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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.databinding.tool
import org.gradle.api.Plugin
import org.gradle.api.Project
import com.android.build.gradle.AppExtension
import com.android.build.gradle.internal.api.ApplicationVariantImpl
import com.android.build.gradle.internal.variant.ApplicationVariantData
import java.io.File
import org.gradle.api.file.FileCollection
import android.databinding.tool.writer.JavaFileWriter
import android.databinding.tool.util.Log
import org.gradle.api.Action
import com.android.build.gradle.BaseExtension
import com.android.build.gradle.LibraryExtension
import com.android.build.gradle.api.LibraryVariant
import com.android.build.gradle.api.ApplicationVariant
import com.android.build.gradle.internal.variant.BaseVariantData
import com.android.build.gradle.internal.variant.LibraryVariantData
import com.android.build.gradle.internal.api.LibraryVariantImpl
import com.android.build.gradle.api.TestVariant
import com.android.build.gradle.internal.variant.TestVariantData
import com.android.build.gradle.internal.api.TestVariantImpl
class DataBinderPlugin : Plugin<Project> {
inner class GradleFileWriter(var outputBase: String) : JavaFileWriter() {
override fun writeToFile(canonicalName: String, contents: String) {
val f = File("$outputBase/${canonicalName.replaceAll("\\.", "/")}.java")
log("Asked to write to ${canonicalName}. outputting to:${f.getAbsolutePath()}")
f.getParentFile().mkdirs()
f.writeText(contents, "utf-8")
}
}
override fun apply(project: Project?) {
if (project == null) return
project.afterEvaluate {
createXmlProcessor(project)
}
}
fun log(s: String) {
System.out.println("[qwqw data binding]: $s")
}
fun createXmlProcessor(p: Project) {
val androidExt = p.getExtensions().getByName("android")
if (androidExt !is BaseExtension) {
return
}
log("project build dir:${p.getBuildDir()}")
// TODO this will differ per flavor
if (androidExt is AppExtension) {
createXmlProcessorForApp(p, androidExt)
} else if (androidExt is LibraryExtension) {
createXmlProcessorForLibrary(p, androidExt)
} else {
throw RuntimeException("cannot understand android extension. What is it? ${androidExt}")
}
}
fun createXmlProcessorForLibrary(project : Project, lib : LibraryExtension) {
val sdkDir = lib.getSdkDirectory()
lib.getTestVariants().forEach { variant ->
log("test variant $variant. dir name ${variant.getDirName()}")
val variantData = getVariantData(variant)
attachXmlProcessor(project, variantData, sdkDir, false)//tests extend apk variant
}
lib.getLibraryVariants().forEach { variant ->
log("lib variant $variant . dir name ${variant.getDirName()}")
val variantData = getVariantData(variant)
attachXmlProcessor(project, variantData, sdkDir, true)
}
}
fun getVariantData(appVariant : LibraryVariant) : LibraryVariantData {
val clazz = javaClass<LibraryVariantImpl>()
val field = clazz.getDeclaredField("variantData")
field.setAccessible(true)
return field.get(appVariant) as LibraryVariantData
}
fun getVariantData(testVariant : TestVariant) : TestVariantData {
val clazz = javaClass<TestVariantImpl>()
val field = clazz.getDeclaredField("variantData")
field.setAccessible(true)
return field.get(testVariant) as TestVariantData
}
fun getVariantData(appVariant : ApplicationVariant) : ApplicationVariantData {
val clazz = javaClass<ApplicationVariantImpl>()
val field = clazz.getDeclaredField("variantData")
field.setAccessible(true)
return field.get(appVariant) as ApplicationVariantData
}
fun createXmlProcessorForApp(project : Project, appExt: AppExtension) {
val sdkDir = appExt.getSdkDirectory()
appExt.getTestVariants().forEach { testVariant ->
val variantData = getVariantData(testVariant)
attachXmlProcessor(project, variantData, sdkDir, false)
}
appExt.getApplicationVariants().forEach { appVariant ->
val variantData = getVariantData(appVariant)
attachXmlProcessor(project, variantData, sdkDir, false)
}
}
fun attachXmlProcessor(project : Project, variantData : BaseVariantData<*>, sdkDir : File,
isLibrary : Boolean) {
val configuration = variantData.getVariantConfiguration()
val minSdkVersion = configuration.getMinSdkVersion()
val generateRTask = variantData.generateRClassTask
val packageName = generateRTask.getPackageForR()
log("r task name $generateRTask . text symbols output dir: ${generateRTask.getTextSymbolOutputDir()}")
val fullName = configuration.getFullName()
val sources = variantData.getJavaSources()
sources.forEach({
if (it is FileCollection) {
it.forEach {
log("sources for ${variantData} ${it}}")
}
} else {
log("sources for ${variantData}: ${it}");
}
})
val resourceFolders = arrayListOf(variantData.mergeResourcesTask.getOutputDir())
log("MERGE RES OUTPUT ${variantData.mergeResourcesTask.getOutputDir()}")
val codeGenTargetFolder = generateRTask.getSourceOutputDir()
// TODO unnecessary?
// TODO attach to test module as well!
variantData.addJavaSourceFoldersToModel(codeGenTargetFolder)
val writerOutBase = codeGenTargetFolder.getAbsolutePath();
val fileWriter = GradleFileWriter(writerOutBase)
val xmlProcessor = LayoutXmlProcessor(packageName, resourceFolders, fileWriter,
minSdkVersion.getApiLevel(), isLibrary)
val processResTask = generateRTask
val xmlOutDir = "${project.getBuildDir()}/layout-info/${configuration.getDirName()}";
log("xml output for ${variantData} is ${xmlOutDir}")
val dataBindingTaskName = "dataBinding${processResTask.getName().capitalize()}"
log("created task $dataBindingTaskName")
project.getTasks().create(dataBindingTaskName,
javaClass<DataBindingProcessLayoutsTask>(),
object : Action<DataBindingProcessLayoutsTask> {
override fun execute(task: DataBindingProcessLayoutsTask) {
task.xmlProcessor = xmlProcessor
task.sdkDir = sdkDir
Log.d { "TASK adding dependency on ${task} for ${processResTask}" }
processResTask.dependsOn(task)
processResTask.getDependsOn().filterNot { it == task }.forEach {
Log.d { "adding dependency on ${it} for ${task}" }
task.dependsOn(it)
}
processResTask.doLast {
task.writeFiles(File(xmlOutDir))
}
}
});
if (isLibrary) {
val packageJarTaskName = "package${fullName.capitalize()}Jar"
val packageTask = project.getTasks().findByName(packageJarTaskName)
if (packageTask !is org.gradle.api.tasks.bundling.Jar) {
throw RuntimeException("cannot find package task in $project $variantData project $packageJarTaskName")
}
val excludePattern = "android/databinding/layouts/*.*"
val appPkgAsClass = packageName.replace('.', '/')
packageTask.exclude(excludePattern)
packageTask.exclude("$appPkgAsClass/databinding/*")
packageTask.exclude("$appPkgAsClass/BR.*")
packageTask.exclude(xmlProcessor.getInfoClassFullName().replace('.', '/') + ".class")
log("excludes ${packageTask.getExcludes()}")
}
}
}
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