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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 | ||
f8adbec9 | 11 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
c2e86add | 12 | #include "builtin.h" |
b2141fc1 | 13 | #include "config.h" |
697cc8ef | 14 | #include "lockfile.h" |
8434c2f1 DB |
15 | #include "parse-options.h" |
16 | #include "fetch-pack.h" | |
17 | #include "refs.h" | |
ec0cb496 | 18 | #include "refspec.h" |
cbd53a21 | 19 | #include "object-store.h" |
8434c2f1 DB |
20 | #include "tree.h" |
21 | #include "tree-walk.h" | |
22 | #include "unpack-trees.h" | |
23 | #include "transport.h" | |
24 | #include "strbuf.h" | |
25 | #include "dir.h" | |
ff7ccc8c MT |
26 | #include "dir-iterator.h" |
27 | #include "iterator.h" | |
4a16d072 | 28 | #include "sigchain.h" |
a9f2c136 | 29 | #include "branch.h" |
8ef51733 | 30 | #include "remote.h" |
dfa7a6c5 | 31 | #include "run-command.h" |
0433ad12 | 32 | #include "connected.h" |
3836d88a | 33 | #include "packfile.h" |
548719fb | 34 | #include "list-objects-filter-options.h" |
8434c2f1 DB |
35 | |
36 | /* | |
37 | * Overall FIXMEs: | |
38 | * - respect DB_ENVIRONMENT for .git/objects. | |
39 | * | |
40 | * Implementation notes: | |
41 | * - dropping use-separate-remote and no-separate-remote compatibility | |
42 | * | |
43 | */ | |
44 | static const char * const builtin_clone_usage[] = { | |
9c9b4f2f | 45 | N_("git clone [<options>] [--] <repo> [<dir>]"), |
8434c2f1 DB |
46 | NULL |
47 | }; | |
48 | ||
3e6e0edd | 49 | static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1; |
bb62e0a9 | 50 | static int option_local = -1, option_no_hardlinks, option_shared; |
0dab2468 | 51 | static int option_no_tags; |
18a74a09 | 52 | static int option_shallow_submodules; |
994c2aaf NTND |
53 | static int deepen; |
54 | static char *option_template, *option_depth, *option_since; | |
8434c2f1 | 55 | static char *option_origin = NULL; |
de9ed3ef | 56 | static char *remote_name = NULL; |
7a4ee28f | 57 | static char *option_branch = NULL; |
859e5df9 | 58 | static struct string_list option_not = STRING_LIST_INIT_NODUP; |
b57fb80a | 59 | static const char *real_git_dir; |
8434c2f1 | 60 | static char *option_upload_pack = "git-upload-pack"; |
5bd631b3 | 61 | static int option_verbosity; |
01fdc21f | 62 | static int option_progress = -1; |
d89f09c8 | 63 | static int option_sparse_checkout; |
c915f11e | 64 | static enum transport_family family; |
2721ce21 | 65 | static struct string_list option_config = STRING_LIST_INIT_NODUP; |
5e40800d | 66 | static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; |
f7415b4d | 67 | static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP; |
fb1d6dab | 68 | static int option_dissociate; |
72290d6a | 69 | static int max_jobs = -1; |
bb62e0a9 | 70 | static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP; |
548719fb | 71 | static struct list_objects_filter_options filter_options; |
6e983059 | 72 | static struct string_list server_options = STRING_LIST_INIT_NODUP; |
4c691016 | 73 | static int option_remote_submodules; |
bb62e0a9 BW |
74 | |
75 | static int recurse_submodules_cb(const struct option *opt, | |
76 | const char *arg, int unset) | |
77 | { | |
78 | if (unset) | |
79 | string_list_clear((struct string_list *)opt->value, 0); | |
80 | else if (arg) | |
81 | string_list_append((struct string_list *)opt->value, arg); | |
82 | else | |
83 | string_list_append((struct string_list *)opt->value, | |
84 | (const char *)opt->defval); | |
85 | ||
86 | return 0; | |
87 | } | |
dbc92b07 | 88 | |
8434c2f1 | 89 | static struct option builtin_clone_options[] = { |
5bd631b3 | 90 | OPT__VERBOSITY(&option_verbosity), |
01fdc21f | 91 | OPT_BOOL(0, "progress", &option_progress, |
32b77add | 92 | N_("force progress reporting")), |
d5d09d47 SB |
93 | OPT_BOOL('n', "no-checkout", &option_no_checkout, |
94 | N_("don't create a checkout")), | |
4741edd5 SB |
95 | OPT_BOOL(0, "bare", &option_bare, N_("create a bare repository")), |
96 | OPT_HIDDEN_BOOL(0, "naked", &option_bare, | |
97 | N_("create a bare repository")), | |
d5d09d47 SB |
98 | OPT_BOOL(0, "mirror", &option_mirror, |
99 | N_("create a mirror repository (implies bare)")), | |
189260b1 | 100 | OPT_BOOL('l', "local", &option_local, |
32b77add | 101 | N_("to clone from a local repository")), |
d5d09d47 | 102 | OPT_BOOL(0, "no-hardlinks", &option_no_hardlinks, |
32b77add | 103 | N_("don't use local hardlinks, always copy")), |
d5d09d47 | 104 | OPT_BOOL('s', "shared", &option_shared, |
32b77add | 105 | N_("setup as shared repository")), |
bb62e0a9 BW |
106 | { OPTION_CALLBACK, 0, "recurse-submodules", &option_recurse_submodules, |
107 | N_("pathspec"), N_("initialize submodules in the clone"), | |
108 | PARSE_OPT_OPTARG, recurse_submodules_cb, (intptr_t)"." }, | |
c28b036f | 109 | OPT_ALIAS(0, "recursive", "recurse-submodules"), |
72290d6a SB |
110 | OPT_INTEGER('j', "jobs", &max_jobs, |
111 | N_("number of submodules cloned in parallel")), | |
32b77add NTND |
112 | OPT_STRING(0, "template", &option_template, N_("template-directory"), |
113 | N_("directory from which templates will be used")), | |
5e40800d | 114 | OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"), |
8ade009c | 115 | N_("reference repository")), |
f7415b4d SB |
116 | OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference, |
117 | N_("repo"), N_("reference repository")), | |
14f8b9b4 JK |
118 | OPT_BOOL(0, "dissociate", &option_dissociate, |
119 | N_("use --reference only while cloning")), | |
32b77add NTND |
120 | OPT_STRING('o', "origin", &option_origin, N_("name"), |
121 | N_("use <name> instead of 'origin' to track upstream")), | |
122 | OPT_STRING('b', "branch", &option_branch, N_("branch"), | |
123 | N_("checkout <branch> instead of the remote's HEAD")), | |
124 | OPT_STRING('u', "upload-pack", &option_upload_pack, N_("path"), | |
125 | N_("path to git-upload-pack on the remote")), | |
126 | OPT_STRING(0, "depth", &option_depth, N_("depth"), | |
127 | N_("create a shallow clone of that depth")), | |
994c2aaf NTND |
128 | OPT_STRING(0, "shallow-since", &option_since, N_("time"), |
129 | N_("create a shallow clone since a specific time")), | |
859e5df9 | 130 | OPT_STRING_LIST(0, "shallow-exclude", &option_not, N_("revision"), |
6d873865 | 131 | N_("deepen history of shallow clone, excluding rev")), |
3e6e0edd | 132 | OPT_BOOL(0, "single-branch", &option_single_branch, |
32b77add | 133 | N_("clone only one branch, HEAD or --branch")), |
0dab2468 ÆAB |
134 | OPT_BOOL(0, "no-tags", &option_no_tags, |
135 | N_("don't clone any tags, and make later fetches not to follow them")), | |
d22eb044 SB |
136 | OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules, |
137 | N_("any cloned submodules will be shallow")), | |
32b77add NTND |
138 | OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), |
139 | N_("separate git dir from working tree")), | |
140 | OPT_STRING_LIST('c', "config", &option_config, N_("key=value"), | |
141 | N_("set config inside the new repository")), | |
6e983059 JT |
142 | OPT_STRING_LIST(0, "server-option", &server_options, |
