thin_fetch/object/
mod.rs

1//! Git objects.
2
3use std::io::Write;
4
5use gix_object::{Kind, WriteTo};
6
7use ring::digest::Digest;
8
9mod blob;
10mod commit;
11mod tag;
12mod tree;
13
14pub use blob::Blob;
15pub use commit::Commit;
16pub use tag::Tag;
17pub use tree::{Tree, TreeEntry};
18
19use crate::{Error, WithError};
20
21#[derive(Debug)]
22pub enum Object {
23    Commit(Box<Commit>),
24    Tree(Tree),
25    Blob(Blob),
26    Tag(Tag),
27}
28
29impl Object {
30    #[must_use]
31    pub fn hash(&self) -> Digest {
32        match self {
33            Self::Commit(data) => data.hash,
34            Self::Tree(tree) => tree.hash,
35            Self::Blob(blob) => blob.hash,
36            Self::Tag(tag) => tag.hash,
37        }
38    }
39
40    #[must_use]
41    pub fn kind(&self) -> Kind {
42        match self {
43            Self::Commit(_) => Kind::Commit,
44            Self::Tree(_) => Kind::Tree,
45            Self::Blob(_) => Kind::Blob,
46            Self::Tag(_) => Kind::Tag,
47        }
48    }
49
50    /// # Errors
51    pub fn write_to<W: Write>(&self, mut writer: W) -> Result<(), Error> {
52        match self {
53            Object::Commit(commit) => {
54                let size = commit.size();
55                write!(writer, "commit {size}\x00")?;
56
57                commit
58                    .commit
59                    .write_to(&mut writer)
60                    .with_err_msg("could not write commit")
61            }
62            Object::Tree(tree) => {
63                let size = tree.size();
64                write!(writer, "tree {size}\x00")?;
65
66                tree.write_to(writer).with_err_msg("could not write tree")
67            }
68            Object::Blob(blob) => {
69                let size = blob.content.len();
70                write!(writer, "blob {size}\x00")?;
71
72                writer
73                    .write_all(&blob.content)
74                    .with_err_msg("could not write blob")
75            }
76            Object::Tag(tag) => {
77                let size = tag.tag.size();
78                write!(writer, "tag {size}\x00")?;
79
80                tag.tag
81                    .write_to(&mut writer)
82                    .with_err_msg("could not write tag")
83            }
84        }
85    }
86
87    #[must_use]
88    pub fn size(&self) -> u64 {
89        match self {
90            Self::Commit(commit) => commit.size(),
91            Self::Tree(tree) => tree.size(),
92            Self::Blob(blob) => blob.size(),
93            Self::Tag(tag) => tag.size(),
94        }
95    }
96}
thin_fetch/object/mod.rs

thin_fetch/object/
mod.rs
