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1 | /* | |
2 | * Builtin "git clone" | |
3 | * | |
4 | * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>, | |
5 | * 2008 Daniel Barkalow <barkalow@iabervon.org> | |
6 | * Based on git-commit.sh by Junio C Hamano and Linus Torvalds | |
7 | * | |
8 | * Clone a repository into a different directory that does not yet exist. | |
9 | */ | |
10 | ||
11 | #include "builtin.h" | |
12 | #include "config.h" | |
13 | #include "lockfile.h" | |
14 | #include "parse-options.h" | |
15 | #include "fetch-pack.h" | |
16 | #include "refs.h" | |
17 | #include "tree.h" | |
18 | #include "tree-walk.h" | |
19 | #include "unpack-trees.h" | |
20 | #include "transport.h" | |
21 | #include "strbuf.h" | |
22 | #include "dir.h" | |
23 | #include "sigchain.h" | |
24 | #include "branch.h" | |
25 | #include "remote.h" | |
26 | #include "run-command.h" | |
27 | #include "connected.h" | |
28 | #include "packfile.h" | |
29 | ||
30 | /* | |
31 | * Overall FIXMEs: | |
32 | * - respect DB_ENVIRONMENT for .git/objects. | |
33 | * | |
34 | * Implementation notes: | |
35 | * - dropping use-separate-remote and no-separate-remote compatibility | |
36 | * | |
37 | */ | |
38 | static const char * const builtin_clone_usage[] = { | |
39 | N_("git clone [<options>] [--] <repo> [<dir>]"), | |
40 | NULL | |
41 | }; | |
42 | ||
43 | static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1; | |
44 | static int option_local = -1, option_no_hardlinks, option_shared; | |
45 | static int option_no_tags; | |
46 | static int option_shallow_submodules; | |
47 | static int deepen; | |
48 | static char *option_template, *option_depth, *option_since; | |
49 | static char *option_origin = NULL; | |
50 | static char *option_branch = NULL; | |
51 | static struct string_list option_not = STRING_LIST_INIT_NODUP; | |
52 | static const char *real_git_dir; | |
53 | static char *option_upload_pack = "git-upload-pack"; | |
54 | static int option_verbosity; | |
55 | static int option_progress = -1; | |
56 | static enum transport_family family; | |
57 | static struct string_list option_config = STRING_LIST_INIT_NODUP; | |
58 | static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; | |
59 | static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP; | |
60 | static int option_dissociate; | |
61 | static int max_jobs = -1; | |
62 | static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP; | |
63 | ||
64 | static int recurse_submodules_cb(const struct option *opt, | |
65 | const char *arg, int unset) | |
66 | { | |
67 | if (unset) | |
68 | string_list_clear((struct string_list *)opt->value, 0); | |
69 | else if (arg) | |
70 | string_list_append((struct string_list *)opt->value, arg); | |
71 | else | |
72 | string_list_append((struct string_list *)opt->value, | |
73 | (const char *)opt->defval); | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | static struct option builtin_clone_options[] = { | |
79 | OPT__VERBOSITY(&option_verbosity), | |
80 | OPT_BOOL(0, "progress", &option_progress, | |
81 | N_("force progress reporting")), | |
82 | OPT_BOOL('n', "no-checkout", &option_no_checkout, | |
83 | N_("don't create a checkout")), | |
84 | OPT_BOOL(0, "bare", &option_bare, N_("create a bare repository")), | |
85 | OPT_HIDDEN_BOOL(0, "naked", &option_bare, | |
86 | N_("create a bare repository")), | |
87 | OPT_BOOL(0, "mirror", &option_mirror, | |
88 | N_("create a mirror repository (implies bare)")), | |
89 | OPT_BOOL('l', "local", &option_local, | |
90 | N_("to clone from a local repository")), | |
91 | OPT_BOOL(0, "no-hardlinks", &option_no_hardlinks, | |
92 | N_("don't use local hardlinks, always copy")), | |
93 | OPT_BOOL('s', "shared", &option_shared, | |
94 | N_("setup as shared repository")), | |
95 | { OPTION_CALLBACK, 0, "recursive", &option_recurse_submodules, | |
96 | N_("pathspec"), N_("initialize submodules in the clone"), | |
97 | PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, recurse_submodules_cb, | |
98 | (intptr_t)"." }, | |
99 | { OPTION_CALLBACK, 0, "recurse-submodules", &option_recurse_submodules, | |
100 | N_("pathspec"), N_("initialize submodules in the clone"), | |
101 | PARSE_OPT_OPTARG, recurse_submodules_cb, (intptr_t)"." }, | |
102 | OPT_INTEGER('j', "jobs", &max_jobs, | |
103 | N_("number of submodules cloned in parallel")), | |
104 | OPT_STRING(0, "template", &option_template, N_("template-directory"), | |
105 | N_("directory from which templates will be used")), | |
106 | OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"), | |
107 | N_("reference repository")), | |
108 | OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference, | |
109 | N_("repo"), N_("reference repository")), | |
110 | OPT_BOOL(0, "dissociate", &option_dissociate, | |
111 | N_("use --reference only while cloning")), | |
112 | OPT_STRING('o', "origin", &option_origin, N_("name"), | |
113 | N_("use <name> instead of 'origin' to track upstream")), | |
114 | OPT_STRING('b', "branch", &option_branch, N_("branch"), | |
115 | N_("checkout <branch> instead of the remote's HEAD")), | |
116 | OPT_STRING('u', "upload-pack", &option_upload_pack, N_("path"), | |
117 | N_("path to git-upload-pack on the remote")), | |
118 | OPT_STRING(0, "depth", &option_depth, N_("depth"), | |
119 | N_("create a shallow clone of that depth")), | |
120 | OPT_STRING(0, "shallow-since", &option_since, N_("time"), | |
121 | N_("create a shallow clone since a specific time")), | |
