]>
Commit | Line | Data |
---|---|---|
8434c2f1 DB |
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 | ||
c2e86add | 11 | #include "builtin.h" |
697cc8ef | 12 | #include "lockfile.h" |
8434c2f1 DB |
13 | #include "parse-options.h" |
14 | #include "fetch-pack.h" | |
15 | #include "refs.h" | |
16 | #include "tree.h" | |
17 | #include "tree-walk.h" | |
18 | #include "unpack-trees.h" | |
19 | #include "transport.h" | |
20 | #include "strbuf.h" | |
21 | #include "dir.h" | |
4a16d072 | 22 | #include "sigchain.h" |
a9f2c136 | 23 | #include "branch.h" |
8ef51733 | 24 | #include "remote.h" |
dfa7a6c5 | 25 | #include "run-command.h" |
0433ad12 | 26 | #include "connected.h" |
8434c2f1 DB |
27 | |
28 | /* | |
29 | * Overall FIXMEs: | |
30 | * - respect DB_ENVIRONMENT for .git/objects. | |
31 | * | |
32 | * Implementation notes: | |
33 | * - dropping use-separate-remote and no-separate-remote compatibility | |
34 | * | |
35 | */ | |
36 | static const char * const builtin_clone_usage[] = { | |
9c9b4f2f | 37 | N_("git clone [<options>] [--] <repo> [<dir>]"), |
8434c2f1 DB |
38 | NULL |
39 | }; | |
40 | ||
3e6e0edd | 41 | static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1; |
189260b1 | 42 | static int option_local = -1, option_no_hardlinks, option_shared, option_recursive; |
18a74a09 | 43 | static int option_shallow_submodules; |
dbc92b07 | 44 | static char *option_template, *option_depth; |
8434c2f1 | 45 | static char *option_origin = NULL; |
7a4ee28f | 46 | static char *option_branch = NULL; |
b57fb80a | 47 | static const char *real_git_dir; |
8434c2f1 | 48 | static char *option_upload_pack = "git-upload-pack"; |
5bd631b3 | 49 | static int option_verbosity; |
01fdc21f | 50 | static int option_progress = -1; |
c915f11e | 51 | static enum transport_family family; |
2721ce21 | 52 | static struct string_list option_config = STRING_LIST_INIT_NODUP; |
5e40800d | 53 | static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; |
f7415b4d | 54 | static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP; |
fb1d6dab | 55 | static int option_dissociate; |
72290d6a | 56 | static int max_jobs = -1; |
dbc92b07 | 57 | |
8434c2f1 | 58 | static struct option builtin_clone_options[] = { |
5bd631b3 | 59 | OPT__VERBOSITY(&option_verbosity), |
01fdc21f | 60 | OPT_BOOL(0, "progress", &option_progress, |
32b77add | 61 | N_("force progress reporting")), |
d5d09d47 SB |
62 | OPT_BOOL('n', "no-checkout", &option_no_checkout, |
63 | N_("don't create a checkout")), | |
4741edd5 SB |
64 | OPT_BOOL(0, "bare", &option_bare, N_("create a bare repository")), |
65 | OPT_HIDDEN_BOOL(0, "naked", &option_bare, | |
66 | N_("create a bare repository")), | |
d5d09d47 SB |
67 | OPT_BOOL(0, "mirror", &option_mirror, |
68 | N_("create a mirror repository (implies bare)")), | |
189260b1 | 69 | OPT_BOOL('l', "local", &option_local, |
32b77add | 70 | N_("to clone from a local repository")), |
d5d09d47 | 71 | OPT_BOOL(0, "no-hardlinks", &option_no_hardlinks, |
32b77add | 72 | N_("don't use local hardlinks, always copy")), |
d5d09d47 | 73 | OPT_BOOL('s', "shared", &option_shared, |
32b77add | 74 | N_("setup as shared repository")), |
d5d09d47 | 75 | OPT_BOOL(0, "recursive", &option_recursive, |
32b77add | 76 | N_("initialize submodules in the clone")), |
d5d09d47 | 77 | OPT_BOOL(0, "recurse-submodules", &option_recursive, |
32b77add | 78 | N_("initialize submodules in the clone")), |
72290d6a SB |
79 | OPT_INTEGER('j', "jobs", &max_jobs, |
80 | N_("number of submodules cloned in parallel")), | |
32b77add NTND |
81 | OPT_STRING(0, "template", &option_template, N_("template-directory"), |
82 | N_("directory from which templates will be used")), | |
5e40800d | 83 | OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"), |
8ade009c | 84 | N_("reference repository")), |
f7415b4d SB |
85 | OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference, |
86 | N_("repo"), N_("reference repository")), | |
14f8b9b4 JK |
87 | OPT_BOOL(0, "dissociate", &option_dissociate, |
88 | N_("use --reference only while cloning")), | |
32b77add NTND |
89 | OPT_STRING('o', "origin", &option_origin, N_("name"), |
90 | N_("use <name> instead of 'origin' to track upstream")), | |
91 | OPT_STRING('b', "branch", &option_branch, N_("branch"), | |
92 | N_("checkout <branch> instead of the remote's HEAD")), | |
93 | OPT_STRING('u', "upload-pack", &option_upload_pack, N_("path"), | |
94 | N_("path to git-upload-pack on the remote")), | |
95 | OPT_STRING(0, "depth", &option_depth, N_("depth"), | |
96 | N_("create a shallow clone of that depth")), | |
3e6e0edd | 97 | OPT_BOOL(0, "single-branch", &option_single_branch, |
32b77add | 98 | N_("clone only one branch, HEAD or --branch")), |
d22eb044 SB |
99 | OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules, |
100 | N_("any cloned submodules will be shallow")), | |
32b77add NTND |
101 | OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), |
102 | N_("separate git dir from working tree")), | |
103 | OPT_STRING_LIST('c', "config", &option_config, N_("key=value"), | |
104 | N_("set config inside the new repository")), | |
c915f11e EW |
105 | OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), |
106 | TRANSPORT_FAMILY_IPV4), | |
107 | OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), | |
108 | TRANSPORT_FAMILY_IPV6), | |
8434c2f1 DB |
109 | OPT_END() |
110 | }; | |
111 | ||
0ea68e42 | 112 | static const char *get_repo_path_1(struct strbuf *path, int *is_bundle) |
8434c2f1 | 113 | { |
