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taxprofiler/modules/nf-core/bbmap/bbduk/main.nf

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process BBMAP_BBDUK {
tag "$meta.id"
label 'process_medium'
conda "bioconda::bbmap=39.01"
container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
'https://depot.galaxyproject.org/singularity/bbmap:39.01--h5c4e2a8_0':
'quay.io/biocontainers/bbmap:39.01--h5c4e2a8_0' }"
input:
tuple val(meta), path(reads)
path contaminants
output:
tuple val(meta), path('*.fastq.gz'), emit: reads
tuple val(meta), path('*.log') , emit: log
path "versions.yml" , emit: versions
when:
task.ext.when == null || task.ext.when
script:
def args = task.ext.args ?: ''
def prefix = task.ext.prefix ?: "${meta.id}"
def raw = meta.single_end ? "in=${reads[0]}" : "in1=${reads[0]} in2=${reads[1]}"
def trimmed = meta.single_end ? "out=${prefix}.fastq.gz" : "out1=${prefix}_1.fastq.gz out2=${prefix}_2.fastq.gz"
def contaminants_fa = contaminants ? "ref=$contaminants" : ''
"""
maxmem=\$(echo \"$task.memory\"| sed 's/ GB/g/g')
bbduk.sh \\
-Xmx\$maxmem \\
$raw \\
$trimmed \\
threads=$task.cpus \\
$args \\
$contaminants_fa \\
&> ${prefix}.bbduk.log
cat <<-END_VERSIONS > versions.yml
"${task.process}":
bbmap: \$(bbversion.sh | grep -v "Duplicate cpuset")
END_VERSIONS
"""
}