forked from mirrors/jj
149 lines
3.7 KiB
Rust
149 lines
3.7 KiB
Rust
// Copyright 2020 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
use std::cmp::Ordering;
|
|
use std::fmt::{Debug, Error, Formatter};
|
|
use std::hash::{Hash, Hasher};
|
|
use std::sync::Arc;
|
|
|
|
use crate::repo_path::DirRepoPath;
|
|
use crate::store;
|
|
use crate::store::{ChangeId, CommitId, Signature};
|
|
use crate::store_wrapper::StoreWrapper;
|
|
use crate::tree::Tree;
|
|
|
|
#[derive(Clone)]
|
|
pub struct Commit {
|
|
store: Arc<StoreWrapper>,
|
|
id: CommitId,
|
|
data: Arc<store::Commit>,
|
|
}
|
|
|
|
impl Debug for Commit {
|
|
fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error> {
|
|
f.debug_struct("Commit").field("id", &self.id).finish()
|
|
}
|
|
}
|
|
|
|
impl PartialEq for Commit {
|
|
fn eq(&self, other: &Self) -> bool {
|
|
self.id == other.id
|
|
}
|
|
}
|
|
|
|
impl Eq for Commit {}
|
|
|
|
impl Ord for Commit {
|
|
fn cmp(&self, other: &Self) -> Ordering {
|
|
self.id.cmp(&other.id)
|
|
}
|
|
}
|
|
|
|
impl PartialOrd for Commit {
|
|
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
|
|
Some(self.id.cmp(&other.id))
|
|
}
|
|
}
|
|
|
|
impl Hash for Commit {
|
|
fn hash<H: Hasher>(&self, state: &mut H) {
|
|
self.id.hash(state)
|
|
}
|
|
}
|
|
|
|
impl Commit {
|
|
pub fn new(store: Arc<StoreWrapper>, id: CommitId, data: Arc<store::Commit>) -> Self {
|
|
Commit { store, id, data }
|
|
}
|
|
|
|
pub fn store(&self) -> &Arc<StoreWrapper> {
|
|
&self.store
|
|
}
|
|
|
|
pub fn id(&self) -> &CommitId {
|
|
&self.id
|
|
}
|
|
|
|
pub fn parent_ids(&self) -> Vec<CommitId> {
|
|
if self.data.parents.is_empty() && &self.id != self.store.root_commit_id() {
|
|
vec![self.store.root_commit_id().clone()]
|
|
} else {
|
|
self.data.parents.clone()
|
|
}
|
|
}
|
|
|
|
pub fn parents(&self) -> Vec<Commit> {
|
|
let mut parents = Vec::new();
|
|
for parent in &self.data.parents {
|
|
parents.push(self.store.get_commit(parent).unwrap());
|
|
}
|
|
if parents.is_empty() && &self.id != self.store.root_commit_id() {
|
|
parents.push(self.store.root_commit())
|
|
}
|
|
parents
|
|
}
|
|
|
|
pub fn predecessor_ids(&self) -> Vec<CommitId> {
|
|
self.data.predecessors.clone()
|
|
}
|
|
|
|
pub fn predecessors(&self) -> Vec<Commit> {
|
|
let mut predecessors = Vec::new();
|
|
for predecessor in &self.data.predecessors {
|
|
predecessors.push(self.store.get_commit(predecessor).unwrap());
|
|
}
|
|
predecessors
|
|
}
|
|
|
|
pub fn tree(&self) -> Tree {
|
|
self.store
|
|
.get_tree(&DirRepoPath::root(), &self.data.root_tree)
|
|
.unwrap()
|
|
}
|
|
|
|
pub fn change_id(&self) -> &ChangeId {
|
|
&self.data.change_id
|
|
}
|
|
|
|
pub fn store_commit(&self) -> &store::Commit {
|
|
&self.data
|
|
}
|
|
|
|
pub fn is_open(&self) -> bool {
|
|
self.data.is_open
|
|
}
|
|
|
|
pub fn is_pruned(&self) -> bool {
|
|
self.data.is_pruned
|
|
}
|
|
|
|
pub fn is_empty(&self) -> bool {
|
|
let parents = self.parents();
|
|
// TODO: Perhaps the root commit should also be considered empty.
|
|
parents.len() == 1 && parents[0].tree().id() == self.tree().id()
|
|
}
|
|
|
|
pub fn description(&self) -> &str {
|
|
&self.data.description
|
|
}
|
|
|
|
pub fn author(&self) -> &Signature {
|
|
&self.data.author
|
|
}
|
|
|
|
pub fn committer(&self) -> &Signature {
|
|
&self.data.committer
|
|
}
|
|
}
|