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#![feature(debug_non_exhaustive, result_flattening)]
#![warn(clippy::all, clippy::pedantic, clippy::cargo)]
#![allow(clippy::missing_errors_doc, clippy::must_use_candidate)]

macro_rules! truncate {
    ($n:expr, $t:ty) => {{
        #[allow(clippy::cast_possible_truncation)]
        {
            $n as $t
        }
    }};
}

mod diff;
mod file;
mod repo;

pub use diff::Meta;
pub use file::{Contents as FileContents, File as RepoFile};
pub use repo::Repo;

use std::io;

#[allow(unused)]
use tracing::{debug, error, info, instrument, span, warn};

pub type Result<T> = std::result::Result<T, crate::Error>;

#[derive(Debug, thiserror::Error, displaydoc::Display)]
pub enum Error {
    /// Internal git error: {0}
    Git2(#[from] git2::Error),
    /// IO Error
    Io(#[from] io::Error),
    /// Expected git_diff_file with oid {0:?} to have path
    MissingPath(git2::Oid),
    /// Error getting metadata for {1:?}
    GetFileMetadata(#[source] io::Error, RepoFile),
    /// Can't undo from the current point
    UndoEmpty,
    /// Can't redo from the current point
    RedoEmpty,
    /// Expected to find something at {0:?}
    PathNotFound(RepoFile),
    /// Asked to perform operation on {0:?}, but path matches ignore rule
    Ignored(RepoFile),
}