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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" |
72ddf34d | 35 | #include "hook.h" |
86fdd94d | 36 | #include "bundle.h" |
8434c2f1 DB |
37 | |
38 | /* | |
39 | * Overall FIXMEs: | |
40 | * - respect DB_ENVIRONMENT for .git/objects. | |
41 | * | |
42 | * Implementation notes: | |
43 | * - dropping use-separate-remote and no-separate-remote compatibility | |
44 | * | |
45 | */ | |
46 | static const char * const builtin_clone_usage[] = { | |
9c9b4f2f | 47 | N_("git clone [<options>] [--] <repo> [<dir>]"), |
8434c2f1 DB |
48 | NULL |
49 | }; | |
50 | ||
3e6e0edd | 51 | static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1; |
bb62e0a9 | 52 | static int option_local = -1, option_no_hardlinks, option_shared; |
0dab2468 | 53 | static int option_no_tags; |
18a74a09 | 54 | static int option_shallow_submodules; |
4fe788b1 LL |
55 | static int option_reject_shallow = -1; /* unspecified */ |
56 | static int config_reject_shallow = -1; /* unspecified */ | |
994c2aaf NTND |
57 | static int deepen; |
58 | static char *option_template, *option_depth, *option_since; | |
8434c2f1 | 59 | static char *option_origin = NULL; |
de9ed3ef | 60 | static char *remote_name = NULL; |
7a4ee28f | 61 | static char *option_branch = NULL; |
859e5df9 | 62 | static struct string_list option_not = STRING_LIST_INIT_NODUP; |
b57fb80a | 63 | static const char *real_git_dir; |
8434c2f1 | 64 | static char *option_upload_pack = "git-upload-pack"; |
5bd631b3 | 65 | static int option_verbosity; |
01fdc21f | 66 | static int option_progress = -1; |
d89f09c8 | 67 | static int option_sparse_checkout; |
c915f11e | 68 | static enum transport_family family; |
2721ce21 | 69 | static struct string_list option_config = STRING_LIST_INIT_NODUP; |
5e40800d | 70 | static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; |
f7415b4d | 71 | static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP; |
fb1d6dab | 72 | static int option_dissociate; |
72290d6a | 73 | static int max_jobs = -1; |
bb62e0a9 | 74 | static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP; |
2a01bded | 75 | static struct list_objects_filter_options filter_options = LIST_OBJECTS_FILTER_INIT; |
f05da2b4 JS |
76 | static int option_filter_submodules = -1; /* unspecified */ |
77 | static int config_filter_submodules = -1; /* unspecified */ | |
6e983059 | 78 | static struct string_list server_options = STRING_LIST_INIT_NODUP; |
4c691016 | 79 | static int option_remote_submodules; |
bb62e0a9 BW |
80 | |
81 | static int recurse_submodules_cb(const struct option *opt, | |
82 | const char *arg, int unset) | |
83 | { | |
84 | if (unset) | |
85 | string_list_clear((struct string_list *)opt->value, 0); | |
86 | else if (arg) | |
87 | string_list_append((struct string_list *)opt->value, arg); | |
88 | else | |
89 | string_list_append((struct string_list *)opt->value, | |
90 | (const char *)opt->defval); | |
91 | ||
92 | return 0; | |
93 | } | |
dbc92b07 | 94 | |
8434c2f1 | 95 | static struct option builtin_clone_options[] = { |
5bd631b3 | 96 | OPT__VERBOSITY(&option_verbosity), |
01fdc21f | 97 | OPT_BOOL(0, "progress", &option_progress, |
32b77add | 98 | N_("force progress reporting")), |
4fe788b1 LL |
99 | OPT_BOOL(0, "reject-shallow", &option_reject_shallow, |
100 | N_("don't clone shallow repository")), | |
d5d09d47 SB |
101 | OPT_BOOL('n', "no-checkout", &option_no_checkout, |
102 | N_("don't create a checkout")), | |
4741edd5 SB |
103 | OPT_BOOL(0, "bare", &option_bare, N_("create a bare repository")), |
104 | OPT_HIDDEN_BOOL(0, "naked", &option_bare, | |
105 | N_("create a bare repository")), | |
d5d09d47 SB |
106 | OPT_BOOL(0, "mirror", &option_mirror, |
107 | N_("create a mirror repository (implies bare)")), | |
189260b1 | 108 | OPT_BOOL('l', "local", &option_local, |
32b77add | 109 | N_("to clone from a local repository")), |
d5d09d47 | 110 | OPT_BOOL(0, "no-hardlinks", &option_no_hardlinks, |
32b77add | 111 | N_("don't use local hardlinks, always copy")), |
d5d09d47 | 112 | OPT_BOOL('s', "shared", &option_shared, |
32b77add | 113 | N_("setup as shared repository")), |
bb62e0a9 BW |
114 | { OPTION_CALLBACK, 0, "recurse-submodules", &option_recurse_submodules, |
115 | N_("pathspec"), N_("initialize submodules in the clone"), | |
116 | PARSE_OPT_OPTARG, recurse_submodules_cb, (intptr_t)"." }, | |
c28b036f | 117 | OPT_ALIAS(0, "recursive", "recurse-submodules"), |
72290d6a SB |
118 | OPT_INTEGER('j', "jobs", &max_jobs, |
119 | N_("number of submodules cloned in parallel")), | |
32b77add NTND |
120 | OPT_STRING(0, "template", &option_template, N_("template-directory"), |
121 | N_("directory from which templates will be used")), | |
5e40800d | 122 | OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"), |
8ade009c | 123 | N_("reference repository")), |
f7415b4d SB |
124 | OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference, |
125 | N_("repo"), N_("reference repository")), | |
14f8b9b4 JK |
126 | OPT_BOOL(0, "dissociate", &option_dissociate, |
127 | N_("use --reference only while cloning")), | |
32b77add NTND |
128 | OPT_STRING('o', "origin", &option_origin, N_("name"), |
129 | N_("use <name> instead of 'origin' to track upstream")), | |
130 | OPT_STRING('b', "branch", &option_branch, N_("branch"), | |
131 | N_("checkout <branch> instead of the remote's HEAD")), | |
132 | OPT_STRING('u', "upload-pack", &option_upload_pack, N_("path"), | |
133 | N_("path to git-upload-pack on the remote")), | |
134 | OPT_STRING(0, "depth", &option_depth, N_("depth"), | |
135 | N_("create a shallow clone of that depth")), | |
994c2aaf NTND |
136 | OPT_STRING(0, "shallow-since", &option_since, N_("time"), |
137 | N_("create a shallow clone since a specific time")), | |
