1 #define USE_THE_INDEX_COMPATIBILITY_MACROS
3 #include "repository.h"
6 #include "parse-options.h"
10 #include "submodule.h"
11 #include "submodule-config.h"
12 #include "string-list.h"
13 #include "run-command.h"
21 #include "object-store.h"
25 #define OPT_QUIET (1 << 0)
26 #define OPT_CACHED (1 << 1)
27 #define OPT_RECURSIVE (1 << 2)
28 #define OPT_FORCE (1 << 3)
30 typedef void (*each_submodule_fn)(const struct cache_entry *list_item,
33 static char *get_default_remote(void)
35 char *dest = NULL, *ret;
36 struct strbuf sb = STRBUF_INIT;
37 const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
40 die(_("No such ref: %s"), "HEAD");
43 if (!strcmp(refname, "HEAD"))
44 return xstrdup("origin");
46 if (!skip_prefix(refname, "refs/heads/", &refname))
47 die(_("Expecting a full ref name, got %s"), refname);
49 strbuf_addf(&sb, "branch.%s.remote", refname);
50 if (git_config_get_string(sb.buf, &dest))
51 ret = xstrdup("origin");
59 static int print_default_remote(int argc, const char **argv, const char *prefix)
64 die(_("submodule--helper print-default-remote takes no arguments"));
66 remote = get_default_remote();
68 printf("%s\n", remote);
74 static int starts_with_dot_slash(const char *str)
76 return str[0] == '.' && is_dir_sep(str[1]);
79 static int starts_with_dot_dot_slash(const char *str)
81 return str[0] == '.' && str[1] == '.' && is_dir_sep(str[2]);
85 * Returns 1 if it was the last chop before ':'.
87 static int chop_last_dir(char **remoteurl, int is_relative)
89 char *rfind = find_last_dir_sep(*remoteurl);
95 rfind = strrchr(*remoteurl, ':');
101 if (is_relative || !strcmp(".", *remoteurl))
102 die(_("cannot strip one component off url '%s'"),
106 *remoteurl = xstrdup(".");
111 * The `url` argument is the URL that navigates to the submodule origin
112 * repo. When relative, this URL is relative to the superproject origin
113 * URL repo. The `up_path` argument, if specified, is the relative
114 * path that navigates from the submodule working tree to the superproject
115 * working tree. Returns the origin URL of the submodule.
117 * Return either an absolute URL or filesystem path (if the superproject
118 * origin URL is an absolute URL or filesystem path, respectively) or a
119 * relative file system path (if the superproject origin URL is a relative
122 * When the output is a relative file system path, the path is either
123 * relative to the submodule working tree, if up_path is specified, or to
124 * the superproject working tree otherwise.
126 * NEEDSWORK: This works incorrectly on the domain and protocol part.
127 * remote_url url outcome expectation
128 * http://a.com/b ../c http://a.com/c as is
129 * http://a.com/b/ ../c http://a.com/c same as previous line, but
130 * ignore trailing slash in url
131 * http://a.com/b ../../c http://c error out
132 * http://a.com/b ../../../c http:/c error out
133 * http://a.com/b ../../../../c http:c error out
134 * http://a.com/b ../../../../../c .:c error out
135 * NEEDSWORK: Given how chop_last_dir() works, this function is broken
136 * when a local part has a colon in its path component, too.
138 static char *relative_url(const char *remote_url,
145 char *remoteurl = xstrdup(remote_url);
146 struct strbuf sb = STRBUF_INIT;
147 size_t len = strlen(remoteurl);
149 if (is_dir_sep(remoteurl[len-1]))
150 remoteurl[len-1] = '\0';
152 if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl))
157 * Prepend a './' to ensure all relative
158 * remoteurls start with './' or '../'
160 if (!starts_with_dot_slash(remoteurl) &&
161 !starts_with_dot_dot_slash(remoteurl)) {
163 strbuf_addf(&sb, "./%s", remoteurl);
165 remoteurl = strbuf_detach(&sb, NULL);
169 * When the url starts with '../', remove that and the
170 * last directory in remoteurl.
173 if (starts_with_dot_dot_slash(url)) {
175 colonsep |= chop_last_dir(&remoteurl, is_relative);
176 } else if (starts_with_dot_slash(url))
182 strbuf_addf(&sb, "%s%s%s", remoteurl, colonsep ? ":" : "/", url);
183 if (ends_with(url, "/"))
184 strbuf_setlen(&sb, sb.len - 1);
187 if (starts_with_dot_slash(sb.buf))
188 out = xstrdup(sb.buf + 2);
190 out = xstrdup(sb.buf);
193 if (!up_path || !is_relative)
196 strbuf_addf(&sb, "%s%s", up_path, out);
198 return strbuf_detach(&sb, NULL);
201 static int resolve_relative_url(int argc, const char **argv, const char *prefix)
203 char *remoteurl = NULL;
204 char *remote = get_default_remote();
205 const char *up_path = NULL;
208 struct strbuf sb = STRBUF_INIT;
210 if (argc != 2 && argc != 3)
211 die("resolve-relative-url only accepts one or two arguments");
214 strbuf_addf(&sb, "remote.%s.url", remote);
217 if (git_config_get_string(sb.buf, &remoteurl))
218 /* the repository is its own authoritative upstream */
219 remoteurl = xgetcwd();
224 res = relative_url(remoteurl, url, up_path);
231 static int resolve_relative_url_test(int argc, const char **argv, const char *prefix)
233 char *remoteurl, *res;
234 const char *up_path, *url;
237 die("resolve-relative-url-test only accepts three arguments: <up_path> <remoteurl> <url>");
240 remoteurl = xstrdup(argv[2]);
243 if (!strcmp(up_path, "(null)"))
246 res = relative_url(remoteurl, url, up_path);
253 /* the result should be freed by the caller. */
254 static char *get_submodule_displaypath(const char *path, const char *prefix)
256 const char *super_prefix = get_super_prefix();
258 if (prefix && super_prefix) {
259 BUG("cannot have prefix '%s' and superprefix '%s'",
260 prefix, super_prefix);
262 struct strbuf sb = STRBUF_INIT;
263 char *displaypath = xstrdup(relative_path(path, prefix, &sb));
266 } else if (super_prefix) {
267 return xstrfmt("%s%s", super_prefix, path);
269 return xstrdup(path);
273 static char *compute_rev_name(const char *sub_path, const char* object_id)
275 struct strbuf sb = STRBUF_INIT;
278 static const char *describe_bare[] = { NULL };
280 static const char *describe_tags[] = { "--tags", NULL };
282 static const char *describe_contains[] = { "--contains", NULL };
284 static const char *describe_all_always[] = { "--all", "--always", NULL };
286 static const char **describe_argv[] = { describe_bare, describe_tags,
288 describe_all_always, NULL };
290 for (d = describe_argv; *d; d++) {
291 struct child_process cp = CHILD_PROCESS_INIT;
292 prepare_submodule_repo_env(&cp.env_array);
297 argv_array_push(&cp.args, "describe");
298 argv_array_pushv(&cp.args, *d);
299 argv_array_push(&cp.args, object_id);
301 if (!capture_command(&cp, &sb, 0)) {
302 strbuf_strip_suffix(&sb, "\n");
303 return strbuf_detach(&sb, NULL);
312 const struct cache_entry **entries;
315 #define MODULE_LIST_INIT { NULL, 0, 0 }
317 static int module_list_compute(int argc, const char **argv,
319 struct pathspec *pathspec,
320 struct module_list *list)
323 char *ps_matched = NULL;
324 parse_pathspec(pathspec, 0,
325 PATHSPEC_PREFER_FULL,
329 ps_matched = xcalloc(pathspec->nr, 1);
331 if (read_cache() < 0)
332 die(_("index file corrupt"));
334 for (i = 0; i < active_nr; i++) {
335 const struct cache_entry *ce = active_cache[i];
337 if (!match_pathspec(&the_index, pathspec, ce->name, ce_namelen(ce),
339 !S_ISGITLINK(ce->ce_mode))
342 ALLOC_GROW(list->entries, list->nr + 1, list->alloc);
343 list->entries[list->nr++] = ce;
344 while (i + 1 < active_nr &&
345 !strcmp(ce->name, active_cache[i + 1]->name))
347 * Skip entries with the same name in different stages
348 * to make sure an entry is returned only once.
