def _get_from_srst2_argannot(self, outprefix):
srst2_version = '0.2.0'
srst2_url = 'https://github.com/katholt/srst2/raw/v' + srst2_version + '/data/ARGannot.r1.fasta'
srst2_fa = outprefix + '.original.fa'
command = 'wget -O ' + srst2_fa + ' ' + srst2_url
common.syscall(command, verbose=True)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
f_out_meta = pyfastaq.utils.open_file_write(final_tsv)
seq_reader = pyfastaq.sequences.file_reader(srst2_fa)
for seq in seq_reader:
original_id = seq.id
name, extra = seq.id.split()
cluster_id, cluster_name, allele_name, allele_id = name.split('__')
seq.id = cluster_name + '.' + name
print(seq, file=f_out_fa)
print(seq.id, 1, 0, '.', '.', 'Original name: ' + original_id, sep='\t', file=f_out_meta)
pyfastaq.utils.close(f_out_fa)
pyfastaq.utils.close(f_out_meta)
if not self.debug:
os.unlink(srst2_fa)
print('Finished downloading and converting data. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"SRST2: Rapid genomic surveillance for public health and hospital microbiology labs",\nInouye et al 2014, Genome Medicine, PMID: 25422674\n')
print(argannot_ref)
print('and in your methods say that the ARG-ANNOT sequences were used from version', srst2_version, 'of SRST2.')
def _gap_fill_with_gapfiller(self):
if not os.path.exists(self.scaffolder_scaffolds):
raise Error('Cannot gap fill because scaffolds file not found: ' + self.scaffolder_scaffolds)
cwd = os.getcwd()
if self.gapfiller_exe is None or not self._has_gaps_to_fill(self.scaffolder_scaffolds):
self._rename_scaffolds(self.scaffolder_scaffolds, self.gapfilled_scaffolds)
return
try:
os.mkdir(self.gapfill_dir)
except:
raise Error('Error mkdir '+ self.gapfill_dir)
os.chdir(self.gapfill_dir)
lib_file = 'lib'
with open(lib_file, 'w') as f:
print('LIB', 'bwa', self.reads1, self.reads2, self.reads_insert, self.sspace_sd, 'FR', file=f)
cmd = ' '.join([
'perl', self.gapfiller_exe,
'-l', lib_file,
'-s', self.scaffolder_scaffolds
])
gapfilled_scaffolds = os.path.join(self.gapfill_dir, 'standard_output', 'standard_output.gapfilled.final.fa')
common.syscall(cmd, verbose=self.verbose)
self._rename_scaffolds(gapfilled_scaffolds, self.gapfilled_scaffolds)
os.chdir(cwd)
def run(self):
tmpdir = tempfile.mkdtemp(prefix='tmp.run_cd-hit.', dir=os.getcwd())
cdhit_fasta = os.path.join(tmpdir, 'cdhit')
cluster_info_outfile = cdhit_fasta + '.bak.clstr'
infile_renamed = os.path.join(tmpdir, 'input.renamed.fa')
# cd-hit truncates all names to 19 bases in its report of which
# sequences belong to which clusters. So need to temporarily
# rename all sequences to have short enough names. Grrr.
new_to_old_name = self._enumerate_fasta(self.infile, infile_renamed)
cmd = ' '.join([
'cd-hit-est',
'-i', infile_renamed,
'-o', cdhit_fasta,
'-c', str(self.seq_identity_threshold),
'-T', str(self.threads),
'-s', str(self.length_diff_cutoff),
'-bak 1',
])
common.syscall(cmd, verbose=self.verbose)
cluster_representatives = self._get_ids(cdhit_fasta)
clusters, cluster_rep_to_cluster = self._parse_cluster_info_file(cluster_info_outfile, new_to_old_name, cluster_representatives)
self._rename_fasta(cdhit_fasta, self.outfile, cluster_rep_to_cluster)
shutil.rmtree(tmpdir)
return clusters
def _scaffold_with_sspace(self):
if not os.path.exists(self.assembly_contigs):
raise Error('Cannot scaffold because contigs file not found: ' + self.assembly_contigs)
try:
os.mkdir(self.scaffold_dir)
except:
raise Error('Error mkdir '+ self.scaffold_dir)
cwd = os.getcwd()
if self.sspace_exe is None:
os.chdir(self.assembly_dir)
os.symlink(os.path.basename(self.assembly_contigs), os.path.basename(self.scaffolder_scaffolds))
os.chdir(cwd)
return
os.chdir(self.scaffold_dir)
lib_file = 'lib'
with open(lib_file, 'w') as f:
print('LIB', self.reads1, self.reads2, int(self.reads_insert), self.sspace_sd, 'FR', file=f)
cmd = ' '.join([
'perl', self.sspace_exe,
'-k', str(self.sspace_k),
'-l', lib_file,
'-s', self.assembly_contigs
])
sspace_scaffolds = os.path.abspath('standard_output.final.scaffolds.fasta')
common.syscall(cmd, verbose=self.verbose)
os.chdir(self.assembly_dir)
os.symlink(os.path.relpath(sspace_scaffolds), os.path.basename(self.scaffolder_scaffolds))
os.chdir(cwd)
def _gap_fill_with_gapfiller(self):
if not os.path.exists(self.scaffolder_scaffolds):
raise Error('Cannot gap fill because scaffolds file not found: ' + self.scaffolder_scaffolds)
cwd = os.getcwd()
if self.extern_progs.exe('gapfiller') is None or not self._has_gaps_to_fill(self.scaffolder_scaffolds):
self._rename_scaffolds(self.scaffolder_scaffolds, self.gapfilled_scaffolds, self.scaff_name_prefix)
return
try:
os.mkdir(self.gapfill_dir)
except:
raise Error('Error mkdir '+ self.gapfill_dir)
os.chdir(self.gapfill_dir)
lib_file = 'lib'
with open(lib_file, 'w') as f:
print('LIB', 'bwa', self.reads1, self.reads2, self.reads_insert, self.sspace_sd, 'FR', file=f)
cmd = ' '.join([
'perl', self.extern_progs.exe('gapfiller'),
'-l', lib_file,
'-s', self.scaffolder_scaffolds
])
gapfilled_scaffolds = os.path.join(self.gapfill_dir, 'standard_output', 'standard_output.gapfilled.final.fa')
common.syscall(cmd, verbose=True, verbose_filehandle=self.log_fh)
self._rename_scaffolds(gapfilled_scaffolds, self.gapfilled_scaffolds, self.scaff_name_prefix)
os.chdir(cwd)
if self.clean:
print('Deleting GapFiller directory', self.gapfill_dir, file=self.log_fh)
shutil.rmtree(self.gapfill_dir)
def _sketch(self, infile, individual):
cmd_list = [self.extern_progs.exe("mash"), "sketch", "-s 100000"]
if individual:
cmd_list.append("-i")
cmd_list.append(infile)
common.syscall(" ".join(cmd_list), verbose=True, verbose_filehandle=self.log_fh)
def _get_from_argannot(self, outprefix):
outprefix = os.path.abspath(outprefix)
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'arg-annot-database_doc.zip'
common.download_file(
'http://www.mediterranee-infection.com/arkotheque/client/ihumed/_depot_arko/articles/304/arg-annot-database_doc.zip',
zipfile,
max_attempts=self.max_download_attempts,
sleep_time=self.sleep_time,
verbose=True)
common.syscall('unzip ' + zipfile)
os.chdir(current_dir)
print('Extracted files.')
genes_file = os.path.join(tmpdir, 'Database Nt Sequences File.txt')
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
seq_reader = pyfastaq.sequences.file_reader(genes_file)
f_out_tsv = pyfastaq.utils.open_file_write(final_tsv)
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
for seq in seq_reader:
original_id = seq.id
seq.id = re.sub(r'\((.*)\)', r'\1.', seq.id.split()[0])
print(seq, file=f_out_fa)
print(seq.id,
'1',
'0',
'.',
'.',
'Original name: ' + original_id,
sep='\t',
file=f_out_tsv)
pyfastaq.utils.close(f_out_tsv)
pyfastaq.utils.close(f_out_fa)
if not self.debug:
shutil.rmtree(tmpdir)
print('Finished. Final files are:',
final_fasta,
final_tsv,
sep='\n\t',
end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv,
'output_directory\n')
print('If you use this downloaded data, please cite:')
print(argannot_ref)
def _get_from_resfinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'resfinder.zip'
cmd = 'curl -X POST --data "folder=resfinder&filename=resfinder.zip" -o ' + zipfile + ' https://cge.cbs.dtu.dk/cge/download_data.php'
print('Downloading data with:', cmd, sep='\n')
common.syscall(cmd)
common.syscall('unzip ' + zipfile)
print('Combining downloaded fasta files...')
