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Commit | Line | Data |
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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" |
b2141fc1 | 12 | #include "config.h" |
697cc8ef | 13 | #include "lockfile.h" |
8434c2f1 DB |
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" | |
4a16d072 | 23 | #include "sigchain.h" |
a9f2c136 | 24 | #include "branch.h" |
8ef51733 | 25 | #include "remote.h" |
dfa7a6c5 | 26 | #include "run-command.h" |
0433ad12 | 27 | #include "connected.h" |
3836d88a | 28 | #include "packfile.h" |
8434c2f1 DB |
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[] = { | |
9c9b4f2f | 39 | N_("git clone [<options>] [--] <repo> [<dir>]"), |
8434c2f1 DB |
40 | NULL |
41 | }; | |
42 | ||
3e6e0edd | 43 | static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1; |
bb62e0a9 | 44 | static int option_local = -1, option_no_hardlinks, option_shared; |
0dab2468 | 45 | static int option_no_tags; |
18a74a09 | 46 | static int option_shallow_submodules; |
994c2aaf NTND |
47 | static int deepen; |
48 | static char *option_template, *option_depth, *option_since; | |
8434c2f1 | 49 | static char *option_origin = NULL; |
7a4ee28f | 50 | static char *option_branch = NULL; |
859e5df9 | 51 | static struct string_list option_not = STRING_LIST_INIT_NODUP; |
b57fb80a | 52 | static const char *real_git_dir; |
8434c2f1 | 53 | static char *option_upload_pack = "git-upload-pack"; |
5bd631b3 | 54 | static int option_verbosity; |
01fdc21f | 55 | static int option_progress = -1; |
c915f11e | 56 | static enum transport_family family; |
2721ce21 | 57 | static struct string_list option_config = STRING_LIST_INIT_NODUP; |
5e40800d | 58 | static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; |
f7415b4d | 59 | static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP; |
fb1d6dab | 60 | static int option_dissociate; |
72290d6a | 61 | static int max_jobs = -1; |
bb62e0a9 BW |
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 | } | |
dbc92b07 | 77 | |
8434c2f1 | 78 | static struct option builtin_clone_options[] = { |
5bd631b3 | 79 | OPT__VERBOSITY(&option_verbosity), |
01fdc21f | 80 | OPT_BOOL(0, "progress", &option_progress, |
32b77add | 81 | N_("force progress reporting")), |
d5d09d47 SB |
82 | OPT_BOOL('n', "no-checkout", &option_no_checkout, |
83 | N_("don't create a checkout")), | |
4741edd5 SB |
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")), | |
d5d09d47 SB |
87 | OPT_BOOL(0, "mirror", &option_mirror, |
88 | N_("create a mirror repository (implies bare)")), | |
189260b1 | 89 | OPT_BOOL('l', "local", &option_local, |
32b77add | 90 | N_("to clone from a local repository")), |
d5d09d47 | 91 | OPT_BOOL(0, "no-hardlinks", &option_no_hardlinks, |
32b77add | 92 | N_("don't use local hardlinks, always copy")), |
d5d09d47 | 93 | OPT_BOOL('s', "shared", &option_shared, |
32b77add | 94 | N_("setup as shared repository")), |
bb62e0a9 BW |
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)"." }, | |
72290d6a SB |
102 | OPT_INTEGER('j', "jobs", &max_jobs, |
103 | N_("number of submodules cloned in parallel")), | |
32b77add NTND |
104 | OPT_STRING(0, "template", &option_template, N_("template-directory"), |
105 | N_("directory from which templates will be used")), | |
5e40800d | 106 | OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"), |
8ade009c | 107 | N_("reference repository")), |
f7415b4d SB |
108 | OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference, |
109 | N_("repo"), N_("reference repository")), | |
14f8b9b4 JK |
110 | OPT_BOOL(0, "dissociate", &option_dissociate, |
111 | N_("use --reference only while cloning")), | |
32b77add NTND |
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")), | |
994c2aaf NTND |
120 | OPT_STRING(0, "shallow-since", &option_since, N_("time"), |
121 | N_("create a shallow clone since a specific time")), | |
859e5df9 | 122 | OPT_STRING_LIST(0, "shallow-exclude", &option_not, N_("revision"), |
6d873865 | 123 | N_("deepen history of shallow clone, excluding rev")), |
3e6e0edd | 124 | OPT_BOOL(0, "single-branch", &option_single_branch, |
32b77add | 125 | N_("clone only one branch, HEAD or --branch")), |
0dab2468 ÆAB |
126 | OPT_BOOL(0, "no-tags", &option_no_tags, |
127 | N_("don't clone any tags, and make later fetches not to follow them")), | |
d22eb044 SB |
128 | OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules, |
129 | N_("any cloned submodules will be shallow")), | |
32b77add NTND |
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")), | |
c915f11e EW |
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), | |
8434c2f1 DB |
138 | OPT_END() |
139 | }; | |
140 | ||
0ea68e42 | 141 | static const char *get_repo_path_1(struct strbuf *path, int *is_bundle) |
8434c2f1 | 142 | { |
b3256eb8 | 143 | static char *suffix[] = { "/.git", "", ".git/.git", ".git" }; |
8434c2f1 | 144 | static char *bundle_suffix[] = { ".bundle", "" }; |
0ea68e42 | 145 | size_t baselen = path->len; |
8434c2f1 DB |
146 | struct stat st; |
147 | int i; | |
148 | ||
149 | for (i = 0; i < ARRAY_SIZE(suffix); i++) { | |
0ea68e42 JK |
150 | strbuf_setlen(path, baselen); |
151 | strbuf_addstr(path, suffix[i]); | |
152 | if (stat(path->buf, &st)) | |
9b0ebc72 | 153 | continue; |
0ea68e42 | 154 | if (S_ISDIR(st.st_mode) && is_git_directory(path->buf)) { |
