// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
pipeline {

  agent {
    // Hadoop and ubuntu for ASF, rest are private
    label 'Hadoop||ubuntu||azaka||small'
  }

  options {
    buildDiscarder(logRotator(numToKeepStr: '5'))
    timeout (time: 9, unit: 'HOURS')
    timestamps()
    checkoutToSubdirectory('src')
  }

  environment {
    YETUS_BASEDIR = 'src'
    // will also need to change notification section below
    YETUS_RELATIVE_PATCHDIR = 'out'
    YETUS_DOCKERFILE = "${YETUS_BASEDIR}/precommit/src/main/shell/test-patch-docker/Dockerfile"
  }

  parameters {
    string(name: 'ISSUE_NUM',
           defaultValue: '',
           description: 'The JIRA YETUS issue number that has a patch needing pre-commit testing. Example: 1234')
    booleanParam(name: 'USE_DEBUG_FLAG',
                 defaultValue: false,
                 description: 'click to enable extra outputs')
    booleanParam(name: 'USE_DOCKER_FLAG',
                 defaultValue: true,
                 description: 'Disable to turn off Docker mode')
    string(name: 'EXTRA_ARGS',
           defaultValue: '',
           description: 'Any extra test-patch arguments')
  }

  stages {
    stage ('precommit-run') {
      steps {
        withCredentials([usernamePassword(credentialsId: 'apache-yetus-at-github.com',
                         passwordVariable: 'GITHUB_PASSWORD',
                         usernameVariable: 'GITHUB_USER')]) {
          withCredentials([usernamePassword(credentialsId: 'yetusqa-at-asf-jira',
                           passwordVariable: 'JIRA_PASSWORD',
                           usernameVariable: 'JIRA_USER')]) {
            sh '''#!/usr/bin/env bash

                USE_DOCKER_FLAG=${USE_DOCKER_FLAG:-true}
                # The ASF Jenkins servers are always full of broken JVMs left over
                # from really terrible jobs/bugs in Java. This should get moved to
                # the core code as part of YETUS-745

                uptime

                free -h

                pidscur=$(cat /sys/fs/cgroup/pids/user.slice/user-${UID}.slice/pids.current)
                pidsmax=$(cat /sys/fs/cgroup/pids/user.slice/user-${UID}.slice/pids.max)
                ((remainingpids=pidsmax - pidscur))

                echo "PIDS:  max: ${pidsmax} cur: ${pidscur} rem: ${remainingpids}"

                # Doing this lets us log them. We pull
                # out test-patch since --java-home + --jira-home might appear on
                # its command line

                pids=$(ps -ef | grep /home/jenkins/jenkins-slave/workspace/ | grep -v test-patch | awk '{print $2}')


                for pid in ${pids}; do
                  elapsed=$(ps -o etimes= -p ${pid})
                  if [[ ${elapsed} -gt 86400 ]]; then
                    ps up ${pid}
                    echo "Killing ${pid} ***"
                    kill -9 "${pid}"
                  fi
                done

                uptime

                free -h

                pidscur=$(cat /sys/fs/cgroup/pids/user.slice/user-${UID}.slice/pids.current)
                pidsmax=$(cat /sys/fs/cgroup/pids/user.slice/user-${UID}.slice/pids.max)
                ((remainingpids=pidsmax - pidscur))

                echo "PIDS:  max: ${pidsmax} cur: ${pidscur} rem: ${remainingpids}"

                # clean and make a new directory for our output artifacts, temporary
                # storage, etc just incase the workspace directory
                # delete in post is removed
                if [[ -d "${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}" ]]; then
                  rm -rf "${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}"
                fi
                mkdir -p "${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}"
                YETUS_ARGS+=("--patch-dir=${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}")

                # where the source is located
                YETUS_ARGS+=("--basedir=${WORKSPACE}/${YETUS_BASEDIR}")

                # our project defaults come from a personality file
                # which will get loaded automatically by setting the project name
                YETUS_ARGS+=("--project=yetus")

                # Enable maven custom repos in order to avoid multiple executor clashes
                YETUS_ARGS+=("--mvn-custom-repos")

                # turn on the sentinel to keep our build systems clean
                YETUS_ARGS+=(--sentinel)

                # lots of different output formats
                YETUS_ARGS+=("--brief-report-file=${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}/brief.txt")
                YETUS_ARGS+=("--console-report-file=${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}/console.txt")
                YETUS_ARGS+=("--html-report-file=${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}/report.html")
                YETUS_ARGS+=("--junit-results-xml=${WORKSPACE}/${YETUS_RELATIVE_PATCHDIR}/results.xml")

                # enable writing back to Github
                YETUS_ARGS+=(--github-password="${GITHUB_PASSWORD}")
                YETUS_ARGS+=(--github-user=${GITHUB_USER})

                # enable writing back to ASF JIRA
                YETUS_ARGS+=(--jira-issue-re='^YETUS-[0-9]*$')
                YETUS_ARGS+=(--jira-password="${JIRA_PASSWORD}")
                YETUS_ARGS+=(--jira-user="${JIRA_USER}")

