+#include "abspath.h"

+#include "environment.h"

+#include "gettext.h"

+#include "hex.h"

+#include "path.h"

+#include "preload-index.h"

+#include "read-cache.h"

+#include "setup.h"

+#include "sparse-index.h"

+#include "object-file.h"

+#include "object-name.h"

+#include "object-store-ll.h"

+#include "branch.h"

+#include "list-objects-filter-options.h"

+static int repo_get_default_remote(struct repository *repo, char **default_remote)

+ char *dest = NULL;

+ struct ref_store *store = get_main_ref_store(repo);

+ const char *refname = refs_resolve_ref_unsafe(store, "HEAD", 0, NULL,

+ NULL);

+ return die_message(_("No such ref: %s"), "HEAD");

+ if (!strcmp(refname, "HEAD")) {

+ *default_remote = xstrdup("origin");

+ return 0;

+ }

+ return die_message(_("Expecting a full ref name, got %s"),

+ refname);

+ if (repo_config_get_string(repo, sb.buf, &dest))

+ *default_remote = xstrdup("origin");

+ *default_remote = dest;

+static int get_default_remote_submodule(const char *module_path, char **default_remote)

+ struct repository subrepo;

+ int ret;

+ if (repo_submodule_init(&subrepo, the_repository, module_path,

+ null_oid()) < 0)

+ return die_message(_("could not get a repository handle for submodule '%s'"),

+ module_path);

+ ret = repo_get_default_remote(&subrepo, default_remote);

+ repo_clear(&subrepo);

+ return ret;

+static char *get_default_remote(void)

+{

+ char *default_remote;

+ int code = repo_get_default_remote(the_repository, &default_remote);

+ if (code)

+ exit(code);

+ return default_remote;

+static char *resolve_relative_url(const char *rel_url, const char *up_path, int quiet)

+ char *remoteurl, *resolved_url;

+ 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);

+ }

+ resolved_url = relative_url(remoteurl, rel_url, up_path);

+ free(remote);

+ strbuf_release(&remotesb);

+ return resolved_url;

+static char *get_submodule_displaypath(const char *path, const char *prefix,

+ const char *super_prefix)

+ prepare_submodule_repo_env(&cp.env);

+#define MODULE_LIST_INIT { 0 }

+static void module_list_release(struct module_list *ml)

+{

+ free(ml->entries);

+}

+

+static int module_list_compute(const char **argv,

+

+ if (repo_read_index(the_repository) < 0)

+ for (i = 0; i < the_repository->index->cache_nr; i++) {

+ const struct cache_entry *ce = the_repository->index->cache[i];

+ if (!match_pathspec(the_repository->index, pathspec, ce->name, ce_namelen(ce),

+ while (i + 1 < the_repository->index->cache_nr &&

+ !strcmp(ce->name, the_repository->index->cache[i + 1]->name))

+ module_list_release(list);

+

+ const char *super_prefix;

+ if (validate_submodule_path(path) < 0)

+ exit(128);

+

+ displaypath = get_submodule_displaypath(path, info->prefix,

+ info->super_prefix);

+ sub = submodule_from_path(the_repository, null_oid(), path);

+ prepare_submodule_repo_env(&cp.env);

+ strvec_pushf(&cp.env, "name=%s", sub->name);

+ strvec_pushf(&cp.env, "sm_path=%s", path);

+ strvec_pushf(&cp.env, "displaypath=%s", displaypath);

+ strvec_pushf(&cp.env, "sha1=%s",

+ strvec_pushf(&cp.env, "toplevel=%s", toplevel);

+ * path via the args strvec and not via env.

+ prepare_submodule_repo_env(&cpr.env);

+ strvec_pushl(&cpr.args, "--super-prefix", NULL);

+ strvec_pushf(&cpr.args, "%s/", displaypath);

+ struct pathspec pathspec = { 0 };

+ OPT__SUPER_PREFIX(&info.super_prefix),

+ N_("git submodule foreach [--quiet] [--recursive] [--] <command>"),

+ int ret = 1;

+ if (module_list_compute(NULL, prefix, &pathspec, &list) < 0)

+ goto cleanup;

+ ret = 0;

+cleanup:

+ module_list_release(&list);

+ clear_pathspec(&pathspec);

+ return ret;

+static int starts_with_dot_slash(const char *const path)

+ return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_SLASH |

+ PATH_MATCH_XPLATFORM);

+}

+static int starts_with_dot_dot_slash(const char *const path)

+{

+ return path_match_flags(path, PATH_MATCH_STARTS_WITH_DOT_DOT_SLASH |

+ PATH_MATCH_XPLATFORM);

+ const char *super_prefix;

+#define INIT_CB_INIT { 0 }

+ const char *super_prefix,

+ const char *upd;

+ char *url = NULL, *displaypath;

+ displaypath = get_submodule_displaypath(path, prefix, super_prefix);

+ sub = submodule_from_path(the_repository, null_oid(), path);

+

+ url = resolve_relative_url(oldurl, NULL, 0);

+ if (git_config_get_string_tmp(sb.buf, &upd) &&

+ upd = "none";

+ } else {

+ upd = submodule_update_type_to_string(sub->update_strategy.type);

+ }

+

+ init_submodule(list_item->name, info->prefix, info->super_prefix,

+ info->flags);

+ struct pathspec pathspec = { 0 };

+ N_("git submodule init [<options>] [<path>]"),

+ int ret = 1;

+ if (module_list_compute(argv, prefix, &pathspec, &list) < 0)

+ goto cleanup;

+ if (!argc && !git_config_get("submodule.active"))

+ ret = 0;

+cleanup:

+ module_list_release(&list);

