nf-core_modules/software/bowtie/align/main.nf
2020-12-18 09:20:35 +01:00

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// Import generic module functions
include { initOptions; saveFiles; getSoftwareName } from './functions'
params.options = [:]
def options = initOptions(params.options)
process BOWTIE_ALIGN {
tag "$meta.id"
label 'process_high'
publishDir "${params.outdir}",
mode: params.publish_dir_mode,
saveAs: { filename -> saveFiles(filename:filename, options:params.options, publish_dir:getSoftwareName(task.process), publish_id:meta.id) }
conda (params.enable_conda ? 'bioconda::bowtie=1.3.0 bioconda::samtools=1.10' : null)
if (workflow.containerEngine == 'singularity' && !params.singularity_pull_docker_container) {
container 'https://depot.galaxyproject.org/singularity/mulled-v2-ffbf83a6b0ab6ec567a336cf349b80637135bca3:9e14e16c284d6860574cf5b624bbc44c793cb024-0'
} else {
container 'quay.io/biocontainers/mulled-v2-ffbf83a6b0ab6ec567a336cf349b80637135bca3:9e14e16c284d6860574cf5b624bbc44c793cb024-0'
}
input:
tuple val(meta), path(reads)
path index
output:
tuple val(meta), path('*.bam'), emit: bam
tuple val(meta), path('*.out'), emit: log
path '*.version.txt' , emit: version
tuple val(meta), path('*fastq.gz'), optional:true, emit: fastq
script:
def software = getSoftwareName(task.process)
def prefix = options.suffix ? "${meta.id}${options.suffix}" : "${meta.id}"
def unaligned = params.save_unaligned ? "--un ${prefix}.unmapped.fastq" : ''
def endedness = meta.single_end ? "$reads" : "-1 ${reads[0]} -2 ${reads[1]}"
"""
INDEX=`find -L ./ -name "*.3.ebwt" | sed 's/.3.ebwt//'`
bowtie \\
--threads $task.cpus \\
--sam \\
-x \$INDEX \\
-q \\
$unaligned \\
$options.args \\
$endedness \\
2> ${prefix}.out \\
| samtools view $options.args2 -@ $task.cpus -bS -o ${prefix}.bam -
if [ -f ${prefix}.unmapped.fastq ]; then
gzip ${prefix}.unmapped.fastq
fi
if [ -f ${prefix}.unmapped_1.fastq ]; then
gzip ${prefix}.unmapped_1.fastq
gzip ${prefix}.unmapped_2.fastq
fi
echo \$(bowtie --version 2>&1) | sed 's/^.*bowtie-align-s version //; s/ .*\$//' > ${software}.version.txt
"""
}