Add credentials to Jenkinsfile

Jenkinsfile

@@ -3,7 +3,13 @@ pipeline {
     stages {
         stage('Gradle') {
             steps {
-                sh './gradlew build'
+                withCredentials([usernamePassword(credentialsId: 'my-credentials-id', usernameVariable: 'NEXUS_USERNAME', passwordVariable: 'NEXUS_PASSWORD')]) {
+                    sh """
+                        ./gradlew build \
+                        -PalttdSnapshotUsername=$NEXUS_USERNAME \
+                        -PalttdSnapshotPassword=$NEXUS_PASSWORD
+                    """
+                }
             }
         }
         stage('Archive') {
@@ -13,8 +19,13 @@ pipeline {
         }
         stage('discord') {
             steps {
-                discordSend description: "Build: ${BUILD_NUMBER}", showChangeset: true, result: currentBuild.currentResult, title: currentBuild.fullProjectName, webhookURL: env.discordwebhook
+                discordSend
+                    description: "Build: ${BUILD_NUMBER}",
+                    showChangeset: true,
+                    result: currentBuild.currentResult,
+                    title: currentBuild.fullProjectName,
+                    webhookURL: env.discordwebhook
             }
         }
     }
-}
+}