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name-rev: use commit-slab for rev-name instead of commit->util 

It's done so that commit->util can be removed. See more explanation in
the commit that removes commit->util.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2018-05-19 07:28:26 +02:00 committed by Junio C Hamano
parent bb408ac95d
commit 8fd79a7304
1 changed files with 20 additions and 3 deletions
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23
builtin/name-rev.c
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@ -6,6 +6,7 @@
#include "refs.h"
#include "parse-options.h"
#include "sha1-lookup.h"
#include "commit-slab.h"
#define CUTOFF_DATE_SLOP 86400 /* one day */
@ -17,11 +18,26 @@ typedef struct rev_name {
int from_tag;
} rev_name;
define_commit_slab(commit_rev_name, struct rev_name *);
static timestamp_t cutoff = TIME_MAX;
static struct commit_rev_name rev_names;
/* How many generations are maximally preferred over _one_ merge traversal? */
#define MERGE_TRAVERSAL_WEIGHT 65535
static struct rev_name *get_commit_rev_name(struct commit *commit)
{
struct rev_name **slot = commit_rev_name_peek(&rev_names, commit);
return slot ? *slot : NULL;
}
static void set_commit_rev_name(struct commit *commit, struct rev_name *name)
{
*commit_rev_name_at(&rev_names, commit) = name;
}
static int is_better_name(struct rev_name *name,
const char *tip_name,
timestamp_t taggerdate,
@ -65,7 +81,7 @@ static void name_rev(struct commit *commit,
int generation, int distance, int from_tag,
int deref)
{
struct rev_name *name = (struct rev_name *)commit->util;
struct rev_name *name = get_commit_rev_name(commit);
struct commit_list *parents;
int parent_number = 1;
char *to_free = NULL;
@ -84,7 +100,7 @@ static void name_rev(struct commit *commit,
if (name == NULL) {
name = xmalloc(sizeof(rev_name));
commit->util = name;
set_commit_rev_name(commit, name);
goto copy_data;
} else if (is_better_name(name, tip_name, taggerdate,
generation, distance, from_tag)) {
@ -296,7 +312,7 @@ static const char *get_rev_name(const struct object *o, struct strbuf *buf)
if (o->type != OBJ_COMMIT)
return get_exact_ref_match(o);
c = (struct commit *) o;
n = c->util;
n = get_commit_rev_name(c);
if (!n)
return NULL;
@ -413,6 +429,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix)
OPT_END(),
};
init_commit_rev_name(&rev_names);
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, opts, name_rev_usage, 0);
if (all + transform_stdin + !!argc > 1) {