#define USE_THE_INDEX_COMPATIBILITY_MACROS #include "builtin.h" #include "repository.h" #include "cache.h" #include "config.h" #include "parse-options.h" #include "quote.h" #include "pathspec.h" #include "dir.h" #include "submodule.h" #include "submodule-config.h" #include "string-list.h" #include "run-command.h" #include "remote.h" #include "refs.h" #include "refspec.h" #include "connect.h" #include "revision.h" #include "diffcore.h" #include "diff.h" #include "object-store.h" #include "advice.h" #include "branch.h" #include "list-objects-filter-options.h" #define OPT_QUIET (1 << 0) #define OPT_CACHED (1 << 1) #define OPT_RECURSIVE (1 << 2) #define OPT_FORCE (1 << 3) typedef void (*each_submodule_fn)(const struct cache_entry *list_item, void *cb_data); static char *get_default_remote(void) { char *dest = NULL, *ret; struct strbuf sb = STRBUF_INIT; const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL); if (!refname) die(_("No such ref: %s"), "HEAD"); /* detached HEAD */ if (!strcmp(refname, "HEAD")) return xstrdup("origin"); if (!skip_prefix(refname, "refs/heads/", &refname)) die(_("Expecting a full ref name, got %s"), refname); strbuf_addf(&sb, "branch.%s.remote", refname); if (git_config_get_string(sb.buf, &dest)) ret = xstrdup("origin"); else ret = dest; strbuf_release(&sb); return ret; } static int print_default_remote(int argc, const char **argv, const char *prefix) { char *remote; if (argc != 1) die(_("submodule--helper print-default-remote takes no arguments")); remote = get_default_remote(); if (remote) printf("%s\n", remote); free(remote); return 0; } static int starts_with_dot_slash(const char *str) { return str[0] == '.' && is_dir_sep(str[1]); } static int starts_with_dot_dot_slash(const char *str) { return str[0] == '.' && str[1] == '.' && is_dir_sep(str[2]); } /* * Returns 1 if it was the last chop before ':'. */ static int chop_last_dir(char **remoteurl, int is_relative) { char *rfind = find_last_dir_sep(*remoteurl); if (rfind) { *rfind = '\0'; return 0; } rfind = strrchr(*remoteurl, ':'); if (rfind) { *rfind = '\0'; return 1; } if (is_relative || !strcmp(".", *remoteurl)) die(_("cannot strip one component off url '%s'"), *remoteurl); free(*remoteurl); *remoteurl = xstrdup("."); return 0; } /* * The `url` argument is the URL that navigates to the submodule origin * repo. When relative, this URL is relative to the superproject origin * URL repo. The `up_path` argument, if specified, is the relative * path that navigates from the submodule working tree to the superproject * working tree. Returns the origin URL of the submodule. * * Return either an absolute URL or filesystem path (if the superproject * origin URL is an absolute URL or filesystem path, respectively) or a * relative file system path (if the superproject origin URL is a relative * file system path). * * When the output is a relative file system path, the path is either * relative to the submodule working tree, if up_path is specified, or to * the superproject working tree otherwise. * * NEEDSWORK: This works incorrectly on the domain and protocol part. * remote_url url outcome expectation * http://a.com/b ../c http://a.com/c as is * http://a.com/b/ ../c http://a.com/c same as previous line, but * ignore trailing slash in url * http://a.com/b ../../c http://c error out * http://a.com/b ../../../c http:/c error out * http://a.com/b ../../../../c http:c error out * http://a.com/b ../../../../../c .:c error out * NEEDSWORK: Given how chop_last_dir() works, this function is broken * when a local part has a colon in its path component, too. */ static char *relative_url(const char *remote_url, const char *url, const char *up_path) { int is_relative = 0; int colonsep = 0; char *out; char *remoteurl = xstrdup(remote_url); struct strbuf sb = STRBUF_INIT; size_t len = strlen(remoteurl); if (is_dir_sep(remoteurl[len-1])) remoteurl[len-1] = '\0'; if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl)) is_relative = 0; else { is_relative = 1; /* * Prepend a './' to ensure all relative * remoteurls start with './' or '../' */ if (!starts_with_dot_slash(remoteurl) && !starts_with_dot_dot_slash(remoteurl)) { strbuf_reset(&sb); strbuf_addf(&sb, "./%s", remoteurl); free(remoteurl); remoteurl = strbuf_detach(&sb, NULL); } } /* * When the url starts with '../', remove that and the * last directory in remoteurl. */ while (url) { if (starts_with_dot_dot_slash(url)) { url += 3; colonsep |= chop_last_dir(&remoteurl, is_relative); } else if (starts_with_dot_slash(url)) url += 2; else break; } strbuf_reset(&sb); strbuf_addf(&sb, "%s%s%s", remoteurl, colonsep ? ":" : "/", url); if (ends_with(url, "/")) strbuf_setlen(&sb, sb.len - 1); free(remoteurl); if (starts_with_dot_slash(sb.buf)) out = xstrdup(sb.buf + 2); else out = xstrdup(sb.buf); if (!up_path || !is_relative) { strbuf_release(&sb); return out; } strbuf_reset(&sb); strbuf_addf(&sb, "%s%s", up_path, out); free(out); return strbuf_detach(&sb, NULL); } static char *resolve_relative_url(const char *rel_url, const char *up_path, int quiet) { char *remoteurl, *resolved_url; char *remote = get_default_remote(); struct strbuf remotesb = STRBUF_INIT; strbuf_addf(&remotesb, "remote.%s.url", remote); if (git_config_get_string(remotesb.buf, &remoteurl)) { if (!quiet) warning(_("could not look up configuration '%s'. " "Assuming this repository is its own " "authoritative upstream."), remotesb.buf); remoteurl = xgetcwd(); } resolved_url = relative_url(remoteurl, rel_url, up_path); free(remote); free(remoteurl); strbuf_release(&remotesb); return resolved_url; } static int resolve_relative_url_test(int argc, const char **argv, const char *prefix) { char *remoteurl, *res; const char *up_path, *url; if (argc != 4) die("resolve-relative-url-test only accepts three arguments: "); up_path = argv[1]; remoteurl = xstrdup(argv[2]); url = argv[3]; if (!strcmp(up_path, "(null)")) up_path = NULL; res = relative_url(remoteurl, url, up_path); puts(res); free(res); free(remoteurl); return 0; } /* the result should be freed by the caller. */ static char *get_submodule_displaypath(const char *path, const char *prefix) { const char *super_prefix = get_super_prefix(); if (prefix && super_prefix) { BUG("cannot have prefix '%s' and superprefix '%s'", prefix, super_prefix); } else if (prefix) { struct strbuf sb = STRBUF_INIT; char *displaypath = xstrdup(relative_path(path, prefix, &sb)); strbuf_release(&sb); return displaypath; } else if (super_prefix) { return xstrfmt("%s%s", super_prefix, path); } else { return xstrdup(path); } } static char *compute_rev_name(const char *sub_path, const char* object_id) { struct strbuf sb = STRBUF_INIT; const char ***d; static const char *describe_bare[] = { NULL }; static const char *describe_tags[] = { "--tags", NULL }; static const char *describe_contains[] = { "--contains", NULL }; static const char *describe_all_always[] = { "--all", "--always", NULL }; static const char **describe_argv[] = { describe_bare, describe_tags, describe_contains, describe_all_always, NULL }; for (d = describe_argv; *d; d++) { struct child_process cp = CHILD_PROCESS_INIT; prepare_submodule_repo_env(&cp.env_array); cp.dir = sub_path; cp.git_cmd = 1; cp.no_stderr = 1; strvec_push(&cp.args, "describe"); strvec_pushv(&cp.args, *d); strvec_push(&cp.args, object_id); if (!capture_command(&cp, &sb, 0)) { strbuf_strip_suffix(&sb, "\n"); return strbuf_detach(&sb, NULL); } } strbuf_release(&sb); return NULL; } struct module_list { const struct cache_entry **entries; int alloc, nr; }; #define MODULE_LIST_INIT { 0 } static int module_list_compute(int argc, const char **argv, const char *prefix, struct pathspec *pathspec, struct module_list *list) { int i, result = 0; char *ps_matched = NULL; parse_pathspec(pathspec, 0, PATHSPEC_PREFER_FULL, prefix, argv); if (pathspec->nr) ps_matched = xcalloc(pathspec->nr, 1); if (read_cache() < 0) die(_("index file corrupt")); for (i = 0; i < active_nr; i++) { const struct cache_entry *ce = active_cache[i]; if (!match_pathspec(&the_index, pathspec, ce->name, ce_namelen(ce), 0, ps_matched, 1) || !S_ISGITLINK(ce->ce_mode)) continue; ALLOC_GROW(list->entries, list->nr + 1, list->alloc); list->entries[list->nr++] = ce; while (i + 1 < active_nr && !strcmp(ce->name, active_cache[i + 1]->name)) /* * Skip entries with the same name in different stages * to make sure an entry is returned only once. */ i++; } if (ps_matched && report_path_error(ps_matched, pathspec)) result = -1; free(ps_matched); return result; } static void module_list_active(struct module_list *list) { int i; struct module_list active_modules = MODULE_LIST_INIT; for (i = 0; i < list->nr; i++) { const struct cache_entry *ce = list->entries[i]; if (!is_submodule_active(the_repository, ce->name)) continue; ALLOC_GROW(active_modules.entries, active_modules.nr + 1, active_modules.alloc); active_modules.entries[active_modules.nr++] = ce; } free(list->entries); *list = active_modules; } static char *get_up_path(const char *path) { int i; struct strbuf sb = STRBUF_INIT; for (i = count_slashes(path); i; i--) strbuf_addstr(&sb, "../"); /* * Check if 'path' ends with slash or not * for having the same output for dir/sub_dir * and dir/sub_dir/ */ if (!is_dir_sep(path[strlen(path) - 1])) strbuf_addstr(&sb, "../"); return strbuf_detach(&sb, NULL); } static int module_list(int argc, const char **argv, const char *prefix) { int i; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; struct option module_list_options[] = { OPT_STRING(0, "prefix", &prefix, N_("path"), N_("alternative anchor for relative paths")), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper list [--prefix=] [...]"), NULL }; argc = parse_options(argc, argv, prefix, module_list_options, git_submodule_helper_usage, 0); if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) return 1; for (i = 0; i < list.nr; i++) { const struct cache_entry *ce = list.entries[i]; if (ce_stage(ce)) printf("%06o %s U\t", ce->ce_mode, oid_to_hex(null_oid())); else printf("%06o %s %d\t", ce->ce_mode, oid_to_hex(&ce->oid), ce_stage(ce)); fprintf(stdout, "%s\n", ce->name); } return 0; } static void for_each_listed_submodule(const struct module_list *list, each_submodule_fn fn, void *cb_data) { int i; for (i = 0; i < list->nr; i++) fn(list->entries[i], cb_data); } struct foreach_cb { int argc; const char **argv; const char *prefix; int quiet; int recursive; }; #define FOREACH_CB_INIT { 0 } static void runcommand_in_submodule_cb(const struct cache_entry *list_item, void *cb_data) { struct foreach_cb *info = cb_data; const char *path = list_item->name; const struct object_id *ce_oid = &list_item->oid; const struct submodule *sub; struct child_process cp = CHILD_PROCESS_INIT; char *displaypath; displaypath = get_submodule_displaypath(path, info->prefix); sub = submodule_from_path(the_repository, null_oid(), path); if (!sub) die(_("No url found for submodule path '%s' in .gitmodules"), displaypath); if (!is_submodule_populated_gently(path, NULL)) goto cleanup; prepare_submodule_repo_env(&cp.env_array); /* * For the purpose of executing in the submodule, * separate shell is used for the purpose of running the * child process. */ cp.use_shell = 1; cp.dir = path; /* * NEEDSWORK: the command currently has