帮我写一个pipeline流水线脚本流程包含：拉取分支代码、构建、上传

pipeline { agent any

stages {
    stage('Clone repository') {
        steps {
            git branch: 'your-branch-name', url: 'your-repository-url'
        }
    }

    stage('Build') {
        steps {
            sh 'your-build-command'
        }
    }

    stage('Upload') {
        steps {
            sh 'your-upload-command'
        }
    }
}

}