8434c2f1 | 155 | *is_bundle = 0; |
0ea68e42 | 156 | return path->buf; |
9b0ebc72 NTND |
157 | } else if (S_ISREG(st.st_mode) && st.st_size > 8) { |
158 | /* Is it a "gitfile"? */ | |
159 | char signature[8]; | |
0ea68e42 JK |
160 | const char *dst; |
161 | int len, fd = open(path->buf, O_RDONLY); | |
9b0ebc72 NTND |
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; | |
0ea68e42 JK |
168 | dst = read_gitfile(path->buf); |
169 | if (dst) { | |
9b0ebc72 | 170 | *is_bundle = 0; |
0ea68e42 | 171 | return dst; |
9b0ebc72 | 172 | } |
8434c2f1 DB |
173 | } |
174 | } | |
175 | ||
176 | for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { | |
0ea68e42 JK |
177 | strbuf_setlen(path, baselen); |
178 | strbuf_addstr(path, bundle_suffix[i]); | |
179 | if (!stat(path->buf, &st) && S_ISREG(st.st_mode)) { | |
8434c2f1 | 180 | *is_bundle = 1; |
0ea68e42 | 181 | return path->buf; |
8434c2f1 DB |
182 | } |
183 | } | |
184 | ||
185 | return NULL; | |
186 | } | |
187 | ||
0ea68e42 JK |
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); | |
0aaad415 | 196 | canon = raw ? absolute_pathdup(raw) : NULL; |
0ea68e42 JK |
197 | strbuf_release(&path); |
198 | return canon; | |
199 | } | |
200 | ||
6612f877 | 201 | static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) |
8434c2f1 | 202 | { |
e8959867 | 203 | const char *end = repo + strlen(repo), *start, *ptr; |
7e837c64 | 204 | size_t len; |
8a94bc7b | 205 | char *dir; |
b8c5db35 | 206 | |
e8959867 PS |
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 | ||
b8c5db35 | 226 | /* |
8a94bc7b | 227 | * Strip trailing spaces, slashes and /.git |
b8c5db35 | 228 | */ |
e8959867 | 229 | while (start < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) |
b8c5db35 | 230 | end--; |
e8959867 | 231 | if (end - start > 5 && is_dir_sep(end[-5]) && |
b8c5db35 JS |
232 | !strncmp(end - 4, ".git", 4)) { |
233 | end -= 5; | |
e8959867 | 234 | while (start < end && is_dir_sep(end[-1])) |
b8c5db35 JS |
235 | end--; |
236 | } | |
237 | ||
238 | /* | |
92722efe PS |
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 | ||
b8c5db35 | 255 | /* |
e8959867 PS |
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. | |
b8c5db35 | 260 | */ |
e8959867 PS |
261 | ptr = end; |
262 | while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') | |
263 | ptr--; | |
264 | start = ptr; | |
b8c5db35 JS |
265 | |
266 | /* | |
267 | * Strip .{bundle,git}. | |
268 | */ | |
db2e2204 JK |
269 | len = end - start; |
270 | strip_suffix_mem(start, &len, is_bundle ? ".bundle" : ".git"); | |
8434c2f1 | 271 | |
adef9561 | 272 | if (!len || (len == 1 && *start == '/')) |
39ad4f39 NTND |
273 | die(_("No directory name could be guessed.\n" |
274 | "Please specify a directory on the command line")); | |
adef9561 | 275 | |
7e837c64 SS |
276 | if (is_bare) |
277 | dir = xstrfmt("%.*s.git", (int)len, start); | |
278 | else | |
279 | dir = xstrndup(start, len); | |
8a94bc7b AR |
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'; | |
6612f877 | 302 | } |
8a94bc7b | 303 | return dir; |
8434c2f1 DB |
304 | } |
305 | ||
44a68fd5 CB |
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 | ||
dbc92b07 | 315 | static int add_one_reference(struct string_list_item *item, void *cb_data) |
8434c2f1 | 316 | { |
9eeea7d2 | 317 | struct strbuf err = STRBUF_INIT; |
f7415b4d | 318 | int *required = cb_data; |
9eeea7d2 | 319 | char *ref_git = compute_alternate_path(item->string, &err); |
8434c2f1 | 320 | |
f7415b4d SB |
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 | } | |
606e435a | 334 | |
9eeea7d2 | 335 | strbuf_release(&err); |
f7415b4d | 336 | free(ref_git); |
dbc92b07 JH |
337 | return 0; |
338 | } | |
8434c2f1 | 339 | |
dbc92b07 JH |
340 | static void setup_reference(void) |
341 | { | |
f7415b4d SB |
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); | |
8434c2f1 DB |
348 | } |
349 | ||
e6baf4a1 JH |
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 | */ | |
02912f47 | 365 | FILE *in = xfopen(src->buf, "r"); |
e6baf4a1 JH |
366 | struct strbuf line = STRBUF_INIT; |
367 | ||
3f163962 | 368 | while (strbuf_getline(&line, in) != EOF) { |
dcf69262 | 369 | char *abs_path; |
e6baf4a1 JH |
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 | } | |
dcf69262 | 376 | abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf); |
22d3b8de JK |
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); | |
dcf69262 | 382 | free(abs_path); |
e6baf4a1 JH |
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) | |
8434c2f1 DB |
390 | { |
391 | struct dirent *de; | |
392 | struct stat buf; | |
393 | int src_len, dest_len; | |
394 | DIR *dir; | |
395 | ||
b9e125e0 | 396 | dir = opendir(src->buf); |
8434c2f1 | 397 | if (!dir) |
e84d7b74 | 398 | die_errno(_("failed to open '%s'"), src->buf); |
8434c2f1 | 399 | |
b9e125e0 | 400 | if (mkdir(dest->buf, 0777)) { |
8434c2f1 | 401 | if (errno != EEXIST) |
e84d7b74 | 402 | die_errno(_("failed to create directory '%s'"), dest->buf); |
b9e125e0 | 403 | else if (stat(dest->buf, &buf)) |
e84d7b74 | 404 | die_errno(_("failed to stat '%s'"), dest->buf); |
8434c2f1 | 405 | else if (!S_ISDIR(buf.st_mode)) |
e84d7b74 | 406 | die(_("%s exists and is not a directory"), dest->buf); |
8434c2f1 DB |
407 | } |
408 | ||
b9e125e0 MV |
409 | strbuf_addch(src, '/'); |
410 | src_len = src->len; | |
411 | strbuf_addch(dest, '/'); | |
