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Jenkins:在全局函数的主体中获取环境变量

我在 PublishGitHub.groovy 上有一个共享的全局函数,如下所示:

#!/usr/bin/env groovy
def call(body)
{
    def config = [:]
    body.resolveStrategy = Closure.DELEGATE_FIRST
    body.delegate = config

    echo "\u001B[32mINFO: Publishing...\u001B[m"
    body()
    echo "\u001B[32mINFO: End Publish...\u001B[m"      
}
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以及我的 JenkinsFile 上的代码:

environment {
    VERSION = "v1.3.${env.BUILD_NUMBER}"
}
stages {
    stage ('Publish WebAPI'){
        steps{
            echo "\u001B[32mINFO: Start Publish...\u001B[m"

            PublishGitHub{
                echo "This is a body with version: ${env.VERSION}"
            }               
        }
    }
}
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这是我的输出:

[Pipeline] echo
INFO: Start Publish...
[Pipeline] echo
INFO: Publishing...
[Pipeline] }
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并遵循下一个错误:

java.lang.NullPointerException:无法在空对象上获取属性“VERSION”

因为我在body里面没有访问环境变量?

groovy jenkins jenkins-plugins jenkins-pipeline

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