def align_and_analyze(is_cyclic,
index,
contigs_fpath,
output_dirpath,
ref_fpath,
reference_chromosomes,
ns_by_chromosomes,
old_contigs_fpath,
bed_fpath,
threads=1):
tmp_output_dirpath = create_minimap_output_dir(output_dirpath)
assembly_label = qutils.label_from_fpath(contigs_fpath)
corr_assembly_label = qutils.label_from_fpath_for_fname(contigs_fpath)
out_basename = join(tmp_output_dirpath, corr_assembly_label)
logger.info(' ' + qutils.index_to_str(index) + assembly_label)
if not qconfig.space_efficient:
log_out_fpath = join(
output_dirpath,
qconfig.contig_report_fname_pattern % corr_assembly_label +
'.stdout')
log_err_fpath = join(
output_dirpath,
qconfig.contig_report_fname_pattern % corr_assembly_label +
'.stderr')
icarus_out_fpath = join(
output_dirpath,
qconfig.icarus_report_fname_pattern % corr_assembly_label)
misassembly_fpath = join(
output_dirpath,
qconfig.contig_report_fname_pattern % corr_assembly_label +
'.mis_contigs.info')
unaligned_info_fpath = join(
output_dirpath,
qconfig.contig_report_fname_pattern % corr_assembly_label +
'.unaligned.info')
else:
log_out_fpath = '/dev/null'
log_err_fpath = '/dev/null'
icarus_out_fpath = '/dev/null'
misassembly_fpath = '/dev/null'
unaligned_info_fpath = '/dev/null'
icarus_out_f = open(icarus_out_fpath, 'w')
icarus_header_cols = [
'S1', 'E1', 'S2', 'E2', 'Reference', 'Contig', 'IDY', 'Ambiguous',
'Best_group'
]
icarus_out_f.write('\t'.join(icarus_header_cols) + '\n')
misassembly_f = open(misassembly_fpath, 'w')
if not qconfig.space_efficient:
logger.info(' ' + qutils.index_to_str(index) + 'Logging to files ' +
log_out_fpath + ' and ' + os.path.basename(log_err_fpath) +
'...')
else:
logger.info(' ' + qutils.index_to_str(index) + 'Logging is disabled.')
coords_fpath, coords_filtered_fpath, unaligned_fpath, used_snps_fpath = get_aux_out_fpaths(
out_basename)
status = align_contigs(coords_fpath, out_basename, ref_fpath,
contigs_fpath, old_contigs_fpath, index, threads,
log_out_fpath, log_err_fpath)
if status != AlignerStatus.OK:
with open(log_err_fpath, 'a') as log_err_f:
if status == AlignerStatus.ERROR:
logger.error(
' ' + qutils.index_to_str(index) +
'Failed aligning contigs ' +
qutils.label_from_fpath(contigs_fpath) +
' to the reference (non-zero exit code). ' +
('Run with the --debug flag to see additional information.'
if not qconfig.debug else ''))
elif status == AlignerStatus.FAILED:
log_err_f.write(
qutils.index_to_str(index) + 'Alignment failed for ' +
contigs_fpath + ':' + coords_fpath + 'doesn\'t exist.\n')
logger.info(' ' + qutils.index_to_str(index) +
'Alignment failed for ' + '\'' + assembly_label +
'\'.')
elif status == AlignerStatus.NOT_ALIGNED:
log_err_f.write(
qutils.index_to_str(index) + 'Nothing aligned for ' +
contigs_fpath + '\n')
logger.info(' ' + qutils.index_to_str(index) +
'Nothing aligned for ' + '\'' + assembly_label +
'\'.')