353 if (ps_matched && report_path_error(ps_matched, pathspec))
361 static void module_list_active(struct module_list *list)
364 struct module_list active_modules = MODULE_LIST_INIT;
366 for (i = 0; i < list->nr; i++) {
367 const struct cache_entry *ce = list->entries[i];
369 if (!is_submodule_active(the_repository, ce->name))
372 ALLOC_GROW(active_modules.entries,
373 active_modules.nr + 1,
374 active_modules.alloc);
375 active_modules.entries[active_modules.nr++] = ce;
379 *list = active_modules;
382 static char *get_up_path(const char *path)
385 struct strbuf sb = STRBUF_INIT;
387 for (i = count_slashes(path); i; i--)
388 strbuf_addstr(&sb, "../");
391 * Check if 'path' ends with slash or not
392 * for having the same output for dir/sub_dir
395 if (!is_dir_sep(path[strlen(path) - 1]))
396 strbuf_addstr(&sb, "../");
398 return strbuf_detach(&sb, NULL);
401 static int module_list(int argc, const char **argv, const char *prefix)
404 struct pathspec pathspec;
405 struct module_list list = MODULE_LIST_INIT;
407 struct option module_list_options[] = {
408 OPT_STRING(0, "prefix", &prefix,
410 N_("alternative anchor for relative paths")),
414 const char *const git_submodule_helper_usage[] = {
415 N_("git submodule--helper list [--prefix=<path>] [<path>...]"),
419 argc = parse_options(argc, argv, prefix, module_list_options,
420 git_submodule_helper_usage, 0);
422 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
425 for (i = 0; i < list.nr; i++) {
426 const struct cache_entry *ce = list.entries[i];
429 printf("%06o %s U\t", ce->ce_mode, oid_to_hex(&null_oid));
431 printf("%06o %s %d\t", ce->ce_mode,
432 oid_to_hex(&ce->oid), ce_stage(ce));
434 fprintf(stdout, "%s\n", ce->name);
439 static void for_each_listed_submodule(const struct module_list *list,
440 each_submodule_fn fn, void *cb_data)
443 for (i = 0; i < list->nr; i++)
444 fn(list->entries[i], cb_data);
454 #define FOREACH_CB_INIT { 0 }
456 static void runcommand_in_submodule_cb(const struct cache_entry *list_item,
459 struct foreach_cb *info = cb_data;
460 const char *path = list_item->name;
461 const struct object_id *ce_oid = &list_item->oid;
463 const struct submodule *sub;
464 struct child_process cp = CHILD_PROCESS_INIT;
467 displaypath = get_submodule_displaypath(path, info->prefix);
469 sub = submodule_from_path(the_repository, &null_oid, path);
472 die(_("No url found for submodule path '%s' in .gitmodules"),
475 if (!is_submodule_populated_gently(path, NULL))
478 prepare_submodule_repo_env(&cp.env_array);
481 * For the purpose of executing <command> in the submodule,
482 * separate shell is used for the purpose of running the
489 * NEEDSWORK: the command currently has access to the variables $name,
490 * $sm_path, $displaypath, $sha1 and $toplevel only when the command
491 * contains a single argument. This is done for maintaining a faithful
492 * translation from shell script.
494 if (info->argc == 1) {
495 char *toplevel = xgetcwd();
496 struct strbuf sb = STRBUF_INIT;
498 argv_array_pushf(&cp.env_array, "name=%s", sub->name);
499 argv_array_pushf(&cp.env_array, "sm_path=%s", path);
500 argv_array_pushf(&cp.env_array, "displaypath=%s", displaypath);
501 argv_array_pushf(&cp.env_array, "sha1=%s",
503 argv_array_pushf(&cp.env_array, "toplevel=%s", toplevel);
506 * Since the path variable was accessible from the script
507 * before porting, it is also made available after porting.
508 * The environment variable "PATH" has a very special purpose
509 * on windows. And since environment variables are
510 * case-insensitive in windows, it interferes with the
511 * existing PATH variable. Hence, to avoid that, we expose
512 * path via the args argv_array and not via env_array.
514 sq_quote_buf(&sb, path);
515 argv_array_pushf(&cp.args, "path=%s; %s",
516 sb.buf, info->argv[0]);
520 argv_array_pushv(&cp.args, info->argv);
524 printf(_("Entering '%s'\n"), displaypath);
526 if (info->argv[0] && run_command(&cp))
527 die(_("run_command returned non-zero status for %s\n."),
530 if (info->recursive) {
531 struct child_process cpr = CHILD_PROCESS_INIT;
535 prepare_submodule_repo_env(&cpr.env_array);
537 argv_array_pushl(&cpr.args, "--super-prefix", NULL);
538 argv_array_pushf(&cpr.args, "%s/", displaypath);
539 argv_array_pushl(&cpr.args, "submodule--helper", "foreach", "--recursive",
543 argv_array_push(&cpr.args, "--quiet");
545 argv_array_push(&cpr.args, "--");
546 argv_array_pushv(&cpr.args, info->argv);
548 if (run_command(&cpr))
549 die(_("run_command returned non-zero status while "
550 "recursing in the nested submodules of %s\n."),
558 static int module_foreach(int argc, const char **argv, const char *prefix)
560 struct foreach_cb info = FOREACH_CB_INIT;
561 struct pathspec pathspec;
562 struct module_list list = MODULE_LIST_INIT;
564 struct option module_foreach_options[] = {
565 OPT__QUIET(&info.quiet, N_("Suppress output of entering each submodule command")),
566 OPT_BOOL(0, "recursive", &info.recursive,
567 N_("Recurse into nested submodules")),
571 const char *const git_submodule_helper_usage[] = {
572 N_("git submodule--helper foreach [--quiet] [--recursive] [--] <command>"),
576 argc = parse_options(argc, argv, prefix, module_foreach_options,
577 git_submodule_helper_usage, 0);
579 if (module_list_compute(0, NULL, prefix, &pathspec, &list) < 0)
584 info.prefix = prefix;
586 for_each_listed_submodule(&list, runcommand_in_submodule_cb, &info);
591 static char *compute_submodule_clone_url(const char *rel_url)
593 char *remoteurl, *relurl;
594 char *remote = get_default_remote();
595 struct strbuf remotesb = STRBUF_INIT;
597 strbuf_addf(&remotesb, "remote.%s.url", remote);
598 if (git_config_get_string(remotesb.buf, &remoteurl)) {
599 warning(_("could not look up configuration '%s'. Assuming this repository is its own authoritative upstream."), remotesb.buf);
600 remoteurl = xgetcwd();
602 relurl = relative_url(remoteurl, rel_url, NULL);
606 strbuf_release(&remotesb);
616 #define INIT_CB_INIT { NULL, 0 }
618 static void init_submodule(const char *path, const char *prefix,
621 const struct submodule *sub;
622 struct strbuf sb = STRBUF_INIT;
623 char *upd = NULL, *url = NULL, *displaypath;
625 displaypath = get_submodule_displaypath(path, prefix);
627 sub = submodule_from_path(the_repository, &null_oid, path);
630 die(_("No url found for submodule path '%s' in .gitmodules"),
634 * NEEDSWORK: In a multi-working-tree world, this needs to be
635 * set in the per-worktree config.
637 * Set active flag for the submodule being initialized
639 if (!is_submodule_active(the_repository, path)) {
640 strbuf_addf(&sb, "submodule.%s.active", sub->name);
641 git_config_set_gently(sb.buf, "true");
646 * Copy url setting when it is not set yet.
