categorize jenkins stage

Jenkinsfile

@@ -1,15 +1,31 @@
 pipeline { 
     agent { dockerfile true }
     stages { 
-	stage('Hello') { 
+	stage('Checkout') {
+	 steps {
+	  checkout([$class: 'GitSCM',
+		branches: [[name: '*/master']],
+		doGenerateSubmoduleConfigurations: false,
+		extensions: [],
+		submoduleCfg: [],
+		userRemoteConfigs: [[
+			url: 'https://git.wmi.amu.edu.pl/s452111/s452111-mlworkshops']]])
+	 }
+	}
+	stage('Copy Artifacts') {
 	    steps {
-	        echo 'Hello World'
-		checkout scm;
-		copyArtifacts(projectName: 'ASR-eval');
-		sh 'chmod +x ./service.sh';
-		sh './service.sh';
-		archiveArtifacts artifacts: 'lines_count.txt', fingerprint: true;
-         }
-      }
+	    copyArtifacts filter: 'wikiniews_results.tsv, fingerprintArtifacts: true, 
+		projectName: 'ASR-eval', selector: lastSuccessful()
+	    }
+	}
+	stage('Count words') {
+	    sh 'chmod +x ./service.sh'
+	    sh './service.sh wikiniews_results.tsv'
+	}
+	stage('Archive artifacts') {
+	    steps {
+	        archiveArtifacts: 'lines_count.txt', fingerprint: true
+	    }
+	}
    }
 }

service.sh

@@ -1,2 +1,2 @@
 #!/bin/bash
-wc -l ./new_file > lines_count.txt
+wc -l wikiniews_results.tsv > lines_count.txt