Struct PackReader 

pub struct PackReader { /* private fields */ }

Pack reader for extracting objects.

Implementations

impl PackReader

pub fn open(pack_path: &Path, index_path: &Path) -> Result<Self>

Open a pack file.

pub fn from_bytes(pack_data: Vec<u8>, index_data: Vec<u8>) -> Result<Self>

pub fn list_ids(&self) -> Vec<PackObjectId>

List all object ids in this pack.

pub fn list_hashes(&self) -> Vec<ContentHash>

pub fn has_object(&self, id: &PackObjectId) -> bool

pub fn get_object( &self, id: &PackObjectId, ) -> Result<Option<(ObjectType, Vec<u8>)>>

Get an object from the pack.

pub fn get_hashed_object( &self, hash: &ContentHash, ) -> Result<Option<(ObjectType, Vec<u8>)>>

pub fn get_hashed_object_size(&self, hash: &ContentHash) -> Result<Option<u64>>

Read just the type+size header for an object without decompressing its payload. Returns Ok(None) when the object isn’t in this pack.

For non-delta entries this is one varint decode at the indexed offset — much cheaper than get_object. Delta entries fall back to a full read because their resolved size requires chasing the base; in practice deltas are rare in the directory listing hot path so the fallback is acceptable.