CODEWITHSUNDEEP
gradlegroovyjenkins-pipeline
Boon
Boon

Reputation: 1173

Adding a Jenkinsfile for compilation by Gradle

I have a Gradle build with the source sets configured like so:

sourceSets {
    main {
        groovy {
            srcDir 'src'
        }
    }
}

I have a Jenkinsfile in the root project directory that I would like to have compiled so that I can detect non-valid Groovy before it gets merged to the master branch and breaks the Jenkins build.

How can I add this single file to the source sets of the Gradle project for compilation? How can I ensure that Gradle compiles it even though it's not got a .groovy extension?

Upvotes: 4

Views: 997

Answers (1)

OlgaMaciaszek
OlgaMaciaszek

Reputation: 3912

You can add additional sourceSet like this:

sourceSets {
    jenkins {
        groovy {
            srcDir "$projectDir"
            include "JenkinsFile"
        }
    }
    main {
        groovy {
            srcDir 'src'
        }
    }
}

However, the problem is that you will not be able to compile a text file as Groovy. What you can do, however, is set up a task to create, compile, and delete a new .groovy file containing the contents of the Jenkins file before the groovy compilation. The final build file doing these things would look like this:

apply plugin: 'groovy'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

sourceSets {
    jenkins {
        groovy {
            srcDir "$projectDir"
            include "JenkinsFile.groovy"
        }
    }
    main {
        groovy {
            srcDir 'src'
        }
    }
}

task(createGroovyFile) {
    File jenkinsFile = new File("$projectDir/JenkinsFile")
    File groovyFile = new File("$projectDir/JenkinsFile.groovy")
    if(groovyFile.exists()) groovyFile.delete()
    groovyFile.newDataOutputStream() << jenkinsFile.readBytes()
}

task(deleteGroovyFile, type: Delete) {
    File groovyFile = new File("$projectDir/JenkinsFile.groovy")
    delete(groovyFile)
}


compileGroovy.dependsOn deleteGroovyFile
deleteGroovyFile.dependsOn compileJenkinsGroovy
compileJenkinsGroovy.dependsOn createGroovyFile

configurations {
    jenkinsCompile.extendsFrom compile
}

dependencies {
    compile   "org.codehaus.groovy:groovy-all:2.4.10"
}

Upvotes: 1

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