salt/.ci/lint

pipeline {
    agent { label 'pr-lint-slave' }
    options {
        timestamps()
        ansiColor('xterm')
        timeout(time: 1, unit: 'HOURS') 
    }
    environment {
        PYENV_ROOT = "/usr/local/pyenv"
        PATH = "$PYENV_ROOT/bin:$PATH"
        PY_COLORS = 1
    }
    stages {
        stage('github-pending') {
            steps {
                githubNotify credentialsId: 'test-jenkins-credentials',
                    description: 'Testing lint...',
                    status: 'PENDING',
                    context: "jenkins/pr/lint"
            }
        }
        stage('setup') {
            steps {
                sh '''
                # Need -M to detect renames otherwise they are reported as Delete and Add, need -C to detect copies, -C includes -M
                # -M is on by default in git 2.9+
                git diff --name-status -l99999 -C "origin/$CHANGE_TARGET" "origin/$BRANCH_NAME" > file-list-status.log
                # the -l increase the search limit, lets use awk so we do not need to repeat the search above.
                gawk 'BEGIN {FS="\\t"} {if ($1 != "D") {print $NF}}' file-list-status.log > file-list-changed.log
                gawk 'BEGIN {FS="\\t"} {if ($1 == "D") {print $NF}}' file-list-status.log > file-list-deleted.log
                touch pylint-report-salt.log pylint-report-tests.log
                eval "$(pyenv init -)"
                pyenv --version
                pyenv install --skip-existing 2.7.14
                pyenv local 2.7.14
                pyenv shell 2.7.14
                python --version
                pip install tox
                '''
                archiveArtifacts artifacts: 'file-list-status.log,file-list-changed.log,file-list-deleted.log'
            }
        }
        stage('linting') {
            failFast false
            parallel {
                stage('salt linting') {
                    when {
                        expression { return readFile('file-list-changed.log') =~ /(?i)(^|\n)(salt\/.*\.py|setup\.py)\n/ }
                    }
                    steps {
                        sh '''
                        eval "$(pyenv init - --no-rehash)"
                        grep -Ei '^salt/.*\\.py$|^setup\\.py$' file-list-changed.log | xargs -r '--delimiter=\\n' tox -e pylint-salt | tee pylint-report-salt.log
                        # remove color escape coding
                        sed -ri 's/\\x1B\\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g' pylint-report-salt.log
                        '''
                        archiveArtifacts artifacts: 'pylint-report-salt.log'
                    }
                }
                stage('test linting') {
                    when {
                        expression { return readFile('file-list-changed.log') =~ /(?i)(^|\n)tests\/.*\.py\n/ }
                    }
                    steps {
                        sh '''
                        eval "$(pyenv init - --no-rehash)"
                        grep -Ei '^tests/.*\\.py$' file-list-changed.log | xargs -r '--delimiter=\\n' tox -e pylint-tests | tee pylint-report-tests.log
                        # remove color escape coding
                        sed -ri 's/\\x1B\\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g' pylint-report-tests.log
                        '''
                        archiveArtifacts artifacts: 'pylint-report-tests.log'
                    }
                }
            }
        }
    }
    post {
        always {
            step([$class: 'WarningsPublisher',
                parserConfigurations: [[
                    parserName: 'PyLint',
                    pattern: 'pylint-report*.log'
                ]],
                failedTotalAll: '0',
                useDeltaValues: false,
                canRunOnFailed: true,
                usePreviousBuildAsReference: true
            ])
            cleanWs()
        }
        success {
            githubNotify credentialsId: 'test-jenkins-credentials',
                description: 'The lint job has passed',
                status: 'SUCCESS',
                context: "jenkins/pr/lint"
        }
        failure {
            githubNotify credentialsId: 'test-jenkins-credentials',
                description: 'The lint job has failed',
                status: 'FAILURE',
                context: "jenkins/pr/lint"
            slackSend channel: "#jenkins-prod-pr", 
                color: '#FF0000', 
                message: "FAILED: PR-Job: '${env.JOB_NAME} [${env.BUILD_NUMBER}]' (${env.BUILD_URL})"
        }
    }
}