kotlin/workers/src/io/bazel/ruleskotlin/workers/compilers/jvm/actions/JavaMainCompile.kt

/*
 * Copyright 2018 The Bazel Authors. All rights reserved.
 *
 * 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 io.bazel.ruleskotlin.workers.compilers.jvm.actions

import io.bazel.ruleskotlin.workers.BuildAction
import io.bazel.ruleskotlin.workers.Context
import io.bazel.ruleskotlin.workers.Flags
import io.bazel.ruleskotlin.workers.KotlinToolchain
import io.bazel.ruleskotlin.workers.compilers.jvm.Metas
import io.bazel.ruleskotlin.workers.utils.executeAndAwait

/**
 * Simple java compile action that invokes javac directly and simply.
 */
class JavaMainCompile(toolchain: KotlinToolchain) : BuildAction("compile java classes", toolchain) {
    override fun invoke(ctx: Context): Int {
        val javaSources = Metas.JAVA_SOURCES.mustGet(ctx)
        val classpath = checkNotNull(Flags.CLASSPATH[ctx])

        if (!javaSources.isEmpty()) {
            val classesDirectory = Metas.CLASSES_DIRECTORY.mustGet(ctx).toString()

            val args = mutableListOf(toolchain.JAVAC_PATH, "-cp", "$classesDirectory/:$classpath", "-d", classesDirectory).also { it.addAll(javaSources) }
            Metas.JAVAC_RESULT.runAndBind(ctx) { executeAndAwait(30, args) }
        }
        return 0
    }
}