143 | N_("server-specific"), N_("option to transmit")), | |
c915f11e EW |
144 | OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), |
145 | TRANSPORT_FAMILY_IPV4), | |
146 | OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), | |
147 | TRANSPORT_FAMILY_IPV6), | |
548719fb | 148 | OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options), |
4c691016 BA |
149 | OPT_BOOL(0, "remote-submodules", &option_remote_submodules, |
150 | N_("any cloned submodules will use their remote-tracking branch")), | |
d89f09c8 DS |
151 | OPT_BOOL(0, "sparse", &option_sparse_checkout, |
152 | N_("initialize sparse-checkout file to include only files at root")), | |
8434c2f1 DB |
153 | OPT_END() |
154 | }; | |
155 | ||
0ea68e42 | 156 | static const char *get_repo_path_1(struct strbuf *path, int *is_bundle) |
8434c2f1 | 157 | { |
b3256eb8 | 158 | static char *suffix[] = { "/.git", "", ".git/.git", ".git" }; |
8434c2f1 | 159 | static char *bundle_suffix[] = { ".bundle", "" }; |
0ea68e42 | 160 | size_t baselen = path->len; |
8434c2f1 DB |
161 | struct stat st; |
162 | int i; | |
163 | ||
164 | for (i = 0; i < ARRAY_SIZE(suffix); i++) { | |
0ea68e42 JK |
165 | strbuf_setlen(path, baselen); |
166 | strbuf_addstr(path, suffix[i]); | |
167 | if (stat(path->buf, &st)) | |
9b0ebc72 | 168 | continue; |
0ea68e42 | 169 | if (S_ISDIR(st.st_mode) && is_git_directory(path->buf)) { |
8434c2f1 | 170 | *is_bundle = 0; |
0ea68e42 | 171 | return path->buf; |
9b0ebc72 NTND |
172 | } else if (S_ISREG(st.st_mode) && st.st_size > 8) { |
173 | /* Is it a "gitfile"? */ | |
174 | char signature[8]; | |
0ea68e42 JK |
175 | const char *dst; |
176 | int len, fd = open(path->buf, O_RDONLY); | |
9b0ebc72 NTND |
177 | if (fd < 0) |
178 | continue; | |
179 | len = read_in_full(fd, signature, 8); | |
180 | close(fd); | |
181 | if (len != 8 || strncmp(signature, "gitdir: ", 8)) | |
182 | continue; | |
0ea68e42 JK |
183 | dst = read_gitfile(path->buf); |
184 | if (dst) { | |
9b0ebc72 | 185 | *is_bundle = 0; |
0ea68e42 | 186 | return dst; |
9b0ebc72 | 187 | } |
8434c2f1 DB |
188 | } |
189 | } | |
190 | ||
191 | for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { | |
0ea68e42 JK |
192 | strbuf_setlen(path, baselen); |
193 | strbuf_addstr(path, bundle_suffix[i]); | |
194 | if (!stat(path->buf, &st) && S_ISREG(st.st_mode)) { | |
8434c2f1 | 195 | *is_bundle = 1; |
0ea68e42 | 196 | return path->buf; |
8434c2f1 DB |
197 | } |
198 | } | |
199 | ||
200 | return NULL; | |
201 | } | |
202 | ||
0ea68e42 JK |
203 | static char *get_repo_path(const char *repo, int *is_bundle) |
204 | { | |
205 | struct strbuf path = STRBUF_INIT; | |
206 | const char *raw; | |
207 | char *canon; | |
208 | ||
209 | strbuf_addstr(&path, repo); | |
210 | raw = get_repo_path_1(&path, is_bundle); | |
0aaad415 | 211 | canon = raw ? absolute_pathdup(raw) : NULL; |
0ea68e42 JK |
212 | strbuf_release(&path); |
213 | return canon; | |
214 | } | |
215 | ||
6612f877 | 216 | static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) |
8434c2f1 | 217 | { |
e8959867 | 218 | const char *end = repo + strlen(repo), *start, *ptr; |
7e837c64 | 219 | size_t len; |
8a94bc7b | 220 | char *dir; |
b8c5db35 | 221 | |
e8959867 PS |
222 | /* |
223 | * Skip scheme. | |
224 | */ | |
225 | start = strstr(repo, "://"); | |
226 | if (start == NULL) | |
227 | start = repo; | |
228 | else | |
229 | start += 3; | |
230 | ||
231 | /* | |
232 | * Skip authentication data. The stripping does happen | |
233 | * greedily, such that we strip up to the last '@' inside | |
234 | * the host part. | |
235 | */ | |
236 | for (ptr = start; ptr < end && !is_dir_sep(*ptr); ptr++) { | |
237 | if (*ptr == '@') | |
238 | start = ptr + 1; | |
239 | } | |
240 | ||
b8c5db35 | 241 | /* |
8a94bc7b | 242 | * Strip trailing spaces, slashes and /.git |
b8c5db35 | 243 | */ |
e8959867 | 244 | while (start < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) |
b8c5db35 | 245 | end--; |
e8959867 | 246 | if (end - start > 5 && is_dir_sep(end[-5]) && |
b8c5db35 JS |
247 | !strncmp(end - 4, ".git", 4)) { |
248 | end -= 5; | |
e8959867 | 249 | while (start < end && is_dir_sep(end[-1])) |
b8c5db35 JS |
250 | end--; |
251 | } | |
252 | ||
253 | /* | |
92722efe PS |
254 | * Strip trailing port number if we've got only a |
255 | * hostname (that is, there is no dir separator but a | |
256 | * colon). This check is required such that we do not | |
257 | * strip URI's like '/foo/bar:2222.git', which should | |
258 | * result in a dir '2222' being guessed due to backwards | |
259 | * compatibility. | |
260 | */ | |
261 | if (memchr(start, '/', end - start) == NULL | |
262 | && memchr(start, ':', end - start) != NULL) { | |
263 | ptr = end; | |
264 | while (start < ptr && isdigit(ptr[-1]) && ptr[-1] != ':') | |
265 | ptr--; | |
266 | if (start < ptr && ptr[-1] == ':') | |
267 | end = ptr - 1; | |
268 | } | |
269 | ||
b8c5db35 | 270 | /* |
e8959867 PS |
271 | * Find last component. To remain backwards compatible we |
272 | * also regard colons as path separators, such that | |
273 | * cloning a repository 'foo:bar.git' would result in a | |
274 | * directory 'bar' being guessed. | |
b8c5db35 | 275 | */ |
e8959867 PS |
276 | ptr = end; |
277 | while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') | |
278 | ptr--; | |
279 | start = ptr; | |
b8c5db35 JS |
280 | |
281 | /* | |
282 | * Strip .{bundle,git}. | |
283 | */ | |
db2e2204 JK |
284 | len = end - start; |
285 | strip_suffix_mem(start, &len, is_bundle ? ".bundle" : ".git"); | |
8434c2f1 | 286 | |
adef9561 | 287 | if (!len || (len == 1 && *start == '/')) |
39ad4f39 NTND |
288 | die(_("No directory name could be guessed.\n" |
289 | "Please specify a directory on the command line")); | |
adef9561 | 290 | |
7e837c64 SS |
291 | if (is_bare) |
292 | dir = xstrfmt("%.*s.git", (int)len, start); | |
293 | else | |
294 | dir = xstrndup(start, len); | |
8a94bc7b AR |
295 | /* |
296 | * Replace sequences of 'control' characters and whitespace | |
297 | * with one ascii space, remove leading and trailing spaces. | |
298 | */ | |
299 | if (*dir) { | |
300 | char *out = dir; | |
301 | int prev_space = 1 /* strip leading whitespace */; | |
302 | for (end = dir; *end; ++end) { | |
303 | char ch = *end; | |
304 | if ((unsigned char)ch < '\x20') | |
305 | ch = '\x20'; | |
306 | if (isspace(ch)) { | |
307 | if (prev_space) | |
308 | continue; | |
309 | prev_space = 1; | |
310 | } else | |
311 | prev_space = 0; | |
312 | *out++ = ch; | |
313 | } | |
314 | *out = '\0'; | |
315 | if (out > dir && prev_space) | |
316 | out[-1] = '\0'; | |
6612f877 | 317 | } |
8a94bc7b | 318 | return dir; |
8434c2f1 DB |
319 | } |
320 | ||
44a68fd5 CB |
321 | static void strip_trailing_slashes(char *dir) |
322 | { | |
323 | char *end = dir + strlen(dir); | |
324 | ||
325 | while (dir < end - 1 && is_dir_sep(end[-1])) | |
326 | end--; | |
327 | *end = '\0'; | |
328 | } | |
329 | ||
dbc92b07 | 330 | static int add_one_reference(struct string_list_item *item, void *cb_data) |
8434c2f1 | 331 | { |
9eeea7d2 | 332 | struct strbuf err = STRBUF_INIT; |
f7415b4d | 333 | int *required = cb_data; |
