int submodule_uses_worktrees(const char *path)
{
char *submodule_gitdir;
struct strbuf sb = STRBUF_INIT;
DIR *dir;
struct dirent *d;
int ret = 0;
struct repository_format format;
submodule_gitdir = git_pathdup_submodule(path, "%s", "");
if (!submodule_gitdir)
return 0;
/* The env would be set for the superproject. */
get_common_dir_noenv(&sb, submodule_gitdir);
free(submodule_gitdir);
/*
* The check below is only known to be good for repository format
* version 0 at the time of writing this code.
*/
strbuf_addstr(&sb, "/config");
read_repository_format(&format, sb.buf);
if (format.version != 0) {
strbuf_release(&sb);
return 1;
}
/* Replace config by worktrees. */
strbuf_setlen(&sb, sb.len - strlen("config"));
strbuf_addstr(&sb, "worktrees");
/* See if there is any file inside the worktrees directory. */
dir = opendir(sb.buf);
strbuf_release(&sb);
if (!dir)
return 0;
while ((d = readdir(dir)) != NULL) {
if (is_dot_or_dotdot(d->d_name))
continue;
ret = 1;
break;
}
closedir(dir);
return ret;
}
static int module_clone(int argc, const char **argv, const char *prefix)
{
const char *path = NULL, *name = NULL, *url = NULL;
const char *reference = NULL, *depth = NULL;
int quiet = 0;
FILE *submodule_dot_git;
char *sm_gitdir, *cwd, *p;
struct strbuf rel_path = STRBUF_INIT;
struct strbuf sb = STRBUF_INIT;
struct option module_clone_options[] = {
OPT_STRING(0, "prefix", &prefix,
N_("path"),
N_("alternative anchor for relative paths")),
OPT_STRING(0, "path", &path,
N_("path"),
N_("where the new submodule will be cloned to")),
OPT_STRING(0, "name", &name,
N_("string"),
N_("name of the new submodule")),
OPT_STRING(0, "url", &url,
N_("string"),
N_("url where to clone the submodule from")),
OPT_STRING(0, "reference", &reference,
N_("string"),
N_("reference repository")),
OPT_STRING(0, "depth", &depth,
N_("string"),
N_("depth for shallow clones")),
OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
"[--reference <repository>] [--name <name>] [--url <url>]"
"[--depth <depth>] [--] [<path>...]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_clone_options,
git_submodule_helper_usage, 0);
strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
sm_gitdir = strbuf_detach(&sb, NULL);
if (!file_exists(sm_gitdir)) {
if (safe_create_leading_directories_const(sm_gitdir) < 0)
die(_("could not create directory '%s'"), sm_gitdir);
if (clone_submodule(path, sm_gitdir, url, depth, reference, quiet))
die(_("clone of '%s' into submodule path '%s' failed"),
url, path);
} else {
if (safe_create_leading_directories_const(path) < 0)
die(_("could not create directory '%s'"), path);
strbuf_addf(&sb, "%s/index", sm_gitdir);
unlink_or_warn(sb.buf);
strbuf_reset(&sb);
}
/* Write a .git file in the submodule to redirect to the superproject. */
if (safe_create_leading_directories_const(path) < 0)
die(_("could not create directory '%s'"), path);
if (path && *path)
strbuf_addf(&sb, "%s/.git", path);
else
strbuf_addstr(&sb, ".git");
if (safe_create_leading_directories_const(sb.buf) < 0)
die(_("could not create leading directories of '%s'"), sb.buf);
submodule_dot_git = fopen(sb.buf, "w");
if (!submodule_dot_git)
die_errno(_("cannot open file '%s'"), sb.buf);
fprintf(submodule_dot_git, "gitdir: %s\n",
relative_path(sm_gitdir, path, &rel_path));
if (fclose(submodule_dot_git))
die(_("could not close file %s"), sb.buf);
strbuf_reset(&sb);
strbuf_reset(&rel_path);
cwd = xgetcwd();
