Beispiel #1
0
    def _run(self):
        print('{:_^79}'.format(' LOG FILE START ' + self.name + ' '), file=self.log_fh, flush=True)

        print('Choosing best reference sequence:', file=self.log_fh, flush=True)
        seq_chooser = best_seq_chooser.BestSeqChooser(
            self.all_reads1,
            self.all_reads2,
            self.references_fa,
            self.log_fh,
            samtools_exe=self.extern_progs.exe('samtools'),
            bowtie2_exe=self.extern_progs.exe('bowtie2'),
            bowtie2_preset=self.bowtie2_preset,
            threads=1,
        )
        self.ref_sequence = seq_chooser.best_seq(self.reference_fa)
        self._clean_file(self.references_fa)
        self._clean_file(self.references_fa + '.fai')

        if self.ref_sequence is None:
            self.status_flag.add('ref_seq_choose_fail')
            self.assembled_ok = False
        else:
            wanted_reads = self._number_of_reads_for_assembly(self.reference_fa, self.reads_insert, self.total_reads_bases, self.total_reads, self.assembly_coverage)
            made_reads = self._make_reads_for_assembly(wanted_reads, self.total_reads, self.all_reads1, self.all_reads2, self.reads_for_assembly1, self.reads_for_assembly2, random_seed=self.random_seed)
            print('\nUsing', made_reads, 'from a total of', self.total_reads, 'for assembly.', file=self.log_fh, flush=True)
            print('Assembling reads:', file=self.log_fh, flush=True)
            self.ref_sequence_type = self.refdata.sequence_type(self.ref_sequence.id)
            assert self.ref_sequence_type is not None
            self.assembly = assembly.Assembly(
              self.reads_for_assembly1,
              self.reads_for_assembly2,
              self.reference_fa,
              self.assembly_dir,
              self.final_assembly_fa,
              self.final_assembly_bam,
              self.log_fh,
              scaff_name_prefix=self.ref_sequence.id,
              kmer=self.assembly_kmer,
              assembler=self.assembler,
              spades_other_options=self.spades_other_options,
              sspace_k=self.sspace_k,
              sspace_sd=self.sspace_sd,
              reads_insert=self.reads_insert,
              extern_progs=self.extern_progs,
              clean=self.clean
            )

            self.assembly.run()
            self.assembled_ok = self.assembly.assembled_ok
            self._clean_file(self.reads_for_assembly1)
            self._clean_file(self.reads_for_assembly2)
            if self.clean:
                print('Deleting Assembly directory', self.assembly_dir, file=self.log_fh, flush=True)
                shutil.rmtree(self.assembly_dir)

        if self.assembled_ok:
            print('\nAssembly was successful\n\nMapping reads to assembly:', file=self.log_fh, flush=True)

            mapping.run_bowtie2(
                self.all_reads1,
                self.all_reads2,
                self.final_assembly_fa,
                self.final_assembly_bam[:-4],
                threads=1,
                sort=True,
                samtools=self.extern_progs.exe('samtools'),
                bowtie2=self.extern_progs.exe('bowtie2'),
                bowtie2_preset=self.bowtie2_preset,
                verbose=True,
                verbose_filehandle=self.log_fh
            )

            if self.assembly.has_contigs_on_both_strands:
                self.status_flag.add('hit_both_strands')

            print('\nMaking and checking scaffold graph', file=self.log_fh, flush=True)

            if not self.assembly.scaff_graph_ok:
                self.status_flag.add('scaffold_graph_bad')

            print('Comparing assembly against reference sequence', file=self.log_fh, flush=True)
            self.assembly_compare = assembly_compare.AssemblyCompare(
              self.final_assembly_fa,
              self.assembly.sequences,
              self.reference_fa,
              self.ref_sequence,
              self.assembly_compare_prefix,
              self.refdata,
              nucmer_min_id=self.nucmer_min_id,
              nucmer_min_len=self.nucmer_min_len,
              nucmer_breaklen=self.nucmer_breaklen,
              assembled_threshold=self.assembled_threshold,
              unique_threshold=self.unique_threshold,
              max_gene_nt_extend=self.max_gene_nt_extend,
            )
            self.assembly_compare.run()
            self.status_flag = self.assembly_compare.update_flag(self.status_flag)

            nucmer_hits_to_ref = assembly_compare.AssemblyCompare.nucmer_hits_to_ref_coords(self.assembly_compare.nucmer_hits)
            assembly_variants_obj = assembly_variants.AssemblyVariants(self.refdata, self.assembly_compare.nucmer_snps_file)
            self.assembly_variants = assembly_variants_obj.get_variants(self.ref_sequence.id, nucmer_hits_to_ref)