return status, {}, [], [], []
log_out_f = open(log_out_fpath, 'a')
# Loading the alignment files
log_out_f.write('Parsing coords...\n')
aligns = {}
with open(coords_fpath) as coords_file:
for line in coords_file:
mapping = Mapping.from_line(line)
aligns.setdefault(mapping.contig, []).append(mapping)
# Loading the reference sequences
log_out_f.write('Loading reference...\n') # TODO: move up
ref_features = {}
# Loading the regions (if any)
regions = {}
total_reg_len = 0
total_regions = 0
# # TODO: gff
# log_out_f.write('Loading regions...\n')
# log_out_f.write('\tNo regions given, using whole reference.\n')
for name, seq_len in reference_chromosomes.items():
log_out_f.write('\tLoaded [%s]\n' % name)
regions.setdefault(name, []).append([1, seq_len])
total_regions += 1
total_reg_len += seq_len
log_out_f.write('\tTotal Regions: %d\n' % total_regions)
log_out_f.write('\tTotal Region Length: %d\n' % total_reg_len)
ca_output = CAOutput(stdout_f=log_out_f,
misassembly_f=misassembly_f,
coords_filtered_f=open(coords_filtered_fpath, 'w'),
icarus_out_f=icarus_out_f)
log_out_f.write('Analyzing contigs...\n')
result, ref_aligns, total_indels_info, aligned_lengths, misassembled_contigs, misassemblies_in_contigs, aligned_lengths_by_contigs =\
analyze_contigs(ca_output, contigs_fpath, unaligned_fpath, unaligned_info_fpath, aligns, ref_features, reference_chromosomes, is_cyclic)
log_out_f.write('Analyzing coverage...\n')
if qconfig.show_snps:
log_out_f.write('Writing SNPs into ' + used_snps_fpath + '\n')
total_aligned_bases, indels_info = analyze_coverage(
ref_aligns, reference_chromosomes, ns_by_chromosomes, used_snps_fpath)
total_indels_info += indels_info
cov_stats = {
'SNPs': total_indels_info.mismatches,
'indels_list': total_indels_info.indels_list,
'total_aligned_bases': total_aligned_bases
}
result.update(cov_stats)
result = print_results(contigs_fpath, log_out_f, used_snps_fpath,
total_indels_info, result)
if not qconfig.space_efficient:
## outputting misassembled contigs to separate file
fasta = [(name, seq)
for name, seq in fastaparser.read_fasta(contigs_fpath)
if name in misassembled_contigs.keys()]
fastaparser.write_fasta(
join(output_dirpath,
qutils.name_from_fpath(contigs_fpath) + '.mis_contigs.fa'),
fasta)
if qconfig.is_combined_ref:
alignment_tsv_fpath = join(
output_dirpath, "alignments_" + corr_assembly_label + '.tsv')
unique_contigs_fpath = join(
output_dirpath,
qconfig.unique_contigs_fname_pattern % corr_assembly_label)
logger.debug(' ' + qutils.index_to_str(index) + 'Alignments: ' +
qutils.relpath(alignment_tsv_fpath))
used_contigs = set()
with open(unique_contigs_fpath, 'w') as unique_contigs_f:
with open(alignment_tsv_fpath, 'w') as alignment_tsv_f:
for chr_name, aligns in ref_aligns.items():
alignment_tsv_f.write(chr_name)
contigs = set([align.contig for align in aligns])
for contig in contigs:
alignment_tsv_f.write('\t' + contig)
if qconfig.is_combined_ref:
ref_name = ref_labels_by_chromosomes[chr_name]
align_by_contigs = defaultdict(int)
for align in aligns:
align_by_contigs[align.contig] += align.len2
for contig, aligned_len in align_by_contigs.items():
if contig in used_contigs:
continue
used_contigs.add(contig)
len_cov_pattern = re.compile(
r'_length_([\d\.]+)_cov_([\d\.]+)')
if len_cov_pattern.findall(contig):
contig_len = len_cov_pattern.findall(
contig)[0][0]
contig_cov = len_cov_pattern.findall(
contig)[0][1]
if aligned_len / float(contig_len) > 0.9:
unique_contigs_f.write(ref_name + '\t' +
str(aligned_len) +
'\t' + contig_cov +
'\n')
alignment_tsv_f.write('\n')
close_handlers(ca_output)
logger.info(' ' + qutils.index_to_str(index) + 'Analysis is finished.')
logger.debug('')
if not ref_aligns:
return AlignerStatus.NOT_ALIGNED, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
else:
return AlignerStatus.OK, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
def align_and_analyze(is_cyclic, index, contigs_fpath, output_dirpath, ref_fpath,
old_contigs_fpath, bed_fpath, parallel_by_chr=False, threads=1):
nucmer_output_dirpath = create_nucmer_output_dir(output_dirpath)
assembly_label = qutils.label_from_fpath(contigs_fpath)
corr_assembly_label = qutils.label_from_fpath_for_fname(contigs_fpath)
nucmer_fpath = join(nucmer_output_dirpath, corr_assembly_label)
logger.info(' ' + qutils.index_to_str(index) + assembly_label)
if not qconfig.space_efficient:
log_out_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.stdout')
log_err_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.stderr')
icarus_out_fpath = join(output_dirpath, qconfig.icarus_report_fname_pattern % corr_assembly_label)
misassembly_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.mis_contigs.info')
unaligned_info_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.unaligned.info')
else:
log_out_fpath = '/dev/null'
log_err_fpath = '/dev/null'
icarus_out_fpath = '/dev/null'
misassembly_fpath = '/dev/null'
unaligned_info_fpath = '/dev/null'
icarus_out_f = open(icarus_out_fpath, 'w')
icarus_header_cols = ['S1', 'E1', 'S2', 'E2', 'Reference', 'Contig', 'IDY', 'Ambiguous', 'Best_group']
icarus_out_f.write('\t'.join(icarus_header_cols) + '\n')
misassembly_f = open(misassembly_fpath, 'w')
if not qconfig.space_efficient:
logger.info(' ' + qutils.index_to_str(index) + 'Logging to files ' + log_out_fpath +
' and ' + os.path.basename(log_err_fpath) + '...')
