nf-core_modules/modules/tabix/bgzip/main.nf

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process TABIX_BGZIP {
tag "$meta.id"
label 'process_single'
conda (params.enable_conda ? 'bioconda::tabix=1.11' : null)
container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
'https://depot.galaxyproject.org/singularity/tabix:1.11--hdfd78af_0' :
'quay.io/biocontainers/tabix:1.11--hdfd78af_0' }"
input:
tuple val(meta), path(input)
output:
tuple val(meta), path("${output}") , emit: output
tuple val(meta), path("${output}.gzi"), emit: gzi, optional: true
path "versions.yml" , emit: versions
when:
task.ext.when == null || task.ext.when
script:
def args = task.ext.args ?: ''
prefix = task.ext.prefix ?: "${meta.id}"
in_bgzip = ["gz", "bgz", "bgzf"].contains(input.getExtension())
output = in_bgzip ? input.getBaseName() : "${prefix}.${input.getExtension()}.gz"
command1 = in_bgzip ? '-d' : '-c'
command2 = in_bgzip ? '' : " > ${output}"
// Name the index according to $prefix, unless a name has been requested
if ((args.matches("(^| )-i\\b") || args.matches("(^| )--index(\$| )")) && !args.matches("(^| )-I\\b") && !args.matches("(^| )--index-name\\b")) {
args = args + " -I ${output}.gzi"
}
"""
bgzip $command1 $args -@${task.cpus} $input $command2
cat <<-END_VERSIONS > versions.yml
"${task.process}":
tabix: \$(echo \$(tabix -h 2>&1) | sed 's/^.*Version: //; s/ .*\$//')
END_VERSIONS
"""
}