122 | OPT_STRING_LIST(0, "shallow-exclude", &option_not, N_("revision"), | |
123 | N_("deepen history of shallow clone, excluding rev")), | |
124 | OPT_BOOL(0, "single-branch", &option_single_branch, | |
125 | N_("clone only one branch, HEAD or --branch")), | |
126 | OPT_BOOL(0, "no-tags", &option_no_tags, | |
127 | N_("don't clone any tags, and make later fetches not to follow them")), | |
128 | OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules, | |
129 | N_("any cloned submodules will be shallow")), | |
130 | OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), | |
131 | N_("separate git dir from working tree")), | |
132 | OPT_STRING_LIST('c', "config", &option_config, N_("key=value"), | |
133 | N_("set config inside the new repository")), | |
134 | OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), | |
135 | TRANSPORT_FAMILY_IPV4), | |
136 | OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), | |
137 | TRANSPORT_FAMILY_IPV6), | |
138 | OPT_END() | |
139 | }; | |
140 | ||
141 | static const char *get_repo_path_1(struct strbuf *path, int *is_bundle) | |
142 | { | |
143 | static char *suffix[] = { "/.git", "", ".git/.git", ".git" }; | |
144 | static char *bundle_suffix[] = { ".bundle", "" }; | |
145 | size_t baselen = path->len; | |
146 | struct stat st; | |
147 | int i; | |
148 | ||
149 | for (i = 0; i < ARRAY_SIZE(suffix); i++) { | |
150 | strbuf_setlen(path, baselen); | |
151 | strbuf_addstr(path, suffix[i]); | |
152 | if (stat(path->buf, &st)) | |
153 | continue; | |
154 | if (S_ISDIR(st.st_mode) && is_git_directory(path->buf)) { | |
155 | *is_bundle = 0; | |
156 | return path->buf; | |
157 | } else if (S_ISREG(st.st_mode) && st.st_size > 8) { | |
158 | /* Is it a "gitfile"? */ | |
159 | char signature[8]; | |
160 | const char *dst; | |
161 | int len, fd = open(path->buf, O_RDONLY); | |
162 | if (fd < 0) | |
163 | continue; | |
164 | len = read_in_full(fd, signature, 8); | |
165 | close(fd); | |
166 | if (len != 8 || strncmp(signature, "gitdir: ", 8)) | |
167 | continue; | |
168 | dst = read_gitfile(path->buf); | |
169 | if (dst) { | |
170 | *is_bundle = 0; | |
171 | return dst; | |
172 | } | |
173 | } | |
174 | } | |
175 | ||
176 | for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { | |
177 | strbuf_setlen(path, baselen); | |
178 | strbuf_addstr(path, bundle_suffix[i]); | |
179 | if (!stat(path->buf, &st) && S_ISREG(st.st_mode)) { | |
180 | *is_bundle = 1; | |
181 | return path->buf; | |
182 | } | |
183 | } | |
184 | ||
185 | return NULL; | |
186 | } | |
187 | ||
188 | static char *get_repo_path(const char *repo, int *is_bundle) | |
189 | { | |
190 | struct strbuf path = STRBUF_INIT; | |
191 | const char *raw; | |
192 | char *canon; | |
193 | ||
194 | strbuf_addstr(&path, repo); | |
195 | raw = get_repo_path_1(&path, is_bundle); | |
196 | canon = raw ? absolute_pathdup(raw) : NULL; | |
197 | strbuf_release(&path); | |
198 | return canon; | |
199 | } | |
200 | ||
201 | static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) | |
202 | { | |
203 | const char *end = repo + strlen(repo), *start, *ptr; | |
204 | size_t len; | |
205 | char *dir; | |
206 | ||
207 | /* | |
208 | * Skip scheme. | |
209 | */ | |
210 | start = strstr(repo, "://"); | |
211 | if (start == NULL) | |
212 | start = repo; | |
213 | else | |
214 | start += 3; | |
215 | ||
216 | /* | |
217 | * Skip authentication data. The stripping does happen | |
218 | * greedily, such that we strip up to the last '@' inside | |
219 | * the host part. | |
220 | */ | |
221 | for (ptr = start; ptr < end && !is_dir_sep(*ptr); ptr++) { | |
222 | if (*ptr == '@') | |
223 | start = ptr + 1; | |
224 | } | |
225 | ||
226 | /* | |
227 | * Strip trailing spaces, slashes and /.git | |
228 | */ | |
229 | while (start < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) | |
230 | end--; | |
231 | if (end - start > 5 && is_dir_sep(end[-5]) && | |
232 | !strncmp(end - 4, ".git", 4)) { | |
233 | end -= 5; | |
234 | while (start < end && is_dir_sep(end[-1])) | |
235 | end--; | |
236 | } | |
237 | ||
238 | /* | |
239 | * Strip trailing port number if we've got only a | |
240 | * hostname (that is, there is no dir separator but a | |
241 | * colon). This check is required such that we do not | |
242 | * strip URI's like '/foo/bar:2222.git', which should | |
243 | * result in a dir '2222' being guessed due to backwards | |
244 | * compatibility. | |
245 | */ | |
246 | if (memchr(start, '/', end - start) == NULL | |
247 | && memchr(start, ':', end - start) != NULL) { | |
248 | ptr = end; | |
249 | while (start < ptr && isdigit(ptr[-1]) && ptr[-1] != ':') | |
250 | ptr--; | |
251 | if (start < ptr && ptr[-1] == ':') | |
252 | end = ptr - 1; | |
253 | } | |
254 | ||
255 | /* | |
256 | * Find last component. To remain backwards compatible we | |
257 | * also regard colons as path separators, such that | |
258 | * cloning a repository 'foo:bar.git' would result in a | |
259 | * directory 'bar' being guessed. | |
260 | */ | |
261 | ptr = end; | |
262 | while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') | |
263 | ptr--; | |
264 | start = ptr; | |
265 | ||
266 | /* | |
267 | * Strip .{bundle,git}. | |
268 | */ | |
269 | len = end - start; | |
270 | strip_suffix_mem(start, &len, is_bundle ? ".bundle" : ".git"); | |
271 | ||
272 | if (!len || (len == 1 && *start == '/')) | |
273 | die(_("No directory name could be guessed.\n" | |
274 | "Please specify a directory on the command line")); | |
