feat: Add entry to download references

conf/base.config

@@ -10,7 +10,6 @@
 
 process {
 
-    // TODO nf-core: Check the defaults for all processes
     cpus   = { check_max( 1    * task.attempt, 'cpus'   ) }
     memory = { check_max( 6.GB * task.attempt, 'memory' ) }
     time   = { check_max( 4.h  * task.attempt, 'time'   ) }
@@ -19,13 +18,6 @@ process {
     maxRetries    = 1
     maxErrors     = '-1'
 
-    // Process-specific resource requirements
-    // NOTE - Please try and re-use the labels below as much as possible.
-    //        These labels are used and recognised by default in DSL2 files hosted on nf-core/modules.
-    //        If possible, it would be nice to keep the same label naming convention when
-    //        adding in your local modules too.
-    // TODO nf-core: Customise requirements for specific processes.
-    // See https://www.nextflow.io/docs/latest/config.html#config-process-selectors
     withLabel:process_single {
         cpus   = { check_max( 1                  , 'cpus'    ) }
         memory = { check_max( 6.GB * task.attempt, 'memory'  ) }
@@ -59,6 +51,10 @@ process {
         errorStrategy = 'retry'
         maxRetries    = 2
     }
+    withLabel:error_retry_delay {
+        errorStrategy = { sleep(Math.pow(2, task.attempt) * 200 as long); return 'retry' }
+        maxRetries = 3
+    }
     withName:CUSTOM_DUMPSOFTWAREVERSIONS {
         cache = false
     }

conf/modules.config

@@ -27,6 +27,37 @@ process {
         ]
     }
 
+    // DOWNLOAD ENTRY
+    withName: DOWNLOAD_FUNCTIONAL_DB {
+        publishDir = [
+            path: { "${params.outdir}/references/functional" },
+            mode: "move",
+        ]
+    }
+    withName: DOWNLOAD_FUNCTIONAL_DICT {
+        publishDir = [
+            path: { "${params.outdir}/references/functional" },
+            mode: "move",
+        ]
+    }
+    withName: DOWNLOAD_KAIJU {
+        publishDir = [
+            path: { "${params.outdir}/references/kaiju" },
+            mode: "move",
+        ]
+    }
+    withName: DOWNLOAD_KRAKEN {
+        publishDir = [
+            path: { "${params.outdir}/references/kraken2" },
+            mode: "move",
+        ]
+    }
+    withName: DOWNLOAD_HOST {
+        publishDir = [
+            path: { "${params.outdir}/references/host" },
+            mode: "move",
+        ]
+    }
     // Host removal
     withName: BOWTIE2_ALIGN {
         ext.args = "--sensitive"

conf/test.config

@@ -26,6 +26,13 @@ params {
     id_mapping  = "$projectDir/test_data/idmapping_selected.tab.example.gz"
     reference_fasta = "$projectDir/test_data/protein.faa.gz"
 
+    // download entry
+    functional_db              = 'https://github.com/dalmolingroup/euryale/raw/main/test_data/protein.faa.gz'
+    functional_dictionary      = 'https://github.com/dalmolingroup/euryale/raw/main/test_data/idmapping_selected.tab.example.gz'
+    kaiju_db_url               = 'https://github.com/nf-core/test-datasets/raw/taxprofiler/data/database/kaiju/kaiju.tar.gz'
+    kraken2_db_url             = 'https://github.com/nf-core/test-datasets/raw/taxprofiler/data/database/kraken2/testdb-kraken2.tar.gz'
+    host_url                   = 'https://github.com/dalmolingroup/euryale/raw/main/test_data/GCA_002596845.1_ASM259684v1_genomic.fna.gz'
+
     // Annotation params
     minimum_bitscore           = 30
     minimum_pident             = 30

docs/params.md

@@ -87,6 +87,22 @@ Reference genome related files and options required for the workflow.
 | `igenomes_ignore` | Do not load the iGenomes reference config. <details><summary>Help</summary><small>Do not load `igenomes.config` when running the pipeline. You may choose this option if you observe clashes between custom parameters and those supplied in `igenomes.config`.</small></details>| `boolean` |  |  | True |
 | `fasta` |  | `string` |  |  |  |
 