859e5df9 | 138 | OPT_STRING_LIST(0, "shallow-exclude", &option_not, N_("revision"), |
6d873865 | 139 | N_("deepen history of shallow clone, excluding rev")), |
3e6e0edd | 140 | OPT_BOOL(0, "single-branch", &option_single_branch, |
32b77add | 141 | N_("clone only one branch, HEAD or --branch")), |
0dab2468 ÆAB |
142 | OPT_BOOL(0, "no-tags", &option_no_tags, |
143 | N_("don't clone any tags, and make later fetches not to follow them")), | |
d22eb044 SB |
144 | OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules, |
145 | N_("any cloned submodules will be shallow")), | |
32b77add NTND |
146 | OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), |
147 | N_("separate git dir from working tree")), | |
148 | OPT_STRING_LIST('c', "config", &option_config, N_("key=value"), | |
149 | N_("set config inside the new repository")), | |
6e983059 JT |
150 | OPT_STRING_LIST(0, "server-option", &server_options, |
151 | N_("server-specific"), N_("option to transmit")), | |
c915f11e EW |
152 | OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), |
153 | TRANSPORT_FAMILY_IPV4), | |
154 | OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), | |
155 | TRANSPORT_FAMILY_IPV6), | |
548719fb | 156 | OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options), |
f05da2b4 JS |
157 | OPT_BOOL(0, "also-filter-submodules", &option_filter_submodules, |
158 | N_("apply partial clone filters to submodules")), | |
4c691016 BA |
159 | OPT_BOOL(0, "remote-submodules", &option_remote_submodules, |
160 | N_("any cloned submodules will use their remote-tracking branch")), | |
d89f09c8 DS |
161 | OPT_BOOL(0, "sparse", &option_sparse_checkout, |
162 | N_("initialize sparse-checkout file to include only files at root")), | |
8434c2f1 DB |
163 | OPT_END() |
164 | }; | |
165 | ||
0ea68e42 | 166 | static const char *get_repo_path_1(struct strbuf *path, int *is_bundle) |
8434c2f1 | 167 | { |
b3256eb8 | 168 | static char *suffix[] = { "/.git", "", ".git/.git", ".git" }; |
8434c2f1 | 169 | static char *bundle_suffix[] = { ".bundle", "" }; |
0ea68e42 | 170 | size_t baselen = path->len; |
8434c2f1 DB |
171 | struct stat st; |
172 | int i; | |
173 | ||
174 | for (i = 0; i < ARRAY_SIZE(suffix); i++) { | |
0ea68e42 JK |
175 | strbuf_setlen(path, baselen); |
176 | strbuf_addstr(path, suffix[i]); | |
177 | if (stat(path->buf, &st)) | |
9b0ebc72 | 178 | continue; |
0ea68e42 | 179 | if (S_ISDIR(st.st_mode) && is_git_directory(path->buf)) { |
8434c2f1 | 180 | *is_bundle = 0; |
0ea68e42 | 181 | return path->buf; |
9b0ebc72 NTND |
182 | } else if (S_ISREG(st.st_mode) && st.st_size > 8) { |
183 | /* Is it a "gitfile"? */ | |
184 | char signature[8]; | |
0ea68e42 JK |
185 | const char *dst; |
186 | int len, fd = open(path->buf, O_RDONLY); | |
9b0ebc72 NTND |
187 | if (fd < 0) |
188 | continue; | |
189 | len = read_in_full(fd, signature, 8); | |
190 | close(fd); | |
191 | if (len != 8 || strncmp(signature, "gitdir: ", 8)) | |
192 | continue; | |
0ea68e42 JK |
193 | dst = read_gitfile(path->buf); |
194 | if (dst) { | |
9b0ebc72 | 195 | *is_bundle = 0; |
0ea68e42 | 196 | return dst; |
9b0ebc72 | 197 | } |
8434c2f1 DB |
198 | } |
199 | } | |
200 | ||
201 | for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { | |
0ea68e42 JK |
202 | strbuf_setlen(path, baselen); |
203 | strbuf_addstr(path, bundle_suffix[i]); | |
204 | if (!stat(path->buf, &st) && S_ISREG(st.st_mode)) { | |
8434c2f1 | 205 | *is_bundle = 1; |
0ea68e42 | 206 | return path->buf; |
8434c2f1 DB |
207 | } |
208 | } | |
209 | ||
210 | return NULL; | |
211 | } | |
212 | ||
0ea68e42 JK |
213 | static char *get_repo_path(const char *repo, int *is_bundle) |
214 | { | |
215 | struct strbuf path = STRBUF_INIT; | |
216 | const char *raw; | |
217 | char *canon; | |
218 | ||
219 | strbuf_addstr(&path, repo); | |
220 | raw = get_repo_path_1(&path, is_bundle); | |
0aaad415 | 221 | canon = raw ? absolute_pathdup(raw) : NULL; |
0ea68e42 JK |
222 | strbuf_release(&path); |
223 | return canon; | |
224 | } | |
225 | ||
dbc92b07 | 226 | static int add_one_reference(struct string_list_item *item, void *cb_data) |
8434c2f1 | 227 | { |
9eeea7d2 | 228 | struct strbuf err = STRBUF_INIT; |
f7415b4d | 229 | int *required = cb_data; |
9eeea7d2 | 230 | char *ref_git = compute_alternate_path(item->string, &err); |
8434c2f1 | 231 | |
f7415b4d SB |
232 | if (!ref_git) { |
233 | if (*required) | |
234 | die("%s", err.buf); | |
235 | else | |
236 | fprintf(stderr, | |
237 | _("info: Could not add alternate for '%s': %s\n"), | |
238 | item->string, err.buf); | |
239 | } else { | |
240 | struct strbuf sb = STRBUF_INIT; | |
241 | strbuf_addf(&sb, "%s/objects", ref_git); | |
242 | add_to_alternates_file(sb.buf); | |
243 | strbuf_release(&sb); | |
244 | } | |
606e435a | 245 | |
9eeea7d2 | 246 | strbuf_release(&err); |
f7415b4d | 247 | free(ref_git); |
dbc92b07 JH |
248 | return 0; |
249 | } | |
8434c2f1 | 250 | |
dbc92b07 JH |
251 | static void setup_reference(void) |
252 | { | |
f7415b4d SB |
253 | int required = 1; |
254 | for_each_string_list(&option_required_reference, | |
255 | add_one_reference, &required); | |
256 | required = 0; | |
257 | for_each_string_list(&option_optional_reference, | |
258 | add_one_reference, &required); | |
8434c2f1 DB |
259 | } |
260 | ||
3c1dce88 | 261 | static void copy_alternates(struct strbuf *src, const char *src_repo) |
e6baf4a1 JH |
262 | { |
263 | /* | |
264 | * Read from the source objects/info/alternates file | |
265 | * and copy the entries to corresponding file in the | |
266 | * destination repository with add_to_alternates_file(). | |
267 | * Both src and dst have "$path/objects/info/alternates". | |
268 | * | |
269 | * Instead of copying bit-for-bit from the original, | |
270 | * we need to append to existing one so that the already | |