b3256eb8 | 114 | static char *suffix[] = { "/.git", "", ".git/.git", ".git" }; |
8434c2f1 | 115 | static char *bundle_suffix[] = { ".bundle", "" }; |
0ea68e42 | 116 | size_t baselen = path->len; |
8434c2f1 DB |
117 | struct stat st; |
118 | int i; | |
119 | ||
120 | for (i = 0; i < ARRAY_SIZE(suffix); i++) { | |
0ea68e42 JK |
121 | strbuf_setlen(path, baselen); |
122 | strbuf_addstr(path, suffix[i]); | |
123 | if (stat(path->buf, &st)) | |
9b0ebc72 | 124 | continue; |
0ea68e42 | 125 | if (S_ISDIR(st.st_mode) && is_git_directory(path->buf)) { |
8434c2f1 | 126 | *is_bundle = 0; |
0ea68e42 | 127 | return path->buf; |
9b0ebc72 NTND |
128 | } else if (S_ISREG(st.st_mode) && st.st_size > 8) { |
129 | /* Is it a "gitfile"? */ | |
130 | char signature[8]; | |
0ea68e42 JK |
131 | const char *dst; |
132 | int len, fd = open(path->buf, O_RDONLY); | |
9b0ebc72 NTND |
133 | if (fd < 0) |
134 | continue; | |
135 | len = read_in_full(fd, signature, 8); | |
136 | close(fd); | |
137 | if (len != 8 || strncmp(signature, "gitdir: ", 8)) | |
138 | continue; | |
0ea68e42 JK |
139 | dst = read_gitfile(path->buf); |
140 | if (dst) { | |
9b0ebc72 | 141 | *is_bundle = 0; |
0ea68e42 | 142 | return dst; |
9b0ebc72 | 143 | } |
8434c2f1 DB |
144 | } |
145 | } | |
146 | ||
147 | for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { | |
0ea68e42 JK |
148 | strbuf_setlen(path, baselen); |
149 | strbuf_addstr(path, bundle_suffix[i]); | |
150 | if (!stat(path->buf, &st) && S_ISREG(st.st_mode)) { | |
8434c2f1 | 151 | *is_bundle = 1; |
0ea68e42 | 152 | return path->buf; |
8434c2f1 DB |
153 | } |
154 | } | |
155 | ||
156 | return NULL; | |
157 | } | |
158 | ||
0ea68e42 JK |
159 | static char *get_repo_path(const char *repo, int *is_bundle) |
160 | { | |
161 | struct strbuf path = STRBUF_INIT; | |
162 | const char *raw; | |
163 | char *canon; | |
164 | ||
165 | strbuf_addstr(&path, repo); | |
166 | raw = get_repo_path_1(&path, is_bundle); | |
167 | canon = raw ? xstrdup(absolute_path(raw)) : NULL; | |
168 | strbuf_release(&path); | |
169 | return canon; | |
170 | } | |
171 | ||
6612f877 | 172 | static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) |
8434c2f1 | 173 | { |
e8959867 | 174 | const char *end = repo + strlen(repo), *start, *ptr; |
7e837c64 | 175 | size_t len; |
8a94bc7b | 176 | char *dir; |
b8c5db35 | 177 | |
e8959867 PS |
178 | /* |
179 | * Skip scheme. | |
180 | */ | |
181 | start = strstr(repo, "://"); | |
182 | if (start == NULL) | |
183 | start = repo; | |
184 | else | |
185 | start += 3; | |
186 | ||
187 | /* | |
188 | * Skip authentication data. The stripping does happen | |
189 | * greedily, such that we strip up to the last '@' inside | |
190 | * the host part. | |
191 | */ | |
192 | for (ptr = start; ptr < end && !is_dir_sep(*ptr); ptr++) { | |
193 | if (*ptr == '@') | |
194 | start = ptr + 1; | |
195 | } | |
196 | ||
b8c5db35 | 197 | /* |
8a94bc7b | 198 | * Strip trailing spaces, slashes and /.git |
b8c5db35 | 199 | */ |
e8959867 | 200 | while (start < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) |
b8c5db35 | 201 | end--; |
e8959867 | 202 | if (end - start > 5 && is_dir_sep(end[-5]) && |
b8c5db35 JS |
203 | !strncmp(end - 4, ".git", 4)) { |
204 | end -= 5; | |
e8959867 | 205 | while (start < end && is_dir_sep(end[-1])) |
b8c5db35 JS |
206 | end--; |
207 | } | |
208 | ||
209 | /* | |
92722efe PS |
210 | * Strip trailing port number if we've got only a |
211 | * hostname (that is, there is no dir separator but a | |
212 | * colon). This check is required such that we do not | |
213 | * strip URI's like '/foo/bar:2222.git', which should | |
214 | * result in a dir '2222' being guessed due to backwards | |
215 | * compatibility. | |
216 | */ | |
217 | if (memchr(start, '/', end - start) == NULL | |
218 | && memchr(start, ':', end - start) != NULL) { | |
219 | ptr = end; | |
220 | while (start < ptr && isdigit(ptr[-1]) && ptr[-1] != ':') | |
221 | ptr--; | |
222 | if (start < ptr && ptr[-1] == ':') | |
223 | end = ptr - 1; | |
224 | } | |
225 | ||
b8c5db35 | 226 | /* |
e8959867 PS |
227 | * Find last component. To remain backwards compatible we |
228 | * also regard colons as path separators, such that | |
229 | * cloning a repository 'foo:bar.git' would result in a | |
230 | * directory 'bar' being guessed. | |
b8c5db35 | 231 | */ |
e8959867 PS |
232 | ptr = end; |
233 | while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') | |
234 | ptr--; | |
235 | start = ptr; | |
b8c5db35 JS |
236 | |
237 | /* | |
238 | * Strip .{bundle,git}. | |
239 | */ | |
db2e2204 JK |
240 | len = end - start; |
241 | strip_suffix_mem(start, &len, is_bundle ? ".bundle" : ".git"); | |
8434c2f1 | 242 | |
adef9561 | 243 | if (!len || (len == 1 && *start == '/')) |
39ad4f39 NTND |
244 | die(_("No directory name could be guessed.\n" |
245 | "Please specify a directory on the command line")); | |
adef9561 | 246 | |
7e837c64 SS |
247 | if (is_bare) |
248 | dir = xstrfmt("%.*s.git", (int)len, start); | |
249 | else | |
250 | dir = xstrndup(start, len); | |
8a94bc7b AR |
251 | /* |
252 | * Replace sequences of 'control' characters and whitespace | |
253 | * with one ascii space, remove leading and trailing spaces. | |
254 | */ | |
255 | if (*dir) { | |
256 | char *out = dir; | |
257 | int prev_space = 1 /* strip leading whitespace */; | |
258 | for (end = dir; *end; ++end) { | |
259 | char ch = *end; | |
260 | if ((unsigned char)ch < '\x20') | |
261 | ch = '\x20'; | |
262 | if (isspace(ch)) { | |