+ clear_pathspec(&pathspec);

+ return ret;

+ const char *super_prefix;

+#define STATUS_CB_INIT { 0 }

+ char *name = compute_rev_name(path, oid_to_hex(oid));

+ free(name);

+static int handle_submodule_head_ref(const char *refname UNUSED,

+ const struct object_id *oid,

+ int flags UNUSED,

+

+ const char *super_prefix, unsigned int flags)

+ struct rev_info rev = REV_INFO_INIT;

+ struct setup_revision_opt opt = {

+ .free_removed_argv_elements = 1,

+ };

+ if (validate_submodule_path(path) < 0)

+ exit(128);

+

+ if (!submodule_from_path(the_repository, null_oid(), path))

+ displaypath = get_submodule_displaypath(path, prefix, super_prefix);

+ print_status(flags, 'U', path, null_oid(), displaypath);

+ setup_revisions(diff_files_args.nr, diff_files_args.v, &rev, &opt);

+ run_diff_files(&rev, 0);

+ if (!diff_result_code(&rev.diffopt)) {

+ prepare_submodule_repo_env(&cpr.env);

+ strvec_push(&cpr.args, "--super-prefix");

+ strvec_pushf(&cpr.args, "%s/", displaypath);

+ release_revisions(&rev);

+

+ info->prefix, info->super_prefix, info->flags);

+ struct pathspec pathspec = { 0 };

+ OPT__SUPER_PREFIX(&info.super_prefix),

+ int ret = 1;

+ if (module_list_compute(argv, prefix, &pathspec, &list) < 0)

+ goto cleanup;

+ ret = 0;

+cleanup:

+ module_list_release(&list);

+ clear_pathspec(&pathspec);

+ return ret;

+ char *sm_path;

+#define MODULE_CB_INIT { 0 }

+

+static void module_cb_release(struct module_cb *mcb)

+{

+ free(mcb->sm_path);

+}

+#define MODULE_CB_LIST_INIT { 0 }

+

+static void module_cb_list_release(struct module_cb_list *mcbl)

+{

+ int i;

+

+ for (i = 0; i < mcbl->nr; i++) {

+ struct module_cb *mcb = mcbl->entries[i];

+

+ module_cb_release(mcb);

+ free(mcb);

+ }

+ free(mcbl->entries);

+}

+ const char *super_prefix;

+#define SUMMARY_CB_INIT { 0 }

+ prepare_submodule_repo_env(&cp_rev_parse.env);

+static void print_submodule_summary(struct summary_cb *info, const char *errmsg,

+ prepare_submodule_repo_env(&cp_log.env);

+ struct strbuf errmsg = STRBUF_INIT;

+ if (!info->cached && oideq(&p->oid_dst, null_oid())) {

+

+ index_fd(the_repository->index, &p->oid_dst, fd, &st, OBJ_BLOB,

+ displaypath = get_submodule_displaypath(p->sm_path, info->prefix,

+ info->super_prefix);

+ prepare_submodule_repo_env(&cp_rev_list.env);

+ strbuf_addf(&errmsg, " Warn: %s doesn't contain commits %s and %s\n",

+ strbuf_addf(&errmsg, " Warn: %s doesn't contain commit %s\n",

+ print_submodule_summary(info, errmsg.len ? errmsg.buf : NULL,

+ total_commits, displaypath, src_abbrev,

+ strbuf_release(&errmsg);

+ null_oid(), p->sm_path))) {

+ struct diff_options *options UNUSED,

+ struct setup_revision_opt opt = {

+ .free_removed_argv_elements = 1,

+ };

+ int ret = 0;

+ repo_init_revisions(the_repository, &rev, info->prefix);

+ precompose_argv_prefix(diff_args.nr, diff_args.v, NULL);

+ setup_revisions(diff_args.nr, diff_args.v, &rev, &opt);

+ if (repo_read_index_preload(the_repository, &rev.diffopt.pathspec, 0) < 0) {

+ perror("repo_read_index_preload");

+ ret = -1;

+ goto cleanup;

+ } else if (repo_read_index(the_repository) < 0) {

+ perror("repo_read_cache");

+ ret = -1;

+ goto cleanup;

+ run_diff_index(&rev, info->cached ? DIFF_INDEX_CACHED : 0);

+cleanup:

+ release_revisions(&rev);

+ module_cb_list_release(&list);

+ return ret;

+ N_("compare the commit in the index with that in the submodule HEAD")),

+ N_("git submodule summary [<options>] [<commit>] [--] [<path>]"),

+ if (!repo_get_oid(the_repository, argc ? argv[0] : "HEAD", &head_oid)) {

+ if (repo_get_oid(the_repository, "HEAD", &head_oid))

+ die(_("options '%s' and '%s' cannot be used together"), "--cached", "--files");

+ const char *super_prefix;

+#define SYNC_CB_INIT { 0 }

+ const char *super_prefix, unsigned int flags)

+ char *sub_origin_url, *super_config_url, *displaypath, *default_remote;

+ int code;

+ if (validate_submodule_path(path) < 0)

+ exit(128);

+

+ sub = submodule_from_path(the_repository, null_oid(), path);

+ 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);

+ displaypath = get_submodule_displaypath(path, prefix, super_prefix);

+ code = get_default_remote_submodule(path, &default_remote);

+ if (code)

+ exit(code);

+ remote_key = xstrfmt("remote.%s.url", default_remote);

+ free(default_remote);

+ if (git_config_set_in_file_gently(sb.buf, remote_key, NULL, sub_origin_url))

+ prepare_submodule_repo_env(&cpr.env);

+ strvec_push(&cpr.args, "--super-prefix");