9eeea7d2 | 334 | char *ref_git = compute_alternate_path(item->string, &err); |
8434c2f1 | 335 | |
f7415b4d SB |
336 | if (!ref_git) { |
337 | if (*required) | |
338 | die("%s", err.buf); | |
339 | else | |
340 | fprintf(stderr, | |
341 | _("info: Could not add alternate for '%s': %s\n"), | |
342 | item->string, err.buf); | |
343 | } else { | |
344 | struct strbuf sb = STRBUF_INIT; | |
345 | strbuf_addf(&sb, "%s/objects", ref_git); | |
346 | add_to_alternates_file(sb.buf); | |
347 | strbuf_release(&sb); | |
348 | } | |
606e435a | 349 | |
9eeea7d2 | 350 | strbuf_release(&err); |
f7415b4d | 351 | free(ref_git); |
dbc92b07 JH |
352 | return 0; |
353 | } | |
8434c2f1 | 354 | |
dbc92b07 JH |
355 | static void setup_reference(void) |
356 | { | |
f7415b4d SB |
357 | int required = 1; |
358 | for_each_string_list(&option_required_reference, | |
359 | add_one_reference, &required); | |
360 | required = 0; | |
361 | for_each_string_list(&option_optional_reference, | |
362 | add_one_reference, &required); | |
8434c2f1 DB |
363 | } |
364 | ||
3c1dce88 | 365 | static void copy_alternates(struct strbuf *src, const char *src_repo) |
e6baf4a1 JH |
366 | { |
367 | /* | |
368 | * Read from the source objects/info/alternates file | |
369 | * and copy the entries to corresponding file in the | |
370 | * destination repository with add_to_alternates_file(). | |
371 | * Both src and dst have "$path/objects/info/alternates". | |
372 | * | |
373 | * Instead of copying bit-for-bit from the original, | |
374 | * we need to append to existing one so that the already | |
375 | * created entry via "clone -s" is not lost, and also | |
376 | * to turn entries with paths relative to the original | |
377 | * absolute, so that they can be used in the new repository. | |
378 | */ | |
02912f47 | 379 | FILE *in = xfopen(src->buf, "r"); |
e6baf4a1 JH |
380 | struct strbuf line = STRBUF_INIT; |
381 | ||
3f163962 | 382 | while (strbuf_getline(&line, in) != EOF) { |
dcf69262 | 383 | char *abs_path; |
e6baf4a1 JH |
384 | if (!line.len || line.buf[0] == '#') |
385 | continue; | |
386 | if (is_absolute_path(line.buf)) { | |
387 | add_to_alternates_file(line.buf); | |
388 | continue; | |
389 | } | |
dcf69262 | 390 | abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf); |
22d3b8de JK |
391 | if (!normalize_path_copy(abs_path, abs_path)) |
392 | add_to_alternates_file(abs_path); | |
393 | else | |
394 | warning("skipping invalid relative alternate: %s/%s", | |
395 | src_repo, line.buf); | |
dcf69262 | 396 | free(abs_path); |
e6baf4a1 JH |
397 | } |
398 | strbuf_release(&line); | |
399 | fclose(in); | |
400 | } | |
401 | ||
14954b79 MT |
402 | static void mkdir_if_missing(const char *pathname, mode_t mode) |
403 | { | |
404 | struct stat st; | |
405 | ||
406 | if (!mkdir(pathname, mode)) | |
407 | return; | |
408 | ||
409 | if (errno != EEXIST) | |
410 | die_errno(_("failed to create directory '%s'"), pathname); | |
411 | else if (stat(pathname, &st)) | |
412 | die_errno(_("failed to stat '%s'"), pathname); | |
413 | else if (!S_ISDIR(st.st_mode)) | |
414 | die(_("%s exists and is not a directory"), pathname); | |
415 | } | |
416 | ||
e6baf4a1 | 417 | static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, |
ff7ccc8c | 418 | const char *src_repo) |
8434c2f1 | 419 | { |
8434c2f1 | 420 | int src_len, dest_len; |
ff7ccc8c MT |
421 | struct dir_iterator *iter; |
422 | int iter_status; | |
3d7747e3 | 423 | struct strbuf realpath = STRBUF_INIT; |
8434c2f1 | 424 | |
14954b79 | 425 | mkdir_if_missing(dest->buf, 0777); |
8434c2f1 | 426 | |
6f054f9f | 427 | iter = dir_iterator_begin(src->buf, DIR_ITERATOR_PEDANTIC); |
ff7ccc8c MT |
428 | |
429 | if (!iter) | |
430 | die_errno(_("failed to start iterator over '%s'"), src->buf); | |
8434c2f1 | 431 | |
b9e125e0 MV |
432 | strbuf_addch(src, '/'); |
433 | src_len = src->len; | |
434 | strbuf_addch(dest, '/'); | |
435 | dest_len = dest->len; | |
8434c2f1 | 436 | |
ff7ccc8c | 437 | while ((iter_status = dir_iterator_advance(iter)) == ITER_OK) { |
b9e125e0 | 438 | strbuf_setlen(src, src_len); |
ff7ccc8c | 439 | strbuf_addstr(src, iter->relative_path); |
b9e125e0 | 440 | strbuf_setlen(dest, dest_len); |
ff7ccc8c MT |
441 | strbuf_addstr(dest, iter->relative_path); |
442 | ||
6f054f9f TB |
443 | if (S_ISLNK(iter->st.st_mode)) |
444 | die(_("symlink '%s' exists, refusing to clone with --local"), | |
445 | iter->relative_path); | |
446 | ||
ff7ccc8c MT |
447 | if (S_ISDIR(iter->st.st_mode)) { |
448 | mkdir_if_missing(dest->buf, 0777); | |
e6baf4a1 JH |
449 | continue; |
450 | } | |
451 | ||
452 | /* Files that cannot be copied bit-for-bit... */ | |
c4d9c506 | 453 | if (!fspathcmp(iter->relative_path, "info/alternates")) { |
3c1dce88 | 454 | copy_alternates(src, src_repo); |
8434c2f1 DB |
455 | continue; |
456 | } | |
457 | ||
b9e125e0 | 458 | if (unlink(dest->buf) && errno != ENOENT) |
e84d7b74 | 459 | die_errno(_("failed to unlink '%s'"), dest->buf); |
fdabc242 | 460 | if (!option_no_hardlinks) { |
3d7747e3 AM |
461 | strbuf_realpath(&realpath, src->buf, 1); |
462 | if (!link(realpath.buf, dest->buf)) | |
fdabc242 | 463 | continue; |
189260b1 | 464 | if (option_local > 0) |
e84d7b74 | 465 | die_errno(_("failed to create link '%s'"), dest->buf); |
fdabc242 | 466 | option_no_hardlinks = 1; |
8434c2f1 | 467 | } |
f7835a25 | 468 | if (copy_file_with_time(dest->buf, src->buf, 0666)) |
e84d7b74 | 469 | die_errno(_("failed to copy file to '%s'"), dest->buf); |
8434c2f1 | 470 | } |
ff7ccc8c MT |
471 | |
472 | if (iter_status != ITER_DONE) { | |
473 | strbuf_setlen(src, src_len); | |
474 | die(_("failed to iterate over '%s'"), src->buf); | |
475 | } | |
3d7747e3 AM |
476 | |
477 | strbuf_release(&realpath); | |
8434c2f1 DB |
478 | } |
479 | ||
6f48d39f | 480 | static void clone_local(const char *src_repo, const char *dest_repo) |
8434c2f1 | 481 | { |
e6baf4a1 JH |
482 | if (option_shared) { |
483 | struct strbuf alt = STRBUF_INIT; | |
b3b05971 ES |
484 | get_common_dir(&alt, src_repo); |
485 | strbuf_addstr(&alt, "/objects"); | |
e6baf4a1 JH |
486 | add_to_alternates_file(alt.buf); |
487 | strbuf_release(&alt); | |
488 | } else { | |
489 | struct strbuf src = STRBUF_INIT; | |
490 | struct strbuf dest = STRBUF_INIT; | |
744e4697 NTND |
491 | get_common_dir(&src, src_repo); |
492 | get_common_dir(&dest, dest_repo); | |
493 | strbuf_addstr(&src, "/objects"); | |
494 | strbuf_addstr(&dest, "/objects"); | |
ff7ccc8c | 495 | copy_or_link_directory(&src, &dest, src_repo); |
b9e125e0 MV |
496 | strbuf_release(&src); |
497 | strbuf_release(&dest); | |
8434c2f1 DB |
498 | } |
499 | ||
28ba96ab | 500 | if (0 <= option_verbosity) |
68b939b2 | 501 | fprintf(stderr, _("done.\n")); |
8434c2f1 DB |
502 | } |
503 | ||
504 | static const char *junk_work_tree; | |
d45420c1 | 505 | static int junk_work_tree_flags; |
8434c2f1 | 506 | static const char *junk_git_dir; |
d45420c1 | 507 | static int junk_git_dir_flags; |
85064630 | 508 | static enum { |
d3b34622 JK |
509 | JUNK_LEAVE_NONE, |
510 | JUNK_LEAVE_REPO, | |
511 | JUNK_LEAVE_ALL | |
512 | } junk_mode = JUNK_LEAVE_NONE; | |
513 | ||
514 | static const char junk_leave_repo_msg[] = | |