263 | if (prev_space) | |
264 | continue; | |
265 | prev_space = 1; | |
266 | } else | |
267 | prev_space = 0; | |
268 | *out++ = ch; | |
269 | } | |
270 | *out = '\0'; | |
271 | if (out > dir && prev_space) | |
272 | out[-1] = '\0'; | |
6612f877 | 273 | } |
8a94bc7b | 274 | return dir; |
8434c2f1 DB |
275 | } |
276 | ||
44a68fd5 CB |
277 | static void strip_trailing_slashes(char *dir) |
278 | { | |
279 | char *end = dir + strlen(dir); | |
280 | ||
281 | while (dir < end - 1 && is_dir_sep(end[-1])) | |
282 | end--; | |
283 | *end = '\0'; | |
284 | } | |
285 | ||
dbc92b07 | 286 | static int add_one_reference(struct string_list_item *item, void *cb_data) |
8434c2f1 | 287 | { |
9eeea7d2 | 288 | struct strbuf err = STRBUF_INIT; |
f7415b4d | 289 | int *required = cb_data; |
9eeea7d2 | 290 | char *ref_git = compute_alternate_path(item->string, &err); |
8434c2f1 | 291 | |
f7415b4d SB |
292 | if (!ref_git) { |
293 | if (*required) | |
294 | die("%s", err.buf); | |
295 | else | |
296 | fprintf(stderr, | |
297 | _("info: Could not add alternate for '%s': %s\n"), | |
298 | item->string, err.buf); | |
299 | } else { | |
300 | struct strbuf sb = STRBUF_INIT; | |
301 | strbuf_addf(&sb, "%s/objects", ref_git); | |
302 | add_to_alternates_file(sb.buf); | |
303 | strbuf_release(&sb); | |
304 | } | |
606e435a | 305 | |
9eeea7d2 | 306 | strbuf_release(&err); |
f7415b4d | 307 | free(ref_git); |
dbc92b07 JH |
308 | return 0; |
309 | } | |
8434c2f1 | 310 | |
dbc92b07 JH |
311 | static void setup_reference(void) |
312 | { | |
f7415b4d SB |
313 | int required = 1; |
314 | for_each_string_list(&option_required_reference, | |
315 | add_one_reference, &required); | |
316 | required = 0; | |
317 | for_each_string_list(&option_optional_reference, | |
318 | add_one_reference, &required); | |
8434c2f1 DB |
319 | } |
320 | ||
e6baf4a1 JH |
321 | static void copy_alternates(struct strbuf *src, struct strbuf *dst, |
322 | const char *src_repo) | |
323 | { | |
324 | /* | |
325 | * Read from the source objects/info/alternates file | |
326 | * and copy the entries to corresponding file in the | |
327 | * destination repository with add_to_alternates_file(). | |
328 | * Both src and dst have "$path/objects/info/alternates". | |
329 | * | |
330 | * Instead of copying bit-for-bit from the original, | |
331 | * we need to append to existing one so that the already | |
332 | * created entry via "clone -s" is not lost, and also | |
333 | * to turn entries with paths relative to the original | |
334 | * absolute, so that they can be used in the new repository. | |
335 | */ | |
336 | FILE *in = fopen(src->buf, "r"); | |
337 | struct strbuf line = STRBUF_INIT; | |
338 | ||
3f163962 | 339 | while (strbuf_getline(&line, in) != EOF) { |
dcf69262 | 340 | char *abs_path; |
e6baf4a1 JH |
341 | if (!line.len || line.buf[0] == '#') |
342 | continue; | |
343 | if (is_absolute_path(line.buf)) { | |
344 | add_to_alternates_file(line.buf); | |
345 | continue; | |
346 | } | |
dcf69262 NTND |
347 | abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf); |
348 | normalize_path_copy(abs_path, abs_path); | |
349 | add_to_alternates_file(abs_path); | |
350 | free(abs_path); | |
e6baf4a1 JH |
351 | } |
352 | strbuf_release(&line); | |
353 | fclose(in); | |
354 | } | |
355 | ||
356 | static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, | |
357 | const char *src_repo, int src_baselen) | |
8434c2f1 DB |
358 | { |
359 | struct dirent *de; | |
360 | struct stat buf; | |
361 | int src_len, dest_len; | |
362 | DIR *dir; | |
363 | ||
b9e125e0 | 364 | dir = opendir(src->buf); |
8434c2f1 | 365 | if (!dir) |
e84d7b74 | 366 | die_errno(_("failed to open '%s'"), src->buf); |
8434c2f1 | 367 | |
b9e125e0 | 368 | if (mkdir(dest->buf, 0777)) { |
8434c2f1 | 369 | if (errno != EEXIST) |
e84d7b74 | 370 | die_errno(_("failed to create directory '%s'"), dest->buf); |
b9e125e0 | 371 | else if (stat(dest->buf, &buf)) |
e84d7b74 | 372 | die_errno(_("failed to stat '%s'"), dest->buf); |
8434c2f1 | 373 | else if (!S_ISDIR(buf.st_mode)) |
e84d7b74 | 374 | die(_("%s exists and is not a directory"), dest->buf); |
8434c2f1 DB |
375 | } |
376 | ||
b9e125e0 MV |
377 | strbuf_addch(src, '/'); |
378 | src_len = src->len; | |
379 | strbuf_addch(dest, '/'); | |
380 | dest_len = dest->len; | |
8434c2f1 DB |
381 | |
382 | while ((de = readdir(dir)) != NULL) { | |
b9e125e0 MV |
383 | strbuf_setlen(src, src_len); |
384 | strbuf_addstr(src, de->d_name); | |
385 | strbuf_setlen(dest, dest_len); | |
386 | strbuf_addstr(dest, de->d_name); | |
387 | if (stat(src->buf, &buf)) { | |
e84d7b74 | 388 | warning (_("failed to stat %s\n"), src->buf); |
8434c2f1 DB |
389 | continue; |
390 | } | |
391 | if (S_ISDIR(buf.st_mode)) { | |
392 | if (de->d_name[0] != '.') | |
e6baf4a1 JH |
393 | copy_or_link_directory(src, dest, |
394 | src_repo, src_baselen); | |
395 | continue; | |
396 | } | |
397 | ||
398 | /* Files that cannot be copied bit-for-bit... */ | |
399 | if (!strcmp(src->buf + src_baselen, "/info/alternates")) { | |
400 | copy_alternates(src, dest, src_repo); | |
8434c2f1 DB |
401 | continue; |
402 | } | |
403 | ||
b9e125e0 | 404 | if (unlink(dest->buf) && errno != ENOENT) |
e84d7b74 | 405 | die_errno(_("failed to unlink '%s'"), dest->buf); |
fdabc242 | 406 | if (!option_no_hardlinks) { |
b9e125e0 | 407 | if (!link(src->buf, dest->buf)) |
fdabc242 | 408 | continue; |
189260b1 | 409 | if (option_local > 0) |
e84d7b74 | 410 | die_errno(_("failed to create link '%s'"), dest->buf); |
