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use crate::{Error, Project};
use git2::{BranchType, Repository};
use ignore::DirEntry;
use std::{cmp::Ordering, path::PathBuf, time::Duration};
#[derive(Debug, Clone)]
pub struct GitProject {
path_buf: PathBuf,
latest_commit: Option<Duration>,
}
impl GitProject {
fn new(path_buf: PathBuf) -> Result<Self, Error> {
let repository = Repository::open(&path_buf)?;
let latest_commit = Self::latest_commit(&repository);
Ok(Self {
path_buf,
latest_commit,
})
}
fn latest_commit(repository: &Repository) -> Option<Duration> {
let mut branches = repository.branches(Some(BranchType::Local)).ok()?;
branches
.try_fold(0, |latest, branch| {
let branch = branch?.0;
let name = branch
.name()?
.ok_or_else(|| git2::Error::from_str("Failed to find branch"))?;
repository
.revparse_single(name)?
.peel_to_commit()
.map(|c| (c.time().seconds() as u64).max(latest))
})
.map(Duration::from_secs)
.ok()
}
}
impl Project for GitProject {
fn timestamp(&self) -> Option<Duration> {
self.latest_commit
}
fn to_path_buf(&self) -> PathBuf {
self.path_buf.to_owned()
}
}
impl PartialEq for GitProject {
fn eq(&self, other: &Self) -> bool {
match (self.latest_commit, other.latest_commit) {
(Some(time), Some(other_time)) => time.eq(&other_time),
_ => false,
}
}
}
impl PartialOrd for GitProject {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
match (self.latest_commit, other.latest_commit) {
(Some(time), Some(other_time)) => time.partial_cmp(&other_time),
_ => None,
}
}
}
impl TryFrom<PathBuf> for GitProject {
type Error = Error;
fn try_from(value: PathBuf) -> Result<Self, Self::Error> {
Self::new(value)
}
}
impl TryFrom<DirEntry> for GitProject {
type Error = Error;
fn try_from(value: DirEntry) -> Result<Self, Self::Error> {
Self::new(value.into_path())
}
}
impl From<GitProject> for PathBuf {
fn from(value: GitProject) -> Self {
value.path_buf
}
}
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