275 | ||
276 | if (is_bare) | |
277 | dir = xstrfmt("%.*s.git", (int)len, start); | |
278 | else | |
279 | dir = xstrndup(start, len); | |
280 | /* | |
281 | * Replace sequences of 'control' characters and whitespace | |
282 | * with one ascii space, remove leading and trailing spaces. | |
283 | */ | |
284 | if (*dir) { | |
285 | char *out = dir; | |
286 | int prev_space = 1 /* strip leading whitespace */; | |
287 | for (end = dir; *end; ++end) { | |
288 | char ch = *end; | |
289 | if ((unsigned char)ch < '\x20') | |
290 | ch = '\x20'; | |
291 | if (isspace(ch)) { | |
292 | if (prev_space) | |
293 | continue; | |
294 | prev_space = 1; | |
295 | } else | |
296 | prev_space = 0; | |
297 | *out++ = ch; | |
298 | } | |
299 | *out = '\0'; | |
300 | if (out > dir && prev_space) | |
301 | out[-1] = '\0'; | |
302 | } | |
303 | return dir; | |
304 | } | |
305 | ||
306 | static void strip_trailing_slashes(char *dir) | |
307 | { | |
308 | char *end = dir + strlen(dir); | |
309 | ||
310 | while (dir < end - 1 && is_dir_sep(end[-1])) | |
311 | end--; | |
312 | *end = '\0'; | |
313 | } | |
314 | ||
315 | static int add_one_reference(struct string_list_item *item, void *cb_data) | |
316 | { | |
317 | struct strbuf err = STRBUF_INIT; | |
318 | int *required = cb_data; | |
319 | char *ref_git = compute_alternate_path(item->string, &err); | |
320 | ||
321 | if (!ref_git) { | |
322 | if (*required) | |
323 | die("%s", err.buf); | |
324 | else | |
325 | fprintf(stderr, | |
326 | _("info: Could not add alternate for '%s': %s\n"), | |
327 | item->string, err.buf); | |
328 | } else { | |
329 | struct strbuf sb = STRBUF_INIT; | |
330 | strbuf_addf(&sb, "%s/objects", ref_git); | |
331 | add_to_alternates_file(sb.buf); | |
332 | strbuf_release(&sb); | |
333 | } | |
334 | ||
335 | strbuf_release(&err); | |
336 | free(ref_git); | |
337 | return 0; | |
338 | } | |
339 | ||
340 | static void setup_reference(void) | |
341 | { | |
342 | int required = 1; | |
343 | for_each_string_list(&option_required_reference, | |
344 | add_one_reference, &required); | |
345 | required = 0; | |
346 | for_each_string_list(&option_optional_reference, | |
347 | add_one_reference, &required); | |
348 | } | |
349 | ||
350 | static void copy_alternates(struct strbuf *src, struct strbuf *dst, | |
351 | const char *src_repo) | |
352 | { | |
353 | /* | |
354 | * Read from the source objects/info/alternates file | |
355 | * and copy the entries to corresponding file in the | |
356 | * destination repository with add_to_alternates_file(). | |
357 | * Both src and dst have "$path/objects/info/alternates". | |
358 | * | |
359 | * Instead of copying bit-for-bit from the original, | |
360 | * we need to append to existing one so that the already | |
361 | * created entry via "clone -s" is not lost, and also | |
362 | * to turn entries with paths relative to the original | |
363 | * absolute, so that they can be used in the new repository. | |
364 | */ | |
365 | FILE *in = xfopen(src->buf, "r"); | |
366 | struct strbuf line = STRBUF_INIT; | |
367 | ||
368 | while (strbuf_getline(&line, in) != EOF) { | |
369 | char *abs_path; | |
370 | if (!line.len || line.buf[0] == '#') | |
371 | continue; | |
372 | if (is_absolute_path(line.buf)) { | |
373 | add_to_alternates_file(line.buf); | |
374 | continue; | |
375 | } | |
376 | abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf); | |
377 | if (!normalize_path_copy(abs_path, abs_path)) | |
378 | add_to_alternates_file(abs_path); | |
379 | else | |
380 | warning("skipping invalid relative alternate: %s/%s", | |
381 | src_repo, line.buf); | |
382 | free(abs_path); | |
383 | } | |
384 | strbuf_release(&line); | |
385 | fclose(in); | |
386 | } | |
387 | ||
388 | static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, | |
389 | const char *src_repo, int src_baselen) | |
390 | { | |
391 | struct dirent *de; | |
392 | struct stat buf; | |
393 | int src_len, dest_len; | |
394 | DIR *dir; | |
395 | ||
396 | dir = opendir(src->buf); | |
397 | if (!dir) | |
398 | die_errno(_("failed to open '%s'"), src->buf); | |
399 | ||
400 | if (mkdir(dest->buf, 0777)) { | |
401 | if (errno != EEXIST) | |
402 | die_errno(_("failed to create directory '%s'"), dest->buf); | |
403 | else if (stat(dest->buf, &buf)) | |
404 | die_errno(_("failed to stat '%s'"), dest->buf); | |
405 | else if (!S_ISDIR(buf.st_mode)) | |
406 | die(_("%s exists and is not a directory"), dest->buf); | |
407 | } | |
408 | ||
409 | strbuf_addch(src, '/'); | |
410 | src_len = src->len; | |
411 | strbuf_addch(dest, '/'); | |
412 | dest_len = dest->len; | |
413 | ||
414 | while ((de = readdir(dir)) != NULL) { | |
415 | strbuf_setlen(src, src_len); | |
416 | strbuf_addstr(src, de->d_name); | |
417 | strbuf_setlen(dest, dest_len); | |
418 | strbuf_addstr(dest, de->d_name); | |
419 | if (stat(src->buf, &buf)) { | |
420 | warning (_("failed to stat %s\n"), src->buf); | |
421 | continue; | |
422 | } | |
423 | if (S_ISDIR(buf.st_mode)) { | |
424 | if (de->d_name[0] != '.') | |
425 | copy_or_link_directory(src, dest, | |
426 | src_repo, src_baselen); | |
427 | continue; | |
428 | } | |
429 | ||
430 | /* Files that cannot be copied bit-for-bit... */ | |
431 | if (!strcmp(src->buf + src_baselen, "/info/alternates")) { | |
432 | copy_alternates(src, dest, src_repo); | |
433 | continue; | |
434 | } | |
435 | ||
436 | if (unlink(dest->buf) && errno != ENOENT) | |
437 | die_errno(_("failed to unlink '%s'"), dest->buf); | |
