android - 从 Gradle 构建中排除临时 Realm 文件

Question

Realm 提供了一个名为“Realm Studio”的数据库查看器，允许用户浏览其数据库的内容。当应用程序用于查看数据库时，它会在数据库的目录中创建几个“临时”文件，即:

• .realm.lock 文件。
• .realm.note 文件。
• .realm.management 目录包含:
  • access_control.control.mx 文件。
  • access_control.new_commit.cv 文件。
  • access_control.pick_writer.cv 文件。
  • access_control.write.mx 文件。

在 Android 的上下文中，预先存在的 Realm 数据库有时会随应用程序一起提供，方法是将数据库放在 /assets 目录中。这样，当使用Realm Studio查看这个数据库时，就会在/assets中生成上述文件。由于未知原因，这会导致 Gradle 在 :app:generateDebugAssets 任务之后无限期挂起，显然是在 :app:mergeDebugAssets 任务中。

因此，我想找到一种从构建中排除这些文件的方法。我尝试了几种方法，例如:

applicationVariants.all { variant ->
    if (variant.buildType.name == 'debug') {
        variant.mergeAssets.doLast {
            delete(fileTree(dir: variant.mergeAssets.outputDir, includes: ['**/*.cv', '**/*.mx', '**/*.lock', '**/*.note']))
        }
    }
}

和其他方法，例如:

sourceSets.main.assets.exclude 'appData.realm.management'
sourceSets.main.assets.exclude 'appData.realm.management/access_control.control.mx'
sourceSets.main.assets.exclude 'appData.realm.management/access_control.new_commit.cv'
sourceSets.main.assets.exclude 'appData.realm.management/access_control.pick_writer.cv'
sourceSets.main.assets.exclude 'appData.realm.management/access_control.write.mx'
sourceSets.main.assets.exclude 'appData.realm.lock'
sourceSets.main.assets.exclude 'appData.realm.note'

没用。

如何指示 Gradle 在运行构建时排除这些文件？

编辑 ./gradlew -d app:mergeDebugAssets 重复输出的小 fragment :

[org.gradle.cache.internal.DefaultFileLockManager] Waiting to acquire shared lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Lock acquired on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Releasing lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Waiting to acquire shared lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Lock acquired on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Releasing lock on daemon addresses registry.
[org.gradle.process.internal.health.memory.MemoryManager] Emitting OS memory status event {Total: 8589934592, Free: 2572066816}
[org.gradle.launcher.daemon.server.health.LowMemoryDaemonExpirationStrategy] Received memory status update: {Total: 8589934592, Free: 2572066816}
[org.gradle.process.internal.health.memory.MemoryManager] Emitting JVM memory status event {Maximum: 1431830528, Committed: 308281344}
[org.gradle.process.internal.health.memory.MemoryManager] Emitting OS memory status event {Total: 8589934592, Free: 2567909376}
[org.gradle.launcher.daemon.server.health.LowMemoryDaemonExpirationStrategy] Received memory status update: {Total: 8589934592, Free: 2567909376}
[org.gradle.process.internal.health.memory.MemoryManager] Emitting JVM memory status event {Maximum: 1431830528, Committed: 308281344}
[org.gradle.launcher.daemon.server.Daemon] DaemonExpirationPeriodicCheck running
[org.gradle.cache.internal.DefaultFileLockManager] Waiting to acquire shared lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Lock acquired on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Releasing lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Waiting to acquire shared lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Lock acquired on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Releasing lock on daemon addresses registry.
[org.gradle.process.internal.health.memory.MemoryManager] Emitting OS memory status event {Total: 8589934592, Free: 2564087808}
[org.gradle.launcher.daemon.server.health.LowMemoryDaemonExpirationStrategy] Received memory status update: {Total: 8589934592, Free: 2564087808}
[org.gradle.process.internal.health.memory.MemoryManager] Emitting JVM memory status event {Maximum: 1431830528, Committed: 308281344}
[org.gradle.process.internal.health.memory.MemoryManager] Emitting OS memory status event {Total: 8589934592, Free: 2560860160}
[org.gradle.launcher.daemon.server.health.LowMemoryDaemonExpirationStrategy] Received memory status update: {Total: 8589934592, Free: 2560860160}
[org.gradle.process.internal.health.memory.MemoryManager] Emitting JVM memory status event {Maximum: 1431830528, Committed: 308281344}
[org.gradle.launcher.daemon.server.Daemon] DaemonExpirationPeriodicCheck running
[org.gradle.cache.internal.DefaultFileLockManager] Waiting to acquire shared lock on daemon addresses registry.
[org.gradle.cache.internal.DefaultFileLockManager] Lock acquired on daemon addresses registry.
...

Answer 1

我认为问题在于您没有删除.realm.management 目录。

android {

    ...

    applicationVariants.all { variant ->
        if (variant.buildType.name == 'debug') {
            variant.mergeAssets.doLast {
                delete(fileTree(dir: variant.mergeAssets.outputDir, includes: ['**/.realm.management', '**/*.lock', '**/*.note']))
            }
        }
    }
}

Assets 目录内容:

apk中assets目录内容: