Struct Cas 

pub struct Cas { /* private fields */ }

On-disk content-addressed cache.

Implementations

impl Cas

pub fn new(root: impl AsRef<Path>) -> Result<Self>

Create or open a CAS rooted at root.

pub fn put(&self, bytes: &[u8]) -> Result<String>

Compute the SHA-256 of bytes and store. Returns the 64-char hex key. Re-writing the same key is a no-op.

pub fn get(&self, hash: &str) -> Result<Option<Vec<u8>>>

Retrieve the bytes for a hex key. Returns Ok(None) if absent.

pub fn contains(&self, hash: &str) -> bool

True when hash is present.

pub fn remove(&self, hash: &str) -> Result<bool>

Delete the entry for hash. Returns Ok(false) if absent.

pub fn path_for(&self, hash: &str) -> PathBuf

Compute the path where hash is or would be stored.

Trait Implementations

impl Clone for Cas

fn clone(&self) -> Cas

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Cas

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

Formats the value using the given formatter.