")
self.helper.check_make_folder(new_ref_folder)
for file_ in ref_files:
shutil.copy(file_, new_ref_folder)
self.folders["tmp_ref"] = os.path.join(new_ref_folder, "tmp")
self.multiparser.parser_fasta(new_ref_folder)
if os.path.exists(os.path.join(out_folder, "fasta_files")):
shutil.rmtree(os.path.join(out_folder, "fasta_files"))
os.mkdir(os.path.join(out_folder, "fasta_files"))
if os.path.exists(self.folders["tmp_tar"]):
shutil.rmtree(self.folders["tmp_tar"])
os.mkdir(self.folders["tmp_tar"])
return new_ref_folder
def get_target_fasta(self, mut_table, tar_folder, ref_files, out_name,
out_folder, log):
new_ref_folder = self.gen_folder(out_folder, ref_files)
log.write("Running seq_editor.py for updating sequence.\n")
self.seq_editer.modify_seq(self.folders["tmp_ref"], mut_table,
self.folders["tmp_tar"], out_name)
print("Updating the reference sequences")
mh = open(mut_table, "r")
pre_strain = None
out = None
strain_num = 0
for row in csv.reader(mh, delimiter='\t'):
if not row[0].startswith("#"):
if (pre_strain != row[0]):
strain_num = strain_num + 1
tmp_tar_name = "_".join([out_name, row[0]]) + ".fa"
fasta = os.path.join(out_folder, "fasta_files",
tmp_tar_name)
if out is not None:
out.close()
out = open(fasta, "w")
if tmp_tar_name in os.listdir(self.folders["tmp_tar"]):
with open(
os.path.join(self.folders["tmp_tar"],
tmp_tar_name)) as f_h:
for line in f_h:
out.write(line)
else:
print("Error: No updated information of {0}.fa".format(
row[0]))
pre_strain = row[0]
out.close()
out_seq = out_name + ".fa"
if os.path.exists(out_seq):
os.remove(out_seq)
if strain_num == 1:
o_s = open(out_seq, "w")
for seq in os.listdir(os.path.join(out_folder, "fasta_files")):
if seq.endswith(".fa"):
with open(os.path.join(out_folder, "fasta_files",
seq)) as t_h:
for line in t_h:
if len(line) != 0:
if line.startswith(">"):
o_s.write(">" + out_name + "\n")
else:
o_s.write(line)
os.remove(os.path.join(out_folder, "fasta_files", seq))
o_s.close()
else:
for seq in os.listdir(os.path.join(out_folder, "fasta_files")):
if seq.endswith(".fa"):
os.system(" ".join([
"cat",
os.path.join(out_folder, "fasta_files", seq), ">>",
out_seq
]))
os.remove(os.path.join(out_folder, "fasta_files", seq))
shutil.move(out_seq, os.path.join(out_folder, "fasta_files", out_seq))
shutil.rmtree(self.folders["tmp_tar"])
shutil.rmtree(self.folders["tmp_ref"])
if "tmp_reference" in os.listdir(out_folder):
shutil.rmtree(new_ref_folder)
log.write("\t" + os.path.join(out_folder, "fasta_files", out_seq) +
" is generated.\n")
print("Please use the new fasta files to remapping again.")
