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64 lines
1.5 KiB
64 lines
1.5 KiB
use crate::HashId;
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use git2::Repository;
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use std::sync::Arc;
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/// Represent a commit on a repository
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///
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/// When creating a commit object, it is guaranteed that it exists in
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/// the repository.
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#[derive(Clone)]
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pub struct Commit {
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pub id: HashId,
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repo: Arc<Repository>,
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}
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impl Commit {
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/// Create a commit object and check if it exists in the repo
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pub fn new(r: &Arc<Repository>, id: HashId) -> Option<Self> {
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r.find_commit(id.to_oid()).ok().map(|_| Self {
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id,
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repo: Arc::clone(r),
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})
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}
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pub fn id_str(&self) -> String {
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self.id.to_string()
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}
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pub fn summary(&self) -> String {
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self.find().summary().unwrap().into()
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}
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pub fn parent_count(&self) -> usize {
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self.repo
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.find_commit(self.id.to_oid())
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.unwrap()
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.parent_count()
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}
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/// Return the first parent, if it exists
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pub fn first_parent(&self) -> Option<Self> {
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self.find()
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.parent(0)
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.ok()
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.and_then(|c| Self::new(&self.repo, c.id().into()))
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}
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pub fn parent(&self, num: usize) -> Option<Self> {
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self.find()
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.parent(num)
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.ok()
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.and_then(|c| Self::new(&self.repo, c.id().into()))
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}
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pub fn parents(&self) -> Vec<Commit> {
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self.find()
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.parents()
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.map(|c| Self::new(&self.repo, c.id().into()).unwrap())
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.collect()
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}
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fn find(&self) -> git2::Commit {
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self.repo.find_commit(self.id.to_oid()).unwrap()
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}
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}
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