            for var_list in self.assembly_variants.values():
                for var in var_list:
                    if var[3] not in ['.', 'SYN', None]:
                        self.status_flag.add('has_nonsynonymous_variants')
                        break

                if self.status_flag.has('has_nonsynonymous_variants'):
                    break


            print('\nCalling variants with samtools:', file=self.log_fh, flush=True)

            self.samtools_vars = samtools_variants.SamtoolsVariants(
                self.final_assembly_fa,
                self.final_assembly_bam,
                self.samtools_vars_prefix,
                log_fh=self.log_fh,
                samtools_exe=self.extern_progs.exe('samtools'),
                bcftools_exe=self.extern_progs.exe('bcftools'),
                bcf_min_dp=self.bcf_min_dp,
                bcf_min_dv=self.bcf_min_dv,
                bcf_min_dv_over_dp=self.bcf_min_dv_over_dp,
                bcf_min_qual=self.bcf_min_qual,
            )
            self.samtools_vars.run()

            self.total_contig_depths = self.samtools_vars.total_depth_per_contig(self.samtools_vars.read_depths_file)

            if self.samtools_vars.variants_in_coords(self.assembly_compare.assembly_match_coords(), self.samtools_vars.vcf_file):
                self.status_flag.add('variants_suggest_collapsed_repeat')
        else:
            print('\nAssembly failed\n', file=self.log_fh, flush=True)
            self.status_flag.add('assembly_fail')


        print('\nMaking report lines', file=self.log_fh, flush=True)
        self.report_lines = report.report_lines(self)
        self._clean()
        atexit.unregister(self._atexit)
Beispiel #2
0
    def _run(self):
        print('{:_^79}'.format(' LOG FILE START ' + self.name + ' '),
              file=self.log_fh,
              flush=True)

        if self.total_reads == 0:
            print('No reads left after filtering with cdhit',
                  file=self.log_fh,
                  flush=True)
            self.assembled_ok = False
        else:
            wanted_reads = self._number_of_reads_for_assembly(
                self.longest_ref_length, self.reads_insert,
                self.total_reads_bases, self.total_reads,
                self.assembly_coverage)
            made_reads = self._make_reads_for_assembly(
                wanted_reads,
                self.total_reads,
                self.all_reads1,
                self.all_reads2,
                self.reads_for_assembly1,
                self.reads_for_assembly2,
                random_seed=self.random_seed)
            print('\nUsing',
                  made_reads,
                  'from a total of',
                  self.total_reads,
                  'for assembly.',
                  file=self.log_fh,
                  flush=True)
            print('Assembling reads:', file=self.log_fh, flush=True)

            self._update_threads()
            self.assembly = assembly.Assembly(
                self.reads_for_assembly1,
                self.reads_for_assembly2,
                self.reference_fa,
                self.references_fa,
                self.assembly_dir,
                self.final_assembly_fa,
                self.final_assembly_bam,
                self.log_fh,
                self.all_refs_fasta,
                contig_name_prefix=self.name,
                assembler=self.assembler,
                extern_progs=self.extern_progs,
                clean=self.clean,
                spades_mode=self.spades_mode,
                spades_options=self.spades_options,
                threads=self.threads)

            self.assembly.run()
            self.assembled_ok = self.assembly.assembled_ok
            self._clean_file(self.reads_for_assembly1)
            self._clean_file(self.reads_for_assembly2)
            if self.clean:
                print('Deleting Assembly directory',
                      self.assembly_dir,
                      file=self.log_fh,
                      flush=True)
                shutil.rmtree(self.assembly_dir, ignore_errors=True)

        if self.assembled_ok and self.assembly.ref_seq_name is not None:
            self.ref_sequence = self.refdata.sequence(
                self.assembly.ref_seq_name)
            is_gene, is_variant_only = self.refdata.sequence_type(
                self.ref_sequence.id)
            self.is_gene = '1' if is_gene == 'p' else '0'
            self.is_variant_only = '1' if is_variant_only else '0'

            print('\nAssembly was successful\n\nMapping reads to assembly:',
                  file=self.log_fh,
                  flush=True)
            self._update_threads()
            mapping.run_bowtie2(
                self.all_reads1,
                self.all_reads2,
                self.final_assembly_fa,
                self.final_assembly_bam[:-4],
                threads=self.threads,
                sort=True,
                bowtie2=self.extern_progs.exe('bowtie2'),
                bowtie2_preset='very-sensitive-local',
                bowtie2_version=self.extern_progs.version('bowtie2'),
                verbose=True,
                verbose_filehandle=self.log_fh)

            if self.assembly.has_contigs_on_both_strands:
                self.status_flag.add('hit_both_strands')