fdabc242 | 411 | option_no_hardlinks = 1; |
8434c2f1 | 412 | } |
f7835a25 | 413 | if (copy_file_with_time(dest->buf, src->buf, 0666)) |
e84d7b74 | 414 | die_errno(_("failed to copy file to '%s'"), dest->buf); |
8434c2f1 | 415 | } |
689ef4d4 | 416 | closedir(dir); |
8434c2f1 DB |
417 | } |
418 | ||
6f48d39f | 419 | static void clone_local(const char *src_repo, const char *dest_repo) |
8434c2f1 | 420 | { |
e6baf4a1 JH |
421 | if (option_shared) { |
422 | struct strbuf alt = STRBUF_INIT; | |
423 | strbuf_addf(&alt, "%s/objects", src_repo); | |
424 | add_to_alternates_file(alt.buf); | |
425 | strbuf_release(&alt); | |
426 | } else { | |
427 | struct strbuf src = STRBUF_INIT; | |
428 | struct strbuf dest = STRBUF_INIT; | |
744e4697 NTND |
429 | get_common_dir(&src, src_repo); |
430 | get_common_dir(&dest, dest_repo); | |
431 | strbuf_addstr(&src, "/objects"); | |
432 | strbuf_addstr(&dest, "/objects"); | |
e6baf4a1 | 433 | copy_or_link_directory(&src, &dest, src_repo, src.len); |
b9e125e0 MV |
434 | strbuf_release(&src); |
435 | strbuf_release(&dest); | |
8434c2f1 DB |
436 | } |
437 | ||
28ba96ab | 438 | if (0 <= option_verbosity) |
68b939b2 | 439 | fprintf(stderr, _("done.\n")); |
8434c2f1 DB |
440 | } |
441 | ||
442 | static const char *junk_work_tree; | |
443 | static const char *junk_git_dir; | |
85064630 | 444 | static enum { |
d3b34622 JK |
445 | JUNK_LEAVE_NONE, |
446 | JUNK_LEAVE_REPO, | |
447 | JUNK_LEAVE_ALL | |
448 | } junk_mode = JUNK_LEAVE_NONE; | |
449 | ||
450 | static const char junk_leave_repo_msg[] = | |
451 | N_("Clone succeeded, but checkout failed.\n" | |
452 | "You can inspect what was checked out with 'git status'\n" | |
453 | "and retry the checkout with 'git checkout -f HEAD'\n"); | |
8434c2f1 DB |
454 | |
455 | static void remove_junk(void) | |
456 | { | |
f285a2d7 | 457 | struct strbuf sb = STRBUF_INIT; |
d3b34622 JK |
458 | |
459 | switch (junk_mode) { | |
460 | case JUNK_LEAVE_REPO: | |
461 | warning("%s", _(junk_leave_repo_msg)); | |
462 | /* fall-through */ | |
463 | case JUNK_LEAVE_ALL: | |
464 | return; | |
465 | default: | |
466 | /* proceed to removal */ | |
467 | break; | |
468 | } | |
469 | ||
8434c2f1 DB |
470 | if (junk_git_dir) { |
471 | strbuf_addstr(&sb, junk_git_dir); | |
472 | remove_dir_recursively(&sb, 0); | |
473 | strbuf_reset(&sb); | |
474 | } | |
475 | if (junk_work_tree) { | |
476 | strbuf_addstr(&sb, junk_work_tree); | |
477 | remove_dir_recursively(&sb, 0); | |
478 | strbuf_reset(&sb); | |
479 | } | |
480 | } | |
481 | ||
482 | static void remove_junk_on_signal(int signo) | |
483 | { | |
484 | remove_junk(); | |
4a16d072 | 485 | sigchain_pop(signo); |
8434c2f1 DB |
486 | raise(signo); |
487 | } | |
488 | ||
9e585046 NTND |
489 | static struct ref *find_remote_branch(const struct ref *refs, const char *branch) |
490 | { | |
491 | struct ref *ref; | |
492 | struct strbuf head = STRBUF_INIT; | |
493 | strbuf_addstr(&head, "refs/heads/"); | |
494 | strbuf_addstr(&head, branch); | |
495 | ref = find_ref_by_name(refs, head.buf); | |
496 | strbuf_release(&head); | |
5a7d5b68 NTND |
497 | |
498 | if (ref) | |
499 | return ref; | |
500 | ||
501 | strbuf_addstr(&head, "refs/tags/"); | |
502 | strbuf_addstr(&head, branch); | |
503 | ref = find_ref_by_name(refs, head.buf); | |
504 | strbuf_release(&head); | |
505 | ||
9e585046 NTND |
506 | return ref; |
507 | } | |
508 | ||
5bdc32d3 NP |
509 | static struct ref *wanted_peer_refs(const struct ref *refs, |
510 | struct refspec *refspec) | |
8434c2f1 | 511 | { |
c1921c18 JK |
512 | struct ref *head = copy_ref(find_ref_by_name(refs, "HEAD")); |
513 | struct ref *local_refs = head; | |
514 | struct ref **tail = head ? &head->next : &local_refs; | |
8434c2f1 | 515 | |
3e6e0edd NTND |
516 | if (option_single_branch) { |
517 | struct ref *remote_head = NULL; | |
518 | ||
519 | if (!option_branch) | |
520 | remote_head = guess_remote_head(head, refs, 0); | |
0ec4b165 NTND |
521 | else { |
522 | local_refs = NULL; | |
523 | tail = &local_refs; | |
524 | remote_head = copy_ref(find_remote_branch(refs, option_branch)); | |
525 | } | |
3e6e0edd NTND |
526 | |
527 | if (!remote_head && option_branch) | |
528 | warning(_("Could not find remote branch %s to clone."), | |
529 | option_branch); | |
5a7d5b68 | 530 | else { |
3e6e0edd | 531 | get_fetch_map(remote_head, refspec, &tail, 0); |
5a7d5b68 NTND |
532 | |
533 | /* if --branch=tag, pull the requested tag explicitly */ | |
534 | get_fetch_map(remote_head, tag_refspec, &tail, 0); | |
535 | } | |
3e6e0edd NTND |
536 | } else |
537 | get_fetch_map(refs, refspec, &tail, 0); | |
538 | ||
539 | if (!option_mirror && !option_single_branch) | |
468386a9 | 540 | get_fetch_map(refs, tag_refspec, &tail, 0); |
8434c2f1 | 541 | |
5bdc32d3 NP |
542 | return local_refs; |
543 | } | |
544 | ||
545 | static void write_remote_refs(const struct ref *local_refs) | |
546 | { | |
547 | const struct ref *r; | |
548 | ||
58f233ce MH |
549 | struct ref_transaction *t; |
550 | struct strbuf err = STRBUF_INIT; | |
551 | ||
552 | t = ref_transaction_begin(&err); | |
553 | if (!t) | |
554 | die("%s", err.buf); | |
9f69d297 | 555 | |
c1921c18 JK |
556 | for (r = local_refs; r; r = r->next) { |
557 | if (!r->peer_ref) | |
558 | continue; | |
f4e54d02 | 559 | if (ref_transaction_create(t, r->peer_ref->name, r->old_oid.hash, |
58f233ce MH |
560 | 0, NULL, &err)) |
561 | die("%s", err.buf); | |
c1921c18 | 562 | } |
3e8aded2 | 563 | |
58f233ce MH |
564 | if (initial_ref_transaction_commit(t, &err)) |
