3 #include "parse-options.h"
9 #include "submodule-config.h"
10 #include "string-list.h"
11 #include "run-command.h"
16 static char *get_default_remote(void)
18 char *dest = NULL, *ret;
19 unsigned char sha1[20];
20 struct strbuf sb = STRBUF_INIT;
21 const char *refname = resolve_ref_unsafe("HEAD", 0, sha1, NULL);
24 die(_("No such ref: %s"), "HEAD");
27 if (!strcmp(refname, "HEAD"))
28 return xstrdup("origin");
30 if (!skip_prefix(refname, "refs/heads/", &refname))
31 die(_("Expecting a full ref name, got %s"), refname);
33 strbuf_addf(&sb, "branch.%s.remote", refname);
34 if (git_config_get_string(sb.buf, &dest))
35 ret = xstrdup("origin");
43 static int starts_with_dot_slash(const char *str)
45 return str[0] == '.' && is_dir_sep(str[1]);
48 static int starts_with_dot_dot_slash(const char *str)
50 return str[0] == '.' && str[1] == '.' && is_dir_sep(str[2]);
54 * Returns 1 if it was the last chop before ':'.
56 static int chop_last_dir(char **remoteurl, int is_relative)
58 char *rfind = find_last_dir_sep(*remoteurl);
64 rfind = strrchr(*remoteurl, ':');
70 if (is_relative || !strcmp(".", *remoteurl))
71 die(_("cannot strip one component off url '%s'"),
75 *remoteurl = xstrdup(".");
80 * The `url` argument is the URL that navigates to the submodule origin
81 * repo. When relative, this URL is relative to the superproject origin
82 * URL repo. The `up_path` argument, if specified, is the relative
83 * path that navigates from the submodule working tree to the superproject
84 * working tree. Returns the origin URL of the submodule.
86 * Return either an absolute URL or filesystem path (if the superproject
87 * origin URL is an absolute URL or filesystem path, respectively) or a
88 * relative file system path (if the superproject origin URL is a relative
91 * When the output is a relative file system path, the path is either
92 * relative to the submodule working tree, if up_path is specified, or to
93 * the superproject working tree otherwise.
95 * NEEDSWORK: This works incorrectly on the domain and protocol part.
96 * remote_url url outcome expectation
97 * http://a.com/b ../c http://a.com/c as is
98 * http://a.com/b ../../c http://c error out
99 * http://a.com/b ../../../c http:/c error out
100 * http://a.com/b ../../../../c http:c error out
101 * http://a.com/b ../../../../../c .:c error out
102 * NEEDSWORK: Given how chop_last_dir() works, this function is broken
103 * when a local part has a colon in its path component, too.
105 static char *relative_url(const char *remote_url,
112 char *remoteurl = xstrdup(remote_url);
113 struct strbuf sb = STRBUF_INIT;
114 size_t len = strlen(remoteurl);
116 if (is_dir_sep(remoteurl[len]))
117 remoteurl[len] = '\0';
119 if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl))
124 * Prepend a './' to ensure all relative
125 * remoteurls start with './' or '../'
127 if (!starts_with_dot_slash(remoteurl) &&
128 !starts_with_dot_dot_slash(remoteurl)) {
130 strbuf_addf(&sb, "./%s", remoteurl);
132 remoteurl = strbuf_detach(&sb, NULL);
136 * When the url starts with '../', remove that and the
137 * last directory in remoteurl.