else:
logger.info(' ' + qutils.index_to_str(index) + 'Logging is disabled.')
coords_fpath, coords_filtered_fpath, unaligned_fpath, show_snps_fpath, used_snps_fpath = \
get_nucmer_aux_out_fpaths(nucmer_fpath)
nucmer_status = align_contigs(nucmer_fpath, ref_fpath, contigs_fpath, old_contigs_fpath, index,
parallel_by_chr, threads, log_out_fpath, log_err_fpath)
if nucmer_status != NucmerStatus.OK:
with open(log_err_fpath, 'a') as log_err_f:
if nucmer_status == NucmerStatus.ERROR:
logger.error(' ' + qutils.index_to_str(index) +
'Failed aligning contigs ' + qutils.label_from_fpath(contigs_fpath) +
' to the reference (non-zero exit code). ' +
('Run with the --debug flag to see additional information.' if not qconfig.debug else ''))
elif nucmer_status == NucmerStatus.FAILED:
log_err_f.write(qutils.index_to_str(index) + 'Alignment failed for ' + contigs_fpath + ':' + coords_fpath + 'doesn\'t exist.\n')
logger.info(' ' + qutils.index_to_str(index) + 'Alignment failed for ' + '\'' + assembly_label + '\'.')
elif nucmer_status == NucmerStatus.NOT_ALIGNED:
log_err_f.write(qutils.index_to_str(index) + 'Nothing aligned for ' + contigs_fpath + '\n')
logger.info(' ' + qutils.index_to_str(index) + 'Nothing aligned for ' + '\'' + assembly_label + '\'.')
clean_tmp_files(nucmer_fpath)
return nucmer_status, {}, [], [], []
log_out_f = open(log_out_fpath, 'a')
# Loading the alignment files
log_out_f.write('Parsing coords...\n')
aligns = {}
coords_file = open(coords_fpath)
coords_filtered_file = open(coords_filtered_fpath, 'w')
coords_filtered_file.write(coords_file.readline())
coords_filtered_file.write(coords_file.readline())
for line in coords_file:
if line.strip() == '':
break
assert line[0] != '='
#Clear leading spaces from nucmer output
#Store nucmer lines in an array
mapping = Mapping.from_line(line)
aligns.setdefault(mapping.contig, []).append(mapping)
# Loading the reference sequences
log_out_f.write('Loading reference...\n') # TODO: move up
references = {}
ref_features = {}
for name, seq in fastaparser.read_fasta(ref_fpath):
name = name.split()[0] # no spaces in reference header
references[name] = seq
log_out_f.write('\tLoaded [%s]\n' % name)
#Loading the SNP calls
if qconfig.show_snps:
log_out_f.write('Loading SNPs...\n')
used_snps_file = None
snps = {}
if qconfig.show_snps:
prev_line = None
for line in open_gzipsafe(show_snps_fpath):
#print "$line";
line = line.split()
if not line[0].isdigit():
continue
if prev_line and line == prev_line:
continue
ref = line[10]
ctg = line[11]
pos = int(line[0]) # Kolya: python don't convert int<->str types automatically
loc = int(line[3]) # Kolya: same as above
# if (! exists $line[11]) { die "Malformed line in SNP file. Please check that show-snps has completed succesfully.\n$line\n[$line[9]][$line[10]][$line[11]]\n"; }
if pos in snps.setdefault(ref, {}).setdefault(ctg, {}):
snps.setdefault(ref, {}).setdefault(ctg, {})[pos].append(SNP(ref_pos=pos, ctg_pos=loc, ref_nucl=line[1], ctg_nucl=line[2]))
else:
snps.setdefault(ref, {}).setdefault(ctg, {})[pos] = [SNP(ref_pos=pos, ctg_pos=loc, ref_nucl=line[1], ctg_nucl=line[2])]
