Grails Dependency Generator Gradle Task

The Grails Dependency Generator Task is a Gradle task that can produce the various Maven POM files required to build Grails applications and plugins. The task uses the org.codehaus.groovy.grails.resolve.GrailsCoreDependencies class from the grails-bootstrap module to determine the dependencies (and their exclusions) that should be included in the POM for the requested scope.

Usage

In order to use the Grails Dependency Generator Task, the project must first be built and pushed to a repository:

gradle clean install

Once the task JAR has been built and pushed to your local repository, you can use the task in any Gradle project:

buildscript {
    repositories {
        mavenLocal()
        maven {
            url 'http://repo.grails.org/grails/core'
        }
        mavenCentral()
    }

    dependencies {
		classpath("org.grails:grails-dependency-generator-task:1.0.0-SNAPSHOT") {
			transitive = false
		}
	    classpath("org.grails:grails-bootstrap:2.1.1") {
			transitive = false
		}
    }
}

...

task generate(type: org.grails.gradle.task.dependency.GrailsDependencyGenerationTask) {
	grailsVersion = '2.1.1'
	scope = 'runtime'
}

To run the task from your Gradle project, simply use the following:

gradle generate

Parameters

The Gradle task supports the following parameters/properties:

• grailsVersion The version of Grails used to generate the POM file (required, no default)
• scope The dependency scope used to select dependencies for inclusion in the generated POM file (optional, default = runtime)

Generated POM File

The Gradle task generates a Maven POM file with the following GAV:

<groupId>org.grails</groupId>
<artifactId>grails-${dependencyScope}-dependencies</artifactId>
<packaging>pom</packaging>
<version>${grailsVersion}</version>

where the dependencyScope is the value scope parameter passed to the task and the grailsVersion is the grailsVersion scoped also passed to the task.

Scopes

The Grails Dependency Generator Task currently supports the following scopes:

• build (mapped to the Maven compile scope)
• compile (mapped to the Maven compile scope)
• docs (mapped to the Maven compile scope)
• provided (mapped to the Maven provided scope)
• runtime (mapped to the Maven runtime scope)
• test (mapped to the Maven test scope)

These scopes map to the Ivy scopes used in the aforementioned GrailsCoreDependencies class. By default, a scope value of runtime is used if no value is provided to the task.