feat: map qc (#38)

* feat: added qualimap rule + dependencies, moved sam_stats from Snakefile to qc.smk

* fix: add rule all input for qualimap, linting

* feat: added map_qc compression, moved sam_stats from Snakefile to qc.smk

* fix: renamed rule in profile/config.yaml to align with rule name in qc.smk

workflow/Snakefile

@@ -42,6 +42,7 @@ rule all:
         de_heatmap="de_analysis/heatmap.svg",
         lfc_analysis="de_analysis/lfc_analysis.csv",
         samstats=expand("QC/samstats/{sample}.txt", sample=samples["sample"]),
+        map_qc=expand("QC/qualimap/{sample}.tar.gz", sample=samples["sample"]),
 
 
 rule genome_to_transcriptome:
@@ -100,13 +101,13 @@ rule map_reads:
     """
 
 
-rule sam_sort:
+rule sam_view:
     input:
         sam=rules.map_reads.output,
     output:
         "sorted_alignments/{sample}.bam",
     log:
-        "logs/samtools/samsort_{sample}.log",
+        "logs/samtools/samview_{sample}.log",
     conda:
         "envs/env.yml"
     shell:
@@ -115,7 +116,7 @@ rule sam_sort:
 
 rule sam_index:
     input:
-        sbam=rules.sam_sort.output,
+        sbam=rules.sam_view.output,
     output:
         ibam="sorted_alignments/{sample}_index.bam",
     log:
@@ -129,24 +130,9 @@ rule sam_index:
         """
 
 
-rule sam_stats:
-    input:
-        bam=rules.sam_sort.output,
-    output:
-        "QC/samstats/{sample}.txt",
-    log:
-        "logs/samtools/samstats_{sample}.log",
-    conda:
-        "envs/env.yml"
-    shell:
-        """
-            samtools stats -@ {resources.cpus_per_task} {input.bam} > {output} 2> {log}
-        """
-
-
 rule count_reads:
     input:
-        bam=rules.sam_sort.output,
+        bam=rules.sam_view.output,
         trs=rules.genome_to_transcriptome.output,
     output:
         tsv="counts/{sample}_salmon/quant.sf",

workflow/envs/env.yml

@@ -28,4 +28,5 @@ dependencies:
     - anndata>=0.8.0
     - ensureconda
     - gffread>=0.12.7
-
+    - qualimap>=2.3
+    - snakemake-wrapper-utils>=0.6.2

workflow/profile/config.yaml

@@ -29,7 +29,17 @@ set-resources:
         mem_mb_per_cpu: 1800
         runtime: "2h"
 
+    map_qc:
+        cpus_per_task: 8
+        mem_mb_per_cpu: 1800
+        runtime: "1h"
+
     sam_sort:
+        cpus_per_task: 4
+        mem_mb_per_cpu: 1800
+        runtime: "2h"
+
+    sam_view:
         cpus_per_task: 1
         mem_mb_per_cpu: 1800
         runtime: "1h"

workflow/rules/qc.smk

@@ -4,12 +4,13 @@ import os
 localrules:
     compress_nplot,
     compress_nplot_all,
+    compress_map_qc,
 
 
 configfile: "config/config.yml"
 
 
-inputdir = config["inputdir"] #"/lustre/project/m2_zdvhpc/transcriptome_data/"
+inputdir = config["inputdir"]  # "/lustre/project/m2_zdvhpc/transcriptome_data/"
 
 
 # QC and metadata with NanoPlot
@@ -108,3 +109,57 @@ else:
             None
         shell:
             "tar zcvf {output} {input} &> {log}"
+
+
+rule sam_sort:
+    input:
+        sam="alignments/{sample}.sam",
+    output:
+        "sorted_alignments/{sample}_sorted.bam",
+    log:
+        "logs/samtools/samsort_{sample}.log",
+    conda:
+        "../envs/env.yml"
+    shell:
+        "samtools sort -@ {resources.cpus_per_task} {input.sam} -o {output} -O bam &> {log}"
+
+
+rule map_qc:
+    input:
+        sorted_bam=rules.sam_sort.output,
+    output:
+        directory("QC/qualimap/{sample}"),
+    log:
+        "logs/qualimap/{sample}.log",
+    conda:
+        "../envs/env.yml"
+    wrapper:
+        "v3.12.1/bio/qualimap/bamqc"
+
+
+rule compress_map_qc:
+    input:
+        map_qc=rules.map_qc.output,
+    output:
+        "QC/qualimap/{sample}.tar.gz",
+    log:
+        "logs/qualimap/compress_{sample}.log",
+    conda:
+        None
+    shell:
+        "tar zcvf {output} {input} &> {log}"
+
+
+rule sam_stats:
+    input:
+        bam="sorted_alignments/{sample}.bam",
+    output:
+        "QC/samstats/{sample}.txt",
+    log:
+        "logs/samtools/samstats_{sample}.log",
+    conda:
+        "../envs/env.yml"
+    shell:
+        """
+            samtools stats -@ {resources.cpus_per_task} {input.bam} > {output} 2> {log}
+        """