412 | dest_len = dest->len; | |
8434c2f1 DB |
413 | |
414 | while ((de = readdir(dir)) != NULL) { | |
b9e125e0 MV |
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)) { | |
e84d7b74 | 420 | warning (_("failed to stat %s\n"), src->buf); |
8434c2f1 DB |
421 | continue; |
422 | } | |
423 | if (S_ISDIR(buf.st_mode)) { | |
424 | if (de->d_name[0] != '.') | |
e6baf4a1 JH |
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); | |
8434c2f1 DB |
433 | continue; |
434 | } | |
435 | ||
b9e125e0 | 436 | if (unlink(dest->buf) && errno != ENOENT) |
e84d7b74 | 437 | die_errno(_("failed to unlink '%s'"), dest->buf); |
fdabc242 | 438 | if (!option_no_hardlinks) { |
b9e125e0 | 439 | if (!link(src->buf, dest->buf)) |
fdabc242 | 440 | continue; |
189260b1 | 441 | if (option_local > 0) |
e84d7b74 | 442 | die_errno(_("failed to create link '%s'"), dest->buf); |
fdabc242 | 443 | option_no_hardlinks = 1; |
8434c2f1 | 444 | } |
f7835a25 | 445 | if (copy_file_with_time(dest->buf, src->buf, 0666)) |
e84d7b74 | 446 | die_errno(_("failed to copy file to '%s'"), dest->buf); |
8434c2f1 | 447 | } |
689ef4d4 | 448 | closedir(dir); |
8434c2f1 DB |
449 | } |
450 | ||
6f48d39f | 451 | static void clone_local(const char *src_repo, const char *dest_repo) |
8434c2f1 | 452 | { |
e6baf4a1 JH |
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; | |
744e4697 NTND |
461 | get_common_dir(&src, src_repo); |
462 | get_common_dir(&dest, dest_repo); | |
463 | strbuf_addstr(&src, "/objects"); | |
464 | strbuf_addstr(&dest, "/objects"); | |
e6baf4a1 | 465 | copy_or_link_directory(&src, &dest, src_repo, src.len); |
b9e125e0 MV |
466 | strbuf_release(&src); |
467 | strbuf_release(&dest); | |
8434c2f1 DB |
468 | } |
469 | ||
28ba96ab | 470 | if (0 <= option_verbosity) |
68b939b2 | 471 | fprintf(stderr, _("done.\n")); |
8434c2f1 DB |
472 | } |
473 | ||
474 | static const char *junk_work_tree; | |
d45420c1 | 475 | static int junk_work_tree_flags; |
8434c2f1 | 476 | static const char *junk_git_dir; |
d45420c1 | 477 | static int junk_git_dir_flags; |
85064630 | 478 | static enum { |
d3b34622 JK |
479 | JUNK_LEAVE_NONE, |
480 | JUNK_LEAVE_REPO, | |
481 | JUNK_LEAVE_ALL | |
482 | } junk_mode = JUNK_LEAVE_NONE; | |
483 | ||
484 | static const char junk_leave_repo_msg[] = | |
485 | N_("Clone succeeded, but checkout failed.\n" | |
486 | "You can inspect what was checked out with 'git status'\n" | |
487 | "and retry the checkout with 'git checkout -f HEAD'\n"); | |
8434c2f1 DB |
488 | |
489 | static void remove_junk(void) | |
490 | { | |
f285a2d7 | 491 | struct strbuf sb = STRBUF_INIT; |
d3b34622 JK |
492 | |
493 | switch (junk_mode) { | |
494 | case JUNK_LEAVE_REPO: | |
495 | warning("%s", _(junk_leave_repo_msg)); | |
496 | /* fall-through */ | |
497 | case JUNK_LEAVE_ALL: | |
498 | return; | |
499 | default: | |
500 | /* proceed to removal */ | |
501 | break; | |
502 | } | |
503 | ||
8434c2f1 DB |
504 | if (junk_git_dir) { |
505 | strbuf_addstr(&sb, junk_git_dir); | |
d45420c1 | 506 | remove_dir_recursively(&sb, junk_git_dir_flags); |
8434c2f1 DB |
507 | strbuf_reset(&sb); |
508 | } | |
509 | if (junk_work_tree) { | |
510 | strbuf_addstr(&sb, junk_work_tree); | |
d45420c1 | 511 | remove_dir_recursively(&sb, junk_work_tree_flags); |
8434c2f1 | 512 | } |
9c18b548 | 513 | strbuf_release(&sb); |
8434c2f1 DB |
514 | } |
515 | ||
516 | static void remove_junk_on_signal(int signo) | |
517 | { | |
518 | remove_junk(); | |
4a16d072 | 519 | sigchain_pop(signo); |
8434c2f1 DB |
520 | raise(signo); |
521 | } | |
522 | ||
9e585046 NTND |
523 | static struct ref *find_remote_branch(const struct ref *refs, const char *branch) |
524 | { | |
525 | struct ref *ref; | |
526 | struct strbuf head = STRBUF_INIT; | |
527 | strbuf_addstr(&head, "refs/heads/"); | |
528 | strbuf_addstr(&head, branch); | |
529 | ref = find_ref_by_name(refs, head.buf); | |
530 | strbuf_release(&head); | |
5a7d5b68 NTND |
531 | |
532 | if (ref) | |
533 | return ref; | |
534 | ||
535 | strbuf_addstr(&head, "refs/tags/"); | |
536 | strbuf_addstr(&head, branch); | |
537 | ref = find_ref_by_name(refs, head.buf); | |
538 | strbuf_release(&head); | |
539 | ||
9e585046 NTND |
540 | return ref; |
541 | } | |
542 | ||
5bdc32d3 NP |
543 | static struct ref *wanted_peer_refs(const struct ref *refs, |
544 | struct refspec *refspec) | |
8434c2f1 | 545 | { |
c1921c18 JK |
546 | struct ref *head = copy_ref(find_ref_by_name(refs, "HEAD")); |
547 | struct ref *local_refs = head; | |
548 | struct ref **tail = head ? &head->next : &local_refs; | |
8434c2f1 | 549 | |
3e6e0edd NTND |
550 | if (option_single_branch) { |
551 | struct ref *remote_head = NULL; | |
552 | ||
553 | if (!option_branch) | |
554 | remote_head = guess_remote_head(head, refs, 0); | |
0ec4b165 NTND |
555 | else { |
556 | local_refs = NULL; | |
557 | tail = &local_refs; | |
558 | remote_head = copy_ref(find_remote_branch(refs, option_branch)); | |
559 | } | |
3e6e0edd NTND |
560 | |
561 | if (!remote_head && option_branch) | |
562 | warning(_("Could not find remote branch %s to clone."), | |
563 | option_branch); | |
5a7d5b68 | 564 | else { |
3e6e0edd | 565 | get_fetch_map(remote_head, refspec, &tail, 0); |
5a7d5b68 NTND |
566 | |
567 | /* if --branch=tag, pull the requested tag explicitly */ | |
568 | get_fetch_map(remote_head, tag_refspec, &tail, 0); | |
569 | } | |
