jenkins - 我何时以及为什么应该在 Jenkinsfiles catch block 中抛出错误？ (脚本化管道)

Question

我的脚本管道看起来像这样:

Node {
    try {


        // If tests fail, I want to report the JUNIT results and skip the rest of the pipeline
        stage('Run Tests') {
            try {
                sh './gradlew test'
            } catch (err) {
                currentBuild.result = 'FAILURE'
                echo "Caught err: ${err}"
                throw err // Should I throw this error? Will it prevent anything? Do I need it? Is it good to have?
            }
        }

        stage('Build Jar') {
            try {
                sh './gradlew fatJar'
            } catch (err) {
                currentBuild.result = 'FAILURE'
                echo "Caught err: ${err}"
                throw err // Same with this one
            }
        }

        stage('Deploy') {
            try {
                echo "// if success, deploy"
            } catch (err) {
                currentBuild.result = "FAILURE"
                echo "Error deploying, Caught: ${err}"
                throw err // Do I need to rethrow this?
            }

        }

    } catch (err) {
        echo "${err}"
        throw err // Will this catch all errors? Will I be missing stacktraces?
    } finally {
        junit '**/TEST-*.xml'
        archiveArtifacts artifacts: '**/TEST-*.xml, **/build/libs/*.jar', fingerprint: true
    } // end global try/catch
} // end node

我想知道什么时候应该在阶段的 try/catch 中抛出错误，以及对于某些事情(部署)是否需要这种错误，或者对于其他事情(测试)是否应该避免这种情况。

如果我在 try/catch 中抛出错误，管道会立即退出吗？

文档非常不清楚，并且在某些情况下是矛盾的。

Answer 1

如果您想要停止管道，则应该抛出异常，如果您想要自定义错误消息，则可以使用 error 管道函数。

参见:

            stage('Gradle Clean and Test') {
            try {
                sh './gradlew clean'
                sh './gradlew test --tests "*validateFiles*"'
                sh 'exit 1' // purposefully throwing this for demonstration
            } catch (err) {
                currentBuild.result = 'FAILURE' // Set to Failure
                echo "Gradle Clean and Test failed: ${err.getMessage()}" // Print Error Log Message
                error "Failed during Gradle Clean and Test... Check Logs" // Throw new error to quit out of pipeline, and give a custom message for final catch block
            }
        } // end stage('Gradle Clean and Test')

echo "Gradle Clean and Test failed: ${err.getMessage()}" 会将错误消息放入日志中，以供以后检索

并且 错误“Gradle Clean 和 Test 期间失败...检查日志” 将发送一个错误，由节点的全局 catch block 捕获，并且如果您使用，可以在 Slack 消息中轻松看到err.message 在最终的 catch block 中。