access to the variables $name, * $sm_path, $displaypath, $sha1 and $toplevel only when the command * contains a single argument. This is done for maintaining a faithful * translation from shell script. */ if (info->argc == 1) { char *toplevel = xgetcwd(); struct strbuf sb = STRBUF_INIT; strvec_pushf(&cp.env_array, "name=%s", sub->name); strvec_pushf(&cp.env_array, "sm_path=%s", path); strvec_pushf(&cp.env_array, "displaypath=%s", displaypath); strvec_pushf(&cp.env_array, "sha1=%s", oid_to_hex(ce_oid)); strvec_pushf(&cp.env_array, "toplevel=%s", toplevel); /* * Since the path variable was accessible from the script * before porting, it is also made available after porting. * The environment variable "PATH" has a very special purpose * on windows. And since environment variables are * case-insensitive in windows, it interferes with the * existing PATH variable. Hence, to avoid that, we expose * path via the args strvec and not via env_array. */ sq_quote_buf(&sb, path); strvec_pushf(&cp.args, "path=%s; %s", sb.buf, info->argv[0]); strbuf_release(&sb); free(toplevel); } else { strvec_pushv(&cp.args, info->argv); } if (!info->quiet) printf(_("Entering '%s'\n"), displaypath); if (info->argv[0] && run_command(&cp)) die(_("run_command returned non-zero status for %s\n."), displaypath); if (info->recursive) { struct child_process cpr = CHILD_PROCESS_INIT; cpr.git_cmd = 1; cpr.dir = path; prepare_submodule_repo_env(&cpr.env_array); strvec_pushl(&cpr.args, "--super-prefix", NULL); strvec_pushf(&cpr.args, "%s/", displaypath); strvec_pushl(&cpr.args, "submodule--helper", "foreach", "--recursive", NULL); if (info->quiet) strvec_push(&cpr.args, "--quiet"); strvec_push(&cpr.args, "--"); strvec_pushv(&cpr.args, info->argv); if (run_command(&cpr)) die(_("run_command returned non-zero status while " "recursing in the nested submodules of %s\n."), displaypath); } cleanup: free(displaypath); } static int module_foreach(int argc, const char **argv, const char *prefix) { struct foreach_cb info = FOREACH_CB_INIT; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; struct option module_foreach_options[] = { OPT__QUIET(&info.quiet, N_("suppress output of entering each submodule command")), OPT_BOOL(0, "recursive", &info.recursive, N_("recurse into nested submodules")), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper foreach [--quiet] [--recursive] [--] "), NULL }; argc = parse_options(argc, argv, prefix, module_foreach_options, git_submodule_helper_usage, 0); if (module_list_compute(0, NULL, prefix, &pathspec, &list) < 0) return 1; info.argc = argc; info.argv = argv; info.prefix = prefix; for_each_listed_submodule(&list, runcommand_in_submodule_cb, &info); return 0; } struct init_cb { const char *prefix; unsigned int flags; }; #define INIT_CB_INIT { 0 } static void init_submodule(const char *path, const char *prefix, unsigned int flags) { const struct submodule *sub; struct strbuf sb = STRBUF_INIT; char *upd = NULL, *url = NULL, *displaypath; displaypath = get_submodule_displaypath(path, prefix); sub = submodule_from_path(the_repository, null_oid(), path); if (!sub) die(_("No url found for submodule path '%s' in .gitmodules"), displaypath); /* * NEEDSWORK: In a multi-working-tree world, this needs to be * set in the per-worktree config. * * Set active flag for the submodule being initialized */ if (!is_submodule_active(the_repository, path)) { strbuf_addf(&sb, "submodule.%s.active", sub->name); git_config_set_gently(sb.buf, "true"); strbuf_reset(&sb); } /* * Copy url setting when it is not set yet. * To look up the url in .git/config, we must not fall back to * .gitmodules, so look it up directly. */ strbuf_addf(&sb, "submodule.%s.url", sub->name); if (git_config_get_string(sb.buf, &url)) { if (!sub->url) die(_("No url found for submodule path '%s' in .gitmodules"), displaypath); url = xstrdup(sub->url); /* Possibly a url relative to parent */ if (starts_with_dot_dot_slash(url) || starts_with_dot_slash(url)) { char *oldurl = url; url = resolve_relative_url(oldurl, NULL, 0); free(oldurl); } if (git_config_set_gently(sb.buf, url)) die(_("Failed to register url for submodule path '%s'"), displaypath); if (!(flags & OPT_QUIET)) fprintf(stderr, _("Submodule '%s' (%s) registered for path '%s'\n"), sub->name, url, displaypath); } strbuf_reset(&sb); /* Copy "update" setting when it is not set yet */ strbuf_addf(&sb, "submodule.%s.update", sub->name); if (git_config_get_string(sb.buf, &upd) && sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) { if (sub->update_strategy.type == SM_UPDATE_COMMAND) { fprintf(stderr, _("warning: command update mode suggested for submodule '%s'\n"), sub->name); upd = xstrdup("none"); } else upd = xstrdup(submodule_strategy_to_string(&sub->update_strategy)); if (git_config_set_gently(sb.buf, upd)) die(_("Failed to register update mode for submodule path '%s'"), displaypath); } strbuf_release(&sb); free(displaypath); free(url); free(upd); } static void init_submodule_cb(const struct cache_entry *list_item, void *cb_data) { struct init_cb *info = cb_data; init_submodule(list_item->name, info->prefix, info->flags); } static int module_init(int argc, const char **argv, const char *prefix) { struct init_cb info = INIT_CB_INIT; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; int quiet = 0; struct option module_init_options[] = { OPT__QUIET(&quiet, N_("suppress output for initializing a submodule")), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper init [] []"), NULL }; argc = parse_options(argc, argv, prefix, module_init_options, git_submodule_helper_usage, 0); if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) return 1; /* * If there are no path args and submodule.active is set then, * by default, only initialize 'active' modules. */ if (!argc && git_config_get_value_multi("submodule.active")) module_list_active(&list); info.prefix = prefix; if (quiet) info.flags |= OPT_QUIET; for_each_listed_submodule(&list, init_submodule_cb, &info); return 0; } struct status_cb { const char *prefix; unsigned int flags; }; #define STATUS_CB_INIT { 0 } static void print_status(unsigned int flags, char state, const char *path, const struct object_id *oid, const char *displaypath) { if (flags & OPT_QUIET) return; printf("%c%s %s", state, oid_to_hex(oid), displaypath); if (state == ' ' || state == '+') { const char *name = compute_rev_name(path, oid_to_hex(oid)); if (name) printf(" (%s)", name); } printf("\n"); } static int handle_submodule_head_ref(const char *refname, const struct object_id *oid, int flags, void *cb_data) { struct object_id *output = cb_data; if (oid) oidcpy(output, oid); return 0; } static void status_submodule(const char *path, const struct object_id *ce_oid, unsigned int ce_flags, const char *prefix, unsigned int flags) { char *displaypath; struct strvec diff_files_args = STRVEC_INIT; struct rev_info rev; int diff_files_result; struct strbuf buf = STRBUF_INIT; const char *git_dir; if (!submodule_from_path(the_repository, null_oid(), path)) die(_("no submodule mapping found in .gitmodules for path '%s'"), path); displaypath = get_submodule_displaypath(path, prefix); if ((CE_STAGEMASK & ce_flags) >> CE_STAGESHIFT) { print_status(flags, 'U', path, null_oid(), displaypath); goto cleanup; } strbuf_addf(&buf, "%s/.git", path); git_dir = read_gitfile(buf.buf); if (!git_dir) git_dir = buf.buf; if (!is_submodule_active(the_repository, path) || !is_git_directory(git_dir)) { print_status(flags, '-', path, ce_oid, displaypath); strbuf_release(&buf); goto cleanup; } strbuf_release(&buf); strvec_pushl(&diff_files_args, "diff-files", "--ignore-submodules=dirty", "--quiet", "--", path, NULL); git_config(git_diff_basic_config, NULL); repo_init_revisions(the_repository, &rev, NULL); rev.abbrev = 0; diff_files_args.nr = setup_revisions(diff_files_args.nr, diff_files_args.v, &rev, NULL); diff_files_result = run_diff_files(&rev, 0); if (!diff_result_code(&rev.diffopt, diff_files_result)) { print_status(flags, ' ', path, ce_oid, displaypath); } else if (!(flags & OPT_CACHED)) { struct object_id oid; struct ref_store *refs = get_submodule_ref_store(path); if (!refs) { print_status(flags, '-', path, ce_oid, displaypath); goto cleanup; } if (refs_head_ref(refs, handle_submodule_head_ref, &oid)) die(_("could not resolve HEAD ref inside the " "submodule '%s'"), path); print_status(flags, '+', path, &oid, displaypath); } else { print_status(flags, '+', path, ce_oid, displaypath); } if (flags & OPT_RECURSIVE) { struct child_process cpr = CHILD_PROCESS_INIT; cpr.git_cmd = 1; cpr.dir = path; prepare_submodule_repo_env(&cpr.env_array); strvec_push(&cpr.args, "--super-prefix"); strvec_pushf(&cpr.args, "%s/", displaypath); strvec_pushl(&cpr.args, "submodule--helper", "status", "--recursive", NULL); if (flags & OPT_CACHED) strvec_push(&cpr.args, "--cached"); if (flags & OPT_QUIET) strvec_push(&cpr.args, "--quiet"); if (run_command(&cpr)) die(_("failed to recurse into submodule '%s'"), path); } cleanup: strvec_clear(&diff_files_args); free(displaypath); } static void status_submodule_cb(const struct cache_entry *list_item, void *cb_data) { struct status_cb *info = cb_data; status_submodule(list_item->name, &list_item->oid, list_item->ce_flags, info->prefix, info->flags); } static int module_status(int argc, const char **argv, const char *prefix) { struct status_cb info = STATUS_CB_INIT; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; int quiet = 0; struct option module_status_options[] = { OPT__QUIET(&quiet, N_("suppress submodule status output")), OPT_BIT(0, "cached", &info.flags, N_("use commit stored in the index instead of the one stored in the submodule HEAD"), OPT_CACHED), OPT_BIT(0, "recursive", &info.flags, N_("recurse into nested submodules"), OPT_RECURSIVE), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule status [--quiet] [--cached] [--recursive] [...]"), NULL }; argc = parse_options(argc, argv, prefix, module_status_options, git_submodule_helper_usage, 0); if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) return 1; info.prefix = prefix; if (quiet) info.flags |= OPT_QUIET; for_each_listed_submodule(&list, status_submodule_cb, &info); return 0; } static int module_name(int argc, const char **argv, const char *prefix) { const struct submodule *sub; if (argc != 2) usage(_("git submodule--helper name ")); sub = submodule_from_path(the_repository, null_oid(), argv[1]); if (!sub) die(_("no submodule mapping found in .gitmodules for path '%s'"), argv[1]); printf("%s\n", sub->name); return 0; } struct module_cb { unsigned int mod_src; unsigned int mod_dst; struct object_id oid_src; struct object_id oid_dst; char status; const char *sm_path; }; #define MODULE_CB_INIT { 0 } struct module_cb_list { struct module_cb **entries; int alloc, nr; }; #define MODULE_CB_LIST_INIT { 0 } struct summary_cb { int argc; const char **argv; const char *prefix; unsigned int cached: 1; unsigned int for_status: 1; unsigned int files: 1; int summary_limit; }; #define SUMMARY_CB_INIT { 0 } enum diff_cmd { DIFF_INDEX, DIFF_FILES }; static char *verify_submodule_committish(const char *sm_path, const char *committish) { struct child_process cp_rev_parse = CHILD_PROCESS_INIT; struct strbuf result = STRBUF_INIT; cp_rev_parse.git_cmd = 1; cp_rev_parse.dir = sm_path; prepare_submodule_repo_env(&cp_rev_parse.env_array); strvec_pushl(&cp_rev_parse.args, "rev-parse", "-q", "--short", NULL); strvec_pushf(&cp_rev_parse.args, "%s^0", committish); strvec_push(&cp_rev_parse.args, "--"); if (capture_command(&cp_rev_parse, &result, 0)) return NULL; strbuf_trim_trailing_newline(&result); return strbuf_detach(&result, NULL); } static void print_submodule_summary(struct summary_cb *info, char *errmsg, int total_commits, const char *displaypath, const char *src_abbrev, const char *dst_abbrev, struct module_cb *p) { if (p->status == 'T') { if (S_ISGITLINK(p->mod_dst)) printf(_("* %s %s(blob)->%s(submodule)"), displaypath, src_abbrev, dst_abbrev); else printf(_("* %s %s(submodule)->%s(blob)"), displaypath, src_abbrev, dst_abbrev); } else { printf("* %s %s...