3e6e0edd NTND |
570 | } else |
571 | get_fetch_map(refs, refspec, &tail, 0); | |
572 | ||
0dab2468 | 573 | if (!option_mirror && !option_single_branch && !option_no_tags) |
468386a9 | 574 | get_fetch_map(refs, tag_refspec, &tail, 0); |
8434c2f1 | 575 | |
5bdc32d3 NP |
576 | return local_refs; |
577 | } | |
578 | ||
579 | static void write_remote_refs(const struct ref *local_refs) | |
580 | { | |
581 | const struct ref *r; | |
582 | ||
58f233ce MH |
583 | struct ref_transaction *t; |
584 | struct strbuf err = STRBUF_INIT; | |
585 | ||
586 | t = ref_transaction_begin(&err); | |
587 | if (!t) | |
588 | die("%s", err.buf); | |
9f69d297 | 589 | |
c1921c18 JK |
590 | for (r = local_refs; r; r = r->next) { |
591 | if (!r->peer_ref) | |
592 | continue; | |
f4e54d02 | 593 | if (ref_transaction_create(t, r->peer_ref->name, r->old_oid.hash, |
58f233ce MH |
594 | 0, NULL, &err)) |
595 | die("%s", err.buf); | |
c1921c18 | 596 | } |
3e8aded2 | 597 | |
58f233ce MH |
598 | if (initial_ref_transaction_commit(t, &err)) |
599 | die("%s", err.buf); | |
600 | ||
601 | strbuf_release(&err); | |
602 | ref_transaction_free(t); | |
8434c2f1 DB |
603 | } |
604 | ||
3e6e0edd NTND |
605 | static void write_followtags(const struct ref *refs, const char *msg) |
606 | { | |
607 | const struct ref *ref; | |
608 | for (ref = refs; ref; ref = ref->next) { | |
59556548 | 609 | if (!starts_with(ref->name, "refs/tags/")) |
3e6e0edd | 610 | continue; |
59556548 | 611 | if (ends_with(ref->name, "^{}")) |
3e6e0edd | 612 | continue; |
f4e54d02 | 613 | if (!has_object_file(&ref->old_oid)) |
3e6e0edd | 614 | continue; |
f4e54d02 | 615 | update_ref(msg, ref->name, ref->old_oid.hash, |
f4124112 | 616 | NULL, 0, UPDATE_REFS_DIE_ON_ERR); |
3e6e0edd NTND |
617 | } |
618 | } | |
619 | ||
0433ad12 JK |
620 | static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) |
621 | { | |
622 | struct ref **rm = cb_data; | |
623 | struct ref *ref = *rm; | |
624 | ||
625 | /* | |
626 | * Skip anything missing a peer_ref, which we are not | |
627 | * actually going to write a ref for. | |
628 | */ | |
629 | while (ref && !ref->peer_ref) | |
630 | ref = ref->next; | |
631 | /* Returning -1 notes "end of list" to the caller. */ | |
632 | if (!ref) | |
633 | return -1; | |
634 | ||
f4e54d02 | 635 | hashcpy(sha1, ref->old_oid.hash); |
0433ad12 JK |
636 | *rm = ref->next; |
637 | return 0; | |
638 | } | |
639 | ||
960b7d1c NTND |
640 | static void update_remote_refs(const struct ref *refs, |
641 | const struct ref *mapped_refs, | |
642 | const struct ref *remote_head_points_at, | |
643 | const char *branch_top, | |
c6807a40 | 644 | const char *msg, |
45ed4afa | 645 | struct transport *transport, |
125a05fd | 646 | int check_connectivity) |
960b7d1c | 647 | { |
0433ad12 JK |
648 | const struct ref *rm = mapped_refs; |
649 | ||
125a05fd | 650 | if (check_connectivity) { |
7043c707 JK |
651 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
652 | ||
653 | opt.transport = transport; | |
38e590ea | 654 | opt.progress = transport->progress; |
7043c707 | 655 | |
7043c707 | 656 | if (check_connected(iterate_ref_map, &rm, &opt)) |
125a05fd JK |
657 | die(_("remote did not send all necessary objects")); |
658 | } | |
0433ad12 | 659 | |
960b7d1c | 660 | if (refs) { |
960b7d1c | 661 | write_remote_refs(mapped_refs); |
0dab2468 | 662 | if (option_single_branch && !option_no_tags) |
960b7d1c NTND |
663 | write_followtags(refs, msg); |
664 | } | |
665 | ||
666 | if (remote_head_points_at && !option_bare) { | |
667 | struct strbuf head_ref = STRBUF_INIT; | |
668 | strbuf_addstr(&head_ref, branch_top); | |
669 | strbuf_addstr(&head_ref, "HEAD"); | |
4be49d75 JK |
670 | if (create_symref(head_ref.buf, |
671 | remote_head_points_at->peer_ref->name, | |
672 | msg) < 0) | |
39ad4f39 | 673 | die(_("unable to update %s"), head_ref.buf); |
4be49d75 | 674 | strbuf_release(&head_ref); |
960b7d1c NTND |
675 | } |
676 | } | |
677 | ||
f034d354 NTND |
678 | static void update_head(const struct ref *our, const struct ref *remote, |
679 | const char *msg) | |
680 | { | |
cf4fff57 JK |
681 | const char *head; |
682 | if (our && skip_prefix(our->name, "refs/heads/", &head)) { | |
f034d354 | 683 | /* Local default branch link */ |
4be49d75 | 684 | if (create_symref("HEAD", our->name, NULL) < 0) |
39ad4f39 | 685 | die(_("unable to update HEAD")); |
f034d354 | 686 | if (!option_bare) { |
f4e54d02 | 687 | update_ref(msg, "HEAD", our->old_oid.hash, NULL, 0, |
f4124112 | 688 | UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
689 | install_branch_config(0, head, option_origin, our->name); |
690 | } | |
5a7d5b68 | 691 | } else if (our) { |
bc83266a | 692 | struct commit *c = lookup_commit_reference(&our->old_oid); |
5a7d5b68 | 693 | /* --branch specifies a non-branch (i.e. tags), detach HEAD */ |
ed1c9977 | 694 | update_ref(msg, "HEAD", c->object.oid.hash, |
f4124112 | 695 | NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
696 | } else if (remote) { |
697 | /* | |
698 | * We know remote HEAD points to a non-branch, or | |
920b691f | 699 | * HEAD points to a branch but we don't know which one. |
f034d354 NTND |
700 | * Detach HEAD in all these cases. |
701 | */ | |
f4e54d02 | 702 | update_ref(msg, "HEAD", remote->old_oid.hash, |
f4124112 | 703 | NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
704 | } |
705 | } | |