647 * To look up the url in .git/config, we must not fall back to
648 * .gitmodules, so look it up directly.
650 strbuf_addf(&sb, "submodule.%s.url", sub->name);
651 if (git_config_get_string(sb.buf, &url)) {
653 die(_("No url found for submodule path '%s' in .gitmodules"),
656 url = xstrdup(sub->url);
658 /* Possibly a url relative to parent */
659 if (starts_with_dot_dot_slash(url) ||
660 starts_with_dot_slash(url)) {
662 url = compute_submodule_clone_url(oldurl);
666 if (git_config_set_gently(sb.buf, url))
667 die(_("Failed to register url for submodule path '%s'"),
669 if (!(flags & OPT_QUIET))
671 _("Submodule '%s' (%s) registered for path '%s'\n"),
672 sub->name, url, displaypath);
676 /* Copy "update" setting when it is not set yet */
677 strbuf_addf(&sb, "submodule.%s.update", sub->name);
678 if (git_config_get_string(sb.buf, &upd) &&
679 sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) {
680 if (sub->update_strategy.type == SM_UPDATE_COMMAND) {
681 fprintf(stderr, _("warning: command update mode suggested for submodule '%s'\n"),
683 upd = xstrdup("none");
685 upd = xstrdup(submodule_strategy_to_string(&sub->update_strategy));
687 if (git_config_set_gently(sb.buf, upd))
688 die(_("Failed to register update mode for submodule path '%s'"), displaypath);
696 static void init_submodule_cb(const struct cache_entry *list_item, void *cb_data)
698 struct init_cb *info = cb_data;
699 init_submodule(list_item->name, info->prefix, info->flags);
702 static int module_init(int argc, const char **argv, const char *prefix)
704 struct init_cb info = INIT_CB_INIT;
705 struct pathspec pathspec;
706 struct module_list list = MODULE_LIST_INIT;
709 struct option module_init_options[] = {
710 OPT__QUIET(&quiet, N_("Suppress output for initializing a submodule")),
714 const char *const git_submodule_helper_usage[] = {
715 N_("git submodule--helper init [<options>] [<path>]"),
719 argc = parse_options(argc, argv, prefix, module_init_options,
720 git_submodule_helper_usage, 0);
722 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
726 * If there are no path args and submodule.active is set then,
727 * by default, only initialize 'active' modules.
729 if (!argc && git_config_get_value_multi("submodule.active"))
730 module_list_active(&list);
732 info.prefix = prefix;
734 info.flags |= OPT_QUIET;
736 for_each_listed_submodule(&list, init_submodule_cb, &info);
746 #define STATUS_CB_INIT { NULL, 0 }
748 static void print_status(unsigned int flags, char state, const char *path,
749 const struct object_id *oid, const char *displaypath)
751 if (flags & OPT_QUIET)
754 printf("%c%s %s", state, oid_to_hex(oid), displaypath);
756 if (state == ' ' || state == '+') {
757 const char *name = compute_rev_name(path, oid_to_hex(oid));
760 printf(" (%s)", name);
766 static int handle_submodule_head_ref(const char *refname,
767 const struct object_id *oid, int flags,
770 struct object_id *output = cb_data;
777 static void status_submodule(const char *path, const struct object_id *ce_oid,
778 unsigned int ce_flags, const char *prefix,
782 struct argv_array diff_files_args = ARGV_ARRAY_INIT;
784 int diff_files_result;
785 struct strbuf buf = STRBUF_INIT;
788 if (!submodule_from_path(the_repository, &null_oid, path))
789 die(_("no submodule mapping found in .gitmodules for path '%s'"),
792 displaypath = get_submodule_displaypath(path, prefix);
794 if ((CE_STAGEMASK & ce_flags) >> CE_STAGESHIFT) {
795 print_status(flags, 'U', path, &null_oid, displaypath);
799 strbuf_addf(&buf, "%s/.git", path);
800 git_dir = read_gitfile(buf.buf);
804 if (!is_submodule_active(the_repository, path) ||
805 !is_git_directory(git_dir)) {
806 print_status(flags, '-', path, ce_oid, displaypath);
807 strbuf_release(&buf);
810 strbuf_release(&buf);
812 argv_array_pushl(&diff_files_args, "diff-files",
813 "--ignore-submodules=dirty", "--quiet", "--",
816 git_config(git_diff_basic_config, NULL);
818 repo_init_revisions(the_repository, &rev, NULL);
820 diff_files_args.argc = setup_revisions(diff_files_args.argc,
821 diff_files_args.argv,
823 diff_files_result = run_diff_files(&rev, 0);
825 if (!diff_result_code(&rev.diffopt, diff_files_result)) {
826 print_status(flags, ' ', path, ce_oid,
828 } else if (!(flags & OPT_CACHED)) {
829 struct object_id oid;
830 struct ref_store *refs = get_submodule_ref_store(path);
833 print_status(flags, '-', path, ce_oid, displaypath);
836 if (refs_head_ref(refs, handle_submodule_head_ref, &oid))
837 die(_("could not resolve HEAD ref inside the "
838 "submodule '%s'"), path);
840 print_status(flags, '+', path, &oid, displaypath);
842 print_status(flags, '+', path, ce_oid, displaypath);
845 if (flags & OPT_RECURSIVE) {
846 struct child_process cpr = CHILD_PROCESS_INIT;
850 prepare_submodule_repo_env(&cpr.env_array);
852 argv_array_push(&cpr.args, "--super-prefix");
853 argv_array_pushf(&cpr.args, "%s/", displaypath);
854 argv_array_pushl(&cpr.args, "submodule--helper", "status",
855 "--recursive", NULL);
857 if (flags & OPT_CACHED)
858 argv_array_push(&cpr.args, "--cached");
860 if (flags & OPT_QUIET)
861 argv_array_push(&cpr.args, "--quiet");
863 if (run_command(&cpr))
864 die(_("failed to recurse into submodule '%s'"), path);
868 argv_array_clear(&diff_files_args);
872 static void status_submodule_cb(const struct cache_entry *list_item,
875 struct status_cb *info = cb_data;
876 status_submodule(list_item->name, &list_item->oid, list_item->ce_flags,
877 info->prefix, info->flags);
880 static int module_status(int argc, const char **argv, const char *prefix)
882 struct status_cb info = STATUS_CB_INIT;
883 struct pathspec pathspec;
884 struct module_list list = MODULE_LIST_INIT;
887 struct option module_status_options[] = {
888 OPT__QUIET(&quiet, N_("Suppress submodule status output")),
889 OPT_BIT(0, "cached", &info.flags, N_("Use commit stored in the index instead of the one stored in the submodule HEAD"), OPT_CACHED),
890 OPT_BIT(0, "recursive", &info.flags, N_("recurse into nested submodules"), OPT_RECURSIVE),
894 const char *const git_submodule_helper_usage[] = {
895 N_("git submodule status [--quiet] [--cached] [--recursive] [<path>...]"),
899 argc = parse_options(argc, argv, prefix, module_status_options,
900 git_submodule_helper_usage, 0);
902 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
905 info.prefix = prefix;
907 info.flags |= OPT_QUIET;
909 for_each_listed_submodule(&list, status_submodule_cb, &info);
914 static int module_name(int argc, const char **argv, const char *prefix)
916 const struct submodule *sub;
919 usage(_("git submodule--helper name <path>"));
921 sub = submodule_from_path(the_repository, &null_oid, argv[1]);
924 die(_("no submodule mapping found in .gitmodules for path '%s'"),
927 printf("%s\n", sub->name);
937 #define SYNC_CB_INIT { NULL, 0 }
939 static void sync_submodule(const char *path, const char *prefix,
942 const struct submodule *sub;
943 char *remote_key = NULL;
944 char *sub_origin_url, *super_config_url, *displaypath;
945 struct strbuf sb = STRBUF_INIT;
946 struct child_process cp = CHILD_PROCESS_INIT;
947 char *sub_config_path = NULL;
949 if (!is_submodule_active(the_repository, path))
952 sub = submodule_from_path(the_repository, &null_oid, path);
954 if (sub && sub->url) {
955 if (starts_with_dot_dot_slash(sub->url) ||
956 starts_with_dot_slash(sub->url)) {
957 char *remote_url, *up_path;
958 char *remote = get_default_remote();
959 strbuf_addf(&sb, "remote.%s.url", remote);
961 if (git_config_get_string(sb.buf, &remote_url))
