3 #include "parse-options.h"
9 #include "submodule-config.h"
10 #include "string-list.h"
11 #include "run-command.h"
14 const struct cache_entry **entries;
17 #define MODULE_LIST_INIT { NULL, 0, 0 }
19 static int module_list_compute(int argc, const char **argv,
21 struct pathspec *pathspec,
22 struct module_list *list)
25 char *ps_matched = NULL;
26 parse_pathspec(pathspec, 0,
27 PATHSPEC_PREFER_FULL |
28 PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
32 ps_matched = xcalloc(pathspec->nr, 1);
35 die(_("index file corrupt"));
37 for (i = 0; i < active_nr; i++) {
38 const struct cache_entry *ce = active_cache[i];
40 if (!match_pathspec(pathspec, ce->name, ce_namelen(ce),
42 !S_ISGITLINK(ce->ce_mode))
45 ALLOC_GROW(list->entries, list->nr + 1, list->alloc);
46 list->entries[list->nr++] = ce;
47 while (i + 1 < active_nr &&
48 !strcmp(ce->name, active_cache[i + 1]->name))
50 * Skip entries with the same name in different stages
51 * to make sure an entry is returned only once.
56 if (ps_matched && report_path_error(ps_matched, pathspec, prefix))
64 static int module_list(int argc, const char **argv, const char *prefix)
67 struct pathspec pathspec;
68 struct module_list list = MODULE_LIST_INIT;
70 struct option module_list_options[] = {
71 OPT_STRING(0, "prefix", &prefix,
73 N_("alternative anchor for relative paths")),
77 const char *const git_submodule_helper_usage[] = {
78 N_("git submodule--helper list [--prefix=<path>] [<path>...]"),
82 argc = parse_options(argc, argv, prefix, module_list_options,
83 git_submodule_helper_usage, 0);
85 if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) {
86 printf("#unmatched\n");
90 for (i = 0; i < list.nr; i++) {
91 const struct cache_entry *ce = list.entries[i];
94 printf("%06o %s U\t", ce->ce_mode, sha1_to_hex(null_sha1));
96 printf("%06o %s %d\t", ce->ce_mode, sha1_to_hex(ce->sha1), ce_stage(ce));
98 utf8_fprintf(stdout, "%s\n", ce->name);
103 static int module_name(int argc, const char **argv, const char *prefix)
105 const struct submodule *sub;
108 usage(_("git submodule--helper name <path>"));
111 sub = submodule_from_path(null_sha1, argv[1]);
114 die(_("no submodule mapping found in .gitmodules for path '%s'"),
117 printf("%s\n", sub->name);
123 * Rules to sanitize configuration variables that are Ok to be passed into
124 * submodule operations from the parent project using "-c". Should only
125 * include keys which are both (a) safe and (b) necessary for proper
128 static int submodule_config_ok(const char *var)
130 if (starts_with(var, "credential."))
135 static int sanitize_submodule_config(const char *var, const char *value, void *data)
137 struct strbuf *out = data;
139 if (submodule_config_ok(var)) {
141 strbuf_addch(out, ' ');
144 sq_quotef(out, "%s=%s", var, value);
146 sq_quote_buf(out, var);
152 static void prepare_submodule_repo_env(struct argv_array *out)
154 const char * const *var;
156 for (var = local_repo_env; *var; var++) {
157 if (!strcmp(*var, CONFIG_DATA_ENVIRONMENT)) {
158 struct strbuf sanitized_config = STRBUF_INIT;
159 git_config_from_parameters(sanitize_submodule_config,
161 argv_array_pushf(out, "%s=%s", *var, sanitized_config.buf);
162 strbuf_release(&sanitized_config);
164 argv_array_push(out, *var);
170 static int clone_submodule(const char *path, const char *gitdir, const char *url,
171 const char *depth, const char *reference, int quiet)
173 struct child_process cp;
174 child_process_init(&cp);
176 argv_array_push(&cp.args, "clone");
177 argv_array_push(&cp.args, "--no-checkout");
179 argv_array_push(&cp.args, "--quiet");
181 argv_array_pushl(&cp.args, "--depth", depth, NULL);
182 if (reference && *reference)
183 argv_array_pushl(&cp.args, "--reference", reference, NULL);
184 if (gitdir && *gitdir)
185 argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL);
187 argv_array_push(&cp.args, url);
188 argv_array_push(&cp.args, path);
191 prepare_submodule_repo_env(&cp.env_array);
194 return run_command(&cp);
197 static int module_clone(int argc, const char **argv, const char *prefix)
199 const char *path = NULL, *name = NULL, *url = NULL;
200 const char *reference = NULL, *depth = NULL;
202 FILE *submodule_dot_git;
203 char *sm_gitdir, *cwd, *p;
204 struct strbuf rel_path = STRBUF_INIT;
205 struct strbuf sb = STRBUF_INIT;
207 struct option module_clone_options[] = {
208 OPT_STRING(0, "prefix", &prefix,
210 N_("alternative anchor for relative paths")),
211 OPT_STRING(0, "path", &path,
213 N_("where the new submodule will be cloned to")),
214 OPT_STRING(0, "name", &name,
216 N_("name of the new submodule")),
217 OPT_STRING(0, "url", &url,
219 N_("url where to clone the submodule from")),
220 OPT_STRING(0, "reference", &reference,