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
used_names = {}
for filename in os.listdir():
if filename.endswith('.fsa'):
print(' ', filename)
file_reader = pyfastaq.sequences.file_reader(filename)
for seq in file_reader:
try:
prefix, suffix = seq.id.split('_', maxsplit=1)
description = 'Original name: ' + seq.id
seq.id = prefix + '.' + suffix
except:
description = '.'
# names are not unique across the files
if seq.id in used_names:
used_names[seq.id] += 1
seq.id += '_' + str(used_names[seq.id])
else:
used_names[seq.id] = 1
print(seq, file=fout_fa)
print(seq.id, '1', '0', '.', '.', description, sep='\t', file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print('\nFinished combining files\n')
os.chdir(current_dir)
if not self.debug:
shutil.rmtree(tmpdir)
print('Finished. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"Identification of acquired antimicrobial resistance genes", Zankari et al 2012, PMID: 22782487\n')
def _get_from_resfinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'resfinder.zip'
cmd = 'curl -X POST --data "folder=resfinder&filename=resfinder.zip" -o ' + zipfile + ' https://cge.cbs.dtu.dk/cge/download_data.php'
print('Downloading data with:', cmd, sep='\n')
common.syscall(cmd)
common.syscall('unzip ' + zipfile)
print('Combining downloaded fasta files...')
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
used_names = {}
for filename in os.listdir():
if filename.endswith('.fsa'):
print(' ', filename)
file_reader = pyfastaq.sequences.file_reader(filename)
for seq in file_reader:
try:
prefix, suffix = seq.id.split('_', maxsplit=1)
description = 'Original name: ' + seq.id
seq.id = prefix + '.' + suffix
except:
description = '.'
# names are not unique across the files
if seq.id in used_names:
used_names[seq.id] += 1
seq.id += '_' + str(used_names[seq.id])
else:
used_names[seq.id] = 1
print(seq, file=fout_fa)
print(seq.id, '1', '0', '.', '.', description, sep='\t', file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print('\nFinished combining files\n')
os.chdir(current_dir)
if not self.debug:
shutil.rmtree(tmpdir)
print('Finished. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"Identification of acquired antimicrobial resistance genes", Zankari et al 2012, PMID: 22782487\n')
def _get_from_virulencefinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
if self.version == 'old':
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'virulencefinder.zip'
cmd = 'curl -X POST --data "folder=virulencefinder&filename=virulencefinder.zip" -o ' + zipfile + ' https://cge.cbs.dtu.dk/cge/download_data.php'
print('Downloading data with:', cmd, sep='\n')
common.syscall(cmd)
common.syscall('unzip ' + zipfile)
else:
RefGenesGetter._get_genetic_epi_database_from_bitbucket('virulencefinder', tmpdir, git_commit=self.version)
os.chdir(tmpdir)
print('Combining downloaded fasta files...')
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
name_count = {}
for filename in os.listdir(tmpdir):
if filename.endswith('.fsa'):
print(' ', filename)
fix_file = os.path.join(tmpdir, filename + '.fix.fsa')
RefGenesGetter._fix_virulencefinder_fasta_file(os.path.join(tmpdir, filename), fix_file)
file_reader = pyfastaq.sequences.file_reader(fix_file)
for seq in file_reader:
original_id = seq.id
seq.id = seq.id.replace('_', '.', 1)
seq.id = seq.id.replace(' ', '_')
if seq.id in name_count:
name_count[seq.id] += 1
seq.id = seq.id + '.' + str(name_count[seq.id])
else:
name_count[seq.id] = 1
print(seq, file=fout_fa)
print(seq.id, '0', '0', '.', '.', 'Original name was ' + original_id, sep='\t', file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print('\nFinished combining files\n')
os.chdir(current_dir)
if not self.debug:
common.rmtree(tmpdir)
print('Finished. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"Real-time whole-genome sequencing for routine typing, surveillance, and outbreak detection of verotoxigenic Escherichia coli", Joensen al 2014, PMID: 24574290\n')
def run(self):
tmpdir = tempfile.mkdtemp(prefix='tmp.run_cd-hit.', dir=os.getcwd())
cdhit_fasta = os.path.join(tmpdir, 'cdhit')
cluster_info_outfile = cdhit_fasta + '.bak.clstr'
cmd = self.get_run_cmd(cdhit_fasta)
common.syscall(cmd, verbose=self.verbose)
clusters = self._get_clusters_from_bak_file(cluster_info_outfile, self.min_cluster_number)
common.rmtree(tmpdir)
return clusters
def _assemble_with_velvet(self):
# map reads to reference gene to make BAM input to velvet columbus
mapping.run_bowtie2(
self.reads1,
self.reads2,
self.gene_fa,
self.gene_bam[:-4],
threads=self.threads,
sort=True,
samtools=self.samtools_exe,
bowtie2=self.bowtie2_exe,
bowtie2_preset=self.bowtie2_preset,
verbose=self.verbose,
)
cmd = ' '.join([
self.velveth,
self.assembler_dir,
str(self.assembly_kmer),
'-reference', self.gene_fa,
'-shortPaired -bam', self.gene_bam[:-4] + '.unsorted.bam'
])
cwd = os.getcwd()
os.chdir(self.assembly_dir)
velvet_contigs = os.path.join(os.path.split(self.assembler_dir)[1], 'contigs.fa')
self.velveth_ok, err = common.syscall(cmd, verbose=self.verbose, allow_fail=True)
if not self.velveth_ok:
with open('velveth_errors', 'w') as f:
print(err, file=f)
f.close()
self.status_flag.add('assembly_fail')
os.chdir(cwd)
return
cmd = ' '.join([
self.velvetg,
self.assembler_dir,
'-ins_length', str(int(self.reads_insert)),
'-scaffolding no',
'-exp_cov auto',
'-very_clean yes',
'-cov_cutoff auto',
])
self.assembled_ok, err = common.syscall(cmd, verbose=self.verbose, allow_fail=True)
if self.assembled_ok:
os.symlink(velvet_contigs, os.path.basename(self.assembly_contigs))
else:
with open('velvetg_errors', 'w') as f:
print(err, file=f)
f.close()
self.status_flag.add('assembly_fail')
os.chdir(cwd)
def _get_from_plasmidfinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + ".fa"
final_tsv = outprefix + ".tsv"
tmpdir = outprefix + ".tmp.download"
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error("Error mkdir/chdir " + tmpdir)
zipfile = "plasmidfinder.zip"
cmd = (
'curl -X POST --data "folder=plasmidfinder&filename=plasmidfinder.zip" -o '
+ zipfile
+ " https://cge.cbs.dtu.dk/cge/download_data.php"
)
print("Downloading data with:", cmd, sep="\n")
common.syscall(cmd)
common.syscall("unzip " + zipfile)
print("Combining downloaded fasta files...")
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
name_count = {}
for filename in os.listdir(tmpdir):
if filename.endswith(".fsa"):
print(" ", filename)
file_reader = pyfastaq.sequences.file_reader(os.path.join(tmpdir, filename))
for seq in file_reader:
original_id = seq.id
seq.id = seq.id.replace("_", ".", 1)
if seq.id in name_count:
name_count[seq.id] += 1
seq.id = seq.id + "." + str(name_count[seq.id])
else:
name_count[seq.id] = 1
print(seq, file=fout_fa)
print(seq.id, "0", "0", ".", ".", "Original name was " + original_id, sep="\t", file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print("\nFinished combining files\n")
os.chdir(current_dir)
shutil.rmtree(tmpdir)
print("Finished. Final files are:", final_fasta, final_tsv, sep="\n\t", end="\n\n")
print("You can use them with ARIBA like this:")
print("ariba prepareref -f", final_fasta, "-m", final_tsv, "output_directory\n")
print("If you use this downloaded data, please cite:")
print(
'"PlasmidFinder and pMLST: in silico detection and typing of plasmids", Carattoli et al 2014, PMID: 24777092\n'
)
def _get_genetic_epi_database_from_bitbucket(cls, db_name, outdir, git_commit=None):
assert db_name in {'plasmidfinder', 'resfinder', 'virulencefinder'}
cmd = 'git clone ' + 'https://bitbucket.org/genomicepidemiology/' + db_name + '_db.git ' + outdir
common.syscall(cmd)
if git_commit is not None:
common.syscall('cd ' + outdir + ' && git checkout ' + git_commit)
print('Using this git commit for ' + db_name + ' database:')
subprocess.check_call('cd ' + outdir + ' && git log -n 1', shell=True)
def _run_cdhit_est_2d(reference, reads, outfile, cdhitest2d, verbose=False, verbose_fh=None):
cmd = ' '.join([
cdhitest2d,
'-i', reference,
'-i2', reads,
'-G 0 -M 0 -d 0 -aS 0.95',
'-o', outfile
])
common.syscall(cmd, verbose=verbose, verbose_filehandle=verbose_fh)
os.unlink(outfile)
def _get_from_plasmidfinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
if self.version == 'old':
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'plasmidfinder.zip'
cmd = 'curl -X POST --data "folder=plasmidfinder&filename=plasmidfinder.zip" -o ' + zipfile + ' https://cge.cbs.dtu.dk/cge/download_data.php'
print('Downloading data with:', cmd, sep='\n')
common.syscall(cmd)
common.syscall('unzip ' + zipfile)
else:
RefGenesGetter._get_genetic_epi_database_from_bitbucket('plasmidfinder', tmpdir, git_commit=self.version)
os.chdir(tmpdir)
print('Combining downloaded fasta files...')
