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58 lines
2.4 KiB
Text
Generated
58 lines
2.4 KiB
Text
Generated
process KRAKEN2_KRAKEN2 {
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tag "$meta.id"
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label 'process_high'
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conda "bioconda::kraken2=2.1.2 conda-forge::pigz=2.6"
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container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
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'https://depot.galaxyproject.org/singularity/mulled-v2-5799ab18b5fc681e75923b2450abaa969907ec98:87fc08d11968d081f3e8a37131c1f1f6715b6542-0' :
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'quay.io/biocontainers/mulled-v2-5799ab18b5fc681e75923b2450abaa969907ec98:87fc08d11968d081f3e8a37131c1f1f6715b6542-0' }"
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input:
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tuple val(meta), path(reads)
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path db
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val save_output_fastqs
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val save_reads_assignment
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output:
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tuple val(meta), path('*.classified{.,_}*') , optional:true, emit: classified_reads_fastq
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tuple val(meta), path('*.unclassified{.,_}*') , optional:true, emit: unclassified_reads_fastq
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tuple val(meta), path('*classifiedreads.txt') , optional:true, emit: classified_reads_assignment
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tuple val(meta), path('*report.txt') , emit: report
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path "versions.yml" , emit: versions
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when:
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task.ext.when == null || task.ext.when
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script:
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def args = task.ext.args ?: ''
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def prefix = task.ext.prefix ?: "${meta.id}"
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def paired = meta.single_end ? "" : "--paired"
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def classified = meta.single_end ? "${prefix}.classified.fastq" : "${prefix}.classified#.fastq"
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def unclassified = meta.single_end ? "${prefix}.unclassified.fastq" : "${prefix}.unclassified#.fastq"
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def classified_option = save_output_fastqs ? "--classified-out ${classified}" : ""
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def unclassified_option = save_output_fastqs ? "--unclassified-out ${unclassified}" : ""
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def readclassification_option = save_reads_assignment ? "--output ${prefix}.kraken2.classifiedreads.txt" : ""
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def compress_reads_command = save_output_fastqs ? "pigz -p $task.cpus *.fastq" : ""
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"""
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kraken2 \\
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--db $db \\
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--threads $task.cpus \\
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--report ${prefix}.kraken2.report.txt \\
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--gzip-compressed \\
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$unclassified_option \\
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$classified_option \\
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$readclassification_option \\
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$paired \\
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$args \\
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$reads
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$compress_reads_command
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cat <<-END_VERSIONS > versions.yml
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"${task.process}":
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kraken2: \$(echo \$(kraken2 --version 2>&1) | sed 's/^.*Kraken version //; s/ .*\$//')
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pigz: \$( pigz --version 2>&1 | sed 's/pigz //g' )
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END_VERSIONS
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"""
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}
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