packfile: refactor hash search with fanout table

diff --git a/worktree.c b/worktree.c
index e28ffbeb096a85d67b2e885c48ab096340b5d295..f8c40f2f5f8ce5b18c976b5281f5618adbeee4a7 100644 (file)
--- a/worktree.c
+++ b/worktree.c
@@ -30,7 +30,7 @@ static void add_head_info(struct worktree *wt)
 
        target = refs_resolve_ref_unsafe(get_worktree_ref_store(wt),
                                         "HEAD",
-                                        RESOLVE_REF_READING,
+                                        0,
                                         wt->head_sha1, &flags);
        if (!target)
                return;
@@ -307,7 +307,6 @@ const struct worktree *find_shared_symref(const char *symref,
        for (i = 0; worktrees[i]; i++) {
                struct worktree *wt = worktrees[i];
                const char *symref_target;
-               unsigned char sha1[20];
                struct ref_store *refs;
                int flags;
 
@@ -327,8 +326,9 @@ const struct worktree *find_shared_symref(const char *symref,
 
                refs = get_worktree_ref_store(wt);
                symref_target = refs_resolve_ref_unsafe(refs, symref, 0,
-                                                       sha1, &flags);
-               if ((flags & REF_ISSYMREF) && !strcmp(symref_target, target)) {
+                                                       NULL, &flags);
+               if ((flags & REF_ISSYMREF) &&
+                   symref_target && !strcmp(symref_target, target)) {
                        existing = wt;
                        break;
                }
@@ -386,3 +386,25 @@ int submodule_uses_worktrees(const char *path)
        closedir(dir);
        return ret;
 }
+
+int other_head_refs(each_ref_fn fn, void *cb_data)
+{
+       struct worktree **worktrees, **p;
+       int ret = 0;
+
+       worktrees = get_worktrees(0);
+       for (p = worktrees; *p; p++) {
+               struct worktree *wt = *p;
+               struct ref_store *refs;
+
+               if (wt->is_current)
+                       continue;
+
+               refs = get_worktree_ref_store(wt);
+               ret = refs_head_ref(refs, fn, cb_data);
+               if (ret)
+                       break;
+       }
+       free_worktrees(worktrees);
+       return ret;
+}