565 | die("%s", err.buf); | |
566 | ||
567 | strbuf_release(&err); | |
568 | ref_transaction_free(t); | |
8434c2f1 DB |
569 | } |
570 | ||
3e6e0edd NTND |
571 | static void write_followtags(const struct ref *refs, const char *msg) |
572 | { | |
573 | const struct ref *ref; | |
574 | for (ref = refs; ref; ref = ref->next) { | |
59556548 | 575 | if (!starts_with(ref->name, "refs/tags/")) |
3e6e0edd | 576 | continue; |
59556548 | 577 | if (ends_with(ref->name, "^{}")) |
3e6e0edd | 578 | continue; |
f4e54d02 | 579 | if (!has_object_file(&ref->old_oid)) |
3e6e0edd | 580 | continue; |
f4e54d02 | 581 | update_ref(msg, ref->name, ref->old_oid.hash, |
f4124112 | 582 | NULL, 0, UPDATE_REFS_DIE_ON_ERR); |
3e6e0edd NTND |
583 | } |
584 | } | |
585 | ||
0433ad12 JK |
586 | static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) |
587 | { | |
588 | struct ref **rm = cb_data; | |
589 | struct ref *ref = *rm; | |
590 | ||
591 | /* | |
592 | * Skip anything missing a peer_ref, which we are not | |
593 | * actually going to write a ref for. | |
594 | */ | |
595 | while (ref && !ref->peer_ref) | |
596 | ref = ref->next; | |
597 | /* Returning -1 notes "end of list" to the caller. */ | |
598 | if (!ref) | |
599 | return -1; | |
600 | ||
f4e54d02 | 601 | hashcpy(sha1, ref->old_oid.hash); |
0433ad12 JK |
602 | *rm = ref->next; |
603 | return 0; | |
604 | } | |
605 | ||
960b7d1c NTND |
606 | static void update_remote_refs(const struct ref *refs, |
607 | const struct ref *mapped_refs, | |
608 | const struct ref *remote_head_points_at, | |
609 | const char *branch_top, | |
c6807a40 | 610 | const char *msg, |
45ed4afa | 611 | struct transport *transport, |
125a05fd | 612 | int check_connectivity) |
960b7d1c | 613 | { |
0433ad12 JK |
614 | const struct ref *rm = mapped_refs; |
615 | ||
125a05fd | 616 | if (check_connectivity) { |
7043c707 JK |
617 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
618 | ||
619 | opt.transport = transport; | |
38e590ea | 620 | opt.progress = transport->progress; |
7043c707 | 621 | |
7043c707 | 622 | if (check_connected(iterate_ref_map, &rm, &opt)) |
125a05fd JK |
623 | die(_("remote did not send all necessary objects")); |
624 | } | |
0433ad12 | 625 | |
960b7d1c | 626 | if (refs) { |
960b7d1c NTND |
627 | write_remote_refs(mapped_refs); |
628 | if (option_single_branch) | |
629 | write_followtags(refs, msg); | |
630 | } | |
631 | ||
632 | if (remote_head_points_at && !option_bare) { | |
633 | struct strbuf head_ref = STRBUF_INIT; | |
634 | strbuf_addstr(&head_ref, branch_top); | |
635 | strbuf_addstr(&head_ref, "HEAD"); | |
4be49d75 JK |
636 | if (create_symref(head_ref.buf, |
637 | remote_head_points_at->peer_ref->name, | |
638 | msg) < 0) | |
39ad4f39 | 639 | die(_("unable to update %s"), head_ref.buf); |
4be49d75 | 640 | strbuf_release(&head_ref); |
960b7d1c NTND |
641 | } |
642 | } | |
643 | ||
f034d354 NTND |
644 | static void update_head(const struct ref *our, const struct ref *remote, |
645 | const char *msg) | |
646 | { | |
cf4fff57 JK |
647 | const char *head; |
648 | if (our && skip_prefix(our->name, "refs/heads/", &head)) { | |
f034d354 | 649 | /* Local default branch link */ |
4be49d75 | 650 | if (create_symref("HEAD", our->name, NULL) < 0) |
39ad4f39 | 651 | die(_("unable to update HEAD")); |
f034d354 | 652 | if (!option_bare) { |
f4e54d02 | 653 | update_ref(msg, "HEAD", our->old_oid.hash, NULL, 0, |
f4124112 | 654 | UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
655 | install_branch_config(0, head, option_origin, our->name); |
656 | } | |
5a7d5b68 | 657 | } else if (our) { |
f4e54d02 | 658 | struct commit *c = lookup_commit_reference(our->old_oid.hash); |
5a7d5b68 | 659 | /* --branch specifies a non-branch (i.e. tags), detach HEAD */ |
ed1c9977 | 660 | update_ref(msg, "HEAD", c->object.oid.hash, |
f4124112 | 661 | NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
662 | } else if (remote) { |
663 | /* | |
664 | * We know remote HEAD points to a non-branch, or | |
920b691f | 665 | * HEAD points to a branch but we don't know which one. |
f034d354 NTND |
666 | * Detach HEAD in all these cases. |
667 | */ | |
f4e54d02 | 668 | update_ref(msg, "HEAD", remote->old_oid.hash, |
f4124112 | 669 | NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
670 | } |
671 | } | |
672 | ||
c39852c1 NTND |
673 | static int checkout(void) |
674 | { | |
675 | unsigned char sha1[20]; | |
676 | char *head; | |
677 | struct lock_file *lock_file; | |
678 | struct unpack_trees_options opts; | |
679 | struct tree *tree; | |
680 | struct tree_desc t; | |
03b86647 | 681 | int err = 0; |
c39852c1 NTND |
682 | |
683 | if (option_no_checkout) | |
684 | return 0; | |
685 | ||
7695d118 | 686 | head = resolve_refdup("HEAD", RESOLVE_REF_READING, sha1, NULL); |
c39852c1 NTND |
687 | if (!head) { |
688 | warning(_("remote HEAD refers to nonexistent ref, " | |
689 | "unable to checkout.\n")); | |
690 | return 0; | |
691 | } | |
2857093b NTND |
692 | if (!strcmp(head, "HEAD")) { |
693 | if (advice_detached_head) | |
694 | detach_advice(sha1_to_hex(sha1)); | |
695 | } else { | |
59556548 | 696 | if (!starts_with(head, "refs/heads/")) |
c39852c1 NTND |
697 | die(_("HEAD not found below refs/heads!")); |
698 | } | |
699 | free(head); | |
700 | ||
701 | /* We need to be in the new work tree for the checkout */ | |
702 | setup_work_tree(); | |
703 | ||
704 | lock_file = xcalloc(1, sizeof(struct lock_file)); | |
03b86647 | 705 | hold_locked_index(lock_file, 1); |
c39852c1 NTND |