515 | N_("Clone succeeded, but checkout failed.\n" | |
516 | "You can inspect what was checked out with 'git status'\n" | |
80f537f7 | 517 | "and retry with 'git restore --source=HEAD :/'\n"); |
8434c2f1 DB |
518 | |
519 | static void remove_junk(void) | |
520 | { | |
f285a2d7 | 521 | struct strbuf sb = STRBUF_INIT; |
d3b34622 JK |
522 | |
523 | switch (junk_mode) { | |
524 | case JUNK_LEAVE_REPO: | |
525 | warning("%s", _(junk_leave_repo_msg)); | |
526 | /* fall-through */ | |
527 | case JUNK_LEAVE_ALL: | |
528 | return; | |
529 | default: | |
530 | /* proceed to removal */ | |
531 | break; | |
532 | } | |
533 | ||
8434c2f1 DB |
534 | if (junk_git_dir) { |
535 | strbuf_addstr(&sb, junk_git_dir); | |
d45420c1 | 536 | remove_dir_recursively(&sb, junk_git_dir_flags); |
8434c2f1 DB |
537 | strbuf_reset(&sb); |
538 | } | |
539 | if (junk_work_tree) { | |
540 | strbuf_addstr(&sb, junk_work_tree); | |
d45420c1 | 541 | remove_dir_recursively(&sb, junk_work_tree_flags); |
8434c2f1 | 542 | } |
9c18b548 | 543 | strbuf_release(&sb); |
8434c2f1 DB |
544 | } |
545 | ||
546 | static void remove_junk_on_signal(int signo) | |
547 | { | |
548 | remove_junk(); | |
4a16d072 | 549 | sigchain_pop(signo); |
8434c2f1 DB |
550 | raise(signo); |
551 | } | |
552 | ||
9e585046 NTND |
553 | static struct ref *find_remote_branch(const struct ref *refs, const char *branch) |
554 | { | |
555 | struct ref *ref; | |
556 | struct strbuf head = STRBUF_INIT; | |
557 | strbuf_addstr(&head, "refs/heads/"); | |
558 | strbuf_addstr(&head, branch); | |
559 | ref = find_ref_by_name(refs, head.buf); | |
560 | strbuf_release(&head); | |
5a7d5b68 NTND |
561 | |
562 | if (ref) | |
563 | return ref; | |
564 | ||
565 | strbuf_addstr(&head, "refs/tags/"); | |
566 | strbuf_addstr(&head, branch); | |
567 | ref = find_ref_by_name(refs, head.buf); | |
568 | strbuf_release(&head); | |
569 | ||
9e585046 NTND |
570 | return ref; |
571 | } | |
572 | ||
5bdc32d3 | 573 | static struct ref *wanted_peer_refs(const struct ref *refs, |
515be833 | 574 | struct refspec *refspec) |
8434c2f1 | 575 | { |
c1921c18 JK |
576 | struct ref *head = copy_ref(find_ref_by_name(refs, "HEAD")); |
577 | struct ref *local_refs = head; | |
578 | struct ref **tail = head ? &head->next : &local_refs; | |
8434c2f1 | 579 | |
3e6e0edd NTND |
580 | if (option_single_branch) { |
581 | struct ref *remote_head = NULL; | |
582 | ||
583 | if (!option_branch) | |
584 | remote_head = guess_remote_head(head, refs, 0); | |
0ec4b165 NTND |
585 | else { |
586 | local_refs = NULL; | |
587 | tail = &local_refs; | |
588 | remote_head = copy_ref(find_remote_branch(refs, option_branch)); | |
589 | } | |
3e6e0edd NTND |
590 | |
591 | if (!remote_head && option_branch) | |
592 | warning(_("Could not find remote branch %s to clone."), | |
593 | option_branch); | |
5a7d5b68 | 594 | else { |
515be833 SG |
595 | int i; |
596 | for (i = 0; i < refspec->nr; i++) | |
597 | get_fetch_map(remote_head, &refspec->items[i], | |
598 | &tail, 0); | |
5a7d5b68 NTND |
599 | |
600 | /* if --branch=tag, pull the requested tag explicitly */ | |
601 | get_fetch_map(remote_head, tag_refspec, &tail, 0); | |
602 | } | |
515be833 SG |
603 | } else { |
604 | int i; | |
605 | for (i = 0; i < refspec->nr; i++) | |
606 | get_fetch_map(refs, &refspec->items[i], &tail, 0); | |
607 | } | |
3e6e0edd | 608 | |
0dab2468 | 609 | if (!option_mirror && !option_single_branch && !option_no_tags) |
468386a9 | 610 | get_fetch_map(refs, tag_refspec, &tail, 0); |
8434c2f1 | 611 | |
5bdc32d3 NP |
612 | return local_refs; |
613 | } | |
614 | ||
615 | static void write_remote_refs(const struct ref *local_refs) | |
616 | { | |
617 | const struct ref *r; | |
618 | ||
58f233ce MH |
619 | struct ref_transaction *t; |
620 | struct strbuf err = STRBUF_INIT; | |
621 | ||
622 | t = ref_transaction_begin(&err); | |
623 | if (!t) | |
624 | die("%s", err.buf); | |
9f69d297 | 625 | |
c1921c18 JK |
626 | for (r = local_refs; r; r = r->next) { |
627 | if (!r->peer_ref) | |
628 | continue; | |
89f3bbdd | 629 | if (ref_transaction_create(t, r->peer_ref->name, &r->old_oid, |
58f233ce MH |
630 | 0, NULL, &err)) |
631 | die("%s", err.buf); | |
c1921c18 | 632 | } |
3e8aded2 | 633 | |
58f233ce MH |
634 | if (initial_ref_transaction_commit(t, &err)) |
635 | die("%s", err.buf); | |
636 | ||
637 | strbuf_release(&err); | |
638 | ref_transaction_free(t); | |
8434c2f1 DB |
639 | } |
640 | ||
3e6e0edd NTND |
641 | static void write_followtags(const struct ref *refs, const char *msg) |
642 | { | |
643 | const struct ref *ref; | |
644 | for (ref = refs; ref; ref = ref->next) { | |
59556548 | 645 | if (!starts_with(ref->name, "refs/tags/")) |
3e6e0edd | 646 | continue; |
59556548 | 647 | if (ends_with(ref->name, "^{}")) |
3e6e0edd | 648 | continue; |
167a575e JK |
649 | if (!has_object_file_with_flags(&ref->old_oid, |
650 | OBJECT_INFO_QUICK | | |
651 | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
3e6e0edd | 652 | continue; |
ae077771 | 653 | update_ref(msg, ref->name, &ref->old_oid, NULL, 0, |
654 | UPDATE_REFS_DIE_ON_ERR); | |
3e6e0edd NTND |
655 | } |
656 | } | |
657 | ||
6ccac9ee | 658 | static int iterate_ref_map(void *cb_data, struct object_id *oid) |
0433ad12 JK |
659 | { |
660 | struct ref **rm = cb_data; | |
661 | struct ref *ref = *rm; | |
662 | ||
663 | /* | |
664 | * Skip anything missing a peer_ref, which we are not | |
665 | * actually going to write a ref for. | |
666 | */ | |
667 | while (ref && !ref->peer_ref) | |
668 | ref = ref->next; | |
669 | /* Returning -1 notes "end of list" to the caller. */ | |
670 | if (!ref) | |
671 | return -1; | |
672 | ||
6ccac9ee | 673 | oidcpy(oid, &ref->old_oid); |
0433ad12 JK |
674 | *rm = ref->next; |
675 | return 0; | |
676 | } | |
677 | ||
960b7d1c NTND |
678 | static void update_remote_refs(const struct ref *refs, |
679 | const struct ref *mapped_refs, | |
680 | const struct ref *remote_head_points_at, | |
681 | const char *branch_top, | |
c6807a40 | 682 | const char *msg, |
45ed4afa | 683 | struct transport *transport, |
2b98478c | 684 | int check_connectivity) |
960b7d1c | 685 | { |
0433ad12 JK |
686 | const struct ref *rm = mapped_refs; |
687 | ||
125a05fd | 688 | if (check_connectivity) { |
7043c707 JK |
689 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
690 | ||
691 | opt.transport = transport; | |
38e590ea | 692 | opt.progress = transport->progress; |
7043c707 | 693 | |
7043c707 | 694 | if (check_connected(iterate_ref_map, &rm, &opt)) |
125a05fd JK |
695 | die(_("remote did not send all necessary objects")); |
696 | } | |
0433ad12 | 697 | |
960b7d1c | 698 | if (refs) { |
960b7d1c | 699 | write_remote_refs(mapped_refs); |
0dab2468 | 700 | if (option_single_branch && !option_no_tags) |
960b7d1c NTND |
701 | write_followtags(refs, msg); |
702 | } | |
703 | ||
704 | if (remote_head_points_at && !option_bare) { | |
705 | struct strbuf head_ref = STRBUF_INIT; | |
706 | strbuf_addstr(&head_ref, branch_top); | |
707 | strbuf_addstr(&head_ref, "HEAD"); | |
4be49d75 JK |
708 | if (create_symref(head_ref.buf, |
709 | remote_head_points_at->peer_ref->name, | |
710 | msg) < 0) | |
