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Adding CompilationDatabase generation (JetBrains#4091)
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build-tools/src/main/kotlin/org/jetbrains/kotlin/CompilationDatabase.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| /* | ||
| * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license | ||
| * that can be found in the LICENSE file. | ||
| */ | ||
|
|
||
| package org.jetbrains.kotlin | ||
|
|
||
| import java.io.File | ||
| import javax.inject.Inject | ||
| import kotlinx.serialization.Serializable | ||
| import kotlinx.serialization.builtins.list | ||
| import kotlinx.serialization.json.Json | ||
| import kotlinx.serialization.json.JsonConfiguration | ||
| import org.gradle.api.GradleException | ||
| import org.gradle.api.Project | ||
| import org.gradle.api.Task | ||
| import org.gradle.api.DefaultTask | ||
| import org.gradle.api.tasks.Input | ||
| import org.gradle.api.tasks.InputFiles | ||
| import org.gradle.api.tasks.OutputFile | ||
| import org.gradle.api.tasks.TaskAction | ||
| import org.jetbrains.kotlin.konan.target.HostManager | ||
|
|
||
| @Serializable | ||
| private data class Entry( | ||
| val directory: String, | ||
| val file: String, | ||
| val arguments: List<String>, | ||
| val output: String | ||
| ) { | ||
| companion object { | ||
| fun create( | ||
| directory: File, | ||
| file: File, | ||
| args: List<String>, | ||
| outputDir: File | ||
| ): Entry { | ||
| return Entry( | ||
| directory.absolutePath, | ||
| file.absolutePath, | ||
| args + listOf(file.absolutePath), | ||
| File(outputDir, file.name + ".o").absolutePath | ||
| ) | ||
| } | ||
|
|
||
| fun writeListTo(file: File, entries: List<Entry>) { | ||
| val json = Json(JsonConfiguration.Stable.copy(prettyPrint = true)) | ||
| file.writeText(json.stringify(Entry.serializer().list, entries)) | ||
| } | ||
|
|
||
| fun readListFrom(file: File): List<Entry> { | ||
| val json = Json(JsonConfiguration.Stable) | ||
| return json.parse(Entry.serializer().list, file.readText()) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| open class GenerateCompilationDatabase @Inject constructor(@Input val target: String, | ||
| @Input val srcRoot: File, | ||
| @Input val files: Iterable<File>, | ||
| @Input val executable: String, | ||
| @Input val compilerFlags: List<String>, | ||
| @Input val outputDir: File | ||
| ): DefaultTask() { | ||
| @OutputFile | ||
| var outputFile = File(outputDir, "compile_commands.json") | ||
|
|
||
| @TaskAction | ||
| fun run() { | ||
| val plugin = project.convention.getPlugin(ExecClang::class.java) | ||
| val executable = plugin.resolveExecutable(executable) | ||
| val args = listOf(executable) + compilerFlags + plugin.konanArgs(target) | ||
| val entries: List<Entry> = files.map { Entry.create(srcRoot, it, args, outputDir) } | ||
| Entry.writeListTo(outputFile, entries) | ||
| } | ||
| } | ||
|
|
||
| open class MergeCompilationDatabases @Inject constructor(): DefaultTask() { | ||
| @InputFiles | ||
| val inputFiles = mutableListOf<File>() | ||
|
|
||
| @OutputFile | ||
| var outputFile = File(project.buildDir, "compile_commands.json") | ||
|
|
||
| @TaskAction | ||
| fun run() { | ||
| val entries = mutableListOf<Entry>() | ||
| for (file in inputFiles) { | ||
| entries.addAll(Entry.readListFrom(file)) | ||
| } | ||
| Entry.writeListTo(outputFile, entries) | ||
| } | ||
| } | ||
|
|
||
| fun mergeCompilationDatabases(project: Project, name: String, paths: List<String>): Task { | ||
| val subtasks: List<MergeCompilationDatabases> = paths.map { | ||
| val task = project.tasks.getByPath(it) | ||
| if (task !is MergeCompilationDatabases) { | ||
| throw GradleException("Unknown task type for compdb merging: $task") | ||
| } | ||
| task | ||
| } | ||
| return project.tasks.create(name, MergeCompilationDatabases::class.java) { task -> | ||
| task.dependsOn(subtasks) | ||
| task.inputFiles.addAll(subtasks.map { it.outputFile }) | ||
| } | ||
| } | ||
|
|
||
| fun createCompilationDatabaseFromCompileToBitcodeTasks(project: Project, name: String): Task { | ||
| val compileTasks = project.tasks.withType(CompileToBitcode::class.java).toList() | ||
| val compdbTasks = compileTasks.mapNotNull { task -> | ||
| // TODO: consider generating databases for more than just current host target. | ||
| if (task.target != HostManager.hostName) { | ||
| null | ||
| } else { | ||
| project.tasks.create("${task.name}_CompilationDatabase", | ||
| GenerateCompilationDatabase::class.java, | ||
| task.target, | ||
| task.srcRoot, | ||
| task.inputFiles, | ||
| task.executable, | ||
| task.compilerFlags, | ||
| task.objDir) | ||
| } | ||
| } | ||
| return project.tasks.create(name, MergeCompilationDatabases::class.java) { task -> | ||
| task.dependsOn(compdbTasks) | ||
| task.inputFiles.addAll(compdbTasks.map { it.outputFile }) | ||
| } | ||
| } |
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