%s", displaypath, src_abbrev, dst_abbrev); } if (total_commits < 0) printf(":\n"); else printf(" (%d):\n", total_commits); if (errmsg) { printf(_("%s"), errmsg); } else if (total_commits > 0) { struct child_process cp_log = CHILD_PROCESS_INIT; cp_log.git_cmd = 1; cp_log.dir = p->sm_path; prepare_submodule_repo_env(&cp_log.env_array); strvec_pushl(&cp_log.args, "log", NULL); if (S_ISGITLINK(p->mod_src) && S_ISGITLINK(p->mod_dst)) { if (info->summary_limit > 0) strvec_pushf(&cp_log.args, "-%d", info->summary_limit); strvec_pushl(&cp_log.args, "--pretty= %m %s", "--first-parent", NULL); strvec_pushf(&cp_log.args, "%s...%s", src_abbrev, dst_abbrev); } else if (S_ISGITLINK(p->mod_dst)) { strvec_pushl(&cp_log.args, "--pretty= > %s", "-1", dst_abbrev, NULL); } else { strvec_pushl(&cp_log.args, "--pretty= < %s", "-1", src_abbrev, NULL); } run_command(&cp_log); } printf("\n"); } static void generate_submodule_summary(struct summary_cb *info, struct module_cb *p) { char *displaypath, *src_abbrev = NULL, *dst_abbrev; int missing_src = 0, missing_dst = 0; char *errmsg = NULL; int total_commits = -1; if (!info->cached && oideq(&p->oid_dst, null_oid())) { if (S_ISGITLINK(p->mod_dst)) { struct ref_store *refs = get_submodule_ref_store(p->sm_path); if (refs) refs_head_ref(refs, handle_submodule_head_ref, &p->oid_dst); } else if (S_ISLNK(p->mod_dst) || S_ISREG(p->mod_dst)) { struct stat st; int fd = open(p->sm_path, O_RDONLY); if (fd < 0 || fstat(fd, &st) < 0 || index_fd(&the_index, &p->oid_dst, fd, &st, OBJ_BLOB, p->sm_path, 0)) error(_("couldn't hash object from '%s'"), p->sm_path); } else { /* for a submodule removal (mode:0000000), don't warn */ if (p->mod_dst) warning(_("unexpected mode %o\n"), p->mod_dst); } } if (S_ISGITLINK(p->mod_src)) { if (p->status != 'D') src_abbrev = verify_submodule_committish(p->sm_path, oid_to_hex(&p->oid_src)); if (!src_abbrev) { missing_src = 1; /* * As `rev-parse` failed, we fallback to getting * the abbreviated hash using oid_src. We do * this as we might still need the abbreviated * hash in cases like a submodule type change, etc. */ src_abbrev = xstrndup(oid_to_hex(&p->oid_src), 7); } } else { /* * The source does not point to a submodule. * So, we fallback to getting the abbreviation using * oid_src as we might still need the abbreviated * hash in cases like submodule add, etc. */ src_abbrev = xstrndup(oid_to_hex(&p->oid_src), 7); } if (S_ISGITLINK(p->mod_dst)) { dst_abbrev = verify_submodule_committish(p->sm_path, oid_to_hex(&p->oid_dst)); if (!dst_abbrev) { missing_dst = 1; /* * As `rev-parse` failed, we fallback to getting * the abbreviated hash using oid_dst. We do * this as we might still need the abbreviated * hash in cases like a submodule type change, etc. */ dst_abbrev = xstrndup(oid_to_hex(&p->oid_dst), 7); } } else { /* * The destination does not point to a submodule. * So, we fallback to getting the abbreviation using * oid_dst as we might still need the abbreviated * hash in cases like a submodule removal, etc. */ dst_abbrev = xstrndup(oid_to_hex(&p->oid_dst), 7); } displaypath = get_submodule_displaypath(p->sm_path, info->prefix); if (!missing_src && !missing_dst) { struct child_process cp_rev_list = CHILD_PROCESS_INIT; struct strbuf sb_rev_list = STRBUF_INIT; strvec_pushl(&cp_rev_list.args, "rev-list", "--first-parent", "--count", NULL); if (S_ISGITLINK(p->mod_src) && S_ISGITLINK(p->mod_dst)) strvec_pushf(&cp_rev_list.args, "%s...%s", src_abbrev, dst_abbrev); else strvec_push(&cp_rev_list.args, S_ISGITLINK(p->mod_src) ? src_abbrev : dst_abbrev); strvec_push(&cp_rev_list.args, "--"); cp_rev_list.git_cmd = 1; cp_rev_list.dir = p->sm_path; prepare_submodule_repo_env(&cp_rev_list.env_array); if (!capture_command(&cp_rev_list, &sb_rev_list, 0)) total_commits = atoi(sb_rev_list.buf); strbuf_release(&sb_rev_list); } else { /* * Don't give error msg for modification whose dst is not * submodule, i.e., deleted or changed to blob */ if (S_ISGITLINK(p->mod_dst)) { struct strbuf errmsg_str = STRBUF_INIT; if (missing_src && missing_dst) { strbuf_addf(&errmsg_str, " Warn: %s doesn't contain commits %s and %s\n", displaypath, oid_to_hex(&p->oid_src), oid_to_hex(&p->oid_dst)); } else { strbuf_addf(&errmsg_str, " Warn: %s doesn't contain commit %s\n", displaypath, missing_src ? oid_to_hex(&p->oid_src) : oid_to_hex(&p->oid_dst)); } errmsg = strbuf_detach(&errmsg_str, NULL); } } print_submodule_summary(info, errmsg, total_commits, displaypath, src_abbrev, dst_abbrev, p); free(displaypath); free(src_abbrev); free(dst_abbrev); } static void prepare_submodule_summary(struct summary_cb *info, struct module_cb_list *list) { int i; for (i = 0; i < list->nr; i++) { const struct submodule *sub; struct module_cb *p = list->entries[i]; struct strbuf sm_gitdir = STRBUF_INIT; if (p->status == 'D' || p->status == 'T') { generate_submodule_summary(info, p); continue; } if (info->for_status && p->status != 'A' && (sub = submodule_from_path(the_repository, null_oid(), p->sm_path))) { char *config_key = NULL; const char *value; int ignore_all = 0; config_key = xstrfmt("submodule.%s.ignore", sub->name); if (!git_config_get_string_tmp(config_key, &value)) ignore_all = !strcmp(value, "all"); else if (sub->ignore) ignore_all = !strcmp(sub->ignore, "all"); free(config_key); if (ignore_all) continue; } /* Also show added or modified modules which are checked out */ strbuf_addstr(&sm_gitdir, p->sm_path); if (is_nonbare_repository_dir(&sm_gitdir)) generate_submodule_summary(info, p); strbuf_release(&sm_gitdir); } } static void submodule_summary_callback(struct diff_queue_struct *q, struct diff_options *options, void *data) { int i; struct module_cb_list *list = data; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; struct module_cb *temp; if (!S_ISGITLINK(p->one->mode) && !S_ISGITLINK(p->two->mode)) continue; temp = (struct module_cb*)malloc(sizeof(struct module_cb)); temp->mod_src = p->one->mode; temp->mod_dst = p->two->mode; temp->oid_src = p->one->oid; temp->oid_dst = p->two->oid; temp->status = p->status; temp->sm_path = xstrdup(p->one->path); ALLOC_GROW(list->entries, list->nr + 1, list->alloc); list->entries[list->nr++] = temp; } } static const char *get_diff_cmd(enum diff_cmd diff_cmd) { switch (diff_cmd) { case DIFF_INDEX: return "diff-index"; case DIFF_FILES: return "diff-files"; default: BUG("bad diff_cmd value %d", diff_cmd); } } static int compute_summary_module_list(struct object_id *head_oid, struct summary_cb *info, enum diff_cmd diff_cmd) { struct strvec diff_args = STRVEC_INIT; struct rev_info rev; struct module_cb_list list = MODULE_CB_LIST_INIT; strvec_push(&diff_args, get_diff_cmd(diff_cmd)); if (info->cached) strvec_push(&diff_args, "--cached"); strvec_pushl(&diff_args, "--ignore-submodules=dirty", "--raw", NULL); if (head_oid) strvec_push(&diff_args, oid_to_hex(head_oid)); strvec_push(&diff_args, "--"); if (info->argc) strvec_pushv(&diff_args, info->argv); git_config(git_diff_basic_config, NULL); init_revisions(&rev, info->prefix); rev.abbrev = 0; precompose_argv_prefix(diff_args.nr, diff_args.v, NULL); setup_revisions(diff_args.nr, diff_args.v, &rev, NULL); rev.diffopt.output_format = DIFF_FORMAT_NO_OUTPUT | DIFF_FORMAT_CALLBACK; rev.diffopt.format_callback = submodule_summary_callback; rev.diffopt.format_callback_data = &list; if (!info->cached) { if (diff_cmd == DIFF_INDEX) setup_work_tree(); if (read_cache_preload(&rev.diffopt.pathspec) < 0) { perror("read_cache_preload"); return -1; } } else if (read_cache() < 0) { perror("read_cache"); return -1; } if (diff_cmd == DIFF_INDEX) run_diff_index(&rev, info->cached); else run_diff_files(&rev, 0); prepare_submodule_summary(info, &list); strvec_clear(&diff_args); return 0; } static int module_summary(int argc, const char **argv, const char *prefix) { struct summary_cb info = SUMMARY_CB_INIT; int cached = 0; int for_status = 0; int files = 0; int summary_limit = -1; enum diff_cmd diff_cmd = DIFF_INDEX; struct object_id head_oid; int ret; struct option module_summary_options[] = { OPT_BOOL(0, "cached", &cached, N_("use the commit stored in the index instead of the submodule HEAD")), OPT_BOOL(0, "files", &files, N_("compare the commit in the index with that in the submodule HEAD")), OPT_BOOL(0, "for-status", &for_status, N_("skip submodules with 'ignore_config' value set to 'all'")), OPT_INTEGER('n', "summary-limit", &summary_limit, N_("limit the summary size")), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper summary [] [] [--] []"), NULL }; argc = parse_options(argc, argv, prefix, module_summary_options, git_submodule_helper_usage, 0); if (!summary_limit) return 0; if (!get_oid(argc ? argv[0] : "HEAD", &head_oid)) { if (argc) { argv++; argc--; } } else if (!argc || !strcmp(argv[0], "HEAD")) { /* before the first commit: compare with an empty tree */ oidcpy(&head_oid, the_hash_algo->empty_tree); if (argc) { argv++; argc--; } } else { if (get_oid("HEAD", &head_oid)) die(_("could not fetch a revision for HEAD")); } if (files) { if (cached) die(_("options '%s' and '%s' cannot be used together"), "--cached", "--files"); diff_cmd = DIFF_FILES; } info.argc = argc; info.argv = argv; info.prefix = prefix; info.cached = !!cached; info.files = !!files; info.for_status = !!for_status; info.summary_limit = summary_limit; ret = compute_summary_module_list((diff_cmd == DIFF_INDEX) ? &head_oid : NULL, &info, diff_cmd); return ret; } struct sync_cb { const char *prefix; unsigned int flags; }; #define SYNC_CB_INIT { 0 } static void sync_submodule(const char *path, const char *prefix, unsigned int flags) { const struct submodule *sub; char *remote_key = NULL; char *sub_origin_url, *super_config_url, *displaypath; struct strbuf sb = STRBUF_INIT; struct child_process cp = CHILD_PROCESS_INIT; char *sub_config_path = NULL; if (!is_submodule_active(the_repository, path)) return; sub = submodule_from_path(the_repository, null_oid(), path); if (sub && sub->url) { if (starts_with_dot_dot_slash(sub->url) || starts_with_dot_slash(sub->url)) { char *up_path = get_up_path(path); sub_origin_url = resolve_relative_url(sub->url, up_path, 1); super_config_url = resolve_relative_url(sub->url, NULL, 1); free(up_path); } else { sub_origin_url = xstrdup(sub->url); super_config_url = xstrdup(sub->url); } } else { sub_origin_url = xstrdup(""); super_config_url = xstrdup(""); } displaypath = get_submodule_displaypath(path, prefix); if (!