nf-core_modules/modules/gatk4/fastqtosam/main.nf

// Import generic module functions
include { initOptions; saveFiles; getSoftwareName } from './functions'

params.options = [:]
options        = initOptions(params.options)

process GATK4_FASTQTOSAM {
    tag "$meta.id"
    label 'process_medium'
    publishDir "${params.outdir}",
        mode: params.publish_dir_mode,
        saveAs: { filename -> saveFiles(filename:filename, options:params.options, publish_dir:getSoftwareName(task.process), meta:meta, publish_by_meta:['id']) }

    conda (params.enable_conda ? "bioconda::gatk4=4.2.0.0" : null)
    if (workflow.containerEngine == 'singularity' && !params.singularity_pull_docker_container) {
        container "https://depot.galaxyproject.org/singularity/gatk4:4.2.0.0--0"
    } else {
        container "quay.io/biocontainers/gatk4:4.2.0.0--0"
    }

    input:
    tuple val(meta), path(reads)

    output:
    tuple val(meta), path("*.bam"), emit: bam
    path "*.version.txt"          , emit: version

    script:
    def software   = getSoftwareName(task.process)
    def prefix     = options.suffix ? "${meta.id}${options.suffix}" : "${meta.id}"
    def read_files = meta.single_end ? "-F1 $reads" : "-F1 ${reads[0]} -F2 ${reads[1]}"
    """
    gatk FastqToSam \\
        $read_files \\
        -O ${prefix}.bam \\
        -SM $prefix \\
        $options.args

    echo \$(gatk --version 2>&1) | sed 's/^.*(GATK) v//; s/ .*\$//' > ${software}.version.txt
    """
}