222 N_("reference repository")),
223 OPT_STRING(0, "depth", &depth,
225 N_("depth for shallow clones")),
226 OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
230 const char *const git_submodule_helper_usage[] = {
231 N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
232 "[--reference <repository>] [--name <name>] [--depth <depth>] "
233 "--url <url> --path <path>"),
237 argc = parse_options(argc, argv, prefix, module_clone_options,
238 git_submodule_helper_usage, 0);
240 if (argc || !url || !path)
241 usage_with_options(git_submodule_helper_usage,
242 module_clone_options);
244 strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
245 sm_gitdir = strbuf_detach(&sb, NULL);
247 if (!file_exists(sm_gitdir)) {
248 if (safe_create_leading_directories_const(sm_gitdir) < 0)
249 die(_("could not create directory '%s'"), sm_gitdir);
250 if (clone_submodule(path, sm_gitdir, url, depth, reference, quiet))
251 die(_("clone of '%s' into submodule path '%s' failed"),
254 if (safe_create_leading_directories_const(path) < 0)
255 die(_("could not create directory '%s'"), path);
256 strbuf_addf(&sb, "%s/index", sm_gitdir);
257 unlink_or_warn(sb.buf);
261 /* Write a .git file in the submodule to redirect to the superproject. */
262 if (safe_create_leading_directories_const(path) < 0)
263 die(_("could not create directory '%s'"), path);
266 strbuf_addf(&sb, "%s/.git", path);
268 strbuf_addstr(&sb, ".git");
270 if (safe_create_leading_directories_const(sb.buf) < 0)
271 die(_("could not create leading directories of '%s'"), sb.buf);
272 submodule_dot_git = fopen(sb.buf, "w");
273 if (!submodule_dot_git)
274 die_errno(_("cannot open file '%s'"), sb.buf);
276 fprintf(submodule_dot_git, "gitdir: %s\n",
277 relative_path(sm_gitdir, path, &rel_path));
278 if (fclose(submodule_dot_git))
279 die(_("could not close file %s"), sb.buf);
281 strbuf_reset(&rel_path);
284 /* Redirect the worktree of the submodule in the superproject's config */
285 if (!is_absolute_path(sm_gitdir)) {
286 strbuf_addf(&sb, "%s/%s", cwd, sm_gitdir);
288 sm_gitdir = strbuf_detach(&sb, NULL);
291 strbuf_addf(&sb, "%s/%s", cwd, path);
292 p = git_pathdup_submodule(path, "config");
294 die(_("could not get submodule directory for '%s'"), path);
295 git_config_set_in_file(p, "core.worktree",
296 relative_path(sb.buf, sm_gitdir, &rel_path));
298 strbuf_release(&rel_path);
305 static int module_sanitize_config(int argc, const char **argv, const char *prefix)
307 struct strbuf sanitized_config = STRBUF_INIT;
310 usage(_("git submodule--helper sanitize-config"));
312 git_config_from_parameters(sanitize_submodule_config, &sanitized_config);
313 if (sanitized_config.len)
314 printf("%s\n", sanitized_config.buf);
316 strbuf_release(&sanitized_config);
321 struct submodule_update_clone {
322 /* index into 'list', the list of submodules to look into for cloning */
324 struct module_list list;
325 unsigned warn_if_uninitialized : 1;
327 /* update parameter passed via commandline */
328 struct submodule_update_strategy update;
330 /* configuration parameters which are passed on to the children */
332 const char *reference;
334 const char *recursive_prefix;
337 /* Machine-readable status lines to be consumed by git-submodule.sh */
338 struct string_list projectlines;
340 /* If we want to stop as fast as possible and return an error */
341 unsigned quickstop : 1;
343 #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
344 SUBMODULE_UPDATE_STRATEGY_INIT, 0, NULL, NULL, NULL, NULL, \
345 STRING_LIST_INIT_DUP, 0}
348 * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
349 * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise.
351 static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
352 struct child_process *child,
353 struct submodule_update_clone *suc,
356 const struct submodule *sub = NULL;
357 struct strbuf displaypath_sb = STRBUF_INIT;
358 struct strbuf sb = STRBUF_INIT;
359 const char *displaypath = NULL;
361 int needs_cloning = 0;
364 if (suc->recursive_prefix)
365 strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
367 strbuf_addf(&sb, "%s", ce->name);
368 strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
369 strbuf_addch(out, '\n');
373 sub = submodule_from_path(null_sha1, ce->name);
375 if (suc->recursive_prefix)
376 displaypath = relative_path(suc->recursive_prefix,
377 ce->name, &displaypath_sb);
379 displaypath = ce->name;
381 if (suc->update.type == SM_UPDATE_NONE
382 || (suc->update.type == SM_UPDATE_UNSPECIFIED
383 && sub->update_strategy.type == SM_UPDATE_NONE)) {
384 strbuf_addf(out, _("Skipping submodule '%s'"), displaypath);
385 strbuf_addch(out, '\n');
390 * Looking up the url in .git/config.
