jujutsu_lib/
commit.rs

1// Copyright 2020 The Jujutsu Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// https://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::cmp::Ordering;
16use std::fmt::{Debug, Error, Formatter};
17use std::hash::{Hash, Hasher};
18use std::sync::Arc;
19
20use crate::backend;
21use crate::backend::{ChangeId, CommitId, Signature, TreeId};
22use crate::repo_path::RepoPath;
23use crate::store::Store;
24use crate::tree::Tree;
25
26#[derive(Clone)]
27pub struct Commit {
28    store: Arc<Store>,
29    id: CommitId,
30    data: Arc<backend::Commit>,
31}
32
33impl Debug for Commit {
34    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error> {
35        f.debug_struct("Commit").field("id", &self.id).finish()
36    }
37}
38
39impl PartialEq for Commit {
40    fn eq(&self, other: &Self) -> bool {
41        self.id == other.id
42    }
43}
44
45impl Eq for Commit {}
46
47impl Ord for Commit {
48    fn cmp(&self, other: &Self) -> Ordering {
49        self.id.cmp(&other.id)
50    }
51}
52
53impl PartialOrd for Commit {
54    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
55        Some(self.id.cmp(&other.id))
56    }
57}
58
59impl Hash for Commit {
60    fn hash<H: Hasher>(&self, state: &mut H) {
61        self.id.hash(state)
62    }
63}
64
65impl Commit {
66    pub fn new(store: Arc<Store>, id: CommitId, data: Arc<backend::Commit>) -> Self {
67        Commit { store, id, data }
68    }
69
70    pub fn store(&self) -> &Arc<Store> {
71        &self.store
72    }
73
74    pub fn id(&self) -> &CommitId {
75        &self.id
76    }
77
78    pub fn parent_ids(&self) -> &[CommitId] {
79        &self.data.parents
80    }
81
82    pub fn parents(&self) -> Vec<Commit> {
83        self.data
84            .parents
85            .iter()
86            .map(|id| self.store.get_commit(id).unwrap())
87            .collect()
88    }
89
90    pub fn predecessor_ids(&self) -> &[CommitId] {
91        &self.data.predecessors
92    }
93
94    pub fn predecessors(&self) -> Vec<Commit> {
95        self.data
96            .predecessors
97            .iter()
98            .map(|id| self.store.get_commit(id).unwrap())
99            .collect()
100    }
101
102    pub fn tree(&self) -> Tree {
103        self.store
104            .get_tree(&RepoPath::root(), &self.data.root_tree)
105            .unwrap()
106    }
107
108    pub fn tree_id(&self) -> &TreeId {
109        &self.data.root_tree
110    }
111
112    pub fn change_id(&self) -> &ChangeId {
113        &self.data.change_id
114    }
115
116    pub fn store_commit(&self) -> &backend::Commit {
117        &self.data
118    }
119
120    pub fn description(&self) -> &str {
121        &self.data.description
122    }
123
124    pub fn author(&self) -> &Signature {
125        &self.data.author
126    }
127
128    pub fn committer(&self) -> &Signature {
129        &self.data.committer
130    }
131}
jujutsu_lib/commit.rs

jujutsu_lib/
commit.rs
