Apply plugin in precompile script with Gradle and Kotlin - gradle

I'm trying to apply precompile script gradle.kts file (gradle.kts script is put in buildSrc/main/java. everything work normally except that i can not add a plugin with version. for example my test.gradle.kts
plugins {
id("io.gitlab.arturbosch.detekt") version "1.1.1"
}
but always got the error
Invalid plugin request [id: 'io.gitlab.arturbosch.detekt', version: '1.1.1']. Plugin requests from precompiled scripts must not include a version number. Please remove the version from the offending request and make sure the module containing the requested plugin 'io.gitlab.arturbosch.detekt' is an implementation dependency of project ':buildSrc'.
And also I cannot the class to configure extension
For example, this normally configuration is not working
configure<DetektExtension>
How can we specify plugin version in precompile script? and how can we configure the plugin?

Without being able to see your build structure and file tree I can only answer based on how I'm understanding your question. Based on the error message you are receiving, you should be declaring the plugin dependency in the project level build.gradle.kts:
plugins {
id("io.gitlab.arturbosch.detekt") version "1.1.1"
}
Then in your buildSrc/build.gradle implement it like so:
plugins {
`io.gitlab.arturbosch.detekt`
}
Gradle has samples on GitHub, from which I drew this example, here:
https://github.com/gradle/kotlin-dsl-samples/tree/master/samples/multi-kotlin-project-with-buildSrc

Related

Gradle Idea plugin - issues with specifing test sources

I'm trying to create a custom source set and mark its contents in Intellij Idea as a Test Sources Root. I tried to use idea plugin and do it according to the gradle official website but it is not clear for me how it works.
First of all the documentation specifies the following configuration setup
idea {
module {
testSources.from(sourceSets["intTest"].java.srcDirs)
}
}
When I try to use it i receive Unresolved reference: testSources. Where is it coming from?
Then I tried to use:
idea {
module {
testSourceDirs = intTest.java.srcDirs
}
}
it works fine as long as I use only Java. After applying Kotlin plugin however, both kotlin and java + resources folder are again treated as Sources Root not Test Sources. To fix that I had to change from:
testSourceDirs = intTest.java.srcDirs
to:
testSourceDirs = intTest.kotlin.srcDirs
and now all folders are Test Source Root again. Since kotlin.srcDirs also includes java.srcDirs it looks like you have to specify all, otherwise it is ignored...
Now the real issue came when I used gradle-avro-plugin. Applying it made my folders marked as Sources Root again. I believe it is because it adds another avro directory, but just to main source set.
Does anyone know how to make it marked as Test Sources having both kotlin and avro plugin applied? Am I doing something wrong here? Beacause this beheviour seems to be buggy in the first place.
Tested with:
IntelliJ IDEA 2022.3.1 (Ultimate Edition)
Gradle 6.8.3 and 7.4.2
Plugin id("com.github.davidmc24.gradle.plugin.avro") version "1.5.0"
Plugin kotlin("jvm") version "1.7.0"