140 if (starts_with_dot_dot_slash(url)) {
142 colonsep |= chop_last_dir(&remoteurl, is_relative);
143 } else if (starts_with_dot_slash(url))
149 strbuf_addf(&sb, "%s%s%s", remoteurl, colonsep ? ":" : "/", url);
152 if (starts_with_dot_slash(sb.buf))
153 out = xstrdup(sb.buf + 2);
155 out = xstrdup(sb.buf);
158 if (!up_path || !is_relative)
161 strbuf_addf(&sb, "%s%s", up_path, out);
163 return strbuf_detach(&sb, NULL);
166 static int resolve_relative_url(int argc, const char **argv, const char *prefix)
168 char *remoteurl = NULL;
169 char *remote = get_default_remote();
170 const char *up_path = NULL;
173 struct strbuf sb = STRBUF_INIT;
175 if (argc != 2 && argc != 3)
176 die("resolve-relative-url only accepts one or two arguments");
179 strbuf_addf(&sb, "remote.%s.url", remote);
182 if (git_config_get_string(sb.buf, &remoteurl))
183 /* the repository is its own authoritative upstream */
184 remoteurl = xgetcwd();
189 res = relative_url(remoteurl, url, up_path);
196 static int resolve_relative_url_test(int argc, const char **argv, const char *prefix)
198 char *remoteurl, *res;
199 const char *up_path, *url;
202 die("resolve-relative-url-test only accepts three arguments: <up_path> <remoteurl> <url>");
205 remoteurl = xstrdup(argv[2]);
208 if (!strcmp(up_path, "(null)"))
211 res = relative_url(remoteurl, url, up_path);
219 const struct cache_entry **entries;
222 #define MODULE_LIST_INIT { NULL, 0, 0 }
224 static int module_list_compute(int argc, const char **argv,
226 struct pathspec *pathspec,
227 struct module_list *list)
230 char *ps_matched = NULL;
231 parse_pathspec(pathspec, 0,
232 PATHSPEC_PREFER_FULL |
233 PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
237 ps_matched = xcalloc(pathspec->nr, 1);
239 if (read_cache() < 0)
240 die(_("index file corrupt"));
242 for (i = 0; i < active_nr; i++) {
243 const struct cache_entry *ce = active_cache[i];
245 if (!match_pathspec(pathspec, ce->name, ce_namelen(ce),
247 !S_ISGITLINK(ce->ce_mode))
250 ALLOC_GROW(list->entries, list->nr + 1, list->alloc);
251 list->entries[list->nr++] = ce;
252 while (i + 1 < active_nr &&
253 !strcmp(ce->name, active_cache[i + 1]->name))
255 * Skip entries with the same name in different stages
256 * to make sure an entry is returned only once.
261 if (ps_matched && report_path_error(ps_matched, pathspec, prefix))
269 static int module_list(int argc, const char **argv, const char *prefix)
272 struct pathspec pathspec;
273 struct module_list list = MODULE_LIST_INIT;
275 struct option module_list_options[] = {
276 OPT_STRING(0, "prefix", &prefix,
278 N_("alternative anchor for relative paths")),
282 const char *const git_submodule_helper_usage[] = {
283 N_("git submodule--helper list [--prefix=<path>] [<path>...]"),
287 argc = parse_options(argc, argv, prefix, module_list_options,
288 git_submodule_helper_usage, 0);
290 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
293 for (i = 0; i < list.nr; i++) {
294 const struct cache_entry *ce = list.entries[i];
297 printf("%06o %s U\t", ce->ce_mode, sha1_to_hex(null_sha1));
299 printf("%06o %s %d\t", ce->ce_mode,
300 oid_to_hex(&ce->oid), ce_stage(ce));
302 utf8_fprintf(stdout, "%s\n", ce->name);
307 static void init_submodule(const char *path, const char *prefix, int quiet)
309 const struct submodule *sub;
310 struct strbuf sb = STRBUF_INIT;
311 char *upd = NULL, *url = NULL, *displaypath;
313 /* Only loads from .gitmodules, no overlay with .git/config */
317 strbuf_addf(&sb, "%s%s", prefix, path);
318 displaypath = strbuf_detach(&sb, NULL);
320 displaypath = xstrdup(path);
322 sub = submodule_from_path(null_sha1, path);
325 die(_("No url found for submodule path '%s' in .gitmodules"),
329 * Copy url setting when it is not set yet.
330 * To look up the url in .git/config, we must not fall back to
331 * .gitmodules, so look it up directly.
