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/// The error type returned by the [`Find`](crate::Find) and [`Header`](crate::Header) traits.
pub type Error = Box<dyn std::error::Error + Send + Sync + 'static>;
///
pub mod existing {
use gix_hash::ObjectId;
/// The error returned by the [`find(…)`][crate::FindExt::find()] trait methods.
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
pub enum Error {
#[error(transparent)]
Find(crate::find::Error),
#[error("An object with id {} could not be found", .oid)]
NotFound { oid: ObjectId },
}
}
///
pub mod existing_object {
use gix_hash::ObjectId;
/// The error returned by the various [`find_*()`][crate::FindExt::find_commit()] trait methods.
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
pub enum Error {
#[error(transparent)]
Find(crate::find::Error),
#[error(transparent)]
Decode(gix_object::decode::Error),
#[error("An object with id {oid} could not be found")]
NotFound { oid: ObjectId },
#[error("Expected object of kind {expected}")]
ObjectKind { expected: gix_object::Kind },
}
}
///
pub mod existing_iter {
use gix_hash::ObjectId;
/// The error returned by the various [`find_*_iter()`][crate::FindExt::find_commit_iter()] trait methods.
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
pub enum Error {
#[error(transparent)]
Find(crate::find::Error),
#[error("An object with id {oid} could not be found")]
NotFound { oid: ObjectId },
#[error("Expected object of kind {expected}")]
ObjectKind { expected: gix_object::Kind },
}
}
/// An object header informing about object properties, without it being fully decoded in the process.
#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum Header {
/// The object was not packed, but is currently located in the loose object portion of the database.
///
/// As packs are searched first, this means that in this very moment, the object whose header we retrieved is unique
/// in the object database.
Loose {
/// The kind of the object.
kind: gix_object::Kind,
/// The size of the object's data in bytes.
size: u64,
},
/// The object was present in a pack.
///
/// Note that this does not imply it is unique in the database, as it might be present in more than one pack and even
/// as loose object.
Packed(gix_pack::data::decode::header::Outcome),
}
mod header {
use super::Header;
impl Header {
/// Return the object kind of the object we represent.
pub fn kind(&self) -> gix_object::Kind {
match self {
Header::Packed(out) => out.kind,
Header::Loose { kind, .. } => *kind,
}
}
/// Return the size of the object in bytes.
pub fn size(&self) -> u64 {
match self {
Header::Packed(out) => out.object_size,
Header::Loose { size, .. } => *size,
}
}
/// Return the amount of deltas decoded to obtain this header, if the object was packed.
pub fn num_deltas(&self) -> Option<u32> {
match self {
Header::Packed(out) => out.num_deltas.into(),
Header::Loose { .. } => None,
}
}
}
impl From<gix_pack::data::decode::header::Outcome> for Header {
fn from(packed_header: gix_pack::data::decode::header::Outcome) -> Self {
Header::Packed(packed_header)
}
}
impl From<(usize, gix_object::Kind)> for Header {
fn from((object_size, kind): (usize, gix_object::Kind)) -> Self {
Header::Loose {
kind,
size: object_size as u64,
}
}
}
}
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