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
name_count = {}
for filename in os.listdir(tmpdir):
if filename.endswith('.fsa'):
print(' ', filename)
file_reader = pyfastaq.sequences.file_reader(os.path.join(tmpdir, filename))
for seq in file_reader:
original_id = seq.id
seq.id = seq.id.replace('_', '.', 1)
if seq.id in name_count:
name_count[seq.id] += 1
seq.id = seq.id + '.' + str(name_count[seq.id])
else:
name_count[seq.id] = 1
print(seq, file=fout_fa)
print(seq.id, '0', '0', '.', '.', 'Original name was ' + original_id, sep='\t', file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print('\nFinished combining files\n')
os.chdir(current_dir)
if not self.debug:
shutil.rmtree(tmpdir)
print('Finished. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"PlasmidFinder and pMLST: in silico detection and typing of plasmids", Carattoli et al 2014, PMID: 24777092\n')
def _run_cdhit_est_2d(reference,
reads,
outfile,
cdhitest2d,
verbose=False,
verbose_fh=None):
cmd = ' '.join([
cdhitest2d, '-i', reference, '-i2', reads,
'-G 0 -M 0 -d 0 -aS 0.95', '-o', outfile
])
common.syscall(cmd, verbose=verbose, verbose_filehandle=verbose_fh)
os.unlink(outfile)
def _dist(self, outfile):
cmd = " ".join(
[
self.extern_progs.exe("mash"),
"dist",
self.reference_fa + ".msh",
self.query_fa + ".msh",
"| sort -k3n >",
outfile,
]
)
common.syscall(cmd, verbose=True, verbose_filehandle=self.log_fh)
def _get_from_srst2_argannot(self, outprefix):
if self.version is None:
self.version = 'r2'
if self.version not in {'r1', 'r2'}:
raise Error('srst2_argannot version must be r1 or r2. Got this: ' +
self.version)
version_string = '.r1' if self.version == 'r1' else '_r2'
srst2_url = 'https://raw.githubusercontent.com/katholt/srst2/master/data/ARGannot' + version_string + '.fasta'
srst2_fa = outprefix + '.original.fa'
command = 'wget -O ' + srst2_fa + ' ' + srst2_url
common.syscall(command, verbose=True)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
f_out_meta = pyfastaq.utils.open_file_write(final_tsv)
seq_reader = pyfastaq.sequences.file_reader(srst2_fa)
for seq in seq_reader:
original_id = seq.id
name, extra = seq.id.split()
cluster_id, cluster_name, allele_name, allele_id = name.split('__')
seq.id = cluster_name + '.' + name
print(seq, file=f_out_fa)
print(seq.id,
1,
0,
'.',
'.',
'Original name: ' + original_id,
sep='\t',
file=f_out_meta)
pyfastaq.utils.close(f_out_fa)
pyfastaq.utils.close(f_out_meta)
if not self.debug:
os.unlink(srst2_fa)
print('Finished downloading and converting data. Final files are:',
final_fasta,
final_tsv,
sep='\n\t',
end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv,
'output_directory\n')
print('If you use this downloaded data, please cite:')
print(
'"SRST2: Rapid genomic surveillance for public health and hospital microbiology labs",\nInouye et al 2014, Genome Medicine, PMID: 25422674\n'
)
print(argannot_ref)
def _newick_from_dist_matrix(cls, distance_file, outfile):
r_script = outfile + '.tmp.R'
with open(r_script, 'w') as f:
print('library(ape)', file=f)
print('a=read.table("', distance_file, '", header=TRUE, row.names=1, comment.char="")', sep='', file=f)
print('h=hclust(dist(a))', file=f)
print('write.tree(as.phylo(h), file="', outfile, '")', sep='', file=f)
common.syscall('Rscript --no-save ' + r_script)
if os.path.exists(r_script + 'out'):
os.unlink(r_script + 'out')
os.unlink(r_script)
def _get_from_virulencefinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'plasmidfinder.zip'
cmd = 'curl -X POST --data "folder=virulencefinder&filename=virulencefinder.zip" -o ' + zipfile + ' https://cge.cbs.dtu.dk/cge/download_data.php'
print('Downloading data with:', cmd, sep='\n')
common.syscall(cmd)
common.syscall('unzip ' + zipfile)
print('Combining downloaded fasta files...')
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
name_count = {}
for filename in os.listdir(tmpdir):
if filename.endswith('.fsa'):
print(' ', filename)
file_reader = pyfastaq.sequences.file_reader(os.path.join(tmpdir, filename))
for seq in file_reader:
original_id = seq.id
seq.id = seq.id.replace('_', '.', 1)
seq.id = seq.id.replace(' ', '_')
if seq.id in name_count:
name_count[seq.id] += 1
seq.id = seq.id + '.' + str(name_count[seq.id])
else:
name_count[seq.id] = 1
print(seq, file=fout_fa)
print(seq.id, '0', '0', '.', '.', 'Original name was ' + original_id, sep='\t', file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print('\nFinished combining files\n')
os.chdir(current_dir)
if not self.debug:
shutil.rmtree(tmpdir)
print('Finished. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"Real-time whole-genome sequencing for routine typing, surveillance, and outbreak detection of verotoxigenic Escherichia coli", Joensen al 2014, PMID: 24574290\n')
def write_fa_subset(seq_names, infile, outfile, samtools_exe='samtools', verbose=False, verbose_filehandle=sys.stdout):
if not os.path.exists(infile + '.fai'):
common.syscall(samtools_exe + ' faidx ' + infile, verbose=verbose, verbose_filehandle=verbose_filehandle)
if os.path.exists(outfile):
os.path.unlink(outfile)
for name in seq_names:
common.syscall(' '.join([
samtools_exe + ' faidx',
infile,
'"' + name + '"',
'>>', outfile
]))
def _get_from_srst2_argannot(self, outprefix):
srst2_version = '0.2.0'
srst2_url = 'https://github.com/katholt/srst2/raw/v' + srst2_version + '/data/ARGannot.r1.fasta'
srst2_fa = outprefix + '.original.fa'
command = 'wget -O ' + srst2_fa + ' ' + srst2_url
common.syscall(command, verbose=True)
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
f_out_meta = pyfastaq.utils.open_file_write(final_tsv)
seq_reader = pyfastaq.sequences.file_reader(srst2_fa)
for seq in seq_reader:
original_id = seq.id
name, extra = seq.id.split()
cluster_id, cluster_name, allele_name, allele_id = name.split('__')
seq.id = cluster_name + '.' + name
print(seq, file=f_out_fa)
print(seq.id,
1,
0,
'.',
'.',
'Original name: ' + original_id,
sep='\t',
file=f_out_meta)
pyfastaq.utils.close(f_out_fa)
pyfastaq.utils.close(f_out_meta)
if not self.debug:
os.unlink(srst2_fa)
print('Finished downloading and converting data. Final files are:',
final_fasta,
final_tsv,
sep='\n\t',
end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv,
'output_directory\n')
print('If you use this downloaded data, please cite:')
print(
'"SRST2: Rapid genomic surveillance for public health and hospital microbiology labs",\nInouye et al 2014, Genome Medicine, PMID: 25422674\n'
)
print(argannot_ref)
print(
'and in your methods say that the ARG-ANNOT sequences were used from version',
srst2_version, 'of SRST2.')
