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// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
namespace base {
class FilePath;
class TimeDelta;
} // namespace base
namespace apk_cache {
extern const char kAttrJson[];
extern const char kApkExtension[];
extern const char kObbExtension[];
extern const char kMainObbPrefix[];
extern const char kPatchObbPrefix[];
extern const base::TimeDelta kValidityPeriod;
// Performs cleaning of the APK cache directory. The path to the cache
// directory must be provided as |cache_path| parameter.
// It deletes:
// - all the files in the cache root;
// - all the package directories that:
// 1. have not been used last |kValidityPeriod|;
// 2. contain unexpected files. Any file except APK, main and patch OBB
// and JSON with package attributes is considered unexpected;
// 3. contain directories;
// 4. contain no or more then one APK file, no attributes JSON file,
// more than one main OBB file, more than one patch OBB file.
// Returns true if all the intended files and directories were successfully
// deleted.
bool Clean(const base::FilePath& cache_path);
} // namespace apk_cache