962 remote_url = xgetcwd();
964 up_path = get_up_path(path);
965 sub_origin_url = relative_url(remote_url, sub->url, up_path);
966 super_config_url = relative_url(remote_url, sub->url, NULL);
972 sub_origin_url = xstrdup(sub->url);
973 super_config_url = xstrdup(sub->url);
976 sub_origin_url = xstrdup("");
977 super_config_url = xstrdup("");
980 displaypath = get_submodule_displaypath(path, prefix);
982 if (!(flags & OPT_QUIET))
983 printf(_("Synchronizing submodule url for '%s'\n"),
987 strbuf_addf(&sb, "submodule.%s.url", sub->name);
988 if (git_config_set_gently(sb.buf, super_config_url))
989 die(_("failed to register url for submodule path '%s'"),
992 if (!is_submodule_populated_gently(path, NULL))
995 prepare_submodule_repo_env(&cp.env_array);
998 argv_array_pushl(&cp.args, "submodule--helper",
999 "print-default-remote", NULL);
1002 if (capture_command(&cp, &sb, 0))
1003 die(_("failed to get the default remote for submodule '%s'"),
1006 strbuf_strip_suffix(&sb, "\n");
1007 remote_key = xstrfmt("remote.%s.url", sb.buf);
1010 submodule_to_gitdir(&sb, path);
1011 strbuf_addstr(&sb, "/config");
1013 if (git_config_set_in_file_gently(sb.buf, remote_key, sub_origin_url))
1014 die(_("failed to update remote for submodule '%s'"),
1017 if (flags & OPT_RECURSIVE) {
1018 struct child_process cpr = CHILD_PROCESS_INIT;
1022 prepare_submodule_repo_env(&cpr.env_array);
1024 argv_array_push(&cpr.args, "--super-prefix");
1025 argv_array_pushf(&cpr.args, "%s/", displaypath);
1026 argv_array_pushl(&cpr.args, "submodule--helper", "sync",
1027 "--recursive", NULL);
1029 if (flags & OPT_QUIET)
1030 argv_array_push(&cpr.args, "--quiet");
1032 if (run_command(&cpr))
1033 die(_("failed to recurse into submodule '%s'"),
1038 free(super_config_url);
1039 free(sub_origin_url);
1040 strbuf_release(&sb);
1043 free(sub_config_path);
1046 static void sync_submodule_cb(const struct cache_entry *list_item, void *cb_data)
1048 struct sync_cb *info = cb_data;
1049 sync_submodule(list_item->name, info->prefix, info->flags);
1052 static int module_sync(int argc, const char **argv, const char *prefix)
1054 struct sync_cb info = SYNC_CB_INIT;
1055 struct pathspec pathspec;
1056 struct module_list list = MODULE_LIST_INIT;
1060 struct option module_sync_options[] = {
1061 OPT__QUIET(&quiet, N_("Suppress output of synchronizing submodule url")),
1062 OPT_BOOL(0, "recursive", &recursive,
1063 N_("Recurse into nested submodules")),
1067 const char *const git_submodule_helper_usage[] = {
1068 N_("git submodule--helper sync [--quiet] [--recursive] [<path>]"),
1072 argc = parse_options(argc, argv, prefix, module_sync_options,
1073 git_submodule_helper_usage, 0);
1075 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
1078 info.prefix = prefix;
1080 info.flags |= OPT_QUIET;
1082 info.flags |= OPT_RECURSIVE;
1084 for_each_listed_submodule(&list, sync_submodule_cb, &info);
1093 #define DEINIT_CB_INIT { NULL, 0 }
1095 static void deinit_submodule(const char *path, const char *prefix,
1098 const struct submodule *sub;
1099 char *displaypath = NULL;
1100 struct child_process cp_config = CHILD_PROCESS_INIT;
1101 struct strbuf sb_config = STRBUF_INIT;
1102 char *sub_git_dir = xstrfmt("%s/.git", path);
1104 sub = submodule_from_path(the_repository, &null_oid, path);
1106 if (!sub || !sub->name)
1109 displaypath = get_submodule_displaypath(path, prefix);
1111 /* remove the submodule work tree (unless the user already did it) */
1112 if (is_directory(path)) {
1113 struct strbuf sb_rm = STRBUF_INIT;
1117 * protect submodules containing a .git directory
1118 * NEEDSWORK: instead of dying, automatically call
1119 * absorbgitdirs and (possibly) warn.
1121 if (is_directory(sub_git_dir))
1122 die(_("Submodule work tree '%s' contains a .git "
1123 "directory (use 'rm -rf' if you really want "
1124 "to remove it including all of its history)"),
1127 if (!(flags & OPT_FORCE)) {
1128 struct child_process cp_rm = CHILD_PROCESS_INIT;
1130 argv_array_pushl(&cp_rm.args, "rm", "-qn",
1133 if (run_command(&cp_rm))
1134 die(_("Submodule work tree '%s' contains local "
1135 "modifications; use '-f' to discard them"),
1139 strbuf_addstr(&sb_rm, path);
1141 if (!remove_dir_recursively(&sb_rm, 0))
1142 format = _("Cleared directory '%s'\n");
1144 format = _("Could not remove submodule work tree '%s'\n");
1146 if (!(flags & OPT_QUIET))
1147 printf(format, displaypath);
1149 submodule_unset_core_worktree(sub);
1151 strbuf_release(&sb_rm);
1154 if (mkdir(path, 0777))
1155 printf(_("could not create empty submodule directory %s"),
1158 cp_config.git_cmd = 1;
1159 argv_array_pushl(&cp_config.args, "config", "--get-regexp", NULL);
1160 argv_array_pushf(&cp_config.args, "submodule.%s\\.", sub->name);
1162 /* remove the .git/config entries (unless the user already did it) */
1163 if (!capture_command(&cp_config, &sb_config, 0) && sb_config.len) {
1164 char *sub_key = xstrfmt("submodule.%s", sub->name);
1166 * remove the whole section so we have a clean state when
1167 * the user later decides to init this submodule again
1169 git_config_rename_section_in_file(NULL, sub_key, NULL);
1170 if (!(flags & OPT_QUIET))
1171 printf(_("Submodule '%s' (%s) unregistered for path '%s'\n"),
1172 sub->name, sub->url, displaypath);
1179 strbuf_release(&sb_config);
1182 static void deinit_submodule_cb(const struct cache_entry *list_item,
1185 struct deinit_cb *info = cb_data;
1186 deinit_submodule(list_item->name, info->prefix, info->flags);
1189 static int module_deinit(int argc, const char **argv, const char *prefix)
1191 struct deinit_cb info = DEINIT_CB_INIT;
1192 struct pathspec pathspec;
1193 struct module_list list = MODULE_LIST_INIT;
1198 struct option module_deinit_options[] = {
1199 OPT__QUIET(&quiet, N_("Suppress submodule status output")),
1200 OPT__FORCE(&force, N_("Remove submodule working trees even if they contain local changes"), 0),
1201 OPT_BOOL(0, "all", &all, N_("Unregister all submodules")),
1205 const char *const git_submodule_helper_usage[] = {
1206 N_("git submodule deinit [--quiet] [-f | --force] [--all | [--] [<path>...]]"),
1210 argc = parse_options(argc, argv, prefix, module_deinit_options,
1211 git_submodule_helper_usage, 0);
1214 error("pathspec and --all are incompatible");
1215 usage_with_options(git_submodule_helper_usage,
1216 module_deinit_options);
1220 die(_("Use '--all' if you really want to deinitialize all submodules"));
1222 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
1225 info.prefix = prefix;
1227 info.flags |= OPT_QUIET;
1229 info.flags |= OPT_FORCE;
1231 for_each_listed_submodule(&list, deinit_submodule_cb, &info);
1236 static int clone_submodule(const char *path, const char *gitdir, const char *url,
1237 const char *depth, struct string_list *reference, int dissociate,
1238 int quiet, int progress, int single_branch)
1240 struct child_process cp = CHILD_PROCESS_INIT;
1242 argv_array_push(&cp.args, "clone");
1243 argv_array_push(&cp.args, "--no-checkout");
1245 argv_array_push(&cp.args, "--quiet");
1247 argv_array_push(&cp.args, "--progress");
1248 if (depth && *depth)
1249 argv_array_pushl(&cp.args, "--depth", depth, NULL);
1250 if (reference->nr) {
1251 struct string_list_item *item;
1252 for_each_string_list_item(item, reference)
1253 argv_array_pushl(&cp.args, "--reference",
1254 item->string, NULL);
1257 argv_array_push(&cp.args, "--dissociate");
1258 if (gitdir && *gitdir)
1259 argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL);
1260 if (single_branch >= 0)
1261 argv_array_push(&cp.args, single_branch ?
