Fix error on json schema validation with 21.10.0-SNAPSHOT see here nf…

…-core/tools#1304

lib/NfcoreTemplate.groovy

@@ -19,27 +19,16 @@ class NfcoreTemplate {
     }
 
     //
-    // Check params.hostnames
+    //  Warn if a -profile or Nextflow config has not been provided to run the pipeline
     //
-    public static void hostName(workflow, params, log) {
-        Map colors = logColours(params.monochrome_logs)
-        if (params.hostnames) {
-            try {
-                def hostname = "hostname".execute().text.trim()
-                params.hostnames.each { prof, hnames ->
-                    hnames.each { hname ->
-                        if (hostname.contains(hname) && !workflow.profile.contains(prof)) {
-                            log.info "=${colors.yellow}====================================================${colors.reset}=\n" +
-                                "${colors.yellow}WARN: You are running with `-profile $workflow.profile`\n" +
-                                "      but your machine hostname is ${colors.white}'$hostname'${colors.reset}.\n" +
-                                "      ${colors.yellow_bold}Please use `-profile $prof${colors.reset}`\n" +
-                                "=${colors.yellow}====================================================${colors.reset}="
-                        }
-                    }
-                }
-            } catch (Exception e) {
-                log.warn "[$workflow.manifest.name] Could not determine 'hostname' - skipping check. Reason: ${e.message}."
-            }
+    public static void checkConfigProvided(workflow, log) {
+        if (workflow.profile == 'standard' && workflow.configFiles.size() <= 1) {
+            log.warn "[$workflow.manifest.name] You are attempting to run the pipeline without any custom configuration!\n\n" +
+                    "This will be dependent on your local compute enviroment but can be acheived via one or more of the following:\n" +
+                    "   (1) Using an existing pipeline profile e.g. `-profile docker` or `-profile singularity`\n" +
+                    "   (2) Using an existing nf-core/configs for your Institution e.g. `-profile crick` or `-profile uppmax`\n" +
+                    "   (3) Using your own local custom config e.g. `-c /path/to/your/custom.config`\n\n" +
+                    "Please refer to the quick start section and usage docs for the pipeline.\n "
         }
     }
 
@@ -168,7 +157,6 @@ class NfcoreTemplate {
                 log.info "-${colors.purple}[$workflow.manifest.name]${colors.red} Pipeline completed successfully, but with errored process(es) ${colors.reset}-"
             }
         } else {
-            hostName(workflow, params, log)
             log.info "-${colors.purple}[$workflow.manifest.name]${colors.red} Pipeline completed with errors${colors.reset}-"
         }
     }