Reuse native macOS Git credentials

crates/storage/src/authentication.rs

@@ -455,6 +455,20 @@ impl<B: SecretStoreBackend, C: AuthenticationClock> GitCredentialProvider
             .map_err(|_| GitError::CredentialsUnavailable)?;
         self.shared.store.credential(server, application)
     }
+
+    fn credential_for(&self, remote: &crate::config::GitRemote) -> Result<GitCredential, GitError> {
+        let _operation = self
+            .shared
+            .operation()
+            .map_err(|_| GitError::CredentialsUnavailable)?;
+        self.shared
+            .expire_if_needed()
+            .map_err(|_| GitError::CredentialsUnavailable)?;
+        self.shared
+            .with_active(self.generation, |_| ())
+            .map_err(|_| GitError::CredentialsUnavailable)?;
+        self.shared.store.credential_for(remote)
+    }
 }
 
 impl<B: SecretStoreBackend, C: AuthenticationClock> SshPassphraseProvider