Git repository with Maven project as a Gradle source dependency

This article describes an interesting feature of Gradle 4.10+ called a source dependency:
https://blog.gradle.org/introducing-source-dependencies
It allows to use a Git (for example a GitHub) source code repository to build a dependency from it. However it seems like it supports only Gradle projects as source dependencies. Is it possible to use a Maven project as well and if it's possible, please show an example.
When I try to use this feature with Maven project Gradle tries to find the build.gradle file there anyway (I see it when run Gradle with the --info option) and fails with an error message like:
Git repository at https://github.com/something/something.git did not contain a project publishing the specified dependency.
The short answer
... is: "no".
Under the hood, source dependencies are composite builds. These needs to be Gradle projects as the external projects are sort of merged with the main project.
The long answer
... is: "yes but it is hard".
It is actually mentioned in the same blog post you linked to (emphasis mine):
Source dependencies make these use cases simpler to implement. Gradle takes care of automatically checking out the correct versions of dependencies, making sure the binaries are built when required. It does this everywhere that the build is run. The checked out project doesn’t even need to have an existing Gradle build. This example shows a Gradle build consuming two source dependencies that have no build system by injecting a Gradle build via plugins. The injected configuration could do anything a regular Gradle plugin can do, such as wrapping an existing CMake or Maven build.
Because it sounded like it wasn't the biggest thing in the world to create bridge between a Maven and a Gradle project in source dependencies, I gave it a shot. And I have it working except for transitive dependencies. You will basically need to do what is shown in the examples linked to above, but instead of building native libraries, you make a call-out to Maven (e.g. using a Maven plugin for Gradle).
However, the scripts I ended up with are complex enough that I would suggest you instead build the Maven project yourself, deploy it to a local Maven repository and then add that repository to the Gradle project.
<edit>
The loooooooong answer
Alright, so here is how to actually do it. The feature is poorly documented, and appears to be mostly targeted towards native projects (like C++ or Swift).
Root project setup
Take a normal Gradle project with the Java plugin applied. I did a "gradle init" in an empty folder. Assume that in this project, you are depending on a library called `` that you later want to include as a source dependency:
// [root]/build.gradle
dependencies {
implementation 'org.example:my-maven-project:1.1'
}
Note that the version number defined here must match a Git tag in the repository. This is the code revision that will be checkout out.
Then in the settings file, we define a source dependency mapping for it:
// [root]/settings.gradle
rootProject.name = 'my-project'
includeBuild('plugins') // [1]
sourceControl {
gitRepository("https://github.com/jitpack/maven-simple") { // [2]
producesModule("org.example:my-maven-project") // [3]
plugins {
id "external-maven-build" // [4]
}
}
}
[1]: This includes a Gradle project called plugins that will be explained later.
[2]: This is just an arbitrary Maven project that I found, which was relatively simple. Substitute with the actual repository you have.
[3]: This is the name of the Maven module (the same as in the dependency block) that we are defining a source build for
[4]: This defines a custom settings plugin called external-maven-build that is defined in the plugins project, which will be explained later.
Plugins project structure
Inside the root project, we define a new Gradle project. Again, you can use gradle init to initialize it as a Groovy (or whatever you like) project. Delete all generated sources and tests.
// [root]/plugins/settings.gradle
// Empty, but used to mark this as a stand-alone project (and not part of a multi-build)
// [root]/plugins/build.gradle
plugins {
id 'groovy'
id 'java-gradle-plugin' // [1]
}
repositories {
gradlePluginPortal() // [2]
}
dependencies {
implementation "gradle.plugin.com.github.dkorotych.gradle.maven.exec:gradle-maven-exec-plugin:2.2.1" // [3]
}
gradlePlugin {
plugins {
"external-maven-build" { // [4]
id = "external-maven-build"
implementationClass = "org.example.ExternalMavenBuilder"
}
}
}
[1]: In this project, we are defining a new Gradle plugin. This is a standard way to do that.
[2]: To invoke Maven, I am using another 3rd party plugin, so we need to add the Gradle plugin portal as a repository.
[3]: This is the plugin used to invoke Maven. I am not too familiar with it, and I don't know how production ready it is. One thing I noticed is that it does not model inputs and outputs, so there are no built-in support for up-to-date checking. But this can be added retrospectively.
[4]: This defines the custom plugin. Notice that it has the same ID as used in the settings file in the root project.
Plugin implementation class
Now comes the fun stuff. I chose to do it in Groovy, but it can be done in any supported JVM languages of cause.
The plugin structure is just like any other Gradle plugin. One thing to note is that it is a Settings plugin, whereas you normally do Project plugins. This is needed as it we are basically defining a Gradle project at run-time, which needs to be done as part of the initialization phase.
// [root]/plugins/src/main/groovy/org/example/ExternalMavenBuilder.groovy
package org.example
import com.github.dkorotych.gradle.maven.exec.MavenExec
import org.gradle.api.Plugin
import org.gradle.api.artifacts.ConfigurablePublishArtifact
import org.gradle.api.initialization.Settings
class ExternalMavenBuilder implements Plugin<Settings> {
void apply(Settings settings) {
settings.with {
rootProject.name = 'my-maven-project' // [1]
gradle.rootProject {
group = "org.example" //[2]
pluginManager.apply("base") // [3]
pluginManager.apply("com.github.dkorotych.gradle-maven-exec") // [4]
def mavenBuild = tasks.register("mavenBuild", MavenExec) {
goals('clean', 'package') // [5]
}
artifacts.add("default", file("$projectDir/target/maven-simple-0.2-SNAPSHOT.jar")) { ConfigurablePublishArtifact a ->
a.builtBy(mavenBuild) // [6]
}
}
}
}
}
[1]: Must match the Maven module name
[2]: Must match the Maven module group
[3]: Defines tasks like "build" and "clean"
[4]: The 3rd party plugin that makes it more easy to invoke Maven
[5]: For options, see https://github.com/dkorotych/gradle-maven-exec-plugin
[6]: Adds the Maven output as an artifact in the "default" configuration
Be aware that it does not model transitive dependencies, and it is never up-to-date due to missing inputs and outputs.
This is as far as I got with a few hours of playing around with it. I think it can be generalized into a generic plugin published to the Gradle portal. But I think I have too much on my plate as it is already. If anyone would like to continue on from here, you have my blessing :)