+ strvec_pushf(&cpr.args, "%s/", displaypath);

+

+

+ sync_submodule(list_item->name, info->prefix, info->super_prefix,

+ info->flags);

+ struct pathspec pathspec = { 0 };

+ OPT__SUPER_PREFIX(&info.super_prefix),

+ N_("git submodule sync [--quiet] [--recursive] [<path>]"),

+ int ret = 1;

+ if (module_list_compute(argv, prefix, &pathspec, &list) < 0)

+ goto cleanup;

+ ret = 0;

+cleanup:

+ module_list_release(&list);

+ clear_pathspec(&pathspec);

+ return ret;

+#define DEINIT_CB_INIT { 0 }

+ if (validate_submodule_path(path) < 0)

+ exit(128);

+

+ sub = submodule_from_path(the_repository, null_oid(), path);

+ displaypath = get_submodule_displaypath(path, prefix, NULL);

+ 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, NULL);

+

+ }

+

+

+ struct pathspec pathspec = { 0 };

+ int ret = 1;

+ if (module_list_compute(argv, prefix, &pathspec, &list) < 0)

+ goto cleanup;

+ ret = 0;

+cleanup:

+ module_list_release(&list);

+ clear_pathspec(&pathspec);

+ return ret;

+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;

+ 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 { \

+ .single_branch = -1, \

+#define SUBMODULE_ALTERNATE_SETUP_INIT { \

+ .error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE, \

+}

+ struct repository alternate;

+ if (repo_init(&alternate, sb.buf, NULL) < 0)

+ die(_("could not get a repository handle for gitdir '%s'"),

+ sb.buf);

+

+ strbuf_reset(&sb);

+ submodule_name_to_gitdir(&sb, &alternate, sas->submodule_name);

+ strbuf_addch(&sb, '/');

+ repo_clear(&alternate);

+ char *p = strbuf_detach(&sb, NULL);

+

+ string_list_append(sas->reference, p)->util = p;

+ if (advice_enabled(ADVICE_SUBMODULE_ALTERNATE_ERROR_STRATEGY_DIE))

+static char *clone_submodule_sm_gitdir(const char *name)

+ char *sm_gitdir;

+

+ submodule_name_to_gitdir(&sb, the_repository, name);

+ sm_gitdir = absolute_pathdup(sb.buf);

+ strbuf_release(&sb);

+

+ return sm_gitdir;

+}

+

+static int dir_contains_only_dotgit(const char *path)

+{

+ DIR *dir = opendir(path);

+ struct dirent *e;

+ int ret = 1;

+

+ if (!dir)

+ return 0;

+

+ e = readdir_skip_dot_and_dotdot(dir);

+ if (!e)

+ ret = 0;

+ else if (strcmp(DEFAULT_GIT_DIR_ENVIRONMENT, e->d_name) ||

+ (e = readdir_skip_dot_and_dotdot(dir))) {

+ error("unexpected item '%s' in '%s'", e->d_name, path);

+ ret = 0;

+ }

+

+ closedir(dir);

+ return ret;

+}

+

+static int clone_submodule(const struct module_clone_data *clone_data,

+ struct string_list *reference)

+{

+ char *p;

+ char *sm_gitdir = clone_submodule_sm_gitdir(clone_data->name);

+ struct stat st;

+ struct child_process cp = CHILD_PROCESS_INIT;

+ const char *clone_data_path = clone_data->path;

+ char *to_free = NULL;

+

+ if (validate_submodule_path(clone_data_path) < 0)

+ exit(128);

+

+ if (!is_absolute_path(clone_data->path))

+ clone_data_path = to_free = xstrfmt("%s/%s", get_git_work_tree(),

+ 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 (clone_data->require_init && !stat(clone_data_path, &st) &&

+ !is_empty_dir(clone_data_path))

+ die(_("directory not empty: '%s'"), clone_data_path);

+

+ if (safe_create_leading_directories_const(sm_gitdir) < 0)

+ die(_("could not create directory '%s'"), sm_gitdir);

+

+ prepare_possible_alternates(clone_data->name, 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 (reference->nr) {

+ struct string_list_item *item;

+

+ for_each_string_list_item(item, 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);

+ cp.no_stdin = 1;

+

+ if(run_command(&cp))

+ die(_("clone of '%s' into submodule path '%s' failed"),

+ clone_data->url, clone_data_path);

+

+ if (clone_data->require_init && !stat(clone_data_path, &st) &&

+ !dir_contains_only_dotgit(clone_data_path)) {

+ char *dot_git = xstrfmt("%s/.git", clone_data_path);

+ unlink(dot_git);

+ free(dot_git);

+ die(_("directory not empty: '%s'"), clone_data_path);

+ }

+ } else {

+ char *path;

+

+ if (clone_data->require_init && !stat(clone_data_path, &st) &&

+ !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);

+ path = xstrfmt("%s/index", sm_gitdir);

+ unlink_or_warn(path);

+ free(path);

+ }

+

+ /*

+ * We already performed this check at the beginning of this function,

+ * before cloning the objects. This tries to detect racy behavior e.g.

+ * in parallel clones, where another process could easily have made the

+ * gitdir nested _after_ it was created.

+ *

+ * To prevent further harm coming from this unintentionally-nested

+ * gitdir, let's disable it by deleting the `HEAD` file.