def write_fa_subset(seq_names,
infile,
outfile,
samtools_exe='samtools',
verbose=False):
if not os.path.exists(infile + '.fai'):
common.syscall(samtools_exe + ' faidx ' + infile, verbose=verbose)
if os.path.exists(outfile):
os.path.unlink(outfile)
for name in seq_names:
common.syscall(' '.join(
[samtools_exe + ' faidx', infile, '"' + name + '"', '>>',
outfile]))
def _assemble_with_spades(self, unittest=False):
cmd = ' '.join([
self.spades_exe,
'-1', self.reads1,
'-2', self.reads2,
'-o', self.assembler_dir,
'-k', str(self.assembly_kmer),
'--threads', str(self.threads),
'--untrusted-contigs', self.gene_fa,
])
if self.spades_other is not None:
cmd += ' ' + self.spades_other
cwd = os.getcwd()
os.chdir(self.assembly_dir)
spades_contigs = os.path.join(os.path.split(self.assembler_dir)[1], 'scaffolds.fasta')
if unittest:
os.mkdir(self.assembler_dir)
open(spades_contigs, 'w').close()
self.assembled_ok = True
else:
self.assembled_ok, err = common.syscall(cmd, verbose=self.verbose, allow_fail=True)
if self.assembled_ok:
os.symlink(spades_contigs, os.path.basename(self.assembly_contigs))
else:
with open('spades_errors', 'w') as f:
print(err, file=f)
f.close()
self.status_flag.add('assembly_fail')
os.chdir(cwd)
def _get_from_resfinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + ".fa"
final_tsv = outprefix + ".tsv"
tmpdir = outprefix + ".tmp.download"
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error("Error mkdir/chdir " + tmpdir)
zipfile = "resfinder.zip"
cmd = (
'curl -X POST --data "folder=resfinder&filename=resfinder.zip" -o '
+ zipfile
+ " https://cge.cbs.dtu.dk/cge/download_data.php"
)
print("Downloading data with:", cmd, sep="\n")
common.syscall(cmd)
common.syscall("unzip " + zipfile)
print("Combining downloaded fasta files...")
fout_fa = pyfastaq.utils.open_file_write(final_fasta)
fout_tsv = pyfastaq.utils.open_file_write(final_tsv)
for filename in os.listdir("database"):
if filename.endswith(".fsa"):
print(" ", filename)
prefix = filename.split(".")[0]
file_reader = pyfastaq.sequences.file_reader(os.path.join("database", filename))
for seq in file_reader:
seq.id = prefix + "." + seq.id
print(seq, file=fout_fa)
print(seq.id, "1", "0", ".", ".", ".", sep="\t", file=fout_tsv)
pyfastaq.utils.close(fout_fa)
pyfastaq.utils.close(fout_tsv)
print("\nFinished combining files\n")
os.chdir(current_dir)
shutil.rmtree(tmpdir)
print("Finished. Final files are:", final_fasta, final_tsv, sep="\n\t", end="\n\n")
print("You can use them with ARIBA like this:")
print("ariba prepareref -f", final_fasta, "-m", final_tsv, "output_directory\n")
print("If you use this downloaded data, please cite:")
print('"Identification of acquired antimicrobial resistance genes", Zankari et al 2012, PMID: 22782487\n')
def _scaffold_with_sspace(self):
if not os.path.exists(self.assembly_contigs):
raise Error('Cannot scaffold because contigs file not found: ' + self.assembly_contigs)
try:
os.mkdir(self.scaffold_dir)
except:
raise Error('Error mkdir '+ self.scaffold_dir)
cwd = os.getcwd()
#if self.extern_progs.exe('sspace') is None:
if True: # no longer use sspace, but leave the option here just in case
os.chdir(self.working_dir)
os.symlink(self.assembly_contigs, os.path.basename(self.scaffolder_scaffolds))
os.chdir(cwd)
return
os.chdir(self.scaffold_dir)
lib_file = 'lib'
with open(lib_file, 'w') as f:
print('LIB', self.reads1, self.reads2, int(self.reads_insert), self.sspace_sd, 'FR', file=f)
cmd = ' '.join([
'perl', self.extern_progs.exe('sspace'),
'-k', str(self.sspace_k),
'-l', lib_file,
'-s', self.assembly_contigs
])
common.syscall(cmd, verbose=True, verbose_filehandle=self.log_fh)
sspace_scaffolds = os.path.abspath('standard_output.final.scaffolds.fasta')
sspace_log = os.path.abspath('standard_output.logfile.txt')
with open(sspace_log) as f:
print('\n_______________ SSPACE log __________________\n', file=self.log_fh)
for line in f:
print(line.rstrip(), file=self.log_fh)
print('_______________ End of SSPACE log __________________\n', file=self.log_fh)
os.rename(sspace_scaffolds, self.scaffolder_scaffolds)
os.chdir(cwd)
if self.clean:
print('Deleting scaffolding directory', self.scaffold_dir, file=self.log_fh)
shutil.rmtree(self.scaffold_dir)
def _assemble_with_spades(self, unittest=False):
cmd = ' '.join([
self.extern_progs.exe('spades'),
'-1', self.reads1,
'-2', self.reads2,
'-o', self.assembler_dir,
'-k', str(self.assembly_kmer),
'--threads 1', # otherwise defaults to 16!
'--untrusted-contigs', self.ref_fasta,
])
if self.spades_other_options is not None:
cmd += ' ' + self.spades_other_options
cwd = os.getcwd()
try:
os.chdir(self.working_dir)
except:
raise Error('Error chdir ' + self.working_dir)
spades_contigs = os.path.join(os.path.split(self.assembler_dir)[1], 'scaffolds.fasta')
if unittest:
os.mkdir(self.assembler_dir)
open(spades_contigs, 'w').close()
self.assembled_ok = True
else:
self.assembled_ok, err = common.syscall(cmd, verbose=True, allow_fail=True, verbose_filehandle=self.log_fh, print_errors=False)
if self.assembled_ok:
os.rename(spades_contigs, os.path.basename(self.assembly_contigs))
else:
print('Assembly finished with errors. These are the errors:', file=self.log_fh)
print(err, file=self.log_fh)
print('\nEnd of spades errors\n', file=self.log_fh)
spades_log = os.path.join(self.assembler_dir, 'spades.log')
if os.path.exists(spades_log):
self._check_spades_log_file(spades_log)
with open(spades_log) as f:
print('\n______________ SPAdes log ___________________\n', file=self.log_fh)
for line in f:
print(line.rstrip(), file=self.log_fh)
print('\n______________ End of SPAdes log _________________\n', file=self.log_fh)
spades_warnings = os.path.join(self.assembler_dir, 'warnings.log')
if os.path.exists(spades_warnings):
with open(spades_warnings) as f:
print('\n______________ SPAdes warnings ___________________\n', file=self.log_fh)
for line in f:
print(line.rstrip(), file=self.log_fh)
print('\n______________ End of SPAdes warnings _________________\n', file=self.log_fh)
os.chdir(cwd)
if self.clean:
print('Deleting assembly directory', self.assembler_dir, file=self.log_fh)
shutil.rmtree(self.assembler_dir)
def run_bowtie2(
reads_fwd,
reads_rev,
ref_fa,
out_prefix,
threads=1,
max_insert=1000,
sort=False,
samtools='samtools',
bowtie2='bowtie2',
bowtie2_preset='very-sensitive-local',
verbose=False
):
map_index = out_prefix + '.map_index'
clean_files = [map_index + '.' + x + '.bt2' for x in ['1', '2', '3', '4', 'rev.1', 'rev.2']]
index_cmd = ' '.join([
bowtie2 + '-build',
'-q',
ref_fa,
map_index
])
final_bam = out_prefix + '.bam'
if sort:
intermediate_bam = out_prefix + '.unsorted.bam'
else:
intermediate_bam = final_bam
map_cmd = ' '.join([
bowtie2,
'--threads', str(threads),
'--' + bowtie2_preset,
'-X', str(max_insert),
'-x', map_index,
'-1', reads_fwd,
'-2', reads_rev,
'|', samtools, 'view',
'-bS -T', ref_fa,
'- >', intermediate_bam
])
common.syscall(index_cmd, verbose=verbose)
common.syscall(map_cmd, verbose=verbose)
if sort:
threads = min(4, threads)
thread_mem = int(500 / threads)
sort_cmd = samtools + ' sort -@' + str(threads) + ' -m ' + str(thread_mem) + 'M ' + intermediate_bam + ' ' + out_prefix
index_cmd = samtools + ' index ' + final_bam
common.syscall(sort_cmd, verbose=verbose)
common.syscall(index_cmd, verbose=verbose)
for fname in clean_files:
os.unlink(fname)
def bowtie2_index(ref_fa, outprefix, bowtie2='bowtie2', verbose=False, verbose_filehandle=sys.stdout):
expected_files = [outprefix + '.' + x + '.bt2' for x in ['1', '2', '3', '4', 'rev.1', 'rev.2']]
file_missing = False
for filename in expected_files:
if not os.path.exists(filename):
file_missing = True
break
if not file_missing:
return
cmd = ' '.join([
bowtie2 + '-build',
'-q',
ref_fa,
outprefix
])
common.syscall(cmd, verbose=verbose, verbose_filehandle=verbose_filehandle)
def bowtie2_index(ref_fa, outprefix, bowtie2='bowtie2', verbose=False, verbose_filehandle=sys.stdout):
expected_files = [outprefix + '.' + x + '.bt2' for x in ['1', '2', '3', '4', 'rev.1', 'rev.2']]
file_missing = False
for filename in expected_files:
if not os.path.exists(filename):
file_missing = True
break
if not file_missing:
return
cmd = ' '.join([
bowtie2 + '-build',
'-q',
ref_fa,
outprefix
])
common.syscall(cmd, verbose=verbose, verbose_filehandle=verbose_filehandle)
def _get_from_argannot(self, outprefix):
outprefix = os.path.abspath(outprefix)
tmpdir = outprefix + ".tmp.download"
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error("Error mkdir/chdir " + tmpdir)
zipfile = "arg-annot-database_doc.zip"
self._download_file(
"http://www.mediterranee-infection.com/arkotheque/client/ihumed/_depot_arko/articles/304/arg-annot-database_doc.zip",
zipfile,
)
common.syscall("unzip " + zipfile)
os.chdir(current_dir)
print("Extracted files.")