/* Redirect the worktree of the submodule in the superproject's config */
if (!is_absolute_path(sm_gitdir)) {
strbuf_addf(&sb, "%s/%s", cwd, sm_gitdir);
free(sm_gitdir);
sm_gitdir = strbuf_detach(&sb, NULL);
}
strbuf_addf(&sb, "%s/%s", cwd, path);
p = git_pathdup_submodule(path, "config");
if (!p)
die(_("could not get submodule directory for '%s'"), path);
git_config_set_in_file(p, "core.worktree",
relative_path(sb.buf, sm_gitdir, &rel_path));
strbuf_release(&sb);
strbuf_release(&rel_path);
free(sm_gitdir);
free(cwd);
free(p);
return 0;
}
static int module_clone(int argc, const char **argv, const char *prefix)
{
const char *name = NULL, *url = NULL, *depth = NULL;
int quiet = 0;
int progress = 0;
char *p, *path = NULL, *sm_gitdir;
struct strbuf sb = STRBUF_INIT;
struct string_list reference = STRING_LIST_INIT_NODUP;
char *sm_alternate = NULL, *error_strategy = NULL;
struct option module_clone_options[] = {
OPT_STRING(0, "prefix", &prefix,
N_("path"),
N_("alternative anchor for relative paths")),
OPT_STRING(0, "path", &path,
N_("path"),
N_("where the new submodule will be cloned to")),
OPT_STRING(0, "name", &name,
N_("string"),
N_("name of the new submodule")),
OPT_STRING(0, "url", &url,
N_("string"),
N_("url where to clone the submodule from")),
OPT_STRING_LIST(0, "reference", &reference,
N_("repo"),
N_("reference repository")),
OPT_STRING(0, "depth", &depth,
N_("string"),
N_("depth for shallow clones")),
OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
OPT_BOOL(0, "progress", &progress,
N_("force cloning progress")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
"[--reference <repository>] [--name <name>] [--depth <depth>] "
"--url <url> --path <path>"),
NULL
};
argc = parse_options(argc, argv, prefix, module_clone_options,
git_submodule_helper_usage, 0);
if (argc || !url || !path || !*path)
usage_with_options(git_submodule_helper_usage,
module_clone_options);
strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
sm_gitdir = absolute_pathdup(sb.buf);
strbuf_reset(&sb);
if (!is_absolute_path(path)) {
strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path);
path = strbuf_detach(&sb, NULL);
} else
path = xstrdup(path);
if (!file_exists(sm_gitdir)) {
if (safe_create_leading_directories_const(sm_gitdir) < 0)
die(_("could not create directory '%s'"), sm_gitdir);
prepare_possible_alternates(name, &reference);
if (clone_submodule(path, sm_gitdir, url, depth, &reference,
quiet, progress))
die(_("clone of '%s' into submodule path '%s' failed"),
url, path);
} else {
if (safe_create_leading_directories_const(path) < 0)
die(_("could not create directory '%s'"), path);
strbuf_addf(&sb, "%s/index", sm_gitdir);
unlink_or_warn(sb.buf);
strbuf_reset(&sb);
}
/* Connect module worktree and git dir */
connect_work_tree_and_git_dir(path, sm_gitdir);
p = git_pathdup_submodule(path, "config");
if (!p)
die(_("could not get submodule directory for '%s'"), path);
/* setup alternateLocation and alternateErrorStrategy in the cloned submodule if needed */
git_config_get_string("submodule.alternateLocation", &sm_alternate);
if (sm_alternate)
git_config_set_in_file(p, "submodule.alternateLocation",
sm_alternate);
git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
if (error_strategy)
git_config_set_in_file(p, "submodule.alternateErrorStrategy",
error_strategy);
free(sm_alternate);
free(error_strategy);
strbuf_release(&sb);
free(sm_gitdir);
free(path);
free(p);
return 0;
}