(flags & OPT_QUIET)) printf(_("Synchronizing submodule url for '%s'\n"), displaypath); strbuf_reset(&sb); strbuf_addf(&sb, "submodule.%s.url", sub->name); if (git_config_set_gently(sb.buf, super_config_url)) die(_("failed to register url for submodule path '%s'"), displaypath); if (!is_submodule_populated_gently(path, NULL)) goto cleanup; prepare_submodule_repo_env(&cp.env_array); cp.git_cmd = 1; cp.dir = path; strvec_pushl(&cp.args, "submodule--helper", "print-default-remote", NULL); strbuf_reset(&sb); if (capture_command(&cp, &sb, 0)) die(_("failed to get the default remote for submodule '%s'"), path); strbuf_strip_suffix(&sb, "\n"); remote_key = xstrfmt("remote.%s.url", sb.buf); strbuf_reset(&sb); submodule_to_gitdir(&sb, path); strbuf_addstr(&sb, "/config"); if (git_config_set_in_file_gently(sb.buf, remote_key, sub_origin_url)) die(_("failed to update remote for submodule '%s'"), path); if (flags & OPT_RECURSIVE) { struct child_process cpr = CHILD_PROCESS_INIT; cpr.git_cmd = 1; cpr.dir = path; prepare_submodule_repo_env(&cpr.env_array); strvec_push(&cpr.args, "--super-prefix"); strvec_pushf(&cpr.args, "%s/", displaypath); strvec_pushl(&cpr.args, "submodule--helper", "sync", "--recursive", NULL); if (flags & OPT_QUIET) strvec_push(&cpr.args, "--quiet"); if (run_command(&cpr)) die(_("failed to recurse into submodule '%s'"), path); } cleanup: free(super_config_url); free(sub_origin_url); strbuf_release(&sb); free(remote_key); free(displaypath); free(sub_config_path); } static void sync_submodule_cb(const struct cache_entry *list_item, void *cb_data) { struct sync_cb *info = cb_data; sync_submodule(list_item->name, info->prefix, info->flags); } static int module_sync(int argc, const char **argv, const char *prefix) { struct sync_cb info = SYNC_CB_INIT; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; int quiet = 0; int recursive = 0; struct option module_sync_options[] = { OPT__QUIET(&quiet, N_("suppress output of synchronizing submodule url")), OPT_BOOL(0, "recursive", &recursive, N_("recurse into nested submodules")), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper sync [--quiet] [--recursive] []"), NULL }; argc = parse_options(argc, argv, prefix, module_sync_options, git_submodule_helper_usage, 0); if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) return 1; info.prefix = prefix; if (quiet) info.flags |= OPT_QUIET; if (recursive) info.flags |= OPT_RECURSIVE; for_each_listed_submodule(&list, sync_submodule_cb, &info); return 0; } struct deinit_cb { const char *prefix; unsigned int flags; }; #define DEINIT_CB_INIT { 0 } static void deinit_submodule(const char *path, const char *prefix, unsigned int flags) { const struct submodule *sub; char *displaypath = NULL; struct child_process cp_config = CHILD_PROCESS_INIT; struct strbuf sb_config = STRBUF_INIT; char *sub_git_dir = xstrfmt("%s/.git", path); sub = submodule_from_path(the_repository, null_oid(), path); if (!sub || !sub->name) goto cleanup; displaypath = get_submodule_displaypath(path, prefix); /* remove the submodule work tree (unless the user already did it) */ if (is_directory(path)) { struct strbuf sb_rm = STRBUF_INIT; const char *format; if (is_directory(sub_git_dir)) { if (!(flags & OPT_QUIET)) warning(_("Submodule work tree '%s' contains a .git " "directory. This will be replaced with a " ".git file by using absorbgitdirs."), displaypath); absorb_git_dir_into_superproject(path, ABSORB_GITDIR_RECURSE_SUBMODULES); } if (!(flags & OPT_FORCE)) { struct child_process cp_rm = CHILD_PROCESS_INIT; cp_rm.git_cmd = 1; strvec_pushl(&cp_rm.args, "rm", "-qn", path, NULL); if (run_command(&cp_rm)) die(_("Submodule work tree '%s' contains local " "modifications; use '-f' to discard them"), displaypath); } strbuf_addstr(&sb_rm, path); if (!remove_dir_recursively(&sb_rm, 0)) format = _("Cleared directory '%s'\n"); else format = _("Could not remove submodule work tree '%s'\n"); if (!(flags & OPT_QUIET)) printf(format, displaypath); submodule_unset_core_worktree(sub); strbuf_release(&sb_rm); } if (mkdir(path, 0777)) printf(_("could not create empty submodule directory %s"), displaypath); cp_config.git_cmd = 1; strvec_pushl(&cp_config.args, "config", "--get-regexp", NULL); strvec_pushf(&cp_config.args, "submodule.%s\\.", sub->name); /* remove the .git/config entries (unless the user already did it) */ if (!capture_command(&cp_config, &sb_config, 0) && sb_config.len) { char *sub_key = xstrfmt("submodule.%s", sub->name); /* * remove the whole section so we have a clean state when * the user later decides to init this submodule again */ git_config_rename_section_in_file(NULL, sub_key, NULL); if (!(flags & OPT_QUIET)) printf(_("Submodule '%s' (%s) unregistered for path '%s'\n"), sub->name, sub->url, displaypath); free(sub_key); } cleanup: free(displaypath); free(sub_git_dir); strbuf_release(&sb_config); } static void deinit_submodule_cb(const struct cache_entry *list_item, void *cb_data) { struct deinit_cb *info = cb_data; deinit_submodule(list_item->name, info->prefix, info->flags); } static int module_deinit(int argc, const char **argv, const char *prefix) { struct deinit_cb info = DEINIT_CB_INIT; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; int quiet = 0; int force = 0; int all = 0; struct option module_deinit_options[] = { OPT__QUIET(&quiet, N_("suppress submodule status output")), OPT__FORCE(&force, N_("remove submodule working trees even if they contain local changes"), 0), OPT_BOOL(0, "all", &all, N_("unregister all submodules")), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule deinit [--quiet] [-f | --force] [--all | [--] [...]]"), NULL }; argc = parse_options(argc, argv, prefix, module_deinit_options, git_submodule_helper_usage, 0); if (all && argc) { error("pathspec and --all are incompatible"); usage_with_options(git_submodule_helper_usage, module_deinit_options); } if (!argc && !all) die(_("Use '--all' if you really want to deinitialize all submodules")); if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) return 1; info.prefix = prefix; if (quiet) info.flags |= OPT_QUIET; if (force) info.flags |= OPT_FORCE; for_each_listed_submodule(&list, deinit_submodule_cb, &info); return 0; } struct module_clone_data { const char *prefix; const char *path; const char *name; const char *url; const char *depth; struct list_objects_filter_options *filter_options; struct string_list reference; unsigned int quiet: 1; unsigned int progress: 1; unsigned int dissociate: 1; unsigned int require_init: 1; int single_branch; }; #define MODULE_CLONE_DATA_INIT { .reference = STRING_LIST_INIT_NODUP, .single_branch = -1 } struct submodule_alternate_setup { const char *submodule_name; enum SUBMODULE_ALTERNATE_ERROR_MODE { SUBMODULE_ALTERNATE_ERROR_DIE, SUBMODULE_ALTERNATE_ERROR_INFO, SUBMODULE_ALTERNATE_ERROR_IGNORE } error_mode; struct string_list *reference; }; #define SUBMODULE_ALTERNATE_SETUP_INIT { \ .error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE, \ } static const char alternate_error_advice[] = N_( "An alternate computed from a superproject's alternate is invalid.\n" "To allow Git to clone without an alternate in such a case, set\n" "submodule.alternateErrorStrategy to 'info' or, equivalently, clone with\n" "'--reference-if-able' instead of '--reference'." ); static int add_possible_reference_from_superproject( struct object_directory *odb, void *sas_cb) { struct submodule_alternate_setup *sas = sas_cb; size_t len; /* * If the alternate object store is another repository, try the * standard layout with .git/(modules/)+/objects */ if (strip_suffix(odb->path, "/objects", &len)) { struct repository alternate; char *sm_alternate; struct strbuf sb = STRBUF_INIT; struct strbuf err = STRBUF_INIT; strbuf_add(&sb, odb->path, len); repo_init(&alternate, sb.buf, NULL); /* * We need to end the new path with '/' to mark it as a dir, * otherwise a submodule name containing '/' will be broken * as the last part of a missing submodule reference would * be taken as a file name. */ strbuf_reset(&sb); submodule_name_to_gitdir(&sb, &alternate, sas->submodule_name); strbuf_addch(&sb, '/'); repo_clear(&alternate); sm_alternate = compute_alternate_path(sb.buf, &err); if (sm_alternate) { string_list_append(sas->reference, xstrdup(sb.buf)); free(sm_alternate); } else { switch (sas->error_mode) { case SUBMODULE_ALTERNATE_ERROR_DIE: if (advice_enabled(ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE)) advise(_(alternate_error_advice)); die(_("submodule '%s' cannot add alternate: %s"), sas->submodule_name, err.buf); case SUBMODULE_ALTERNATE_ERROR_INFO: fprintf_ln(stderr, _("submodule '%s' cannot add alternate: %s"), sas->submodule_name, err.buf); case SUBMODULE_ALTERNATE_ERROR_IGNORE: ; /* nothing */ } } strbuf_release(&sb); } return 0; } static void prepare_possible_alternates(const char *sm_name, struct string_list *reference) { char *sm_alternate = NULL, *error_strategy = NULL; struct submodule_alternate_setup sas = SUBMODULE_ALTERNATE_SETUP_INIT; git_config_get_string("submodule.alternateLocation", &sm_alternate); if (!sm_alternate) return; git_config_get_string("submodule.alternateErrorStrategy", &error_strategy); if (!error_strategy) error_strategy = xstrdup("die"); sas.submodule_name = sm_name; sas.reference = reference; if (!strcmp(error_strategy, "die")) sas.error_mode = SUBMODULE_ALTERNATE_ERROR_DIE; else if (!strcmp(error_strategy, "info")) sas.error_mode = SUBMODULE_ALTERNATE_ERROR_INFO; else if (!strcmp(error_strategy, "ignore")) sas.error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE; else die(_("Value '%s' for submodule.alternateErrorStrategy is not recognized"), error_strategy); if (!strcmp(sm_alternate, "superproject")) foreach_alt_odb(add_possible_reference_from_superproject, &sas); else if (!strcmp(sm_alternate, "no")) ; /* do nothing */ else die(_("Value '%s' for submodule.alternateLocation is not recognized"), sm_alternate); free(sm_alternate); free(error_strategy); } static int clone_submodule(struct module_clone_data *clone_data) { char *p, *sm_gitdir; char *sm_alternate = NULL, *error_strategy = NULL; struct strbuf sb = STRBUF_INIT; struct child_process cp = CHILD_PROCESS_INIT; submodule_name_to_gitdir(&sb, the_repository, clone_data->name); sm_gitdir = absolute_pathdup(sb.buf); strbuf_reset(&sb); if (!is_absolute_path(clone_data->path)) { strbuf_addf(&sb, "%s/%s", get_git_work_tree(), clone_data->path); clone_data->path = strbuf_detach(&sb, NULL); } else { clone_data->path = xstrdup(clone_data->path); } if (validate_submodule_git_dir(sm_gitdir, clone_data->name) < 0) die(_("refusing to create/use '%s' in another submodule's " "git dir"), sm_gitdir); 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(clone_data->name, &clone_data->reference); strvec_push(&cp.args, "clone"); strvec_push(&cp.args, "--no-checkout"); if (clone_data->quiet) strvec_push(&cp.args, "--quiet"); if (clone_data->progress) strvec_push(&cp.args, "--progress"); if (clone_data->depth && *(clone_data->depth)) strvec_pushl(&cp.args, "--depth", clone_data->depth, NULL); if (clone_data->reference.nr) { struct string_list_item *item; for_each_string_list_item(item, &clone_data->reference) strvec_pushl(&cp.args, "--reference", item->string, NULL); } if (clone_data->dissociate) strvec_push(&cp.args, "--dissociate"); if (sm_gitdir && *sm_gitdir) strvec_pushl(&cp.args, "--separate-git-dir", sm_gitdir, NULL); if (clone_data->filter_options && clone_data->filter_options->choice) strvec_pushf(&cp.args, "--filter=%s", expand_list_objects_filter_spec( clone_data->filter_options)); if (clone_data->single_branch >= 0) strvec_push(&cp.args, clone_data->single_branch ? "--single-branch" : "--no-single-branch"); strvec_push(&cp.args, "--"); strvec_push(&cp.args, clone_data->url); strvec_push(&cp.args, clone_data->path); cp.git_cmd = 1; prepare_submodule_repo_env(&cp.env_array); cp.no_stdin = 1; if(run_command(&cp)) die(_("clone of '%s' into submodule path '%s' failed"), clone_data->url, clone_data->path); } else { if (clone_data->require_init && !access(clone_data->path, X_OK) && !is_empty_dir(clone_data->path)) die(_("directory not empty: '%s'"), clone_data->path); if (safe_create_leading_directories_const(clone_data->path) < 0) die(_("could not create directory '%s'"), clone_data->path); strbuf_addf(&sb, "%s/index", sm_gitdir); unlink_or_warn(sb.buf); strbuf_reset(&sb); } connect_work_tree_and_git_dir(clone_data->path, sm_gitdir, 0); p = git_pathdup_submodule(clone_data->path, "config"); if (!p) die(_("could not get submodule directory for '%s'"), clone_data->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(p); return 0; } static int module_clone(int argc, const char **argv, const char *prefix) { int dissociate = 0, quiet = 0, progress = 0, require_init = 0; struct module_clone_data clone_data = MODULE_CLONE_DATA_INIT; struct list_objects_filter_options filter_options; struct option module_clone_options[] = { OPT_STRING(0, "prefix", &clone_data.prefix, N_("path"), N_("alternative anchor for relative paths")), OPT_STRING(0, "path", &clone_data.path, N_("path"), N_("where the new submodule will be cloned to")), OPT_STRING(0, "name", &clone_data.name, N_("string"), N_("name of the new submodule")), OPT_STRING(0, "url", &clone_data.url, N_("string"), N_("url where to clone the submodule from")), OPT_STRING_LIST(0, "reference", &clone_data.reference, N_("repo"), N_("reference repository")), OPT_BOOL(0, "dissociate", &dissociate, N_("use --reference only while cloning")), OPT_STRING(0, "depth", &clone_data.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_BOOL(0, "require-init", &require_init, N_("disallow cloning into non-empty directory")), OPT_BOOL(0, "single-branch", &clone_data.single_branch, N_("clone only one branch, HEAD or --branch")), OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper clone [--prefix=] [--quiet] " "[--reference ] [--name ] [--depth ] " "[--single-branch] [--filter ]" "--url --path "), NULL }; memset(&filter_options, 0, sizeof(filter_options)); argc = parse_options(argc, argv, prefix, module_clone_options, git_submodule_helper_usage, 0); clone_data.dissociate = !!dissociate; clone_data.quiet = !!quiet; clone_data.progress = !!progress; clone_data.require_init = !!require_init; clone_data.filter_options = &filter_options; if (argc || !clone_data.url || !clone_data.path || !*(clone_data.path)) usage_with_options(git_submodule_helper_usage, module_clone_options); clone_submodule(&clone_data); list_objects_filter_release(&filter_options); return 0; } static void determine_submodule_update_strategy(struct repository *r, int just_cloned, const char *path, const char *update, struct submodule_update_strategy *out) { const struct submodule *sub = submodule_from_path(r, null_oid(), path); char *key; const char *val; key = xstrfmt("submodule.%s.update", sub->name); if (update) { if (parse_submodule_update_strategy(update, out) < 0) die(_("Invalid update mode '%s' for submodule path '%s'"), update, path); } else if (!repo_config_get_string_tmp(r, key, &val)) { if (parse_submodule_update_strategy(val, out) < 0) die(_("Invalid update mode '%s' configured for submodule path '%s'"), val, path); } else if (sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) { if (sub->update_strategy.type == SM_UPDATE_COMMAND) BUG("how did we read update = !command from .gitmodules?"); out->type = sub->update_strategy.type; out->command = sub->update_strategy.command; } else out->type = SM_UPDATE_CHECKOUT; if (just_cloned && (out->type == SM_UPDATE_MERGE || out->type == SM_UPDATE_REBASE || out->type == SM_UPDATE_NONE)) out->type = SM_UPDATE_CHECKOUT; free(key); } static int module_update_module_mode(int argc, const char **argv, const char *prefix) { const char *path, *update = NULL; int just_cloned; struct submodule_update_strategy update_strategy = { .type = SM_UPDATE_CHECKOUT }; if (argc < 3 || argc > 4) die("submodule--helper update-module-clone expects []"); just_cloned = git_config_int("just_cloned", argv[1]); path = argv[2]; if (argc == 4) update = argv[3]; determine_submodule_update_strategy(the_repository, just_cloned, path, update, &update_strategy); fputs(submodule_strategy_to_string(&update_strategy), stdout); return 0; } struct update_clone_data { const struct submodule *sub; struct object_id oid; unsigned just_cloned; }; struct submodule_update_clone { /* index into 'list', the list of submodules to look into for cloning */ int current; struct module_list list; unsigned warn_if_uninitialized : 1; /* update parameter passed via commandline */ struct submodule_update_strategy update; /* configuration parameters which are passed on to the children */ int progress; int quiet; int recommend_shallow; struct string_list references; int dissociate; unsigned require_init; const char *depth; const char *recursive_prefix; const char *prefix; int single_branch; struct list_objects_filter_options *filter_options; /* to be consumed by git-submodule.sh */ struct update_clone_data *update_clone; int update_clone_nr; int update_clone_alloc; /* If we want to stop as fast as possible and return an error */ unsigned quickstop : 1; /* failed clones to be retried again */ const struct cache_entry **failed_clones; int failed_clones_nr, failed_clones_alloc; int max_jobs; }; #define SUBMODULE_UPDATE_CLONE_INIT { \ .list = MODULE_LIST_INIT, \ .update = SUBMODULE_UPDATE_STRATEGY_INIT, \ .recommend_shallow = -1, \ .references = STRING_LIST_INIT_DUP, \ .single_branch = -1, \ .max_jobs = 1, \ } struct update_data { const char *recursive_prefix; const char *sm_path; const char *displaypath; struct object_id oid; struct object_id suboid; struct submodule_update_strategy update_strategy; int depth; unsigned int force: 1; unsigned int quiet: 1; unsigned int nofetch: 1; unsigned int just_cloned: 1; }; #define UPDATE_DATA_INIT { .update_strategy = SUBMODULE_UPDATE_STRATEGY_INIT } static void next_submodule_warn_missing(struct submodule_update_clone *suc, struct strbuf *out, const char *displaypath) { /* * Only mention uninitialized submodules when their * paths have been specified. */ if (suc->warn_if_uninitialized) { strbuf_addf(out, _("Submodule path '%s' not initialized"), displaypath); strbuf_addch(out, '\n'); strbuf_addstr(out, _("Maybe you want to use 'update --init'?")); strbuf_addch(out, '\n'); } } /** * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise. */ static int prepare_to_clone_next_submodule(const struct cache_entry *ce, struct child_process *child, struct submodule_update_clone *suc, struct strbuf *out) { const struct submodule *sub = NULL; const char *url = NULL; const char *update_string; enum submodule_update_type update_type; char *key; struct strbuf displaypath_sb = STRBUF_INIT; struct strbuf sb = STRBUF_INIT; const char *displaypath = NULL; int needs_cloning = 0; int need_free_url = 0; if (ce_stage(ce)) { if (suc->recursive_prefix) strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name); else strbuf_addstr(&sb, ce->name); strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf); strbuf_addch(out, '\n'); goto cleanup; } sub = submodule_from_path(the_repository, null_oid(), ce->name); if (suc->recursive_prefix) displaypath = relative_path(suc->recursive_prefix, ce->name, &displaypath_sb); else displaypath = ce->name; if (!sub) { next_submodule_warn_missing(suc, out, displaypath); goto cleanup; } key = xstrfmt("submodule.%s.update", sub->name); if (!repo_config_get_string_tmp(the_repository, key, &update_string)) { update_type = parse_submodule_update_type(update_string); } else { update_type = sub->update_strategy.type; } free(key); if (suc->update.type == SM_UPDATE_NONE || (suc->update.type == SM_UPDATE_UNSPECIFIED && update_type == SM_UPDATE_NONE)) { strbuf_addf(out, _("Skipping submodule '%s'"), displaypath); strbuf_addch(out, '\n'); goto cleanup; } /* Check if the submodule has been initialized. */ if (!is_submodule_active(the_repository, ce->name)) { next_submodule_warn_missing(suc, out, displaypath); goto cleanup; } strbuf_reset(&sb); strbuf_addf(&sb, "submodule.%s.url", sub->name); if (repo_config_get_string_tmp(the_repository, sb.buf, &url)) { if (starts_with_dot_slash(sub->url) || starts_with_dot_dot_slash(sub->url)) { url = resolve_relative_url(sub->url, NULL, 0); need_free_url = 1; } else url = sub->url; } strbuf_reset(&sb); strbuf_addf(&sb, "%s/.git", ce->name); needs_cloning = !file_exists(sb.buf); ALLOC_GROW(suc->update_clone, suc->update_clone_nr + 1, suc->update_clone_alloc); oidcpy(&suc->update_clone[suc->update_clone_nr].oid, &ce->oid); suc->update_clone[suc->update_clone_nr].just_cloned = needs_cloning; suc->update_clone[suc->update_clone_nr].sub = sub; suc->update_clone_nr++; if (!needs_cloning) goto cleanup; child->git_cmd = 1; child->no_stdin = 1; child->stdout_to_stderr = 1; child->err = -1; strvec_push(&child->args, "submodule--helper"); strvec_push(&child->args, "clone"); if (suc->progress) strvec_push(&child->args, "--progress"); if (suc->quiet) strvec_push(&child->args, "--quiet"); if (suc->prefix) strvec_pushl(&child->args, "--prefix", suc->prefix, NULL); if (suc->recommend_shallow && sub->recommend_shallow == 1) strvec_push(&child->args, "--depth=1"); if (suc->filter_options && suc->filter_options->choice) strvec_pushf(&child->args, "--filter=%s", expand_list_objects_filter_spec(suc->filter_options)); if (suc->require_init) strvec_push(&child->args, "--require-init"); strvec_pushl(&child->args, "--path", sub->path, NULL); strvec_pushl(&child->args, "--name", sub->name, NULL); strvec_pushl(&child->args, "--url", url, NULL); if (suc->references.nr) { struct string_list_item *item; for_each_string_list_item(item, &suc->references) strvec_pushl(&child->args, "--reference", item->string, NULL); } if (suc->dissociate) strvec_push(&child->args, "--dissociate"); if (suc->depth) strvec_push(&child->args, suc->depth); if (suc->single_branch >= 0) strvec_push(&child->args, suc->single_branch ? "--single-branch" : "--no-single-branch"); cleanup: strbuf_release(&displaypath_sb); strbuf_release(&sb); if (need_free_url) free((void*)url); return needs_cloning; } static int update_clone_get_next_task(struct child_process *child, struct strbuf *err, void *suc_cb, void **idx_task_cb) { struct submodule_update_clone *suc = suc_cb; const struct cache_entry *ce; int index; for (; suc->current < suc->list.nr; suc->current++) { ce = suc->list.entries[suc->current]; if (prepare_to_clone_next_submodule(ce, child, suc, err)) { int *p = xmalloc(sizeof(*p)); *p = suc->current; *idx_task_cb = p; suc->current++; return 1; } } /* * The loop above tried cloning each submodule once, now try the * stragglers again, which we can imagine as an extension of the * entry list. */ index = suc->current - suc->list.nr; if (index < suc->failed_clones_nr) { int *p; ce = suc->failed_clones[index]; if (!prepare_to_clone_next_submodule(ce, child, suc, err)) { suc->current ++; strbuf_addstr(err, "BUG: submodule considered for " "cloning, doesn't need cloning " "any more?