# HG changeset patch # User peterjc # Date 1307481889 14400 # Node ID eb852527b26c2e612eb972448eaeb8fd1037bea0 Migrated tool version 0.0.1 from old tool shed archive to new tool shed repository diff -r 000000000000 -r eb852527b26c tools/filters/sff_filter_by_id.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/filters/sff_filter_by_id.py Tue Jun 07 17:24:49 2011 -0400 @@ -0,0 +1,97 @@ +#!/usr/bin/env python +"""Filter an SSF file with IDs from a tabular file, e.g. from BLAST. + +Takes five command line options, tabular filename, ID column numbers +(comma separated list using one based counting), input SFF filename, and +two output SFF filenames (for records with and without the given IDs). + +Any Roche XML manifest in the input file is preserved in both output files. + +Note in the default NCBI BLAST+ tabular output, the query sequence ID is +in column one, and the ID of the match from the database is in column two. +Here sensible values for the column numbers would therefore be "1" or "2". +""" +import sys + +def stop_err(msg, err=1): + sys.stderr.write(msg.rstrip() + "\n") + sys.exit(err) + +try: + from Bio.SeqIO.SffIO import SffIterator, SffWriter +except ImportError: + stop_err("Requires Biopython 1.54 or later") + +try: + from Bio.SeqIO.SffIO import ReadRocheXmlManifest +except ImportError: + #Prior to Biopython 1.56 this was a private function + from Bio.SeqIO.SffIO import _sff_read_roche_index_xml as ReadRocheXmlManifest + +#Parse Command Line +try: + tabular_file, cols_arg, in_file, out_positive_file, out_negative_file = sys.argv[1:] +except ValueError: + stop_err("Expected five arguments, got %i:\n%s" % (len(sys.argv)-1, " ".join(sys.argv))) +try: + columns = [int(arg)-1 for arg in cols_arg.split(",")] +except ValueError: + stop_err("Expected list of columns (comma separated integers), got %s" % cols_arg) + +#Read tabular file and record all specified identifiers +ids = set() +handle = open(tabular_file, "rU") +if len(columns)>1: + #General case of many columns + for line in handle: + if line.startswith("#"): + #Ignore comments + continue + parts = line.rstrip("\n").split("\t") + for col in columns: + ids.add(parts[col]) + print "Using %i IDs from %i columns of tabular file" % (len(ids), len(columns)) +else: + #Single column, special case speed up + col = columns[0] + for line in handle: + if not line.startswith("#"): + ids.add(line.rstrip("\n").split("\t")[col]) + print "Using %i IDs from tabular file" % (len(ids)) +handle.close() + +#Now write filtered SFF file based on IDs from BLAST file +in_handle = open(in_file, "rb") #must be binary mode! +try: + manifest = ReadRocheXmlManifest(in_handle) +except ValueError: + manifest = None + +#This makes two passes though the SFF file with isn't so efficient, +#but this makes the code simple. + +if out_positive_file != "-": + out_handle = open(out_positive_file, "wb") + writer = SffWriter(out_handle, xml=manifest) + in_handle.seek(0) #start again after getting manifest + pos_count = writer.write_file(rec for rec in SffIterator(in_handle) if rec.id in ids) + out_handle.close() + +if out_negative_file != "-": + out_handle = open(out_negative_file, "wb") + writer = SffWriter(out_handle, xml=manifest) + in_handle.seek(0) #start again + neg_count = writer.write_file(rec for rec in SffIterator(in_handle) if rec.id not in ids) + out_handle.close() + +#And we're done +in_handle.close() + +if out_positive_file != "-" and out_negative_file != "-": + print "%i with and %i without specified IDs" % (pos_count, neg_count) +elif out_positive_file != "-": + print "%i with specified IDs" % pos_count +elif out_negative_file != "-": + print "%i without specified IDs" % neg_count +else: + stop_err("Neither output file requested") diff -r 000000000000 -r eb852527b26c tools/filters/sff_filter_by_id.txt --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/filters/sff_filter_by_id.txt Tue Jun 07 17:24:49 2011 -0400 @@ -0,0 +1,74 @@ +Galaxy tool to filter SFF sequences by ID +========================================= + +This tool is copyright 2010 by Peter Cock, SCRI, UK. All rights reserved. +See the licence text below. + +This tool is a short Python script (using the Biopython library