334 strbuf_addf(&sb, "submodule.%s.url", sub->name);
335 if (git_config_get_string(sb.buf, &url)) {
336 url = xstrdup(sub->url);
339 die(_("No url found for submodule path '%s' in .gitmodules"),
342 /* Possibly a url relative to parent */
343 if (starts_with_dot_dot_slash(url) ||
344 starts_with_dot_slash(url)) {
345 char *remoteurl, *relurl;
346 char *remote = get_default_remote();
347 struct strbuf remotesb = STRBUF_INIT;
348 strbuf_addf(&remotesb, "remote.%s.url", remote);
351 if (git_config_get_string(remotesb.buf, &remoteurl))
353 * The repository is its own
354 * authoritative upstream
356 remoteurl = xgetcwd();
357 relurl = relative_url(remoteurl, url, NULL);
358 strbuf_release(&remotesb);
364 if (git_config_set_gently(sb.buf, url))
365 die(_("Failed to register url for submodule path '%s'"),
369 _("Submodule '%s' (%s) registered for path '%s'\n"),
370 sub->name, url, displaypath);
373 /* Copy "update" setting when it is not set yet */
375 strbuf_addf(&sb, "submodule.%s.update", sub->name);
376 if (git_config_get_string(sb.buf, &upd) &&
377 sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) {
378 if (sub->update_strategy.type == SM_UPDATE_COMMAND) {
379 fprintf(stderr, _("warning: command update mode suggested for submodule '%s'\n"),
381 upd = xstrdup("none");
383 upd = xstrdup(submodule_strategy_to_string(&sub->update_strategy));
385 if (git_config_set_gently(sb.buf, upd))
386 die(_("Failed to register update mode for submodule path '%s'"), displaypath);
394 static int module_init(int argc, const char **argv, const char *prefix)
396 struct pathspec pathspec;
397 struct module_list list = MODULE_LIST_INIT;
401 struct option module_init_options[] = {
402 OPT_STRING(0, "prefix", &prefix,
404 N_("alternative anchor for relative paths")),
405 OPT__QUIET(&quiet, N_("Suppress output for initializing a submodule")),
409 const char *const git_submodule_helper_usage[] = {
410 N_("git submodule--helper init [<path>]"),
414 argc = parse_options(argc, argv, prefix, module_init_options,
415 git_submodule_helper_usage, 0);
417 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
420 for (i = 0; i < list.nr; i++)
421 init_submodule(list.entries[i]->name, prefix, quiet);
426 static int module_name(int argc, const char **argv, const char *prefix)
428 const struct submodule *sub;
431 usage(_("git submodule--helper name <path>"));
434 sub = submodule_from_path(null_sha1, argv[1]);
437 die(_("no submodule mapping found in .gitmodules for path '%s'"),
440 printf("%s\n", sub->name);
445 static int clone_submodule(const char *path, const char *gitdir, const char *url,
446 const char *depth, struct string_list *reference, int quiet)
448 struct child_process cp = CHILD_PROCESS_INIT;
450 argv_array_push(&cp.args, "clone");
451 argv_array_push(&cp.args, "--no-checkout");
453 argv_array_push(&cp.args, "--quiet");
455 argv_array_pushl(&cp.args, "--depth", depth, NULL);
457 struct string_list_item *item;
458 for_each_string_list_item(item, reference)
459 argv_array_pushl(&cp.args, "--reference",
462 if (gitdir && *gitdir)
463 argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL);
465 argv_array_push(&cp.args, url);
466 argv_array_push(&cp.args, path);
469 prepare_submodule_repo_env(&cp.env_array);
472 return run_command(&cp);
475 struct submodule_alternate_setup {
476 const char *submodule_name;
477 enum SUBMODULE_ALTERNATE_ERROR_MODE {
478 SUBMODULE_ALTERNATE_ERROR_DIE,
479 SUBMODULE_ALTERNATE_ERROR_INFO,
480 SUBMODULE_ALTERNATE_ERROR_IGNORE
482 struct string_list *reference;
484 #define SUBMODULE_ALTERNATE_SETUP_INIT { NULL, \
485 SUBMODULE_ALTERNATE_ERROR_IGNORE, NULL }
487 static int add_possible_reference_from_superproject(
488 struct alternate_object_database *alt, void *sas_cb)
490 struct submodule_alternate_setup *sas = sas_cb;
492 /* directory name, minus trailing slash */
493 size_t namelen = alt->name - alt->base - 1;
494 struct strbuf name = STRBUF_INIT;
495 strbuf_add(&name, alt->base, namelen);
498 * If the alternate object store is another repository, try the
499 * standard layout with .git/modules/<name>/objects
501 if (ends_with(name.buf, ".git/objects")) {
503 struct strbuf sb = STRBUF_INIT;
504 struct strbuf err = STRBUF_INIT;
505 strbuf_add(&sb, name.buf, name.len - strlen("objects"));
507 * We need to end the new path with '/' to mark it as a dir,
508 * otherwise a submodule name containing '/' will be broken
509 * as the last part of a missing submodule reference would
510 * be taken as a file name.
