Running Groovy scripts from Gradle using a different version of Groovy

Question

I am using Gradle 1.6 which comes with Groovy 1.8.6 and here comes the problem, I want to execute groovy script which need Groovy 2+, but Gradle is running this script with his own groovy (1.8.6) and my custom task is failing.

And what prevents you from backporting your script to work with groovy 1.8.x? — fge
– fge, Commented Jun 28, 2013 at 12:02
«Groovy 1.8.x cant parse large XML files» is completely false — moskiteau
– moskiteau, Commented Jun 28, 2013 at 13:16

M. Justin · Accepted Answer · 2023-11-17 17:41:57Z

81

You can create directory src/main/groovy, put your script called myscript.groovy in there:

println "hello world from groovy version ${GroovySystem.version}"

Then, have a build.gradle file in your project root directory:

apply plugin: 'groovy'

repositories {
    mavenCentral()
}

dependencies {
    compile 'org.codehaus.groovy:groovy-all:2.0.5'
}

task runScript (dependsOn: 'classes', type: JavaExec) {
    main = 'myscript'
    classpath = sourceSets.main.runtimeClasspath
}

Then, you can execute your script (with output)

hw@hbook:ex $ gradle runScript
:compileJava UP-TO-DATE
:compileGroovy
:processResources UP-TO-DATE
:classes
:runScript
hello world from groovy version 2.0.5

BUILD SUCCESSFUL

Total time: 6.118 secs

edited Nov 17, 2023 at 17:41

M. Justin

23.2k12 gold badges133 silver badges168 bronze badges

answered Jun 28, 2013 at 18:07

Hans Westerbeek

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Comments

Mattias Olofsson · Accepted Answer · 2022-02-24 16:15:49Z

0

If you want to run scripts that uses @Grab you have to add ivy to compiler task

configurations {
    ivy
}

dependencies {
    ivy 'org.apache.ivy:ivy:2.4.0'
}

tasks.withType(GroovyCompile) {
    groovyClasspath += configurations.ivy
}

answered Feb 24, 2022 at 16:15

Mattias Olofsson

1

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