Mercurial > repos > cjav > smalt
diff tools/smalt_wrapper.py @ 1:54855bd8d107 draft default tip
First attempt to get tool_dependencies.xml right.
author | cjav |
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date | Wed, 20 Mar 2013 17:07:14 -0400 |
parents | 747433a6de00 |
children |
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--- a/tools/smalt_wrapper.py Wed Feb 13 13:27:44 2013 -0500 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,195 +0,0 @@ -#!/usr/bin/env python - -""" -Runs Smalt on single-end or paired-end data. -Produces a SAM file containing the mappings. -Works with Smalt version 0.7.1. - -usage: smalt_wrapper.py [options] - -See below for options -""" - -import optparse, os, shutil, subprocess, sys, tempfile - -def stop_err( msg ): - sys.stderr.write( '%s\n' % msg ) - sys.exit() - -def __main__(): - #Parse Command Line - parser = optparse.OptionParser() - parser.add_option( '-t', '--threads', dest='threads', help='The number of threads to use' ) - parser.add_option( '-r', '--ref', dest='ref', help='The reference genome to use or index' ) - parser.add_option( '-f', '--input1', dest='fastq', help='The (forward) fastq file to use for the mapping' ) - parser.add_option( '-F', '--input2', dest='rfastq', help='The reverse fastq file to use for mapping if paired-end data' ) - parser.add_option( '-u', '--output', dest='output', help='The file to save the output (SAM format)' ) - parser.add_option( '-g', '--genAlignType', dest='genAlignType', help='The type of pairing (single or paired)' ) - parser.add_option( '-p', '--params', dest='params', help='Parameter setting to use (pre_set or full)' ) - parser.add_option( '-s', '--fileSource', dest='fileSource', help='Whether to use a previously indexed reference sequence or one form history (indexed or history)' ) - parser.add_option( '-x', '--exhaustiveSearch', dest='exhaustiveSearch', help='This flag triggers a more exhaustive search for alignments at the cost of decreased speed' ) - parser.add_option( '-c', '--minCover', dest='minCover', help='Only consider mappings where the k-mer word seeds cover the query read to a minimum extent' ) - parser.add_option( '-d', '--scorDiff', dest='scorDiff', help='Set a threshold of the Smith-Waterman alignment score relative to the maximum score' ) - parser.add_option( '-i', '--insertMax', dest='insertMax', help='Maximum insert size (Only in paired-end mode)' ) - parser.add_option( '-j', '--insertMin', dest='insertMin', help='Minimum insert size (Only in paired-end mode)' ) - parser.add_option( '-l', '--pairTyp', dest='pairTyp', help='Type of read pair library, can be either pe, mp or pp' ) - parser.add_option( '-m', '--minScor', dest='minScor', help='Sets an absolute threshold of the Smith-Waterman scores' ) - parser.add_option( '-a', '--partialAlignments', dest='partialAlignments', help='Report partial alignments if they are complementary on the read (split reads)' ) - parser.add_option( '-q', '--minBasq', dest='minBasq', help='Sets a base quality threshold (0 <= minbasq <= 10, default 0)' ) - parser.add_option( '-e', '--seed', dest='seed', help='If <seed> >= 0 report an alignment selected at random where there are multiple mappings with the same best alignment score. With <seed> = 0 (default) a seed is derived from the current calendar time. If <seed> < 0 reads with multiple best mappings are reported as "not mapped".' ) - parser.add_option( '-w', '--complexityWeighted', dest='complexityWeighted', help='Smith-Waterman scores are complexity weighted' ) - parser.add_option( '-y', '--minId', dest='minId', help='Sets an identity threshold for a mapping to be reported' ) - parser.add_option( '-D', '--dbkey', dest='dbkey', help='Dbkey for reference genome' ) - parser.add_option( '-X', '--do_not_build_index', dest='do_not_build_index', action='store_true', help="Don't build index" ) - parser.add_option( '-H', '--suppressHeader', dest='suppressHeader', help='Suppress header' ) - (options, args) = parser.parse_args() - - # output version # of tool - try: - tmp = tempfile.NamedTemporaryFile().name - tmp_stdout = open( tmp, 'wb' ) - proc = subprocess.Popen( args='smalt 2>&1', shell=True, stdout=tmp_stdout ) - tmp_stdout.close() - returncode = proc.wait() - stdout = None - for line in open( tmp_stdout.name, 'rb' ): - if line.lower().find( 'version' ) >= 0: - stdout = line.strip() - break - if stdout: - sys.stdout.write( 'SMALT %s\n' % stdout ) - else: - raise Exception - except: - sys.stdout.write( 'Could not determine SMALT