512 strbuf_addf(&sb, "modules/%s/", sas->submodule_name);
514 sm_alternate = compute_alternate_path(sb.buf, &err);
516 string_list_append(sas->reference, xstrdup(sb.buf));
519 switch (sas->error_mode) {
520 case SUBMODULE_ALTERNATE_ERROR_DIE:
521 die(_("submodule '%s' cannot add alternate: %s"),
522 sas->submodule_name, err.buf);
523 case SUBMODULE_ALTERNATE_ERROR_INFO:
524 fprintf(stderr, _("submodule '%s' cannot add alternate: %s"),
525 sas->submodule_name, err.buf);
526 case SUBMODULE_ALTERNATE_ERROR_IGNORE:
533 strbuf_release(&name);
537 static void prepare_possible_alternates(const char *sm_name,
538 struct string_list *reference)
540 char *sm_alternate = NULL, *error_strategy = NULL;
541 struct submodule_alternate_setup sas = SUBMODULE_ALTERNATE_SETUP_INIT;
543 git_config_get_string("submodule.alternateLocation", &sm_alternate);
547 git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
550 error_strategy = xstrdup("die");
552 sas.submodule_name = sm_name;
553 sas.reference = reference;
554 if (!strcmp(error_strategy, "die"))
555 sas.error_mode = SUBMODULE_ALTERNATE_ERROR_DIE;
556 else if (!strcmp(error_strategy, "info"))
557 sas.error_mode = SUBMODULE_ALTERNATE_ERROR_INFO;
558 else if (!strcmp(error_strategy, "ignore"))
559 sas.error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE;
561 die(_("Value '%s' for submodule.alternateErrorStrategy is not recognized"), error_strategy);
563 if (!strcmp(sm_alternate, "superproject"))
564 foreach_alt_odb(add_possible_reference_from_superproject, &sas);
565 else if (!strcmp(sm_alternate, "no"))
568 die(_("Value '%s' for submodule.alternateLocation is not recognized"), sm_alternate);
571 free(error_strategy);
574 static int module_clone(int argc, const char **argv, const char *prefix)
576 const char *name = NULL, *url = NULL, *depth = NULL;
578 FILE *submodule_dot_git;
579 char *p, *path = NULL, *sm_gitdir;
580 struct strbuf rel_path = STRBUF_INIT;
581 struct strbuf sb = STRBUF_INIT;
582 struct string_list reference = STRING_LIST_INIT_NODUP;
584 struct option module_clone_options[] = {
585 OPT_STRING(0, "prefix", &prefix,
587 N_("alternative anchor for relative paths")),
588 OPT_STRING(0, "path", &path,
590 N_("where the new submodule will be cloned to")),
591 OPT_STRING(0, "name", &name,
593 N_("name of the new submodule")),
594 OPT_STRING(0, "url", &url,
596 N_("url where to clone the submodule from")),
597 OPT_STRING_LIST(0, "reference", &reference,
599 N_("reference repository")),
600 OPT_STRING(0, "depth", &depth,
602 N_("depth for shallow clones")),
603 OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
607 const char *const git_submodule_helper_usage[] = {
608 N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
609 "[--reference <repository>] [--name <name>] [--depth <depth>] "
610 "--url <url> --path <path>"),
614 argc = parse_options(argc, argv, prefix, module_clone_options,
615 git_submodule_helper_usage, 0);
617 if (argc || !url || !path || !*path)
618 usage_with_options(git_submodule_helper_usage,
619 module_clone_options);
621 strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
622 sm_gitdir = xstrdup(absolute_path(sb.buf));
625 if (!is_absolute_path(path)) {
626 strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path);
627 path = strbuf_detach(&sb, NULL);
629 path = xstrdup(path);
631 if (!file_exists(sm_gitdir)) {
632 if (safe_create_leading_directories_const(sm_gitdir) < 0)
633 die(_("could not create directory '%s'"), sm_gitdir);
635 prepare_possible_alternates(name, &reference);
637 if (clone_submodule(path, sm_gitdir, url, depth, &reference, quiet))
638 die(_("clone of '%s' into submodule path '%s' failed"),