271 | * created entry via "clone -s" is not lost, and also | |
272 | * to turn entries with paths relative to the original | |
273 | * absolute, so that they can be used in the new repository. | |
274 | */ | |
02912f47 | 275 | FILE *in = xfopen(src->buf, "r"); |
e6baf4a1 JH |
276 | struct strbuf line = STRBUF_INIT; |
277 | ||
3f163962 | 278 | while (strbuf_getline(&line, in) != EOF) { |
dcf69262 | 279 | char *abs_path; |
e6baf4a1 JH |
280 | if (!line.len || line.buf[0] == '#') |
281 | continue; | |
282 | if (is_absolute_path(line.buf)) { | |
283 | add_to_alternates_file(line.buf); | |
284 | continue; | |
285 | } | |
dcf69262 | 286 | abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf); |
22d3b8de JK |
287 | if (!normalize_path_copy(abs_path, abs_path)) |
288 | add_to_alternates_file(abs_path); | |
289 | else | |
290 | warning("skipping invalid relative alternate: %s/%s", | |
291 | src_repo, line.buf); | |
dcf69262 | 292 | free(abs_path); |
e6baf4a1 JH |
293 | } |
294 | strbuf_release(&line); | |
295 | fclose(in); | |
296 | } | |
297 | ||
14954b79 MT |
298 | static void mkdir_if_missing(const char *pathname, mode_t mode) |
299 | { | |
300 | struct stat st; | |
301 | ||
302 | if (!mkdir(pathname, mode)) | |
303 | return; | |
304 | ||
305 | if (errno != EEXIST) | |
306 | die_errno(_("failed to create directory '%s'"), pathname); | |
307 | else if (stat(pathname, &st)) | |
308 | die_errno(_("failed to stat '%s'"), pathname); | |
309 | else if (!S_ISDIR(st.st_mode)) | |
310 | die(_("%s exists and is not a directory"), pathname); | |
311 | } | |
312 | ||
e6baf4a1 | 313 | static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, |
ff7ccc8c | 314 | const char *src_repo) |
8434c2f1 | 315 | { |
8434c2f1 | 316 | int src_len, dest_len; |
ff7ccc8c MT |
317 | struct dir_iterator *iter; |
318 | int iter_status; | |
319 | unsigned int flags; | |
3d7747e3 | 320 | struct strbuf realpath = STRBUF_INIT; |
8434c2f1 | 321 | |
14954b79 | 322 | mkdir_if_missing(dest->buf, 0777); |
8434c2f1 | 323 | |
ff7ccc8c MT |
324 | flags = DIR_ITERATOR_PEDANTIC | DIR_ITERATOR_FOLLOW_SYMLINKS; |
325 | iter = dir_iterator_begin(src->buf, flags); | |
326 | ||
327 | if (!iter) | |
328 | die_errno(_("failed to start iterator over '%s'"), src->buf); | |
8434c2f1 | 329 | |
b9e125e0 MV |
330 | strbuf_addch(src, '/'); |
331 | src_len = src->len; | |
332 | strbuf_addch(dest, '/'); | |
333 | dest_len = dest->len; | |
8434c2f1 | 334 | |
ff7ccc8c | 335 | while ((iter_status = dir_iterator_advance(iter)) == ITER_OK) { |
b9e125e0 | 336 | strbuf_setlen(src, src_len); |
ff7ccc8c | 337 | strbuf_addstr(src, iter->relative_path); |
b9e125e0 | 338 | strbuf_setlen(dest, dest_len); |
ff7ccc8c MT |
339 | strbuf_addstr(dest, iter->relative_path); |
340 | ||
341 | if (S_ISDIR(iter->st.st_mode)) { | |
342 | mkdir_if_missing(dest->buf, 0777); | |
e6baf4a1 JH |
343 | continue; |
344 | } | |
345 | ||
346 | /* Files that cannot be copied bit-for-bit... */ | |
c4d9c506 | 347 | if (!fspathcmp(iter->relative_path, "info/alternates")) { |
3c1dce88 | 348 | copy_alternates(src, src_repo); |
8434c2f1 DB |
349 | continue; |
350 | } | |
351 | ||
b9e125e0 | 352 | if (unlink(dest->buf) && errno != ENOENT) |
e84d7b74 | 353 | die_errno(_("failed to unlink '%s'"), dest->buf); |
fdabc242 | 354 | if (!option_no_hardlinks) { |
3d7747e3 AM |
355 | strbuf_realpath(&realpath, src->buf, 1); |
356 | if (!link(realpath.buf, dest->buf)) | |
fdabc242 | 357 | continue; |
189260b1 | 358 | if (option_local > 0) |
e84d7b74 | 359 | die_errno(_("failed to create link '%s'"), dest->buf); |
fdabc242 | 360 | option_no_hardlinks = 1; |
8434c2f1 | 361 | } |
f7835a25 | 362 | if (copy_file_with_time(dest->buf, src->buf, 0666)) |
e84d7b74 | 363 | die_errno(_("failed to copy file to '%s'"), dest->buf); |
8434c2f1 | 364 | } |
ff7ccc8c MT |
365 | |
366 | if (iter_status != ITER_DONE) { | |
367 | strbuf_setlen(src, src_len); | |
368 | die(_("failed to iterate over '%s'"), src->buf); | |
369 | } | |
3d7747e3 AM |
370 | |
371 | strbuf_release(&realpath); | |
8434c2f1 DB |
372 | } |
373 | ||
6f48d39f | 374 | static void clone_local(const char *src_repo, const char *dest_repo) |
8434c2f1 | 375 | { |
e6baf4a1 JH |
376 | if (option_shared) { |
377 | struct strbuf alt = STRBUF_INIT; | |
b3b05971 ES |
378 | get_common_dir(&alt, src_repo); |
379 | strbuf_addstr(&alt, "/objects"); | |
e6baf4a1 JH |
380 | add_to_alternates_file(alt.buf); |
381 | strbuf_release(&alt); | |
382 | } else { | |
383 | struct strbuf src = STRBUF_INIT; | |
384 | struct strbuf dest = STRBUF_INIT; | |
744e4697 NTND |
385 | get_common_dir(&src, src_repo); |
386 | get_common_dir(&dest, dest_repo); | |
387 | strbuf_addstr(&src, "/objects"); | |
388 | strbuf_addstr(&dest, "/objects"); | |
ff7ccc8c | 389 | copy_or_link_directory(&src, &dest, src_repo); |
b9e125e0 MV |
390 | strbuf_release(&src); |
391 | strbuf_release(&dest); | |
8434c2f1 DB |
392 | } |
393 | ||
28ba96ab | 394 | if (0 <= option_verbosity) |
68b939b2 | 395 | fprintf(stderr, _("done.\n")); |
8434c2f1 DB |
396 | } |
397 | ||
398 | static const char *junk_work_tree; | |
d45420c1 | 399 | static int junk_work_tree_flags; |
8434c2f1 | 400 | static const char *junk_git_dir; |
d45420c1 | 401 | static int junk_git_dir_flags; |
85064630 | 402 | static enum { |
d3b34622 JK |
403 | JUNK_LEAVE_NONE, |
404 | JUNK_LEAVE_REPO, | |
405 | JUNK_LEAVE_ALL | |
406 | } junk_mode = JUNK_LEAVE_NONE; | |
407 | ||
408 | static const char junk_leave_repo_msg[] = | |
409 | N_("Clone succeeded, but checkout failed.\n" | |
410 | "You can inspect what was checked out with 'git status'\n" | |
80f537f7 | 411 | "and retry with 'git restore --source=HEAD :/'\n"); |
8434c2f1 DB |
412 | |
413 | static void remove_junk(void) | |
414 | { | |
f285a2d7 | 415 | struct strbuf sb = STRBUF_INIT; |
