#include "cache.h"
-#include "sha1-lookup.h"
+#include "oidmap.h"
+#include "object-store.h"
+#include "replace-object.h"
#include "refs.h"
+#include "repository.h"
#include "commit.h"
-/*
- * An array of replacements. The array is kept sorted by the original
- * sha1.
- */
-static struct replace_object {
- struct object_id original;
- struct object_id replacement;
-} **replace_object;
-
-static int replace_object_alloc, replace_object_nr;
-
-static const unsigned char *replace_sha1_access(size_t index, void *table)
-{
- struct replace_object **replace = table;
- return replace[index]->original.hash;
-}
-
-static int replace_object_pos(const unsigned char *sha1)
-{
- return sha1_pos(sha1, replace_object, replace_object_nr,
- replace_sha1_access);
-}
-
-static int register_replace_object(struct replace_object *replace,
- int ignore_dups)
-{
- int pos = replace_object_pos(replace->original.hash);
-
- if (0 <= pos) {
- if (ignore_dups)
- free(replace);
- else {
- free(replace_object[pos]);
- replace_object[pos] = replace;
- }
- return 1;
- }
- pos = -pos - 1;
- ALLOC_GROW(replace_object, replace_object_nr + 1, replace_object_alloc);
- replace_object_nr++;
- if (pos < replace_object_nr)
- MOVE_ARRAY(replace_object + pos + 1, replace_object + pos,
- replace_object_nr - pos - 1);
- replace_object[pos] = replace;
- return 0;
-}
-
static int register_replace_ref(const char *refname,
const struct object_id *oid,
int flag, void *cb_data)
const char *hash = slash ? slash + 1 : refname;
struct replace_object *repl_obj = xmalloc(sizeof(*repl_obj));
- if (get_oid_hex(hash, &repl_obj->original)) {
+ if (get_oid_hex(hash, &repl_obj->original.oid)) {
free(repl_obj);
warning("bad replace ref name: %s", refname);
return 0;
oidcpy(&repl_obj->replacement, oid);
/* Register new object */
- if (register_replace_object(repl_obj, 1))
+ if (oidmap_put(the_repository->objects->replace_map, repl_obj))
die("duplicate replace ref: %s", refname);
return 0;
}
-static void prepare_replace_object(void)
+static void prepare_replace_object(struct repository *r)
{
- static int replace_object_prepared;
-
- if (replace_object_prepared)
+ if (r->objects->replace_map)
return;
- for_each_replace_ref(register_replace_ref, NULL);
- replace_object_prepared = 1;
- if (!replace_object_nr)
- check_replace_refs = 0;
+ r->objects->replace_map =
+ xmalloc(sizeof(*the_repository->objects->replace_map));
+ oidmap_init(r->objects->replace_map, 0);
+
+ for_each_replace_ref(r, register_replace_ref, NULL);
}
/* We allow "recursive" replacement. Only within reason, though */
* permanently-allocated value. This function always respects replace
* references, regardless of the value of check_replace_refs.
*/
-const struct object_id *do_lookup_replace_object(const struct object_id *oid)
+const struct object_id *do_lookup_replace_object(struct repository *r,
+ const struct object_id *oid)
{
- int pos, depth = MAXREPLACEDEPTH;
+ int depth = MAXREPLACEDEPTH;
const struct object_id *cur = oid;
- prepare_replace_object();
+ prepare_replace_object(r);
/* Try to recursively replace the object */
- do {
- if (--depth < 0)
- die("replace depth too high for object %s",
- oid_to_hex(oid));
-
- pos = replace_object_pos(cur->hash);
- if (0 <= pos)
- cur = &replace_object[pos]->replacement;
- } while (0 <= pos);
-
- return cur;
+ while (depth-- > 0) {
+ struct replace_object *repl_obj =
+ oidmap_get(r->objects->replace_map, cur);
+ if (!repl_obj)
+ return cur;
+ cur = &repl_obj->replacement;
+ }
+ die("replace depth too high for object %s", oid_to_hex(oid));
}