prev_line = line
used_snps_file = open_gzipsafe(used_snps_fpath, 'w')
# Loading the regions (if any)
regions = {}
ref_lens = {}
total_reg_len = 0
total_regions = 0
# # TODO: gff
# log_out_f.write('Loading regions...\n')
# log_out_f.write('\tNo regions given, using whole reference.\n')
for name, seq in references.items():
regions.setdefault(name, []).append([1, len(seq)])
ref_lens[name] = len(seq)
total_regions += 1
total_reg_len += ref_lens[name]
log_out_f.write('\tTotal Regions: %d\n' % total_regions)
log_out_f.write('\tTotal Region Length: %d\n' % total_reg_len)
ca_output = CAOutput(stdout_f=log_out_f, misassembly_f=misassembly_f, coords_filtered_f=coords_filtered_file,
used_snps_f=used_snps_file, icarus_out_f=icarus_out_f)
log_out_f.write('Analyzing contigs...\n')
result, ref_aligns, total_indels_info, aligned_lengths, misassembled_contigs, misassemblies_in_contigs, aligned_lengths_by_contigs =\
analyze_contigs(ca_output, contigs_fpath, unaligned_fpath, unaligned_info_fpath, aligns, ref_features, ref_lens, is_cyclic)
log_out_f.write('Analyzing coverage...\n')
if qconfig.show_snps:
log_out_f.write('Writing SNPs into ' + used_snps_fpath + '\n')
result.update(analyze_coverage(ca_output, regions, ref_aligns, ref_features, snps, total_indels_info))
result = print_results(contigs_fpath, log_out_f, used_snps_fpath, total_indels_info, result)
if not qconfig.space_efficient:
## outputting misassembled contigs to separate file
fasta = [(name, seq) for name, seq in fastaparser.read_fasta(contigs_fpath)
if name in misassembled_contigs.keys()]
fastaparser.write_fasta(join(output_dirpath, qutils.name_from_fpath(contigs_fpath) + '.mis_contigs.fa'), fasta)
if qconfig.is_combined_ref:
alignment_tsv_fpath = join(output_dirpath, "alignments_" + corr_assembly_label + '.tsv')
unique_contigs_fpath = join(output_dirpath, qconfig.unique_contigs_fname_pattern % corr_assembly_label)
logger.debug(' ' + qutils.index_to_str(index) + 'Alignments: ' + qutils.relpath(alignment_tsv_fpath))
used_contigs = set()
with open(unique_contigs_fpath, 'w') as unique_contigs_f:
with open(alignment_tsv_fpath, 'w') as alignment_tsv_f:
for chr_name, aligns in ref_aligns.items():
alignment_tsv_f.write(chr_name)
contigs = set([align.contig for align in aligns])
for contig in contigs:
alignment_tsv_f.write('\t' + contig)
if qconfig.is_combined_ref:
ref_name = ref_labels_by_chromosomes[chr_name]
align_by_contigs = defaultdict(int)
for align in aligns:
align_by_contigs[align.contig] += align.len2
for contig, aligned_len in align_by_contigs.items():
if contig in used_contigs:
continue
used_contigs.add(contig)
len_cov_pattern = re.compile(r'_length_([\d\.]+)_cov_([\d\.]+)')
if len_cov_pattern.findall(contig):
contig_len = len_cov_pattern.findall(contig)[0][0]
contig_cov = len_cov_pattern.findall(contig)[0][1]
if aligned_len / float(contig_len) > 0.9:
unique_contigs_f.write(ref_name + '\t' + str(aligned_len) + '\t' + contig_cov + '\n')
alignment_tsv_f.write('\n')
close_handlers(ca_output)
logger.info(' ' + qutils.index_to_str(index) + 'Analysis is finished.')