\n"); return 0; } p = xmalloc(sizeof(*p)); *p = suc->current; *idx_task_cb = p; suc->current ++; return 1; } return 0; } static int update_clone_start_failure(struct strbuf *err, void *suc_cb, void *idx_task_cb) { struct submodule_update_clone *suc = suc_cb; suc->quickstop = 1; return 1; } static int update_clone_task_finished(int result, struct strbuf *err, void *suc_cb, void *idx_task_cb) { const struct cache_entry *ce; struct submodule_update_clone *suc = suc_cb; int *idxP = idx_task_cb; int idx = *idxP; free(idxP); if (!result) return 0; if (idx < suc->list.nr) { ce = suc->list.entries[idx]; strbuf_addf(err, _("Failed to clone '%s'. Retry scheduled"), ce->name); strbuf_addch(err, '\n'); ALLOC_GROW(suc->failed_clones, suc->failed_clones_nr + 1, suc->failed_clones_alloc); suc->failed_clones[suc->failed_clones_nr++] = ce; return 0; } else { idx -= suc->list.nr; ce = suc->failed_clones[idx]; strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"), ce->name); strbuf_addch(err, '\n'); suc->quickstop = 1; return 1; } return 0; } static int git_update_clone_config(const char *var, const char *value, void *cb) { int *max_jobs = cb; if (!strcmp(var, "submodule.fetchjobs")) *max_jobs = parse_submodule_fetchjobs(var, value); return 0; } static int is_tip_reachable(const char *path, struct object_id *oid) { struct child_process cp = CHILD_PROCESS_INIT; struct strbuf rev = STRBUF_INIT; char *hex = oid_to_hex(oid); cp.git_cmd = 1; cp.dir = xstrdup(path); cp.no_stderr = 1; strvec_pushl(&cp.args, "rev-list", "-n", "1", hex, "--not", "--all", NULL); prepare_submodule_repo_env(&cp.env_array); if (capture_command(&cp, &rev, GIT_MAX_HEXSZ + 1) || rev.len) return 0; return 1; } static int fetch_in_submodule(const char *module_path, int depth, int quiet, struct object_id *oid) { struct child_process cp = CHILD_PROCESS_INIT; prepare_submodule_repo_env(&cp.env_array); cp.git_cmd = 1; cp.dir = xstrdup(module_path); strvec_push(&cp.args, "fetch"); if (quiet) strvec_push(&cp.args, "--quiet"); if (depth) strvec_pushf(&cp.args, "--depth=%d", depth); if (oid) { char *hex = oid_to_hex(oid); char *remote = get_default_remote(); strvec_pushl(&cp.args, remote, hex, NULL); } return run_command(&cp); } static int run_update_command(struct update_data *ud, int subforce) { struct strvec args = STRVEC_INIT; struct strvec child_env = STRVEC_INIT; char *oid = oid_to_hex(&ud->oid); int must_die_on_failure = 0; int git_cmd; switch (ud->update_strategy.type) { case SM_UPDATE_CHECKOUT: git_cmd = 1; strvec_pushl(&args, "checkout", "-q", NULL); if (subforce) strvec_push(&args, "-f"); break; case SM_UPDATE_REBASE: git_cmd = 1; strvec_push(&args, "rebase"); if (ud->quiet) strvec_push(&args, "--quiet"); must_die_on_failure = 1; break; case SM_UPDATE_MERGE: git_cmd = 1; strvec_push(&args, "merge"); if (ud->quiet) strvec_push(&args, "--quiet"); must_die_on_failure = 1; break; case SM_UPDATE_COMMAND: git_cmd = 0; strvec_push(&args, ud->update_strategy.command); must_die_on_failure = 1; break; default: BUG("unexpected update strategy type: %s", submodule_strategy_to_string(&ud->update_strategy)); } strvec_push(&args, oid); prepare_submodule_repo_env(&child_env); if (run_command_v_opt_cd_env(args.v, git_cmd ? RUN_GIT_CMD : RUN_USING_SHELL, ud->sm_path, child_env.v)) { switch (ud->update_strategy.type) { case SM_UPDATE_CHECKOUT: printf(_("Unable to checkout '%s' in submodule path '%s'"), oid, ud->displaypath); break; case SM_UPDATE_REBASE: printf(_("Unable to rebase '%s' in submodule path '%s'"), oid, ud->displaypath); break; case SM_UPDATE_MERGE: printf(_("Unable to merge '%s' in submodule path '%s'"), oid, ud->displaypath); break; case SM_UPDATE_COMMAND: printf(_("Execution of '%s %s' failed in submodule path '%s'"), ud->update_strategy.command, oid, ud->displaypath); break; default: BUG("unexpected update strategy type: %s", submodule_strategy_to_string(&ud->update_strategy)); } /* * NEEDSWORK: We are currently printing to stdout with error * return so that the shell caller handles the error output * properly. Once we start handling the error messages within * C, we should use die() instead. */ if (must_die_on_failure) return 2; /* * This signifies to the caller in shell that the command * failed without dying */ return 1; } switch (ud->update_strategy.type) { case SM_UPDATE_CHECKOUT: printf(_("Submodule path '%s': checked out '%s'\n"), ud->displaypath, oid); break; case SM_UPDATE_REBASE: printf(_("Submodule path '%s': rebased into '%s'\n"), ud->displaypath, oid); break; case SM_UPDATE_MERGE: printf(_("Submodule path '%s': merged in '%s'\n"), ud->displaypath, oid); break; case SM_UPDATE_COMMAND: printf(_("Submodule path '%s': '%s %s'\n"), ud->displaypath, ud->update_strategy.command, oid); break; default: BUG("unexpected update strategy type: %s", submodule_strategy_to_string(&ud->update_strategy)); } return 0; } static int do_run_update_procedure(struct update_data *ud) { int subforce = is_null_oid(&ud->suboid) || ud->force; if (!ud->nofetch) { /* * Run fetch only if `oid` isn't present or it * is not reachable from a ref. */ if (!is_tip_reachable(ud->sm_path, &ud->oid) && fetch_in_submodule(ud->sm_path, ud->depth, ud->quiet, NULL) && !ud->quiet) fprintf_ln(stderr, _("Unable to fetch in submodule path '%s'; " "trying to directly fetch %s:"), ud->displaypath, oid_to_hex(&ud->oid)); /* * Now we tried the usual fetch, but `oid` may * not be reachable from any of the refs. */ if (!is_tip_reachable(ud->sm_path, &ud->oid) && fetch_in_submodule(ud->sm_path, ud->depth, ud->quiet, &ud->oid)) die(_("Fetched in submodule path '%s', but it did not " "contain %s. Direct fetching of that commit failed."), ud->displaypath, oid_to_hex(&ud->oid)); } return run_update_command(ud, subforce); } static void update_submodule(struct update_clone_data *ucd) { fprintf(stdout, "dummy %s %d\t%s\n", oid_to_hex(&ucd->oid), ucd->just_cloned, ucd->sub->path); } static int update_submodules(struct submodule_update_clone *suc) { int i; run_processes_parallel_tr2(suc->max_jobs, update_clone_get_next_task, update_clone_start_failure, update_clone_task_finished, suc, "submodule", "parallel/update"); /* * We saved the output and put it out all at once now. * That means: * - the listener does not have to interleave their (checkout) * work with our fetching. The writes involved in a * checkout involve more straightforward sequential I/O. * - the listener can avoid doing any work if fetching failed. */ if (suc->quickstop) return 1; for (i = 0; i < suc->update_clone_nr; i++) update_submodule(&suc->update_clone[i]); return 0; } static int update_clone(int argc, const char **argv, const char *prefix) { const char *update = NULL; struct pathspec pathspec; struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT; struct list_objects_filter_options filter_options; int ret; struct option module_update_clone_options[] = { OPT_STRING(0, "prefix", &prefix, N_("path"), N_("path into the working tree")), OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix, N_("path"), N_("path into the working tree, across nested " "submodule boundaries")), OPT_STRING(0, "update", &update, N_("string"), N_("rebase, merge, checkout or none")), OPT_STRING_LIST(0, "reference", &suc.references, N_("repo"), N_("reference repository")), OPT_BOOL(0, "dissociate", &suc.dissociate, N_("use --reference only while cloning")), OPT_STRING(0, "depth", &suc.depth, "", N_("create a shallow clone truncated to the " "specified number of revisions")), OPT_INTEGER('j', "jobs", &suc.max_jobs, N_("parallel jobs")), OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow, N_("whether the initial clone should follow the shallow recommendation")), OPT__QUIET(&suc.quiet, N_("don't print cloning progress")), OPT_BOOL(0, "progress", &suc.progress, N_("force cloning progress")), OPT_BOOL(0, "require-init", &suc.require_init, N_("disallow cloning into non-empty directory")), OPT_BOOL(0, "single-branch", &suc.single_branch, N_("clone only one branch, HEAD or --branch")), OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper update-clone [--prefix=] [...]"), NULL }; suc.prefix = prefix; update_clone_config_from_gitmodules(&suc.max_jobs); git_config(git_update_clone_config, &suc.max_jobs); memset(&filter_options, 0, sizeof(filter_options)); argc = parse_options(argc, argv, prefix, module_update_clone_options, git_submodule_helper_usage, 0); suc.filter_options = &filter_options; if (update) if (parse_submodule_update_strategy(update, &suc.update) < 0) die(_("bad value for update parameter")); if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0) { list_objects_filter_release(&filter_options); return 1; } if (pathspec.nr) suc.warn_if_uninitialized = 1; ret = update_submodules(&suc); list_objects_filter_release(&filter_options); return ret; } static int run_update_procedure(int argc, const char **argv, const char *prefix) { int force = 0, quiet = 0, nofetch = 0, just_cloned = 0; char *prefixed_path, *update = NULL; struct update_data update_data = UPDATE_DATA_INIT; struct option options[] = { OPT__QUIET(&quiet, N_("suppress output for update by rebase or merge")), OPT__FORCE(&force, N_("force checkout updates"), 0), OPT_BOOL('N', "no-fetch", &nofetch, N_("don't fetch new objects from the remote site")), OPT_BOOL(0, "just-cloned", &just_cloned, N_("overrides update mode in case the repository is a fresh clone")), OPT_INTEGER(0, "depth", &update_data.depth, N_("depth for shallow fetch")), OPT_STRING(0, "prefix", &prefix, N_("path"), N_("path into the working tree")), OPT_STRING(0, "update", &update, N_("string"), N_("rebase, merge, checkout or none")), OPT_STRING(0, "recursive-prefix", &update_data.recursive_prefix, N_("path"), N_("path into the working tree, across nested " "submodule boundaries")), OPT_CALLBACK_F(0, "oid", &update_data.oid, N_("sha1"), N_("SHA1 expected by superproject"), PARSE_OPT_NONEG, parse_opt_object_id), OPT_CALLBACK_F(0, "suboid", &update_data.suboid, N_("subsha1"), N_("SHA1 of submodule's HEAD"), PARSE_OPT_NONEG, parse_opt_object_id), OPT_END() }; const char *const usage[] = { N_("git submodule--helper run-update-procedure [] "), NULL }; argc = parse_options(argc, argv, prefix, options, usage, 0); if (argc != 1) usage_with_options(usage, options); update_data.force = !!force; update_data.quiet = !!quiet; update_data.nofetch = !!nofetch; update_data.just_cloned = !!just_cloned; update_data.sm_path = argv[0]; if (update_data.recursive_prefix) prefixed_path = xstrfmt("%s%s", update_data.recursive_prefix, update_data.sm_path); else prefixed_path = xstrdup(update_data.sm_path); update_data.displaypath = get_submodule_displaypath(prefixed_path, prefix); determine_submodule_update_strategy(the_repository, update_data.just_cloned, update_data.sm_path, update, &update_data.update_strategy); free(prefixed_path); if (!oideq(&update_data.oid, &update_data.suboid) || update_data.force) return do_run_update_procedure(&update_data); return 3; } static int resolve_relative_path(int argc, const char **argv, const char *prefix) { struct strbuf sb = STRBUF_INIT; if (argc != 3) die("submodule--helper relative-path takes exactly 2 arguments, got %d", argc); printf("%s", relative_path(argv[1], argv[2], &sb)); strbuf_release(&sb); return 0; } static const char *remote_submodule_branch(const char *path) { const struct submodule *sub; const char *branch = NULL; char *key; sub = submodule_from_path(the_repository, null_oid(), path); if (!sub) return NULL; key = xstrfmt("submodule.