Use Groovy app and test code in combination with jlink solution for bundling JavaFX

This follows on from this excellent solution to the question of how to get Gradle to bundle up JavaFX with your distributions.
NB specs: Linux Mint 18.3, Java 11, JavaFX 13.
That stuff, involving jlink and a module-info.java, is beyond my pay grade (although I'm trying to read up on these things).
I want to move to using Groovy in my app and test code (i.e. Spock) rather than Java. The trouble is, the minute I include the "normal" dependency in my build.gradle i.e.
implementation 'org.codehaus.groovy:groovy-all:2.5.9'
and try to build, I get multiple errors:
mike#M17A ~/IdeaProjects/TestProj $ ./gradlew build
> Configure project :
Found module name 'javafx.jlink.example.main'
> Task :compileTestJava FAILED
error: the unnamed module reads package org.codehaus.groovy.tools.shell.util from both org.codehaus.groovy.groovysh and org.codehaus.groovy
[...]
error: the unnamed module reads package groovy.xml from both org.codehaus.groovy and org.codehaus.groovy.xml
[...]
error: module org.codehaus.groovy.ant reads package groovy.lang from both org.codehaus.groovy and org.codehaus.groovy.test
error: module org.codehaus.groovy.ant reads package groovy.util from both org.codehaus.groovy.xml and org.codehaus.groovy.ant
100 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileTestJava'.
Yes, 100 errors... probably more! By commenting out various things I think I've come to the conclusion that some Groovy dependency is being injected by the jlink stuff. Fine, I can live with that (although it'd be nice to know what version of Groovy it is).
The trouble is, even if I omit the Groovy dependency line, the same errors occur when I try to introduce the Spock dependency:
testImplementation 'org.spockframework:spock-core:1.2-groovy-2.5'
Has anyone got any idea what's going on here and what to do about it?
I searched for an answer. I didn't find a good solution.
According to this, it seems that Groovy is currently not really compatible with Java modules. It is due to the fact that some packages are contained by multiple jars of the library (not compatible with modules). You will have to wait for Groovy 4 for a compatible version.
I discovered that the JavaFX plugin use this plugin internally. This plugin seems to consider that all dependencies are modules (it is not the default Gradle behaviour).
To make your application works, it seems that you have to:
force Gradle to put Groovy in the classpath instead of the modulepath (it will not be considerered as a module, but seems impossible if you use the javafx plugin)
use the "patch-module" system: it allows Gradle to make a fusion of the library jars into a single module, to prevent the problem of packages that are in different jars
I searched the Groovy jars with IDEA (Project structure/Libraries), and I tried to use the syntax offered by the plugin to use "patch-module":
patchModules.config = [
"org.codehaus.groovy=groovy-ant-3.0.1.jar",
"org.codehaus.groovy=groovy-cli-picocli-3.0.1.jar",
"org.codehaus.groovy=groovy-console-3.0.1.jar",
"org.codehaus.groovy=groovy-datetime-3.0.1.jar",
"org.codehaus.groovy=groovy-docgenerator-3.0.1.jar",
"org.codehaus.groovy=groovy-groovydoc-3.0.1.jar",
"org.codehaus.groovy=groovy-groovysh-3.0.1.jar",
"org.codehaus.groovy=groovy-jmx-3.0.1.jar",
"org.codehaus.groovy=groovy-json-3.0.1.jar",
"org.codehaus.groovy=groovy-jsr-3.0.1.jar",
"org.codehaus.groovy=groovy-macro-3.0.1.jar",
"org.codehaus.groovy=groovy-nio-3.0.1.jar",
"org.codehaus.groovy=groovy-servlet-3.0.1.jar",
"org.codehaus.groovy=groovy-sql-3.0.1.jar",
"org.codehaus.groovy=groovy-swing-3.0.1.jar",
"org.codehaus.groovy=groovy-templates-3.0.1.jar",
"org.codehaus.groovy=groovy-test-junit-3.0.1.jar",
"org.codehaus.groovy=groovy-test-3.0.1.jar",
"org.codehaus.groovy=groovy-testng-3.0.1.jar",
"org.codehaus.groovy=groovy-xml-3.0.1.jar"
]
It only works with a single line "org.codehaus.groovy=X.jar", but a bug prevents it to work with all of the library jars (Look at this issue on Github).
So you have multiple choices:
Use Java instead of Groovy
Wait for a new Groovy release, or new releases of plugins (modules-plugin, and a version of javafx-plugin that use this one internally)
Use old javafx configuration: dependencies are not module by default, and you have to specify manually in build.gradle that JavaFX dependencies should be considered as a module (check my "obsolete" answer to this question)

