Enum CacheConfig 

pub enum CacheConfig {
    Local,
    Target,
    Global,
    Directory(PathBuf),
}

Cache location options.

Variants

Local

Stores cache in the current working directory.

Target

Stores cache in the project’s target/environment directory (default).

Global

Stores cache in the system’s user cache directory.

Directory(PathBuf)

Stores cache under a user-specified directory. The environment database file is placed inside it, not at this path.

Implementations

impl CacheConfig

pub fn root(&self) -> PathBuf

Returns the root directory for the cache.

Every arm degrades rather than fails: none of these look-ups is under the application’s control, and a cache root that can’t be resolved must cost a recompute, not abort the process. A root that turns out to be unwritable is handled one level down, in Database::open_at.

Trait Implementations

impl Clone for CacheConfig

fn clone(&self) -> CacheConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CacheConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for CacheConfig

fn default() -> CacheConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CacheConfig

fn deserialize<__D>( __deserializer: __D, ) -> Result<CacheConfig, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CacheConfig

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.