+ */

+ if (validate_submodule_git_dir(sm_gitdir, clone_data->name) < 0) {

+ char *head = xstrfmt("%s/HEAD", sm_gitdir);

+ unlink(head);

+ free(head);

+ die(_("refusing to create/use '%s' in another submodule's "

+ "git dir"), sm_gitdir);

+ }

+

+ 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);

+

+ free(sm_gitdir);

+ free(p);

+ free(to_free);

+ 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 string_list reference = STRING_LIST_INIT_NODUP;

+ struct list_objects_filter_options filter_options =

+ LIST_OBJECTS_FILTER_INIT;

+ OPT_STRING(0, "prefix", &clone_data.prefix,

+ OPT_STRING(0, "path", &clone_data.path,

+ OPT_STRING(0, "name", &clone_data.name,

+ OPT_STRING(0, "url", &clone_data.url,

+ OPT_STRING(0, "depth", &clone_data.depth,

+ OPT__QUIET(&quiet, "suppress output for cloning a submodule"),

+ OPT_BOOL(0, "single-branch", &clone_data.single_branch,

+ OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),

+ "[--single-branch] [--filter <filter-spec>] "

+ 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))

+ clone_submodule(&clone_data, &reference);

+ list_objects_filter_release(&filter_options);

+ string_list_clear(&reference, 1);

+static int determine_submodule_update_strategy(struct repository *r,

+ int just_cloned,

+ const char *path,

+ enum submodule_update_type update,

+ struct submodule_update_strategy *out)

+ const struct submodule *sub = submodule_from_path(r, null_oid(), path);

+ int ret;

+ out->type = update;

+ if (parse_submodule_update_strategy(val, out) < 0) {

+ ret = die_message(_("Invalid update mode '%s' configured for submodule path '%s'"),

+ val, path);

+ goto cleanup;

+ }

+ ret = 0;

+cleanup:

+ return ret;

+ /* index into 'update_data.list', the list of submodules to look into for cloning */

+ const struct update_data *update_data;

+ /* to be consumed by update_submodule() */

+};

+#define SUBMODULE_UPDATE_CLONE_INIT { 0 }

+

+static void submodule_update_clone_release(struct submodule_update_clone *suc)

+{

+ free(suc->update_clone);

+ free(suc->failed_clones);

+}

+struct update_data {

+ const char *prefix;

+ const char *super_prefix;

+ char *displaypath;

+ enum submodule_update_type update_default;

+ struct object_id suboid;

+ struct string_list references;

+ struct submodule_update_strategy update_strategy;

+ struct list_objects_filter_options *filter_options;

+ struct module_list list;

+ int depth;

+ int single_branch;

+ int recommend_shallow;

+ unsigned int require_init;

+ unsigned int force;

+ unsigned int quiet;

+ unsigned int nofetch;

+ unsigned int remote;

+ unsigned int progress;

+ unsigned int dissociate;

+ unsigned int init;

+ unsigned int warn_if_uninitialized;

+ unsigned int recursive;

+

+ /* copied over from update_clone_data */

+ struct object_id oid;

+ unsigned int just_cloned;

+ const char *sm_path;

+#define UPDATE_DATA_INIT { \

+ .update_strategy = SUBMODULE_UPDATE_STRATEGY_INIT, \

+static void update_data_release(struct update_data *ud)

+{

+ free(ud->displaypath);

+ module_list_release(&ud->list);

+}

+ if (suc->update_data->warn_if_uninitialized) {

+ const struct update_data *ud = suc->update_data;

+ char *displaypath = get_submodule_displaypath(ce->name, ud->prefix,

+ ud->super_prefix);

+ strbuf_addf(out, _("Skipping unmerged submodule %s"), displaypath);

+ sub = submodule_from_path(the_repository, null_oid(), ce->name);

+ if (suc->update_data->update_strategy.type == SM_UPDATE_NONE

+ || (suc->update_data->update_strategy.type == SM_UPDATE_UNSPECIFIED

+ if (sub->url && (starts_with_dot_slash(sub->url) ||

+ starts_with_dot_dot_slash(sub->url))) {

+ url = resolve_relative_url(sub->url, NULL, 0);

+ if (!url)

+ die(_("cannot clone submodule '%s' without a URL"), sub->name);

+

+ if (suc->update_data->progress)

+ if (suc->update_data->quiet)

+ if (suc->update_data->prefix)

+ strvec_pushl(&child->args, "--prefix", suc->update_data->prefix, NULL);

+ if (suc->update_data->recommend_shallow && sub->recommend_shallow == 1)

+ else if (suc->update_data->depth)

+ strvec_pushf(&child->args, "--depth=%d", suc->update_data->depth);

+ if (suc->update_data->filter_options && suc->update_data->filter_options->choice)

+ strvec_pushf(&child->args, "--filter=%s",

+ expand_list_objects_filter_spec(suc->update_data->filter_options));

+ if (suc->update_data->require_init)

+ if (suc->update_data->references.nr) {

+

+ for_each_string_list_item(item, &suc->update_data->references)

+ if (suc->update_data->dissociate)

+ if (suc->update_data->single_branch >= 0)

+ strvec_push(&child->args, suc->update_data->single_branch ?

