Struct FileFingerprint 

pub struct FileFingerprint {
    pub size: u64,
    pub mtime_secs: i64,
    pub chunk_count: usize,
    pub content_hash: Option<String>,
}

Cheap fingerprint for change detection.

(size, mtime) is fast to compute and covers almost all real edits; content_hash (BLAKE3 of the file bytes) is the fallback used by incremental update when mtime drifts but the bytes haven’t changed (touch, git checkout of an identical version, no-op formatter runs).

Fields

size: u64

File size in bytes.

mtime_secs: i64

Modification time as Unix epoch seconds.

chunk_count: usize

Number of chunks this file produced.

content_hash: Option<String>

BLAKE3 hex digest of the file bytes. None for fingerprints loaded from a pre-content-hash manifest; new fingerprints always populate it.

Implementations

impl FileFingerprint

pub fn from_path(path: &Path, chunk_count: usize) -> Result<Self>

Compute the fingerprint for a path on disk. chunk_count is provided by the caller after chunking.

Trait Implementations

impl Clone for FileFingerprint

fn clone(&self) -> FileFingerprint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileFingerprint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FileFingerprint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for FileFingerprint

fn eq(&self, other: &FileFingerprint) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FileFingerprint

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for FileFingerprint

impl StructuralPartialEq for FileFingerprint