d3b34622 JK |
416 | |
417 | switch (junk_mode) { | |
418 | case JUNK_LEAVE_REPO: | |
419 | warning("%s", _(junk_leave_repo_msg)); | |
420 | /* fall-through */ | |
421 | case JUNK_LEAVE_ALL: | |
422 | return; | |
423 | default: | |
424 | /* proceed to removal */ | |
425 | break; | |
426 | } | |
427 | ||
8434c2f1 DB |
428 | if (junk_git_dir) { |
429 | strbuf_addstr(&sb, junk_git_dir); | |
d45420c1 | 430 | remove_dir_recursively(&sb, junk_git_dir_flags); |
8434c2f1 DB |
431 | strbuf_reset(&sb); |
432 | } | |
433 | if (junk_work_tree) { | |
434 | strbuf_addstr(&sb, junk_work_tree); | |
d45420c1 | 435 | remove_dir_recursively(&sb, junk_work_tree_flags); |
8434c2f1 | 436 | } |
9c18b548 | 437 | strbuf_release(&sb); |
8434c2f1 DB |
438 | } |
439 | ||
440 | static void remove_junk_on_signal(int signo) | |
441 | { | |
442 | remove_junk(); | |
4a16d072 | 443 | sigchain_pop(signo); |
8434c2f1 DB |
444 | raise(signo); |
445 | } | |
446 | ||
9e585046 NTND |
447 | static struct ref *find_remote_branch(const struct ref *refs, const char *branch) |
448 | { | |
449 | struct ref *ref; | |
450 | struct strbuf head = STRBUF_INIT; | |
451 | strbuf_addstr(&head, "refs/heads/"); | |
452 | strbuf_addstr(&head, branch); | |
453 | ref = find_ref_by_name(refs, head.buf); | |
454 | strbuf_release(&head); | |
5a7d5b68 NTND |
455 | |
456 | if (ref) | |
457 | return ref; | |
458 | ||
459 | strbuf_addstr(&head, "refs/tags/"); | |
460 | strbuf_addstr(&head, branch); | |
461 | ref = find_ref_by_name(refs, head.buf); | |
462 | strbuf_release(&head); | |
463 | ||
9e585046 NTND |
464 | return ref; |
465 | } | |
466 | ||
5bdc32d3 | 467 | static struct ref *wanted_peer_refs(const struct ref *refs, |
515be833 | 468 | struct refspec *refspec) |
8434c2f1 | 469 | { |
c1921c18 JK |
470 | struct ref *head = copy_ref(find_ref_by_name(refs, "HEAD")); |
471 | struct ref *local_refs = head; | |
472 | struct ref **tail = head ? &head->next : &local_refs; | |
8434c2f1 | 473 | |
3e6e0edd NTND |
474 | if (option_single_branch) { |
475 | struct ref *remote_head = NULL; | |
476 | ||
477 | if (!option_branch) | |
478 | remote_head = guess_remote_head(head, refs, 0); | |
0ec4b165 NTND |
479 | else { |
480 | local_refs = NULL; | |
481 | tail = &local_refs; | |
482 | remote_head = copy_ref(find_remote_branch(refs, option_branch)); | |
483 | } | |
3e6e0edd NTND |
484 | |
485 | if (!remote_head && option_branch) | |
486 | warning(_("Could not find remote branch %s to clone."), | |
487 | option_branch); | |
5a7d5b68 | 488 | else { |
515be833 SG |
489 | int i; |
490 | for (i = 0; i < refspec->nr; i++) | |
491 | get_fetch_map(remote_head, &refspec->items[i], | |
492 | &tail, 0); | |
5a7d5b68 NTND |
493 | |
494 | /* if --branch=tag, pull the requested tag explicitly */ | |
495 | get_fetch_map(remote_head, tag_refspec, &tail, 0); | |
496 | } | |
515be833 SG |
497 | } else { |
498 | int i; | |
499 | for (i = 0; i < refspec->nr; i++) | |
500 | get_fetch_map(refs, &refspec->items[i], &tail, 0); | |
501 | } | |
3e6e0edd | 502 | |
0dab2468 | 503 | if (!option_mirror && !option_single_branch && !option_no_tags) |
468386a9 | 504 | get_fetch_map(refs, tag_refspec, &tail, 0); |
8434c2f1 | 505 | |
5bdc32d3 NP |
506 | return local_refs; |
507 | } | |
508 | ||
509 | static void write_remote_refs(const struct ref *local_refs) | |
510 | { | |
511 | const struct ref *r; | |
512 | ||
58f233ce MH |
513 | struct ref_transaction *t; |
514 | struct strbuf err = STRBUF_INIT; | |
515 | ||
516 | t = ref_transaction_begin(&err); | |
517 | if (!t) | |
518 | die("%s", err.buf); | |
9f69d297 | 519 | |
c1921c18 JK |
520 | for (r = local_refs; r; r = r->next) { |
521 | if (!r->peer_ref) | |
522 | continue; | |
89f3bbdd | 523 | if (ref_transaction_create(t, r->peer_ref->name, &r->old_oid, |
58f233ce MH |
524 | 0, NULL, &err)) |
525 | die("%s", err.buf); | |
c1921c18 | 526 | } |
3e8aded2 | 527 | |
58f233ce MH |
528 | if (initial_ref_transaction_commit(t, &err)) |
529 | die("%s", err.buf); | |
530 | ||
531 | strbuf_release(&err); | |
532 | ref_transaction_free(t); | |
8434c2f1 DB |
533 | } |
534 | ||
3e6e0edd NTND |
535 | static void write_followtags(const struct ref *refs, const char *msg) |
536 | { | |
537 | const struct ref *ref; | |
538 | for (ref = refs; ref; ref = ref->next) { | |
59556548 | 539 | if (!starts_with(ref->name, "refs/tags/")) |
3e6e0edd | 540 | continue; |
59556548 | 541 | if (ends_with(ref->name, "^{}")) |
3e6e0edd | 542 | continue; |
167a575e JK |
543 | if (!has_object_file_with_flags(&ref->old_oid, |
544 | OBJECT_INFO_QUICK | | |
545 | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
3e6e0edd | 546 | continue; |
ae077771 | 547 | update_ref(msg, ref->name, &ref->old_oid, NULL, 0, |
548 | UPDATE_REFS_DIE_ON_ERR); | |
3e6e0edd NTND |
549 | } |
550 | } | |
551 | ||
9fec7b21 | 552 | static const struct object_id *iterate_ref_map(void *cb_data) |
0433ad12 JK |
553 | { |
554 | struct ref **rm = cb_data; | |
555 | struct ref *ref = *rm; | |
556 | ||
557 | /* | |
558 | * Skip anything missing a peer_ref, which we are not | |
559 | * actually going to write a ref for. | |
560 | */ | |
561 | while (ref && !ref->peer_ref) | |
562 | ref = ref->next; | |
0433ad12 | 563 | if (!ref) |
9fec7b21 | 564 | return NULL; |
0433ad12 | 565 | |
0433ad12 | 566 | *rm = ref->next; |
9fec7b21 | 567 | return &ref->old_oid; |
0433ad12 JK |
568 | } |
569 | ||
960b7d1c NTND |
570 | static void update_remote_refs(const struct ref *refs, |
571 | const struct ref *mapped_refs, | |
572 | const struct ref *remote_head_points_at, | |
573 | const char *branch_top, | |
c6807a40 | 574 | const char *msg, |
45ed4afa | 575 | struct transport *transport, |
2b98478c | 576 | int check_connectivity) |
960b7d1c | 577 | { |
0433ad12 JK |
578 | const struct ref *rm = mapped_refs; |
