Creating an Instance of java class using Gradle task? - groovy

I need to start a WireMock server from a gradle task. In java I would do something like this:
WireMockServer wireMockServer = new WireMockServer(wireMockConfig().port(8089));
How can I create this wireMock Server using gradle task ?

It can be done in exactly the same way. Here You've a working example:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.github.tomakehurst:wiremock:1.52'
}
}
import static com.github.tomakehurst.wiremock.core.WireMockConfiguration.wireMockConfig
import com.github.tomakehurst.wiremock.*
apply plugin: 'java'
task someTask {
doLast {
WireMockServer wireMockServer = new WireMockServer(wireMockConfig().port(8089))
println wireMockServer
}
}
If an external library is to be used in build.gradle itself it should be added as a dependency to buildscript block.

Related

How to configure all subprojects that are using NodePlugin in Gradle

I have a multi-project, and a few of its subprojects use the Gradle Plugin for Node.
./subproject/build.gradle:
// GitHub: https://github.com/node-gradle/gradle-node-plugin
plugins {
id "com.github.node-gradle.node" version "3.4.0"
}
// ...
I would now like to configure all of these subprojects from the root build.gradle.
./build.gradle
pluginManager.withPlugin('what.do.i.put.here') {
node {
download = true
}
// ...
}
Now my question: What do I have to put in as parameter for withPlugin? Where do I find the "official" plugin name to use?
Instead of using the pluginManager I found the following way to achieve this:
// This is executed on all subprojects
subprojects {
// This is executed on all subprojects that use the NodeJS plugin (https://github.com/node-gradle/gradle-node-plugin - npm_<...> (e.g., npm_install))
plugins.withId('com.github.node-gradle.node') {
node {
download = true
}
It uses plugins.withId inside of subprojects, using the ID also specified in the plugins section: com.github.node-gradle.node

Gradle 2.4 - Excute a Groovy-Script-file in run-task after compileGroovy-task

I need to start a groovy script during the gradle-run-task after the compileGroovy-task, in order to create some resources. Therefore I have made the following build.gradle-file:
apply plugin: 'groovy'
apply plugin:'application'
repositories {
mavenCentral()
}
dependencies {
compile 'org.codehaus.groovy:groovy-all:2.4.3'
}
task myTask << {
new GroovyShell().run(file('/src/someScript.groovy'))
}
myTask.mustRunAfter(compileGroovy)
myTask.dependsOn(compileGroovy)
Problem is: myTask is never executed when I execute the run-task.
How can I let myTask be executed after compileGroovy-task, which is nested inside run-task?
Try adding:
compileGroovy.finalizedBy(myTask)
It should solve the problem.

Gradle extend task / Create task based on task

New to Groovy, gradle. I want to extend the following task (part of java plugin):
jar {
from { configurations.runtime.collect { zipTree(it) } }
manifest.attributes( 'Implementation-Title': archivesBaseName,
'Implementation-Version': version,
'Main-Class': mainClassName,
'Built-By': POM_DEVELOPER_NAME
)
}
The extended task will have
archiveName = 'PJ-latest.jar'
destinationDir = project.getRootDir()
In typical Java I would have called super but I'm not sure how I can do it in gradle. My best try is to extend the Jar class add the same parameters as jar has and also the dependencies:
task assembleCompiler(type: Jar){
dependsOn compileJava, processResources, classes
archiveName = 'PJ-latest.jar'
destinationDir = project.getRootDir()
from { configurations.runtime.collect { zipTree(it) } }
manifest.attributes( 'Implementation-Title': archivesBaseName,
'Implementation-Version': version,
'Main-Class': mainClassName,
'Built-By': POM_DEVELOPER_NAME
)
}
You'll have to configure the second task separately, like you already did. If you want to share this code, turn it into a plugin.

Override Extra Properties in applied script in gradle

I have a parent gradle script with some common configuration, but I need to override some values. For this values I define extra properties. Next, in a project I apply the parent file, but I'm not able to override the the value. Here is what I try to do, but id doesn't work.
Parent gradle script (parent.gradle)
apply plugin: 'maven'
ext {
artifact = "test"
}
uploadArchives {
repositories.mavenDeployer {
repository(url: 'someUrl') {
authentication(userName: 'username', password: 'password')
}
pom.project {
artifactId artifact
}
}
}
Project gradle script (build.gradle)
apply from: 'parent.gradle'
ext {
artifact = "parent-gradle"
}
...
In the documentation I did not find any reference on how to do this.
Any idea on how I can do this?
Thanks Peter. Moving the ext statement before apply in the build.gradle, and removing it from parent.gradle solved my problem.

Apply configuration to specific projects in gradle build script

I have a gradle project that has java applications as well as android applications.
root/
build.gradle
settings.gradle
java1/
java2/
android1/
android2/
java3/
etc.
What is the best practice for structuring my build script? I am a total gradle novice and am migrating the project from maven to gradle.
I wanted to do something instead of
configure(subprojects) {}
to apply plugins and other specific things.
such as
configure(java1, java2, java3) { // java specifics }
configure(android1, android2) { // android specifics }
I am probably approaching this from the wrong way.
More explicitly I need to apply the plugin java only for the java projects and the android plugin for the android projects.
configure(subprojects.findAll {it.name == "java1" || it.name == "java2"}) {
Under the filtering section in the guide
Hope this helps someone else out.
There are multiple ways, depending on what you want... Some examples:
// Configures just project java1
project(":java1") { ... }
// Configures projects java1 and java2
["java1","java2"].each { name ->
project(":$name") { ... }
}
You can use normal groovy to find/iterate over all the projects.
Another option:
configure([ project(':sub1'), project(':sub2'), ... ]) {
...
}
The shortest and easiest option:
configure(subprojects.findAll()) {
if (it.name.equals('MY_PROJECT')) {
...
} else {
...
}
}
Another approach...
In the settings.gradle you do define your projects like this:
gradle.ext.javaProjects=[]
gradle.ext.androidProjects=[]
javaProject('java1')
javaProject('java2')
javaProject('java3')
androidProject('android1')
androidProject('android2')
def javaProject(String name) {
gradle.ext.javaProjects.add(name)
include ":$name"
}
def androidProject(String name) {
gradle.ext.androidProjects.add(name)
include ":$name"
}
Now you can reference those in your root build.gradle:
def javaProjects = subprojects.findAll {gradle.ext.javaProjects.contains(it.name)};
def androidProjects = subprojects.findAll {gradle.ext.javaProjects.contains(it.name)};
configure(javaProjects) {
...
}
configure(androidProjects) {
...
}
Maybe thats overkill... but i usually have the project definition method in my settings.gradle anyway. E.g. if you want to put all java projects under a java folder you could define things like this:
def javaProject(String name) {
gradle.ext.javaProjects.add(name)
include ":$name"
project(":$name").projectDir = file('java/'+ name)
}

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