logger.debug('')
clean_tmp_files(nucmer_fpath)
if not qconfig.no_gzip:
compress_nucmer_output(logger, nucmer_fpath)
if not ref_aligns:
return NucmerStatus.NOT_ALIGNED, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
else:
return NucmerStatus.OK, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
def align_and_analyze(is_cyclic, index, contigs_fpath, output_dirpath, ref_fpath,
old_contigs_fpath, bed_fpath, parallel_by_chr=False, threads=1):
nucmer_output_dirpath = create_nucmer_output_dir(output_dirpath)
assembly_label = qutils.label_from_fpath(contigs_fpath)
corr_assembly_label = qutils.label_from_fpath_for_fname(contigs_fpath)
nucmer_fpath = join(nucmer_output_dirpath, corr_assembly_label)
logger.info(' ' + qutils.index_to_str(index) + assembly_label)
if not qconfig.space_efficient:
log_out_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.stdout')
log_err_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.stderr')
icarus_out_fpath = join(output_dirpath, qconfig.icarus_report_fname_pattern % corr_assembly_label)
misassembly_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.mis_contigs.info')
unaligned_info_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.unaligned.info')
else:
log_out_fpath = '/dev/null'
log_err_fpath = '/dev/null'
icarus_out_fpath = '/dev/null'
misassembly_fpath = '/dev/null'
unaligned_info_fpath = '/dev/null'
icarus_out_f = open(icarus_out_fpath, 'w')
icarus_header_cols = ['S1', 'E1', 'S2', 'E2', 'Reference', 'Contig', 'IDY', 'Ambiguous', 'Best_group']
icarus_out_f.write('\t'.join(icarus_header_cols) + '\n')
misassembly_f = open(misassembly_fpath, 'w')
if not qconfig.space_efficient:
logger.info(' ' + qutils.index_to_str(index) + 'Logging to files ' + log_out_fpath +
' and ' + os.path.basename(log_err_fpath) + '...')
else:
logger.info(' ' + qutils.index_to_str(index) + 'Logging is disabled.')
coords_fpath, coords_filtered_fpath, unaligned_fpath, show_snps_fpath, used_snps_fpath = \
get_nucmer_aux_out_fpaths(nucmer_fpath)
nucmer_status = align_contigs(nucmer_fpath, ref_fpath, contigs_fpath, old_contigs_fpath, index,
parallel_by_chr, threads, log_out_fpath, log_err_fpath)
if nucmer_status != NucmerStatus.OK:
with open(log_err_fpath, 'a') as log_err_f:
if nucmer_status == NucmerStatus.ERROR:
logger.error(' ' + qutils.index_to_str(index) +
'Failed aligning contigs ' + qutils.label_from_fpath(contigs_fpath) +
' to the reference (non-zero exit code). ' +
('Run with the --debug flag to see additional information.' if not qconfig.debug else ''))
elif nucmer_status == NucmerStatus.FAILED:
log_err_f.write(qutils.index_to_str(index) + 'Alignment failed for ' + contigs_fpath + ':' + coords_fpath + 'doesn\'t exist.\n')
logger.info(' ' + qutils.index_to_str(index) + 'Alignment failed for ' + '\'' + assembly_label + '\'.')
elif nucmer_status == NucmerStatus.NOT_ALIGNED:
log_err_f.write(qutils.index_to_str(index) + 'Nothing aligned for ' + contigs_fpath + '\n')
logger.info(' ' + qutils.index_to_str(index) + 'Nothing aligned for ' + '\'' + assembly_label + '\'.')
clean_tmp_files(nucmer_fpath)
return nucmer_status, {}, [], [], []
log_out_f = open(log_out_fpath, 'a')
# Loading the alignment files
log_out_f.write('Parsing coords...\n')
aligns = {}
coords_file = open(coords_fpath)
coords_filtered_file = open(coords_filtered_fpath, 'w')
coords_filtered_file.write(coords_file.readline())
coords_filtered_file.write(coords_file.readline())
for line in coords_file:
if line.strip() == '':
break
assert line[0] != '='
#Clear leading spaces from nucmer output
#Store nucmer lines in an array
mapping = Mapping.from_line(line)
aligns.setdefault(mapping.contig, []).append(mapping)
# Loading the reference sequences
log_out_f.write('Loading reference...\n') # TODO: move up
ref_lens = {}
ref_features = {}
for name, seq in fastaparser.read_fasta(ref_fpath):
name = name.split()[0] # no spaces in reference header
ref_lens[name] = len(seq)
log_out_f.write('\tLoaded [%s]\n' % name)
#Loading the SNP calls
if qconfig.show_snps:
log_out_f.write('Loading SNPs...\n')
used_snps_file = None
snps = {}
if qconfig.show_snps:
prev_line = None
for line in open_gzipsafe(show_snps_fpath):
#print "$line";
line = line.split()
if not line[0].isdigit():
continue
if prev_line and line == prev_line:
continue
ref = line[10]
ctg = line[11]
pos = int(line[0]) # Kolya: python don't convert int<->str types automatically
loc = int(line[3]) # Kolya: same as above
