mirror of
https://github.com/git/git.git
synced 2024-11-23 18:05:29 +08:00
3cd474599f
Signed-off-by: Thiago Farina <tfransosi@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
#include "cache.h"
|
|
#include "commit.h"
|
|
#include "tag.h"
|
|
|
|
static int is_shallow = -1;
|
|
|
|
int register_shallow(const unsigned char *sha1)
|
|
{
|
|
struct commit_graft *graft =
|
|
xmalloc(sizeof(struct commit_graft));
|
|
struct commit *commit = lookup_commit(sha1);
|
|
|
|
hashcpy(graft->sha1, sha1);
|
|
graft->nr_parent = -1;
|
|
if (commit && commit->object.parsed)
|
|
commit->parents = NULL;
|
|
return register_commit_graft(graft, 0);
|
|
}
|
|
|
|
int is_repository_shallow(void)
|
|
{
|
|
FILE *fp;
|
|
char buf[1024];
|
|
|
|
if (is_shallow >= 0)
|
|
return is_shallow;
|
|
|
|
fp = fopen(git_path("shallow"), "r");
|
|
if (!fp) {
|
|
is_shallow = 0;
|
|
return is_shallow;
|
|
}
|
|
is_shallow = 1;
|
|
|
|
while (fgets(buf, sizeof(buf), fp)) {
|
|
unsigned char sha1[20];
|
|
if (get_sha1_hex(buf, sha1))
|
|
die("bad shallow line: %s", buf);
|
|
register_shallow(sha1);
|
|
}
|
|
fclose(fp);
|
|
return is_shallow;
|
|
}
|
|
|
|
struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
|
|
int shallow_flag, int not_shallow_flag)
|
|
{
|
|
int i = 0, cur_depth = 0;
|
|
struct commit_list *result = NULL;
|
|
struct object_array stack = OBJECT_ARRAY_INIT;
|
|
struct commit *commit = NULL;
|
|
|
|
while (commit || i < heads->nr || stack.nr) {
|
|
struct commit_list *p;
|
|
if (!commit) {
|
|
if (i < heads->nr) {
|
|
commit = (struct commit *)
|
|
deref_tag(heads->objects[i++].item, NULL, 0);
|
|
if (!commit || commit->object.type != OBJ_COMMIT) {
|
|
commit = NULL;
|
|
continue;
|
|
}
|
|
if (!commit->util)
|
|
commit->util = xmalloc(sizeof(int));
|
|
*(int *)commit->util = 0;
|
|
cur_depth = 0;
|
|
} else {
|
|
commit = (struct commit *)
|
|
stack.objects[--stack.nr].item;
|
|
cur_depth = *(int *)commit->util;
|
|
}
|
|
}
|
|
if (parse_commit(commit))
|
|
die("invalid commit");
|
|
commit->object.flags |= not_shallow_flag;
|
|
cur_depth++;
|
|
for (p = commit->parents, commit = NULL; p; p = p->next) {
|
|
if (!p->item->util) {
|
|
int *pointer = xmalloc(sizeof(int));
|
|
p->item->util = pointer;
|
|
*pointer = cur_depth;
|
|
} else {
|
|
int *pointer = p->item->util;
|
|
if (cur_depth >= *pointer)
|
|
continue;
|
|
*pointer = cur_depth;
|
|
}
|
|
if (cur_depth < depth) {
|
|
if (p->next)
|
|
add_object_array(&p->item->object,
|
|
NULL, &stack);
|
|
else {
|
|
commit = p->item;
|
|
cur_depth = *(int *)commit->util;
|
|
}
|
|
} else {
|
|
commit_list_insert(p->item, &result);
|
|
p->item->object.flags |= shallow_flag;
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|