%s.branch", sub->name); if (repo_config_get_string_tmp(the_repository, key, &branch)) branch = sub->branch; free(key); if (!branch) return "HEAD"; if (!strcmp(branch, ".")) { const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL); if (!refname) die(_("No such ref: %s"), "HEAD"); /* detached HEAD */ if (!strcmp(refname, "HEAD")) die(_("Submodule (%s) branch configured to inherit " "branch from superproject, but the superproject " "is not on any branch"), sub->name); if (!skip_prefix(refname, "refs/heads/", &refname)) die(_("Expecting a full ref name, got %s"), refname); return refname; } return branch; } static int resolve_remote_submodule_branch(int argc, const char **argv, const char *prefix) { const char *ret; struct strbuf sb = STRBUF_INIT; if (argc != 2) die("submodule--helper remote-branch takes exactly one arguments, got %d", argc); ret = remote_submodule_branch(argv[1]); if (!ret) die("submodule %s doesn't exist", argv[1]); printf("%s", ret); strbuf_release(&sb); return 0; } static int push_check(int argc, const char **argv, const char *prefix) { struct remote *remote; const char *superproject_head; char *head; int detached_head = 0; struct object_id head_oid; if (argc < 3) die("submodule--helper push-check requires at least 2 arguments"); /* * superproject's resolved head ref. * if HEAD then the superproject is in a detached head state, otherwise * it will be the resolved head ref. */ superproject_head = argv[1]; argv++; argc--; /* Get the submodule's head ref and determine if it is detached */ head = resolve_refdup("HEAD", 0, &head_oid, NULL); if (!head) die(_("Failed to resolve HEAD as a valid ref.")); if (!strcmp(head, "HEAD")) detached_head = 1; /* * The remote must be configured. * This is to avoid pushing to the exact same URL as the parent. */ remote = pushremote_get(argv[1]); if (!remote || remote->origin == REMOTE_UNCONFIGURED) die("remote '%s' not configured", argv[1]); /* Check the refspec */ if (argc > 2) { int i; struct ref *local_refs = get_local_heads(); struct refspec refspec = REFSPEC_INIT_PUSH; refspec_appendn(&refspec, argv + 2, argc - 2); for (i = 0; i < refspec.nr; i++) { const struct refspec_item *rs = &refspec.items[i]; if (rs->pattern || rs->matching) continue; /* LHS must match a single ref */ switch (count_refspec_match(rs->src, local_refs, NULL)) { case 1: break; case 0: /* * If LHS matches 'HEAD' then we need to ensure * that it matches the same named branch * checked out in the superproject. */ if (!strcmp(rs->src, "HEAD")) { if (!detached_head && !strcmp(head, superproject_head)) break; die("HEAD does not match the named branch in the superproject"); } /* fallthrough */ default: die("src refspec '%s' must name a ref", rs->src); } } refspec_clear(&refspec); } free(head); return 0; } static int ensure_core_worktree(int argc, const char **argv, const char *prefix) { const char *path; const char *cw; struct repository subrepo; if (argc != 2) BUG("submodule--helper ensure-core-worktree "); path = argv[1]; if (repo_submodule_init(&subrepo, the_repository, path, null_oid())) die(_("could not get a repository handle for submodule '%s'"), path); if (!repo_config_get_string_tmp(&subrepo, "core.worktree", &cw)) { char *cfg_file, *abs_path; const char *rel_path; struct strbuf sb = STRBUF_INIT; cfg_file = repo_git_path(&subrepo, "config"); abs_path = absolute_pathdup(path); rel_path = relative_path(abs_path, subrepo.gitdir, &sb); git_config_set_in_file(cfg_file, "core.worktree", rel_path); free(cfg_file); free(abs_path); strbuf_release(&sb); } return 0; } static int absorb_git_dirs(int argc, const char **argv, const char *prefix) { int i; struct pathspec pathspec; struct module_list list = MODULE_LIST_INIT; unsigned flags = ABSORB_GITDIR_RECURSE_SUBMODULES; struct option embed_gitdir_options[] = { OPT_STRING(0, "prefix", &prefix, N_("path"), N_("path into the working tree")), OPT_BIT(0, "--recursive", &flags, N_("recurse into submodules"), ABSORB_GITDIR_RECURSE_SUBMODULES), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper absorb-git-dirs [] [...]"), NULL }; argc = parse_options(argc, argv, prefix, embed_gitdir_options, git_submodule_helper_usage, 0); if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) return 1; for (i = 0; i < list.nr; i++) absorb_git_dir_into_superproject(list.entries[i]->name, flags); return 0; } static int is_active(int argc, const char **argv, const char *prefix) { if (argc != 2) die("submodule--helper is-active takes exactly 1 argument"); return !is_submodule_active(the_repository, argv[1]); } /* * Exit non-zero if any of the submodule names given on the command line is * invalid. If no names are given, filter stdin to print only valid names * (which is primarily intended for testing). */ static int check_name(int argc, const char **argv, const char *prefix) { if (argc > 1) { while (*++argv) { if (check_submodule_name(*argv) < 0) return 1; } } else { struct strbuf buf = STRBUF_INIT; while (strbuf_getline(&buf, stdin) != EOF) { if (!check_submodule_name(buf.buf)) printf("%s\n", buf.buf); } strbuf_release(&buf); } return 0; } static int module_config(int argc, const char **argv, const char *prefix) { enum { CHECK_WRITEABLE = 1, DO_UNSET = 2 } command = 0; struct option module_config_options[] = { OPT_CMDMODE(0, "check-writeable", &command, N_("check if it is safe to write to the .gitmodules file"), CHECK_WRITEABLE), OPT_CMDMODE(0, "unset", &command, N_("unset the config in the .gitmodules file"), DO_UNSET), OPT_END() }; const char *const git_submodule_helper_usage[] = { N_("git submodule--helper config []"), N_("git submodule--helper config --unset "), "git submodule--helper config --check-writeable", NULL }; argc = parse_options(argc, argv, prefix, module_config_options, git_submodule_helper_usage, PARSE_OPT_KEEP_ARGV0); if (argc == 1 && command == CHECK_WRITEABLE) return is_writing_gitmodules_ok() ? 0 : -1; /* Equivalent to ACTION_GET in builtin/config.c */ if (argc == 2 && command != DO_UNSET) return print_config_from_gitmodules(the_repository, argv[1]); /* Equivalent to ACTION_SET in builtin/config.c */ if (argc == 3 || (argc == 2 && command == DO_UNSET)) { const char *value = (argc == 3) ? argv[2] : NULL; if (!is_writing_gitmodules_ok()) die(_("please make sure that the .gitmodules file is in the working tree")); return config_set_in_gitmodules_file_gently(argv[1], value); } usage_with_options(git_submodule_helper_usage, module_config_options); } static int module_set_url(int argc, const char **argv, const char *prefix) { int quiet = 0; const char *newurl; const char *path; char *config_name; struct option options[] = { OPT__QUIET(&quiet, N_("suppress output for setting url of a submodule")), OPT_END() }; const char *const usage[] = { N_("git submodule--helper set-url [--quiet] "), NULL }; argc = parse_options(argc, argv, prefix, options, usage, 0); if (argc != 2 || !(path = argv[0]) || !(newurl = argv[1])) usage_with_options(usage, options); config_name = xstrfmt("submodule.%s.url", path); config_set_in_gitmodules_file_gently(config_name, newurl); sync_submodule(path, prefix, quiet ? OPT_QUIET : 0); free(config_name); return 0; } static int module_set_branch(int argc, const char **argv, const char *prefix) { int opt_default = 0, ret; const char *opt_branch = NULL; const char *path; char *config_name; /* * We accept the `quiet` option for uniformity across subcommands, * though there is nothing to make less verbose in this subcommand. */ struct option options[] = { OPT_NOOP_NOARG('q', "quiet"), OPT_BOOL('d', "default", &opt_default, N_("set the default tracking branch to master")), OPT_STRING('b', "branch", &opt_branch, N_("branch"), N_("set the default tracking branch")), OPT_END() }; const char *const usage[] = { N_("git submodule--helper set-branch [-q|--quiet] (-d|--default) "), N_("git submodule--helper set-branch [-q|--quiet] (-b|--branch) "), NULL }; argc = parse_options(argc, argv, prefix, options, usage, 0); if (!opt_branch && !opt_default) die(_("--branch or --default required")); if (opt_branch && opt_default) die(_("options '%s' and '%s' cannot be used together"), "--branch", "--default"); if (argc != 1 || !(path = argv[0])) usage_with_options(usage, options); config_name = xstrfmt("submodule.%s.branch", path); ret = config_set_in_gitmodules_file_gently(config_name, opt_branch); free(config_name); return !!ret; } static int module_create_branch(int argc, const char **argv, const char *prefix) { enum branch_track track; int quiet = 0, force = 0, reflog = 0, dry_run = 0; struct option options[] = { OPT__QUIET(&quiet, N_("print only error messages")), OPT__FORCE(&force, N_("force creation"), 0), OPT_BOOL(0, "create-reflog", &reflog, N_("create the branch's reflog")), OPT_SET_INT('t', "track", &track, N_("set up tracking mode (see git-pull(1))"), BRANCH_TRACK_EXPLICIT), OPT__DRY_RUN(&dry_run, N_("show whether the branch would be created")), OPT_END() }; const char *const usage[] = { N_("git submodule--helper create-branch [-f|--force] [--create-reflog] [-q|--quiet] [-t|--track] [-n|--dry-run] "), NULL }; git_config(git_default_config, NULL); track = git_branch_track; argc = parse_options(argc, argv, prefix, options, usage, 0); if (argc != 3) usage_with_options(usage, options); if (!quiet && !dry_run) printf_ln(_("creating branch '%s'"), argv[0]); create_branches_recursively(the_repository, argv[0], argv[1], argv[2], force, reflog, quiet, track, dry_run); return 0; } struct add_data { const char *prefix; const char *branch; const char *reference_path; char *sm_path; const char *sm_name; const char *repo; const char *realrepo; int depth; unsigned int force: 1; unsigned int quiet: 1; unsigned int progress: 1; unsigned int dissociate: 1; }; #define ADD_DATA_INIT { .depth = -1 } static void append_fetch_remotes(struct strbuf *msg, const char *git_dir_path) { struct child_process cp_remote = CHILD_PROCESS_INIT; struct strbuf sb_remote_out = STRBUF_INIT; cp_remote.git_cmd = 1; strvec_pushf(&cp_remote.env_array, "GIT_DIR=%s", git_dir_path); strvec_push(&cp_remote.env_array, "GIT_WORK_TREE=."); strvec_pushl(&cp_remote.args, "remote", "-v", NULL); if (!capture_command(&cp_remote, &sb_remote_out, 0)) { char *next_line; char *line = sb_remote_out.buf; while ((next_line = strchr(line, '\n')) != NULL) { size_t len = next_line - line; if (strip_suffix_mem(line, &len, " (fetch)")) strbuf_addf(msg, " %.