706 | |
707 | memset(&opts, 0, sizeof opts); | |
708 | opts.update = 1; | |
709 | opts.merge = 1; | |
710 | opts.fn = oneway_merge; | |
8f63da13 | 711 | opts.verbose_update = (option_verbosity >= 0); |
c39852c1 NTND |
712 | opts.src_index = &the_index; |
713 | opts.dst_index = &the_index; | |
714 | ||
715 | tree = parse_tree_indirect(sha1); | |
716 | parse_tree(tree); | |
717 | init_tree_desc(&t, tree->buffer, tree->size); | |
0aac7bb2 JK |
718 | if (unpack_trees(1, &t, &opts) < 0) |
719 | die(_("unable to checkout working tree")); | |
c39852c1 | 720 | |
03b86647 | 721 | if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) |
c39852c1 NTND |
722 | die(_("unable to write new index file")); |
723 | ||
15048f8a BP |
724 | err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1), |
725 | sha1_to_hex(sha1), "1", NULL); | |
c39852c1 | 726 | |
72290d6a SB |
727 | if (!err && option_recursive) { |
728 | struct argv_array args = ARGV_ARRAY_INIT; | |
729 | argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL); | |
730 | ||
18a74a09 | 731 | if (option_shallow_submodules == 1) |
d22eb044 SB |
732 | argv_array_push(&args, "--depth=1"); |
733 | ||
72290d6a SB |
734 | if (max_jobs != -1) |
735 | argv_array_pushf(&args, "--jobs=%d", max_jobs); | |
736 | ||
737 | err = run_command_v_opt(args.argv, RUN_GIT_CMD); | |
738 | argv_array_clear(&args); | |
739 | } | |
c39852c1 NTND |
740 | |
741 | return err; | |
742 | } | |
743 | ||
84054f79 JK |
744 | static int write_one_config(const char *key, const char *value, void *data) |
745 | { | |
30598ad0 | 746 | return git_config_set_multivar_gently(key, value ? value : "true", "^$", 0); |
84054f79 JK |
747 | } |
748 | ||
749 | static void write_config(struct string_list *config) | |
750 | { | |
751 | int i; | |
752 | ||
753 | for (i = 0; i < config->nr; i++) { | |
754 | if (git_config_parse_parameter(config->items[i].string, | |
755 | write_one_config, NULL) < 0) | |
39ad4f39 | 756 | die(_("unable to write parameters to config file")); |
84054f79 JK |
757 | } |
758 | } | |
759 | ||
24d36f14 DA |
760 | static void write_refspec_config(const char *src_ref_prefix, |
761 | const struct ref *our_head_points_at, | |
762 | const struct ref *remote_head_points_at, | |
763 | struct strbuf *branch_top) | |
31b808a0 RT |
764 | { |
765 | struct strbuf key = STRBUF_INIT; | |
766 | struct strbuf value = STRBUF_INIT; | |
767 | ||
768 | if (option_mirror || !option_bare) { | |
769 | if (option_single_branch && !option_mirror) { | |
770 | if (option_branch) { | |
60a5f5fc | 771 | if (starts_with(our_head_points_at->name, "refs/tags/")) |
31b808a0 RT |
772 | strbuf_addf(&value, "+%s:%s", our_head_points_at->name, |
773 | our_head_points_at->name); | |
774 | else | |
775 | strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, | |
776 | branch_top->buf, option_branch); | |
777 | } else if (remote_head_points_at) { | |
cf4fff57 JK |
778 | const char *head = remote_head_points_at->name; |
779 | if (!skip_prefix(head, "refs/heads/", &head)) | |
780 | die("BUG: remote HEAD points at non-head?"); | |
781 | ||
31b808a0 | 782 | strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, |
cf4fff57 | 783 | branch_top->buf, head); |
31b808a0 RT |
784 | } |
785 | /* | |
786 | * otherwise, the next "git fetch" will | |
787 | * simply fetch from HEAD without updating | |
d6ac1d21 | 788 | * any remote-tracking branch, which is what |
31b808a0 RT |
789 | * we want. |
790 | */ | |
791 | } else { | |
792 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf); | |
793 | } | |
794 | /* Configure the remote */ | |
795 | if (value.len) { | |
796 | strbuf_addf(&key, "remote.%s.fetch", option_origin); | |
797 | git_config_set_multivar(key.buf, value.buf, "^$", 0); | |
798 | strbuf_reset(&key); | |
799 | ||
800 | if (option_mirror) { | |
801 | strbuf_addf(&key, "remote.%s.mirror", option_origin); | |
802 | git_config_set(key.buf, "true"); | |
803 | strbuf_reset(&key); | |
804 | } | |
805 | } | |
806 | } | |
807 | ||
808 | strbuf_release(&key); | |
809 | strbuf_release(&value); | |
810 | } | |
811 | ||
fb1d6dab JH |
812 | static void dissociate_from_references(void) |
813 | { | |
814 | static const char* argv[] = { "repack", "-a", "-d", NULL }; | |
0181681e | 815 | char *alternates = git_pathdup("objects/info/alternates"); |
fb1d6dab | 816 | |
0181681e AR |
817 | if (!access(alternates, F_OK)) { |
818 | if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) | |
819 | die(_("cannot repack to clean up")); | |
820 | if (unlink(alternates) && errno != ENOENT) | |
821 | die_errno(_("cannot unlink temporary alternates file")); | |
822 | } | |
823 | free(alternates); | |
fb1d6dab JH |
824 | } |
825 | ||
8434c2f1 DB |
826 | int cmd_clone(int argc, const char **argv, const char *prefix) |
827 | { | |
24c61c44 | 828 | int is_bundle = 0, is_local; |
8434c2f1 DB |
829 | struct stat buf; |
830 | const char *repo_name, *repo, *work_tree, *git_dir; | |
831 | char *path, *dir; | |
55892d23 | 832 | int dest_exists; |
37148311 | 833 | const struct ref *refs, *remote_head; |
7a4ee28f JK |
834 | const struct ref *remote_head_points_at; |
835 | const struct ref *our_head_points_at; | |
37148311 | 836 | struct ref *mapped_refs; |
90498161 | 837 | const struct ref *ref; |
b5ff37ac MV |
838 | struct strbuf key = STRBUF_INIT, value = STRBUF_INIT; |
839 | struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; | |
1db4a75c | 840 | struct transport *transport = NULL; |
