nf-core_modules/modules/samtools/flagstat/main.nf
Matthias De Smet bbb99cb8d6
Fix/samtools flagstat (#1979)
* fix samtools stats thread usage

* flagstat: fix threads
2022-08-29 13:11:58 +02:00

35 lines
1 KiB
Text

process SAMTOOLS_FLAGSTAT {
tag "$meta.id"
label 'process_single'
conda (params.enable_conda ? "bioconda::samtools=1.15.1" : null)
container "${ 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(bam), path(bai)
output:
tuple val(meta), path("*.flagstat"), emit: flagstat
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}"
"""
samtools \\
flagstat \\
--threads ${task.cpus} \\
$bam \\
> ${prefix}.flagstat
cat <<-END_VERSIONS > versions.yml
"${task.process}":
samtools: \$(echo \$(samtools --version 2>&1) | sed 's/^.*samtools //; s/Using.*\$//')
END_VERSIONS
"""
}