579 | ||
125a05fd | 580 | if (check_connectivity) { |
7043c707 JK |
581 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
582 | ||
583 | opt.transport = transport; | |
38e590ea | 584 | opt.progress = transport->progress; |
7043c707 | 585 | |
7043c707 | 586 | if (check_connected(iterate_ref_map, &rm, &opt)) |
125a05fd JK |
587 | die(_("remote did not send all necessary objects")); |
588 | } | |
0433ad12 | 589 | |
960b7d1c | 590 | if (refs) { |
960b7d1c | 591 | write_remote_refs(mapped_refs); |
0dab2468 | 592 | if (option_single_branch && !option_no_tags) |
960b7d1c NTND |
593 | write_followtags(refs, msg); |
594 | } | |
595 | ||
596 | if (remote_head_points_at && !option_bare) { | |
597 | struct strbuf head_ref = STRBUF_INIT; | |
598 | strbuf_addstr(&head_ref, branch_top); | |
599 | strbuf_addstr(&head_ref, "HEAD"); | |
4be49d75 JK |
600 | if (create_symref(head_ref.buf, |
601 | remote_head_points_at->peer_ref->name, | |
602 | msg) < 0) | |
39ad4f39 | 603 | die(_("unable to update %s"), head_ref.buf); |
4be49d75 | 604 | strbuf_release(&head_ref); |
960b7d1c NTND |
605 | } |
606 | } | |
607 | ||
f034d354 | 608 | static void update_head(const struct ref *our, const struct ref *remote, |
daf7898a | 609 | const char *unborn, const char *msg) |
f034d354 | 610 | { |
cf4fff57 JK |
611 | const char *head; |
612 | if (our && skip_prefix(our->name, "refs/heads/", &head)) { | |
f034d354 | 613 | /* Local default branch link */ |
4be49d75 | 614 | if (create_symref("HEAD", our->name, NULL) < 0) |
39ad4f39 | 615 | die(_("unable to update HEAD")); |
f034d354 | 616 | if (!option_bare) { |
ae077771 | 617 | update_ref(msg, "HEAD", &our->old_oid, NULL, 0, |
f4124112 | 618 | UPDATE_REFS_DIE_ON_ERR); |
75ca3906 | 619 | install_branch_config(0, head, remote_name, our->name); |
f034d354 | 620 | } |
5a7d5b68 | 621 | } else if (our) { |
2122f675 SB |
622 | struct commit *c = lookup_commit_reference(the_repository, |
623 | &our->old_oid); | |
5a7d5b68 | 624 | /* --branch specifies a non-branch (i.e. tags), detach HEAD */ |
91774afc | 625 | update_ref(msg, "HEAD", &c->object.oid, NULL, REF_NO_DEREF, |
ae077771 | 626 | UPDATE_REFS_DIE_ON_ERR); |
f034d354 NTND |
627 | } else if (remote) { |
628 | /* | |
629 | * We know remote HEAD points to a non-branch, or | |
920b691f | 630 | * HEAD points to a branch but we don't know which one. |
f034d354 NTND |
631 | * Detach HEAD in all these cases. |
632 | */ | |
91774afc | 633 | update_ref(msg, "HEAD", &remote->old_oid, NULL, REF_NO_DEREF, |
ae077771 | 634 | UPDATE_REFS_DIE_ON_ERR); |
daf7898a JK |
635 | } else if (unborn && skip_prefix(unborn, "refs/heads/", &head)) { |
636 | /* | |
637 | * Unborn head from remote; same as "our" case above except | |
638 | * that we have no ref to update. | |
639 | */ | |
640 | if (create_symref("HEAD", unborn, NULL) < 0) | |
641 | die(_("unable to update HEAD")); | |
642 | if (!option_bare) | |
643 | install_branch_config(0, head, remote_name, unborn); | |
f034d354 NTND |
644 | } |
645 | } | |
646 | ||
d89f09c8 DS |
647 | static int git_sparse_checkout_init(const char *repo) |
648 | { | |
22f9b7f3 | 649 | struct strvec argv = STRVEC_INIT; |
d89f09c8 | 650 | int result = 0; |
d3595416 | 651 | strvec_pushl(&argv, "-C", repo, "sparse-checkout", "set", NULL); |
d89f09c8 DS |
652 | |
653 | /* | |
654 | * We must apply the setting in the current process | |
655 | * for the later checkout to use the sparse-checkout file. | |
656 | */ | |
657 | core_apply_sparse_checkout = 1; | |
658 | ||
d70a9eb6 | 659 | if (run_command_v_opt(argv.v, RUN_GIT_CMD)) { |
d89f09c8 DS |
660 | error(_("failed to initialize sparse-checkout")); |
661 | result = 1; | |
662 | } | |
663 | ||
22f9b7f3 | 664 | strvec_clear(&argv); |
d89f09c8 DS |
665 | return result; |
666 | } | |
667 | ||
f05da2b4 | 668 | static int checkout(int submodule_progress, int filter_submodules) |
c39852c1 | 669 | { |
ddc2cc64 | 670 | struct object_id oid; |
c39852c1 | 671 | char *head; |
837e34eb | 672 | struct lock_file lock_file = LOCK_INIT; |
c39852c1 NTND |
673 | struct unpack_trees_options opts; |
674 | struct tree *tree; | |
675 | struct tree_desc t; | |
03b86647 | 676 | int err = 0; |
c39852c1 NTND |
677 | |
678 | if (option_no_checkout) | |
679 | return 0; | |
680 | ||
0f2dc722 | 681 | head = resolve_refdup("HEAD", RESOLVE_REF_READING, &oid, NULL); |
c39852c1 NTND |
682 | if (!head) { |
683 | warning(_("remote HEAD refers to nonexistent ref, " | |
f77710c5 | 684 | "unable to checkout")); |
c39852c1 NTND |
685 | return 0; |
686 | } | |
2857093b | 687 | if (!strcmp(head, "HEAD")) { |
ed9bff08 | 688 | if (advice_enabled(ADVICE_DETACHED_HEAD)) |
ddc2cc64 | 689 | detach_advice(oid_to_hex(&oid)); |
dfc8cdc6 | 690 | FREE_AND_NULL(head); |
2857093b | 691 | } else { |
59556548 | 692 | if (!starts_with(head, "refs/heads/")) |
c39852c1 NTND |
693 | die(_("HEAD not found below refs/heads!")); |
694 | } | |
c39852c1 NTND |
695 | |
696 | /* We need to be in the new work tree for the checkout */ | |
697 | setup_work_tree(); | |
698 | ||
837e34eb | 699 | hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); |
c39852c1 NTND |
700 | |
701 | memset(&opts, 0, sizeof opts); | |
702 | opts.update = 1; | |
703 | opts.merge = 1; | |
b878579a | 704 | opts.clone = 1; |
1b5f3733 | 705 | opts.preserve_ignored = 0; |
c39852c1 | 706 | opts.fn = oneway_merge; |
8f63da13 | 707 | opts.verbose_update = (option_verbosity >= 0); |
c39852c1 NTND |
708 | opts.src_index = &the_index; |
709 | opts.dst_index = &the_index; | |
dfc8cdc6 | 710 | init_checkout_metadata(&opts.meta, head, &oid, NULL); |
c39852c1 | 711 | |
a9dbc179 | 712 | tree = parse_tree_indirect(&oid); |
8d2eaf64 GC |
713 | if (!tree) |
714 | die(_("unable to parse commit %s"), oid_to_hex(&oid)); | |
c39852c1 NTND |
