Simplify git origin a bit

src/origin/store/git.rs

@@ -4,13 +4,14 @@ use crate::origin::{self, store};
 use std::path::{Path, PathBuf};
 use std::{collections, fs, io, sync};
 
+#[derive(Clone)]
 struct Origin {
     descr: origin::Descr,
-    repo: gix::ThreadSafeRepository,
+    repo: sync::Arc<gix::ThreadSafeRepository>,
     tree_object_id: gix::ObjectId,
 }
 
-impl origin::Origin for sync::Arc<Origin> {
+impl origin::Origin for Origin {
     fn descr(&self) -> &origin::Descr {
         &self.descr
     }
@@ -67,7 +68,7 @@ struct Store {
     // more than one origin to be syncing at a time
     sync_guard: sync::Mutex<collections::HashMap<origin::Descr, ()>>,
 
-    origins: sync::RwLock<collections::HashMap<origin::Descr, sync::Arc<Origin>>>,
+    origins: sync::RwLock<collections::HashMap<origin::Descr, Origin>>,
 }
 
 pub fn new(dir_path: PathBuf) -> io::Result<impl super::BoxedStore> {
@@ -96,7 +97,7 @@ impl Store {
         &self,
         repo: gix::Repository,
         descr: origin::Descr,
-    ) -> Result<sync::Arc<Origin>, GetOriginError> {
+    ) -> Result<Origin, GetOriginError> {
         let origin::Descr::Git {
             ref branch_name, ..
         } = descr;
@@ -118,11 +119,11 @@ impl Store {
             .map_unexpected_while(|| format!("parsing {commit_object_id} as commit"))?
             .tree();
 
-        Ok(sync::Arc::from(Origin {
+        Ok(Origin {
             descr,
-            repo: repo.into(),
+            repo: sync::Arc::new(repo.into()),
             tree_object_id,
-        }))
+        })
     }
 
     fn sync_inner(
@@ -210,7 +211,7 @@ impl Store {
 impl super::BoxedStore for sync::Arc<Store> {}
 
 impl super::Store for sync::Arc<Store> {
-    type Origin<'store> = sync::Arc<Origin>
+    type Origin<'store> = Origin
             where Self: 'store;
 
     type AllDescrsIter<'store> = Box<dyn Iterator<Item = store::AllDescrsResult<origin::Descr>> + 'store>