Jenkins管道中的条件步骤/阶段

问题描述

仅在构建特定分支时如何运行构建步骤/阶段?

How do you run a build step/stage only if building a specific branch?

例如，仅在分支名为deployment时运行部署步骤，而其他所有内容都保持不变.

For example, run a deployment step only if the branch is called deployment, leaving everything else the same.

推荐答案

在声明性管道语法中进行相同的操作，以下是一些示例:

Doing the same in declarative pipeline syntax, below are few examples:

stage('master-branch-stuff'){
  agent any
  when{
    branch 'master'
  }
  steps {
    echo 'run this stage - ony if the branch = master branch'
  }
}

stage('feature-branch-stuff') {
    agent label:'test-node'
    when { branch "feature/*" }
    steps {
        echo 'run this stage - only if the branch name started with feature/'
    }
}

stage('expression-branch') {
    agent label:'some-node'
    when {
    expression {
        return env.BRANCH_NAME != 'master';
        }
    }
    steps {
        echo 'run this stage - when branch is not equal to master'
    }
}

stage('env-specific-stuff') {
    agent label:'test-node'
    when {
      environment name: 'NAME', value: 'this'
    }
    steps {
        echo 'run this stage - only if the env name and value matches'
    }
}

出现更有效的方法- https://issues.jenkins-ci.org/browse/JENKINS-41187
还请看- https://jenkins.io/doc/book/pipeline/syntax/#when

More effective ways coming up -https://issues.jenkins-ci.org/browse/JENKINS-41187
Also look at -https://jenkins.io/doc/book/pipeline/syntax/#when

更新
新的WHEN条款
REF: https://jenkins.io/blog/2018/04/09/whats-in-declarative

UPDATE
New WHEN Clause
REF: https://jenkins.io/blog/2018/04/09/whats-in-declarative

changeRequest-以最简单的形式，如果满足以下条件，则将返回true 管道正在构建变更请求，例如GitHub拉取请求. 您还可以针对更改请求进行更详细的检查， 允许您问这是对主人的变更请求吗? 分支?"等等.

changeRequest - In its simplest form, this will return true if this Pipeline is building a change request, such as a GitHub pull request. You can also do more detailed checks against the change request, allowing you to ask "is this a change request against the master branch?" and much more.

buildingTag-一个简单的条件，仅检查管道是否为 针对SCM中的标签而不是分支或特定 提交参考.

buildingTag - A simple condition that just checks if the Pipeline is running against a tag in SCM, rather than a branch or a specific commit reference.

tag-更详细的等价于buildingTag，可让您检查 标记名称本身.

tag - A more detailed equivalent of buildingTag, allowing you to check against the tag name itself.

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