| /* |
| * 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.kotlin.builder.mode.jvm.utils |
| |
| import java.io.ByteArrayInputStream |
| import java.io.ByteArrayOutputStream |
| import java.io.File |
| import java.io.PrintStream |
| import java.nio.file.Paths |
| |
| |
| /** |
| * Utility class to perform common pre-processing on the compiler output before it is passed onto a delegate |
| * PrintStream. |
| */ |
| // The kotlin compiler produces absolute file paths but the intellij plugin expects workspace root relative paths to |
| // render errors. |
| abstract class KotlinCompilerOutputProcessor private constructor(internal val delegate: PrintStream) { |
| private val byteArrayOutputStream = ByteArrayOutputStream() |
| // Get the absolute path to ensure the sandbox root is resolved. |
| private val executionRoot = Paths.get("").toAbsolutePath().toString() + File.separator |
| |
| val collector: PrintStream = PrintStream(byteArrayOutputStream) |
| |
| class ForKotlinC(delegate: PrintStream) : KotlinCompilerOutputProcessor(delegate) { |
| override fun processLine(line: String): Boolean { |
| delegate.println(trimExecutionRootPrefix(line)) |
| return true |
| } |
| } |
| |
| internal fun trimExecutionRootPrefix(toPrint: String): String { |
| // trim off the workspace component |
| return if (toPrint.startsWith(executionRoot)) { |
| toPrint.replaceFirst(executionRoot.toRegex(), "") |
| } else toPrint |
| } |
| |
| protected abstract fun processLine(line: String): Boolean |
| |
| fun process() { |
| try { |
| for (s in ByteArrayInputStream(byteArrayOutputStream.toByteArray()).bufferedReader().lineSequence()) { |
| val shouldContinue = processLine(s) |
| if (!shouldContinue) { |
| break |
| } |
| } |
| } finally { |
| delegate.flush() |
| } |
| } |
| } |