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#![deny(warnings)]

#[macro_export]
macro_rules! some_or {
    ($e:expr, $b:block) => {
        if let Some(x) = $e {
            x
        } else {
            $b
        }
    };
}

#[macro_export]
macro_rules! ok_or {
    ($e:expr, $b:block) => {
        if let Ok(x) = $e {
            x
        } else {
            $b
        }
    };
}

extern crate git2;

#[macro_use]
extern crate log;

#[macro_use]
extern crate pest_derive;

extern crate pest;

pub mod base_repo;
pub mod cgi;
pub mod scratch;
pub mod shell;
pub mod view_maps;
mod views;
pub mod virtual_repo;

pub use scratch::apply_view_to_refs;
pub use scratch::unapply_view;
pub use views::build_chain;
pub use views::build_view;

#[derive(Clone)]
pub enum UnapplyView {
    Done(git2::Oid),
    RejectMerge,
}

fn empty_tree_id() -> git2::Oid {
    return git2::Oid::from_str("4b825dc642cb6eb9a060e54bf8d69288fbee4904").unwrap();
}