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//!
use std::convert::TryInto;
use gix_hash::ObjectId;
pub use gix_object::Kind;
use crate::{Commit, Id, Object, ObjectDetached, Tag, Tree};
mod errors;
pub(crate) mod cache {
pub use gix_pack::cache::object::MemoryCappedHashmap;
}
pub use errors::{conversion, find, write};
///
pub mod blob;
///
pub mod commit;
mod impls;
pub mod peel;
mod tag;
///
pub mod tree;
///
pub mod try_into {
#[derive(thiserror::Error, Debug)]
#[allow(missing_docs)]
#[error("Object named {id} was supposed to be of kind {expected}, but was kind {actual}.")]
pub struct Error {
pub actual: gix_object::Kind,
pub expected: gix_object::Kind,
pub id: gix_hash::ObjectId,
}
}
impl ObjectDetached {
/// Infuse this owned object with `repo` access.
pub fn attach(self, repo: &crate::Repository) -> Object<'_> {
Object {
id: self.id,
kind: self.kind,
data: self.data,
repo,
}
}
}
impl std::fmt::Debug for ObjectDetached {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
use gix_object::Kind::*;
let type_name = match self.kind {
Blob => "Blob",
Commit => "Commit",
Tree => "Tree",
Tag => "Tag",
};
write!(f, "{}({})", type_name, self.id)
}
}
/// Consuming conversions to attached object kinds.
impl<'repo> Object<'repo> {
pub(crate) fn from_data(
id: impl Into<ObjectId>,
kind: Kind,
data: Vec<u8>,
repo: &'repo crate::Repository,
) -> Self {
Object {
id: id.into(),
kind,
data,
repo,
}
}
/// Transform this object into a tree, or panic if it is none.
pub fn into_tree(self) -> Tree<'repo> {
match self.try_into() {
Ok(tree) => tree,
Err(this) => panic!("Tried to use {} as tree, but was {}", this.id, this.kind),
}
}
/// Transform this object into a commit, or panic if it is none.
pub fn into_commit(self) -> Commit<'repo> {
match self.try_into() {
Ok(commit) => commit,
Err(this) => panic!("Tried to use {} as commit, but was {}", this.id, this.kind),
}
}
/// Transform this object into a commit, or return it as part of the `Err` if it is no commit.
pub fn try_into_commit(self) -> Result<Commit<'repo>, try_into::Error> {
self.try_into().map_err(|this: Self| try_into::Error {
id: this.id,
actual: this.kind,
expected: gix_object::Kind::Commit,
})
}
/// Transform this object into a tag, or return it as part of the `Err` if it is no commit.
pub fn try_into_tag(self) -> Result<Tag<'repo>, try_into::Error> {
self.try_into().map_err(|this: Self| try_into::Error {
id: this.id,
actual: this.kind,
expected: gix_object::Kind::Commit,
})
}
/// Transform this object into a tree, or return it as part of the `Err` if it is no tree.
pub fn try_into_tree(self) -> Result<Tree<'repo>, try_into::Error> {
self.try_into().map_err(|this: Self| try_into::Error {
id: this.id,
actual: this.kind,
expected: gix_object::Kind::Tree,
})
}
}
impl<'repo> Object<'repo> {
/// Create an owned instance of this object, copying our data in the process.
pub fn detached(&self) -> ObjectDetached {
ObjectDetached {
id: self.id,
kind: self.kind,
data: self.data.clone(),
}
}
/// Sever the connection to the `Repository` and turn this instance into a standalone object.
pub fn detach(self) -> ObjectDetached {
self.into()
}
}
/// Conversions to detached, lower-level object types.
impl<'repo> Object<'repo> {
/// Obtain a fully parsed commit whose fields reference our data buffer,
///
/// # Panic
///
/// - this object is not a commit
/// - the commit could not be decoded
pub fn to_commit_ref(&self) -> gix_object::CommitRef<'_> {
self.try_to_commit_ref().expect("BUG: need a commit")
}
/// Obtain a fully parsed commit whose fields reference our data buffer.
pub fn try_to_commit_ref(&self) -> Result<gix_object::CommitRef<'_>, conversion::Error> {
gix_object::Data::new(self.kind, &self.data)
.decode()?
.into_commit()
.ok_or(conversion::Error::UnexpectedType {
expected: gix_object::Kind::Commit,
actual: self.kind,
})
}
/// Obtain a an iterator over commit tokens like in [`to_commit_iter()`][Object::try_to_commit_ref_iter()].
///
/// # Panic
///
/// - this object is not a commit
pub fn to_commit_ref_iter(&self) -> gix_object::CommitRefIter<'_> {
gix_object::Data::new(self.kind, &self.data)
.try_into_commit_iter()
.expect("BUG: This object must be a commit")
}
/// Obtain a commit token iterator from the data in this instance, if it is a commit.
pub fn try_to_commit_ref_iter(&self) -> Option<gix_object::CommitRefIter<'_>> {
gix_object::Data::new(self.kind, &self.data).try_into_commit_iter()
}
/// Obtain a tag token iterator from the data in this instance.
///
/// # Panic
///
/// - this object is not a tag
pub fn to_tag_ref_iter(&self) -> gix_object::TagRefIter<'_> {
gix_object::Data::new(self.kind, &self.data)
.try_into_tag_iter()
.expect("BUG: this object must be a tag")
}
/// Obtain a tag token iterator from the data in this instance.
///
/// # Panic
///
/// - this object is not a tag
pub fn try_to_tag_ref_iter(&self) -> Option<gix_object::TagRefIter<'_>> {
gix_object::Data::new(self.kind, &self.data).try_into_tag_iter()
}
/// Obtain a tag object from the data in this instance.
///
/// # Panic
///
/// - this object is not a tag
/// - the tag could not be decoded
pub fn to_tag_ref(&self) -> gix_object::TagRef<'_> {
self.try_to_tag_ref().expect("BUG: need tag")
}
/// Obtain a fully parsed tag object whose fields reference our data buffer.
pub fn try_to_tag_ref(&self) -> Result<gix_object::TagRef<'_>, conversion::Error> {
gix_object::Data::new(self.kind, &self.data)
.decode()?
.into_tag()
.ok_or(conversion::Error::UnexpectedType {
expected: gix_object::Kind::Tag,
actual: self.kind,
})
}
/// Return the attached id of this object.
pub fn id(&self) -> Id<'repo> {
Id::from_id(self.id, self.repo)
}
}
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