438 | if (!option_no_hardlinks) { | |
439 | if (!link(src->buf, dest->buf)) | |
440 | continue; | |
441 | if (option_local > 0) | |
442 | die_errno(_("failed to create link '%s'"), dest->buf); | |
443 | option_no_hardlinks = 1; | |
444 | } | |
445 | if (copy_file_with_time(dest->buf, src->buf, 0666)) | |
446 | die_errno(_("failed to copy file to '%s'"), dest->buf); | |
447 | } | |
448 | closedir(dir); | |
449 | } | |
450 | ||
451 | static void clone_local(const char *src_repo, const char *dest_repo) | |
452 | { | |
453 | if (option_shared) { | |
454 | struct strbuf alt = STRBUF_INIT; | |
455 | strbuf_addf(&alt, "%s/objects", src_repo); | |
456 | add_to_alternates_file(alt.buf); | |
457 | strbuf_release(&alt); | |
458 | } else { | |
459 | struct strbuf src = STRBUF_INIT; | |
460 | struct strbuf dest = STRBUF_INIT; | |
461 | get_common_dir(&src, src_repo); | |
462 | get_common_dir(&dest, dest_repo); | |
463 | strbuf_addstr(&src, "/objects"); | |
464 | strbuf_addstr(&dest, "/objects"); | |
465 | copy_or_link_directory(&src, &dest, src_repo, src.len); | |
466 | strbuf_release(&src); | |
467 | strbuf_release(&dest); | |
468 | } | |
469 | ||
470 | if (0 <= option_verbosity) | |
471 | fprintf(stderr, _("done.\n")); | |
472 | } | |
473 | ||
474 | static const char *junk_work_tree; | |
475 | static const char *junk_git_dir; | |
476 | static enum { | |
477 | JUNK_LEAVE_NONE, | |
478 | JUNK_LEAVE_REPO, | |
479 | JUNK_LEAVE_ALL | |
480 | } junk_mode = JUNK_LEAVE_NONE; | |
481 | ||
482 | static const char junk_leave_repo_msg[] = | |
483 | N_("Clone succeeded, but checkout failed.\n" | |
484 | "You can inspect what was checked out with 'git status'\n" | |
485 | "and retry the checkout with 'git checkout -f HEAD'\n"); | |
486 | ||
487 | static void remove_junk(void) | |
488 | { | |
489 | struct strbuf sb = STRBUF_INIT; | |
490 | ||
491 | switch (junk_mode) { | |
492 | case JUNK_LEAVE_REPO: | |
493 | warning("%s", _(junk_leave_repo_msg)); | |
494 | /* fall-through */ | |
495 | case JUNK_LEAVE_ALL: | |
496 | return; | |
497 | default: | |
498 | /* proceed to removal */ | |
499 | break; | |
500 | } | |
501 | ||
502 | if (junk_git_dir) { | |
503 | strbuf_addstr(&sb, junk_git_dir); | |
504 | remove_dir_recursively(&sb, 0); | |
505 | strbuf_reset(&sb); | |
506 | } | |
507 | if (junk_work_tree) { | |
508 | strbuf_addstr(&sb, junk_work_tree); | |
509 | remove_dir_recursively(&sb, 0); | |
510 | } | |
511 | strbuf_release(&sb); | |
512 | } | |
513 | ||
514 | static void remove_junk_on_signal(int signo) | |
515 | { | |
516 | remove_junk(); | |
517 | sigchain_pop(signo); | |
518 | raise(signo); | |
519 | } | |
520 | ||
521 | static struct ref *find_remote_branch(const struct ref *refs, const char *branch) | |
522 | { | |
523 | struct ref *ref; | |
524 | struct strbuf head = STRBUF_INIT; | |
525 | strbuf_addstr(&head, "refs/heads/"); | |
526 | strbuf_addstr(&head, branch); | |
527 | ref = find_ref_by_name(refs, head.buf); | |
528 | strbuf_release(&head); | |
529 | ||
530 | if (ref) | |
531 | return ref; | |
532 | ||
533 | strbuf_addstr(&head, "refs/tags/"); | |
534 | strbuf_addstr(&head, branch); | |
535 | ref = find_ref_by_name(refs, head.buf); | |
536 | strbuf_release(&head); | |
537 | ||
538 | return ref; | |
539 | } | |
540 | ||
541 | static struct ref *wanted_peer_refs(const struct ref *refs, | |
542 | struct refspec *refspec) | |
543 | { | |
544 | struct ref *head = copy_ref(find_ref_by_name(refs, "HEAD")); | |
545 | struct ref *local_refs = head; | |
546 | struct ref **tail = head ? &head->next : &local_refs; | |
547 | ||
548 | if (option_single_branch) { | |
549 | struct ref *remote_head = NULL; | |
550 | ||
551 | if (!option_branch) | |
552 | remote_head = guess_remote_head(head, refs, 0); | |
553 | else { | |
554 | local_refs = NULL; | |
555 | tail = &local_refs; | |
556 | remote_head = copy_ref(find_remote_branch(refs, option_branch)); | |
557 | } | |
558 | ||
559 | if (!remote_head && option_branch) | |
560 | warning(_("Could not find remote branch %s to clone."), | |
561 | option_branch); | |
562 | else { | |
563 | get_fetch_map(remote_head, refspec, &tail, 0); | |
564 | ||
565 | /* if --branch=tag, pull the requested tag explicitly */ | |
566 | get_fetch_map(remote_head, tag_refspec, &tail, 0); | |
567 | } | |
568 | } else | |
569 | get_fetch_map(refs, refspec, &tail, 0); | |
570 | ||
571 | if (!option_mirror && !option_single_branch && !option_no_tags) | |
572 | get_fetch_map(refs, tag_refspec, &tail, 0); | |
573 | ||
574 | return local_refs; | |
575 | } | |
576 | ||
577 | static void write_remote_refs(const struct ref *local_refs) | |
578 | { | |
579 | const struct ref *r; | |
580 | ||
581 | struct ref_transaction *t; | |
582 | struct strbuf err = STRBUF_INIT; | |
583 | ||
584 | t = ref_transaction_begin(&err); | |
585 | if (!t) | |
586 | die("%s", err.buf); | |
587 | ||
588 | for (r = local_refs; r; r = r->next) { | |
589 | if (!r->peer_ref) | |
590 | continue; | |
591 | if (ref_transaction_create(t, r->peer_ref->name, r->old_oid.hash, | |
592 | 0, NULL, &err)) | |
593 | die("%s", err.buf); | |
594 | } | |
595 | ||
596 | if (initial_ref_transaction_commit(t, &err)) | |
597 | die("%s", err.buf); | |
598 | ||
599 | strbuf_release(&err); | |
600 | ref_transaction_free(t); | |
601 | } | |
602 | ||
603 | static void write_followtags(const struct ref *refs, const char *msg) | |
604 | { | |
605 | const struct ref *ref; | |
606 | for (ref = refs; ref; ref = ref->next) { | |
