Gradle refuse to start process command 'cmd'

Question

I'm encountering issue with a custom gradle task. Seems like gradle refuse to start a command line process.

Here is the custom task:

task generateAllure(type: Exec) {
    workingDir "$projectDir/allure/bin"
    if (System.getProperty('os.name').toLowerCase(Locale.ROOT).contains('windows')) {
        commandLine 'cmd', '/c', 'allure.bat', 'generate', '-c', '../../integration/build/allure-results'
    } else {
        commandLine 'bash', '-c', 'allure', 'generate', '-c',"$projectDir/integration/build/allure-results"
    }
}

tasks.withType(Test)*.finalizedBy generateAllure

With the appropriate dependency:

compile group: 'ru.yandex.qatools.allure', name: 'allure-commandline', version: '1.4.18'

After using gradle clean test execution fails on:

2: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':generateAllure'.
> A problem occurred starting process 'command 'cmd''

Any thoughts about that? Thanks!

UPD: This is the stacktrace i'm getting after performing gradle -S clean test:

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':generateAllure'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:110)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:77)
        at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
        at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
        at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
        at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
        at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
        at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
        at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.run(EventFiringTaskExecuter.java:51)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$ExecuteTaskAction.execute(DefaultTaskExecutionGraph.java:262)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$ExecuteTaskAction.execute(DefaultTaskExecutionGraph.java:246)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:136)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:130)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.execute(DefaultTaskPlanExecutor.java:201)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.executeWithTask(DefaultTaskPlanExecutor.java:192)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:130)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.gradle.process.internal.ExecException: A problem occurred starting process 'command 'cmd''
        at org.gradle.process.internal.DefaultExecHandle.execExceptionFor(DefaultExecHandle.java:231)
        at org.gradle.process.internal.DefaultExecHandle.setEndStateInfo(DefaultExecHandle.java:209)
        at org.gradle.process.internal.DefaultExecHandle.failed(DefaultExecHandle.java:355)
        at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:85)
        at org.gradle.internal.operations.CurrentBuildOperationPreservingRunnable.run(CurrentBuildOperationPreservingRunnable.java:42)
        ... 6 more
Caused by: net.rubygrapefruit.platform.NativeException: Could not start 'cmd'
        at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:27)
        at net.rubygrapefruit.platform.internal.WindowsProcessLauncher.start(WindowsProcessLauncher.java:22)
        at net.rubygrapefruit.platform.internal.WrapperProcessLauncher.start(WrapperProcessLauncher.java:36)
        at org.gradle.process.internal.ExecHandleRunner.run(ExecHandleRunner.java:67)
        ... 7 more
Caused by: java.io.IOException: Cannot run program "cmd" (in directory "D:\Git\rozetka-test-automation\allure\bin"): CreateProcess error=267, The directory name is invalid
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
        at net.rubygrapefruit.platform.internal.DefaultProcessLauncher.start(DefaultProcessLauncher.java:25)
        ... 10 more
Caused by: java.io.IOException: CreateProcess error=267, The directory name is invalid
        at java.lang.ProcessImpl.create(Native Method)
        at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
        at java.lang.ProcessImpl.start(ProcessImpl.java:137)
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
        ... 11 more

Answer 1

Now with the stacktrace the problem is pretty much clear. In the task you defined

task generateAllure(type: Exec) {
    workingDir "$projectDir/allure/bin"
    if (System.getProperty('os.name').toLowerCase(Locale.ROOT).contains('windows')) {
        commandLine 'cmd', '/c', 'allure.bat', 'generate', '-c', '../../integration/build/allure-results'
    } else {
        commandLine 'bash', '-c', 'allure', 'generate', '-c',"$projectDir/integration/build/allure-results"
    }
}

tasks.withType(Test)*.finalizedBy generateAllure

You've set the working directory to "$projectDir/allure/bin" this value get interpolated into "D:\Git\rozetka-test-automation\allure\bin" which apparently doesn't exist on your system

Keep in mind that "doesn't exist" might also mean "doesn't exist yet", it depends on what you're doing in the rest of your build.

Under the assumption the allure\bin is not created by the build - something is wrong with your path.