706 | ||
72c5f883 | 707 | static int checkout(int submodule_progress) |
c39852c1 | 708 | { |
ddc2cc64 | 709 | struct object_id oid; |
c39852c1 NTND |
710 | char *head; |
711 | struct lock_file *lock_file; | |
712 | struct unpack_trees_options opts; | |
713 | struct tree *tree; | |
714 | struct tree_desc t; | |
03b86647 | 715 | int err = 0; |
c39852c1 NTND |
716 | |
717 | if (option_no_checkout) | |
718 | return 0; | |
719 | ||
ddc2cc64 | 720 | head = resolve_refdup("HEAD", RESOLVE_REF_READING, oid.hash, NULL); |
c39852c1 NTND |
721 | if (!head) { |
722 | warning(_("remote HEAD refers to nonexistent ref, " | |
723 | "unable to checkout.\n")); | |
724 | return 0; | |
725 | } | |
2857093b NTND |
726 | if (!strcmp(head, "HEAD")) { |
727 | if (advice_detached_head) | |
ddc2cc64 | 728 | detach_advice(oid_to_hex(&oid)); |
2857093b | 729 | } else { |
59556548 | 730 | if (!starts_with(head, "refs/heads/")) |
c39852c1 NTND |
731 | die(_("HEAD not found below refs/heads!")); |
732 | } | |
733 | free(head); | |
734 | ||
735 | /* We need to be in the new work tree for the checkout */ | |
736 | setup_work_tree(); | |
737 | ||
738 | lock_file = xcalloc(1, sizeof(struct lock_file)); | |
b3e83cc7 | 739 | hold_locked_index(lock_file, LOCK_DIE_ON_ERROR); |
c39852c1 NTND |
740 | |
741 | memset(&opts, 0, sizeof opts); | |
742 | opts.update = 1; | |
743 | opts.merge = 1; | |
744 | opts.fn = oneway_merge; | |
8f63da13 | 745 | opts.verbose_update = (option_verbosity >= 0); |
c39852c1 NTND |
746 | opts.src_index = &the_index; |
747 | opts.dst_index = &the_index; | |
748 | ||
a9dbc179 | 749 | tree = parse_tree_indirect(&oid); |
c39852c1 NTND |
750 | parse_tree(tree); |
751 | init_tree_desc(&t, tree->buffer, tree->size); | |
0aac7bb2 JK |
752 | if (unpack_trees(1, &t, &opts) < 0) |
753 | die(_("unable to checkout working tree")); | |
c39852c1 | 754 | |
03b86647 | 755 | if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) |
c39852c1 NTND |
756 | die(_("unable to write new index file")); |
757 | ||
15048f8a | 758 | err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1), |
ddc2cc64 | 759 | oid_to_hex(&oid), "1", NULL); |
c39852c1 | 760 | |
bb62e0a9 | 761 | if (!err && (option_recurse_submodules.nr > 0)) { |
72290d6a SB |
762 | struct argv_array args = ARGV_ARRAY_INIT; |
763 | argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL); | |
764 | ||
18a74a09 | 765 | if (option_shallow_submodules == 1) |
d22eb044 SB |
766 | argv_array_push(&args, "--depth=1"); |
767 | ||
72290d6a SB |
768 | if (max_jobs != -1) |
769 | argv_array_pushf(&args, "--jobs=%d", max_jobs); | |
770 | ||
72c5f883 JK |
771 | if (submodule_progress) |
772 | argv_array_push(&args, "--progress"); | |
773 | ||
03c004c5 BW |
774 | if (option_verbosity < 0) |
775 | argv_array_push(&args, "--quiet"); | |
776 | ||
72290d6a SB |
777 | err = run_command_v_opt(args.argv, RUN_GIT_CMD); |
778 | argv_array_clear(&args); | |
779 | } | |
c39852c1 NTND |
780 | |
781 | return err; | |
782 | } | |
783 | ||
84054f79 JK |
784 | static int write_one_config(const char *key, const char *value, void *data) |
785 | { | |
db4eca1f JN |
786 | return git_config_set_multivar_gently(key, |
787 | value ? value : "true", | |
788 | CONFIG_REGEX_NONE, 0); | |
84054f79 JK |
789 | } |
790 | ||
791 | static void write_config(struct string_list *config) | |
792 | { | |
793 | int i; | |
794 | ||
795 | for (i = 0; i < config->nr; i++) { | |
796 | if (git_config_parse_parameter(config->items[i].string, | |
797 | write_one_config, NULL) < 0) | |
39ad4f39 | 798 | die(_("unable to write parameters to config file")); |
84054f79 JK |
799 | } |
800 | } | |
801 | ||
24d36f14 DA |
802 | static void write_refspec_config(const char *src_ref_prefix, |
803 | const struct ref *our_head_points_at, | |
804 | const struct ref *remote_head_points_at, | |
805 | struct strbuf *branch_top) | |
31b808a0 RT |
806 | { |
807 | struct strbuf key = STRBUF_INIT; | |
808 | struct strbuf value = STRBUF_INIT; | |
809 | ||
810 | if (option_mirror || !option_bare) { | |
811 | if (option_single_branch && !option_mirror) { | |
812 | if (option_branch) { | |
60a5f5fc | 813 | if (starts_with(our_head_points_at->name, "refs/tags/")) |
31b808a0 RT |
814 | strbuf_addf(&value, "+%s:%s", our_head_points_at->name, |
815 | our_head_points_at->name); | |
816 | else | |
817 | strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, | |
818 | branch_top->buf, option_branch); | |
819 | } else if (remote_head_points_at) { | |
cf4fff57 JK |
820 | const char *head = remote_head_points_at->name; |
821 | if (!skip_prefix(head, "refs/heads/", &head)) | |
822 | die("BUG: remote HEAD points at non-head?"); | |
823 | ||
31b808a0 | 824 | strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, |
cf4fff57 | 825 | branch_top->buf, head); |
31b808a0 RT |
826 | } |
827 | /* | |
828 | * otherwise, the next "git fetch" will | |
829 | * simply fetch from HEAD without updating | |
d6ac1d21 | 830 | * any remote-tracking branch, which is what |
31b808a0 RT |
831 | * we want. |
832 | */ | |
833 | } else { | |
834 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf); | |
835 | } | |
836 | /* Configure the remote */ | |
837 | if (value.len) { | |
838 | strbuf_addf(&key, "remote.%s.fetch", option_origin); | |
839 | git_config_set_multivar(key.buf, value.buf, "^$", 0); | |
