Unable to generate tar with gradle - cache.properties locked

Help/Discuss
#1

Unable to generate tar with gradle because of locked file. This is due to the fact the .gradle directory is created in the same directory as project dir. I tried setting buildDir to outside of the project dir but .gradle directory and subsequent cache.properties are created which causes the lock

org.gradle.api.UncheckedIOException: Failed to capture snapshot of input files for task ‘buildTar’ during up-to-date check. See stacktrace for details.
at org.gradle.api.internal.changedetection.rules.TaskUpToDateState.(TaskUpToDateState.java:59)
at org.gradle.api.internal.changedetection.changes.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.getStates(DefaultTaskArtifactStateRepository.java:126)
at org.gradle.api.internal.changedetection.changes.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.isUpToDate(DefaultTaskArtifactStateRepository.java:69)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:306)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
Caused by: org.gradle.api.UncheckedIOException: Failed to create MD5 hash for file C:…gradle\2.3\taskArtifacts\cache.properties.lock.
at org.gradle.internal.hash.HashUtil.createHash(HashUtil.java:37)
at org.gradle.api.internal.hash.DefaultHasher.hash(DefaultHasher.java:24)
at org.gradle.api.internal.changedetection.state.CachingFileSnapshotter.snapshot(CachingFileSnapshotter.java:46)
at org.gradle.api.internal.changedetection.state.CachingFileSnapshotter.snapshot(CachingFileSnapshotter.java:27)
at org.gradle.api.internal.changedetection.state.DefaultFileCollectionSnapshotter$1.run(DefaultFileCollectionSnapshotter.java:56)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:192)
at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:175)
at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:106)
at org.gradle.cache.internal.DefaultCacheFactory$ReferenceTrackingCache.useCache(DefaultCacheFactory.java:187)
at org.gradle.api.internal.changedetection.state.DefaultTaskArtifactStateCacheAccess.useCache(DefaultTaskArtifactStateCacheAccess.java:60)
at org.gradle.api.internal.changedetection.state.DefaultFileCollectionSnapshotter.snapshot(DefaultFileCollectionSnapshotter.java:52)
at org.gradle.api.internal.changedetection.rules.TaskUpToDateState.(TaskUpToDateState.java:55)
… 13 more
Caused by: java.io.IOException: The process cannot access the file because another process has locked a portion of the file.
at org.gradle.internal.hash.HashUtil.createHash(HashUtil.java:50)
at org.gradle.internal.hash.HashUtil.createHash(HashUtil.java:34)
… 25 more

Thank you.

#2

What is the purpose of the tar file you’re trying to produce? Wouldn’t it make more sense to just exclude the “.gradle” directory from the tar file?

#3

David, thank you for the reply. Yes excluding the .gradle dir is alternative that worked. I am still lookng for a way to have .gradle directory generated to location outside of the project dir. I was hoping that setting the buildDir to another location would create the .gradle directory there but it did not. But then again I am not sure if that is one of the intent of the buildDir.

Thank you.

#4

This can be done with the --project-cache-dir command line argument.

#5

Mark, thank you. That works.