Struct HashCache 

pub struct HashCache { /* private fields */ }

A size+mtime keyed cache of working-file content hashes.

Implementations

impl HashCache

pub fn load(repo: &Repository) -> HashCache

Load the cache, tolerating a missing or legacy/placeholder file (returns an empty cache rather than failing).

pub fn save(&self, repo: &Repository) -> Result<()>

Persist the cache to .cadvm/index.json.

pub fn hash(&mut self, repo: &Repository, rel: &Path) -> Result<ObjectId>

Content hash of a working file, reusing the cache when size+mtime match and otherwise stream-hashing the file and updating the cache.

pub fn record( &mut self, repo: &Repository, rel: &Path, hash: ObjectId, ) -> Result<()>

Record an already-known hash for a file (stats it for size+mtime). Used after a snapshot so the next status is a cache hit.

pub fn retain(&mut self, keep: &BTreeSet<PathBuf>)

Drop entries for paths no longer present (keeps the file tidy).

Trait Implementations

impl Clone for HashCache

fn clone(&self) -> HashCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HashCache

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

Formats the value using the given formatter.

impl Default for HashCache

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HashCache

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HashCache

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

where __S: Serializer,

Serialize this value into the given Serde serializer.