607 | if (!starts_with(ref->name, "refs/tags/")) | |
608 | continue; | |
609 | if (ends_with(ref->name, "^{}")) | |
610 | continue; | |
611 | if (!has_object_file(&ref->old_oid)) | |
612 | continue; | |
613 | update_ref(msg, ref->name, &ref->old_oid, NULL, 0, | |
614 | UPDATE_REFS_DIE_ON_ERR); | |
615 | } | |
616 | } | |
617 | ||
618 | static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) | |
619 | { | |
620 | struct ref **rm = cb_data; | |
621 | struct ref *ref = *rm; | |
622 | ||
623 | /* | |
624 | * Skip anything missing a peer_ref, which we are not | |
625 | * actually going to write a ref for. | |
626 | */ | |
627 | while (ref && !ref->peer_ref) | |
628 | ref = ref->next; | |
629 | /* Returning -1 notes "end of list" to the caller. */ | |
630 | if (!ref) | |
631 | return -1; | |
632 | ||
633 | hashcpy(sha1, ref->old_oid.hash); | |
634 | *rm = ref->next; | |
635 | return 0; | |
636 | } | |
637 | ||
638 | static void update_remote_refs(const struct ref *refs, | |
639 | const struct ref *mapped_refs, | |
640 | const struct ref *remote_head_points_at, | |
641 | const char *branch_top, | |
642 | const char *msg, | |
643 | struct transport *transport, | |
644 | int check_connectivity) | |
645 | { | |
646 | const struct ref *rm = mapped_refs; | |
647 | ||
648 | if (check_connectivity) { | |
649 | struct check_connected_options opt = CHECK_CONNECTED_INIT; | |
650 | ||
651 | opt.transport = transport; | |
652 | opt.progress = transport->progress; | |
653 | ||
654 | if (check_connected(iterate_ref_map, &rm, &opt)) | |
655 | die(_("remote did not send all necessary objects")); | |
656 | } | |
657 | ||
658 | if (refs) { | |
659 | write_remote_refs(mapped_refs); | |
660 | if (option_single_branch && !option_no_tags) | |
661 | write_followtags(refs, msg); | |
662 | } | |
663 | ||
664 | if (remote_head_points_at && !option_bare) { | |
665 | struct strbuf head_ref = STRBUF_INIT; | |
666 | strbuf_addstr(&head_ref, branch_top); | |
667 | strbuf_addstr(&head_ref, "HEAD"); | |
668 | if (create_symref(head_ref.buf, | |
669 | remote_head_points_at->peer_ref->name, | |
670 | msg) < 0) | |
671 | die(_("unable to update %s"), head_ref.buf); | |
672 | strbuf_release(&head_ref); | |
673 | } | |
674 | } | |
675 | ||
676 | static void update_head(const struct ref *our, const struct ref *remote, | |
677 | const char *msg) | |
678 | { | |
679 | const char *head; | |
680 | if (our && skip_prefix(our->name, "refs/heads/", &head)) { | |
681 | /* Local default branch link */ | |
682 | if (create_symref("HEAD", our->name, NULL) < 0) | |
683 | die(_("unable to update HEAD")); | |
684 | if (!option_bare) { | |
685 | update_ref(msg, "HEAD", &our->old_oid, NULL, 0, | |
686 | UPDATE_REFS_DIE_ON_ERR); | |
687 | install_branch_config(0, head, option_origin, our->name); | |
688 | } | |
689 | } else if (our) { | |
690 | struct commit *c = lookup_commit_reference(&our->old_oid); | |
691 | /* --branch specifies a non-branch (i.e. tags), detach HEAD */ | |
692 | update_ref(msg, "HEAD", &c->object.oid, NULL, REF_NODEREF, | |
693 | UPDATE_REFS_DIE_ON_ERR); | |
694 | } else if (remote) { | |
695 | /* | |
696 | * We know remote HEAD points to a non-branch, or | |
697 | * HEAD points to a branch but we don't know which one. | |
698 | * Detach HEAD in all these cases. | |
699 | */ | |
700 | update_ref(msg, "HEAD", &remote->old_oid, NULL, REF_NODEREF, | |
701 | UPDATE_REFS_DIE_ON_ERR); | |
702 | } | |
703 | } | |
704 | ||
705 | static int checkout(int submodule_progress) | |
706 | { | |
707 | struct object_id oid; | |
708 | char *head; | |
709 | struct lock_file *lock_file; | |
710 | struct unpack_trees_options opts; | |
711 | struct tree *tree; | |
712 | struct tree_desc t; | |
713 | int err = 0; | |
714 | ||
715 | if (option_no_checkout) | |
716 | return 0; | |
717 | ||
718 | head = resolve_refdup("HEAD", RESOLVE_REF_READING, oid.hash, NULL); | |
719 | if (!head) { | |
720 | warning(_("remote HEAD refers to nonexistent ref, " | |
721 | "unable to checkout.\n")); | |
722 | return 0; | |
723 | } | |
724 | if (!strcmp(head, "HEAD")) { | |
725 | if (advice_detached_head) | |
726 | detach_advice(oid_to_hex(&oid)); | |
727 | } else { | |
728 | if (!starts_with(head, "refs/heads/")) | |
729 | die(_("HEAD not found below refs/heads!")); | |
730 | } | |
731 | free(head); | |
732 | ||
733 | /* We need to be in the new work tree for the checkout */ | |
734 | setup_work_tree(); | |
735 | ||
736 | lock_file = xcalloc(1, sizeof(struct lock_file)); | |
737 | hold_locked_index(lock_file, LOCK_DIE_ON_ERROR); | |
738 | ||
739 | memset(&opts, 0, sizeof opts); | |
740 | opts.update = 1; | |
741 | opts.merge = 1; | |
742 | opts.fn = oneway_merge; | |
743 | opts.verbose_update = (option_verbosity >= 0); | |
744 | opts.src_index = &the_index; | |
745 | opts.dst_index = &the_index; | |
746 | ||
747 | tree = parse_tree_indirect(&oid); | |
748 | parse_tree(tree); | |
749 | init_tree_desc(&t, tree->buffer, tree->size); | |
750 | if (unpack_trees(1, &t, &opts) < 0) | |
751 | die(_("unable to checkout working tree")); | |
752 | ||
753 | if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) | |
754 | die(_("unable to write new index file")); | |
755 | ||
756 | err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1), | |
757 | oid_to_hex(&oid), "1", NULL); | |
758 | ||
759 | if (!err && (option_recurse_submodules.nr > 0)) { | |
760 | struct argv_array args = ARGV_ARRAY_INIT; | |
761 | argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL); | |
