pipeline {
    agent {
        label 'docker-amd64-tf-a-bionic'
    }

    parameters {
        string(
            name: 'URL',
            defaultValue: 'https://review.trustedfirmware.org/TF-A/trusted-firmware-a',
            description: 'Repository URL.')

        string(
            name: 'REFSPEC',
            defaultValue: '+refs/heads/*:refs/remotes/origin/*',
            description: 'Git refspec used when fetching.')

        string(
            name: 'REFNAME',
            defaultValue: 'origin/master',
            description: 'Git refname of the last commit to lint.')

        string(
            name: 'REFNAME_BASE',
            defaultValue: 'origin/master',
            description: 'Git refname of the parent of the first commit to lint.')
    }

    stages {
        stage('Checkout') {
            steps {
                checkout([$class: 'GitSCM',
                    branches: [[name: params.REFNAME]],
                    userRemoteConfigs: [[
                        url: params.URL,
                        refspec: params.REFSPEC]]])

                script {
                    mergeBase = sh(
                        returnStdout: true,
                        script: "git merge-base ${params.REFNAME_BASE} HEAD").trim()
                }
            }
        }

        stage('Lint') {
            steps {
                script {
                    if (fileExists('.nvmrc')) {
                        sh "bash -c 'nvm install'"
                    }
                }

                sh "bash -c 'npm install --no-save commitlint'"
                sh "bash -c 'npx commitlint --from=${mergeBase}'"
            }
        }
    }
}