*s\n", (int)len, line); line = next_line + 1; } } strbuf_release(&sb_remote_out); } static int add_submodule(const struct add_data *add_data) { char *submod_gitdir_path; struct module_clone_data clone_data = MODULE_CLONE_DATA_INIT; /* perhaps the path already exists and is already a git repo, else clone it */ if (is_directory(add_data->sm_path)) { struct strbuf sm_path = STRBUF_INIT; strbuf_addstr(&sm_path, add_data->sm_path); submod_gitdir_path = xstrfmt("%s/.git", add_data->sm_path); if (is_nonbare_repository_dir(&sm_path)) printf(_("Adding existing repo at '%s' to the index\n"), add_data->sm_path); else die(_("'%s' already exists and is not a valid git repo"), add_data->sm_path); strbuf_release(&sm_path); free(submod_gitdir_path); } else { struct child_process cp = CHILD_PROCESS_INIT; submod_gitdir_path = xstrfmt(".git/modules/%s", add_data->sm_name); if (is_directory(submod_gitdir_path)) { if (!add_data->force) { struct strbuf msg = STRBUF_INIT; char *die_msg; strbuf_addf(&msg, _("A git directory for '%s' is found " "locally with remote(s):\n"), add_data->sm_name); append_fetch_remotes(&msg, submod_gitdir_path); free(submod_gitdir_path); strbuf_addf(&msg, _("If you want to reuse this local git " "directory instead of cloning again from\n" " %s\n" "use the '--force' option. If the local git " "directory is not the correct repo\n" "or you are unsure what this means choose " "another name with the '--name' option."), add_data->realrepo); die_msg = strbuf_detach(&msg, NULL); die("%s", die_msg); } else { printf(_("Reactivating local git directory for " "submodule '%s'\n"), add_data->sm_name); } } free(submod_gitdir_path); clone_data.prefix = add_data->prefix; clone_data.path = add_data->sm_path; clone_data.name = add_data->sm_name; clone_data.url = add_data->realrepo; clone_data.quiet = add_data->quiet; clone_data.progress = add_data->progress; if (add_data->reference_path) string_list_append(&clone_data.reference, xstrdup(add_data->reference_path)); clone_data.dissociate = add_data->dissociate; if (add_data->depth >= 0) clone_data.depth = xstrfmt("%d", add_data->depth); if (clone_submodule(&clone_data)) return -1; prepare_submodule_repo_env(&cp.env_array); cp.git_cmd = 1; cp.dir = add_data->sm_path; /* * NOTE: we only get here if add_data->force is true, so * passing --force to checkout is reasonable. */ strvec_pushl(&cp.args, "checkout", "-f", "-q", NULL); if (add_data->branch) { strvec_pushl(&cp.args, "-B", add_data->branch, NULL); strvec_pushf(&cp.args, "origin/%s", add_data->branch); } if (run_command(&cp)) die(_("unable to checkout submodule '%s'"), add_data->sm_path); } return 0; } static int config_submodule_in_gitmodules(const char *name, const char *var, const char *value) { char *key; int ret; if (!is_writing_gitmodules_ok()) die(_("please make sure that the .gitmodules file is in the working tree")); key = xstrfmt("submodule.%s.%s", name, var); ret = config_set_in_gitmodules_file_gently(key, value); free(key); return ret; } static void configure_added_submodule(struct add_data *add_data) { char *key; char *val = NULL; struct child_process add_submod = CHILD_PROCESS_INIT; struct child_process add_gitmodules = CHILD_PROCESS_INIT; key = xstrfmt("submodule.%s.url", add_data->sm_name); git_config_set_gently(key, add_data->realrepo); free(key); add_submod.git_cmd = 1; strvec_pushl(&add_submod.args, "add", "--no-warn-embedded-repo", NULL); if (add_data->force) strvec_push(&add_submod.args, "--force"); strvec_pushl(&add_submod.args, "--", add_data->sm_path, NULL); if (run_command(&add_submod)) die(_("Failed to add submodule '%s'"), add_data->sm_path); if (config_submodule_in_gitmodules(add_data->sm_name, "path", add_data->sm_path) || config_submodule_in_gitmodules(add_data->sm_name, "url", add_data->repo)) die(_("Failed to register submodule '%s'"), add_data->sm_path); if (add_data->branch) { if (config_submodule_in_gitmodules(add_data->sm_name, "branch", add_data->branch)) die(_("Failed to register submodule '%s'"), add_data->sm_path); } add_gitmodules.git_cmd = 1; strvec_pushl(&add_gitmodules.args, "add", "--force", "--", ".gitmodules", NULL); if (run_command(&add_gitmodules)) die(_("Failed to register submodule '%s'"), add_data->sm_path); /* * NEEDSWORK: In a multi-working-tree world this needs to be * set in the per-worktree config. */ /* * NEEDSWORK: In the longer run, we need to get rid of this * pattern of querying "submodule.active" before calling * is_submodule_active(), since that function needs to find * out the value of "submodule.active" again anyway. */ if (!git_config_get_string("submodule.active", &val) && val) { /* * If the submodule being added isn't already covered by the * current configured pathspec, set the submodule's active flag */ if (!is_submodule_active(the_repository, add_data->sm_path)) { key = xstrfmt("submodule.%s.active", add_data->sm_name); git_config_set_gently(key, "true"); free(key); } } else { key = xstrfmt("submodule.%s.active", add_data->sm_name); git_config_set_gently(key, "true"); free(key); } } static void die_on_index_match(const char *path, int force) { struct pathspec ps; const char *args[] = { path, NULL }; parse_pathspec(&ps, 0, PATHSPEC_PREFER_CWD, NULL, args); if (read_cache_preload(NULL) < 0) die(_("index file corrupt")); if (ps.nr) { int i; char *ps_matched = xcalloc(ps.nr, 1); /* TODO: audit for interaction with sparse-index. */ ensure_full_index(&the_index); /* * Since there is only one pathspec, we just need * need to check ps_matched[0] to know if a cache * entry matched. */ for (i = 0; i < active_nr; i++) { ce_path_match(&the_index, active_cache[i], &ps, ps_matched); if (ps_matched[0]) { if (!force) die(_("'%s' already exists in the index"), path); if (!S_ISGITLINK(active_cache[i]->ce_mode)) die(_("'%s' already exists in the index " "and is not a submodule"), path); break; } } free(ps_matched); } clear_pathspec(&ps); } static void die_on_repo_without_commits(const char *path) { struct strbuf sb = STRBUF_INIT; strbuf_addstr(&sb, path); if (is_nonbare_repository_dir(&sb)) { struct object_id oid; if (resolve_gitlink_ref(path, "HEAD", &oid) < 0) die(_("'%s' does not have a commit checked out"), path); } strbuf_release(&sb); } static int module_add(int argc, const char **argv, const char *prefix) { int force = 0, quiet = 0, progress = 0, dissociate = 0; struct add_data add_data = ADD_DATA_INIT; char *to_free = NULL; struct option options[] = { OPT_STRING('b', "branch", &add_data.branch, N_("branch"), N_("branch of repository to add as submodule")), OPT__FORCE(&force, N_("allow adding an otherwise ignored submodule path"), PARSE_OPT_NOCOMPLETE), OPT__QUIET(&quiet, N_("print only error messages")), OPT_BOOL(0, "progress", &progress, N_("force cloning progress")), OPT_STRING(0, "reference", &add_data.reference_path, N_("repository"), N_("reference repository")), OPT_BOOL(0, "dissociate", &dissociate, N_("borrow the objects from reference repositories")), OPT_STRING(0, "name", &add_data.sm_name, N_("name"), N_("sets the submodule’s name to the given string " "instead of defaulting to its path")), OPT_INTEGER(0, "depth", &add_data.depth, N_("depth for shallow clones")), OPT_END() }; const char *const usage[] = { N_("git submodule--helper add [] [--] []"), NULL }; argc = parse_options(argc, argv, prefix, options, usage, 0); if (!is_writing_gitmodules_ok()) die(_("please make sure that the .gitmodules file is in the working tree")); if (prefix && *prefix && add_data.reference_path && !is_absolute_path(add_data.reference_path)) add_data.reference_path = xstrfmt("%s%s", prefix, add_data.reference_path); if (argc == 0 || argc > 2) usage_with_options(usage, options); add_data.repo = argv[0]; if (argc == 1) add_data.sm_path = git_url_basename(add_data.repo, 0, 0); else add_data.sm_path = xstrdup(argv[1]); if (prefix && *prefix && !is_absolute_path(add_data.sm_path)) add_data.sm_path = xstrfmt("%s%s", prefix, add_data.sm_path); if (starts_with_dot_dot_slash(add_data.repo) || starts_with_dot_slash(add_data.repo)) { if (prefix) die(_("Relative path can only be used from the toplevel " "of the working tree")); /* dereference source url relative to parent's url */ to_free = resolve_relative_url(add_data.repo, NULL, 1); add_data.realrepo = to_free; } else if (is_dir_sep(add_data.repo[0]) || strchr(add_data.repo, ':')) { add_data.realrepo = add_data.repo; } else { die(_("repo URL: '%s' must be absolute or begin with ./|../"), add_data.repo); } /* * normalize path: * multiple //; leading ./; /./; /../; */ normalize_path_copy(add_data.sm_path, add_data.sm_path); strip_dir_trailing_slashes(add_data.sm_path); die_on_index_match(add_data.sm_path, force); die_on_repo_without_commits(add_data.sm_path); if (!force) { int exit_code = -1; struct strbuf sb = STRBUF_INIT; struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; cp.no_stdout = 1; strvec_pushl(&cp.args, "add", "--dry-run", "--ignore-missing", "--no-warn-embedded-repo", add_data.sm_path, NULL); if ((exit_code = pipe_command(&cp, NULL, 0, NULL, 0, &sb, 0))) { strbuf_complete_line(&sb); fputs(sb.buf, stderr); free(add_data.sm_path); return exit_code; } strbuf_release(&sb); } if(!add_data.sm_name) add_data.sm_name = add_data.sm_path; if (check_submodule_name(add_data.sm_name)) die(_("'%s' is not a valid submodule name"), add_data.sm_name); add_data.prefix = prefix; add_data.force = !!force; add_data.quiet = !!quiet; add_data.progress = !!progress; add_data.dissociate = !!dissociate; if (add_submodule(&add_data)) { free(add_data.sm_path); return 1; } configure_added_submodule(&add_data); free(add_data.sm_path); free(to_free); return 0; } #define SUPPORT_SUPER_PREFIX (1<<0) struct cmd_struct { const char *cmd; int (*fn)(int, const char **, const char *); unsigned option; }; static struct cmd_struct commands[] = { {"list", module_list, 0}, {"name", module_name, 0}, {"clone", module_clone, 0}, {"add", module_add, SUPPORT_SUPER_PREFIX}, {"update-module-mode", module_update_module_mode, 0}, {"update-clone", update_clone, 0}, {"run-update-procedure", run_update_procedure, 0}, {"ensure-core-worktree", ensure_core_worktree, 0}, {"relative-path", resolve_relative_path, 0}, {"resolve-relative-url-test", resolve_relative_url_test, 0}, {"foreach", module_foreach, SUPPORT_SUPER_PREFIX}, {"init", module_init, SUPPORT_SUPER_PREFIX}, {"status", module_status, SUPPORT_SUPER_PREFIX}, {"print-default-remote", print_default_remote, 0}, {"sync", module_sync, SUPPORT_SUPER_PREFIX}, {"deinit", module_deinit, 0}, {"summary", module_summary, SUPPORT_SUPER_PREFIX}, {"remote-branch", resolve_remote_submodule_branch, 0}, {"push-check", push_check, 0}, {"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX}, {"is-active", is_active, 0}, {"check-name", check_name, 0}, {"config", module_config, 0}, {"set-url", module_set_url, 0}, {"set-branch", module_set_branch, 0}, {"create-branch", module_create_branch, 0}, }; int cmd_submodule__helper(int argc, const char **argv, const char *prefix) { int i; if (argc < 2 || !strcmp(argv[1], "-h")) usage("git submodule--helper "); for (i = 0; i < ARRAY_SIZE(commands); i++) { if (!strcmp(argv[1], commands[i].cmd)) { if (get_super_prefix() && !(commands[i].option & SUPPORT_SUPER_PREFIX)) die(_("%s doesn't support --super-prefix"), commands[i].cmd); return commands[i].fn(argc - 1, argv + 1, prefix); } } die(_("'%s' is not a valid submodule--helper " "subcommand"), argv[1]); }