1263 "--no-single-branch");
1265 argv_array_push(&cp.args, "--");
1266 argv_array_push(&cp.args, url);
1267 argv_array_push(&cp.args, path);
1270 prepare_submodule_repo_env(&cp.env_array);
1273 return run_command(&cp);
1276 struct submodule_alternate_setup {
1277 const char *submodule_name;
1278 enum SUBMODULE_ALTERNATE_ERROR_MODE {
1279 SUBMODULE_ALTERNATE_ERROR_DIE,
1280 SUBMODULE_ALTERNATE_ERROR_INFO,
1281 SUBMODULE_ALTERNATE_ERROR_IGNORE
1283 struct string_list *reference;
1285 #define SUBMODULE_ALTERNATE_SETUP_INIT { NULL, \
1286 SUBMODULE_ALTERNATE_ERROR_IGNORE, NULL }
1288 static const char alternate_error_advice[] = N_(
1289 "An alternate computed from a superproject's alternate is invalid.\n"
1290 "To allow Git to clone without an alternate in such a case, set\n"
1291 "submodule.alternateErrorStrategy to 'info' or, equivalently, clone with\n"
1292 "'--reference-if-able' instead of '--reference'."
1295 static int add_possible_reference_from_superproject(
1296 struct object_directory *odb, void *sas_cb)
1298 struct submodule_alternate_setup *sas = sas_cb;
1302 * If the alternate object store is another repository, try the
1303 * standard layout with .git/(modules/<name>)+/objects
1305 if (strip_suffix(odb->path, "/objects", &len)) {
1307 struct strbuf sb = STRBUF_INIT;
1308 struct strbuf err = STRBUF_INIT;
1309 strbuf_add(&sb, odb->path, len);
1312 * We need to end the new path with '/' to mark it as a dir,
1313 * otherwise a submodule name containing '/' will be broken
1314 * as the last part of a missing submodule reference would
1315 * be taken as a file name.
1317 strbuf_addf(&sb, "/modules/%s/", sas->submodule_name);
1319 sm_alternate = compute_alternate_path(sb.buf, &err);
1321 string_list_append(sas->reference, xstrdup(sb.buf));
1324 switch (sas->error_mode) {
1325 case SUBMODULE_ALTERNATE_ERROR_DIE:
1326 if (advice_submodule_alternate_error_strategy_die)
1327 advise(_(alternate_error_advice));
1328 die(_("submodule '%s' cannot add alternate: %s"),
1329 sas->submodule_name, err.buf);
1330 case SUBMODULE_ALTERNATE_ERROR_INFO:
1331 fprintf_ln(stderr, _("submodule '%s' cannot add alternate: %s"),
1332 sas->submodule_name, err.buf);
1333 case SUBMODULE_ALTERNATE_ERROR_IGNORE:
1337 strbuf_release(&sb);
1343 static void prepare_possible_alternates(const char *sm_name,
1344 struct string_list *reference)
1346 char *sm_alternate = NULL, *error_strategy = NULL;
1347 struct submodule_alternate_setup sas = SUBMODULE_ALTERNATE_SETUP_INIT;
1349 git_config_get_string("submodule.alternateLocation", &sm_alternate);
1353 git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
1355 if (!error_strategy)
1356 error_strategy = xstrdup("die");
1358 sas.submodule_name = sm_name;
1359 sas.reference = reference;
1360 if (!strcmp(error_strategy, "die"))
1361 sas.error_mode = SUBMODULE_ALTERNATE_ERROR_DIE;
1362 else if (!strcmp(error_strategy, "info"))
1363 sas.error_mode = SUBMODULE_ALTERNATE_ERROR_INFO;
1364 else if (!strcmp(error_strategy, "ignore"))
1365 sas.error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE;
1367 die(_("Value '%s' for submodule.alternateErrorStrategy is not recognized"), error_strategy);
1369 if (!strcmp(sm_alternate, "superproject"))
1370 foreach_alt_odb(add_possible_reference_from_superproject, &sas);
1371 else if (!strcmp(sm_alternate, "no"))
1374 die(_("Value '%s' for submodule.alternateLocation is not recognized"), sm_alternate);
1377 free(error_strategy);
1380 static int module_clone(int argc, const char **argv, const char *prefix)
1382 const char *name = NULL, *url = NULL, *depth = NULL;
1385 char *p, *path = NULL, *sm_gitdir;
1386 struct strbuf sb = STRBUF_INIT;
1387 struct string_list reference = STRING_LIST_INIT_NODUP;
1388 int dissociate = 0, require_init = 0;
1389 char *sm_alternate = NULL, *error_strategy = NULL;
1390 int single_branch = -1;
1392 struct option module_clone_options[] = {
1393 OPT_STRING(0, "prefix", &prefix,
1395 N_("alternative anchor for relative paths")),
1396 OPT_STRING(0, "path", &path,
1398 N_("where the new submodule will be cloned to")),
1399 OPT_STRING(0, "name", &name,
1401 N_("name of the new submodule")),
1402 OPT_STRING(0, "url", &url,
1404 N_("url where to clone the submodule from")),
1405 OPT_STRING_LIST(0, "reference", &reference,
1407 N_("reference repository")),
1408 OPT_BOOL(0, "dissociate", &dissociate,
1409 N_("use --reference only while cloning")),
1410 OPT_STRING(0, "depth", &depth,
1412 N_("depth for shallow clones")),
1413 OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
1414 OPT_BOOL(0, "progress", &progress,
1415 N_("force cloning progress")),
1416 OPT_BOOL(0, "require-init", &require_init,
1417 N_("disallow cloning into non-empty directory")),
1418 OPT_BOOL(0, "single-branch", &single_branch,
1419 N_("clone only one branch, HEAD or --branch")),
1423 const char *const git_submodule_helper_usage[] = {
1424 N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
1425 "[--reference <repository>] [--name <name>] [--depth <depth>] "
1426 "[--single-branch] "
1427 "--url <url> --path <path>"),
1431 argc = parse_options(argc, argv, prefix, module_clone_options,
1432 git_submodule_helper_usage, 0);
1434 if (argc || !url || !path || !*path)
1435 usage_with_options(git_submodule_helper_usage,
1436 module_clone_options);
1438 strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
1439 sm_gitdir = absolute_pathdup(sb.buf);
1442 if (!is_absolute_path(path)) {
1443 strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path);
1444 path = strbuf_detach(&sb, NULL);
1446 path = xstrdup(path);
1448 if (validate_submodule_git_dir(sm_gitdir, name) < 0)
1449 die(_("refusing to create/use '%s' in another submodule's "
1450 "git dir"), sm_gitdir);
1452 if (!file_exists(sm_gitdir)) {
1453 if (safe_create_leading_directories_const(sm_gitdir) < 0)
1454 die(_("could not create directory '%s'"), sm_gitdir);
1456 prepare_possible_alternates(name, &reference);
1458 if (clone_submodule(path, sm_gitdir, url, depth, &reference, dissociate,
1459 quiet, progress, single_branch))
1460 die(_("clone of '%s' into submodule path '%s' failed"),
1463 if (require_init && !access(path, X_OK) && !is_empty_dir(path))
1464 die(_("directory not empty: '%s'"), path);
1465 if (safe_create_leading_directories_const(path) < 0)
1466 die(_("could not create directory '%s'"), path);
1467 strbuf_addf(&sb, "%s/index", sm_gitdir);
1468 unlink_or_warn(sb.buf);
1472 connect_work_tree_and_git_dir(path, sm_gitdir, 0);
1474 p = git_pathdup_submodule(path, "config");
1476 die(_("could not get submodule directory for '%s'"), path);
1478 /* setup alternateLocation and alternateErrorStrategy in the cloned submodule if needed */
1479 git_config_get_string("submodule.alternateLocation", &sm_alternate);
1481 git_config_set_in_file(p, "submodule.alternateLocation",
1483 git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