# if (! exists $line[11]) { die "Malformed line in SNP file. Please check that show-snps has completed succesfully.\n$line\n[$line[9]][$line[10]][$line[11]]\n"; }
if pos in snps.setdefault(ref, {}).setdefault(ctg, {}):
snps.setdefault(ref, {}).setdefault(ctg, {})[pos].append(SNP(ref_pos=pos, ctg_pos=loc, ref_nucl=line[1], ctg_nucl=line[2]))
else:
snps.setdefault(ref, {}).setdefault(ctg, {})[pos] = [SNP(ref_pos=pos, ctg_pos=loc, ref_nucl=line[1], ctg_nucl=line[2])]
prev_line = line
used_snps_file = open_gzipsafe(used_snps_fpath, 'w')
# Loading the regions (if any)
regions = {}
total_reg_len = 0
total_regions = 0
# # TODO: gff
# log_out_f.write('Loading regions...\n')
# log_out_f.write('\tNo regions given, using whole reference.\n')
for name, seq_len in ref_lens.items():
regions.setdefault(name, []).append([1, seq_len])
total_regions += 1
total_reg_len += seq_len
log_out_f.write('\tTotal Regions: %d\n' % total_regions)
log_out_f.write('\tTotal Region Length: %d\n' % total_reg_len)
ca_output = CAOutput(stdout_f=log_out_f, misassembly_f=misassembly_f, coords_filtered_f=coords_filtered_file,
used_snps_f=used_snps_file, icarus_out_f=icarus_out_f)
log_out_f.write('Analyzing contigs...\n')
result, ref_aligns, total_indels_info, aligned_lengths, misassembled_contigs, misassemblies_in_contigs, aligned_lengths_by_contigs =\
analyze_contigs(ca_output, contigs_fpath, unaligned_fpath, unaligned_info_fpath, aligns, ref_features, ref_lens, is_cyclic)
# if qconfig.large_genome:
# log_out_f.write('Analyzing large blocks...\n')
# large_misassembly_fpath = add_suffix(misassembly_fpath, 'large_blocks') if not qconfig.space_efficient else '/dev/null'
# ca_large_output = CAOutput(stdout_f=log_out_f, misassembly_f=open(large_misassembly_fpath, 'w'),
# coords_filtered_f=coords_filtered_file, used_snps_f=open('/dev/null', 'w'), icarus_out_f=open('/dev/null', 'w'))
# min_alignment, extensive_mis_threshold = qconfig.min_alignment, qconfig.extensive_misassembly_threshold
# qconfig.min_alignment, qconfig.extensive_misassembly_threshold = qconfig.LARGE_MIN_ALIGNMENT, qconfig.LARGE_EXTENSIVE_MIS_THRESHOLD
# result.update(analyze_contigs(ca_large_output, contigs_fpath, '/dev/null', '/dev/null',
# aligns, ref_features, ref_lens, is_cyclic, large_misassemblies_search=True)[0])
# qconfig.min_alignment, qconfig.extensive_misassembly_threshold = min_alignment, extensive_mis_threshold
log_out_f.write('Analyzing coverage...\n')
if qconfig.show_snps:
log_out_f.write('Writing SNPs into ' + used_snps_fpath + '\n')
result.update(analyze_coverage(ca_output, regions, ref_aligns, ref_features, snps, total_indels_info))
result = print_results(contigs_fpath, log_out_f, used_snps_fpath, total_indels_info, result)
if not qconfig.space_efficient:
## outputting misassembled contigs to separate file
fasta = [(name, seq) for name, seq in fastaparser.read_fasta(contigs_fpath)
if name in misassembled_contigs.keys()]
fastaparser.write_fasta(join(output_dirpath, qutils.name_from_fpath(contigs_fpath) + '.mis_contigs.fa'), fasta)
if qconfig.is_combined_ref:
alignment_tsv_fpath = join(output_dirpath, "alignments_" + corr_assembly_label + '.tsv')
unique_contigs_fpath = join(output_dirpath, qconfig.unique_contigs_fname_pattern % corr_assembly_label)
logger.debug(' ' + qutils.index_to_str(index) + 'Alignments: ' + qutils.relpath(alignment_tsv_fpath))
used_contigs = set()
with open(unique_contigs_fpath, 'w') as unique_contigs_f:
with open(alignment_tsv_fpath, 'w') as alignment_tsv_f:
for chr_name, aligns in ref_aligns.items():
alignment_tsv_f.write(chr_name)
contigs = set([align.contig for align in aligns])
for contig in contigs:
alignment_tsv_f.write('\t' + contig)
if qconfig.is_combined_ref:
ref_name = ref_labels_by_chromosomes[chr_name]
align_by_contigs = defaultdict(int)
for align in aligns:
align_by_contigs[align.contig] += align.len2
for contig, aligned_len in align_by_contigs.items():
if contig in used_contigs:
continue
used_contigs.add(contig)
len_cov_pattern = re.compile(r'_length_([\d\.]+)_cov_([\d\.]+)')
if len_cov_pattern.findall(contig):
contig_len = len_cov_pattern.findall(contig)[0][0]
contig_cov = len_cov_pattern.findall(contig)[0][1]
if aligned_len / float(contig_len) > 0.9:
unique_contigs_f.write(ref_name + '\t' + str(aligned_len) + '\t' + contig_cov + '\n')
alignment_tsv_f.write('\n')
close_handlers(ca_output)
logger.info(' ' + qutils.index_to_str(index) + 'Analysis is finished.')