                # disable per-line comments
                YETUS_ARGS+=(--linecomments='')

                # auto-kill any surefire stragglers during unit test runs
                YETUS_ARGS+=(--reapermode=report)

                # set a super high proclimit
                YETUS_ARGS+=(--proclimit=2000)

                # rsync these files back into the archive dir
                YETUS_ARGS+=("--archive-list=checkstyle-errors.xml,spotbugsXml.xml")

                # URL for user-side presentation in reports and such to our artifacts
                # (needs to match the archive bits below)
                YETUS_ARGS+=("--build-url-artifacts=artifact/out")

                # plugins to enable
                YETUS_ARGS+=("--plugins=all")

                # don't let these tests cause -1s because we aren't really paying that
                # much attention to them
                YETUS_ARGS+=("--tests-filter=checkstyle,javadoc,rubocop,test4tests")

                if [[ "${USE_DEBUG_FLAG}" == true ]]; then
                  YETUS_ARGS+=("--debug")
                fi

                if [[ -n "${ISSUE_NUM}" ]]; then
                  YETUS_ARGS+=("YETUS-${ISSUE_NUM}")
                fi

                # run in docker mode and specifically point to our
                # Dockerfile since we don't want to use the auto-pulled version.
                if [[ "${USE_DOCKER_FLAG}" == true ]]; then
                  docker pull ubuntu:xenial
                  YETUS_ARGS+=("--docker")
                  YETUS_ARGS+=("--dockerfile=${YETUS_DOCKERFILE}")
                  YETUS_ARGS+=("--docker-cache-from=apache/yetus-base:master")
                else
                  # need to figure this out programmatically; hard-coded for now
                  export JAVA_HOME=/home/jenkins/tools/java/latest1.8
                  export MAVEN_HOME=/home/jenkins/tools/maven/apache-maven-3.2.1
                fi

                # run test-patch from the source tree specified up above
                TESTPATCHBIN=${WORKSPACE}/src/precommit/src/main/shell/test-patch.sh

                # execute! (we are using bash instead of the
                # bin in case the perms get messed up)
                /usr/bin/env bash "${TESTPATCHBIN}" "${YETUS_ARGS[@]}" ${EXTRA_ARGS}

                '''
          }
        }
      }
    }
  }
  post {
    always {
      script {
        // Publish JUnit results
        try {
            junit "${env.YETUS_RELATIVE_PATCHDIR}/results.xml"
        } catch(e) {
            echo 'junit processing: ' + e.toString()
        }
        archiveArtifacts "${env.YETUS_RELATIVE_PATCHDIR}/**"
        // Publish the HTML report so that it can be looked at
        // Has to be relative to WORKSPACE.
        publishHTML (target: [
                      allowMissing: true,
                      keepAll: true,
                      alwaysLinkToLastBuild: true,
                      // Has to be relative to WORKSPACE
                      reportDir: "${env.YETUS_RELATIVE_PATCHDIR}",
                      reportFiles: 'report.html',
                      reportName: 'Yetus Report'
        ])
        if ((env.BRANCH_NAME == 'master') && (env.BUILD_URL.contains('apache.org'))) {
          emailext(subject: '$DEFAULT_SUBJECT',
                   body:
'''For more details, see ${BUILD_URL}

${CHANGES, format="[%d] (%a) %m"}

HTML Version: ${BUILD_URL}Yetus_20Report/


${FILE,path="out/brief.txt"}

''',
                  replyTo: 'dev@yetus.apache.org',
                  to: 'dev@yetus.apache.org'
          )
        }
      }
    }

    // on failure, we send an email to the person who changed
    // the code and the person who requested the job to get run
    failure {
      script {
        if (env.BUILD_URL.contains('apache.org')) {
          emailext(subject: '$DEFAULT_SUBJECT',
                  body:
'''For more details, see ${BUILD_URL}

${CHANGES, format="[%d] (%a) %m"}

HTML Version: ${BUILD_URL}Yetus_20Report/

${FILE,path="out/brief.txt"}
''',
                  recipientProviders: [
                    [$class: 'DevelopersRecipientProvider'],
                    [$class: 'RequesterRecipientProvider']
                  ],
                  replyTo: '$DEFAULT_REPLYTO',
                  to: '$DEFAULT_RECIPIENTS'
          )
        }
      }
    }

    // Jenkins has issues in some configurations sending
    // signals to child processes. Additionally, Github Branch
    // Source plug-in will quickly fill Jenkins build hosts
    // with PR directories.  This cleanup stanze kills
    // any left over processes/containers and frees disk space
    // on exit
    cleanup() {
      script {
        sh '''
            if [ -f "${WORKSPACE}/${PATCHDIR}/pidfile.txt" ]; then
              echo "test-patch process appears to still be running: killing"
              kill `cat "${WORKSPACE}/${PATCHDIR}/pidfile.txt"` || true
              sleep 10
            fi
            if [ -f "${WORKSPACE}/${PATCHDIR}/cidfile.txt" ]; then
              echo "test-patch container appears to still be running: killing"
              docker kill `cat "${WORKSPACE}/${PATCHDIR}/cidfile.txt"` || true
            fi
            '''
        deleteDir()
      }
    }
  }
}