genes_file = os.path.join(tmpdir, "Database Nt Sequences File.txt")
final_fasta = outprefix + ".fa"
final_tsv = outprefix + ".tsv"
seq_reader = pyfastaq.sequences.file_reader(genes_file)
f_out_tsv = pyfastaq.utils.open_file_write(final_tsv)
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
for seq in seq_reader:
original_id = seq.id
seq.id = re.sub(r"\((.*)\)", r"\1.", seq.id)
print(seq, file=f_out_fa)
print(seq.id, "1", "0", ".", ".", "Original name was " + original_id, sep="\t", file=f_out_tsv)
pyfastaq.utils.close(f_out_tsv)
pyfastaq.utils.close(f_out_fa)
shutil.rmtree(tmpdir)
print("Finished. Final files are:", final_fasta, final_tsv, sep="\n\t", end="\n\n")
print("You can use them with ARIBA like this:")
print("ariba prepareref -f", final_fasta, "-m", final_tsv, "output_directory\n")
print("If you use this downloaded data, please cite:")
print(argannot_ref)
def _scaffold_with_sspace(self):
if not os.path.exists(self.assembly_contigs):
raise Error('Cannot scaffold because contigs file not found: ' +
self.assembly_contigs)
try:
os.mkdir(self.scaffold_dir)
except:
raise Error('Error mkdir ' + self.scaffold_dir)
cwd = os.getcwd()
if self.sspace_exe is None:
os.chdir(self.assembly_dir)
os.symlink(os.path.basename(self.assembly_contigs),
os.path.basename(self.scaffolder_scaffolds))
os.chdir(cwd)
return
os.chdir(self.scaffold_dir)
lib_file = 'lib'
with open(lib_file, 'w') as f:
print('LIB',
self.reads1,
self.reads2,
int(self.reads_insert),
self.sspace_sd,
'FR',
file=f)
cmd = ' '.join([
'perl', self.sspace_exe, '-k',
str(self.sspace_k), '-l', lib_file, '-s', self.assembly_contigs
])
sspace_scaffolds = os.path.abspath(
'standard_output.final.scaffolds.fasta')
common.syscall(cmd, verbose=self.verbose)
os.chdir(self.assembly_dir)
os.symlink(os.path.relpath(sspace_scaffolds),
os.path.basename(self.scaffolder_scaffolds))
os.chdir(cwd)
def _get_from_argannot(self, outprefix):
outprefix = os.path.abspath(outprefix)
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'arg-annot-database_doc.zip'
common.download_file('http://www.mediterranee-infection.com/arkotheque/client/ihumed/_depot_arko/articles/304/arg-annot-database_doc.zip', zipfile, max_attempts=self.max_download_attempts, sleep_time=self.sleep_time, verbose=True)
common.syscall('unzip ' + zipfile)
os.chdir(current_dir)
print('Extracted files.')
genes_file = os.path.join(tmpdir, 'Database Nt Sequences File.txt')
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
seq_reader = pyfastaq.sequences.file_reader(genes_file)
f_out_tsv = pyfastaq.utils.open_file_write(final_tsv)
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
for seq in seq_reader:
original_id = seq.id
seq.id = re.sub(r'\((.*)\)', r'\1.', seq.id.split()[0])
print(seq, file=f_out_fa)
print(seq.id, '1', '0', '.', '.', 'Original name: ' + original_id, sep='\t', file=f_out_tsv)
pyfastaq.utils.close(f_out_tsv)
pyfastaq.utils.close(f_out_fa)
if not self.debug:
shutil.rmtree(tmpdir)
print('Finished. Final files are:', final_fasta, final_tsv, sep='\n\t', end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print(argannot_ref)
def run(self):
tmpdir = tempfile.mkdtemp(prefix='tmp.run_cd-hit.', dir=os.getcwd())
cdhit_fasta = os.path.join(tmpdir, 'cdhit')
cluster_info_outfile = cdhit_fasta + '.bak.clstr'
cmd = ' '.join([
self.cd_hit_est,
'-i', self.infile,
'-o', cdhit_fasta,
'-c', str(self.seq_identity_threshold),
'-T', str(self.threads),
'-s', str(self.length_diff_cutoff),
'-d 0',
'-bak 1',
])
common.syscall(cmd, verbose=self.verbose)
clusters = self._get_clusters_from_bak_file(cluster_info_outfile, self.min_cluster_number)
shutil.rmtree(tmpdir)
return clusters
def run(self):
tmpdir = tempfile.mkdtemp(prefix='tmp.run_cd-hit.', dir=os.getcwd())
cdhit_fasta = os.path.join(tmpdir, 'cdhit')
cluster_info_outfile = cdhit_fasta + '.bak.clstr'
cmd = ' '.join([
self.cd_hit_est,
'-i', self.infile,
'-o', cdhit_fasta,
'-c', str(self.seq_identity_threshold),
'-T', str(self.threads),
'-s', str(self.length_diff_cutoff),
'-d 0',
'-bak 1',
])
common.syscall(cmd, verbose=self.verbose)
clusters = self._get_clusters_from_bak_file(cluster_info_outfile, self.min_cluster_number)
shutil.rmtree(tmpdir)
return clusters
def _gap_fill_with_gapfiller(self):
if not os.path.exists(self.scaffolder_scaffolds):
raise Error('Cannot gap fill because scaffolds file not found: ' +
self.scaffolder_scaffolds)
cwd = os.getcwd()
if self.gapfiller_exe is None or not self._has_gaps_to_fill(
self.scaffolder_scaffolds):
self._rename_scaffolds(self.scaffolder_scaffolds,
self.gapfilled_scaffolds)
return
try:
os.mkdir(self.gapfill_dir)
except:
raise Error('Error mkdir ' + self.gapfill_dir)
os.chdir(self.gapfill_dir)
lib_file = 'lib'
with open(lib_file, 'w') as f:
print('LIB',
'bwa',
self.reads1,
self.reads2,
self.reads_insert,
self.sspace_sd,
'FR',
file=f)
cmd = ' '.join([
'perl', self.gapfiller_exe, '-l', lib_file, '-s',
self.scaffolder_scaffolds
])
gapfilled_scaffolds = os.path.join(
self.gapfill_dir, 'standard_output',
'standard_output.gapfilled.final.fa')
common.syscall(cmd, verbose=self.verbose)
self._rename_scaffolds(gapfilled_scaffolds, self.gapfilled_scaffolds)
os.chdir(cwd)
def _get_from_resfinder(self, outprefix):
outprefix = os.path.abspath(outprefix)
final_fasta = outprefix + '.presence_absence.fa'
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'resfinder.zip'
cmd = 'curl -X POST --data "folder=resfinder&filename=resfinder.zip" -o ' + zipfile + ' https://cge.cbs.dtu.dk/cge/download_data.php'
print('Downloading data with:', cmd, sep='\n')
common.syscall(cmd)
common.syscall('unzip ' + zipfile)
print('Combining downloaded fasta files...')