logger.debug('')
clean_tmp_files(nucmer_fpath)
if not qconfig.no_gzip:
compress_nucmer_output(logger, nucmer_fpath)
if not ref_aligns:
return NucmerStatus.NOT_ALIGNED, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
else:
return NucmerStatus.OK, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
def align_and_analyze(is_cyclic, index, contigs_fpath, output_dirpath, ref_fpath,
reference_chromosomes, ns_by_chromosomes, old_contigs_fpath, bed_fpath, threads=1):
tmp_output_dirpath = create_minimap_output_dir(output_dirpath)
assembly_label = qutils.label_from_fpath(contigs_fpath)
corr_assembly_label = qutils.label_from_fpath_for_fname(contigs_fpath)
out_basename = join(tmp_output_dirpath, corr_assembly_label)
logger.info(' ' + qutils.index_to_str(index) + assembly_label)
if not qconfig.space_efficient:
log_out_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.stdout')
log_err_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.stderr')
icarus_out_fpath = join(output_dirpath, qconfig.icarus_report_fname_pattern % corr_assembly_label)
misassembly_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.mis_contigs.info')
unaligned_info_fpath = join(output_dirpath, qconfig.contig_report_fname_pattern % corr_assembly_label + '.unaligned.info')
else:
log_out_fpath = '/dev/null'
log_err_fpath = '/dev/null'
icarus_out_fpath = '/dev/null'
misassembly_fpath = '/dev/null'
unaligned_info_fpath = '/dev/null'
icarus_out_f = open(icarus_out_fpath, 'w')
icarus_header_cols = ['S1', 'E1', 'S2', 'E2', 'Reference', 'Contig', 'IDY', 'Ambiguous', 'Best_group']
icarus_out_f.write('\t'.join(icarus_header_cols) + '\n')
misassembly_f = open(misassembly_fpath, 'w')
if not qconfig.space_efficient:
logger.info(' ' + qutils.index_to_str(index) + 'Logging to files ' + log_out_fpath +
' and ' + os.path.basename(log_err_fpath) + '...')
else:
logger.info(' ' + qutils.index_to_str(index) + 'Logging is disabled.')
coords_fpath, coords_filtered_fpath, unaligned_fpath, used_snps_fpath = get_aux_out_fpaths(out_basename)
status = align_contigs(coords_fpath, out_basename, ref_fpath, contigs_fpath, old_contigs_fpath, index, threads,
log_out_fpath, log_err_fpath)
if status != AlignerStatus.OK:
with open(log_err_fpath, 'a') as log_err_f:
if status == AlignerStatus.ERROR:
logger.error(' ' + qutils.index_to_str(index) +
'Failed aligning contigs ' + qutils.label_from_fpath(contigs_fpath) +
' to the reference (non-zero exit code). ' +
('Run with the --debug flag to see additional information.' if not qconfig.debug else ''))
elif status == AlignerStatus.FAILED:
log_err_f.write(qutils.index_to_str(index) + 'Alignment failed for ' + contigs_fpath + ':' + coords_fpath + 'doesn\'t exist.\n')
logger.info(' ' + qutils.index_to_str(index) + 'Alignment failed for ' + '\'' + assembly_label + '\'.')
elif status == AlignerStatus.NOT_ALIGNED:
log_err_f.write(qutils.index_to_str(index) + 'Nothing aligned for ' + contigs_fpath + '\n')
logger.info(' ' + qutils.index_to_str(index) + 'Nothing aligned for ' + '\'' + assembly_label + '\'.')