+ free(displaypath);

+ for (; suc->current < suc->update_data->list.nr; suc->current++) {

+ ce = suc->update_data->list.entries[suc->current];

+

+ index = suc->current - suc->update_data->list.nr;

+

+static int update_clone_start_failure(struct strbuf *err UNUSED,

+ void *idx_task_cb UNUSED)

+

+

+ if (idx < suc->update_data->list.nr) {

+ ce = suc->update_data->list.entries[idx];

+ idx -= suc->update_data->list.nr;

+ const struct config_context *ctx,

+

+ *max_jobs = parse_submodule_fetchjobs(var, value, ctx->kvi);

+static int is_tip_reachable(const char *path, const 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 = path;

+ cp.no_stderr = 1;

+ strvec_pushl(&cp.args, "rev-list", "-n", "1", hex, "--not", "--all", NULL);

+

+ prepare_submodule_repo_env(&cp.env);

+

+ 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,

+ const struct object_id *oid)

+ struct child_process cp = CHILD_PROCESS_INIT;

+

+ prepare_submodule_repo_env(&cp.env);

+ cp.git_cmd = 1;

+ cp.dir = 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);

+ free(remote);

+ }

+

+ return run_command(&cp);

+}

+

+static int run_update_command(const struct update_data *ud, int subforce)

+{

+ struct child_process cp = CHILD_PROCESS_INIT;

+ char *oid = oid_to_hex(&ud->oid);

+ int ret;

+

+ switch (ud->update_strategy.type) {

+ case SM_UPDATE_CHECKOUT:

+ cp.git_cmd = 1;

+ strvec_pushl(&cp.args, "checkout", "-q", NULL);

+ if (subforce)

+ strvec_push(&cp.args, "-f");

+ break;

+ case SM_UPDATE_REBASE:

+ cp.git_cmd = 1;

+ strvec_push(&cp.args, "rebase");

+ if (ud->quiet)

+ strvec_push(&cp.args, "--quiet");

+ break;

+ case SM_UPDATE_MERGE:

+ cp.git_cmd = 1;

+ strvec_push(&cp.args, "merge");

+ if (ud->quiet)

+ strvec_push(&cp.args, "--quiet");

+ break;

+ case SM_UPDATE_COMMAND:

+ cp.use_shell = 1;

+ strvec_push(&cp.args, ud->update_strategy.command);

+ break;

+ default:

+ BUG("unexpected update strategy type: %d",

+ ud->update_strategy.type);

+ }

+ strvec_push(&cp.args, oid);

+

+ cp.dir = ud->sm_path;

+ prepare_submodule_repo_env(&cp.env);

+ if ((ret = run_command(&cp))) {

+ switch (ud->update_strategy.type) {

+ case SM_UPDATE_CHECKOUT:

+ die_message(_("Unable to checkout '%s' in submodule path '%s'"),

+ oid, ud->displaypath);

+ /* No "ret" assignment, use "git checkout"'s */

+ break;

+ case SM_UPDATE_REBASE:

+ ret = die_message(_("Unable to rebase '%s' in submodule path '%s'"),

+ oid, ud->displaypath);

+ break;

+ case SM_UPDATE_MERGE:

+ ret = die_message(_("Unable to merge '%s' in submodule path '%s'"),

+ oid, ud->displaypath);

+ break;

+ case SM_UPDATE_COMMAND:

+ ret = die_message(_("Execution of '%s %s' failed in submodule path '%s'"),

+ ud->update_strategy.command, oid, ud->displaypath);

+ break;

+ default:

+ BUG("unexpected update strategy type: %d",

+ ud->update_strategy.type);

+ }

+

+ return ret;

+ }

+

+ if (ud->quiet)

+ return 0;

+

+ 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: %d",

+ ud->update_strategy.type);

+ }

+

+ return 0;

+}

+

+static int run_update_procedure(const 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))

+ return die_message(_("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 int remote_submodule_branch(const char *path, const char **branch)

+{

+ const struct submodule *sub;

+ char *key;

+ *branch = NULL;

+

+ sub = submodule_from_path(the_repository, null_oid(), path);

+ if (!sub)

+ return die_message(_("could not initialize submodule at path '%s'"),

+ path);

+

+ key = xstrfmt("submodule.%s.branch", sub->name);

+ if (repo_config_get_string_tmp(the_repository, key, branch))

+ *branch = sub->branch;

+ free(key);

+

+ if (!*branch) {

+ *branch = "HEAD";

+ return 0;

+ }

+

+ if (!strcmp(*branch, ".")) {

+ const char *refname = refs_resolve_ref_unsafe(get_main_ref_store(the_repository),

+ "HEAD", 0, NULL,

+ NULL);

+

+ if (!refname)

+ return die_message(_("No such ref: %s"), "HEAD");

+

+ /* detached HEAD */

+ if (!strcmp(refname, "HEAD"))

+ return die_message(_("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))

+ return die_message(_("Expecting a full ref name, got %s"),

+ refname);

+

+ *branch = refname;

+ return 0;

+ }

+

+ /* Our "branch" is coming from repo_config_get_string_tmp() */

+ return 0;

+}

+

+static int ensure_core_worktree(const char *path)

+{

+ const char *cw;

+ struct repository subrepo;

+

+ if (repo_submodule_init(&subrepo, the_repository, path, null_oid()))

+ return die_message(_("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);

+ }

+

+ repo_clear(&subrepo);

+ return 0;

+}

+

+static const char *submodule_update_type_to_label(enum submodule_update_type type)

+{

+ switch (type) {

+ case SM_UPDATE_CHECKOUT:

+ return "checkout";

+ case SM_UPDATE_MERGE:

+ return "merge";

+ case SM_UPDATE_REBASE:

+ return "rebase";

+ case SM_UPDATE_UNSPECIFIED:

+ case SM_UPDATE_NONE:

+ case SM_UPDATE_COMMAND:

+ break;

+ }

+ BUG("unreachable with type %d", type);

+}

+

+static void update_data_to_args(const struct update_data *update_data,

+ struct strvec *args)

+{

+ enum submodule_update_type update_type = update_data->update_default;

+

+ strvec_pushl(args, "submodule--helper", "update", "--recursive", NULL);

+ if (update_data->displaypath) {

+ strvec_push(args, "--super-prefix");

+ strvec_pushf(args, "%s/", update_data->displaypath);

+ }

+ strvec_pushf(args, "--jobs=%d", update_data->max_jobs);

+ if (update_data->quiet)