functions) which +divides an SFF file in two, those sequences with or without an ID present in +the specified column(s) of a tabular file. Example uses include filtering based +on search results from a tool like NCBI BLAST before assembly. + +There are just two files to install: + +* sff_filter_by_id.py (the Python script) +* sff_filter_by_id.xml (the Galaxy tool definition) + +The suggested location is in the Galaxy folder tools/filters next to the tool +for calling sff_extract.py for converting SFF to FASTQ or FASTA + QUAL. + +You will also need to modify the tools_conf.xml file to tell Galaxy to offer +the tool. One suggested location is next to the sff_extractor.xml entry. Simply +add the line: + + + +You will also need to install Biopython 1.54 or later. That's it. + + +History +======= + +v0.0.1 - Initial version + + +Developers +========== + +This script and similar versions for FASTA and FASTQ files are currently being +developed on the following hg branch: +http://bitbucket.org/peterjc/galaxy-central/src/fasta_filter + +For making the "Galaxy Tool Shed" http://community.g2.bx.psu.edu/ tarball use +the following command from the Galaxy root folder: + +tar -czf sff_filter_by_id.tar.gz tools/filters/sff_filter_by_id.* + +Check this worked: + +$ tar -tzf sff_filter_by_id.tar.gz +filter/sff_filter_by_id.py +filter/sff_filter_by_id.txt +filter/sff_filter_by_id.xml + + +Licence (MIT/BSD style) +======================= + +Permission to use, copy, modify, and distribute this software and its +documentation with or without modifications and for any purpose and +without fee is hereby granted, provided that any copyright notices +appear in all copies and that both those copyright notices and this +permission notice appear in supporting documentation, and that the +names of the contributors or copyright holders not be used in +advertising or publicity pertaining to distribution of the software +without specific prior permission. + +THE CONTRIBUTORS AND COPYRIGHT HOLDERS OF THIS SOFTWARE DISCLAIM ALL +WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE +CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT +OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS +OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE +OR PERFORMANCE OF THIS SOFTWARE. diff -r 000000000000 -r eb852527b26c tools/filters/sff_filter_by_id.xml --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/filters/sff_filter_by_id.xml Tue Jun 07 17:24:49 2011 -0400 @@ -0,0 +1,76 @@ + + from a tabular file + +sff_filter_by_id.py $input_tabular $columns $input_sff +#if $output_choice_cond.output_choice=="both" + $output_pos $output_neg +#elif $output_choice_cond.output_choice=="pos" + $output_pos - +#elif $output_choice_cond.output_choice=="neg" + - $output_neg +#end if + + + + + + + + + + + + + + + + + + + + + + output_choice_cond["output_choice"] != "neg" + + + output_choice_cond["output_choice"] != "pos" + + + + + + Bio + + + +**What it does** + +By default it divides a Standard Flowgram Format (SFF) file in two, those +sequences with or without an ID present in the tabular file column(s) specified. +You can opt to have a single output file of just the matching records, or just +the non-matching ones. + +Note that the order of sequences in the original SFF file is preserved, as is +any Roche XML Manifest. Also, if any sequences share an identifier (which would +be very unusual in SFF files, duplicates are not removed). + +**Example Usage** + +You may have performed some kind of contamination search, for example running +BLASTN against a database of cloning vectors or bacteria, giving you a tabular +file containing read identifiers. You could use this tool to extract only the +reads without BLAST matches (i.e. those which do not match your contaminant +database). + +** Citation ** + +This tool uses Biopython to read and write SFF files. If you use this tool in +scientific work leading to a publication, please cite the Biopython application +note: + +Cock et al 2009. Biopython: freely available Python tools for computational +molecular biology and bioinformatics. Bioinformatics 25(11) 1422-3. +http://dx.doi.org/10.1093/bioinformatics/btp163 pmid:19304878. + + +