9e585046 | 841 | const char *src_ref_prefix = "refs/heads/"; |
6f48d39f | 842 | struct remote *remote; |
90498161 | 843 | int err = 0, complete_refs_before_fetch = 1; |
8434c2f1 | 844 | |
689f0396 DB |
845 | struct refspec *refspec; |
846 | const char *fetch_pattern; | |
8434c2f1 | 847 | |
bbc30f99 | 848 | packet_trace_identity("clone"); |
37782920 | 849 | argc = parse_options(argc, argv, prefix, builtin_clone_options, |
8434c2f1 DB |
850 | builtin_clone_usage, 0); |
851 | ||
d52dc4b1 | 852 | if (argc > 2) |
e84d7b74 | 853 | usage_msg_opt(_("Too many arguments."), |
d52dc4b1 JN |
854 | builtin_clone_usage, builtin_clone_options); |
855 | ||
8434c2f1 | 856 | if (argc == 0) |
e84d7b74 | 857 | usage_msg_opt(_("You must specify a repository to clone."), |
d52dc4b1 | 858 | builtin_clone_usage, builtin_clone_options); |
8434c2f1 | 859 | |
3e6e0edd NTND |
860 | if (option_single_branch == -1) |
861 | option_single_branch = option_depth ? 1 : 0; | |
862 | ||
bc699afc JS |
863 | if (option_mirror) |
864 | option_bare = 1; | |
865 | ||
8434c2f1 DB |
866 | if (option_bare) { |
867 | if (option_origin) | |
e84d7b74 | 868 | die(_("--bare and --origin %s options are incompatible."), |
8434c2f1 | 869 | option_origin); |
95b63f1e NTND |
870 | if (real_git_dir) |
871 | die(_("--bare and --separate-git-dir are incompatible.")); | |
8434c2f1 | 872 | option_no_checkout = 1; |
8434c2f1 DB |
873 | } |
874 | ||
875 | if (!option_origin) | |
876 | option_origin = "origin"; | |
877 | ||
878 | repo_name = argv[0]; | |
879 | ||
880 | path = get_repo_path(repo_name, &is_bundle); | |
881 | if (path) | |
e2a57aac | 882 | repo = xstrdup(absolute_path(repo_name)); |
8434c2f1 | 883 | else if (!strchr(repo_name, ':')) |
d3e1ddfd | 884 | die(_("repository '%s' does not exist"), repo_name); |
8434c2f1 DB |
885 | else |
886 | repo = repo_name; | |
887 | ||
5594bcad NTND |
888 | /* no need to be strict, transport_set_option() will validate it again */ |
889 | if (option_depth && atoi(option_depth) < 1) | |
890 | die(_("depth %s is not a positive number"), option_depth); | |
891 | ||
8434c2f1 DB |
892 | if (argc == 2) |
893 | dir = xstrdup(argv[1]); | |
894 | else | |
6612f877 | 895 | dir = guess_dir_name(repo_name, is_bundle, option_bare); |
44a68fd5 | 896 | strip_trailing_slashes(dir); |
8434c2f1 | 897 | |
55892d23 AP |
898 | dest_exists = !stat(dir, &buf); |
899 | if (dest_exists && !is_empty_dir(dir)) | |
e84d7b74 ÆAB |
900 | die(_("destination path '%s' already exists and is not " |
901 | "an empty directory."), dir); | |
8434c2f1 | 902 | |
8434c2f1 DB |
903 | strbuf_addf(&reflog_msg, "clone: from %s", repo); |
904 | ||
905 | if (option_bare) | |
906 | work_tree = NULL; | |
907 | else { | |
908 | work_tree = getenv("GIT_WORK_TREE"); | |
909 | if (work_tree && !stat(work_tree, &buf)) | |
e84d7b74 | 910 | die(_("working tree '%s' already exists."), work_tree); |
8434c2f1 DB |
911 | } |
912 | ||
913 | if (option_bare || work_tree) | |
914 | git_dir = xstrdup(dir); | |
915 | else { | |
916 | work_tree = dir; | |
4e2d094d | 917 | git_dir = mkpathdup("%s/.git", dir); |
8434c2f1 DB |
918 | } |
919 | ||
ee0e3872 JK |
920 | atexit(remove_junk); |
921 | sigchain_push_common(remove_junk_on_signal); | |
922 | ||
8434c2f1 | 923 | if (!option_bare) { |
8e21d63b | 924 | if (safe_create_leading_directories_const(work_tree) < 0) |
e84d7b74 | 925 | die_errno(_("could not create leading directories of '%s'"), |
d824cbba | 926 | work_tree); |
45d4fdc2 | 927 | if (!dest_exists && mkdir(work_tree, 0777)) |
16eff6c0 | 928 | die_errno(_("could not create work tree dir '%s'"), |
d824cbba | 929 | work_tree); |
ee0e3872 | 930 | junk_work_tree = work_tree; |
8434c2f1 DB |
931 | set_git_work_tree(work_tree); |
932 | } | |
8434c2f1 | 933 | |
ee0e3872 | 934 | junk_git_dir = git_dir; |
8e21d63b | 935 | if (safe_create_leading_directories_const(git_dir) < 0) |
e84d7b74 | 936 | die(_("could not create leading directories of '%s'"), git_dir); |
b57fb80a NTND |
937 | |
938 | set_git_dir_init(git_dir, real_git_dir, 0); | |
9be1980b | 939 | if (real_git_dir) { |
b57fb80a | 940 | git_dir = real_git_dir; |
9be1980b JL |
941 | junk_git_dir = real_git_dir; |
942 | } | |
8434c2f1 | 943 | |
3781fcce ÆAB |
944 | if (0 <= option_verbosity) { |
945 | if (option_bare) | |
68b939b2 | 946 | fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); |
3781fcce | 947 | else |
68b939b2 | 948 | fprintf(stderr, _("Cloning into '%s'...\n"), dir); |
3781fcce | 949 | } |
28ba96ab | 950 | init_db(option_template, INIT_DB_QUIET); |
84054f79 | 951 | write_config(&option_config); |
8434c2f1 | 952 | |
9bd81e42 | 953 | git_config(git_default_config, NULL); |
8434c2f1 DB |
954 | |
955 | if (option_bare) { | |
bc699afc JS |
956 | if (option_mirror) |
957 | src_ref_prefix = "refs/"; | |
b5ff37ac | 958 | strbuf_addstr(&branch_top, src_ref_prefix); |
8434c2f1 DB |
959 | |
960 | git_config_set("core.bare", "true"); | |
961 | } else { | |
b5ff37ac | 962 | strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin); |
bc699afc | 963 | } |
8434c2f1 | 964 | |
689f0396 | 965 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf); |
df61c889 SR |
966 | strbuf_addf(&key, "remote.%s.url", option_origin); |
967 | git_config_set(key.buf, repo); | |
968 | strbuf_reset(&key); | |
969 | ||
f7415b4d | 970 | if (option_required_reference.nr || option_optional_reference.nr) |
dbc92b07 | 971 | setup_reference(); |
766ac6a6 | 972 | |
689f0396 DB |
973 | fetch_pattern = value.buf; |
974 | refspec = parse_fetch_refspec(1, &fetch_pattern); | |