39ad4f39 | 711 | die(_("unable to update %s"), head_ref.buf); |
4be49d75 | 712 | strbuf_release(&head_ref); |
960b7d1c NTND |
713 | } |
714 | } | |
715 | ||
f034d354 NTND |
716 | static void update_head(const struct ref *our, const struct ref *remote, |
717 | const char *msg) | |
718 | { | |
cf4fff57 JK |
719 | const char *head; |
720 | if (our && skip_prefix(our->name, "refs/heads/", &head)) { | |
f034d354 | 721 | /* Local default branch link */ |
4be49d75 | 722 | if (create_symref("HEAD", our->name, NULL) < 0) |
39ad4f39 | 723 | die(_("unable to update HEAD")); |
f034d354 | 724 | if (!option_bare) { |
ae077771 | 725 | update_ref(msg, "HEAD", &our->old_oid, NULL, 0, |
f4124112 | 726 | UPDATE_REFS_DIE_ON_ERR); |
75ca3906 | 727 | install_branch_config(0, head, remote_name, our->name); |
f034d354 | 728 | } |
5a7d5b68 | 729 | } else if (our) { |
2122f675 SB |
730 | struct commit *c = lookup_commit_reference(the_repository, |
731 | &our->old_oid); | |
5a7d5b68 | 732 | /* --branch specifies a non-branch (i.e. tags), detach HEAD */ |
91774afc | 733 | update_ref(msg, "HEAD", &c->object.oid, NULL, REF_NO_DEREF, |
ae077771 | 734 | UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
735 | } else if (remote) { |
736 | /* | |
737 | * We know remote HEAD points to a non-branch, or | |
920b691f | 738 | * HEAD points to a branch but we don't know which one. |
f034d354 NTND |
739 | * Detach HEAD in all these cases. |
740 | */ | |
91774afc | 741 | update_ref(msg, "HEAD", &remote->old_oid, NULL, REF_NO_DEREF, |
ae077771 | 742 | UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
743 | } |
744 | } | |
745 | ||
d89f09c8 DS |
746 | static int git_sparse_checkout_init(const char *repo) |
747 | { | |
22f9b7f3 | 748 | struct strvec argv = STRVEC_INIT; |
d89f09c8 | 749 | int result = 0; |
22f9b7f3 | 750 | strvec_pushl(&argv, "-C", repo, "sparse-checkout", "init", NULL); |
d89f09c8 DS |
751 | |
752 | /* | |
753 | * We must apply the setting in the current process | |
754 | * for the later checkout to use the sparse-checkout file. | |
755 | */ | |
756 | core_apply_sparse_checkout = 1; | |
757 | ||
d70a9eb6 | 758 | if (run_command_v_opt(argv.v, RUN_GIT_CMD)) { |
d89f09c8 DS |
759 | error(_("failed to initialize sparse-checkout")); |
760 | result = 1; | |
761 | } | |
762 | ||
22f9b7f3 | 763 | strvec_clear(&argv); |
d89f09c8 DS |
764 | return result; |
765 | } | |
766 | ||
72c5f883 | 767 | static int checkout(int submodule_progress) |
c39852c1 | 768 | { |
ddc2cc64 | 769 | struct object_id oid; |
c39852c1 | 770 | char *head; |
837e34eb | 771 | struct lock_file lock_file = LOCK_INIT; |
c39852c1 NTND |
772 | struct unpack_trees_options opts; |
773 | struct tree *tree; | |
774 | struct tree_desc t; | |
03b86647 | 775 | int err = 0; |
c39852c1 NTND |
776 | |
777 | if (option_no_checkout) | |
778 | return 0; | |
779 | ||
0f2dc722 | 780 | head = resolve_refdup("HEAD", RESOLVE_REF_READING, &oid, NULL); |
c39852c1 NTND |
781 | if (!head) { |
782 | warning(_("remote HEAD refers to nonexistent ref, " | |
783 | "unable to checkout.\n")); | |
784 | return 0; | |
785 | } | |
2857093b NTND |
786 | if (!strcmp(head, "HEAD")) { |
787 | if (advice_detached_head) | |
ddc2cc64 | 788 | detach_advice(oid_to_hex(&oid)); |
dfc8cdc6 | 789 | FREE_AND_NULL(head); |
2857093b | 790 | } else { |
59556548 | 791 | if (!starts_with(head, "refs/heads/")) |
c39852c1 NTND |
792 | die(_("HEAD not found below refs/heads!")); |
793 | } | |
c39852c1 NTND |
794 | |
795 | /* We need to be in the new work tree for the checkout */ | |
796 | setup_work_tree(); | |
797 | ||
837e34eb | 798 | hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); |
c39852c1 NTND |
799 | |
800 | memset(&opts, 0, sizeof opts); | |
801 | opts.update = 1; | |
802 | opts.merge = 1; | |
b878579a | 803 | opts.clone = 1; |
c39852c1 | 804 | opts.fn = oneway_merge; |
8f63da13 | 805 | opts.verbose_update = (option_verbosity >= 0); |
c39852c1 NTND |
806 | opts.src_index = &the_index; |
807 | opts.dst_index = &the_index; | |
dfc8cdc6 | 808 | init_checkout_metadata(&opts.meta, head, &oid, NULL); |
c39852c1 | 809 | |
a9dbc179 | 810 | tree = parse_tree_indirect(&oid); |
c39852c1 NTND |
811 | parse_tree(tree); |
812 | init_tree_desc(&t, tree->buffer, tree->size); | |
0aac7bb2 JK |
813 | if (unpack_trees(1, &t, &opts) < 0) |
814 | die(_("unable to checkout working tree")); | |
c39852c1 | 815 | |
dfc8cdc6 | 816 | free(head); |
817 | ||
837e34eb | 818 | if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) |
c39852c1 NTND |
819 | die(_("unable to write new index file")); |
820 | ||
8d4d86b0 | 821 | err |= run_hook_le(NULL, "post-checkout", oid_to_hex(&null_oid), |
ddc2cc64 | 822 | oid_to_hex(&oid), "1", NULL); |
c39852c1 | 823 | |
bb62e0a9 | 824 | if (!err && (option_recurse_submodules.nr > 0)) { |
22f9b7f3 JK |
825 | struct strvec args = STRVEC_INIT; |
826 | strvec_pushl(&args, "submodule", "update", "--require-init", "--recursive", NULL); | |
72290d6a | 827 | |
18a74a09 | 828 | if (option_shallow_submodules == 1) |
22f9b7f3 | 829 | strvec_push(&args, "--depth=1"); |
d22eb044 | 830 | |
72290d6a | 831 | if (max_jobs != -1) |
22f9b7f3 | 832 | strvec_pushf(&args, "--jobs=%d", max_jobs); |
72290d6a | 833 | |
72c5f883 | 834 | if (submodule_progress) |
22f9b7f3 | 835 | strvec_push(&args, "--progress"); |
72c5f883 | 836 | |
03c004c5 | 837 | if (option_verbosity < 0) |
22f9b7f3 | 838 | strvec_push(&args, "--quiet"); |
03c004c5 | 839 | |
4c691016 | 840 | if (option_remote_submodules) { |
22f9b7f3 JK |
841 | strvec_push(&args, "--remote"); |
842 | strvec_push(&args, "--no-fetch"); | |
4c691016 BA |
843 | } |
844 | ||
132f600b | 845 | if (option_single_branch >= 0) |
22f9b7f3 | 846 | strvec_push(&args, option_single_branch ? |
132f600b ES |
847 | "--single-branch" : |
848 | "--no-single-branch"); | |
849 | ||
d70a9eb6 | 850 | err = run_command_v_opt(args.v, RUN_GIT_CMD); |
22f9b7f3 | 851 | strvec_clear(&args); |
72290d6a | 852 | } |
c39852c1 NTND |
853 | |
854 | return err; | |
855 | } | |
856 | ||
552955ed SB |
857 | static int git_clone_config(const char *k, const char *v, void *cb) |
858 | { | |
de9ed3ef SB |
859 | if (!strcmp(k, "clone.defaultremotename")) { |
860 | free(remote_name); | |
861 | remote_name = xstrdup(v); | |
862 | } | |
552955ed SB |
863 | return git_default_config(k, v, cb); |
864 | } | |
865 | ||
84054f79 JK |
866 | static int write_one_config(const char *key, const char *value, void *data) |
867 | { | |
552955ed SB |
868 | /* |
869 | * give git_clone_config a chance to write config values back to the | |
870 | * environment, since git_config_set_multivar_gently only deals with | |
871 | * config-file writes | |
872 | */ | |
873 | int apply_failed = git_clone_config(key, value, data); | |
874 | if (apply_failed) | |
875 | return apply_failed; | |
876 | ||
db4eca1f JN |
877 | return git_config_set_multivar_gently(key, |
878 | value ? value : "true", | |
879 | CONFIG_REGEX_NONE, 0); | |
84054f79 JK |
880 | } |
881 | ||
882 | static void write_config(struct string_list *config) | |
883 | { | |
884 | int i; | |
885 | ||
886 | for (i = 0; i < config->nr; i++) { | |
887 | if (git_config_parse_parameter(config->items[i].string, | |