1485 git_config_set_in_file(p, "submodule.alternateErrorStrategy",
1489 free(error_strategy);
1491 strbuf_release(&sb);
1498 static void determine_submodule_update_strategy(struct repository *r,
1502 struct submodule_update_strategy *out)
1504 const struct submodule *sub = submodule_from_path(r, &null_oid, path);
1508 key = xstrfmt("submodule.%s.update", sub->name);
1511 if (parse_submodule_update_strategy(update, out) < 0)
1512 die(_("Invalid update mode '%s' for submodule path '%s'"),
1514 } else if (!repo_config_get_string_const(r, key, &val)) {
1515 if (parse_submodule_update_strategy(val, out) < 0)
1516 die(_("Invalid update mode '%s' configured for submodule path '%s'"),
1518 } else if (sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) {
1519 if (sub->update_strategy.type == SM_UPDATE_COMMAND)
1520 BUG("how did we read update = !command from .gitmodules?");
1521 out->type = sub->update_strategy.type;
1522 out->command = sub->update_strategy.command;
1524 out->type = SM_UPDATE_CHECKOUT;
1527 (out->type == SM_UPDATE_MERGE ||
1528 out->type == SM_UPDATE_REBASE ||
1529 out->type == SM_UPDATE_NONE))
1530 out->type = SM_UPDATE_CHECKOUT;
1535 static int module_update_module_mode(int argc, const char **argv, const char *prefix)
1537 const char *path, *update = NULL;
1539 struct submodule_update_strategy update_strategy = { .type = SM_UPDATE_CHECKOUT };
1541 if (argc < 3 || argc > 4)
1542 die("submodule--helper update-module-clone expects <just-cloned> <path> [<update>]");
1544 just_cloned = git_config_int("just_cloned", argv[1]);
1550 determine_submodule_update_strategy(the_repository,
1551 just_cloned, path, update,
1553 fputs(submodule_strategy_to_string(&update_strategy), stdout);
1558 struct update_clone_data {
1559 const struct submodule *sub;
1560 struct object_id oid;
1561 unsigned just_cloned;
1564 struct submodule_update_clone {
1565 /* index into 'list', the list of submodules to look into for cloning */
1567 struct module_list list;
1568 unsigned warn_if_uninitialized : 1;
1570 /* update parameter passed via commandline */
1571 struct submodule_update_strategy update;
1573 /* configuration parameters which are passed on to the children */
1576 int recommend_shallow;
1577 struct string_list references;
1579 unsigned require_init;
1581 const char *recursive_prefix;
1585 /* to be consumed by git-submodule.sh */
1586 struct update_clone_data *update_clone;
1587 int update_clone_nr; int update_clone_alloc;
1589 /* If we want to stop as fast as possible and return an error */
1590 unsigned quickstop : 1;
1592 /* failed clones to be retried again */
1593 const struct cache_entry **failed_clones;
1594 int failed_clones_nr, failed_clones_alloc;
1598 #define SUBMODULE_UPDATE_CLONE_INIT { \
1599 .list = MODULE_LIST_INIT, \
1600 .update = SUBMODULE_UPDATE_STRATEGY_INIT, \
1601 .recommend_shallow = -1, \
1602 .references = STRING_LIST_INIT_DUP, \
1603 .single_branch = -1, \
1608 static void next_submodule_warn_missing(struct submodule_update_clone *suc,
1609 struct strbuf *out, const char *displaypath)
1612 * Only mention uninitialized submodules when their
1613 * paths have been specified.
1615 if (suc->warn_if_uninitialized) {
1617 _("Submodule path '%s' not initialized"),
1619 strbuf_addch(out, '\n');
1621 _("Maybe you want to use 'update --init'?"));
1622 strbuf_addch(out, '\n');
1627 * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
1628 * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise.
1630 static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
1631 struct child_process *child,
1632 struct submodule_update_clone *suc,
1635 const struct submodule *sub = NULL;
1636 const char *url = NULL;
1637 const char *update_string;
1638 enum submodule_update_type update_type;
1640 struct strbuf displaypath_sb = STRBUF_INIT;
1641 struct strbuf sb = STRBUF_INIT;
1642 const char *displaypath = NULL;
1643 int needs_cloning = 0;
1644 int need_free_url = 0;
1647 if (suc->recursive_prefix)
1648 strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
1650 strbuf_addstr(&sb, ce->name);
1651 strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
1652 strbuf_addch(out, '\n');
1656 sub = submodule_from_path(the_repository, &null_oid, ce->name);
1658 if (suc->recursive_prefix)
1659 displaypath = relative_path(suc->recursive_prefix,
1660 ce->name, &displaypath_sb);
1662 displaypath = ce->name;
1665 next_submodule_warn_missing(suc, out, displaypath);
1669 key = xstrfmt("submodule.%s.update", sub->name);
1670 if (!repo_config_get_string_const(the_repository, key, &update_string)) {
1671 update_type = parse_submodule_update_type(update_string);
1673 update_type = sub->update_strategy.type;
1677 if (suc->update.type == SM_UPDATE_NONE
1678 || (suc->update.type == SM_UPDATE_UNSPECIFIED
1679 && update_type == SM_UPDATE_NONE)) {
1680 strbuf_addf(out, _("Skipping submodule '%s'"), displaypath);
1681 strbuf_addch(out, '\n');
1685 /* Check if the submodule has been initialized. */
1686 if (!is_submodule_active(the_repository, ce->name)) {
1687 next_submodule_warn_missing(suc, out, displaypath);
1692 strbuf_addf(&sb, "submodule.%s.url", sub->name);
1693 if (repo_config_get_string_const(the_repository, sb.buf, &url)) {
1694 if (starts_with_dot_slash(sub->url) ||
1695 starts_with_dot_dot_slash(sub->url)) {
1696 url = compute_submodule_clone_url(sub->url);
1703 strbuf_addf(&sb, "%s/.git", ce->name);
1704 needs_cloning = !file_exists(sb.buf);
1706 ALLOC_GROW(suc->update_clone, suc->update_clone_nr + 1,
1707 suc->update_clone_alloc);
1708 oidcpy(&suc->update_clone[suc->update_clone_nr].oid, &ce->oid);
1709 suc->update_clone[suc->update_clone_nr].just_cloned = needs_cloning;
1710 suc->update_clone[suc->update_clone_nr].sub = sub;
1711 suc->update_clone_nr++;
1717 child->no_stdin = 1;
1718 child->stdout_to_stderr = 1;
1720 argv_array_push(&child->args, "submodule--helper");
1721 argv_array_push(&child->args, "clone");
1723 argv_array_push(&child->args, "--progress");
1725 argv_array_push(&child->args, "--quiet");
1727 argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
1728 if (suc->recommend_shallow && sub->recommend_shallow == 1)
1729 argv_array_push(&child->args, "--depth=1");
1730 if (suc->require_init)
1731 argv_array_push(&child->args, "--require-init");
1732 argv_array_pushl(&child->args, "--path", sub->path, NULL);
1733 argv_array_pushl(&child->args, "--name", sub->name, NULL);
1734 argv_array_pushl(&child->args, "--url", url, NULL);
1735 if (suc->references.nr) {
1736 struct string_list_item *item;
1737 for_each_string_list_item(item, &suc->references)
1738 argv_array_pushl(&child->args, "--reference", item->string, NULL);
1740 if (suc->dissociate)
1741 argv_array_push(&child->args, "--dissociate");
1743 argv_array_push(&child->args, suc->depth);
1744 if (suc->single_branch >= 0)
1745 argv_array_push(&child->args, suc->single_branch ?
