fix dump_parameters function according to dev version of the nf-core template

.nf-core.yml

@@ -1,4 +1,6 @@
 repository_type: pipeline
 lint:
-  # We skip these linting as we have splitted tests between targeted and screening
-  files_exist: conf/test.config
+  files_exist:
+    - conf/test.config # We skip these linting as we have splitted tests between targeted and screening
+  files_unchanged:
+    - lib/NfcoreTemplate.groovy # Introduced a change ahead of the nf-core/tools release

lib/NfcoreTemplate.groovy

@@ -4,6 +4,7 @@
 
 import org.yaml.snakeyaml.Yaml
 import groovy.json.JsonOutput
+import nextflow.extension.FilesEx
 
 class NfcoreTemplate {
 
@@ -141,12 +142,14 @@ class NfcoreTemplate {
             try {
                 if (params.plaintext_email) { throw GroovyException('Send plaintext e-mail, not HTML') }
                 // Try to send HTML e-mail using sendmail
+                def sendmail_tf = new File(workflow.launchDir.toString(), ".sendmail_tmp.html")
+                sendmail_tf.withWriter { w -> w << sendmail_html }
                 [ 'sendmail', '-t' ].execute() << sendmail_html
                 log.info "-${colors.purple}[$workflow.manifest.name]${colors.green} Sent summary e-mail to $email_address (sendmail)-"
             } catch (all) {
                 // Catch failures and try with plaintext
                 def mail_cmd = [ 'mail', '-s', subject, '--content-type=text/html', email_address ]
-                if ( mqc_report.size() <= max_multiqc_email_size.toBytes() ) {
+                if ( mqc_report != null && mqc_report.size() <= max_multiqc_email_size.toBytes() ) {
                     mail_cmd += [ '-A', mqc_report ]
                 }
                 mail_cmd.execute() << email_html
@@ -155,14 +158,16 @@ class NfcoreTemplate {
         }
 
         // Write summary e-mail HTML to a file
-        def output_d = new File("${params.outdir}/pipeline_info/")
-        if (!output_d.exists()) {
-            output_d.mkdirs()
-        }
-        def output_hf = new File(output_d, "pipeline_report.html")
+        def output_hf = new File(workflow.launchDir.toString(), ".pipeline_report.html")
         output_hf.withWriter { w -> w << email_html }
-        def output_tf = new File(output_d, "pipeline_report.txt")
+        FilesEx.copyTo(output_hf.toPath(), "${params.outdir}/pipeline_info/pipeline_report.html");
+        output_hf.delete()
+
+        // Write summary e-mail TXT to a file
+        def output_tf = new File(workflow.launchDir.toString(), ".pipeline_report.txt")
         output_tf.withWriter { w -> w << email_txt }
+        FilesEx.copyTo(output_tf.toPath(), "${params.outdir}/pipeline_info/pipeline_report.txt");
+        output_tf.delete()
     }
 
     //
@@ -227,15 +232,14 @@ class NfcoreTemplate {
     // Dump pipeline parameters in a json file
     //
     public static void dump_parameters(workflow, params) {
-        def output_d = new File("${params.outdir}/pipeline_info/")
-        if (!output_d.exists()) {
-            output_d.mkdirs()
-        }
-
         def timestamp  = new java.util.Date().format( 'yyyy-MM-dd_HH-mm-ss')
-        def output_pf  = new File(output_d, "params_${timestamp}.json")
+        def filename   = "params_${timestamp}.json"
+        def temp_pf    = new File(workflow.launchDir.toString(), ".${filename}")
         def jsonStr    = JsonOutput.toJson(params)
-        output_pf.text = JsonOutput.prettyPrint(jsonStr)
+        temp_pf.text   = JsonOutput.prettyPrint(jsonStr)
+
+        FilesEx.copyTo(temp_pf.toPath(), "${params.outdir}/pipeline_info/params_${timestamp}.json")
+        temp_pf.delete()
     }
 
     //