def main():
"""
%prog database.fa query.fa [options]
Run LASTZ similar to the BLAST interface, and generates -m8 tabular format
"""
p = OptionParser(main.__doc__)
supported_formats = tuple(x.strip() for x in \
"lav, lav+text, axt, axt+, maf, maf+, maf-, sam, softsam, "\
"sam-, softsam-, cigar, BLASTN, BLASTN-, differences, rdotplot, text".split(','))
p.add_option("--format", default="BLASTN-", choices=supported_formats,
help="Ooutput format [default: %default]")
p.add_option("--path", dest="lastz_path", default=None,
help="specify LASTZ path")
p.add_option("--mask", dest="mask", default=False, action="store_true",
help="treat lower-case letters as mask info [default: %default]")
p.add_option("--similar", default=False, action="store_true",
help="Use options tuned for close comparison [default: %default]")
p.set_cpus(cpus=32)
p.set_params()
p.set_outfile()
opts, args = p.parse_args()
if len(args) != 2:
sys.exit(p.print_help())
bfasta_fn, afasta_fn = args
for fn in (afasta_fn, bfasta_fn):
assert op.exists(fn)
afasta_fn = op.abspath(afasta_fn)
bfasta_fn = op.abspath(bfasta_fn)
out_fh = must_open(opts.outfile, "w")
extra = opts.extra
if opts.similar:
extra += similarOptions
lastz_bin = opts.lastz_path or "lastz"
assert lastz_bin.endswith("lastz"), "You need to include lastz in your path"
mask = opts.mask
cpus = opts.cpus
logging.debug("Dispatch job to %d cpus" % cpus)
format = opts.format
blastline = (format == "BLASTN-")
# The axt, maf, etc. format can only be run on splitted database (i.e. one
# FASTA record per file). The splitted files are then parallelized for the
# computation, as opposed to splitting queries through "subsample".
outdir = "outdir"
if not blastline:
from jcvi.formats.fasta import Fasta
from jcvi.formats.chain import faToTwoBit
mkdir(outdir)
bfasta_2bit = faToTwoBit(bfasta_fn)
bids = list(Fasta(bfasta_fn, lazy=True).iterkeys_ordered())
apf = op.basename(afasta_fn).split(".")[0]
args = []
# bfasta_fn, afasta_fn, outfile, lastz_bin, extra, mask, format
for id in bids:
bfasta = "/".join((bfasta_2bit, id))
outfile = op.join(outdir, "{0}.{1}.{2}".format(apf, id, format))
args.append((bfasta, afasta_fn, outfile, \
lastz_bin, extra, mask, format))
p = Pool(cpus)
p.map(lastz_2bit, args)
return
lock = Lock()
args = [(k + 1, cpus, bfasta_fn, afasta_fn, out_fh,
lock, lastz_bin, extra, mask) for k in xrange(cpus)]
g = Jobs(target=lastz, args=args)
g.run()
def main():
"""
%prog database.fa query.fa [options]
Run LASTZ similar to the BLAST interface, and generates -m8 tabular format
"""
p = OptionParser(main.__doc__)
supported_formats = tuple(x.strip() for x in \
"lav, lav+text, axt, axt+, maf, maf+, maf-, sam, softsam, "\
"sam-, softsam-, cigar, BLASTN, BLASTN-, differences, rdotplot, text".split(','))
p.add_option("--format", default="BLASTN-", choices=supported_formats,
help="Ooutput format [default: %default]")
p.add_option("--path", dest="lastz_path", default=None,
help="specify LASTZ path")
p.add_option("--mask", dest="mask", default=False, action="store_true",
help="treat lower-case letters as mask info [default: %default]")
p.add_option("--similar", default=False, action="store_true",
help="Use options tuned for close comparison [default: %default]")
p.set_cpus(cpus=32)
p.set_params()
p.set_outfile()
opts, args = p.parse_args()
if len(args) != 2:
sys.exit(p.print_help())
bfasta_fn, afasta_fn = args
for fn in (afasta_fn, bfasta_fn):
assert op.exists(fn)
afasta_fn = op.abspath(afasta_fn)
bfasta_fn = op.abspath(bfasta_fn)
out_fh = must_open(opts.outfile, "w")
extra = opts.extra
if opts.similar:
extra += similarOptions
lastz_bin = opts.lastz_path or "lastz"
assert lastz_bin.endswith("lastz"), "You need to include lastz in your path"
mask = opts.mask
cpus = opts.cpus
logging.debug("Dispatch job to %d cpus" % cpus)
format = opts.format
blastline = (format == "BLASTN-")
# The axt, maf, etc. format can only be run on splitted database (i.e. one
# FASTA record per file). The splitted files are then parallelized for the
# computation, as opposed to splitting queries through "subsample".
outdir = "outdir"
if not blastline:
from jcvi.formats.fasta import Fasta
from jcvi.formats.chain import faToTwoBit
mkdir(outdir)
bfasta_2bit = faToTwoBit(bfasta_fn)
bids = list(Fasta(bfasta_fn, lazy=True).iterkeys_ordered())
apf = op.basename(afasta_fn).split(".")[0]
args = []
# bfasta_fn, afasta_fn, outfile, lastz_bin, extra, mask, format
for id in bids:
bfasta = "/".join((bfasta_2bit, id))
outfile = op.join(outdir, "{0}.{1}.{2}".format(apf, id, format))
args.append((bfasta, afasta_fn, outfile, \
lastz_bin, extra, mask, format))
p = Pool(cpus)
p.map(lastz_2bit, args)
return
lock = Lock()
args = [(k + 1, cpus, bfasta_fn, afasta_fn, out_fh,
lock, lastz_bin, extra, mask) for k in xrange(cpus)]
g = Jobs(target=lastz, args=args)
g.run()