840 | strbuf_reset(&key); | |
841 | ||
842 | if (option_mirror) { | |
843 | strbuf_addf(&key, "remote.%s.mirror", option_origin); | |
844 | git_config_set(key.buf, "true"); | |
845 | strbuf_reset(&key); | |
846 | } | |
847 | } | |
848 | } | |
849 | ||
850 | strbuf_release(&key); | |
851 | strbuf_release(&value); | |
852 | } | |
853 | ||
fb1d6dab JH |
854 | static void dissociate_from_references(void) |
855 | { | |
856 | static const char* argv[] = { "repack", "-a", "-d", NULL }; | |
0181681e | 857 | char *alternates = git_pathdup("objects/info/alternates"); |
fb1d6dab | 858 | |
0181681e AR |
859 | if (!access(alternates, F_OK)) { |
860 | if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) | |
861 | die(_("cannot repack to clean up")); | |
862 | if (unlink(alternates) && errno != ENOENT) | |
863 | die_errno(_("cannot unlink temporary alternates file")); | |
864 | } | |
865 | free(alternates); | |
fb1d6dab JH |
866 | } |
867 | ||
f9e377ad JK |
868 | static int dir_exists(const char *path) |
869 | { | |
870 | struct stat sb; | |
871 | return !stat(path, &sb); | |
872 | } | |
873 | ||
8434c2f1 DB |
874 | int cmd_clone(int argc, const char **argv, const char *prefix) |
875 | { | |
24c61c44 | 876 | int is_bundle = 0, is_local; |
8434c2f1 DB |
877 | const char *repo_name, *repo, *work_tree, *git_dir; |
878 | char *path, *dir; | |
55892d23 | 879 | int dest_exists; |
37148311 | 880 | const struct ref *refs, *remote_head; |
7a4ee28f JK |
881 | const struct ref *remote_head_points_at; |
882 | const struct ref *our_head_points_at; | |
37148311 | 883 | struct ref *mapped_refs; |
90498161 | 884 | const struct ref *ref; |
b5ff37ac MV |
885 | struct strbuf key = STRBUF_INIT, value = STRBUF_INIT; |
886 | struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; | |
1db4a75c | 887 | struct transport *transport = NULL; |
9e585046 | 888 | const char *src_ref_prefix = "refs/heads/"; |
6f48d39f | 889 | struct remote *remote; |
90498161 | 890 | int err = 0, complete_refs_before_fetch = 1; |
72c5f883 | 891 | int submodule_progress; |
8434c2f1 | 892 | |
689f0396 DB |
893 | struct refspec *refspec; |
894 | const char *fetch_pattern; | |
8434c2f1 | 895 | |
bbc30f99 | 896 | packet_trace_identity("clone"); |
37782920 | 897 | argc = parse_options(argc, argv, prefix, builtin_clone_options, |
8434c2f1 DB |
898 | builtin_clone_usage, 0); |
899 | ||
d52dc4b1 | 900 | if (argc > 2) |
e84d7b74 | 901 | usage_msg_opt(_("Too many arguments."), |
d52dc4b1 JN |
902 | builtin_clone_usage, builtin_clone_options); |
903 | ||
8434c2f1 | 904 | if (argc == 0) |
e84d7b74 | 905 | usage_msg_opt(_("You must specify a repository to clone."), |
d52dc4b1 | 906 | builtin_clone_usage, builtin_clone_options); |
8434c2f1 | 907 | |
859e5df9 | 908 | if (option_depth || option_since || option_not.nr) |
994c2aaf | 909 | deepen = 1; |
3e6e0edd | 910 | if (option_single_branch == -1) |
994c2aaf | 911 | option_single_branch = deepen ? 1 : 0; |
3e6e0edd | 912 | |
bc699afc JS |
913 | if (option_mirror) |
914 | option_bare = 1; | |
915 | ||
8434c2f1 DB |
916 | if (option_bare) { |
917 | if (option_origin) | |
e84d7b74 | 918 | die(_("--bare and --origin %s options are incompatible."), |
8434c2f1 | 919 | option_origin); |
95b63f1e NTND |
920 | if (real_git_dir) |
921 | die(_("--bare and --separate-git-dir are incompatible.")); | |
8434c2f1 | 922 | option_no_checkout = 1; |
8434c2f1 DB |
923 | } |
924 | ||
925 | if (!option_origin) | |
926 | option_origin = "origin"; | |
927 | ||
928 | repo_name = argv[0]; | |
929 | ||
930 | path = get_repo_path(repo_name, &is_bundle); | |
931 | if (path) | |
0aaad415 | 932 | repo = absolute_pathdup(repo_name); |
8434c2f1 | 933 | else if (!strchr(repo_name, ':')) |
d3e1ddfd | 934 | die(_("repository '%s' does not exist"), repo_name); |
8434c2f1 DB |
935 | else |
936 | repo = repo_name; | |
937 | ||
5594bcad NTND |
938 | /* no need to be strict, transport_set_option() will validate it again */ |
939 | if (option_depth && atoi(option_depth) < 1) | |
940 | die(_("depth %s is not a positive number"), option_depth); | |
941 | ||
8434c2f1 DB |
942 | if (argc == 2) |
943 | dir = xstrdup(argv[1]); | |
944 | else | |
6612f877 | 945 | dir = guess_dir_name(repo_name, is_bundle, option_bare); |
44a68fd5 | 946 | strip_trailing_slashes(dir); |
8434c2f1 | 947 | |
f9e377ad | 948 | dest_exists = dir_exists(dir); |
55892d23 | 949 | if (dest_exists && !is_empty_dir(dir)) |
e84d7b74 ÆAB |
950 | die(_("destination path '%s' already exists and is not " |
951 | "an empty directory."), dir); | |
8434c2f1 | 952 | |
8434c2f1 DB |
953 | strbuf_addf(&reflog_msg, "clone: from %s", repo); |
954 | ||
955 | if (option_bare) | |
956 | work_tree = NULL; | |
957 | else { | |
958 | work_tree = getenv("GIT_WORK_TREE"); | |
f9e377ad | 959 | if (work_tree && dir_exists(work_tree)) |
e84d7b74 | 960 | die(_("working tree '%s' already exists."), work_tree); |
8434c2f1 DB |
961 | } |
962 | ||
963 | if (option_bare || work_tree) | |
964 | git_dir = xstrdup(dir); | |
965 | else { | |
966 | work_tree = dir; | |
4e2d094d | 967 | git_dir = mkpathdup("%s/.git", dir); |
8434c2f1 DB |
968 | } |
969 | ||
ee0e3872 JK |
970 | atexit(remove_junk); |
971 | sigchain_push_common(remove_junk_on_signal); | |
972 | ||
8434c2f1 | 973 | if (!option_bare) { |
8e21d63b | 974 | if (safe_create_leading_directories_const(work_tree) < 0) |