715 | parse_tree(tree); |
716 | init_tree_desc(&t, tree->buffer, tree->size); | |
0aac7bb2 JK |
717 | if (unpack_trees(1, &t, &opts) < 0) |
718 | die(_("unable to checkout working tree")); | |
c39852c1 | 719 | |
dfc8cdc6 | 720 | free(head); |
721 | ||
837e34eb | 722 | if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) |
c39852c1 NTND |
723 | die(_("unable to write new index file")); |
724 | ||
72ddf34d | 725 | err |= run_hooks_l("post-checkout", oid_to_hex(null_oid()), |
ddc2cc64 | 726 | oid_to_hex(&oid), "1", NULL); |
c39852c1 | 727 | |
bb62e0a9 | 728 | if (!err && (option_recurse_submodules.nr > 0)) { |
22f9b7f3 JK |
729 | struct strvec args = STRVEC_INIT; |
730 | strvec_pushl(&args, "submodule", "update", "--require-init", "--recursive", NULL); | |
72290d6a | 731 | |
18a74a09 | 732 | if (option_shallow_submodules == 1) |
22f9b7f3 | 733 | strvec_push(&args, "--depth=1"); |
d22eb044 | 734 | |
72290d6a | 735 | if (max_jobs != -1) |
22f9b7f3 | 736 | strvec_pushf(&args, "--jobs=%d", max_jobs); |
72290d6a | 737 | |
72c5f883 | 738 | if (submodule_progress) |
22f9b7f3 | 739 | strvec_push(&args, "--progress"); |
72c5f883 | 740 | |
03c004c5 | 741 | if (option_verbosity < 0) |
22f9b7f3 | 742 | strvec_push(&args, "--quiet"); |
03c004c5 | 743 | |
4c691016 | 744 | if (option_remote_submodules) { |
22f9b7f3 JK |
745 | strvec_push(&args, "--remote"); |
746 | strvec_push(&args, "--no-fetch"); | |
4c691016 BA |
747 | } |
748 | ||
f05da2b4 JS |
749 | if (filter_submodules && filter_options.choice) |
750 | strvec_pushf(&args, "--filter=%s", | |
751 | expand_list_objects_filter_spec(&filter_options)); | |
752 | ||
132f600b | 753 | if (option_single_branch >= 0) |
22f9b7f3 | 754 | strvec_push(&args, option_single_branch ? |
132f600b ES |
755 | "--single-branch" : |
756 | "--no-single-branch"); | |
757 | ||
d70a9eb6 | 758 | err = run_command_v_opt(args.v, RUN_GIT_CMD); |
22f9b7f3 | 759 | strvec_clear(&args); |
72290d6a | 760 | } |
c39852c1 NTND |
761 | |
762 | return err; | |
763 | } | |
764 | ||
552955ed SB |
765 | static int git_clone_config(const char *k, const char *v, void *cb) |
766 | { | |
de9ed3ef SB |
767 | if (!strcmp(k, "clone.defaultremotename")) { |
768 | free(remote_name); | |
769 | remote_name = xstrdup(v); | |
770 | } | |
4fe788b1 LL |
771 | if (!strcmp(k, "clone.rejectshallow")) |
772 | config_reject_shallow = git_config_bool(k, v); | |
f05da2b4 JS |
773 | if (!strcmp(k, "clone.filtersubmodules")) |
774 | config_filter_submodules = git_config_bool(k, v); | |
4fe788b1 | 775 | |
552955ed SB |
776 | return git_default_config(k, v, cb); |
777 | } | |
778 | ||
84054f79 JK |
779 | static int write_one_config(const char *key, const char *value, void *data) |
780 | { | |
552955ed SB |
781 | /* |
782 | * give git_clone_config a chance to write config values back to the | |
783 | * environment, since git_config_set_multivar_gently only deals with | |
784 | * config-file writes | |
785 | */ | |
786 | int apply_failed = git_clone_config(key, value, data); | |
787 | if (apply_failed) | |
788 | return apply_failed; | |
789 | ||
db4eca1f JN |
790 | return git_config_set_multivar_gently(key, |
791 | value ? value : "true", | |
792 | CONFIG_REGEX_NONE, 0); | |
84054f79 JK |
793 | } |
794 | ||
795 | static void write_config(struct string_list *config) | |
796 | { | |
797 | int i; | |
798 | ||
799 | for (i = 0; i < config->nr; i++) { | |
800 | if (git_config_parse_parameter(config->items[i].string, | |
801 | write_one_config, NULL) < 0) | |
39ad4f39 | 802 | die(_("unable to write parameters to config file")); |
84054f79 JK |
803 | } |
804 | } | |
805 | ||
24d36f14 DA |
806 | static void write_refspec_config(const char *src_ref_prefix, |
807 | const struct ref *our_head_points_at, | |
808 | const struct ref *remote_head_points_at, | |
809 | struct strbuf *branch_top) | |
31b808a0 RT |
810 | { |
811 | struct strbuf key = STRBUF_INIT; | |
812 | struct strbuf value = STRBUF_INIT; | |
813 | ||
814 | if (option_mirror || !option_bare) { | |
815 | if (option_single_branch && !option_mirror) { | |
816 | if (option_branch) { | |
60a5f5fc | 817 | if (starts_with(our_head_points_at->name, "refs/tags/")) |
31b808a0 RT |
818 | strbuf_addf(&value, "+%s:%s", our_head_points_at->name, |
819 | our_head_points_at->name); | |
820 | else | |
821 | strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, | |
822 | branch_top->buf, option_branch); | |
823 | } else if (remote_head_points_at) { | |
cf4fff57 JK |
824 | const char *head = remote_head_points_at->name; |
825 | if (!skip_prefix(head, "refs/heads/", &head)) | |
033abf97 | 826 | BUG("remote HEAD points at non-head?"); |
cf4fff57 | 827 | |
31b808a0 | 828 | strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, |
cf4fff57 | 829 | branch_top->buf, head); |
31b808a0 RT |
830 | } |
831 | /* | |
832 | * otherwise, the next "git fetch" will | |
833 | * simply fetch from HEAD without updating | |
d6ac1d21 | 834 | * any remote-tracking branch, which is what |
31b808a0 RT |
835 | * we want. |
836 | */ | |
837 | } else { | |
838 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf); | |
839 | } | |
840 | /* Configure the remote */ | |
841 | if (value.len) { | |
75ca3906 | 842 | strbuf_addf(&key, "remote.%s.fetch", remote_name); |
31b808a0 RT |
843 | git_config_set_multivar(key.buf, value.buf, "^$", 0); |
844 | strbuf_reset(&key); | |
845 | ||
846 | if (option_mirror) { | |
75ca3906 | 847 | strbuf_addf(&key, "remote.%s.mirror", remote_name); |
31b808a0 RT |
848 | git_config_set(key.buf, "true"); |
849 | strbuf_reset(&key); | |
850 | } | |
851 | } | |
852 | } | |
853 | ||
854 | strbuf_release(&key); | |
855 | strbuf_release(&value); | |
856 | } | |
857 | ||
fb1d6dab JH |
858 | static void dissociate_from_references(void) |
859 | { | |