762 | ||
763 | if (option_shallow_submodules == 1) | |
764 | argv_array_push(&args, "--depth=1"); | |
765 | ||
766 | if (max_jobs != -1) | |
767 | argv_array_pushf(&args, "--jobs=%d", max_jobs); | |
768 | ||
769 | if (submodule_progress) | |
770 | argv_array_push(&args, "--progress"); | |
771 | ||
772 | if (option_verbosity < 0) | |
773 | argv_array_push(&args, "--quiet"); | |
774 | ||
775 | err = run_command_v_opt(args.argv, RUN_GIT_CMD); | |
776 | argv_array_clear(&args); | |
777 | } | |
778 | ||
779 | return err; | |
780 | } | |
781 | ||
782 | static int write_one_config(const char *key, const char *value, void *data) | |
783 | { | |
784 | return git_config_set_multivar_gently(key, | |
785 | value ? value : "true", | |
786 | CONFIG_REGEX_NONE, 0); | |
787 | } | |
788 | ||
789 | static void write_config(struct string_list *config) | |
790 | { | |
791 | int i; | |
792 | ||
793 | for (i = 0; i < config->nr; i++) { | |
794 | if (git_config_parse_parameter(config->items[i].string, | |
795 | write_one_config, NULL) < 0) | |
796 | die(_("unable to write parameters to config file")); | |
797 | } | |
798 | } | |
799 | ||
800 | static void write_refspec_config(const char *src_ref_prefix, | |
801 | const struct ref *our_head_points_at, | |
802 | const struct ref *remote_head_points_at, | |
803 | struct strbuf *branch_top) | |
804 | { | |
805 | struct strbuf key = STRBUF_INIT; | |
806 | struct strbuf value = STRBUF_INIT; | |
807 | ||
808 | if (option_mirror || !option_bare) { | |
809 | if (option_single_branch && !option_mirror) { | |
810 | if (option_branch) { | |
811 | if (starts_with(our_head_points_at->name, "refs/tags/")) | |
812 | strbuf_addf(&value, "+%s:%s", our_head_points_at->name, | |
813 | our_head_points_at->name); | |
814 | else | |
815 | strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, | |
816 | branch_top->buf, option_branch); | |
817 | } else if (remote_head_points_at) { | |
818 | const char *head = remote_head_points_at->name; | |
819 | if (!skip_prefix(head, "refs/heads/", &head)) | |
820 | die("BUG: remote HEAD points at non-head?"); | |
821 | ||
822 | strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, | |
823 | branch_top->buf, head); | |
824 | } | |
825 | /* | |
826 | * otherwise, the next "git fetch" will | |
827 | * simply fetch from HEAD without updating | |
828 | * any remote-tracking branch, which is what | |
829 | * we want. | |
830 | */ | |
831 | } else { | |
832 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf); | |
833 | } | |
834 | /* Configure the remote */ | |
835 | if (value.len) { | |
836 | strbuf_addf(&key, "remote.%s.fetch", option_origin); | |
837 | git_config_set_multivar(key.buf, value.buf, "^$", 0); | |
838 | strbuf_reset(&key); | |
839 | ||
840 | if (option_mirror) { | |
841 | strbuf_addf(&key, "remote.%s.mirror", option_origin); | |
842 | git_config_set(key.buf, "true"); | |
843 | strbuf_reset(&key); | |
844 | } | |
845 | } | |
846 | } | |
847 | ||
848 | strbuf_release(&key); | |
849 | strbuf_release(&value); | |
850 | } | |
851 | ||
852 | static void dissociate_from_references(void) | |
853 | { | |
854 | static const char* argv[] = { "repack", "-a", "-d", NULL }; | |
855 | char *alternates = git_pathdup("objects/info/alternates"); | |
856 | ||
857 | if (!access(alternates, F_OK)) { | |
858 | if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) | |
859 | die(_("cannot repack to clean up")); | |
860 | if (unlink(alternates) && errno != ENOENT) | |
861 | die_errno(_("cannot unlink temporary alternates file")); | |
862 | } | |
863 | free(alternates); | |
864 | } | |
865 | ||
866 | int cmd_clone(int argc, const char **argv, const char *prefix) | |
867 | { | |
868 | int is_bundle = 0, is_local; | |
869 | struct stat buf; | |
870 | const char *repo_name, *repo, *work_tree, *git_dir; | |
871 | char *path, *dir; | |
872 | int dest_exists; | |
873 | const struct ref *refs, *remote_head; | |
874 | const struct ref *remote_head_points_at; | |
875 | const struct ref *our_head_points_at; | |
876 | struct ref *mapped_refs; | |
877 | const struct ref *ref; | |
878 | struct strbuf key = STRBUF_INIT, value = STRBUF_INIT; | |
879 | struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; | |
880 | struct transport *transport = NULL; | |
881 | const char *src_ref_prefix = "refs/heads/"; | |
882 | struct remote *remote; | |
883 | int err = 0, complete_refs_before_fetch = 1; | |
884 | int submodule_progress; | |
885 | ||
886 | struct refspec *refspec; | |
887 | const char *fetch_pattern; | |
888 | ||
889 | packet_trace_identity("clone"); | |
890 | argc = parse_options(argc, argv, prefix, builtin_clone_options, | |
891 | builtin_clone_usage, 0); | |
892 | ||
893 | if (argc > 2) | |
894 | usage_msg_opt(_("Too many arguments."), | |
895 | builtin_clone_usage, builtin_clone_options); | |
896 | ||
897 | if (argc == 0) | |
898 | usage_msg_opt(_("You must specify a repository to clone."), | |
899 | builtin_clone_usage, builtin_clone_options); | |
900 | ||
901 | if (option_depth || option_since || option_not.nr) | |
902 | deepen = 1; | |
903 | if (option_single_branch == -1) | |
904 | option_single_branch = deepen ? 1 : 0; | |
905 | ||
906 | if (option_mirror) | |
907 | option_bare = 1; | |
908 | ||
909 | if (option_bare) { | |
910 | if (option_origin) | |
911 | die(_("--bare and --origin %s options are incompatible."), | |
912 | option_origin); | |
913 | if (real_git_dir) | |
