Fix channels for UNTAR processes

Author: drpatelh

subworkflows/local/prepare_genome.nf

@@ -137,7 +137,7 @@ workflow PREPARE_GENOME {
     if (prepare_tool_index == 'bwa') {
         if (params.bwa_index) {
             if (params.bwa_index.endsWith('.tar.gz')) {
-                ch_bwa_index = UNTAR_BWA_INDEX ( [:], params.bwa_index ).untar.map{ it[1] }
+                ch_bwa_index = UNTAR_BWA_INDEX ( [ [:], params.bwa_index ] ).untar.map{ it[1] }
                 ch_versions  = ch_versions.mix(UNTAR_BWA_INDEX.out.versions)
             } else {
                 ch_bwa_index = file(params.bwa_index)
@@ -155,7 +155,7 @@ workflow PREPARE_GENOME {
     if (prepare_tool_index == 'bowtie2') {
         if (params.bowtie2_index) {
             if (params.bowtie2_index.endsWith('.tar.gz')) {
-                ch_bowtie2_index = UNTAR_BOWTIE2_INDEX ( [:], params.bowtie2_index ).untar.map{ it[1] }
+                ch_bowtie2_index = UNTAR_BOWTIE2_INDEX ( [ [:], params.bowtie2_index ] ).untar.map{ it[1] }
                 ch_versions  = ch_versions.mix(UNTAR_BOWTIE2_INDEX.out.versions)
             } else {
                 ch_bowtie2_index = file(params.bowtie2_index)
@@ -173,7 +173,7 @@ workflow PREPARE_GENOME {
     if (prepare_tool_index == 'chromap') {
         if (params.chromap_index) {
             if (params.chromap_index.endsWith('.tar.gz')) {
-                ch_chromap_index = UNTAR_CHROMAP_INDEX ( [:], params.chromap_index ).untar.map{ it[1] }
+                ch_chromap_index = UNTAR_CHROMAP_INDEX ( [ [:], params.chromap_index ] ).untar.map{ it[1] }
                 ch_versions  = ch_versions.mix(UNTAR.out.versions)
             } else {
                 ch_chromap_index = file(params.chromap_index)
@@ -191,7 +191,7 @@ workflow PREPARE_GENOME {
     if (prepare_tool_index == 'star') {
         if (params.star_index) {
             if (params.star_index.endsWith('.tar.gz')) {
-                ch_star_index = UNTAR_STAR_INDEX ( [:], params.star_index ).untar.map{ it[1] }
+                ch_star_index = UNTAR_STAR_INDEX ( [ [:], params.star_index ] ).untar.map{ it[1] }
                 ch_versions   = ch_versions.mix(UNTAR_STAR_INDEX.out.versions)
             } else {
                 ch_star_index = file(params.star_index)