e84d7b74 | 975 | die_errno(_("could not create leading directories of '%s'"), |
d824cbba | 976 | work_tree); |
d45420c1 JK |
977 | if (dest_exists) |
978 | junk_work_tree_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
979 | else if (mkdir(work_tree, 0777)) | |
16eff6c0 | 980 | die_errno(_("could not create work tree dir '%s'"), |
d824cbba | 981 | work_tree); |
ee0e3872 | 982 | junk_work_tree = work_tree; |
8434c2f1 DB |
983 | set_git_work_tree(work_tree); |
984 | } | |
8434c2f1 | 985 | |
d45420c1 JK |
986 | if (real_git_dir) { |
987 | if (dir_exists(real_git_dir)) | |
988 | junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
989 | junk_git_dir = real_git_dir; | |
990 | } else { | |
991 | if (dest_exists) | |
992 | junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
993 | junk_git_dir = git_dir; | |
994 | } | |
8e21d63b | 995 | if (safe_create_leading_directories_const(git_dir) < 0) |
e84d7b74 | 996 | die(_("could not create leading directories of '%s'"), git_dir); |
b57fb80a | 997 | |
3781fcce ÆAB |
998 | if (0 <= option_verbosity) { |
999 | if (option_bare) | |
68b939b2 | 1000 | fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); |
3781fcce | 1001 | else |
68b939b2 | 1002 | fprintf(stderr, _("Cloning into '%s'...\n"), dir); |
3781fcce | 1003 | } |
31224cbd | 1004 | |
bb62e0a9 BW |
1005 | if (option_recurse_submodules.nr > 0) { |
1006 | struct string_list_item *item; | |
1007 | struct strbuf sb = STRBUF_INIT; | |
1008 | ||
1009 | /* remove duplicates */ | |
1010 | string_list_sort(&option_recurse_submodules); | |
1011 | string_list_remove_duplicates(&option_recurse_submodules, 0); | |
1012 | ||
1013 | /* | |
1014 | * NEEDSWORK: In a multi-working-tree world, this needs to be | |
1015 | * set in the per-worktree config. | |
1016 | */ | |
1017 | for_each_string_list_item(item, &option_recurse_submodules) { | |
1018 | strbuf_addf(&sb, "submodule.active=%s", | |
1019 | item->string); | |
1020 | string_list_append(&option_config, | |
1021 | strbuf_detach(&sb, NULL)); | |
1022 | } | |
1023 | ||
31224cbd SB |
1024 | if (option_required_reference.nr && |
1025 | option_optional_reference.nr) | |
1026 | die(_("clone --recursive is not compatible with " | |
1027 | "both --reference and --reference-if-able")); | |
1028 | else if (option_required_reference.nr) { | |
1029 | string_list_append(&option_config, | |
1030 | "submodule.alternateLocation=superproject"); | |
1031 | string_list_append(&option_config, | |
1032 | "submodule.alternateErrorStrategy=die"); | |
1033 | } else if (option_optional_reference.nr) { | |
1034 | string_list_append(&option_config, | |
1035 | "submodule.alternateLocation=superproject"); | |
1036 | string_list_append(&option_config, | |
1037 | "submodule.alternateErrorStrategy=info"); | |
1038 | } | |
1039 | } | |
1040 | ||
33158701 NTND |
1041 | init_db(git_dir, real_git_dir, option_template, INIT_DB_QUIET); |
1042 | ||
1043 | if (real_git_dir) | |
1044 | git_dir = real_git_dir; | |
1045 | ||
84054f79 | 1046 | write_config(&option_config); |
8434c2f1 | 1047 | |
9bd81e42 | 1048 | git_config(git_default_config, NULL); |
8434c2f1 DB |
1049 | |
1050 | if (option_bare) { | |
bc699afc JS |
1051 | if (option_mirror) |
1052 | src_ref_prefix = "refs/"; | |
b5ff37ac | 1053 | strbuf_addstr(&branch_top, src_ref_prefix); |
8434c2f1 DB |
1054 | |
1055 | git_config_set("core.bare", "true"); | |
1056 | } else { | |
b5ff37ac | 1057 | strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin); |
bc699afc | 1058 | } |
8434c2f1 | 1059 | |
689f0396 | 1060 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf); |
df61c889 SR |
1061 | strbuf_addf(&key, "remote.%s.url", option_origin); |
1062 | git_config_set(key.buf, repo); | |
1063 | strbuf_reset(&key); | |
1064 | ||
0dab2468 ÆAB |
1065 | if (option_no_tags) { |
1066 | strbuf_addf(&key, "remote.%s.tagOpt", option_origin); | |
1067 | git_config_set(key.buf, "--no-tags"); | |
1068 | strbuf_reset(&key); | |
1069 | } | |
1070 | ||
f7415b4d | 1071 | if (option_required_reference.nr || option_optional_reference.nr) |
dbc92b07 | 1072 | setup_reference(); |
766ac6a6 | 1073 | |
689f0396 DB |
1074 | fetch_pattern = value.buf; |
1075 | refspec = parse_fetch_refspec(1, &fetch_pattern); | |
1076 | ||
1077 | strbuf_reset(&value); | |
8434c2f1 | 1078 | |
6f48d39f NTND |
1079 | remote = remote_get(option_origin); |
1080 | transport = transport_get(remote, remote->url[0]); | |
822f0c4f | 1081 | transport_set_verbosity(transport, option_verbosity, option_progress); |
c915f11e | 1082 | transport->family = family; |
822f0c4f | 1083 | |
f38aa83f MB |
1084 | path = get_repo_path(remote->url[0], &is_bundle); |
1085 | is_local = option_local != 0 && path && !is_bundle; | |
1086 | if (is_local) { | |
1087 | if (option_depth) | |
1088 | warning(_("--depth is ignored in local clones; use file:// instead.")); | |
994c2aaf NTND |
1089 | if (option_since) |
1090 | warning(_("--shallow-since is ignored in local clones; use file:// instead.")); | |
859e5df9 NTND |
1091 | if (option_not.nr) |
1092 | warning(_("--shallow-exclude is ignored in local clones; use file:// instead.")); | |
f38aa83f MB |
1093 | if (!access(mkpath("%s/shallow", path), F_OK)) { |
1094 | if (option_local > 0) | |
1095 | warning(_("source repository is shallow, ignoring --local")); | |
1096 | is_local = 0; | |
1097 | } | |
1098 | } | |