914 | die(_("--bare and --separate-git-dir are incompatible.")); | |
915 | option_no_checkout = 1; | |
916 | } | |
917 | ||
918 | if (!option_origin) | |
919 | option_origin = "origin"; | |
920 | ||
921 | repo_name = argv[0]; | |
922 | ||
923 | path = get_repo_path(repo_name, &is_bundle); | |
924 | if (path) | |
925 | repo = absolute_pathdup(repo_name); | |
926 | else if (!strchr(repo_name, ':')) | |
927 | die(_("repository '%s' does not exist"), repo_name); | |
928 | else | |
929 | repo = repo_name; | |
930 | ||
931 | /* no need to be strict, transport_set_option() will validate it again */ | |
932 | if (option_depth && atoi(option_depth) < 1) | |
933 | die(_("depth %s is not a positive number"), option_depth); | |
934 | ||
935 | if (argc == 2) | |
936 | dir = xstrdup(argv[1]); | |
937 | else | |
938 | dir = guess_dir_name(repo_name, is_bundle, option_bare); | |
939 | strip_trailing_slashes(dir); | |
940 | ||
941 | dest_exists = !stat(dir, &buf); | |
942 | if (dest_exists && !is_empty_dir(dir)) | |
943 | die(_("destination path '%s' already exists and is not " | |
944 | "an empty directory."), dir); | |
945 | ||
946 | strbuf_addf(&reflog_msg, "clone: from %s", repo); | |
947 | ||
948 | if (option_bare) | |
949 | work_tree = NULL; | |
950 | else { | |
951 | work_tree = getenv("GIT_WORK_TREE"); | |
952 | if (work_tree && !stat(work_tree, &buf)) | |
953 | die(_("working tree '%s' already exists."), work_tree); | |
954 | } | |
955 | ||
956 | if (option_bare || work_tree) | |
957 | git_dir = xstrdup(dir); | |
958 | else { | |
959 | work_tree = dir; | |
960 | git_dir = mkpathdup("%s/.git", dir); | |
961 | } | |
962 | ||
963 | atexit(remove_junk); | |
964 | sigchain_push_common(remove_junk_on_signal); | |
965 | ||
966 | if (!option_bare) { | |
967 | if (safe_create_leading_directories_const(work_tree) < 0) | |
968 | die_errno(_("could not create leading directories of '%s'"), | |
969 | work_tree); | |
970 | if (!dest_exists && mkdir(work_tree, 0777)) | |
971 | die_errno(_("could not create work tree dir '%s'"), | |
972 | work_tree); | |
973 | junk_work_tree = work_tree; | |
974 | set_git_work_tree(work_tree); | |
975 | } | |
976 | ||
977 | junk_git_dir = real_git_dir ? real_git_dir : git_dir; | |
978 | if (safe_create_leading_directories_const(git_dir) < 0) | |
979 | die(_("could not create leading directories of '%s'"), git_dir); | |
980 | ||
981 | if (0 <= option_verbosity) { | |
982 | if (option_bare) | |
983 | fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); | |
984 | else | |
985 | fprintf(stderr, _("Cloning into '%s'...\n"), dir); | |
986 | } | |
987 | ||
988 | if (option_recurse_submodules.nr > 0) { | |
989 | struct string_list_item *item; | |
990 | struct strbuf sb = STRBUF_INIT; | |
991 | ||
992 | /* remove duplicates */ | |
993 | string_list_sort(&option_recurse_submodules); | |
994 | string_list_remove_duplicates(&option_recurse_submodules, 0); | |
995 | ||
996 | /* | |
997 | * NEEDSWORK: In a multi-working-tree world, this needs to be | |
998 | * set in the per-worktree config. | |
999 | */ | |
1000 | for_each_string_list_item(item, &option_recurse_submodules) { | |
1001 | strbuf_addf(&sb, "submodule.active=%s", | |
1002 | item->string); | |
1003 | string_list_append(&option_config, | |
1004 | strbuf_detach(&sb, NULL)); | |
1005 | } | |
1006 | ||
1007 | if (option_required_reference.nr && | |
1008 | option_optional_reference.nr) | |
1009 | die(_("clone --recursive is not compatible with " | |
1010 | "both --reference and --reference-if-able")); | |
1011 | else if (option_required_reference.nr) { | |
1012 | string_list_append(&option_config, | |
1013 | "submodule.alternateLocation=superproject"); | |
1014 | string_list_append(&option_config, | |
1015 | "submodule.alternateErrorStrategy=die"); | |
1016 | } else if (option_optional_reference.nr) { | |
1017 | string_list_append(&option_config, | |
1018 | "submodule.alternateLocation=superproject"); | |
1019 | string_list_append(&option_config, | |
1020 | "submodule.alternateErrorStrategy=info"); | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | init_db(git_dir, real_git_dir, option_template, INIT_DB_QUIET); | |
1025 | ||
1026 | if (real_git_dir) | |
1027 | git_dir = real_git_dir; | |
1028 | ||
1029 | write_config(&option_config); | |
1030 | ||
1031 | git_config(git_default_config, NULL); | |
1032 | ||
1033 | if (option_bare) { | |
1034 | if (option_mirror) | |
1035 | src_ref_prefix = "refs/"; | |
1036 | strbuf_addstr(&branch_top, src_ref_prefix); | |
1037 | ||
1038 | git_config_set("core.bare", "true"); | |
1039 | } else { | |
1040 | strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin); | |
1041 | } | |
1042 | ||
1043 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf); | |
1044 | strbuf_addf(&key, "remote.%s.url", option_origin); | |
1045 | git_config_set(key.buf, repo); | |
1046 | strbuf_reset(&key); | |
1047 | ||
1048 | if (option_no_tags) { | |
1049 | strbuf_addf(&key, "remote.%s.tagOpt", option_origin); | |
1050 | git_config_set(key.buf, "--no-tags"); | |
1051 | strbuf_reset(&key); | |
1052 | } | |
1053 | ||
1054 | if (option_required_reference.nr || option_optional_reference.nr) | |
1055 | setup_reference(); | |
1056 | ||
1057 | fetch_pattern = value.buf; | |
1058 | refspec = parse_fetch_refspec(1, &fetch_pattern); | |
1059 | ||
1060 | strbuf_reset(&value); | |
1061 | ||
1062 | remote = remote_get(option_origin); | |
1063 | transport = transport_get(remote, remote->url[0]); | |