641 if (safe_create_leading_directories_const(path) < 0)
642 die(_("could not create directory '%s'"), path);
643 strbuf_addf(&sb, "%s/index", sm_gitdir);
644 unlink_or_warn(sb.buf);
648 /* Write a .git file in the submodule to redirect to the superproject. */
649 strbuf_addf(&sb, "%s/.git", path);
650 if (safe_create_leading_directories_const(sb.buf) < 0)
651 die(_("could not create leading directories of '%s'"), sb.buf);
652 submodule_dot_git = fopen(sb.buf, "w");
653 if (!submodule_dot_git)
654 die_errno(_("cannot open file '%s'"), sb.buf);
656 fprintf_or_die(submodule_dot_git, "gitdir: %s\n",
657 relative_path(sm_gitdir, path, &rel_path));
658 if (fclose(submodule_dot_git))
659 die(_("could not close file %s"), sb.buf);
661 strbuf_reset(&rel_path);
663 /* Redirect the worktree of the submodule in the superproject's config */
664 p = git_pathdup_submodule(path, "config");
666 die(_("could not get submodule directory for '%s'"), path);
667 git_config_set_in_file(p, "core.worktree",
668 relative_path(path, sm_gitdir, &rel_path));
670 strbuf_release(&rel_path);
677 struct submodule_update_clone {
678 /* index into 'list', the list of submodules to look into for cloning */
680 struct module_list list;
681 unsigned warn_if_uninitialized : 1;
683 /* update parameter passed via commandline */
684 struct submodule_update_strategy update;
686 /* configuration parameters which are passed on to the children */
688 int recommend_shallow;
689 struct string_list references;
691 const char *recursive_prefix;
694 /* Machine-readable status lines to be consumed by git-submodule.sh */
695 struct string_list projectlines;
697 /* If we want to stop as fast as possible and return an error */
698 unsigned quickstop : 1;
700 /* failed clones to be retried again */
701 const struct cache_entry **failed_clones;
702 int failed_clones_nr, failed_clones_alloc;
704 #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
705 SUBMODULE_UPDATE_STRATEGY_INIT, 0, -1, STRING_LIST_INIT_DUP, \
707 STRING_LIST_INIT_DUP, 0, NULL, 0, 0}
710 static void next_submodule_warn_missing(struct submodule_update_clone *suc,
711 struct strbuf *out, const char *displaypath)
714 * Only mention uninitialized submodules when their
715 * paths have been specified.
717 if (suc->warn_if_uninitialized) {
719 _("Submodule path '%s' not initialized"),
721 strbuf_addch(out, '\n');
723 _("Maybe you want to use 'update --init'?"));
724 strbuf_addch(out, '\n');
729 * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
730 * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise.
732 static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
733 struct child_process *child,
734 struct submodule_update_clone *suc,
737 const struct submodule *sub = NULL;
738 struct strbuf displaypath_sb = STRBUF_INIT;
739 struct strbuf sb = STRBUF_INIT;
740 const char *displaypath = NULL;
742 int needs_cloning = 0;
745 if (suc->recursive_prefix)
746 strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
748 strbuf_addf(&sb, "%s", ce->name);
749 strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
750 strbuf_addch(out, '\n');
754 sub = submodule_from_path(null_sha1, ce->name);
756 if (suc->recursive_prefix)
757 displaypath = relative_path(suc->recursive_prefix,
758 ce->name, &displaypath_sb);
760 displaypath = ce->name;
763 next_submodule_warn_missing(suc, out, displaypath);
767 if (suc->update.type == SM_UPDATE_NONE
768 || (suc->update.type == SM_UPDATE_UNSPECIFIED
769 && sub->update_strategy.type == SM_UPDATE_NONE)) {
770 strbuf_addf(out, _("Skipping submodule '%s'"), displaypath);
771 strbuf_addch(out, '\n');
776 * Looking up the url in .git/config.