+## Download Entry
+
+
+
+| Parameter | Description | Type | Default | Required | Hidden |
+|-----------|-----------|-----------|-----------|-----------|-----------|
+| `download_functional` | Whether to dowload functional references | `boolean` | True |  |  |
+| `download_kaiju` | Whether to dowload the Kaiju reference db | `boolean` | True |  |  |
+| `download_kraken` | Whether to dowload the Kraken2 reference db | `boolean` |  |  |  |
+| `download_host` | Whether to download the host reference genome | `boolean` |  |  |  |
+| `functional_db` | Functional reference URL (download entry) | `string` | https://ftp.ncbi.nlm.nih.gov/blast/db/FASTA/nr.gz |  |  |
+| `functional_dictionary` | Functional dictionary URL (download entry) | `string` | https://ftp.uniprot.org/pub/databases/uniprot/current_release/knowledgebase/idmapping/idmapping.dat.gz |  |  |
+| `kaiju_db_url` | Kaiju reference URL (download entry) | `string` | https://kaiju-idx.s3.eu-central-1.amazonaws.com/2023/kaiju_db_nr_2023-05-10.tgz |  |  |
+| `kraken2_db_url` | Kraken2 reference URL (download entry) | `string` | https://genome-idx.s3.amazonaws.com/kraken/k2_standard_08gb_20240112.tar.gz |  |  |
+| `host_url` | Host FASTA reference URL (download entry) | `string` | http://ftp.ensembl.org/pub/release-112/fasta/homo_sapiens/dna/Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz |  |  |
+
 ## Max job request options
 
 Set the top limit for requested resources for any single job.

lib/WorkflowMain.groovy

@@ -78,12 +78,6 @@ class WorkflowMain {
 
         // Check AWS batch settings
         NfcoreTemplate.awsBatch(workflow, params)
-
-        // Check input has been provided
-        if (!params.input) {
-            log.error "Please provide an input samplesheet to the pipeline e.g. '--input samplesheet.csv'"
-            System.exit(1)
-        }
     }
     //
     // Get attribute from genome config file e.g. fasta

main.nf

@@ -32,12 +32,10 @@ WorkflowMain.initialise(workflow, params, log)
 */
 
 include { EURYALE } from './workflows/euryale'
+include { DOWNLOAD } from './workflows/download'
 
-//
-// WORKFLOW: Run main dalmolingroup/euryale analysis pipeline
-//
-workflow DALMOLINGROUP_EURYALE {
-    EURYALE ()
+workflow download {
+    DOWNLOAD ()
 }
 
 /*
@@ -51,7 +49,7 @@ workflow DALMOLINGROUP_EURYALE {
 // See: https://github.com/nf-core/rnaseq/issues/619
 //
 workflow {
-    DALMOLINGROUP_EURYALE ()
+    EURYALE ()
 }
 
 /*

modules/local/download/main.nf

@@ -0,0 +1,25 @@
+process DOWNLOAD {
+    tag "$id"
+
+    label 'process_single'
+    label 'error_retry_delay'
+
+    input:
+    val id
+    val url
+
+    output:
+    path "${prefix}", emit: db
+
+    script:
+    prefix = task.ext.prefix ?: "${id}"
+
+    """
+    wget -O ${prefix} $url
+    """
+
+    stub:
+    """
+    touch ${prefix}
+    """
+}

nextflow.config

@@ -50,6 +50,18 @@ params {
     skip_alignment             = false
     skip_microview             = false
 
+    // Dowload entry options
+    download_functional        = true
+    download_kaiju             = true
+    download_kraken            = false
+    download_host              = false
+
+    functional_db              = 'https://ftp.ncbi.nlm.nih.gov/blast/db/FASTA/nr.gz'
+    functional_dictionary      = 'https://ftp.uniprot.org/pub/databases/uniprot/current_release/knowledgebase/idmapping/idmapping.dat.gz'
+    kaiju_db_url               = 'https://kaiju-idx.s3.eu-central-1.amazonaws.com/2023/kaiju_db_nr_2023-05-10.tgz'
+    kraken2_db_url             = 'https://genome-idx.s3.amazonaws.com/kraken/k2_standard_08gb_20240112.tar.gz'
+    host_url                   = 'http://ftp.ensembl.org/pub/release-112/fasta/homo_sapiens/dna/Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz'
+
     // MultiQC options
     multiqc_config             = null
     multiqc_title              = null