1064 | transport_set_verbosity(transport, option_verbosity, option_progress); | |
1065 | transport->family = family; | |
1066 | ||
1067 | path = get_repo_path(remote->url[0], &is_bundle); | |
1068 | is_local = option_local != 0 && path && !is_bundle; | |
1069 | if (is_local) { | |
1070 | if (option_depth) | |
1071 | warning(_("--depth is ignored in local clones; use file:// instead.")); | |
1072 | if (option_since) | |
1073 | warning(_("--shallow-since is ignored in local clones; use file:// instead.")); | |
1074 | if (option_not.nr) | |
1075 | warning(_("--shallow-exclude is ignored in local clones; use file:// instead.")); | |
1076 | if (!access(mkpath("%s/shallow", path), F_OK)) { | |
1077 | if (option_local > 0) | |
1078 | warning(_("source repository is shallow, ignoring --local")); | |
1079 | is_local = 0; | |
1080 | } | |
1081 | } | |
1082 | if (option_local > 0 && !is_local) | |
1083 | warning(_("--local is ignored")); | |
1084 | transport->cloning = 1; | |
1085 | ||
1086 | if (!transport->get_refs_list || (!is_local && !transport->fetch)) | |
1087 | die(_("Don't know how to clone %s"), transport->url); | |
1088 | ||
1089 | transport_set_option(transport, TRANS_OPT_KEEP, "yes"); | |
1090 | ||
1091 | if (option_depth) | |
1092 | transport_set_option(transport, TRANS_OPT_DEPTH, | |
1093 | option_depth); | |
1094 | if (option_since) | |
1095 | transport_set_option(transport, TRANS_OPT_DEEPEN_SINCE, | |
1096 | option_since); | |
1097 | if (option_not.nr) | |
1098 | transport_set_option(transport, TRANS_OPT_DEEPEN_NOT, | |
1099 | (const char *)&option_not); | |
1100 | if (option_single_branch) | |
1101 | transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); | |
1102 | ||
1103 | if (option_upload_pack) | |
1104 | transport_set_option(transport, TRANS_OPT_UPLOADPACK, | |
1105 | option_upload_pack); | |
1106 | ||
1107 | if (transport->smart_options && !deepen) | |
1108 | transport->smart_options->check_self_contained_and_connected = 1; | |
1109 | ||
1110 | refs = transport_get_remote_refs(transport); | |
1111 | ||
1112 | if (refs) { | |
1113 | mapped_refs = wanted_peer_refs(refs, refspec); | |
1114 | /* | |
1115 | * transport_get_remote_refs() may return refs with null sha-1 | |
1116 | * in mapped_refs (see struct transport->get_refs_list | |
1117 | * comment). In that case we need fetch it early because | |
1118 | * remote_head code below relies on it. | |
1119 | * | |
1120 | * for normal clones, transport_get_remote_refs() should | |
1121 | * return reliable ref set, we can delay cloning until after | |
1122 | * remote HEAD check. | |
1123 | */ | |
1124 | for (ref = refs; ref; ref = ref->next) | |
1125 | if (is_null_oid(&ref->old_oid)) { | |
1126 | complete_refs_before_fetch = 0; | |
1127 | break; | |
1128 | } | |
1129 | ||
1130 | if (!is_local && !complete_refs_before_fetch) | |
1131 | transport_fetch_refs(transport, mapped_refs); | |
1132 | ||
1133 | remote_head = find_ref_by_name(refs, "HEAD"); | |
1134 | remote_head_points_at = | |
1135 | guess_remote_head(remote_head, mapped_refs, 0); | |
1136 | ||
1137 | if (option_branch) { | |
1138 | our_head_points_at = | |
1139 | find_remote_branch(mapped_refs, option_branch); | |
1140 | ||
1141 | if (!our_head_points_at) | |
1142 | die(_("Remote branch %s not found in upstream %s"), | |
1143 | option_branch, option_origin); | |
1144 | } | |
1145 | else | |
1146 | our_head_points_at = remote_head_points_at; | |
1147 | } | |
1148 | else { | |
1149 | if (option_branch) | |
1150 | die(_("Remote branch %s not found in upstream %s"), | |
1151 | option_branch, option_origin); | |
1152 | ||
1153 | warning(_("You appear to have cloned an empty repository.")); | |
1154 | mapped_refs = NULL; | |
1155 | our_head_points_at = NULL; | |
1156 | remote_head_points_at = NULL; | |
1157 | remote_head = NULL; | |
1158 | option_no_checkout = 1; | |
1159 | if (!option_bare) | |
1160 | install_branch_config(0, "master", option_origin, | |
1161 | "refs/heads/master"); | |
1162 | } | |
1163 | ||
1164 | write_refspec_config(src_ref_prefix, our_head_points_at, | |
1165 | remote_head_points_at, &branch_top); | |
1166 | ||
1167 | if (is_local) | |
1168 | clone_local(path, git_dir); | |
1169 | else if (refs && complete_refs_before_fetch) | |
1170 | transport_fetch_refs(transport, mapped_refs); | |
1171 | ||
1172 | update_remote_refs(refs, mapped_refs, remote_head_points_at, | |
1173 | branch_top.buf, reflog_msg.buf, transport, !is_local); | |
1174 | ||
1175 | update_head(our_head_points_at, remote_head, reflog_msg.buf); | |
1176 | ||
1177 | /* | |
1178 | * We want to show progress for recursive submodule clones iff | |
1179 | * we did so for the main clone. But only the transport knows | |
1180 | * the final decision for this flag, so we need to rescue the value | |
1181 | * before we free the transport. | |
1182 | */ | |
1183 | submodule_progress = transport->progress; | |
1184 | ||
1185 | transport_unlock_pack(transport); | |
1186 | transport_disconnect(transport); | |
1187 | ||
1188 | if (option_dissociate) { | |
1189 | close_all_packs(); | |
1190 | dissociate_from_references(); | |
1191 | } | |
1192 | ||
1193 | junk_mode = JUNK_LEAVE_REPO; | |
1194 | err = checkout(submodule_progress); | |
1195 | ||
1196 | strbuf_release(&reflog_msg); | |
1197 | strbuf_release(&branch_top); | |
1198 | strbuf_release(&key); | |
1199 | strbuf_release(&value); | |
1200 | junk_mode = JUNK_LEAVE_ALL; | |
1201 | ||
1202 | free(refspec); | |
1203 | return err; | |
1204 | } |