+ strvec_push(args, "--quiet");

+ if (update_data->force)

+ strvec_push(args, "--force");

+ if (update_data->init)

+ strvec_push(args, "--init");

+ if (update_data->remote)

+ strvec_push(args, "--remote");

+ if (update_data->nofetch)

+ strvec_push(args, "--no-fetch");

+ if (update_data->dissociate)

+ strvec_push(args, "--dissociate");

+ if (update_data->progress)

+ strvec_push(args, "--progress");

+ if (update_data->require_init)

+ strvec_push(args, "--require-init");

+ if (update_data->depth)

+ strvec_pushf(args, "--depth=%d", update_data->depth);

+ if (update_type != SM_UPDATE_UNSPECIFIED)

+ strvec_pushf(args, "--%s",

+ submodule_update_type_to_label(update_type));

+

+ if (update_data->references.nr) {

+ struct string_list_item *item;

+

+ for_each_string_list_item(item, &update_data->references)

+ strvec_pushl(args, "--reference", item->string, NULL);

+ }

+ if (update_data->filter_options && update_data->filter_options->choice)

+ strvec_pushf(args, "--filter=%s",

+ expand_list_objects_filter_spec(

+ update_data->filter_options));

+ if (update_data->recommend_shallow == 0)

+ strvec_push(args, "--no-recommend-shallow");

+ else if (update_data->recommend_shallow == 1)

+ strvec_push(args, "--recommend-shallow");

+ if (update_data->single_branch >= 0)

+ strvec_push(args, update_data->single_branch ?

+ "--single-branch" :

+ "--no-single-branch");

+}

+

+static int update_submodule(struct update_data *update_data)

+{

+ int ret;

+

+ if (validate_submodule_path(update_data->sm_path) < 0)

+ return -1;

+

+ ret = determine_submodule_update_strategy(the_repository,

+ update_data->just_cloned,

+ update_data->sm_path,

+ update_data->update_default,

+ &update_data->update_strategy);

+ if (ret)

+ return ret;

+

+ if (update_data->just_cloned)

+ oidcpy(&update_data->suboid, null_oid());

+ else if (resolve_gitlink_ref(update_data->sm_path, "HEAD", &update_data->suboid))

+ return die_message(_("Unable to find current revision in submodule path '%s'"),

+ update_data->displaypath);

+

+ if (update_data->remote) {

+ char *remote_name;

+ const char *branch;

+ char *remote_ref;

+ int code;

+

+ code = get_default_remote_submodule(update_data->sm_path, &remote_name);

+ if (code)

+ return code;

+ code = remote_submodule_branch(update_data->sm_path, &branch);

+ if (code)

+ return code;

+ remote_ref = xstrfmt("refs/remotes/%s/%s", remote_name, branch);

+

+ free(remote_name);

+

+ if (!update_data->nofetch) {

+ if (fetch_in_submodule(update_data->sm_path, update_data->depth,

+ 0, NULL))

+ return die_message(_("Unable to fetch in submodule path '%s'"),

+ update_data->sm_path);

+ }

+

+ if (resolve_gitlink_ref(update_data->sm_path, remote_ref, &update_data->oid))

+ return die_message(_("Unable to find %s revision in submodule path '%s'"),

+ remote_ref, update_data->sm_path);

+

+ free(remote_ref);

+ }

+

+ if (!oideq(&update_data->oid, &update_data->suboid) || update_data->force) {

+ ret = run_update_procedure(update_data);

+ if (ret)

+ return ret;

+ }

+

+ if (update_data->recursive) {

+ struct child_process cp = CHILD_PROCESS_INIT;

+ struct update_data next = *update_data;

+

+ next.prefix = NULL;

+ oidcpy(&next.oid, null_oid());

+ oidcpy(&next.suboid, null_oid());

+

+ cp.dir = update_data->sm_path;

+ cp.git_cmd = 1;

+ prepare_submodule_repo_env(&cp.env);

+ update_data_to_args(&next, &cp.args);

+

+ ret = run_command(&cp);

+ if (ret)

+ die_message(_("Failed to recurse into submodule path '%s'"),

+ update_data->displaypath);

+ return ret;

+ }

+

+ return 0;

+}

+

+static int update_submodules(struct update_data *update_data)

+{

+ int i, ret = 0;

+ struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;

+ const struct run_process_parallel_opts opts = {

+ .tr2_category = "submodule",

+ .tr2_label = "parallel/update",

+

+ .processes = update_data->max_jobs,

+ .get_next_task = update_clone_get_next_task,

+ .start_failure = update_clone_start_failure,

+ .task_finished = update_clone_task_finished,

+ .data = &suc,

+ };

+

+ suc.update_data = update_data;

+ run_processes_parallel(&opts);

+ if (suc.quickstop) {

+ ret = 1;

+ goto cleanup;

+ }

+ for (i = 0; i < suc.update_clone_nr; i++) {

+ struct update_clone_data ucd = suc.update_clone[i];

+ int code = 128;

+ oidcpy(&update_data->oid, &ucd.oid);

+ update_data->just_cloned = ucd.just_cloned;

+ update_data->sm_path = ucd.sub->path;

+

+ /*

+ * Verify that the submodule path does not contain any

+ * symlinks; if it does, it might have been tampered with.

