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/*
* Copyright (C) 2016 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 com.android.build.gradle.integration.common.fixture
import com.android.build.gradle.integration.common.truth.TaskStateList
import com.google.common.base.Preconditions
import com.google.common.base.Throwables
import com.google.common.collect.ImmutableList
import org.gradle.api.ProjectConfigurationException
import org.gradle.api.tasks.TaskExecutionException
import org.gradle.internal.serialize.ContextualPlaceholderException
import org.gradle.internal.serialize.PlaceholderException
import org.gradle.tooling.BuildException
import org.gradle.tooling.GradleConnectionException
import org.gradle.tooling.events.ProgressEvent
import java.io.File
import java.util.Scanner
/**
* The result from running a build.
* See [GradleTestProject.executor] and [GradleTaskExecutor].
*
* @property exception The exception from the build, null if the build succeeded.
*/
class GradleBuildResult(
private val stdoutFile: File,
private val stderrFile: File,
private val taskEvents: ImmutableList<ProgressEvent>,
val exception: GradleConnectionException?,
) {
/**
* Returns a new [Scanner] for the stderr messages. This instance MUST be closed when done.
*/
val stderr
get() = Scanner(stderrFile)
/**
* Returns a new [Scanner] for the stdout messages. This instance MUST be closed when done.
*/
val stdout
get() = Scanner(stdoutFile)
/**
* Most tests don't examine the state of the build's tasks and [TaskStateList] is relatively
* expensive to initialize, so this is done lazily.
*/
private val taskStateList: TaskStateList by lazy {
TaskStateList(taskEvents, this.stdout)
}
/**
* Returns the short (single-line) message that Gradle would print out in the console, without
* `--stacktrace`. If the build succeeded, returns null.
*/
val failureMessage: String?
get() = exception?.let {
val causalChain = Throwables.getCausalChain(exception)
// Try the common scenarios: configuration or task failure.
for (throwable in causalChain) {
// Because of different class loaders involved, we are forced to do stringly-typed
// programming.
val throwableType = throwable.javaClass.name
if (throwableType == ProjectConfigurationException::class.java.name) {
return throwable.cause?.message ?: throw AssertionError(
"Exception had unexpected structure.",
exception
)
} else if (isPlaceholderEx(throwableType)) {
if (throwable.toString().startsWith(TaskExecutionException::class.java.name)) {
var cause = throwable
// there can be several levels of PlaceholderException when dealing with
// Worker API failures.
while (isPlaceholderEx(throwableType) && cause.cause != null) {
cause = cause.cause
}
return cause.message
}
}
}
// Look for any BuildException, for other cases.
for (throwable in causalChain) {
val throwableType = throwable.javaClass.name
if (throwableType == BuildException::class.java.name) {
return throwable.cause?.message ?: throw AssertionError(
"Exception had unexpected structure.",
exception
)
}
}
throw AssertionError("Failed to determine the failure message.", exception)
}
val tasks: List<String>
get() = taskStateList.tasks
val taskStates: Map<String, TaskStateList.ExecutionState>
get() = taskStateList.taskStates
val upToDateTasks: Set<String>
get() = taskStateList.upToDateTasks
val fromCacheTasks: Set<String>
get() = taskStateList.fromCacheTasks
val didWorkTasks: Set<String>
get() = taskStateList.didWorkTasks
val skippedTasks: Set<String>
get() = taskStateList.skippedTasks
val failedTasks: Set<String>
get() = taskStateList.failedTasks
/**
* Returns the task info given the task name, or null if the task is not found (if it is not in
* the task execution plan).
*
* @see getTask
*/
fun findTask(name: String): TaskStateList.TaskInfo? {
return taskStateList.findTask(name)
}
/**
* Returns the task info given the task name. The task must exist (it must be in the task
* execution plan).
*
* @see findTask
*/
fun getTask(name: String): TaskStateList.TaskInfo {
Preconditions.checkArgument(name.startsWith(":"), "Task name must start with :")
return taskStateList.getTask(name)
}
private fun isPlaceholderEx(throwableType: String) =
throwableType == PlaceholderException::class.java.name
|| throwableType == ContextualPlaceholderException::class.java.name
}
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