Add outputs for umitools dedup summary stats (#1422)

modules/umitools/dedup/main.nf

@@ -12,6 +12,9 @@ process UMITOOLS_DEDUP {
 
     output:
     tuple val(meta), path("*.bam")             , emit: bam
+    tuple val(meta), path("*edit_distance.tsv"), emit: tsv_edit_distance
+    tuple val(meta), path("*per_umi.tsv")      , emit: tsv_per_umi
+    tuple val(meta), path("*per_position.tsv") , emit: tsv_umi_per_position
     path  "versions.yml"                       , emit: versions
 
     when:
@@ -22,9 +25,11 @@ process UMITOOLS_DEDUP {
     def prefix = task.ext.prefix ?: "${meta.id}"
     def paired = meta.single_end ? "" : "--paired"
     """
-    umi_tools dedup \\
+    umi_tools \\
+        dedup \\
         -I $bam \\
         -S ${prefix}.bam \\
+        --output-stats $prefix \\
         $paired \\
         $args
 

modules/umitools/dedup/meta.yml

@@ -36,6 +36,18 @@ output:
     type: file
     description: BAM file with deduplicated UMIs.
     pattern: "*.{bam}"
+  - tsv_edit_distance:
+    type: file
+    description: Reports the (binned) average edit distance between the UMIs at each position.
+    pattern: "*edit_distance.tsv"
+  - tsv_per_umi:
+    type: file
+    description: UMI-level summary statistics.
+    pattern: "*per_umi.tsv"
+  - tsv_umi_per_position:
+    type: file
+    description: Tabulates the counts for unique combinations of UMI and position.
+    pattern: "*per_position.tsv"
   - versions:
     type: file
     description: File containing software versions