860 | static const char* argv[] = { "repack", "-a", "-d", NULL }; | |
0181681e | 861 | char *alternates = git_pathdup("objects/info/alternates"); |
fb1d6dab | 862 | |
0181681e AR |
863 | if (!access(alternates, F_OK)) { |
864 | if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) | |
865 | die(_("cannot repack to clean up")); | |
866 | if (unlink(alternates) && errno != ENOENT) | |
867 | die_errno(_("cannot unlink temporary alternates file")); | |
868 | } | |
869 | free(alternates); | |
fb1d6dab JH |
870 | } |
871 | ||
6c020421 | 872 | static int path_exists(const char *path) |
f9e377ad JK |
873 | { |
874 | struct stat sb; | |
875 | return !stat(path, &sb); | |
876 | } | |
877 | ||
8434c2f1 DB |
878 | int cmd_clone(int argc, const char **argv, const char *prefix) |
879 | { | |
24c61c44 | 880 | int is_bundle = 0, is_local; |
4fe788b1 | 881 | int reject_shallow = 0; |
8434c2f1 | 882 | const char *repo_name, *repo, *work_tree, *git_dir; |
0c454273 | 883 | char *path = NULL, *dir, *display_repo = NULL; |
dfaa209a | 884 | int dest_exists, real_dest_exists = 0; |
37148311 | 885 | const struct ref *refs, *remote_head; |
0c454273 | 886 | struct ref *remote_head_points_at = NULL; |
7a4ee28f | 887 | const struct ref *our_head_points_at; |
daf7898a | 888 | char *unborn_head = NULL; |
dccea605 | 889 | struct ref *mapped_refs = NULL; |
90498161 | 890 | const struct ref *ref; |
3e42cb3b | 891 | struct strbuf key = STRBUF_INIT; |
b5ff37ac | 892 | struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; |
1db4a75c | 893 | struct transport *transport = NULL; |
9e585046 | 894 | const char *src_ref_prefix = "refs/heads/"; |
6f48d39f | 895 | struct remote *remote; |
90498161 | 896 | int err = 0, complete_refs_before_fetch = 1; |
72c5f883 | 897 | int submodule_progress; |
f05da2b4 | 898 | int filter_submodules = 0; |
8434c2f1 | 899 | |
39835409 JT |
900 | struct transport_ls_refs_options transport_ls_refs_options = |
901 | TRANSPORT_LS_REFS_OPTIONS_INIT; | |
8434c2f1 | 902 | |
bbc30f99 | 903 | packet_trace_identity("clone"); |
552955ed SB |
904 | |
905 | git_config(git_clone_config, NULL); | |
906 | ||
37782920 | 907 | argc = parse_options(argc, argv, prefix, builtin_clone_options, |
8434c2f1 DB |
908 | builtin_clone_usage, 0); |
909 | ||
d52dc4b1 | 910 | if (argc > 2) |
e84d7b74 | 911 | usage_msg_opt(_("Too many arguments."), |
d52dc4b1 JN |
912 | builtin_clone_usage, builtin_clone_options); |
913 | ||
8434c2f1 | 914 | if (argc == 0) |
e84d7b74 | 915 | usage_msg_opt(_("You must specify a repository to clone."), |
d52dc4b1 | 916 | builtin_clone_usage, builtin_clone_options); |
8434c2f1 | 917 | |
859e5df9 | 918 | if (option_depth || option_since || option_not.nr) |
994c2aaf | 919 | deepen = 1; |
3e6e0edd | 920 | if (option_single_branch == -1) |
994c2aaf | 921 | option_single_branch = deepen ? 1 : 0; |
3e6e0edd | 922 | |
bc699afc JS |
923 | if (option_mirror) |
924 | option_bare = 1; | |
925 | ||
8434c2f1 DB |
926 | if (option_bare) { |
927 | if (option_origin) | |
246cac85 JNA |
928 | die(_("options '%s' and '%s %s' cannot be used together"), |
929 | "--bare", "--origin", option_origin); | |
95b63f1e | 930 | if (real_git_dir) |
12909b6b | 931 | die(_("options '%s' and '%s' cannot be used together"), "--bare", "--separate-git-dir"); |
8434c2f1 | 932 | option_no_checkout = 1; |
8434c2f1 DB |
933 | } |
934 | ||
8434c2f1 DB |
935 | repo_name = argv[0]; |
936 | ||
937 | path = get_repo_path(repo_name, &is_bundle); | |
0c454273 AH |
938 | if (path) { |
939 | FREE_AND_NULL(path); | |
0aaad415 | 940 | repo = absolute_pathdup(repo_name); |
0c454273 | 941 | } else if (strchr(repo_name, ':')) { |
8434c2f1 | 942 | repo = repo_name; |
46da295a JS |
943 | display_repo = transport_anonymize_url(repo); |
944 | } else | |
945 | die(_("repository '%s' does not exist"), repo_name); | |
8434c2f1 | 946 | |
5594bcad NTND |
947 | /* no need to be strict, transport_set_option() will validate it again */ |
948 | if (option_depth && atoi(option_depth) < 1) | |
949 | die(_("depth %s is not a positive number"), option_depth); | |
950 | ||
8434c2f1 DB |
951 | if (argc == 2) |
952 | dir = xstrdup(argv[1]); | |
953 | else | |
ed86301f AR |
954 | dir = git_url_basename(repo_name, is_bundle, option_bare); |
955 | strip_dir_trailing_slashes(dir); | |
8434c2f1 | 956 | |
6c020421 | 957 | dest_exists = path_exists(dir); |
55892d23 | 958 | if (dest_exists && !is_empty_dir(dir)) |
e84d7b74 ÆAB |
959 | die(_("destination path '%s' already exists and is not " |
960 | "an empty directory."), dir); | |
8434c2f1 | 961 | |
dfaa209a BW |
962 | if (real_git_dir) { |
963 | real_dest_exists = path_exists(real_git_dir); | |
964 | if (real_dest_exists && !is_empty_dir(real_git_dir)) | |
965 | die(_("repository path '%s' already exists and is not " | |
966 | "an empty directory."), real_git_dir); | |
967 | } | |
968 | ||
969 | ||
46da295a JS |
970 | strbuf_addf(&reflog_msg, "clone: from %s", |
971 | display_repo ? display_repo : repo); | |
972 | free(display_repo); | |
8434c2f1 DB |
973 | |
974 | if (option_bare) | |
975 | work_tree = NULL; | |
976 | else { | |
977 | work_tree = getenv("GIT_WORK_TREE"); | |
6c020421 | 978 | if (work_tree && path_exists(work_tree)) |
e84d7b74 | 979 | die(_("working tree '%s' already exists."), work_tree); |
8434c2f1 DB |
980 | } |
981 | ||
982 | if (option_bare || work_tree) | |
983 | git_dir = xstrdup(dir); | |
984 | else { | |
985 | work_tree = dir; | |
4e2d094d | 986 | git_dir = mkpathdup("%s/.git", dir); |
8434c2f1 DB |
987 | } |
988 | ||
ee0e3872 JK |
989 | atexit(remove_junk); |
990 | sigchain_push_common(remove_junk_on_signal); | |
991 | ||
8434c2f1 | 992 | if (!option_bare) { |
8e21d63b | 993 | if (safe_create_leading_directories_const(work_tree) < 0) |
