pipeline {
    agent none

    stages {
        stage('Build') {
            parallel {
                stage('HTML') {
                    agent {
                        docker {
                            image 'silex/emacs:27.1-alpine-dev'
                            args '-u root --privileged'
                        }
                    }

                    steps {
                        sh 'cask'
                        sh 'make html'
                        // Because we're running in root, the public/ directory
                        // isn't owned by the Jenkins user, meaning that
                        // unstashing in a different stage fails.
                        sh 'chown -R $(stat -c "%u" .):$(stat -c "%u" .) public'
                        stash includes: 'public/**', name: 'public_html'
                    }
                }

                stage('CSS') {
                    agent { dockerfile true }

                    steps {
                        sh 'make css'
                        stash includes: 'public/**', name: 'public_css'
                    }
                }
            }
        }

        stage('Deploy') {
            agent {
                docker {
                    image 'instrumentisto/rsync-ssh'
                    args '-u root --privileged'
                }
            }

            steps {
                unstash 'public_html'
                unstash 'public_css'

                withCredentials([file(credentialsId: 'ryuslash.org-deploy-key-2', variable: 'KEY_FILE'),
                                 file(credentialsId: 'ryuslash-known-hosts', variable: 'KNOWN_HOSTS_FILE')]) {
                    sh 'rsync -e "ssh -p 4511 -o \\"UserKnownHostsFile $KNOWN_HOSTS_FILE\\" -i $KEY_FILE" -v -c -r --delete public/ "site@ryuslash.org:public_html/"'
                }
            }
        }
    }
}