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Aar2JarPlugin.kt
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Aar2JarPlugin.kt
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package io.sentry.android.gradle.internal
import java.io.FileOutputStream
import java.util.zip.ZipFile
import org.gradle.api.Plugin
import org.gradle.api.Project
import org.gradle.api.artifacts.Configuration
import org.gradle.api.artifacts.transform.InputArtifact
import org.gradle.api.artifacts.transform.TransformAction
import org.gradle.api.artifacts.transform.TransformOutputs
import org.gradle.api.artifacts.transform.TransformParameters
import org.gradle.api.artifacts.type.ArtifactTypeDefinition
import org.gradle.api.attributes.Attribute
import org.gradle.api.file.FileSystemLocation
import org.gradle.api.plugins.JavaPluginExtension
import org.gradle.api.provider.Provider
import org.gradle.api.tasks.PathSensitive
import org.gradle.api.tasks.PathSensitivity
import org.gradle.api.tasks.SourceSet
import org.gradle.api.tasks.SourceSetContainer
import org.gradle.kotlin.dsl.get
import org.gradle.kotlin.dsl.getByType
import org.gradle.kotlin.dsl.the
import org.gradle.plugins.ide.idea.model.IdeaModel
/**
* A port of https://github.com/stepango/aar2jar, which adds support for 2 things:
* - runtimeOnlyAar configuration
* - Gradle 8.0+ registerTransform API
*/
class Aar2JarPlugin : Plugin<Project> {
override fun apply(project: Project) {
val compileOnlyAar = project.configurations.register("compileOnlyAar")
val runtimeOnlyAar = project.configurations.register("runtimeOnlyAar")
val implementationAar = project.configurations.register("implementationAar")
// Assume all modules have test configuration
val testCompileOnlyAar = project.configurations.register("testCompileOnlyAar")
val testRuntimeOnlyAar = project.configurations.register("testRuntimeOnlyAar")
val testImplementationAar = project.configurations.register("testImplementationAar")
project.pluginManager.withPlugin("idea") {
val scopes = project.extensions
.getByType<IdeaModel>()
.module
.scopes
scopes["TEST"]
?.get("plus")
?.apply {
add(testImplementationAar.get())
add(testCompileOnlyAar.get())
add(testRuntimeOnlyAar.get())
}
scopes.forEach {
it.value["plus"]?.apply {
add(implementationAar.get())
add(compileOnlyAar.get())
add(runtimeOnlyAar.get())
}
}
}
project.dependencies.registerTransform(AarToJarTransform::class.java) {
from.attribute(ARTIFACT_ATTR, "aar")
to.attribute(ARTIFACT_ATTR, ArtifactTypeDefinition.JAR_TYPE)
}
compileOnlyAar.configure {
baseConfiguration(project, "main") {
compileClasspath += this@configure
}
}
runtimeOnlyAar.configure {
baseConfiguration(project, "main") {
runtimeClasspath += this@configure
}
}
implementationAar.configure {
baseConfiguration(project, "main") {
compileClasspath += this@configure
runtimeClasspath += this@configure
}
}
testCompileOnlyAar.configure {
baseConfiguration(project, "test") {
compileClasspath += this@configure
}
}
testRuntimeOnlyAar.configure {
baseConfiguration(project, "test") {
runtimeClasspath += this@configure
}
}
testImplementationAar.configure {
baseConfiguration(project, "test") {
compileClasspath += this@configure
runtimeClasspath += this@configure
}
}
}
companion object {
internal val ARTIFACT_ATTR = Attribute.of("artifactType", String::class.java)
}
}
fun Configuration.baseConfiguration(project: Project, name: String, f: SourceSet.() -> Unit) {
isTransitive = false
attributes {
attribute(Aar2JarPlugin.ARTIFACT_ATTR, ArtifactTypeDefinition.JAR_TYPE)
}
project.pluginManager.withPlugin("java") {
val sourceSets = project.the<JavaPluginExtension>().sourceSets
sourceSets.withName(name, f)
}
}
fun SourceSetContainer.withName(name: String, f: SourceSet.() -> Unit) {
this[name]?.apply { f(this) } ?: whenObjectAdded { if (this.name == name) f(this) }
}
abstract class AarToJarTransform : TransformAction<TransformParameters.None> {
@get:InputArtifact
@get:PathSensitive(PathSensitivity.NAME_ONLY)
abstract val input: Provider<FileSystemLocation>
override fun transform(outputs: TransformOutputs) {
val inputFile = input.get().asFile
val outputFile = outputs.file(inputFile.name.replace(".aar", ".jar"))
ZipFile(inputFile).use { zipFile ->
zipFile.entries()
.toList()
.first { it.name == "classes.jar" }
.let(zipFile::getInputStream)
.use { input ->
FileOutputStream(outputFile).use { output ->
input.copyTo(output)
}
}
}
}
}