777 * We must not fall back to .gitmodules as we only want
778 * to process configured submodules.
781 strbuf_addf(&sb, "submodule.%s.url", sub->name);
782 git_config_get_string(sb.buf, &url);
784 next_submodule_warn_missing(suc, out, displaypath);
789 strbuf_addf(&sb, "%s/.git", ce->name);
790 needs_cloning = !file_exists(sb.buf);
793 strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode,
794 oid_to_hex(&ce->oid), ce_stage(ce),
795 needs_cloning, ce->name);
796 string_list_append(&suc->projectlines, sb.buf);
803 child->stdout_to_stderr = 1;
805 argv_array_push(&child->args, "submodule--helper");
806 argv_array_push(&child->args, "clone");
808 argv_array_push(&child->args, "--quiet");
810 argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
811 if (suc->recommend_shallow && sub->recommend_shallow == 1)
812 argv_array_push(&child->args, "--depth=1");
813 argv_array_pushl(&child->args, "--path", sub->path, NULL);
814 argv_array_pushl(&child->args, "--name", sub->name, NULL);
815 argv_array_pushl(&child->args, "--url", url, NULL);
816 if (suc->references.nr) {
817 struct string_list_item *item;
818 for_each_string_list_item(item, &suc->references)
819 argv_array_pushl(&child->args, "--reference", item->string, NULL);
822 argv_array_push(&child->args, suc->depth);
826 strbuf_reset(&displaypath_sb);
829 return needs_cloning;
832 static int update_clone_get_next_task(struct child_process *child,
837 struct submodule_update_clone *suc = suc_cb;
838 const struct cache_entry *ce;
841 for (; suc->current < suc->list.nr; suc->current++) {
842 ce = suc->list.entries[suc->current];
843 if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
844 int *p = xmalloc(sizeof(*p));
853 * The loop above tried cloning each submodule once, now try the
854 * stragglers again, which we can imagine as an extension of the
857 index = suc->current - suc->list.nr;
858 if (index < suc->failed_clones_nr) {
860 ce = suc->failed_clones[index];
861 if (!prepare_to_clone_next_submodule(ce, child, suc, err)) {
863 strbuf_addstr(err, "BUG: submodule considered for "
864 "cloning, doesn't need cloning "
868 p = xmalloc(sizeof(*p));
878 static int update_clone_start_failure(struct strbuf *err,
882 struct submodule_update_clone *suc = suc_cb;
887 static int update_clone_task_finished(int result,
892 const struct cache_entry *ce;
893 struct submodule_update_clone *suc = suc_cb;
895 int *idxP = *(int**)idx_task_cb;
902 if (idx < suc->list.nr) {
903 ce = suc->list.entries[idx];
904 strbuf_addf(err, _("Failed to clone '%s'. Retry scheduled"),
906 strbuf_addch(err, '\n');
907 ALLOC_GROW(suc->failed_clones,
908 suc->failed_clones_nr + 1,
909 suc->failed_clones_alloc);
910 suc->failed_clones[suc->failed_clones_nr++] = ce;
914 ce = suc->failed_clones[idx];
915 strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"),
917 strbuf_addch(err, '\n');
925 static int update_clone(int argc, const char **argv, const char *prefix)
927 const char *update = NULL;
929 struct string_list_item *item;
930 struct pathspec pathspec;
931 struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
933 struct option module_update_clone_options[] = {
934 OPT_STRING(0, "prefix", &prefix,
936 N_("path into the working tree")),
937 OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix,
939 N_("path into the working tree, across nested "
940 "submodule boundaries")),
941 OPT_STRING(0, "update", &update,
943 N_("rebase, merge, checkout or none")),
944 OPT_STRING_LIST(0, "reference", &suc.references, N_("repo"),
945 N_("reference repository")),
946 OPT_STRING(0, "depth", &suc.depth, "<depth>",