return status, {}, [], [], []
log_out_f = open(log_out_fpath, 'a')
# Loading the alignment files
log_out_f.write('Parsing coords...\n')
aligns = {}
with open(coords_fpath) as coords_file:
for line in coords_file:
mapping = Mapping.from_line(line)
aligns.setdefault(mapping.contig, []).append(mapping)
# Loading the reference sequences
log_out_f.write('Loading reference...\n') # TODO: move up
ref_features = {}
# Loading the regions (if any)
regions = {}
total_reg_len = 0
total_regions = 0
# # TODO: gff
# log_out_f.write('Loading regions...\n')
# log_out_f.write('\tNo regions given, using whole reference.\n')
for name, seq_len in reference_chromosomes.items():
log_out_f.write('\tLoaded [%s]\n' % name)
regions.setdefault(name, []).append([1, seq_len])
total_regions += 1
total_reg_len += seq_len
log_out_f.write('\tTotal Regions: %d\n' % total_regions)
log_out_f.write('\tTotal Region Length: %d\n' % total_reg_len)
ca_output = CAOutput(stdout_f=log_out_f, misassembly_f=misassembly_f, coords_filtered_f=open(coords_filtered_fpath, 'w'),
icarus_out_f=icarus_out_f)
log_out_f.write('Analyzing contigs...\n')
result, ref_aligns, total_indels_info, aligned_lengths, misassembled_contigs, misassemblies_in_contigs, aligned_lengths_by_contigs =\
analyze_contigs(ca_output, contigs_fpath, unaligned_fpath, unaligned_info_fpath, aligns, ref_features, reference_chromosomes, is_cyclic)
log_out_f.write('Analyzing coverage...\n')
if qconfig.show_snps:
log_out_f.write('Writing SNPs into ' + used_snps_fpath + '\n')
total_aligned_bases, indels_info = analyze_coverage(ref_aligns, reference_chromosomes, ns_by_chromosomes, used_snps_fpath)
total_indels_info += indels_info
cov_stats = {'SNPs': total_indels_info.mismatches, 'indels_list': total_indels_info.indels_list, 'total_aligned_bases': total_aligned_bases}
result.update(cov_stats)
result = print_results(contigs_fpath, log_out_f, used_snps_fpath, total_indels_info, result)
if not qconfig.space_efficient:
## outputting misassembled contigs to separate file
fasta = [(name, seq) for name, seq in fastaparser.read_fasta(contigs_fpath)
if name in misassembled_contigs.keys()]
fastaparser.write_fasta(join(output_dirpath, qutils.name_from_fpath(contigs_fpath) + '.mis_contigs.fa'), fasta)
if qconfig.is_combined_ref:
alignment_tsv_fpath = join(output_dirpath, "alignments_" + corr_assembly_label + '.tsv')
unique_contigs_fpath = join(output_dirpath, qconfig.unique_contigs_fname_pattern % corr_assembly_label)
logger.debug(' ' + qutils.index_to_str(index) + 'Alignments: ' + qutils.relpath(alignment_tsv_fpath))
used_contigs = set()
with open(unique_contigs_fpath, 'w') as unique_contigs_f:
with open(alignment_tsv_fpath, 'w') as alignment_tsv_f:
for chr_name, aligns in ref_aligns.items():
alignment_tsv_f.write(chr_name)
contigs = set([align.contig for align in aligns])
for contig in contigs:
alignment_tsv_f.write('\t' + contig)
if qconfig.is_combined_ref:
ref_name = ref_labels_by_chromosomes[chr_name]
align_by_contigs = defaultdict(int)
for align in aligns:
align_by_contigs[align.contig] += align.len2
for contig, aligned_len in align_by_contigs.items():
if contig in used_contigs:
continue
used_contigs.add(contig)
len_cov_pattern = re.compile(r'_length_([\d\.]+)_cov_([\d\.]+)')
if len_cov_pattern.findall(contig):
contig_len = len_cov_pattern.findall(contig)[0][0]
contig_cov = len_cov_pattern.findall(contig)[0][1]
if aligned_len / float(contig_len) > 0.9:
unique_contigs_f.write(ref_name + '\t' + str(aligned_len) + '\t' + contig_cov + '\n')
alignment_tsv_f.write('\n')
close_handlers(ca_output)
logger.info(' ' + qutils.index_to_str(index) + 'Analysis is finished.')
logger.debug('')
if not ref_aligns:
return AlignerStatus.NOT_ALIGNED, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs
else:
return AlignerStatus.OK, result, aligned_lengths, misassemblies_in_contigs, aligned_lengths_by_contigs