It's done so that commit->util can be removed. See more explanation in
the commit that removes commit->util.
---
builtin/merge.c | 25 +++++++++++++------------
commit.c | 12 ++++++++++--
commit.h | 2 +-
merge-recursive.c | 8 +++++---
4 files changed, 29 insertions(+), 18 deletions(-)
diff --git a/builtin/merge.c b/builtin/merge.c
index 9db5a2cf16..fc55bc264b 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -443,6 +443,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
struct object_id branch_head;
struct strbuf buf = STRBUF_INIT;
struct strbuf bname = STRBUF_INIT;
+ struct merge_remote_desc *desc;
const char *ptr;
char *found_ref;
int len, early;
@@ -515,16 +516,13 @@ static void merge_name(const char *remote, struct strbuf *msg)
strbuf_release(&truname);
}
- if (remote_head->util) {
- struct merge_remote_desc *desc;
- desc = merge_remote_util(remote_head);
- if (desc && desc->obj && desc->obj->type == OBJ_TAG) {
- strbuf_addf(msg, "%s\t\t%s '%s'\n",
- oid_to_hex(&desc->obj->oid),
- type_name(desc->obj->type),
- remote);
- goto cleanup;
- }
+ desc = merge_remote_util(remote_head);
+ if (desc && desc->obj && desc->obj->type == OBJ_TAG) {
+ strbuf_addf(msg, "%s\t\t%s '%s'\n",
+ oid_to_hex(&desc->obj->oid),
+ type_name(desc->obj->type),
+ remote);
+ goto cleanup;
}
strbuf_addf(msg, "%s\t\tcommit '%s'\n",
@@ -932,8 +930,11 @@ static void write_merge_heads(struct commit_list *remoteheads)
for (j = remoteheads; j; j = j->next) {
struct object_id *oid;
struct commit *c = j->item;
- if (c->util && merge_remote_util(c)->obj) {
- oid = &merge_remote_util(c)->obj->oid;
+ struct merge_remote_desc *desc;
+
+ desc = merge_remote_util(c);
+ if (desc && desc->obj) {
+ oid = &desc->obj->oid;
} else {
oid = &c->object.oid;
}
diff --git a/commit.c b/commit.c
index 57049118a5..e63a8dfeaa 100644
--- a/commit.c
+++ b/commit.c
@@ -1574,13 +1574,21 @@ int commit_tree_extended(const char *msg, size_t msg_len,
return result;
}
+define_commit_slab(merge_desc_slab, struct merge_remote_desc *);
+static struct merge_desc_slab merge_desc_slab = COMMIT_SLAB_INIT(1, merge_desc_slab);
+
+struct merge_remote_desc *merge_remote_util(struct commit *commit)
+{
+ return *merge_desc_slab_at(&merge_desc_slab, commit);
+}
+
void set_merge_remote_desc(struct commit *commit,
const char *name, struct object *obj)
{
struct merge_remote_desc *desc;
FLEX_ALLOC_STR(desc, name, name);
desc->obj = obj;
- commit->util = desc;
+ *merge_desc_slab_at(&merge_desc_slab, commit) = desc;
}
struct commit *get_merge_parent(const char *name)
@@ -1592,7 +1600,7 @@ struct commit *get_merge_parent(const char *name)
return NULL;
obj = parse_object(&oid);
commit = (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT);
- if (commit && !commit->util)
+ if (commit && !merge_remote_util(commit))
set_merge_remote_desc(commit, name, obj);
return commit;
}
diff --git a/commit.h b/commit.h
index e57ae4b583..838f6a6b26 100644
--- a/commit.h
+++ b/commit.h
@@ -303,7 +303,7 @@ struct merge_remote_desc {
struct object *obj; /* the named object, could be a tag */
char name[FLEX_ARRAY];
};
-#define merge_remote_util(commit) ((struct merge_remote_desc *)((commit)->util))
+extern struct merge_remote_desc *merge_remote_util(struct commit *);
extern void set_merge_remote_desc(struct commit *commit,
const char *name, struct object *obj);
diff --git a/merge-recursive.c b/merge-recursive.c
index 0c0d48624d..5537f01f8e 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -223,10 +223,12 @@ static void output(struct merge_options *o, int v, const char *fmt, ...)
static void output_commit_title(struct merge_options *o, struct commit *commit)
{
+ struct merge_remote_desc *desc;
+
strbuf_addchars(&o->obuf, ' ', o->call_depth * 2);
- if (commit->util)
- strbuf_addf(&o->obuf, "virtual %s\n",
- merge_remote_util(commit)->name);
+ desc = merge_remote_util(commit);
+ if (desc)
+ strbuf_addf(&o->obuf, "virtual %s\n", desc->name);
else {
strbuf_add_unique_abbrev(&o->obuf, &commit->object.oid,
DEFAULT_ABBREV);
--
2.17.0.705.g3525833791