            print('\nMaking and checking scaffold graph',
                  file=self.log_fh,
                  flush=True)

            if not self.assembly.scaff_graph_ok:
                self.status_flag.add('scaffold_graph_bad')

            print('Comparing assembly against reference sequence',
                  file=self.log_fh,
                  flush=True)
            self.assembly_compare = assembly_compare.AssemblyCompare(
                self.final_assembly_fa,
                self.assembly.sequences,
                self.reference_fa,
                self.ref_sequence,
                self.assembly_compare_prefix,
                self.refdata,
                nucmer_min_id=self.nucmer_min_id,
                nucmer_min_len=self.nucmer_min_len,
                nucmer_breaklen=self.nucmer_breaklen,
                assembled_threshold=self.assembled_threshold,
                unique_threshold=self.unique_threshold,
                max_gene_nt_extend=self.max_gene_nt_extend,
            )
            self.assembly_compare.run()
            self.status_flag = self.assembly_compare.update_flag(
                self.status_flag)

            allowed_ctg_pos, allowed_ref_pos = assembly_compare.AssemblyCompare.nucmer_hits_to_ref_and_qry_coords(
                self.assembly_compare.nucmer_hits)
            assembly_variants_obj = assembly_variants.AssemblyVariants(
                self.refdata, self.assembly_compare.nucmer_snps_file)
            self.assembly_variants = assembly_variants_obj.get_variants(
                self.ref_sequence.id, allowed_ctg_pos, allowed_ref_pos)

            for var_list in self.assembly_variants.values():
                for var in var_list:
                    if var[3] not in ['.', 'SYN', None]:
                        self.status_flag.add('has_variant')
                        break

                if self.status_flag.has('has_variant'):
                    break

            print('\nCalling variants with samtools:',
                  file=self.log_fh,
                  flush=True)

            self.samtools_vars = samtools_variants.SamtoolsVariants(
                self.final_assembly_fa,
                self.final_assembly_bam,
                self.samtools_vars_prefix,
                log_fh=self.log_fh,
                min_var_read_depth=self.min_var_read_depth,
                min_second_var_read_depth=self.min_second_var_read_depth,
                max_allele_freq=self.max_allele_freq)
            self.samtools_vars.run()

            self.total_contig_depths = self.samtools_vars.total_depth_per_contig(
                self.samtools_vars.contig_depths_file)

            self.variants_from_samtools = self.samtools_vars.variants_in_coords(
                self.assembly_compare.assembly_match_coords(),
                self.samtools_vars.vcf_file)
            if len(self.variants_from_samtools):
                self.status_flag.add('variants_suggest_collapsed_repeat')
        elif not self.assembled_ok:
            print('\nAssembly failed\n', file=self.log_fh, flush=True)
            self.status_flag.add('assembly_fail')
        elif self.assembly.ref_seq_name is None:
            print('\nCould not get closest reference sequence\n',
                  file=self.log_fh,
                  flush=True)
            self.status_flag.add('ref_seq_choose_fail')

        try:
            self.report_lines = report.report_lines(self)
        except:
            print('Error making report for cluster ',
                  self.name,
                  '... traceback:',
                  file=sys.stderr)
            traceback.print_exc(file=sys.stderr)
            raise Error('Error making report for cluster ' + self.name)

        self._clean()
        atexit.unregister(self._atexit)
Beispiel #3
0
    def _run(self):
        print('{:_^79}'.format(' LOG FILE START ' + self.name + ' '), file=self.log_fh, flush=True)

        if self.total_reads == 0:
            print('No reads left after filtering with cdhit', file=self.log_fh, flush=True)
            self.assembled_ok = False
        else:
            wanted_reads = self._number_of_reads_for_assembly(self.longest_ref_length, self.reads_insert, self.total_reads_bases, self.total_reads, self.assembly_coverage)
            made_reads = self._make_reads_for_assembly(wanted_reads, self.total_reads, self.all_reads1, self.all_reads2, self.reads_for_assembly1, self.reads_for_assembly2, random_seed=self.random_seed)
            print('\nUsing', made_reads, 'from a total of', self.total_reads, 'for assembly.', file=self.log_fh, flush=True)
            print('Assembling reads:', file=self.log_fh, flush=True)

            self.assembly = assembly.Assembly(
              self.reads_for_assembly1,
              self.reads_for_assembly2,
              self.reference_fa,
              self.references_fa,
              self.assembly_dir,
              self.final_assembly_fa,
              self.final_assembly_bam,
              self.log_fh,
              self.all_refs_fasta,
              contig_name_prefix=self.name,
              assembler=self.assembler,
              extern_progs=self.extern_progs,
              clean=self.clean
            )