1099 | if (option_local > 0 && !is_local) | |
1100 | warning(_("--local is ignored")); | |
beea4152 | 1101 | transport->cloning = 1; |
8434c2f1 | 1102 | |
643f918d JK |
1103 | if (!transport->get_refs_list || (!is_local && !transport->fetch)) |
1104 | die(_("Don't know how to clone %s"), transport->url); | |
37b78c25 | 1105 | |
643f918d | 1106 | transport_set_option(transport, TRANS_OPT_KEEP, "yes"); |
8434c2f1 | 1107 | |
643f918d JK |
1108 | if (option_depth) |
1109 | transport_set_option(transport, TRANS_OPT_DEPTH, | |
1110 | option_depth); | |
994c2aaf NTND |
1111 | if (option_since) |
1112 | transport_set_option(transport, TRANS_OPT_DEEPEN_SINCE, | |
1113 | option_since); | |
859e5df9 NTND |
1114 | if (option_not.nr) |
1115 | transport_set_option(transport, TRANS_OPT_DEEPEN_NOT, | |
1116 | (const char *)&option_not); | |
643f918d JK |
1117 | if (option_single_branch) |
1118 | transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); | |
8434c2f1 | 1119 | |
643f918d JK |
1120 | if (option_upload_pack) |
1121 | transport_set_option(transport, TRANS_OPT_UPLOADPACK, | |
1122 | option_upload_pack); | |
c6807a40 | 1123 | |
994c2aaf | 1124 | if (transport->smart_options && !deepen) |
643f918d | 1125 | transport->smart_options->check_self_contained_and_connected = 1; |
8434c2f1 | 1126 | |
6f48d39f | 1127 | refs = transport_get_remote_refs(transport); |
8434c2f1 | 1128 | |
5b05795c MH |
1129 | if (refs) { |
1130 | mapped_refs = wanted_peer_refs(refs, refspec); | |
1131 | /* | |
1132 | * transport_get_remote_refs() may return refs with null sha-1 | |
1133 | * in mapped_refs (see struct transport->get_refs_list | |
1134 | * comment). In that case we need fetch it early because | |
1135 | * remote_head code below relies on it. | |
1136 | * | |
1137 | * for normal clones, transport_get_remote_refs() should | |
1138 | * return reliable ref set, we can delay cloning until after | |
1139 | * remote HEAD check. | |
1140 | */ | |
1141 | for (ref = refs; ref; ref = ref->next) | |
f4e54d02 | 1142 | if (is_null_oid(&ref->old_oid)) { |
5b05795c MH |
1143 | complete_refs_before_fetch = 0; |
1144 | break; | |
1145 | } | |
90498161 | 1146 | |
5b05795c MH |
1147 | if (!is_local && !complete_refs_before_fetch) |
1148 | transport_fetch_refs(transport, mapped_refs); | |
8434c2f1 | 1149 | |
6cb4e6cc | 1150 | remote_head = find_ref_by_name(refs, "HEAD"); |
7a4ee28f JK |
1151 | remote_head_points_at = |
1152 | guess_remote_head(remote_head, mapped_refs, 0); | |
1153 | ||
1154 | if (option_branch) { | |
7a4ee28f | 1155 | our_head_points_at = |
9e585046 | 1156 | find_remote_branch(mapped_refs, option_branch); |
7a4ee28f | 1157 | |
920b691f NTND |
1158 | if (!our_head_points_at) |
1159 | die(_("Remote branch %s not found in upstream %s"), | |
1160 | option_branch, option_origin); | |
7a4ee28f JK |
1161 | } |
1162 | else | |
1163 | our_head_points_at = remote_head_points_at; | |
86ac7518 SR |
1164 | } |
1165 | else { | |
a3552aba RT |
1166 | if (option_branch) |
1167 | die(_("Remote branch %s not found in upstream %s"), | |
1168 | option_branch, option_origin); | |
1169 | ||
e84d7b74 | 1170 | warning(_("You appear to have cloned an empty repository.")); |
5b05795c | 1171 | mapped_refs = NULL; |
7a4ee28f JK |
1172 | our_head_points_at = NULL; |
1173 | remote_head_points_at = NULL; | |
86ac7518 SR |
1174 | remote_head = NULL; |
1175 | option_no_checkout = 1; | |
5cd12b85 | 1176 | if (!option_bare) |
a9f2c136 | 1177 | install_branch_config(0, "master", option_origin, |
5cd12b85 | 1178 | "refs/heads/master"); |
86ac7518 | 1179 | } |
8434c2f1 | 1180 | |
31b808a0 RT |
1181 | write_refspec_config(src_ref_prefix, our_head_points_at, |
1182 | remote_head_points_at, &branch_top); | |
1183 | ||
6f48d39f NTND |
1184 | if (is_local) |
1185 | clone_local(path, git_dir); | |
90498161 | 1186 | else if (refs && complete_refs_before_fetch) |
6f48d39f | 1187 | transport_fetch_refs(transport, mapped_refs); |
8434c2f1 | 1188 | |
960b7d1c | 1189 | update_remote_refs(refs, mapped_refs, remote_head_points_at, |
45ed4afa | 1190 | branch_top.buf, reflog_msg.buf, transport, !is_local); |
8434c2f1 | 1191 | |
f034d354 | 1192 | update_head(our_head_points_at, remote_head, reflog_msg.buf); |
1db4a75c | 1193 | |
72c5f883 JK |
1194 | /* |
1195 | * We want to show progress for recursive submodule clones iff | |
1196 | * we did so for the main clone. But only the transport knows | |
1197 | * the final decision for this flag, so we need to rescue the value | |
1198 | * before we free the transport. | |
1199 | */ | |
1200 | submodule_progress = transport->progress; | |
1201 | ||
6f48d39f NTND |
1202 | transport_unlock_pack(transport); |
1203 | transport_disconnect(transport); | |
1db4a75c | 1204 | |
786b150c JS |
1205 | if (option_dissociate) { |
1206 | close_all_packs(); | |
fb1d6dab | 1207 | dissociate_from_references(); |
786b150c | 1208 | } |
fb1d6dab | 1209 | |
d3b34622 | 1210 | junk_mode = JUNK_LEAVE_REPO; |
72c5f883 | 1211 | err = checkout(submodule_progress); |
8434c2f1 DB |
1212 | |
1213 | strbuf_release(&reflog_msg); | |
b5ff37ac MV |
1214 | strbuf_release(&branch_top); |
1215 | strbuf_release(&key); | |
1216 | strbuf_release(&value); | |
d3b34622 | 1217 | junk_mode = JUNK_LEAVE_ALL; |
50b67732 SB |
1218 | |
1219 | free(refspec); | |
dfa7a6c5 | 1220 | return err; |
8434c2f1 | 1221 | } |