如何在 Jenkinsfile 中进行字符串到整数的转换？

Question

我的 Jenkinsfile 中有以下内容：

pipeline {
    agent none
    environment {
        timeout_mins = 1
    }
    options {
        timeout(time: "${env.timeout_mins}", unit: 'MINUTES')
    }
    stages {
        stage("test print") {
            steps {
                echo "timeout_mins: ${env.timeout_mins}"
                sh "sleep 120"
            }
        }
    }
}

我想在多个地方重复使用诸如 timeout_mins 之类的环境参数，但需要在某些插件的某些地方将其转换为整数。我在上面的例子中得到的错误如下：

Processing environment for org.jenkinsci.plugins.workflow.job.properties.PipelineTriggersJobProperty
java.lang.IllegalArgumentException: Could not instantiate {time=null, unit=MINUTES} for TimeoutStep(time: int, unit?: TimeUnit[NANOSECONDS, MICROSECONDS, MILLISECONDS, SECONDS, MINUTES, HOURS, DAYS]): java.lang.ClassCastException: org.jenkinsci.plugins.workflow.steps.TimeoutStep.time expects int but received class java.lang.String
    at org.jenkinsci.plugins.structs.describable.DescribableModel.instantiate(DescribableModel.java:264)
    at org.jenkinsci.plugins.workflow.steps.StepDescriptor.newInstance(StepDescriptor.java:194)
    at org.jenkinsci.plugins.workflow.cps.DSL.invokeStep(DSL.java:181)
    at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:126)
    at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:108)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at com.cloudbees.groovy.cps.sandbox.DefaultInvoker.methodCall(DefaultInvoker.java:18)
    at 

有没有人有办法在 Jenkinsfile 中将 String 转换为 int？

我试过 time: env.timeout_mins，但结果为空。

time: ${env.timeout_mins}, 产生: WorkflowScript: 7: Method call arguments @ line 7, column 23. timeout(time: ${env.timeout_mins}, unit: 'MINUTES')

time: ${env.timeout_mins}.toInteger()，同上

time: ${env.timeout_mins.toInteger()}，同上

还有什么我可以尝试的吗？

Answer 1

这不是转换失败，而是您无法在选项块中引用环境变量。

这也会失败（空指针异常）：

pipeline {
    agent none
    environment {
        timeout_mins = 'MINUTES'
    }
    options {
        timeout(time: 1, unit: env.timeout_mins)
    }
    stages {
        stage("test print") {
            steps {
                echo "timeout_mins: ${env.timeout_mins}"
                sh "sleep 120"
            }
        }
    }
}

这有效：

def timeout_in_minutes = 1

pipeline {
    agent none
    options {
        timeout(time: timeout_in_minutes, unit: 'MINUTES')
    }
    stages {
        stage("test print") {
            steps {
                echo "timeout_in_minutes: ${env.timeout_in_minutes}"
                sh "sleep 120"
            }
        }
    }
}