refs: introduce get_worktree_ref_store()
files-backend at this point is still aware of the per-repo/worktree
separation in refs, so it can handle a linked worktree.
Some refs operations are known not working when current files-backend is
used in a linked worktree (e.g. reflog). Tests will be written when
refs_* functions start to be called with worktree backend to verify that
they work as expected.
Note: accessing a worktree of a submodule remains unaddressed. Perhaps
after get_worktrees() can access submodule (or rather a new function
get_submodule_worktrees(), that lists worktrees of a submodule), we can
update this function to work with submodules as well.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/refs.c b/refs.c
index 6e6f0ec..7972720 100644
--- a/refs.c
+++ b/refs.c
@@ -10,6 +10,7 @@
#include "object.h"
#include "tag.h"
#include "submodule.h"
+#include "worktree.h"
/*
* List of all available backends
@@ -1486,6 +1487,9 @@ static struct ref_store *main_ref_store;
/* A hashmap of ref_stores, stored by submodule name: */
static struct hashmap submodule_ref_stores;
+/* A hashmap of ref_stores, stored by worktree id: */
+static struct hashmap worktree_ref_stores;
+
/*
* Look up a ref store by name. If that ref_store hasn't been
* registered yet, return NULL.
@@ -1586,6 +1590,32 @@ struct ref_store *get_submodule_ref_store(const char *submodule)
return refs;
}
+struct ref_store *get_worktree_ref_store(const struct worktree *wt)
+{
+ struct ref_store *refs;
+ const char *id;
+
+ if (wt->is_current)
+ return get_main_ref_store();
+
+ id = wt->id ? wt->id : "/";
+ refs = lookup_ref_store_map(&worktree_ref_stores, id);
+ if (refs)
+ return refs;
+
+ if (wt->id)
+ refs = ref_store_init(git_common_path("worktrees/%s", wt->id),
+ REF_STORE_ALL_CAPS);
+ else
+ refs = ref_store_init(get_git_common_dir(),
+ REF_STORE_ALL_CAPS);
+
+ if (refs)
+ register_ref_store_map(&worktree_ref_stores, "worktree",
+ refs, id);
+ return refs;
+}
+
void base_ref_store_init(struct ref_store *refs,
const struct ref_storage_be *be)
{