888 | write_one_config, NULL) < 0) | |
39ad4f39 | 889 | die(_("unable to write parameters to config file")); |
84054f79 JK |
890 | } |
891 | } | |
892 | ||
24d36f14 DA |
893 | static void write_refspec_config(const char *src_ref_prefix, |
894 | const struct ref *our_head_points_at, | |
895 | const struct ref *remote_head_points_at, | |
896 | struct strbuf *branch_top) | |
31b808a0 RT |
897 | { |
898 | struct strbuf key = STRBUF_INIT; | |
899 | struct strbuf value = STRBUF_INIT; | |
900 | ||
901 | if (option_mirror || !option_bare) { | |
902 | if (option_single_branch && !option_mirror) { | |
903 | if (option_branch) { | |
60a5f5fc | 904 | if (starts_with(our_head_points_at->name, "refs/tags/")) |
31b808a0 RT |
905 | strbuf_addf(&value, "+%s:%s", our_head_points_at->name, |
906 | our_head_points_at->name); | |
907 | else | |
908 | strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, | |
909 | branch_top->buf, option_branch); | |
910 | } else if (remote_head_points_at) { | |
cf4fff57 JK |
911 | const char *head = remote_head_points_at->name; |
912 | if (!skip_prefix(head, "refs/heads/", &head)) | |
033abf97 | 913 | BUG("remote HEAD points at non-head?"); |
cf4fff57 | 914 | |
31b808a0 | 915 | strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, |
cf4fff57 | 916 | branch_top->buf, head); |
31b808a0 RT |
917 | } |
918 | /* | |
919 | * otherwise, the next "git fetch" will | |
920 | * simply fetch from HEAD without updating | |
d6ac1d21 | 921 | * any remote-tracking branch, which is what |
31b808a0 RT |
922 | * we want. |
923 | */ | |
924 | } else { | |
925 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf); | |
926 | } | |
927 | /* Configure the remote */ | |
928 | if (value.len) { | |
75ca3906 | 929 | strbuf_addf(&key, "remote.%s.fetch", remote_name); |
31b808a0 RT |
930 | git_config_set_multivar(key.buf, value.buf, "^$", 0); |
931 | strbuf_reset(&key); | |
932 | ||
933 | if (option_mirror) { | |
75ca3906 | 934 | strbuf_addf(&key, "remote.%s.mirror", remote_name); |
31b808a0 RT |
935 | git_config_set(key.buf, "true"); |
936 | strbuf_reset(&key); | |
937 | } | |
938 | } | |
939 | } | |
940 | ||
941 | strbuf_release(&key); | |
942 | strbuf_release(&value); | |
943 | } | |
944 | ||
fb1d6dab JH |
945 | static void dissociate_from_references(void) |
946 | { | |
947 | static const char* argv[] = { "repack", "-a", "-d", NULL }; | |
0181681e | 948 | char *alternates = git_pathdup("objects/info/alternates"); |
fb1d6dab | 949 | |
0181681e AR |
950 | if (!access(alternates, F_OK)) { |
951 | if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) | |
952 | die(_("cannot repack to clean up")); | |
953 | if (unlink(alternates) && errno != ENOENT) | |
954 | die_errno(_("cannot unlink temporary alternates file")); | |
955 | } | |
956 | free(alternates); | |
fb1d6dab JH |
957 | } |
958 | ||
6c020421 | 959 | static int path_exists(const char *path) |
f9e377ad JK |
960 | { |
961 | struct stat sb; | |
962 | return !stat(path, &sb); | |
963 | } | |
964 | ||
8434c2f1 DB |
965 | int cmd_clone(int argc, const char **argv, const char *prefix) |
966 | { | |
24c61c44 | 967 | int is_bundle = 0, is_local; |
8434c2f1 | 968 | const char *repo_name, *repo, *work_tree, *git_dir; |
46da295a | 969 | char *path, *dir, *display_repo = NULL; |
dfaa209a | 970 | int dest_exists, real_dest_exists = 0; |
37148311 | 971 | const struct ref *refs, *remote_head; |
7a4ee28f JK |
972 | const struct ref *remote_head_points_at; |
973 | const struct ref *our_head_points_at; | |
37148311 | 974 | struct ref *mapped_refs; |
90498161 | 975 | const struct ref *ref; |
3e42cb3b | 976 | struct strbuf key = STRBUF_INIT; |
b5ff37ac | 977 | struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; |
1db4a75c | 978 | struct transport *transport = NULL; |
9e585046 | 979 | const char *src_ref_prefix = "refs/heads/"; |
6f48d39f | 980 | struct remote *remote; |
90498161 | 981 | int err = 0, complete_refs_before_fetch = 1; |
72c5f883 | 982 | int submodule_progress; |
8434c2f1 | 983 | |
22f9b7f3 | 984 | struct strvec ref_prefixes = STRVEC_INIT; |
8434c2f1 | 985 | |
bbc30f99 | 986 | packet_trace_identity("clone"); |
552955ed SB |
987 | |
988 | git_config(git_clone_config, NULL); | |
989 | ||
37782920 | 990 | argc = parse_options(argc, argv, prefix, builtin_clone_options, |
8434c2f1 DB |
991 | builtin_clone_usage, 0); |
992 | ||
d52dc4b1 | 993 | if (argc > 2) |
e84d7b74 | 994 | usage_msg_opt(_("Too many arguments."), |
d52dc4b1 JN |
995 | builtin_clone_usage, builtin_clone_options); |
996 | ||
8434c2f1 | 997 | if (argc == 0) |
e84d7b74 | 998 | usage_msg_opt(_("You must specify a repository to clone."), |
d52dc4b1 | 999 | builtin_clone_usage, builtin_clone_options); |
8434c2f1 | 1000 | |
859e5df9 | 1001 | if (option_depth || option_since || option_not.nr) |
994c2aaf | 1002 | deepen = 1; |
3e6e0edd | 1003 | if (option_single_branch == -1) |
994c2aaf | 1004 | option_single_branch = deepen ? 1 : 0; |
3e6e0edd | 1005 | |
bc699afc JS |
1006 | if (option_mirror) |
1007 | option_bare = 1; | |
1008 | ||
8434c2f1 DB |
1009 | if (option_bare) { |
1010 | if (option_origin) | |
e84d7b74 | 1011 | die(_("--bare and --origin %s options are incompatible."), |
8434c2f1 | 1012 | option_origin); |
95b63f1e NTND |
1013 | if (real_git_dir) |
1014 | die(_("--bare and --separate-git-dir are incompatible.")); | |
8434c2f1 | 1015 | option_no_checkout = 1; |
8434c2f1 DB |
1016 | } |
1017 | ||
8434c2f1 DB |
1018 | repo_name = argv[0]; |
1019 | ||
1020 | path = get_repo_path(repo_name, &is_bundle); | |
1021 | if (path) | |
0aaad415 | 1022 | repo = absolute_pathdup(repo_name); |
46da295a | 1023 | else if (strchr(repo_name, ':')) { |
8434c2f1 | 1024 | repo = repo_name; |
46da295a JS |
1025 | display_repo = transport_anonymize_url(repo); |
1026 | } else | |
1027 | die(_("repository '%s' does not exist"), repo_name); | |
8434c2f1 | 1028 | |
5594bcad NTND |
1029 | /* no need to be strict, transport_set_option() will validate it again */ |
1030 | if (option_depth && atoi(option_depth) < 1) | |
1031 | die(_("depth %s is not a positive number"), option_depth); | |
1032 | ||
8434c2f1 DB |
1033 | if (argc == 2) |
1034 | dir = xstrdup(argv[1]); | |
1035 | else | |
6612f877 | 1036 | dir = guess_dir_name(repo_name, is_bundle, option_bare); |
44a68fd5 | 1037 | strip_trailing_slashes(dir); |
8434c2f1 | 1038 | |
6c020421 | 1039 | dest_exists = path_exists(dir); |
55892d23 | 1040 | if (dest_exists && !is_empty_dir(dir)) |
e84d7b74 ÆAB |
1041 | die(_("destination path '%s' already exists and is not " |
1042 | "an empty directory."), dir); | |
8434c2f1 | 1043 | |
dfaa209a BW |
1044 | if (real_git_dir) { |
1045 | real_dest_exists = path_exists(real_git_dir); | |
1046 | if (real_dest_exists && !is_empty_dir(real_git_dir)) | |
1047 | die(_("repository path '%s' already exists and is not " | |
1048 | "an empty directory."), real_git_dir); | |
1049 | } | |
1050 | ||
1051 | ||
46da295a JS |
1052 | strbuf_addf(&reflog_msg, "clone: from %s", |
1053 | display_repo ? display_repo : repo); | |
1054 | free(display_repo); | |
8434c2f1 DB |
1055 | |
1056 | if (option_bare) | |