            self.assembly.run()
            self.assembled_ok = self.assembly.assembled_ok
            self._clean_file(self.reads_for_assembly1)
            self._clean_file(self.reads_for_assembly2)
            if self.clean:
                print('Deleting Assembly directory', self.assembly_dir, file=self.log_fh, flush=True)
                shutil.rmtree(self.assembly_dir)


        if self.assembled_ok and self.assembly.ref_seq_name is not None:
            self.ref_sequence = self.refdata.sequence(self.assembly.ref_seq_name)
            is_gene, is_variant_only = self.refdata.sequence_type(self.ref_sequence.id)
            self.is_gene = '1' if is_gene == 'p' else '0'
            self.is_variant_only = '1' if is_variant_only else '0'

            print('\nAssembly was successful\n\nMapping reads to assembly:', file=self.log_fh, flush=True)

            mapping.run_bowtie2(
                self.all_reads1,
                self.all_reads2,
                self.final_assembly_fa,
                self.final_assembly_bam[:-4],
                threads=1,
                sort=True,
                bowtie2=self.extern_progs.exe('bowtie2'),
                bowtie2_preset='very-sensitive-local',
                bowtie2_version=self.extern_progs.version('bowtie2'),
                verbose=True,
                verbose_filehandle=self.log_fh
            )

            if self.assembly.has_contigs_on_both_strands:
                self.status_flag.add('hit_both_strands')

            print('\nMaking and checking scaffold graph', file=self.log_fh, flush=True)

            if not self.assembly.scaff_graph_ok:
                self.status_flag.add('scaffold_graph_bad')

            print('Comparing assembly against reference sequence', file=self.log_fh, flush=True)
            self.assembly_compare = assembly_compare.AssemblyCompare(
              self.final_assembly_fa,
              self.assembly.sequences,
              self.reference_fa,
              self.ref_sequence,
              self.assembly_compare_prefix,
              self.refdata,
              nucmer_min_id=self.nucmer_min_id,
              nucmer_min_len=self.nucmer_min_len,
              nucmer_breaklen=self.nucmer_breaklen,
              assembled_threshold=self.assembled_threshold,
              unique_threshold=self.unique_threshold,
              max_gene_nt_extend=self.max_gene_nt_extend,
            )
            self.assembly_compare.run()
            self.status_flag = self.assembly_compare.update_flag(self.status_flag)

            allowed_ctg_pos, allowed_ref_pos = assembly_compare.AssemblyCompare.nucmer_hits_to_ref_and_qry_coords(self.assembly_compare.nucmer_hits)
            assembly_variants_obj = assembly_variants.AssemblyVariants(self.refdata, self.assembly_compare.nucmer_snps_file)
            self.assembly_variants = assembly_variants_obj.get_variants(self.ref_sequence.id, allowed_ctg_pos, allowed_ref_pos)

            for var_list in self.assembly_variants.values():
                for var in var_list:
                    if var[3] not in ['.', 'SYN', None]:
                        self.status_flag.add('has_variant')
                        break

                if self.status_flag.has('has_variant'):
                    break


            print('\nCalling variants with samtools:', file=self.log_fh, flush=True)

            self.samtools_vars = samtools_variants.SamtoolsVariants(
                self.final_assembly_fa,
                self.final_assembly_bam,
                self.samtools_vars_prefix,
                log_fh=self.log_fh,
                min_var_read_depth=self.min_var_read_depth,
                min_second_var_read_depth=self.min_second_var_read_depth,
                max_allele_freq=self.max_allele_freq
            )
            self.samtools_vars.run()

            self.total_contig_depths = self.samtools_vars.total_depth_per_contig(self.samtools_vars.contig_depths_file)

            self.variants_from_samtools =  self.samtools_vars.variants_in_coords(self.assembly_compare.assembly_match_coords(), self.samtools_vars.vcf_file)
            if len(self.variants_from_samtools):
                self.status_flag.add('variants_suggest_collapsed_repeat')
        elif not self.assembled_ok:
            print('\nAssembly failed\n', file=self.log_fh, flush=True)
            self.status_flag.add('assembly_fail')
        elif self.assembly.ref_seq_name is None:
            print('\nCould not get closest reference sequence\n', file=self.log_fh, flush=True)
            self.status_flag.add('ref_seq_choose_fail')

        try:
            self.report_lines = report.report_lines(self)
        except:
            print('Error making report for cluster ', self.name, '... traceback:', file=sys.stderr)
            traceback.print_exc(file=sys.stderr)
            raise Error('Error making report for cluster ' + self.name)

        self._clean()
        atexit.unregister(self._atexit)