nf-core_modules/modules/samtools/view/main.nf
Priyanka Surana 83b05a8dc0
add qname feature to samtools/view (#2115)
* add qname feature to samtools_view

* update tests

* Update modules/samtools/view/meta.yml

Co-authored-by: James A. Fellows Yates <jfy133@gmail.com>

* Update modules/samtools/view/meta.yml

Co-authored-by: James A. Fellows Yates <jfy133@gmail.com>

* added filter tests

Co-authored-by: James A. Fellows Yates <jfy133@gmail.com>
2022-09-28 13:04:41 +01:00

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process SAMTOOLS_VIEW {
tag "$meta.id"
label 'process_low'
conda (params.enable_conda ? "bioconda::samtools=1.15.1" : null)
container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
'https://depot.galaxyproject.org/singularity/samtools:1.15.1--h1170115_0' :
'quay.io/biocontainers/samtools:1.15.1--h1170115_0' }"
input:
tuple val(meta), path(input), path(index)
path fasta
path qname
output:
tuple val(meta), path("*.bam"), emit: bam, optional: true
tuple val(meta), path("*.cram"), emit: cram, optional: true
tuple val(meta), path("*.sam"), emit: sam, optional: true
tuple val(meta), path("*.bai"), emit: bai, optional: true
tuple val(meta), path("*.csi"), emit: csi, optional: true
tuple val(meta), path("*.crai"), emit: crai, optional: true
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 reference = fasta ? "--reference ${fasta}" : ""
def readnames = qname ? "--qname-file ${qname}": ""
def file_type = args.contains("--output-fmt sam") ? "sam" :
args.contains("--output-fmt bam") ? "bam" :
args.contains("--output-fmt cram") ? "cram" :
input.getExtension()
if ("$input" == "${prefix}.${file_type}") error "Input and output names are the same, use \"task.ext.prefix\" to disambiguate!"
"""
samtools \\
view \\
--threads ${task.cpus-1} \\
${reference} \\
${readnames} \\
$args \\
-o ${prefix}.${file_type} \\
$input
cat <<-END_VERSIONS > versions.yml
"${task.process}":
samtools: \$(echo \$(samtools --version 2>&1) | sed 's/^.*samtools //; s/Using.*\$//')
END_VERSIONS
"""
stub:
def prefix = task.ext.prefix ?: "${meta.id}"
"""
touch ${prefix}.bam
touch ${prefix}.cram
cat <<-END_VERSIONS > versions.yml
"${task.process}":
samtools: \$(echo \$(samtools --version 2>&1) | sed 's/^.*samtools //; s/Using.*\$//')
END_VERSIONS
"""
}