Add publish step

vars/publishToNexus.groovy

@@ -2,4 +2,17 @@
 void call(Map config = [:], String packageName) {
     publishURL = [ config.nexusBase, config.nexusRepository, config.nexusRepoPath, packageName ].join('/')
     echo "Info: ${publishURL}"
+
+    withCredentials([usernameColonPassword(credentialsId: 'publisher', variable: 'NEXUS_PUBLISH')]) {
+        response = httpRequest httpMode: 'POST',
+        contentType: 'multipart/form-data',
+        url: publishURL,
+        wrapAsMultipart: true,
+        customHeaders: [
+          [name: 'Authorization', value: 'Basic ' + "${env.NEXUS_PUBLISH}".bytes.encodeBase64()]
+        ],
+        requestBody: [$class: 'FileRequestBody', file: packageName]
+
+        echo "Response: ${response.content}"
+    }
 }