nextflow_schema.json

@@ -11,7 +11,6 @@
             "fa_icon": "fas fa-terminal",
             "description": "Define where the pipeline should find input data and save output data.",
             "required": [
-                "input",
                 "outdir"
             ],
             "properties": {
@@ -154,9 +153,6 @@
                     "description": "Run Kraken2 classifier"
                 }
             },
-            "required": [
-                "kaiju_db"
-            ],
             "fa_icon": "fab fa-pagelines"
         },
         "functional": {
@@ -237,6 +233,58 @@
                 }
             }
         },
+        "download_entry": {
+            "title": "Download Entry",
+            "type": "object",
+            "description": "",
+            "default": "",
+            "properties": {
+                "download_functional": {
+                    "type": "boolean",
+                    "default": true,
+                    "description": "Whether to dowload functional references"
+                },
+                "download_kaiju": {
+                    "type": "boolean",
+                    "default": true,
+                    "description": "Whether to dowload the Kaiju reference db"
+                },
+                "download_kraken": {
+                    "type": "boolean",
+                    "description": "Whether to dowload the Kraken2 reference db"
+                },
+                "download_host": {
+                    "type": "boolean",
+                    "description": "Whether to download the host reference genome"
+                },
+                "functional_db": {
+                    "type": "string",
+                    "default": "https://ftp.ncbi.nlm.nih.gov/blast/db/FASTA/nr.gz",
+                    "description": "Functional reference URL (download entry)"
+                },
+                "functional_dictionary": {
+                    "type": "string",
+                    "default": "https://ftp.uniprot.org/pub/databases/uniprot/current_release/knowledgebase/idmapping/idmapping.dat.gz",
+                    "description": "Functional dictionary URL (download entry)"
+                },
+                "kaiju_db_url": {
+                    "type": "string",
+                    "default": "https://kaiju-idx.s3.eu-central-1.amazonaws.com/2023/kaiju_db_nr_2023-05-10.tgz",
+                    "description": "Kaiju reference URL (download entry)"
+                },
+                "kraken2_db_url": {
+                    "type": "string",
+                    "default": "https://genome-idx.s3.amazonaws.com/kraken/k2_standard_08gb_20240112.tar.gz",
+                    "description": "Kraken2 reference URL (download entry)"
+                },
+                "host_url": {
+                    "type": "string",
+                    "default": "http://ftp.ensembl.org/pub/release-112/fasta/homo_sapiens/dna/Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz",
+                    "description": "Host FASTA reference URL (download entry)"
+                }
+            },
+            "fa_icon": "fas fa-database"
+        },
         "max_job_request_options": {
             "title": "Max job request options",
             "type": "object",
@@ -413,6 +461,9 @@
         {
             "$ref": "#/definitions/reference_genome_options"
         },
+        {
+            "$ref": "#/definitions/download_entry"
+        },
         {
             "$ref": "#/definitions/max_job_request_options"
         },

workflows/download.nf

@@ -0,0 +1,45 @@
+/*
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    VALIDATE INPUTS
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+*/
+
+def summary_params = NfcoreSchema.paramsSummaryMap(workflow, params)
+
+// Validate input parameters
+WorkflowEuryale.initialise(params, log)
+
+/*
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    IMPORT LOCAL MODULES/SUBWORKFLOWS
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+*/
+
+//
+// MODULES
+//
+
+include { DOWNLOAD as DOWNLOAD_FUNCTIONAL_DB } from '../modules/local/download/main'
+include { DOWNLOAD as DOWNLOAD_FUNCTIONAL_DICT } from '../modules/local/download/main'
+include { DOWNLOAD as DOWNLOAD_KAIJU } from '../modules/local/download/main'
+include { DOWNLOAD as DOWNLOAD_KRAKEN } from '../modules/local/download/main'
+include { DOWNLOAD as DOWNLOAD_HOST } from '../modules/local/download/main'
+
+workflow DOWNLOAD {
+    if (params.download_functional) {
+        DOWNLOAD_FUNCTIONAL_DB("reference_fasta.fa.gz", params.functional_db)
+        DOWNLOAD_FUNCTIONAL_DICT("id_mapping.tab.gz", params.functional_dictionary)
+    }
+
+    if (params.download_kaiju) {
+        DOWNLOAD_KAIJU("kaiju_db.tar.gz", params.kaiju_db_url)
+    }
+
+    if (params.download_kraken) {
+        DOWNLOAD_KRAKEN("kraken2_db.tar.gz", params.kraken2_db_url)
+    }
+
+    if (params.download_host) {
+        DOWNLOAD_HOST("host_fasta.fa.gz", params.host_url)
+    }
+}

workflows/euryale.nf

@@ -13,9 +13,6 @@ WorkflowEuryale.initialise(params, log)
 def checkPathParamList = [ params.input, params.multiqc_config, params.kaiju_db ]
 for (param in checkPathParamList) { if (param) { file(param, checkIfExists: true) } }
 
-// Check mandatory parameters
-if (params.input) { ch_input = file(params.input) } else { exit 1, 'Input samplesheet not specified!' }
-
 /*
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     CONFIG FILES
@@ -72,6 +69,8 @@ include { CUSTOM_DUMPSOFTWAREVERSIONS } from '../modules/nf-core/custom/dumpsoft
 def multiqc_report = []
 
 workflow EURYALE {
+    // Check mandatory parameters
+    if (params.input) { ch_input = file(params.input) } else { exit 1, 'Input samplesheet not specified!' }
     if (params.reference_fasta == null && params.diamond_db == null && params.skip_alignment == false) { exit 1, 'A reference fasta (--reference_fasta) or a DIAMOND db (--diamond_db) must be specified' }
     if (params.run_kaiju == true && params.kaiju_db == null && params.skip_classification == false) {exit 1, 'A Kaiju tar.gz database must be specified with --kaiju_db'}
     if (params.run_kraken2 == true && params.kraken2_db == null && params.skip_classification == false) {exit 1, 'A Kraken2 database must be specified with --kraken2_db'}