975 | ||
976 | strbuf_reset(&value); | |
8434c2f1 | 977 | |
6f48d39f NTND |
978 | remote = remote_get(option_origin); |
979 | transport = transport_get(remote, remote->url[0]); | |
822f0c4f | 980 | transport_set_verbosity(transport, option_verbosity, option_progress); |
c915f11e | 981 | transport->family = family; |
822f0c4f | 982 | |
f38aa83f MB |
983 | path = get_repo_path(remote->url[0], &is_bundle); |
984 | is_local = option_local != 0 && path && !is_bundle; | |
985 | if (is_local) { | |
986 | if (option_depth) | |
987 | warning(_("--depth is ignored in local clones; use file:// instead.")); | |
988 | if (!access(mkpath("%s/shallow", path), F_OK)) { | |
989 | if (option_local > 0) | |
990 | warning(_("source repository is shallow, ignoring --local")); | |
991 | is_local = 0; | |
992 | } | |
993 | } | |
994 | if (option_local > 0 && !is_local) | |
995 | warning(_("--local is ignored")); | |
beea4152 | 996 | transport->cloning = 1; |
8434c2f1 | 997 | |
643f918d JK |
998 | if (!transport->get_refs_list || (!is_local && !transport->fetch)) |
999 | die(_("Don't know how to clone %s"), transport->url); | |
37b78c25 | 1000 | |
643f918d | 1001 | transport_set_option(transport, TRANS_OPT_KEEP, "yes"); |
8434c2f1 | 1002 | |
643f918d JK |
1003 | if (option_depth) |
1004 | transport_set_option(transport, TRANS_OPT_DEPTH, | |
1005 | option_depth); | |
1006 | if (option_single_branch) | |
1007 | transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); | |
8434c2f1 | 1008 | |
643f918d JK |
1009 | if (option_upload_pack) |
1010 | transport_set_option(transport, TRANS_OPT_UPLOADPACK, | |
1011 | option_upload_pack); | |
c6807a40 | 1012 | |
643f918d JK |
1013 | if (transport->smart_options && !option_depth) |
1014 | transport->smart_options->check_self_contained_and_connected = 1; | |
8434c2f1 | 1015 | |
6f48d39f | 1016 | refs = transport_get_remote_refs(transport); |
8434c2f1 | 1017 | |
5b05795c MH |
1018 | if (refs) { |
1019 | mapped_refs = wanted_peer_refs(refs, refspec); | |
1020 | /* | |
1021 | * transport_get_remote_refs() may return refs with null sha-1 | |
1022 | * in mapped_refs (see struct transport->get_refs_list | |
1023 | * comment). In that case we need fetch it early because | |
1024 | * remote_head code below relies on it. | |
1025 | * | |
1026 | * for normal clones, transport_get_remote_refs() should | |
1027 | * return reliable ref set, we can delay cloning until after | |
1028 | * remote HEAD check. | |
1029 | */ | |
1030 | for (ref = refs; ref; ref = ref->next) | |
f4e54d02 | 1031 | if (is_null_oid(&ref->old_oid)) { |
5b05795c MH |
1032 | complete_refs_before_fetch = 0; |
1033 | break; | |
1034 | } | |
90498161 | 1035 | |
5b05795c MH |
1036 | if (!is_local && !complete_refs_before_fetch) |
1037 | transport_fetch_refs(transport, mapped_refs); | |
8434c2f1 | 1038 | |
6cb4e6cc | 1039 | remote_head = find_ref_by_name(refs, "HEAD"); |
7a4ee28f JK |
1040 | remote_head_points_at = |
1041 | guess_remote_head(remote_head, mapped_refs, 0); | |
1042 | ||
1043 | if (option_branch) { | |
7a4ee28f | 1044 | our_head_points_at = |
9e585046 | 1045 | find_remote_branch(mapped_refs, option_branch); |
7a4ee28f | 1046 | |
920b691f NTND |
1047 | if (!our_head_points_at) |
1048 | die(_("Remote branch %s not found in upstream %s"), | |
1049 | option_branch, option_origin); | |
7a4ee28f JK |
1050 | } |
1051 | else | |
1052 | our_head_points_at = remote_head_points_at; | |
86ac7518 SR |
1053 | } |
1054 | else { | |
a3552aba RT |
1055 | if (option_branch) |
1056 | die(_("Remote branch %s not found in upstream %s"), | |
1057 | option_branch, option_origin); | |
1058 | ||
e84d7b74 | 1059 | warning(_("You appear to have cloned an empty repository.")); |
5b05795c | 1060 | mapped_refs = NULL; |
7a4ee28f JK |
1061 | our_head_points_at = NULL; |
1062 | remote_head_points_at = NULL; | |
86ac7518 SR |
1063 | remote_head = NULL; |
1064 | option_no_checkout = 1; | |
5cd12b85 | 1065 | if (!option_bare) |
a9f2c136 | 1066 | install_branch_config(0, "master", option_origin, |
5cd12b85 | 1067 | "refs/heads/master"); |
86ac7518 | 1068 | } |
8434c2f1 | 1069 | |
31b808a0 RT |
1070 | write_refspec_config(src_ref_prefix, our_head_points_at, |
1071 | remote_head_points_at, &branch_top); | |
1072 | ||
6f48d39f NTND |
1073 | if (is_local) |
1074 | clone_local(path, git_dir); | |
90498161 | 1075 | else if (refs && complete_refs_before_fetch) |
6f48d39f | 1076 | transport_fetch_refs(transport, mapped_refs); |
8434c2f1 | 1077 | |
960b7d1c | 1078 | update_remote_refs(refs, mapped_refs, remote_head_points_at, |
45ed4afa | 1079 | branch_top.buf, reflog_msg.buf, transport, !is_local); |
8434c2f1 | 1080 | |
f034d354 | 1081 | update_head(our_head_points_at, remote_head, reflog_msg.buf); |
1db4a75c | 1082 | |
6f48d39f NTND |
1083 | transport_unlock_pack(transport); |
1084 | transport_disconnect(transport); | |
1db4a75c | 1085 | |
786b150c JS |
1086 | if (option_dissociate) { |
1087 | close_all_packs(); | |
fb1d6dab | 1088 | dissociate_from_references(); |
786b150c | 1089 | } |
fb1d6dab | 1090 | |
d3b34622 | 1091 | junk_mode = JUNK_LEAVE_REPO; |
c39852c1 | 1092 | err = checkout(); |
8434c2f1 DB |
1093 | |
1094 | strbuf_release(&reflog_msg); | |
b5ff37ac MV |
1095 | strbuf_release(&branch_top); |
1096 | strbuf_release(&key); | |
1097 | strbuf_release(&value); | |
d3b34622 | 1098 | junk_mode = JUNK_LEAVE_ALL; |
50b67732 SB |
1099 | |
1100 | free(refspec); | |
dfa7a6c5 | 1101 | return err; |
8434c2f1 | 1102 | } |