f = pyfastaq.utils.open_file_write(final_fasta)
for filename in os.listdir('database'):
if filename.endswith('.fsa'):
print(' ', filename)
prefix = filename.split('.')[0]
file_reader = pyfastaq.sequences.file_reader(os.path.join('database', filename))
for seq in file_reader:
seq.id = prefix + '.' + seq.id
print(seq, file=f)
pyfastaq.utils.close(f)
print('\nCombined files. Final genes file is called', final_fasta, end='\n\n')
os.chdir(current_dir)
shutil.rmtree(tmpdir)
print('You can use it with ARIBA like this:')
print('ariba prepareref --ref_prefix', outprefix, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"Identification of acquired antimicrobial resistance genes", Zankari et al 2012, PMID: 22782487\n')
def _make_assembly_vcf(self):
tmp_vcf = self.final_assembly_vcf + '.tmp'
cmd = ' '.join([
self.samtools_exe, 'mpileup', '-t INFO/DPR,DV', '-A', '-f',
self.final_assembly_fa, '-u', '-v', self.final_assembly_bam, '>',
tmp_vcf
])
common.syscall(cmd, verbose=self.verbose)
cmd = ' '.join([
self.bcftools_exe, 'call -m', tmp_vcf, '|', self.bcftools_exe,
'query', r'''-f '%CHROM\t%POS\t%REF\t%ALT\t%DP\t%DPR]\n' ''', '>',
self.final_assembly_read_depths + '.tmp'
])
common.syscall(cmd, verbose=self.verbose)
pysam.tabix_compress(self.final_assembly_read_depths + '.tmp',
self.final_assembly_read_depths)
pysam.tabix_index(self.final_assembly_read_depths,
seq_col=0,
start_col=1,
end_col=1)
os.unlink(self.final_assembly_read_depths + '.tmp')
cmd = ' '.join([
self.bcftools_exe, 'call -m -v', tmp_vcf, '|', self.bcftools_exe,
'filter', '-i', '"MIN(DP)>=' + str(self.bcf_min_dp),
' & MIN(DV)>=' + str(self.bcf_min_dv),
' & MIN(DV/DP)>=' + str(self.bcf_min_dv_over_dp), ' & QUAL >=',
str(self.bcf_min_qual), '"', '-o', self.final_assembly_vcf
])
common.syscall(cmd, verbose=self.verbose)
os.unlink(tmp_vcf)
def _get_from_argannot(self, outprefix):
outprefix = os.path.abspath(outprefix)
tmpdir = outprefix + '.tmp.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
zipfile = 'arg-annot-database_doc.zip'
self._download_file('http://www.mediterranee-infection.com/arkotheque/client/ihumed/_depot_arko/articles/304/arg-annot-database_doc.zip', zipfile)
common.syscall('unzip ' + zipfile)
os.chdir(current_dir)
print('Extracted files.')
genes_file = os.path.join(tmpdir, 'Database Nt Sequences File.txt')
final_fasta = outprefix + '.presence_absence.fa'
seq_reader = pyfastaq.sequences.file_reader(genes_file)
ids = {}
for seq in seq_reader:
ids[seq.id] = ids.get(seq.id, 0) + 1
for name, count in sorted(ids.items()):
if count > 1:
print('Warning! Sequence name', name, 'found', count, 'times in download. Keeping longest sequence', file=sys.stderr)
pyfastaq.tasks.to_unique_by_id(genes_file, final_fasta)
shutil.rmtree(tmpdir)
print('Finished. Final genes file is called', final_fasta, end='\n\n')
print('You can use it with ARIBA like this:')
print('ariba prepareref --ref_prefix', outprefix, 'output_directory\n')
print('If you use this downloaded data, please cite:')
print('"ARG-ANNOT, a new bioinformatic tool to discover antibiotic resistance genes in bacterial genomes",\nGupta et al 2014, PMID: 24145532\n')
def _get_from_srst2_argannot(self, outprefix):
srst2_version = "0.2.0"
srst2_url = "https://github.com/katholt/srst2/raw/v" + srst2_version + "/data/ARGannot.r1.fasta"
srst2_fa = outprefix + ".original.fa"
command = "wget -O " + srst2_fa + " " + srst2_url
common.syscall(command, verbose=True)
final_fasta = outprefix + ".fa"
final_tsv = outprefix + ".tsv"
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
f_out_meta = pyfastaq.utils.open_file_write(final_tsv)
seq_reader = pyfastaq.sequences.file_reader(srst2_fa)
for seq in seq_reader:
original_id = seq.id
name, extra = seq.id.split()
cluster_id, cluster_name, allele_name, allele_id = name.split("__")
seq.id = cluster_name + "." + name
print(seq, file=f_out_fa)
print(seq.id, 1, 0, ".", ".", "Original name: " + original_id, sep="\t", file=f_out_meta)
pyfastaq.utils.close(f_out_fa)
pyfastaq.utils.close(f_out_meta)
print(
"Finished downloading and converting data. Final files are:", final_fasta, final_tsv, sep="\n\t", end="\n\n"
)
print("You can use them with ARIBA like this:")
print("ariba prepareref -f", final_fasta, "-m", final_tsv, "output_directory\n")
print("If you use this downloaded data, please cite:")
print(
'"SRST2: Rapid genomic surveillance for public health and hospital microbiology labs",\nInouye et al 2014, Genome Medicine, PMID: 25422674\n'
)
print(argannot_ref)
print("and in your methods say that the ARG-ANNOT sequences were used from version", srst2_version, "of SRST2.")
def run_bowtie2(reads_fwd,
reads_rev,
ref_fa,
out_prefix,
threads=1,
max_insert=1000,
sort=False,
samtools='samtools',
bowtie2='bowtie2',
bowtie2_preset='very-sensitive-local',
verbose=False):
map_index = out_prefix + '.map_index'
clean_files = [
map_index + '.' + x + '.bt2'
for x in ['1', '2', '3', '4', 'rev.1', 'rev.2']
]
index_cmd = ' '.join([bowtie2 + '-build', '-q', ref_fa, map_index])
final_bam = out_prefix + '.bam'
if sort:
intermediate_bam = out_prefix + '.unsorted.bam'
else:
intermediate_bam = final_bam
map_cmd = ' '.join([
bowtie2, '--threads',
str(threads), '--' + bowtie2_preset, '-X',
str(max_insert), '-x', map_index, '-1', reads_fwd, '-2', reads_rev,
'|', samtools, 'view', '-bS -T', ref_fa, '- >', intermediate_bam
])
common.syscall(index_cmd, verbose=verbose)
common.syscall(map_cmd, verbose=verbose)
if sort:
threads = min(4, threads)
thread_mem = int(500 / threads)
sort_cmd = samtools + ' sort -@' + str(threads) + ' -m ' + str(
thread_mem) + 'M ' + intermediate_bam + ' ' + out_prefix
index_cmd = samtools + ' index ' + final_bam
common.syscall(sort_cmd, verbose=verbose)
common.syscall(index_cmd, verbose=verbose)
for fname in clean_files:
os.unlink(fname)
def _assemble_with_spades(self, unittest=False):
cmd = ' '.join([
self.spades_exe,
'-1',
self.reads1,
'-2',
self.reads2,
'-o',
self.assembler_dir,
'-k',
str(self.assembly_kmer),
'--threads',
str(self.threads),
'--untrusted-contigs',
self.gene_fa,
])
if self.spades_other is not None:
cmd += ' ' + self.spades_other
cwd = os.getcwd()
os.chdir(self.assembly_dir)
spades_contigs = os.path.join(
os.path.split(self.assembler_dir)[1], 'scaffolds.fasta')
if unittest:
os.mkdir(self.assembler_dir)
open(spades_contigs, 'w').close()
self.assembled_ok = True
else:
self.assembled_ok, err = common.syscall(cmd,
verbose=self.verbose,
allow_fail=True)
if self.assembled_ok:
os.symlink(spades_contigs, os.path.basename(self.assembly_contigs))
else:
with open('spades_errors', 'w') as f:
print(err, file=f)
f.close()
self.status_flag.add('assembly_fail')
os.chdir(cwd)
def _make_assembly_vcf(self):
tmp_vcf = self.final_assembly_vcf + '.tmp'
cmd = ' '.join([
self.samtools_exe, 'mpileup',
'-t INFO/DPR,DV',
'-A',
'-f', self.final_assembly_fa,
'-u',
'-v',
self.final_assembly_bam,
'>',
tmp_vcf
])
common.syscall(cmd, verbose=self.verbose)
cmd = ' '.join([
self.bcftools_exe, 'call -m',
tmp_vcf,
'|',
self.bcftools_exe, 'query',
r'''-f '%CHROM\t%POS\t%REF\t%ALT\t%DP\t%DPR]\n' ''',
'>',
self.final_assembly_read_depths + '.tmp'
])
common.syscall(cmd, verbose=self.verbose)
pysam.tabix_compress(self.final_assembly_read_depths + '.tmp', self.final_assembly_read_depths)
pysam.tabix_index(self.final_assembly_read_depths, seq_col=0, start_col=1, end_col=1)
os.unlink(self.final_assembly_read_depths + '.tmp')
cmd = ' '.join([
self.bcftools_exe, 'call -m -v',
tmp_vcf,
'|',
self.bcftools_exe, 'filter',
'-i', '"MIN(DP)>=' + str(self.bcf_min_dp),
' & MIN(DV)>=' + str(self.bcf_min_dv),
' & MIN(DV/DP)>=' + str(self.bcf_min_dv_over_dp),
' & QUAL >=', str(self.bcf_min_qual), '"',
'-o', self.final_assembly_vcf
])
common.syscall(cmd, verbose=self.verbose)
os.unlink(tmp_vcf)
def _make_vcf_and_read_depths_files(self):
tmp_vcf = self.vcf_file + '.tmp'
