Preserve semver compatibility

Author: rtimush

src/api/builder.rs

@@ -1,7 +1,8 @@
 use std::{env, error::Error, path::PathBuf, sync::Arc};
 
-use crate::{config::ProtofetchConfig,
-    fetch::ParallelConfig, git::cache::ProtofetchGitCache, Protofetch};
+use crate::{
+    config::ProtofetchConfig, fetch::ParallelConfig, git::cache::ProtofetchGitCache, Protofetch,
+};
 
 #[derive(Default)]
 pub struct ProtofetchBuilder {

src/git/backend/mod.rs

@@ -3,7 +3,10 @@ pub mod error;
 pub mod libgit2;
 pub mod types;
 
-use std::path::{Path, PathBuf};
+use std::{
+    panic::{RefUnwindSafe, UnwindSafe},
+    path::{Path, PathBuf},
+};
 
 use log::info;
 use serde::Deserialize;
@@ -34,7 +37,7 @@ pub trait GitRepository {
 }
 
 /// Factory for opening or creating git repositories.
-pub trait GitBackend {
+pub trait GitBackend: Send + Sync + UnwindSafe + RefUnwindSafe {
     /// Initialize a new bare repository at the given path and return a handle to it.
     fn init_bare(&self, path: &Path) -> Result<Box<dyn GitRepository>, GitBackendError>;
 

src/git/cache.rs

@@ -83,7 +83,7 @@ impl ProtofetchGitCache {
         Ok(())
     }
 
-    pub fn repository(&self, entry: &Coordinate) -> Result<ProtoGitRepository<'_>, CacheError> {
+    pub fn repository(&self, entry: &Coordinate) -> Result<ProtoGitRepository, CacheError> {
         let mut path = self.location.clone();
         path.push(entry.to_path());
 

src/git/repository.rs

@@ -43,7 +43,7 @@ impl ProtoGitRepository {
         repo: Box<dyn GitRepository>,
         origin: String,
         worktrees_base: &Path,
-    ) -> ProtoGitRepository<'_> {
+    ) -> ProtoGitRepository {
         ProtoGitRepository {
             repo,
             origin,