1747 "--no-single-branch");
1750 strbuf_reset(&displaypath_sb);
1755 return needs_cloning;
1758 static int update_clone_get_next_task(struct child_process *child,
1763 struct submodule_update_clone *suc = suc_cb;
1764 const struct cache_entry *ce;
1767 for (; suc->current < suc->list.nr; suc->current++) {
1768 ce = suc->list.entries[suc->current];
1769 if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
1770 int *p = xmalloc(sizeof(*p));
1779 * The loop above tried cloning each submodule once, now try the
1780 * stragglers again, which we can imagine as an extension of the
1783 index = suc->current - suc->list.nr;
1784 if (index < suc->failed_clones_nr) {
1786 ce = suc->failed_clones[index];
1787 if (!prepare_to_clone_next_submodule(ce, child, suc, err)) {
1789 strbuf_addstr(err, "BUG: submodule considered for "
1790 "cloning, doesn't need cloning "
1794 p = xmalloc(sizeof(*p));
1804 static int update_clone_start_failure(struct strbuf *err,
1808 struct submodule_update_clone *suc = suc_cb;
1813 static int update_clone_task_finished(int result,
1818 const struct cache_entry *ce;
1819 struct submodule_update_clone *suc = suc_cb;
1821 int *idxP = idx_task_cb;
1828 if (idx < suc->list.nr) {
1829 ce = suc->list.entries[idx];
1830 strbuf_addf(err, _("Failed to clone '%s'. Retry scheduled"),
1832 strbuf_addch(err, '\n');
1833 ALLOC_GROW(suc->failed_clones,
1834 suc->failed_clones_nr + 1,
1835 suc->failed_clones_alloc);
1836 suc->failed_clones[suc->failed_clones_nr++] = ce;
1839 idx -= suc->list.nr;
1840 ce = suc->failed_clones[idx];
1841 strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"),
1843 strbuf_addch(err, '\n');
1851 static int git_update_clone_config(const char *var, const char *value,
1855 if (!strcmp(var, "submodule.fetchjobs"))
1856 *max_jobs = parse_submodule_fetchjobs(var, value);
1860 static void update_submodule(struct update_clone_data *ucd)
1862 fprintf(stdout, "dummy %s %d\t%s\n",
1863 oid_to_hex(&ucd->oid),
1868 static int update_submodules(struct submodule_update_clone *suc)
1872 run_processes_parallel_tr2(suc->max_jobs, update_clone_get_next_task,
1873 update_clone_start_failure,
1874 update_clone_task_finished, suc, "submodule",
1878 * We saved the output and put it out all at once now.
1880 * - the listener does not have to interleave their (checkout)
1881 * work with our fetching. The writes involved in a
1882 * checkout involve more straightforward sequential I/O.
1883 * - the listener can avoid doing any work if fetching failed.
1888 for (i = 0; i < suc->update_clone_nr; i++)
1889 update_submodule(&suc->update_clone[i]);
1894 static int update_clone(int argc, const char **argv, const char *prefix)
1896 const char *update = NULL;
1897 struct pathspec pathspec;
1898 struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
1900 struct option module_update_clone_options[] = {
1901 OPT_STRING(0, "prefix", &prefix,
1903 N_("path into the working tree")),
1904 OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix,
1906 N_("path into the working tree, across nested "
1907 "submodule boundaries")),
1908 OPT_STRING(0, "update", &update,
1910 N_("rebase, merge, checkout or none")),
1911 OPT_STRING_LIST(0, "reference", &suc.references, N_("repo"),
1912 N_("reference repository")),
1913 OPT_BOOL(0, "dissociate", &suc.dissociate,
1914 N_("use --reference only while cloning")),
1915 OPT_STRING(0, "depth", &suc.depth, "<depth>",
1916 N_("Create a shallow clone truncated to the "
1917 "specified number of revisions")),
1918 OPT_INTEGER('j', "jobs", &suc.max_jobs,
1919 N_("parallel jobs")),
1920 OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow,
1921 N_("whether the initial clone should follow the shallow recommendation")),
1922 OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
1923 OPT_BOOL(0, "progress", &suc.progress,
1924 N_("force cloning progress")),
1925 OPT_BOOL(0, "require-init", &suc.require_init,
1926 N_("disallow cloning into non-empty directory")),
1927 OPT_BOOL(0, "single-branch", &suc.single_branch,
1928 N_("clone only one branch, HEAD or --branch")),
1932 const char *const git_submodule_helper_usage[] = {
1933 N_("git submodule--helper update-clone [--prefix=<path>] [<path>...]"),
1936 suc.prefix = prefix;
1938 update_clone_config_from_gitmodules(&suc.max_jobs);
1939 git_config(git_update_clone_config, &suc.max_jobs);
1941 argc = parse_options(argc, argv, prefix, module_update_clone_options,
1942 git_submodule_helper_usage, 0);
1945 if (parse_submodule_update_strategy(update, &suc.update) < 0)
1946 die(_("bad value for update parameter"));
1948 if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0)
1952 suc.warn_if_uninitialized = 1;
1954 return update_submodules(&suc);
1957 static int resolve_relative_path(int argc, const char **argv, const char *prefix)
1959 struct strbuf sb = STRBUF_INIT;
1961 die("submodule--helper relative-path takes exactly 2 arguments, got %d", argc);
1963 printf("%s", relative_path(argv[1], argv[2], &sb));
1964 strbuf_release(&sb);
1968 static const char *remote_submodule_branch(const char *path)
1970 const struct submodule *sub;
1971 const char *branch = NULL;
1974 sub = submodule_from_path(the_repository, &null_oid, path);
1978 key = xstrfmt("submodule.%s.branch", sub->name);
1979 if (repo_config_get_string_const(the_repository, key, &branch))
1980 branch = sub->branch;
1986 if (!strcmp(branch, ".")) {
1987 const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
1990 die(_("No such ref: %s"), "HEAD");
1993 if (!strcmp(refname, "HEAD"))
1994 die(_("Submodule (%s) branch configured to inherit "
1995 "branch from superproject, but the superproject "
1996 "is not on any branch"), sub->name);
1998 if (!skip_prefix(refname, "refs/heads/", &refname))
1999 die(_("Expecting a full ref name, got %s"), refname);
2006 static int resolve_remote_submodule_branch(int argc, const char **argv,
2010 struct strbuf sb = STRBUF_INIT;
2012 die("submodule--helper remote-branch takes exactly one arguments, got %d", argc);
2014 ret = remote_submodule_branch(argv[1]);
2016 die("submodule %s doesn't exist", argv[1]);
2019 strbuf_release(&sb);
2023 static int push_check(int argc, const char **argv, const char *prefix)
2025 struct remote *remote;
2026 const char *superproject_head;
2028 int detached_head = 0;
2029 struct object_id head_oid;
2032 die("submodule--helper push-check requires at least 2 arguments");
2035 * superproject's resolved head ref.
