static void adjust_git_path(struct strbuf *buf, int git_dir_len)
{
const char *base = buf->buf + git_dir_len;
if (git_graft_env && is_dir_file(base, "info", "grafts"))
strbuf_splice(buf, 0, buf->len,
get_graft_file(), strlen(get_graft_file()));
else if (git_index_env && !strcmp(base, "index"))
strbuf_splice(buf, 0, buf->len,
get_index_file(), strlen(get_index_file()));
else if (git_db_env && dir_prefix(base, "objects"))
replace_dir(buf, git_dir_len + 7, get_object_directory());
else if (git_common_dir_env)
update_common_dir(buf, git_dir_len);
}
static int convert_graft_file(int force)
{
const char *graft_file = get_graft_file();
FILE *fp = fopen_or_warn(graft_file, "r");
struct strbuf buf = STRBUF_INIT, err = STRBUF_INIT;
struct argv_array args = ARGV_ARRAY_INIT;
if (!fp)
return -1;
while (strbuf_getline(&buf, fp) != EOF) {
if (*buf.buf == '#')
continue;
argv_array_split(&args, buf.buf);
if (args.argc && create_graft(args.argc, args.argv, force, 1))
strbuf_addf(&err, "\n\t%s", buf.buf);
argv_array_clear(&args);
}
fclose(fp);
strbuf_release(&buf);
if (!err.len)
return unlink_or_warn(graft_file);
warning(_("could not convert the following graft(s):\n%s"), err.buf);
strbuf_release(&err);
return -1;
}
static void prepare_commit_graft(void)
{
char *graft_file = get_graft_file();
FILE *fp = fopen(graft_file, "r");
char buf[1024];
if (!fp) {
commit_graft = (struct commit_graft **) "hack";
return;
}
while (fgets(buf, sizeof(buf), fp)) {
/* The format is just "Commit Parent1 Parent2 ...\n" */
int len = strlen(buf);
int i;
struct commit_graft *graft = NULL;
if (buf[len-1] == '\n')
buf[--len] = 0;
if (buf[0] == '#')
continue;
if ((len + 1) % 41) {
bad_graft_data:
error("bad graft data: %s", buf);
free(graft);
continue;
}
i = (len + 1) / 41 - 1;
graft = xmalloc(sizeof(*graft) + 20 * i);
graft->nr_parent = i;
if (get_sha1_hex(buf, graft->sha1))
goto bad_graft_data;
for (i = 40; i < len; i += 41) {
if (buf[i] != ' ')
goto bad_graft_data;
if (get_sha1_hex(buf + i + 1, graft->parent[i/41]))
goto bad_graft_data;
}
i = commit_graft_pos(graft->sha1);
if (0 <= i) {
error("duplicate graft data: %s", buf);
free(graft);
continue;
}
i = -i - 1;
if (commit_graft_alloc <= ++commit_graft_nr) {
commit_graft_alloc = alloc_nr(commit_graft_alloc);
commit_graft = xrealloc(commit_graft,
sizeof(*commit_graft) *
commit_graft_alloc);
}
if (i < commit_graft_nr)
memmove(commit_graft + i + 1,
commit_graft + i,
(commit_graft_nr - i - 1) *
sizeof(*commit_graft));
commit_graft[i] = graft;
}
fclose(fp);
}
