Jenkinsfile分支设置时对模式的评估是什么? [英] What's the pattern evaluation on Jenkinsfile when-branch setting?

问题描述

我正在尝试在阶段内的when语句上检测分支模式.

I am trying to detect the branch pattern on a when statement inside a stage.

赞:

stage('deploy to staging') {
agent label:'some-node'
when { branch "feature/*" }
steps {
    sh './deploy_pr.sh'
}

}

如果我想要更复杂的图案怎么办?

What if I want a more complicated pattern?

我正在尝试检测诸如feature/0.10.25之类的内容，并且以下模式不起作用:

I am trying to detect something like feature/0.10.25 and the following pattern doesn't work:

when { branch 'feature/[0-9]+.[0-9]+.[0-9]+' }

不起作用.根据 https://regexr.com/

推荐答案

好！因此，通过错误堆栈跟踪，我发现在分支分支选项中，Jenkins与Ant样式模式进行了比较: https://ant.apache.org/manual/dirtasks.html

Ok ! So, through the error stack trace I found out that on the when-branch option, Jenkins compares with Ant style patterns: https://ant.apache.org/manual/dirtasks.html

这意味着它不希望使用正则表达式，而是更简单的东西，例如:

That means it doesn't expect regexp, but simpler stuff like:

        */staging/*

我改用when-expression选项解决了这个问题，

I solved this by using the when-expression option instead, like this:

        when { 
            expression { BRANCH_NAME ==~ /feature\/[0-9]+\.[0-9]+\.[0-9]+/ }
        }

它使用groovy表达式，如下所述:

That uses groovy expressions as described here:

https://www.regular-expressions.info/groovy.html

尤其是寻找==〜运算符的解释，这很有帮助.

Especially, look for the explanation of the ==~ operator, that was helpful.

对于正则表达式本身，您可以在此处进行测试:

For the regular expression itself, you can test yours here:

https://regexr.com/

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