947 N_("Create a shallow clone truncated to the "
948 "specified number of revisions")),
949 OPT_INTEGER('j', "jobs", &max_jobs,
950 N_("parallel jobs")),
951 OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow,
952 N_("whether the initial clone should follow the shallow recommendation")),
953 OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
957 const char *const git_submodule_helper_usage[] = {
958 N_("git submodule--helper update_clone [--prefix=<path>] [<path>...]"),
963 argc = parse_options(argc, argv, prefix, module_update_clone_options,
964 git_submodule_helper_usage, 0);
967 if (parse_submodule_update_strategy(update, &suc.update) < 0)
968 die(_("bad value for update parameter"));
970 if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0)
974 suc.warn_if_uninitialized = 1;
976 /* Overlay the parsed .gitmodules file with .git/config */
978 git_config(submodule_config, NULL);
981 max_jobs = parallel_submodules();
983 run_processes_parallel(max_jobs,
984 update_clone_get_next_task,
985 update_clone_start_failure,
986 update_clone_task_finished,
990 * We saved the output and put it out all at once now.
992 * - the listener does not have to interleave their (checkout)
993 * work with our fetching. The writes involved in a
994 * checkout involve more straightforward sequential I/O.
995 * - the listener can avoid doing any work if fetching failed.
1000 for_each_string_list_item(item, &suc.projectlines)
1001 utf8_fprintf(stdout, "%s", item->string);
1006 static int resolve_relative_path(int argc, const char **argv, const char *prefix)
1008 struct strbuf sb = STRBUF_INIT;
1010 die("submodule--helper relative-path takes exactly 2 arguments, got %d", argc);
1012 printf("%s", relative_path(argv[1], argv[2], &sb));
1013 strbuf_release(&sb);
1017 static const char *remote_submodule_branch(const char *path)
1019 const struct submodule *sub;
1020 gitmodules_config();
1021 git_config(submodule_config, NULL);
1023 sub = submodule_from_path(null_sha1, path);
1030 if (!strcmp(sub->branch, ".")) {
1031 unsigned char sha1[20];
1032 const char *refname = resolve_ref_unsafe("HEAD", 0, sha1, NULL);
1035 die(_("No such ref: %s"), "HEAD");
1038 if (!strcmp(refname, "HEAD"))
1039 die(_("Submodule (%s) branch configured to inherit "
1040 "branch from superproject, but the superproject "
1041 "is not on any branch"), sub->name);
1043 if (!skip_prefix(refname, "refs/heads/", &refname))
1044 die(_("Expecting a full ref name, got %s"), refname);
1051 static int resolve_remote_submodule_branch(int argc, const char **argv,
1055 struct strbuf sb = STRBUF_INIT;
1057 die("submodule--helper remote-branch takes exactly one arguments, got %d", argc);
1059 ret = remote_submodule_branch(argv[1]);
1061 die("submodule %s doesn't exist", argv[1]);
1064 strbuf_release(&sb);
1070 int (*fn)(int, const char **, const char *);
1073 static struct cmd_struct commands[] = {
1074 {"list", module_list},
1075 {"name", module_name},
1076 {"clone", module_clone},
1077 {"update-clone", update_clone},
1078 {"relative-path", resolve_relative_path},
1079 {"resolve-relative-url", resolve_relative_url},
1080 {"resolve-relative-url-test", resolve_relative_url_test},
1081 {"init", module_init},
1082 {"remote-branch", resolve_remote_submodule_branch}
1085 int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
1089 die(_("submodule--helper subcommand must be "
1090 "called with a subcommand"));
1092 for (i = 0; i < ARRAY_SIZE(commands); i++)
1093 if (!strcmp(argv[1], commands[i].cmd))
1094 return commands[i].fn(argc - 1, argv + 1, prefix);
1096 die(_("'%s' is not a valid submodule--helper "
1097 "subcommand"), argv[1]);