use crate::utils::ByteSize;
crate::config_group!({
/// The (soft) maximum size in bytes of the shard cache. Default is 16 GB.
///
/// As a rough calculation, a cache of size X will allow for dedup against data
/// of size 1000 * X. The default would allow a 16 TB repo to be deduped effectively.
///
/// Note the cache is pruned to below this value at the beginning of a session,
/// but during a single session new shards may be added such that this limit is exceeded.
///
/// The default value is 16gb.
///
/// Use the environment variable `HF_XET_SHARD_CACHE_SIZE_LIMIT` to set this value.
ref cache_size_limit : ByteSize = ByteSize::from("16gb");
/// The maximum size of the chunk index table that's stored in memory. After this,
/// no new chunks are loaded for deduplication.
///
/// The default value is 67108864.
///
/// Use the environment variable `HF_XET_SHARD_CHUNK_INDEX_TABLE_MAX_SIZE` to set this value.
ref chunk_index_table_max_size: usize = 64 * 1024 * 1024;
/// Subdirectory name for shard cache within the endpoint cache directory.
///
/// The default value is "shard-cache".
///
/// Use the environment variable `HF_XET_SHARD_CACHE_SUBDIR` to set this value.
ref cache_subdir: String = "shard-cache".to_string();
});