# Changeset in if Block

**URL:** <https://community.jenkins.io/t/changeset-in-if-block/10956>\
**Category:** Ask a question\
**Tags:** question\
**Created:** [November 27, 2023, 11:26am UTC](https://community.jenkins.io/t/changeset-in-if-block/10956 "2023-11-27T11:26:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ShadowKing782k](https://dub1.discourse-cdn.com/flex013/user_avatar/community.jenkins.io/shadowking782k/32/6245_2.png) [@ShadowKing782k](https://community.jenkins.io/u/ShadowKing782k)\
**Post date:** [November 27, 2023, 11:26am UTC](https://community.jenkins.io/t/changeset-in-if-block/10956/1 "2023-11-27T11:26:23Z")

</div>

I have a requriement where I need to initialize few variables based on the folders changed in git repo .  
For example, in git repository, if prod/component1/\* path is changed, I need to set env as prod and component as component1. There are other paths of this format. Can I use changeset with if block and have it one stage instead of having it in multiple stages by using when block?

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<div class="post-metadata">

**Author:** ![poddingue](https://dub1.discourse-cdn.com/flex013/user_avatar/community.jenkins.io/poddingue/32/985_2.png) [@poddingue](https://community.jenkins.io/u/poddingue)\
**Post date:** [November 29, 2023, 9:57am UTC](https://community.jenkins.io/t/changeset-in-if-block/10956/2 "2023-11-29T09:57:59Z")

</div>

Hello @ShadowKing782k and welcome to this community. 👋

I think you can use the `changeset` function in a script block within a single stage to check the paths of the changed files and set environment variables accordingly.

Here’s an untested example:

```groovy
pipeline {
    agent any

    stages {
        stage('Set Variables Based on Changed Paths') {
            steps {
                script {
                    def env
                    def component

                    for (change in currentBuild.changeSets) {
                        for (path in change.paths) {
                            if (path =~ /^prod\/component1\//) {
                                env = 'prod'
                                component = 'component1'
                            }
                            // Add more if conditions here for other paths
                        }
                    }

                    if (env && component) {
                        echo "Environment: ${env}, Component: ${component}"
                        // Set the environment variables
                        env.ENV = env
                        env.COMPONENT = component
                    } else {
                        echo "No matching paths found in the changeset"
                    }
                }
            }
        }
    }
}

```

Here, the `changeset` function is used to get the list of changes in the current build. For each change, the paths of the changed files are checked against a regular expression.  
If a `path` matches the regular expression, the environment variables `ENV` and `COMPONENT` are set accordingly.