For BAM files only. Only selected parameters are implemented.

Workflow converts input BAM file into bigWig and bedGraph files.

Input BAM file should be sorted by coordinates (required by `bam_to_bedgraph` step).

If `split` input is not provided use true by default. Default logic is implemented in `valueFrom` field of `split` input inside `bam_to_bedgraph` step to avoid possible bug in cwltool with setting default values for workflow inputs.

`scale` has higher priority over the `mapped_reads_number`. The last one is used to calculate `-scale` parameter for `bedtools genomecov` (step `bam_to_bedgraph`) only in a case when input `scale` is not provided. All logic is implemented inside `bedtools-genomecov.cwl`.

`bigwig_filename` defines the output name only for generated bigWig file. `bedgraph_filename` defines the output name for generated bedGraph file and can influence on generated bigWig filename in case when `bigwig_filename` is not provided.

All workflow inputs and outputs don't have `format` field to avoid format incompatibility errors when workflow is used as subworkflow.

Tool processes and combines log files generated by Bowtie aligner and samtools rmdup.

`get_output_filename` function returns output filename equal to `output_filename` (if this input is provided) or generated on the base of bowtie log basename with `.stat` extension.

`get_formatted_output_filename` function returns output filename equal to `formatted_output_filename` (if input is provided) or generated on the base of STAR log basename with `_stats.tsv` extension.

Tool is used to perform peak calling using MACS2. Input Trigger (default: true) allows to skip all calculation and return all input files unchanged. To set files to be returned in case of Trigger == false, use the following inputs: peak_xls_file_staged: narrow_peak_file_staged: broad_peak_file_staged: gapped_peak_file_staged: peak_summits_file_staged: moder_r_file_staged: treat_pileup_bdg_file_staged: control_lambda_bdg_file_staged:

Tool assigns each peak obtained from MACS2 to a gene and region (upstream, promoter, exon, intron, intergenic)

`default_output_filename` function returns output filename with sufix set as `ext` argument. Function is called when either `output_filename` or `log_filename` inputs are not provided.

Tool calculates average tag density profile around all annotated TSS.

`default_output_filename` function returns output filename with sufix set as `ext` argument. Function is called when either `output_filename` or `log_filename` inputs are not provided.

Before running `baseCommand`, annotaion file `annotation_filename` is staged into output directory (Docker's `--workdir`) with `\"writable\": true` (to allow to overwrite it by `refgene-sort`).

To run `atdp` index file should be provided (either in `secondaryFiles` of `input_file` or as separate input `index_file`)

`baseCommand` runs bash script from `script` input. Script runs `refgene-sort` to sort annotaion file and then runs `atdp`. `refgene-sort` - utility to sort refgene annotation files, using MySQL syntax.

Optionally (with cwltool==1.0.20171107133715), script can be simplified to #!/bin/bash set -- \"$0\" \"$@\" refgene-sort -i \"${2:4}\" -o \"${2:4}\" -s \"ORDER BY chrom, strand, CASE strand WHEN '+' THEN txStart WHEN '-' THEN txEnd END\" atdp \"$@\" because `set -- \"$1\" --a=$(basename \"${2:4}\") \"${@:3}\"` is not needed anymore.

Tool to sort and index input BAM/SAM/CRAM. If input `trigger` is set to `true` or isn't set at all (`true` is used by default), run `samtools sort` and `samtools index`, return sorted BAM and BAI/CSI index file. If input `trigger` is set to `false`, return unchanged `sort_input` (BAM/SAM/CRAM) and index (BAI/CSI, if provided in `secondaryFiles`) files.

Trigger logic is implemented in two bash scripts set by default as `bash_script_sort` and `bash_script_index` inputs. For both of then, if the first argument $0 (which is `trigger` input) is true, run `samtools sort/index` with the rest of the arguments. If $0 is not true, skip `samtools sort/index` and return `sort_input` and `secondaryFiles` (if provided).

Input `trigger` is Boolean, but returns String, because of `valueFrom` field. The `valueFrom` is used, because if `trigger` is false, cwl-runner doesn't append this argument at all to the the `baseCommand` - new feature of CWL v1.0.2. Alternatively, `prefix` field could be used, but it causes changing in script logic.

If using `sort_output_filename`, the output file extension should be `*.bam`, because `samtools sort` defines the output file format on the base of the file extension. If `*.sam` is sed as output filename, it cannot be usefully indexed by `samtools index`.

`default_bam` function is used to generate output filename for `samtools sort` if input `sort_output_filename` is not set or when `trigger` is false and we need to return `sort_input` and `secondaryFiles` (if provided) files. Output filename is generated on the base of `sort_input` basename with `.bam` extension by default.

`ext` function is used to return the index file extension (BAI/CSI) based on `csi` and `bai` inputs according to the following logic `csi` && `bai` => BAI !`csi` && !`bai ` => BAI `csi` && !`bai ` => CSI