/* Only keep the 10 most recent builds. */
properties([[$class: 'BuildDiscarderProperty',
                strategy: [$class: 'LogRotator', numToKeepStr: '10']]])

stage ('Build') {

  node {
    // Checkout
    checkout scm

    // install required bundles
    sh 'bundle install'

    // build and run tests with coverage
    sh 'bundle exec rake build spec'

    // Archive the built artifacts
    archive (includes: 'pkg/*.gem')

    // publish html
    publishHTML ([
        allowMissing: false,
        alwaysLinkToLastBuild: false,
        keepAll: true,
        reportDir: 'coverage',
        reportFiles: 'index.html',
        reportName: "RCov Report"
      ])

  }
}

pipeline {
    agent any
    options {
        buildDiscarder(logRotator(numToKeepStr:'10'))
    }
    stages {
        stage ('Build') {
            steps {
                // install required bundles
                sh 'bundle install'

                // build and run tests with coverage
                sh 'bundle exec rake build spec'
            }
        }
    }
    post {
        success {
            // Archive the built artifacts
            archive includes: 'pkg/*.gem'
        }

        always {
            // publish html
            publishHTML ([
                allowMissing: false,
                alwaysLinkToLastBuild: false,
                keepAll: true,
                reportDir: 'coverage',
                reportFiles: 'index.html',
                reportName: "RCov Report"
              ])
        }
    }
}

First time build. Skipping changelog.
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
WorkflowScript: 28: Invalid parameter "allowMissing", did you mean "target"? @ line 28, column 17.
                   allowMissing: false,
                   ^

WorkflowScript: 29: Invalid parameter "alwaysLinkToLastBuild", did you mean "target"? @ line 29, column 17.
                   alwaysLinkToLastBuild: false,
                   ^

WorkflowScript: 30: Invalid parameter "keepAll", did you mean "target"? @ line 30, column 17.
                   keepAll: true,
                   ^

WorkflowScript: 31: Invalid parameter "reportDir", did you mean "target"? @ line 31, column 17.
                   reportDir: 'coverage',
                   ^

WorkflowScript: 32: Invalid parameter "reportFiles", did you mean "target"? @ line 32, column 17.
                   reportFiles: 'index.html',
                   ^

WorkflowScript: 33: Invalid parameter "reportName", did you mean "target"? @ line 33, column 17.
                   reportName: "RCov Report"
                   ^

WorkflowScript: 27: Missing required parameter: "target" @ line 27, column 13.
               publishHTML ([
               ^

7 errors

pipeline {
    agent any
    options {
        buildDiscarder(logRotator(numToKeepStr:'10'))
    }
    stages {
        stage ('Build') {
            steps {
                // install required bundles
                sh 'bundle install'

                // build and run tests with coverage
                sh 'bundle exec rake build spec'
            }
        }
    }
    post {
        success {
            // Archive the built artifacts
            archive includes: 'pkg/*.gem'
        }

        always {
            // publish html
            publishHTML target:[
                allowMissing: false,
                alwaysLinkToLastBuild: false,
                keepAll: true,
                reportDir: 'coverage',
                reportFiles: 'index.html',
                reportName: "RCov Report"
              ]
        }
    }
}