+ * TODO: allow exempting it via

+ * `safe.submodule.path` or something

+ */

+ if (validate_submodule_path(update_data->sm_path) < 0)

+ goto fail;

+

+ code = ensure_core_worktree(update_data->sm_path);

+ if (code)

+ goto fail;

+

+ update_data->displaypath = get_submodule_displaypath(

+ update_data->sm_path, update_data->prefix,

+ update_data->super_prefix);

+ code = update_submodule(update_data);

+ FREE_AND_NULL(update_data->displaypath);

+fail:

+ if (!code)

+ continue;

+ ret = code;

+ if (ret == 128)

+ goto cleanup;

+ }

+

+cleanup:

+ submodule_update_clone_release(&suc);

+ string_list_clear(&update_data->references, 0);

+ return ret;

+static int module_update(int argc, const char **argv, const char *prefix)

+ struct pathspec pathspec = { 0 };

+ struct pathspec pathspec2 = { 0 };

+ struct update_data opt = UPDATE_DATA_INIT;

+ struct list_objects_filter_options filter_options =

+ LIST_OBJECTS_FILTER_INIT;

+ int ret;

+ struct option module_update_options[] = {

+ OPT__SUPER_PREFIX(&opt.super_prefix),

+ OPT__FORCE(&opt.force, N_("force checkout updates"), 0),

+ OPT_BOOL(0, "init", &opt.init,

+ N_("initialize uninitialized submodules before update")),

+ OPT_BOOL(0, "remote", &opt.remote,

+ N_("use SHA-1 of submodule's remote tracking branch")),

+ OPT_BOOL(0, "recursive", &opt.recursive,

+ N_("traverse submodules recursively")),

+ OPT_BOOL('N', "no-fetch", &opt.nofetch,

+ N_("don't fetch new objects from the remote site")),

+ OPT_SET_INT(0, "checkout", &opt.update_default,

+ N_("use the 'checkout' update strategy (default)"),

+ SM_UPDATE_CHECKOUT),

+ OPT_SET_INT('m', "merge", &opt.update_default,

+ N_("use the 'merge' update strategy"),

+ SM_UPDATE_MERGE),

+ OPT_SET_INT('r', "rebase", &opt.update_default,

+ N_("use the 'rebase' update strategy"),

+ SM_UPDATE_REBASE),

+ OPT_STRING_LIST(0, "reference", &opt.references, N_("repo"),

+ OPT_BOOL(0, "dissociate", &opt.dissociate,

+ OPT_INTEGER(0, "depth", &opt.depth,

+ OPT_INTEGER('j', "jobs", &opt.max_jobs,

+ OPT_BOOL(0, "recommend-shallow", &opt.recommend_shallow,

+ OPT__QUIET(&opt.quiet, N_("don't print cloning progress")),

+ OPT_BOOL(0, "progress", &opt.progress,

+ OPT_BOOL(0, "require-init", &opt.require_init,

+ N_("disallow cloning into non-empty directory, implies --init")),

+ OPT_BOOL(0, "single-branch", &opt.single_branch,

+ OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),

+ N_("git submodule [--quiet] update"

+ " [--init [--filter=<filter-spec>]] [--remote]"

+ " [-N|--no-fetch] [-f|--force]"

+ " [--checkout|--merge|--rebase]"

+ " [--[no-]recommend-shallow] [--reference <repository>]"

+ " [--recursive] [--[no-]single-branch] [--] [<path>...]"),

+ update_clone_config_from_gitmodules(&opt.max_jobs);

+ git_config(git_update_clone_config, &opt.max_jobs);

+ argc = parse_options(argc, argv, prefix, module_update_options,

+ if (opt.require_init)

+ opt.init = 1;

+ if (filter_options.choice && !opt.init) {

+ usage_with_options(git_submodule_helper_usage,

+ module_update_options);

+ }

+ opt.filter_options = &filter_options;

+ opt.prefix = prefix;

+ if (opt.update_default)

+ opt.update_strategy.type = opt.update_default;

+ if (module_list_compute(argv, prefix, &pathspec, &opt.list) < 0) {

+ ret = 1;

+ goto cleanup;

+ }

+ if (pathspec.nr)

+ opt.warn_if_uninitialized = 1;

+ if (opt.init) {

+ struct module_list list = MODULE_LIST_INIT;

+ struct init_cb info = INIT_CB_INIT;

+ if (module_list_compute(argv, opt.prefix,

+ &pathspec2, &list) < 0) {

+ module_list_release(&list);

+ ret = 1;

+ goto cleanup;

+ }

+ /*

+ * If there are no path args and submodule.active is set then,

+ * by default, only initialize 'active' modules.

+ */

+ if (!argc && !git_config_get("submodule.active"))

+ module_list_active(&list);

+ info.prefix = opt.prefix;

+ info.super_prefix = opt.super_prefix;

+ if (opt.quiet)

+ info.flags |= OPT_QUIET;

+ for_each_listed_submodule(&list, init_submodule_cb, &info);

+ module_list_release(&list);

+ ret = update_submodules(&opt);

+cleanup:

+ update_data_release(&opt);

+ list_objects_filter_release(&filter_options);

+ clear_pathspec(&pathspec);

+ clear_pathspec(&pathspec2);

+ return ret;

+static int push_check(int argc, const char **argv, const char *prefix UNUSED)

+ head = refs_resolve_refdup(get_main_ref_store(the_repository), "HEAD",

+ 0, &head_oid, NULL);

+ struct pathspec pathspec = { 0 };

+ const char *super_prefix = NULL;

+ OPT__SUPER_PREFIX(&super_prefix),

+ N_("git submodule absorbgitdirs [<options>] [<path>...]"),

+ int ret = 1;

+ if (module_list_compute(argv, prefix, &pathspec, &list) < 0)

+ goto cleanup;

+ absorb_git_dir_into_superproject(list.entries[i]->name,

+ super_prefix);

+ ret = 0;

+cleanup:

+ clear_pathspec(&pathspec);

+ module_list_release(&list);

+ return ret;

+ int quiet = 0, ret;

+ N_("git submodule set-url [--quiet] <path> <newurl>"),

+ const struct submodule *sub;

+ sub = submodule_from_path(the_repository, null_oid(), path);

+ if (!sub)

+ die(_("no submodule mapping found in .gitmodules for path '%s'"),

+ path);

+ config_name = xstrfmt("submodule.%s.url", sub->name);

+ ret = config_set_in_gitmodules_file_gently(config_name, newurl);

+ if (!ret) {

+ repo_read_gitmodules(the_repository, 0);

+ sync_submodule(sub->path, prefix, NULL, quiet ? OPT_QUIET : 0);

+ }

+

+ free(config_name);

+ return !!ret;

+ /*

+ * We accept the `quiet` option for uniformity across subcommands,

+ * though there is nothing to make less verbose in this subcommand.

