Hello everyone,
I’m new to gradle, please pardon me if I’m not very clear 
. So I’m working on a custom gradle plugin for my organisation. We have +300 projects and we are moving from Ant to Gradle.
In that plugin I want to generate and configure custom tasks related to the plugin extension.
Please imagine the following configuration.
my {
batches {
main {
mainClass = "my.custom.class"
}
second {
mainClass = "my.custom.otherclass"
}
// ... more...and more
}
}
Will generate the following task for example : buildMainBatch, deployMainBatch, buildSecondBatch…
So I create the following plugin
class MyPlugin implements Plugin<Project> {
@Override
void apply(Project project) {
def batches = project.container(Batch)
def extension = project.extensions.create(MyExtension.EXTENSION_NAME, MyExtension, batches)
// Only java
project.plugins.withType(JavaPlugin) {
project.with {
ext.buildBatch = BuildBatchTask
ext.deployBatch = DeployBatchTask
}
}
project.afterEvaluate {
batches.all { batch ->
// build batch
def buildTaskName = "build${name.capitalize()}Batch"
project.task(buildTaskName, type: BuildBatchTask, group: EXTENSION_NAME) {
mainClass = batch.mainClass
}
// deploy batch
def deployTaskName = "deploy${name.capitalize()}Batch"
project.task(deployTaskName, dependsOn: buildTaskName, type: DeployBatchTask, group: EXTENSION_NAME)
}
}
}
}
The extension class
class MyExtension {
static final String EXTENSION_NAME = "my"
final NamedDomainObjectContainer<Batch> batches
MyExtension(batches) {
this.batches = batches
}
def batches(Closure closure) {
batches.configure(closure)
}
}
and this is the task
class BuildBatchTask extends Jar {
@Input
String mainClass = "my.default.mainclass"
BuildBatchTask() {
super
project.afterEvaluate {
doFirst {
applyManifest()
}
}
}
public void applyManifest() {
manifest.attributes("Main-Class" : mainClass)
}
}
The problem is that the task is not executed properly. I guess the fact that I have two project.afterEvaluate in my code is the reason why it can’t work.
Is somebody can help me understand why this doesn’t work and maybe help me find a solution.
Best regards 