cmd = ' '.join([
self.samtools_exe, 'mpileup',
'-t INFO/AD',
'-A',
'-f', self.ref_fa,
'-u',
'-v',
self.bam,
'>',
tmp_vcf
])
common.syscall(cmd, verbose=True, verbose_filehandle=self.log_fh)
cmd = ' '.join([
self.bcftools_exe, 'call -m',
tmp_vcf,
'|',
self.bcftools_exe, 'query',
r'''-f '%CHROM\t%POS\t%REF\t%ALT\t%DP\t%AD]\n' ''',
'>',
self.read_depths_file + '.tmp'
])
common.syscall(cmd, verbose=True, verbose_filehandle=self.log_fh)
pysam.tabix_compress(self.read_depths_file + '.tmp', self.read_depths_file)
pysam.tabix_index(self.read_depths_file, seq_col=0, start_col=1, end_col=1)
os.unlink(self.read_depths_file + '.tmp')
cmd = ' '.join([
self.bcftools_exe, 'call -m -v',
tmp_vcf,
'|',
self.bcftools_exe, 'filter',
'-i', '"SUM(AD)>=5 & MIN(AD)/DP>=0.1"',
'-o', self.vcf_file
])
common.syscall(cmd, verbose=True, verbose_filehandle=self.log_fh)
os.unlink(tmp_vcf)
def run_bowtie2(
reads_fwd,
reads_rev,
ref_fa,
out_prefix,
threads=1,
max_insert=1000,
sort=False,
bowtie2='bowtie2',
bowtie2_preset='very-sensitive-local',
bowtie2_version=None,
verbose=False,
verbose_filehandle=sys.stdout,
remove_both_unmapped=False,
clean_index=True,
):
ref_is_indexed = True
for ext in bowtie2_index_extensions:
if not os.path.exists(ref_fa + '.' + ext):
ref_is_indexed = False
break
clean_files = []
if ref_is_indexed:
if verbose:
print('Bowtie2 index files found (', ref_fa, '.*.bt2) so no need to index', sep='', file=verbose_filehandle)
map_index = ref_fa
else:
map_index = out_prefix + '.map_index'
bowtie2_index(ref_fa, map_index, bowtie2=bowtie2, verbose=verbose, verbose_filehandle=verbose_filehandle)
if clean_index:
clean_files = [map_index + '.' + x + '.bt2' for x in ['1', '2', '3', '4', 'rev.1', 'rev.2']]
final_bam = out_prefix + '.bam'
if sort:
intermediate_bam = out_prefix + '.unsorted.bam'
else:
intermediate_bam = final_bam
map_cmd = [
bowtie2,
'--threads', str(threads),
'--reorder',
'--' + bowtie2_preset,
'-X', str(max_insert),
'-x', map_index,
'-1', reads_fwd,
'-2', reads_rev,
]
if LooseVersion(bowtie2_version) >= LooseVersion('2.3.1'):
map_cmd.append('--score-min G,1,10')
# We use gawk instead of awk here as we need bitwise comparisons
# and these are not available via awk on Mac OSX.
if remove_both_unmapped:
map_cmd.append(r''' | gawk ' !(and($2,4)) || !(and($2,8)) ' ''')
tmp_sam_file = out_prefix + '.unsorted.sam'
map_cmd.append(' > ' + tmp_sam_file)
map_cmd = ' '.join(map_cmd)
common.syscall(map_cmd, verbose=verbose, verbose_filehandle=verbose_filehandle)
if verbose:
print('Converting', tmp_sam_file, '->', intermediate_bam, file=verbose_filehandle)
infile = pysam.AlignmentFile(tmp_sam_file, "r")
outfile = pysam.AlignmentFile(intermediate_bam, "wb", template=infile)
for x in infile:
outfile.write(x)
infile.close()
outfile.close()
os.unlink(tmp_sam_file)
if sort:
if verbose:
print('Sorting', intermediate_bam, '->', final_bam, file=verbose_filehandle)
pysam.sort('-o', final_bam, '-O', 'BAM', intermediate_bam)
if verbose:
print('Indexing', final_bam, file=verbose_filehandle)
pysam.index(final_bam)
clean_files.append(intermediate_bam)
for fname in clean_files:
os.unlink(fname)
def _sort_file(infile, outfile, log_fh=None):
cmd = 'sort -k1,1 -k 2,2n ' + infile + ' > ' + outfile
verbose = log_fh is not None
common.syscall(cmd, verbose=verbose, verbose_filehandle=log_fh)
def _assemble_with_spades(self):
cwd = os.getcwd()
self.assembled_ok = False
try:
try:
os.chdir(self.working_dir)
except:
raise Error('Error chdir ' + self.working_dir)
spades_exe = self.extern_progs.exe('spades')
if not spades_exe:
raise Error("Spades executable has not been found")
spades_options = self.spades_options
if spades_options is not None:
spades_options = shlex.split(self.spades_options)
if self.spades_mode == "rna":
spades_options = ["--rna"] + (["-k", "127"] if spades_options
is None else spades_options)
spades_out_seq_base = "transcripts.fasta"
elif self.spades_mode == "sc":
spades_options = ["--sc"] + ([
"-k", "33,55,77,99,127", "--careful"
] if spades_options is None else spades_options)
spades_out_seq_base = "contigs.fasta"
elif self.spades_mode == "wgs":
spades_options = [
"-k", "33,55,77,99,127", "--careful"
] if spades_options is None else spades_options
spades_out_seq_base = "contigs.fasta"
else:
raise ValueError("Unknown spades_mode value: {}".format(
self.spades_mode))
asm_cmd = [spades_exe, "-t", str(self.threads), "--pe1-1", self.reads1, "--pe1-2", self.reads2, "-o", self.assembler_dir] + \
spades_options
asm_ok, err = common.syscall(asm_cmd,
verbose=True,
verbose_filehandle=self.log_fh,
shell=False,
allow_fail=True)
if not asm_ok:
print('Assembly finished with errors. These are the errors:',
file=self.log_fh)
print(err, file=self.log_fh)
print('\nEnd of spades errors\n', file=self.log_fh)
else:
spades_log = os.path.join(self.assembler_dir, 'spades.log')
if os.path.exists(spades_log):
self._check_spades_log_file(spades_log)
with open(spades_log) as f:
print(
'\n______________ SPAdes log ___________________\n',
file=self.log_fh)
for line in f:
print(line.rstrip(), file=self.log_fh)
print(
'\n______________ End of SPAdes log _________________\n',
file=self.log_fh)
spades_warnings = os.path.join(self.assembler_dir,
'warnings.log')
if os.path.exists(spades_warnings):
with open(spades_warnings) as f:
print(
'\n______________ SPAdes warnings ___________________\n',
file=self.log_fh)
for line in f:
print(line.rstrip(), file=self.log_fh)
print(
'\n______________ End of SPAdes warnings _________________\n',
file=self.log_fh)
## fermilight module generates contig names that look like `cluster_1.l15.c17.ctg.1` where 'cluster_1'==self.contig_name_prefix
## the whole structure of the contig name is expected in several places downstream where it is parsed into individual components.
## For example, it is parsed into to l and c parts in ref_seq_chooser (although the parts are not actually used).
## This is the code from fermilight module that generates the contig ID string:
## ofs << ">" << namePrefix << ".l" << overlap << ".c" << minCount << ".ctg." << i + 1 << '\n'
##
## We generate the same contig name structure here using dummy values for overlap and minCount, in order
## to avoid distrupting the downstream code.
## Note that the fermilight module generates multiple versions of the assembly on a grid of l and c values,
## and ref_seq_chooser then picks a single "best" (l,c) version based on coverage/identity of the nucmer
## alignment to the reference. Spades generates a single version of the assembly, so ref_seq_chooser
## can only pick that one version.
spades_out_seq = os.path.join(self.assembler_dir,
spades_out_seq_base)
## No need really to use general-purpose pyfastaq.sequences.file_reader here and pay performance cost for
## its multi-format line tests since we are only replacing the IDs in a pre-defined format
if os.path.exists(spades_out_seq):
with open(spades_out_seq,
"r") as inp, open(self.all_assembly_contigs_fa,
"w") as out:
pref = self.contig_name_prefix
i_cont = 0
for line in inp:
if line.startswith(">"):
i_cont += 1
line = ">{}.l15.c17.ctg.{}\n".format(
pref, i_cont)
out.write(line)
if i_cont > 0:
self.assembled_ok = True
if self.clean:
print('Deleting assembly directory',
self.assembler_dir,
file=self.log_fh)
shutil.rmtree(self.assembler_dir, ignore_errors=True)
finally:
os.chdir(cwd)
def run_smalt(reads_fwd,
reads_rev,
ref_fa,
out_prefix,
index_k=9,
index_s=2,
threads=1,
max_insert=1000,
minid=0.9,
sort=False,
extra_smalt_map_ops='-x',
samtools='samtools',
smalt='smalt',
verbose=False):
if extra_smalt_map_ops is None:
extra_smalt_map_ops = ''
map_index = out_prefix + '.map_index'
clean_files = [map_index + '.' + x for x in ['smi', 'sma']]
index_cmd = ' '.join([
smalt, 'index', '-k',
str(index_k), '-s',
str(index_s), map_index, ref_fa
])
map_cmd = smalt + ' map ' + extra_smalt_map_ops + ' '
