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1 process SEQKIT_SEQ {
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2 tag "$meta.id"
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3 label 'process_low'
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4
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5 module (params.enable_module ? "${params.swmodulepath}${params.fs}seqkit${params.fs}2.2.0" : null)
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6 conda (params.enable_conda ? "bioconda::seqkit=2.2.0" : null)
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7 container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
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8 'https://depot.galaxyproject.org/singularity/seqkit:2.1.0--h9ee0642_0':
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9 'quay.io/biocontainers/seqkit:2.1.0--h9ee0642_0' }"
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10
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11 input:
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12 tuple val(meta), path(reads)
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13
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14 output:
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15 tuple val(meta), path("*.gz"), emit: fastx
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16 path "versions.yml" , emit: versions
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17
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18 when:
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19 task.ext.when == null || task.ext.when
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20
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21 script:
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22 def args = task.ext.args ?: ''
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23 def prefix = task.ext.prefix ?: "${meta.id}"
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24
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25 def extension = "fastq"
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26 if ("$reads" ==~ /.+\.fasta|.+\.fasta.gz|.+\.fa|.+\.fa.gz|.+\.fas|.+\.fas.gz|.+\.fna|.+\.fna.gz/) {
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27 extension = "fasta"
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28 }
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29
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30 if (meta.single_end) {
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31 """
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32 seqkit \\
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33 seq \\
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34 -j $task.cpus \\
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35 -o ${prefix}.seqkit-seq.${extension}.gz \\
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36 $args \\
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37 $reads
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38
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39 cat <<-END_VERSIONS > versions.yml
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40 "${task.process}":
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41 seqkit: \$( seqkit | sed '3!d; s/Version: //' )
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42 END_VERSIONS
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43 """
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44 } else {
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45 """
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46 seqkit \\
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47 seq \\
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48 -j $task.cpus \\
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49 -o ${prefix}.R1.seqkit-seq.${extension}.gz \\
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50 $args \\
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51 ${reads[0]}
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52
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53 seqkit \\
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54 seq \\
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55 -j $task.cpus \\
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56 -o ${prefix}.R2.seqkit-seq.${extension}.gz \\
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57 $args \\
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58 ${reads[1]}
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59
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60 seqkit \\
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61 pair \\
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62 -j $task.cpus \\
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63 -1 ${prefix}.R1.seqkit-seq.${extension}.gz \\
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64 -2 ${prefix}.R2.seqkit-seq.${extension}.gz
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65
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66 rm ${prefix}.R1.seqkit-seq.${extension}.gz
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67 rm ${prefix}.R2.seqkit-seq.${extension}.gz
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68
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69 cat <<-END_VERSIONS > versions.yml
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70 "${task.process}":
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71 seqkit: \$( seqkit | sed '3!d; s/Version: //' )
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72 END_VERSIONS
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73 """
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74 }
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75 }
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