1057 | work_tree = NULL; | |
1058 | else { | |
1059 | work_tree = getenv("GIT_WORK_TREE"); | |
6c020421 | 1060 | if (work_tree && path_exists(work_tree)) |
e84d7b74 | 1061 | die(_("working tree '%s' already exists."), work_tree); |
8434c2f1 DB |
1062 | } |
1063 | ||
1064 | if (option_bare || work_tree) | |
1065 | git_dir = xstrdup(dir); | |
1066 | else { | |
1067 | work_tree = dir; | |
4e2d094d | 1068 | git_dir = mkpathdup("%s/.git", dir); |
8434c2f1 DB |
1069 | } |
1070 | ||
ee0e3872 JK |
1071 | atexit(remove_junk); |
1072 | sigchain_push_common(remove_junk_on_signal); | |
1073 | ||
8434c2f1 | 1074 | if (!option_bare) { |
8e21d63b | 1075 | if (safe_create_leading_directories_const(work_tree) < 0) |
e84d7b74 | 1076 | die_errno(_("could not create leading directories of '%s'"), |
d824cbba | 1077 | work_tree); |
d45420c1 JK |
1078 | if (dest_exists) |
1079 | junk_work_tree_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
1080 | else if (mkdir(work_tree, 0777)) | |
16eff6c0 | 1081 | die_errno(_("could not create work tree dir '%s'"), |
d824cbba | 1082 | work_tree); |
ee0e3872 | 1083 | junk_work_tree = work_tree; |
8434c2f1 DB |
1084 | set_git_work_tree(work_tree); |
1085 | } | |
8434c2f1 | 1086 | |
d45420c1 | 1087 | if (real_git_dir) { |
dfaa209a | 1088 | if (real_dest_exists) |
d45420c1 JK |
1089 | junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; |
1090 | junk_git_dir = real_git_dir; | |
1091 | } else { | |
1092 | if (dest_exists) | |
1093 | junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
1094 | junk_git_dir = git_dir; | |
1095 | } | |
8e21d63b | 1096 | if (safe_create_leading_directories_const(git_dir) < 0) |
e84d7b74 | 1097 | die(_("could not create leading directories of '%s'"), git_dir); |
b57fb80a | 1098 | |
3781fcce ÆAB |
1099 | if (0 <= option_verbosity) { |
1100 | if (option_bare) | |
68b939b2 | 1101 | fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); |
3781fcce | 1102 | else |
68b939b2 | 1103 | fprintf(stderr, _("Cloning into '%s'...\n"), dir); |
3781fcce | 1104 | } |
31224cbd | 1105 | |
bb62e0a9 BW |
1106 | if (option_recurse_submodules.nr > 0) { |
1107 | struct string_list_item *item; | |
1108 | struct strbuf sb = STRBUF_INIT; | |
1109 | ||
1110 | /* remove duplicates */ | |
1111 | string_list_sort(&option_recurse_submodules); | |
1112 | string_list_remove_duplicates(&option_recurse_submodules, 0); | |
1113 | ||
1114 | /* | |
1115 | * NEEDSWORK: In a multi-working-tree world, this needs to be | |
1116 | * set in the per-worktree config. | |
1117 | */ | |
1118 | for_each_string_list_item(item, &option_recurse_submodules) { | |
1119 | strbuf_addf(&sb, "submodule.active=%s", | |
1120 | item->string); | |
1121 | string_list_append(&option_config, | |
1122 | strbuf_detach(&sb, NULL)); | |
1123 | } | |
1124 | ||
31224cbd SB |
1125 | if (option_required_reference.nr && |
1126 | option_optional_reference.nr) | |
1127 | die(_("clone --recursive is not compatible with " | |
1128 | "both --reference and --reference-if-able")); | |
1129 | else if (option_required_reference.nr) { | |
1130 | string_list_append(&option_config, | |
1131 | "submodule.alternateLocation=superproject"); | |
1132 | string_list_append(&option_config, | |
1133 | "submodule.alternateErrorStrategy=die"); | |
1134 | } else if (option_optional_reference.nr) { | |
1135 | string_list_append(&option_config, | |
1136 | "submodule.alternateLocation=superproject"); | |
1137 | string_list_append(&option_config, | |
1138 | "submodule.alternateErrorStrategy=info"); | |
1139 | } | |
1140 | } | |
1141 | ||
32ba12da JS |
1142 | init_db(git_dir, real_git_dir, option_template, GIT_HASH_UNKNOWN, NULL, |
1143 | INIT_DB_QUIET); | |
33158701 NTND |
1144 | |
1145 | if (real_git_dir) | |
1146 | git_dir = real_git_dir; | |
1147 | ||
552955ed SB |
1148 | /* |
1149 | * additional config can be injected with -c, make sure it's included | |
1150 | * after init_db, which clears the entire config environment. | |
1151 | */ | |
84054f79 | 1152 | write_config(&option_config); |
8434c2f1 | 1153 | |
552955ed SB |
1154 | /* |
1155 | * re-read config after init_db and write_config to pick up any config | |
1156 | * injected by --template and --config, respectively. | |
1157 | */ | |
1158 | git_config(git_clone_config, NULL); | |
8434c2f1 | 1159 | |
de9ed3ef SB |
1160 | /* |
1161 | * apply the remote name provided by --origin only after this second | |
1162 | * call to git_config, to ensure it overrides all config-based values. | |
1163 | */ | |
1164 | if (option_origin != NULL) | |
1165 | remote_name = xstrdup(option_origin); | |
1166 | ||
1167 | if (remote_name == NULL) | |
1168 | remote_name = xstrdup("origin"); | |
1169 | ||
1170 | if (!valid_remote_name(remote_name)) | |
1171 | die(_("'%s' is not a valid remote name"), remote_name); | |
8434c2f1 DB |
1172 | |
1173 | if (option_bare) { | |
bc699afc JS |
1174 | if (option_mirror) |
1175 | src_ref_prefix = "refs/"; | |
b5ff37ac | 1176 | strbuf_addstr(&branch_top, src_ref_prefix); |
8434c2f1 DB |
1177 | |
1178 | git_config_set("core.bare", "true"); | |
1179 | } else { | |
75ca3906 | 1180 | strbuf_addf(&branch_top, "refs/remotes/%s/", remote_name); |
bc699afc | 1181 | } |
8434c2f1 | 1182 | |
75ca3906 | 1183 | strbuf_addf(&key, "remote.%s.url", remote_name); |
df61c889 SR |
1184 | git_config_set(key.buf, repo); |
1185 | strbuf_reset(&key); | |
1186 | ||
0dab2468 | 1187 | if (option_no_tags) { |
75ca3906 | 1188 | strbuf_addf(&key, "remote.%s.tagOpt", remote_name); |
0dab2468 ÆAB |
1189 | git_config_set(key.buf, "--no-tags"); |
1190 | strbuf_reset(&key); | |
1191 | } | |
1192 | ||
f7415b4d | 1193 | if (option_required_reference.nr || option_optional_reference.nr) |
dbc92b07 | 1194 | setup_reference(); |
766ac6a6 | 1195 | |
47dbf10d | 1196 | if (option_sparse_checkout && git_sparse_checkout_init(dir)) |
d89f09c8 DS |
1197 | return 1; |
1198 | ||
75ca3906 | 1199 | remote = remote_get(remote_name); |
689f0396 | 1200 | |
1af8b8c0 RS |
1201 | refspec_appendf(&remote->fetch, "+%s*:%s*", src_ref_prefix, |
1202 | branch_top.buf); | |
8434c2f1 | 1203 | |
6f48d39f | 1204 | transport = transport_get(remote, remote->url[0]); |
822f0c4f | 1205 | transport_set_verbosity(transport, option_verbosity, option_progress); |
c915f11e | 1206 | transport->family = family; |
822f0c4f | 1207 | |
f38aa83f MB |
1208 | path = get_repo_path(remote->url[0], &is_bundle); |
1209 | is_local = option_local != 0 && path && !is_bundle; | |
1210 | if (is_local) { | |
1211 | if (option_depth) | |
1212 | warning(_("--depth is ignored in local clones; use file:// instead.")); | |
994c2aaf NTND |
1213 | if (option_since) |
1214 | warning(_("--shallow-since is ignored in local clones; use file:// instead.")); | |
859e5df9 NTND |
1215 | if (option_not.nr) |
1216 | warning(_("--shallow-exclude is ignored in local clones; use file:// instead.")); | |
548719fb JT |
1217 | if (filter_options.choice) |
1218 | warning(_("--filter is ignored in local clones; use file:// instead.")); | |
f38aa83f MB |
1219 | if (!access(mkpath("%s/shallow", path), F_OK)) { |
1220 | if (option_local > 0) | |