2036 * if HEAD then the superproject is in a detached head state, otherwise
2037 * it will be the resolved head ref.
2039 superproject_head = argv[1];
2042 /* Get the submodule's head ref and determine if it is detached */
2043 head = resolve_refdup("HEAD", 0, &head_oid, NULL);
2045 die(_("Failed to resolve HEAD as a valid ref."));
2046 if (!strcmp(head, "HEAD"))
2050 * The remote must be configured.
2051 * This is to avoid pushing to the exact same URL as the parent.
2053 remote = pushremote_get(argv[1]);
2054 if (!remote || remote->origin == REMOTE_UNCONFIGURED)
2055 die("remote '%s' not configured", argv[1]);
2057 /* Check the refspec */
2060 struct ref *local_refs = get_local_heads();
2061 struct refspec refspec = REFSPEC_INIT_PUSH;
2063 refspec_appendn(&refspec, argv + 2, argc - 2);
2065 for (i = 0; i < refspec.nr; i++) {
2066 const struct refspec_item *rs = &refspec.items[i];
2068 if (rs->pattern || rs->matching)
2071 /* LHS must match a single ref */
2072 switch (count_refspec_match(rs->src, local_refs, NULL)) {
2077 * If LHS matches 'HEAD' then we need to ensure
2078 * that it matches the same named branch
2079 * checked out in the superproject.
2081 if (!strcmp(rs->src, "HEAD")) {
2082 if (!detached_head &&
2083 !strcmp(head, superproject_head))
2085 die("HEAD does not match the named branch in the superproject");
2089 die("src refspec '%s' must name a ref",
2093 refspec_clear(&refspec);
2100 static int ensure_core_worktree(int argc, const char **argv, const char *prefix)
2102 const struct submodule *sub;
2105 struct repository subrepo;
2108 BUG("submodule--helper ensure-core-worktree <path>");
2112 sub = submodule_from_path(the_repository, &null_oid, path);
2114 BUG("We could get the submodule handle before?");
2116 if (repo_submodule_init(&subrepo, the_repository, sub))
2117 die(_("could not get a repository handle for submodule '%s'"), path);
2119 if (!repo_config_get_string(&subrepo, "core.worktree", &cw)) {
2120 char *cfg_file, *abs_path;
2121 const char *rel_path;
2122 struct strbuf sb = STRBUF_INIT;
2124 cfg_file = repo_git_path(&subrepo, "config");
2126 abs_path = absolute_pathdup(path);
2127 rel_path = relative_path(abs_path, subrepo.gitdir, &sb);
2129 git_config_set_in_file(cfg_file, "core.worktree", rel_path);
2133 strbuf_release(&sb);
2139 static int absorb_git_dirs(int argc, const char **argv, const char *prefix)
2142 struct pathspec pathspec;
2143 struct module_list list = MODULE_LIST_INIT;
2144 unsigned flags = ABSORB_GITDIR_RECURSE_SUBMODULES;
2146 struct option embed_gitdir_options[] = {
2147 OPT_STRING(0, "prefix", &prefix,
2149 N_("path into the working tree")),
2150 OPT_BIT(0, "--recursive", &flags, N_("recurse into submodules"),
2151 ABSORB_GITDIR_RECURSE_SUBMODULES),
2155 const char *const git_submodule_helper_usage[] = {
2156 N_("git submodule--helper absorb-git-dirs [<options>] [<path>...]"),
2160 argc = parse_options(argc, argv, prefix, embed_gitdir_options,
2161 git_submodule_helper_usage, 0);
2163 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
2166 for (i = 0; i < list.nr; i++)
2167 absorb_git_dir_into_superproject(list.entries[i]->name, flags);
2172 static int is_active(int argc, const char **argv, const char *prefix)
2175 die("submodule--helper is-active takes exactly 1 argument");
2177 return !is_submodule_active(the_repository, argv[1]);
2181 * Exit non-zero if any of the submodule names given on the command line is
2182 * invalid. If no names are given, filter stdin to print only valid names
2183 * (which is primarily intended for testing).
2185 static int check_name(int argc, const char **argv, const char *prefix)
2189 if (check_submodule_name(*argv) < 0)
2193 struct strbuf buf = STRBUF_INIT;
2194 while (strbuf_getline(&buf, stdin) != EOF) {
2195 if (!check_submodule_name(buf.buf))
2196 printf("%s\n", buf.buf);
2198 strbuf_release(&buf);
2203 static int module_config(int argc, const char **argv, const char *prefix)
2206 CHECK_WRITEABLE = 1,
2210 struct option module_config_options[] = {
2211 OPT_CMDMODE(0, "check-writeable", &command,
2212 N_("check if it is safe to write to the .gitmodules file"),
2214 OPT_CMDMODE(0, "unset", &command,
2215 N_("unset the config in the .gitmodules file"),
2219 const char *const git_submodule_helper_usage[] = {
2220 N_("git submodule--helper config <name> [<value>]"),
2221 N_("git submodule--helper config --unset <name>"),
2222 N_("git submodule--helper config --check-writeable"),
2226 argc = parse_options(argc, argv, prefix, module_config_options,
2227 git_submodule_helper_usage, PARSE_OPT_KEEP_ARGV0);
2229 if (argc == 1 && command == CHECK_WRITEABLE)
2230 return is_writing_gitmodules_ok() ? 0 : -1;
2232 /* Equivalent to ACTION_GET in builtin/config.c */
2233 if (argc == 2 && command != DO_UNSET)
2234 return print_config_from_gitmodules(the_repository, argv[1]);
2236 /* Equivalent to ACTION_SET in builtin/config.c */
2237 if (argc == 3 || (argc == 2 && command == DO_UNSET)) {
2238 const char *value = (argc == 3) ? argv[2] : NULL;
2240 if (!is_writing_gitmodules_ok())
2241 die(_("please make sure that the .gitmodules file is in the working tree"));
2243 return config_set_in_gitmodules_file_gently(argv[1], value);
2246 usage_with_options(git_submodule_helper_usage, module_config_options);
2249 #define SUPPORT_SUPER_PREFIX (1<<0)
2253 int (*fn)(int, const char **, const char *);
2257 static struct cmd_struct commands[] = {
2258 {"list", module_list, 0},
2259 {"name", module_name, 0},
2260 {"clone", module_clone, 0},
2261 {"update-module-mode", module_update_module_mode, 0},
2262 {"update-clone", update_clone, 0},
2263 {"ensure-core-worktree", ensure_core_worktree, 0},
2264 {"relative-path", resolve_relative_path, 0},
2265 {"resolve-relative-url", resolve_relative_url, 0},
2266 {"resolve-relative-url-test", resolve_relative_url_test, 0},
2267 {"foreach", module_foreach, SUPPORT_SUPER_PREFIX},
2268 {"init", module_init, SUPPORT_SUPER_PREFIX},
2269 {"status", module_status, SUPPORT_SUPER_PREFIX},
2270 {"print-default-remote", print_default_remote, 0},
2271 {"sync", module_sync, SUPPORT_SUPER_PREFIX},
2272 {"deinit", module_deinit, 0},
2273 {"remote-branch", resolve_remote_submodule_branch, 0},
2274 {"push-check", push_check, 0},
2275 {"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX},
2276 {"is-active", is_active, 0},
2277 {"check-name", check_name, 0},
2278 {"config", module_config, 0},
2281 int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
2284 if (argc < 2 || !strcmp(argv[1], "-h"))
2285 usage("git submodule--helper <command>");
2287 for (i = 0; i < ARRAY_SIZE(commands); i++) {
2288 if (!strcmp(argv[1], commands[i].cmd)) {
2289 if (get_super_prefix() &&
2290 !(commands[i].option & SUPPORT_SUPER_PREFIX))
2291 die(_("%s doesn't support --super-prefix"),
2293 return commands[i].fn(argc - 1, argv + 1, prefix);
2297 die(_("'%s' is not a valid submodule--helper "
2298 "subcommand"), argv[1]);