It's done so that commit->util can be removed. See more explanation in
the commit that removes commit->util.
---
builtin/show-branch.c | 39 +++++++++++++++++++++++++++------------
1 file changed, 27 insertions(+), 12 deletions(-)
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 6c2148b71d..29d15d16d2 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -7,6 +7,7 @@
#include "argv-array.h"
#include "parse-options.h"
#include "dir.h"
+#include "commit-slab.h"
static const char* show_branch_usage[] = {
N_("git show-branch [-a | --all] [-r | --remotes] [--topo-order |
--date-order]\n"
@@ -59,15 +60,27 @@ struct commit_name {
int generation; /* how many parents away from head_name */
};
+define_commit_slab(commit_name_slab, struct commit_name *);
+static struct commit_name_slab name_slab;
+
+static struct commit_name *commit_to_name(struct commit *commit)
+{
+ return *commit_name_slab_at(&name_slab, commit);
+}
+
+
/* Name the commit as nth generation ancestor of head_name;
* we count only the first-parent relationship for naming purposes.
*/
static void name_commit(struct commit *commit, const char *head_name, int nth)
{
struct commit_name *name;
- if (!commit->util)
- commit->util = xmalloc(sizeof(struct commit_name));
- name = commit->util;
+
+ name = *commit_name_slab_at(&name_slab, commit);
+ if (!name) {
+ name = xmalloc(sizeof(*name));
+ *commit_name_slab_at(&name_slab, commit) = name;
+ }
name->head_name = head_name;
name->generation = nth;
}
@@ -79,8 +92,8 @@ static void name_commit(struct commit *commit, const char
*head_name, int nth)
*/
static void name_parent(struct commit *commit, struct commit *parent)
{
- struct commit_name *commit_name = commit->util;
- struct commit_name *parent_name = parent->util;
+ struct commit_name *commit_name = commit_to_name(commit);
+ struct commit_name *parent_name = commit_to_name(parent);
if (!commit_name)
return;
if (!parent_name ||
@@ -94,12 +107,12 @@ static int name_first_parent_chain(struct commit *c)
int i = 0;
while (c) {
struct commit *p;
- if (!c->util)
+ if (!commit_to_name(c))
break;
if (!c->parents)
break;
p = c->parents->item;
- if (!p->util) {
+ if (!commit_to_name(p)) {
name_parent(c, p);
i++;
}
@@ -122,7 +135,7 @@ static void name_commits(struct commit_list *list,
/* First give names to the given heads */
for (cl = list; cl; cl = cl->next) {
c = cl->item;
- if (c->util)
+ if (commit_to_name(c))
continue;
for (i = 0; i < num_rev; i++) {
if (rev[i] == c) {
@@ -148,9 +161,9 @@ static void name_commits(struct commit_list *list,
struct commit_name *n;
int nth;
c = cl->item;
- if (!c->util)
+ if (!commit_to_name(c))
continue;
- n = c->util;
+ n = commit_to_name(c);
parents = c->parents;
nth = 0;
while (parents) {
@@ -158,7 +171,7 @@ static void name_commits(struct commit_list *list,
struct strbuf newname = STRBUF_INIT;
parents = parents->next;
nth++;
- if (p->util)
+ if (commit_to_name(p))
continue;
switch (n->generation) {
case 0:
@@ -271,7 +284,7 @@ static void show_one_commit(struct commit *commit, int
no_name)
{
struct strbuf pretty = STRBUF_INIT;
const char *pretty_str = "(unavailable)";
- struct commit_name *name = commit->util;
+ struct commit_name *name = commit_to_name(commit);
if (commit->object.parsed) {
pp_commit_easy(CMIT_FMT_ONELINE, commit, &pretty);
@@ -660,6 +673,8 @@ int cmd_show_branch(int ac, const char **av, const char
*prefix)
OPT_END()
};
+ init_commit_name_slab(&name_slab);
+
git_config(git_show_branch_config, NULL);
/* If nothing is specified, try the default first */
--
2.17.0.705.g3525833791