version\n' ) - - fastq = options.fastq - if options.rfastq: - rfastq = options.rfastq - - # make temp directory for placement of indices - tmp_index_dir = tempfile.mkdtemp() - tmp_dir = tempfile.mkdtemp() - # index if necessary - if options.fileSource == 'history' and not options.do_not_build_index: - ref_file = tempfile.NamedTemporaryFile( dir=tmp_index_dir ) - ref_file_name = ref_file.name - ref_file.close() - os.symlink( options.ref, ref_file_name ) - cmd1 = 'smalt index %s %s' % ( ref_file_name, ref_file_name ) - try: - tmp = tempfile.NamedTemporaryFile( dir=tmp_index_dir ).name - tmp_stderr = open( tmp, 'wb' ) - proc = subprocess.Popen( args=cmd1, shell=True, cwd=tmp_index_dir, stderr=tmp_stderr.fileno() ) - returncode = proc.wait() - tmp_stderr.close() - # get stderr, allowing for case where it's very large - tmp_stderr = open( tmp, 'rb' ) - stderr = '' - buffsize = 1048576 - try: - while True: - stderr += tmp_stderr.read( buffsize ) - if not stderr or len( stderr ) % buffsize != 0: - break - except OverflowError: - pass - tmp_stderr.close() - if returncode != 0: - raise Exception, stderr - except Exception, e: - # clean up temp dirs - if os.path.exists( tmp_index_dir ): - shutil.rmtree( tmp_index_dir ) - if os.path.exists( tmp_dir ): - shutil.rmtree( tmp_dir ) - stop_err( 'Error indexing reference sequence. ' + str( e ) ) - else: - ref_file_name = options.ref - - # set up aligning and generate aligning command options - if options.params == 'pre_set': - aligning_cmds = '-n %s ' % ( options.threads ) - gen_alignment_cmds = '' - else: - if options.exhaustiveSearch == 'true': - exhaustiveSearch = '-x' - minCover = '-c %s' % options.minCover - else: - exhaustiveSearch = '' - minCover = '' - if options.partialAlignments == 'true': - partialAlignments = '-x' - else: - partialAlignments = '' - if options.complexityWeighted == 'true': - complexityWeighted = '-w' - else: - complexityWeighted = '' - aligning_cmds = '-d %s -m %s -q %s -r %s -y %s' % \ - ( options.scorDiff, options.minScor, options.minBasq, options.seed, options.minId ) - if options.genAlignType == 'paired': - gen_alignment_cmds = '-i %s -j %s -l %s' % ( options.insertMax, options.insertMin, options.pairTyp ) - else: - gen_alignment_cmds = '' - # prepare actual aligning and generate aligning commands - if options.genAlignType == 'paired': - cmd = 'smalt map %s %s -o %s %s %s ' % ( aligning_cmds, gen_alignment_cmds, options.output, ref_file_name, fastq, rfastq ) - else: - cmd = 'smalt map %s -o %s %s %s ' % ( aligning_cmds, options.output, ref_file_name, fastq ) - # perform alignments - buffsize = 1048576 - try: - # need to nest try-except in try-finally to handle 2.4 - try: - # align - try: - tmp = tempfile.NamedTemporaryFile( dir=tmp_dir ).name - tmp_stderr = open( tmp, 'wb' ) - proc = subprocess.Popen( args=cmd, shell=True, cwd=tmp_dir, stderr=tmp_stderr.fileno() ) - returncode = proc.wait() - tmp_stderr.close() - # get stderr, allowing for case where it's very large - tmp_stderr = open( tmp, 'rb' ) - stderr = '' - try: - while True: - stderr += tmp_stderr.read( buffsize ) - if not stderr or len( stderr ) % buffsize != 0: - break - except OverflowError: - pass - tmp_stderr.close() - if returncode != 0: - raise Exception, stderr - except Exception, e: - raise Exception, 'Error aligning sequence. ' + str( e ) - # remove header if necessary - if options.suppressHeader == 'true': - tmp_out = tempfile.NamedTemporaryFile( dir=tmp_dir) - tmp_out_name = tmp_out.name - tmp_out.close() - try: - shutil.move( options.output, tmp_out_name ) - except Exception, e: - raise Exception, 'Error moving output file before removing headers. ' + str( e ) - fout = file( options.output, 'w' ) - for line in file( tmp_out.name, 'r' ): - if not ( line.startswith( '@HD' ) or line.startswith( '@SQ' ) or line.startswith( '@RG' ) or line.startswith( '@PG' ) or line.startswith( '@CO' ) ): - fout.write( line ) - fout.close() - # check that there are results in the output file - if os.path.getsize( options.output ) > 0: - sys.stdout.write( 'SMALT run on %s-end data' % options.genAlignType ) - else: - raise Exception, 'The output file is empty. You may simply have no matches, or there may be an error with your input file or settings.' - except Exception, e: - stop_err( 'The alignment failed.\n' + str( e ) ) - finally: - # clean up temp dir - if os.path.exists( tmp_index_dir ): - shutil.rmtree( tmp_index_dir ) - if os.path.exists( tmp_dir ): - shutil.rmtree( tmp_dir ) - -if __name__=="__main__": __main__()