391 * We must not fall back to .gitmodules as we only want
392 * to process configured submodules.
395 strbuf_addf(&sb, "submodule.%s.url", sub->name);
396 git_config_get_string(sb.buf, &url);
399 * Only mention uninitialized submodules when their
400 * path have been specified
402 if (suc->warn_if_uninitialized) {
404 _("Submodule path '%s' not initialized"),
406 strbuf_addch(out, '\n');
408 _("Maybe you want to use 'update --init'?"));
409 strbuf_addch(out, '\n');
415 strbuf_addf(&sb, "%s/.git", ce->name);
416 needs_cloning = !file_exists(sb.buf);
419 strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode,
420 sha1_to_hex(ce->sha1), ce_stage(ce),
421 needs_cloning, ce->name);
422 string_list_append(&suc->projectlines, sb.buf);
429 child->stdout_to_stderr = 1;
431 argv_array_push(&child->args, "submodule--helper");
432 argv_array_push(&child->args, "clone");
434 argv_array_push(&child->args, "--quiet");
436 argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
437 argv_array_pushl(&child->args, "--path", sub->path, NULL);
438 argv_array_pushl(&child->args, "--name", sub->name, NULL);
439 argv_array_pushl(&child->args, "--url", url, NULL);
441 argv_array_push(&child->args, suc->reference);
443 argv_array_push(&child->args, suc->depth);
447 strbuf_reset(&displaypath_sb);
450 return needs_cloning;
453 static int update_clone_get_next_task(struct child_process *child,
458 struct submodule_update_clone *suc = suc_cb;
460 for (; suc->current < suc->list.nr; suc->current++) {
461 const struct cache_entry *ce = suc->list.entries[suc->current];
462 if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
470 static int update_clone_start_failure(struct strbuf *err,
474 struct submodule_update_clone *suc = suc_cb;
479 static int update_clone_task_finished(int result,
484 struct submodule_update_clone *suc = suc_cb;
493 static int update_clone(int argc, const char **argv, const char *prefix)
495 const char *update = NULL;
497 struct string_list_item *item;
498 struct pathspec pathspec;
499 struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
501 struct option module_update_clone_options[] = {
502 OPT_STRING(0, "prefix", &prefix,
504 N_("path into the working tree")),
505 OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix,
507 N_("path into the working tree, across nested "
508 "submodule boundaries")),
509 OPT_STRING(0, "update", &update,
511 N_("rebase, merge, checkout or none")),
512 OPT_STRING(0, "reference", &suc.reference, N_("repo"),
513 N_("reference repository")),
514 OPT_STRING(0, "depth", &suc.depth, "<depth>",
515 N_("Create a shallow clone truncated to the "
516 "specified number of revisions")),
517 OPT_INTEGER('j', "jobs", &max_jobs,
518 N_("parallel jobs")),
519 OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
523 const char *const git_submodule_helper_usage[] = {
524 N_("git submodule--helper update_clone [--prefix=<path>] [<path>...]"),
529 argc = parse_options(argc, argv, prefix, module_update_clone_options,
530 git_submodule_helper_usage, 0);
533 if (parse_submodule_update_strategy(update, &suc.update) < 0)
534 die(_("bad value for update parameter"));
536 if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0)
540 suc.warn_if_uninitialized = 1;
542 /* Overlay the parsed .gitmodules file with .git/config */
544 git_config(submodule_config, NULL);
547 max_jobs = parallel_submodules();
549 run_processes_parallel(max_jobs,
550 update_clone_get_next_task,
551 update_clone_start_failure,
552 update_clone_task_finished,
556 * We saved the output and put it out all at once now.
558 * - the listener does not have to interleave their (checkout)
559 * work with our fetching. The writes involved in a
560 * checkout involve more straightforward sequential I/O.
561 * - the listener can avoid doing any work if fetching failed.
566 for_each_string_list_item(item, &suc.projectlines)
567 utf8_fprintf(stdout, "%s", item->string);
574 int (*fn)(int, const char **, const char *);
577 static struct cmd_struct commands[] = {
578 {"list", module_list},
579 {"name", module_name},
580 {"clone", module_clone},
581 {"sanitize-config", module_sanitize_config},
582 {"update-clone", update_clone}
585 int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
589 die(_("submodule--helper subcommand must be "
590 "called with a subcommand"));
592 for (i = 0; i < ARRAY_SIZE(commands); i++)
593 if (!strcmp(argv[1], commands[i].cmd))
594 return commands[i].fn(argc - 1, argv + 1, prefix);
596 die(_("'%s' is not a valid submodule--helper "
597 "subcommand"), argv[1]);