+ */

+

+ N_("git submodule set-branch [-q|--quiet] (-d|--default) <path>"),

+ N_("git submodule set-branch [-q|--quiet] (-b|--branch) <branch> <path>"),

+ const struct submodule *sub;

+ die(_("options '%s' and '%s' cannot be used together"), "--branch", "--default");

+ sub = submodule_from_path(the_repository, null_oid(), path);

+

+ if (!sub)

+ die(_("no submodule mapping found in .gitmodules for path '%s'"),

+ path);

+

+ config_name = xstrfmt("submodule.%s.branch", sub->name);

+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_CALLBACK_F('t', "track", &track, "(direct|inherit)",

+ N_("set branch tracking configuration"),

+ PARSE_OPT_OPTARG,

+ parse_opt_tracking_mode),

+ 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] <name> <start-oid> <start-name>"),

+ 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,

+ "GIT_DIR=%s", git_dir_path);

+ strvec_push(&cp_remote.env, "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;

+ struct string_list reference = STRING_LIST_INIT_NODUP;

+ int ret = -1;

+

+ /* 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) {

+ char *p = xstrdup(add_data->reference_path);

+

+ string_list_append(&reference, p)->util = p;

+ clone_data.dissociate = add_data->dissociate;

+ if (add_data->depth >= 0)

+ clone_data.depth = xstrfmt("%d", add_data->depth);

+

+ if (clone_submodule(&clone_data, &reference))

+ goto cleanup;

+

+ prepare_submodule_repo_env(&cp.env);

+ 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);

+ ret = 0;

+cleanup:

+ string_list_clear(&reference, 1);

+ return ret;

+}

+

+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;

+ 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("submodule.active")) {

+ /*

+ * 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 (repo_read_index_preload(the_repository, NULL, 0) < 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_repository->index);

+

+ /*

+ * Since there is only one pathspec, we just need to

+ * check ps_matched[0] to know if a cache entry matched.

+ */

+ for (i = 0; i < the_repository->index->cache_nr; i++) {

+ ce_path_match(the_repository->index, the_repository->index->cache[i], &ps,

+ ps_matched);

+

+ if (ps_matched[0]) {

+ if (!force)

+ die(_("'%s' already exists in the index"),

+ path);

+ if (!S_ISGITLINK(the_repository->index->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 add [<options>] [--] <repository> [<path>]"),

+ NULL

+ };

+ struct strbuf sb = STRBUF_INIT;

+ int ret = 1;

+

+ 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)) {

+ char *sm_path = add_data.sm_path;

+

+ add_data.sm_path = xstrfmt("%s%s", prefix, sm_path);

+ free(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);

+

+ if (validate_submodule_path(add_data.sm_path) < 0)

+ exit(128);

+

+ die_on_index_match(add_data.sm_path, force);

+ die_on_repo_without_commits(add_data.sm_path);

+

+ if (!force) {

+ 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 ((ret = pipe_command(&cp, NULL, 0, NULL, 0, &sb, 0))) {

+ strbuf_complete_line(&sb);

+ fputs(sb.buf, stderr);

+ goto cleanup;

+ }

+ }

+

+ 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))

+ goto cleanup;

+ configure_added_submodule(&add_data);

+

+ ret = 0;

+cleanup:

+ free(add_data.sm_path);

+ free(to_free);

+ strbuf_release(&sb);

+

+ return ret;

+}

+

+int cmd_submodule__helper(int argc, const char **argv, const char *prefix)

+{

+ parse_opt_subcommand_fn *fn = NULL;

+ const char *const usage[] = {

+ N_("git submodule--helper <command>"),

+ NULL

+ };

+ struct option options[] = {

+ OPT_SUBCOMMAND("clone", &fn, module_clone),

+ OPT_SUBCOMMAND("add", &fn, module_add),

+ OPT_SUBCOMMAND("update", &fn, module_update),

+ OPT_SUBCOMMAND("foreach", &fn, module_foreach),

+ OPT_SUBCOMMAND("init", &fn, module_init),

+ OPT_SUBCOMMAND("status", &fn, module_status),

+ OPT_SUBCOMMAND("sync", &fn, module_sync),

+ OPT_SUBCOMMAND("deinit", &fn, module_deinit),

+ OPT_SUBCOMMAND("summary", &fn, module_summary),

+ OPT_SUBCOMMAND("push-check", &fn, push_check),

+ OPT_SUBCOMMAND("absorbgitdirs", &fn, absorb_git_dirs),

+ OPT_SUBCOMMAND("set-url", &fn, module_set_url),

+ OPT_SUBCOMMAND("set-branch", &fn, module_set_branch),

+ OPT_SUBCOMMAND("create-branch", &fn, module_create_branch),

+ OPT_END()

+ };

+ argc = parse_options(argc, argv, prefix, options, usage, 0);

+ return fn(argc, argv, prefix);