How to use Afterburner.fx with Gradle instaed of Maven 3, while leaving the original project structure of afterburner.fx

afterburner.fx for JavaFX 8 is a minimalistic (3 classes) JavaFX MVP framework based on Convention over Configuration and Dependency Injection created by Adam Bien.
afterburner.fx use Maven 3.
I would like to use it with Gradle.
How to use Afterburner.fx with Gradle instaed of Maven 3, while leaving the original project structure of afterburner.fx ?
In the build.gradle File add dependencies
dependencies {
compile group: 'com.airhacks', name:'afterburner.fx', version: afterburnerfxVersion
}
In the build.gradle File add the additional Resources (.fxml , .css , .properties)
sourceSets.main.resources.srcDirs("src/main/java").includes.addAll(["**/*.fxml", "**/*.css", "**/*.properties"])
and (re-)add all the standard Resources (in the resources folder)
sourceSets.main.resources.srcDirs("src/main/resources").includes.addAll(["**/*.*"])
Update for Gradle Version 6.8.1 : if you run gradlew with --warning-mode all there is a deprecated Message:
Copying or archiving duplicate paths with the default duplicates strategy has been deprecated. This is scheduled to be removed in Gradle 7.0.
Solution
add this line:
// from https://docs.gradle.org/6.8.1/userguide/upgrading_version_5.html#implicit_duplicate_strategy_for_copy_or_archive_tasks_has_been_deprecated
// and https://docs.gradle.org/current/userguide/java_plugin.html
// Java Plugin Task processResources(type: Copy)
processResources.duplicatesStrategy = DuplicatesStrategy.INCLUDE // allow duplicates
Thanks, this helped me a lot. I added the short form of it to dependencies:
compile 'com.airhacks:afterburner.fx:1.6.0'
Additionally I added a second line to include the files from the resources folder and not only from /java. I also added **/*.png to include png files because new Image("filename.png") wasn't working anymore.
sourceSets.main.resources.srcDirs("src/main/java").includes.addAll(["**/*.fxml", "**/*.css", "**/*.properties", "**/*.png"])
sourceSets.main.resources.srcDirs("src/main/resources").includes.addAll(["**/*.fxml", "**/*.css", "**/*.properties", "**/*.png"])
I don't know why the above two lines broke the default behavior - seems like I have to add every new file type to the above lines. :/ If anyone has a better solution please tell me.

Gradle: how does one modify a dynamically created task?

I am building an Android Library project using the Android Gradle plugin (version 0.9.2) and it appears to have a bug (reported) in that while a "provided" dependency is correctly handled (not included) in the generated aar artifact, that dependency is incorrectly included in the generated debug test apk file.
It strikes me that a reasonable workaround is to remove the dependency jar file that is added by the :preDexDebugTest task as the last step for that task. But this task is dynamically generated so getting a handle to it is eluding me at the moment, hence the question.
In your app's build.gradle file, add
afterEvaluate {
def preDexDebugTest = tasks['preDexDebugTest']
// Do something with preDexDebugTest ...
}
That way it should be possible to operate on the preDexDebugTest task.

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