1221 | warning(_("source repository is shallow, ignoring --local")); | |
1222 | is_local = 0; | |
1223 | } | |
1224 | } | |
1225 | if (option_local > 0 && !is_local) | |
1226 | warning(_("--local is ignored")); | |
beea4152 | 1227 | transport->cloning = 1; |
8434c2f1 | 1228 | |
643f918d | 1229 | transport_set_option(transport, TRANS_OPT_KEEP, "yes"); |
8434c2f1 | 1230 | |
643f918d JK |
1231 | if (option_depth) |
1232 | transport_set_option(transport, TRANS_OPT_DEPTH, | |
1233 | option_depth); | |
994c2aaf NTND |
1234 | if (option_since) |
1235 | transport_set_option(transport, TRANS_OPT_DEEPEN_SINCE, | |
1236 | option_since); | |
859e5df9 NTND |
1237 | if (option_not.nr) |
1238 | transport_set_option(transport, TRANS_OPT_DEEPEN_NOT, | |
1239 | (const char *)&option_not); | |
643f918d JK |
1240 | if (option_single_branch) |
1241 | transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); | |
8434c2f1 | 1242 | |
643f918d JK |
1243 | if (option_upload_pack) |
1244 | transport_set_option(transport, TRANS_OPT_UPLOADPACK, | |
1245 | option_upload_pack); | |
c6807a40 | 1246 | |
6e983059 JT |
1247 | if (server_options.nr) |
1248 | transport->server_options = &server_options; | |
1249 | ||
548719fb | 1250 | if (filter_options.choice) { |
cf9ceb5a MD |
1251 | const char *spec = |
1252 | expand_list_objects_filter_spec(&filter_options); | |
548719fb | 1253 | transport_set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, |
cf9ceb5a | 1254 | spec); |
548719fb JT |
1255 | transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1"); |
1256 | } | |
1257 | ||
1258 | if (transport->smart_options && !deepen && !filter_options.choice) | |
643f918d | 1259 | transport->smart_options->check_self_contained_and_connected = 1; |
8434c2f1 | 1260 | |
402c47d9 | 1261 | |
22f9b7f3 | 1262 | strvec_push(&ref_prefixes, "HEAD"); |
515be833 | 1263 | refspec_ref_prefixes(&remote->fetch, &ref_prefixes); |
402c47d9 BW |
1264 | if (option_branch) |
1265 | expand_ref_prefix(&ref_prefixes, option_branch); | |
1266 | if (!option_no_tags) | |
22f9b7f3 | 1267 | strvec_push(&ref_prefixes, "refs/tags/"); |
402c47d9 BW |
1268 | |
1269 | refs = transport_get_remote_refs(transport, &ref_prefixes); | |
8434c2f1 | 1270 | |
5b05795c | 1271 | if (refs) { |
b65dc2ce | 1272 | int hash_algo = hash_algo_by_ptr(transport_get_hash_algo(transport)); |
1273 | ||
1274 | /* | |
1275 | * Now that we know what algorithm the remote side is using, | |
1276 | * let's set ours to the same thing. | |
1277 | */ | |
47ac9703 | 1278 | initialize_repository_version(hash_algo, 1); |
b65dc2ce | 1279 | repo_set_hash_algo(the_repository, hash_algo); |
1280 | ||
515be833 | 1281 | mapped_refs = wanted_peer_refs(refs, &remote->fetch); |
5b05795c MH |
1282 | /* |
1283 | * transport_get_remote_refs() may return refs with null sha-1 | |
1284 | * in mapped_refs (see struct transport->get_refs_list | |
1285 | * comment). In that case we need fetch it early because | |
1286 | * remote_head code below relies on it. | |
1287 | * | |
1288 | * for normal clones, transport_get_remote_refs() should | |
1289 | * return reliable ref set, we can delay cloning until after | |
1290 | * remote HEAD check. | |
1291 | */ | |
1292 | for (ref = refs; ref; ref = ref->next) | |
f4e54d02 | 1293 | if (is_null_oid(&ref->old_oid)) { |
5b05795c MH |
1294 | complete_refs_before_fetch = 0; |
1295 | break; | |
1296 | } | |
90498161 | 1297 | |
aab179d9 TB |
1298 | if (!is_local && !complete_refs_before_fetch) { |
1299 | err = transport_fetch_refs(transport, mapped_refs); | |
1300 | if (err) | |
1301 | goto cleanup; | |
1302 | } | |
8434c2f1 | 1303 | |
6cb4e6cc | 1304 | remote_head = find_ref_by_name(refs, "HEAD"); |
7a4ee28f JK |
1305 | remote_head_points_at = |
1306 | guess_remote_head(remote_head, mapped_refs, 0); | |
1307 | ||
1308 | if (option_branch) { | |
7a4ee28f | 1309 | our_head_points_at = |
9e585046 | 1310 | find_remote_branch(mapped_refs, option_branch); |
7a4ee28f | 1311 | |
920b691f NTND |
1312 | if (!our_head_points_at) |
1313 | die(_("Remote branch %s not found in upstream %s"), | |
75ca3906 | 1314 | option_branch, remote_name); |
7a4ee28f JK |
1315 | } |
1316 | else | |
1317 | our_head_points_at = remote_head_points_at; | |
86ac7518 SR |
1318 | } |
1319 | else { | |
a3552aba RT |
1320 | if (option_branch) |
1321 | die(_("Remote branch %s not found in upstream %s"), | |
75ca3906 | 1322 | option_branch, remote_name); |
a3552aba | 1323 | |
e84d7b74 | 1324 | warning(_("You appear to have cloned an empty repository.")); |
5b05795c | 1325 | mapped_refs = NULL; |
7a4ee28f JK |
1326 | our_head_points_at = NULL; |
1327 | remote_head_points_at = NULL; | |
86ac7518 SR |
1328 | remote_head = NULL; |
1329 | option_no_checkout = 1; | |
0cc1b475 | 1330 | if (!option_bare) { |
cc0f13c5 | 1331 | const char *branch = git_default_branch_name(0); |
0cc1b475 JS |
1332 | char *ref = xstrfmt("refs/heads/%s", branch); |
1333 | ||
75ca3906 | 1334 | install_branch_config(0, branch, remote_name, ref); |
0cc1b475 JS |
1335 | free(ref); |
1336 | } | |
86ac7518 | 1337 | } |
8434c2f1 | 1338 | |
31b808a0 RT |
1339 | write_refspec_config(src_ref_prefix, our_head_points_at, |
1340 | remote_head_points_at, &branch_top); | |
1341 | ||
548719fb | 1342 | if (filter_options.choice) |
75ca3906 | 1343 | partial_clone_register(remote_name, &filter_options); |
548719fb | 1344 | |
6f48d39f NTND |
1345 | if (is_local) |
1346 | clone_local(path, git_dir); | |
aab179d9 TB |
1347 | else if (refs && complete_refs_before_fetch) { |
1348 | err = transport_fetch_refs(transport, mapped_refs); | |
1349 | if (err) | |
1350 | goto cleanup; | |
1351 | } | |
8434c2f1 | 1352 | |
960b7d1c | 1353 | update_remote_refs(refs, mapped_refs, remote_head_points_at, |
548719fb | 1354 | branch_top.buf, reflog_msg.buf, transport, |
2b98478c | 1355 | !is_local); |
8434c2f1 | 1356 | |
f034d354 | 1357 | update_head(our_head_points_at, remote_head, reflog_msg.buf); |
1db4a75c | 1358 | |
72c5f883 JK |
1359 | /* |
1360 | * We want to show progress for recursive submodule clones iff | |
1361 | * we did so for the main clone. But only the transport knows | |
1362 | * the final decision for this flag, so we need to rescue the value | |
1363 | * before we free the transport. | |
1364 | */ | |
1365 | submodule_progress = transport->progress; | |
1366 | ||
6f48d39f NTND |
1367 | transport_unlock_pack(transport); |
1368 | transport_disconnect(transport); | |
1db4a75c | 1369 | |
786b150c | 1370 | if (option_dissociate) { |
2d511cfc | 1371 | close_object_store(the_repository->objects); |
fb1d6dab | 1372 | dissociate_from_references(); |
786b150c | 1373 | } |
fb1d6dab | 1374 | |
d3b34622 | 1375 | junk_mode = JUNK_LEAVE_REPO; |
72c5f883 | 1376 | err = checkout(submodule_progress); |
8434c2f1 | 1377 | |
aab179d9 | 1378 | cleanup: |
de9ed3ef | 1379 | free(remote_name); |
8434c2f1 | 1380 | strbuf_release(&reflog_msg); |
b5ff37ac MV |
1381 | strbuf_release(&branch_top); |
1382 | strbuf_release(&key); | |
d3b34622 | 1383 | junk_mode = JUNK_LEAVE_ALL; |
50b67732 | 1384 | |
22f9b7f3 | 1385 | strvec_clear(&ref_prefixes); |
dfa7a6c5 | 1386 | return err; |
8434c2f1 | 1387 | } |