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/*
* Copyright 2019 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 androidx.build
import androidx.build.jetpad.LibraryBuildInfoFile
import com.google.gson.Gson
import org.gradle.api.DefaultTask
import org.gradle.api.provider.ListProperty
import org.gradle.api.tasks.Input
import org.gradle.api.tasks.OutputFile
import org.gradle.api.tasks.TaskAction
import java.io.File
import java.util.ArrayList
/**
* Task for a json file of all dependencies for each artifactId
*/
abstract class CreateAggregateLibraryBuildInfoFileTask : DefaultTask() {
init {
group = "Help"
description = "Generates a file containing library build information serialized to json"
}
/** List of each build_info.txt file for each project. */
@get:Input
abstract val libraryBuildInfoFiles: ListProperty<File>
@OutputFile
val outputFile = File(
project.getDistributionDirectory(),
getAndroidxAggregateBuildInfoFilename()
)
private fun getAndroidxAggregateBuildInfoFilename(): String {
return "androidx_aggregate_build_info.txt"
}
private data class AllLibraryBuildInfoFiles(
val Artifacts: ArrayList<LibraryBuildInfoFile>
)
/**
* Reads in file and checks that json is valid
*/
private fun jsonFileIsValid(jsonFile: File, artifactList: MutableList<String>): Boolean {
if (!jsonFile.exists()) {
return false
}
val gson = Gson()
val jsonString: String = jsonFile.readText(Charsets.UTF_8)
val aggregateBuildInfoFile = gson.fromJson(jsonString, AllLibraryBuildInfoFiles::class.java)
aggregateBuildInfoFile.Artifacts.forEach { artifact ->
if (!artifactList.contains("${artifact.groupId}_${artifact.artifactId}")) {
println("Failed to find ${artifact.artifactId} in artifact list!")
return false
}
}
return true
}
/**
* Create the output file to contain the final complete AndroidX project build info graph
* file. Iterate through the list of project-specific build info files, and collects
* all dependencies as a JSON string. Finally, write this complete dependency graph to a text
* file as a json list of every project's build information
*/
@TaskAction
fun createAndroidxAggregateBuildInfoFile() {
// Loop through each file in the list of libraryBuildInfoFiles and collect all build info
// data from each of these $groupId-$artifactId-_build_info.txt files
var output = StringBuilder()
output.append("{ \"Artifacts\": [\n")
var artifactList = mutableListOf<String>()
for (infoFile in libraryBuildInfoFiles.get()) {
if ((infoFile.isFile and (infoFile.name != outputFile.name))
and (infoFile.name.contains("_build_info.txt"))
) {
var fileText: String = infoFile.readText(Charsets.UTF_8)
output.append("$fileText,")
artifactList.add(infoFile.name.replace("_build_info.txt", ""))
}
}
// Remove final ',' from list (so a null object doesn't get added to the end of the list)
output.setLength(output.length - 1)
output.append("]}")
outputFile.writeText(output.toString(), Charsets.UTF_8)
if (!jsonFileIsValid(outputFile, artifactList)) {
throw RuntimeException("JSON written to $outputFile was invalid.")
}
}
}
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