# depending on OS, -n can break smalt, so only use -n if it's > 1.
if threads > 1:
map_cmd += '-n ' + str(threads) + ' -O '
if reads_rev is None:
map_cmd += ' '.join([
'-y',
str(minid),
map_index,
reads_fwd,
])
else:
map_cmd += ' '.join([
'-i',
str(max_insert),
'-y',
str(minid),
map_index,
reads_fwd,
reads_rev,
])
map_cmd += ' | ' + samtools + ' view'
final_bam = out_prefix + '.bam'
if sort:
intermediate_bam = out_prefix + '.unsorted.bam'
else:
intermediate_bam = final_bam
map_cmd += ' -bS -T ' + ref_fa + ' - > ' + intermediate_bam
common.syscall(index_cmd, verbose=verbose)
common.syscall(map_cmd, verbose=verbose)
if sort:
threads = min(4, threads)
thread_mem = int(500 / threads)
sort_cmd = samtools + ' sort -@' + str(threads) + ' -m ' + str(
thread_mem) + 'M ' + intermediate_bam + ' ' + out_prefix
index_cmd = samtools + ' index ' + final_bam
common.syscall(sort_cmd, verbose=verbose)
common.syscall(index_cmd, verbose=verbose)
for fname in clean_files:
os.unlink(fname)
def _sort_file(infile, outfile, log_fh=None):
cmd = 'sort -k1,1 -k 2,2n ' + infile + ' > ' + outfile
verbose = log_fh is not None
common.syscall(cmd, verbose=verbose, verbose_filehandle=log_fh)
def _get_from_card(self, outprefix):
outprefix = os.path.abspath(outprefix)
tmpdir = outprefix + '.download'
current_dir = os.getcwd()
try:
os.mkdir(tmpdir)
os.chdir(tmpdir)
except:
raise Error('Error mkdir/chdir ' + tmpdir)
versions = self._get_card_versions('download.html')
if self.version is not None:
key = tuple([int(x) for x in self.version.split('.')])
if key not in versions:
raise Error('Error! Did not find requested version ' +
self.version)
else:
key = sorted(list(versions.keys()))[-1]
self.version = '.'.join([str(x) for x in key])
print('Getting version', self.version)
card_tarball_url = versions[key]
card_tarball = 'card.tar.bz2'
print('Working in temporary directory', tmpdir)
print('Downloading data from card:', card_tarball_url, flush=True)
common.syscall('wget -O ' + card_tarball + ' ' + card_tarball_url,
verbose=True)
print('...finished downloading', flush=True)
if not tarfile.is_tarfile(card_tarball):
raise Error(
'File ' + card_tarball + ' downloaded from ' +
card_tarball_url +
' does not look like a valid tar archive. Cannot continue')
json_file = './card.json'
with tarfile.open(card_tarball, 'r') as tfile:
tfile.extract(json_file)
print('Extracted json data file ',
json_file,
'. Reading its contents...',
sep='')
final_fasta = outprefix + '.fa'
final_tsv = outprefix + '.tsv'
log_file = outprefix + '.log'
f_out_fa = pyfastaq.utils.open_file_write(final_fasta)
f_out_tsv = pyfastaq.utils.open_file_write(final_tsv)
f_out_log = pyfastaq.utils.open_file_write(log_file)
with open(json_file) as f:
json_data = json.load(f)
json_data = {
int(x): json_data[x]
for x in json_data if not x.startswith('_')
}
print('Found',
len(json_data),
'records in the json file. Analysing...',
flush=True)
for gene_key, gene_dict in sorted(json_data.items()):
crecord = card_record.CardRecord(gene_dict)
data = crecord.get_data()
data['ARO_description'] = data['ARO_description'].encode('utf-8')
fasta_name_prefix = '.'.join([
card_record.CardRecord._ARO_name_to_fasta_name(
data['ARO_name']),
data['ARO_accession'],
])
for card_key, gi, genbank_id, start, end, dna_seq, protein_seq in data[
'dna_seqs_and_ids']:
if dna_seq == '':
print('Empty dna sequence',
gene_key,
data['ARO_id'],
data['ARO_accession'],
sep='\t',
file=f_out_log)
continue
fasta_id = '.'.join([
fasta_name_prefix, genbank_id, start + '-' + end, card_key
])
fasta = pyfastaq.sequences.Fasta(fasta_id, dna_seq)
if gi != 'NA':
gene_tuple = fasta.make_into_gene()
if gene_tuple is None:
print('Could not make gene from sequence',
fasta.id,
sep='\t',
file=f_out_log)
continue
else:
translated = gene_tuple[0].translate()
if gene_tuple[0][:3] in pyfastaq.genetic_codes.starts[
self.genetic_code]:
translated.seq = 'M' + translated.seq[1:]
if translated.seq[:-1] != protein_seq:
print(
'Translation of inferred gene dna sequence does not match protein sequence',
fasta.id,
sep='\t',
file=f_out_log)
continue
print(fasta, file=f_out_fa)
if gi == 'NA':
gene_or_not = '0'
variant_only = '0'
elif len(data['snps']) == 0:
gene_or_not = '1'
variant_only = '0'
else:
gene_or_not = '1'
variant_only = '1'
print(fasta.id,
gene_or_not,
variant_only,
'.',
'.',
data['ARO_name'],
sep='\t',
file=f_out_tsv)
if len(data['snps']) == 0 and data['ARO_description'] != '':
print(fasta.id,
gene_or_not,
variant_only,
'.',
'.',
data['ARO_description'],
sep='\t',
file=f_out_tsv)
else:
for snp in data['snps']:
if data['ARO_description'] != '':
print(fasta.id,
gene_or_not,
variant_only,
snp,
'.',
data['ARO_description'],
sep='\t',
file=f_out_tsv)
pyfastaq.utils.close(f_out_fa)
pyfastaq.utils.close(f_out_tsv)
pyfastaq.utils.close(f_out_log)
os.chdir(current_dir)
if not self.debug:
common.rmtree(tmpdir)
print('Extracted data and written ARIBA input files\n')
print('Finished. Final files are:',
final_fasta,
final_tsv,
sep='\n\t',
end='\n\n')
print('You can use them with ARIBA like this:')
print('ariba prepareref -f', final_fasta, '-m', final_tsv,
'output_directory\n')
print('If you use this downloaded data, please cite:')
print(
'"CARD 2020: antibiotic resistome surveillance with the comprehensive antibiotic resistance database", Alcock et al 2020, PMID: 31665441'
)
print('and in your methods say that version', self.version,
'of the database was used')
def run_smalt(
reads_fwd,
reads_rev,
ref_fa,
out_prefix,
index_k=9,
index_s=2,
threads=1,
max_insert=1000,
minid=0.9,
sort=False,
extra_smalt_map_ops='-x',
samtools='samtools',
smalt='smalt',
verbose=False
):
if extra_smalt_map_ops is None:
extra_smalt_map_ops = ''
map_index = out_prefix + '.map_index'
clean_files = [map_index + '.' + x for x in ['smi', 'sma']]
index_cmd = ' '.join([
smalt, 'index',
'-k', str(index_k),
'-s', str(index_s),
map_index,
ref_fa
])
map_cmd = smalt + ' map ' + extra_smalt_map_ops + ' '
# depending on OS, -n can break smalt, so only use -n if it's > 1.
if threads > 1:
map_cmd += '-n ' + str(threads) + ' -O '
if reads_rev is None:
map_cmd += ' '.join([
'-y', str(minid),
map_index,
reads_fwd,
])
else:
map_cmd += ' '.join([
'-i', str(max_insert),
'-y', str(minid),
map_index,
reads_fwd,
reads_rev,
])
map_cmd += ' | ' + samtools + ' view'
final_bam = out_prefix + '.bam'
if sort:
intermediate_bam = out_prefix + '.unsorted.bam'
else:
intermediate_bam = final_bam
map_cmd += ' -bS -T ' + ref_fa + ' - > ' + intermediate_bam
common.syscall(index_cmd, verbose=verbose)
common.syscall(map_cmd, verbose=verbose)
if sort:
threads = min(4, threads)
thread_mem = int(500 / threads)
sort_cmd = samtools + ' sort -@' + str(threads) + ' -m ' + str(thread_mem) + 'M ' + intermediate_bam + ' ' + out_prefix
index_cmd = samtools + ' index ' + final_bam
common.syscall(sort_cmd, verbose=verbose)
common.syscall(index_cmd, verbose=verbose)
for fname in clean_files:
os.unlink(fname)