e84d7b74 | 994 | die_errno(_("could not create leading directories of '%s'"), |
d824cbba | 995 | work_tree); |
d45420c1 JK |
996 | if (dest_exists) |
997 | junk_work_tree_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
998 | else if (mkdir(work_tree, 0777)) | |
16eff6c0 | 999 | die_errno(_("could not create work tree dir '%s'"), |
d824cbba | 1000 | work_tree); |
ee0e3872 | 1001 | junk_work_tree = work_tree; |
8434c2f1 DB |
1002 | set_git_work_tree(work_tree); |
1003 | } | |
8434c2f1 | 1004 | |
d45420c1 | 1005 | if (real_git_dir) { |
dfaa209a | 1006 | if (real_dest_exists) |
d45420c1 JK |
1007 | junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; |
1008 | junk_git_dir = real_git_dir; | |
1009 | } else { | |
1010 | if (dest_exists) | |
1011 | junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; | |
1012 | junk_git_dir = git_dir; | |
1013 | } | |
8e21d63b | 1014 | if (safe_create_leading_directories_const(git_dir) < 0) |
e84d7b74 | 1015 | die(_("could not create leading directories of '%s'"), git_dir); |
b57fb80a | 1016 | |
3781fcce ÆAB |
1017 | if (0 <= option_verbosity) { |
1018 | if (option_bare) | |
68b939b2 | 1019 | fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); |
3781fcce | 1020 | else |
68b939b2 | 1021 | fprintf(stderr, _("Cloning into '%s'...\n"), dir); |
3781fcce | 1022 | } |
31224cbd | 1023 | |
bb62e0a9 BW |
1024 | if (option_recurse_submodules.nr > 0) { |
1025 | struct string_list_item *item; | |
1026 | struct strbuf sb = STRBUF_INIT; | |
48072e3d | 1027 | int val; |
bb62e0a9 BW |
1028 | |
1029 | /* remove duplicates */ | |
1030 | string_list_sort(&option_recurse_submodules); | |
1031 | string_list_remove_duplicates(&option_recurse_submodules, 0); | |
1032 | ||
1033 | /* | |
1034 | * NEEDSWORK: In a multi-working-tree world, this needs to be | |
1035 | * set in the per-worktree config. | |
1036 | */ | |
1037 | for_each_string_list_item(item, &option_recurse_submodules) { | |
1038 | strbuf_addf(&sb, "submodule.active=%s", | |
1039 | item->string); | |
1040 | string_list_append(&option_config, | |
1041 | strbuf_detach(&sb, NULL)); | |
1042 | } | |
1043 | ||
48072e3d MK |
1044 | if (!git_config_get_bool("submodule.stickyRecursiveClone", &val) && |
1045 | val) | |
1046 | string_list_append(&option_config, "submodule.recurse=true"); | |
1047 | ||
31224cbd SB |
1048 | if (option_required_reference.nr && |
1049 | option_optional_reference.nr) | |
1050 | die(_("clone --recursive is not compatible with " | |
1051 | "both --reference and --reference-if-able")); | |
1052 | else if (option_required_reference.nr) { | |
1053 | string_list_append(&option_config, | |
1054 | "submodule.alternateLocation=superproject"); | |
1055 | string_list_append(&option_config, | |
1056 | "submodule.alternateErrorStrategy=die"); | |
1057 | } else if (option_optional_reference.nr) { | |
1058 | string_list_append(&option_config, | |
1059 | "submodule.alternateLocation=superproject"); | |
1060 | string_list_append(&option_config, | |
1061 | "submodule.alternateErrorStrategy=info"); | |
1062 | } | |
1063 | } | |
1064 | ||
32ba12da JS |
1065 | init_db(git_dir, real_git_dir, option_template, GIT_HASH_UNKNOWN, NULL, |
1066 | INIT_DB_QUIET); | |
33158701 | 1067 | |
27ff1fbc ÆAB |
1068 | if (real_git_dir) { |
1069 | free((char *)git_dir); | |
33158701 | 1070 | git_dir = real_git_dir; |
27ff1fbc | 1071 | } |
33158701 | 1072 | |
552955ed SB |
1073 | /* |
1074 | * additional config can be injected with -c, make sure it's included | |
1075 | * after init_db, which clears the entire config environment. | |
1076 | */ | |
84054f79 | 1077 | write_config(&option_config); |
8434c2f1 | 1078 | |
552955ed SB |
1079 | /* |
1080 | * re-read config after init_db and write_config to pick up any config | |
1081 | * injected by --template and --config, respectively. | |
1082 | */ | |
1083 | git_config(git_clone_config, NULL); | |
8434c2f1 | 1084 | |
4fe788b1 LL |
1085 | /* |
1086 | * If option_reject_shallow is specified from CLI option, | |
1087 | * ignore config_reject_shallow from git_clone_config. | |
1088 | */ | |
1089 | if (config_reject_shallow != -1) | |
1090 | reject_shallow = config_reject_shallow; | |
1091 | if (option_reject_shallow != -1) | |
1092 | reject_shallow = option_reject_shallow; | |
1093 | ||
f05da2b4 JS |
1094 | /* |
1095 | * If option_filter_submodules is specified from CLI option, | |
1096 | * ignore config_filter_submodules from git_clone_config. | |
1097 | */ | |
1098 | if (config_filter_submodules != -1) | |
1099 | filter_submodules = config_filter_submodules; | |
1100 | if (option_filter_submodules != -1) | |
1101 | filter_submodules = option_filter_submodules; | |
1102 | ||
1103 | /* | |
1104 | * Exit if the user seems to be doing something silly with submodule | |
1105 | * filter flags (but not with filter configs, as those should be | |
1106 | * set-and-forget). | |
1107 | */ | |
1108 | if (option_filter_submodules > 0 && !filter_options.choice) | |
1109 | die(_("the option '%s' requires '%s'"), | |
1110 | "--also-filter-submodules", "--filter"); | |
1111 | if (option_filter_submodules > 0 && !option_recurse_submodules.nr) | |
1112 | die(_("the option '%s' requires '%s'"), | |
1113 | "--also-filter-submodules", "--recurse-submodules"); | |
1114 | ||
de9ed3ef SB |
1115 | /* |
1116 | * apply the remote name provided by --origin only after this second | |
1117 | * call to git_config, to ensure it overrides all config-based values. | |
1118 | */ | |
538dc459 | 1119 | if (option_origin) { |
6dfadc89 | 1120 | free(remote_name); |
de9ed3ef | 1121 | remote_name = xstrdup(option_origin); |
6dfadc89 | 1122 | } |
de9ed3ef | 1123 | |
afe8a907 | 1124 | if (!remote_name) |
de9ed3ef SB |
1125 | remote_name = xstrdup("origin"); |
1126 | ||
1127 | if (!valid_remote_name(remote_name)) | |
1128 | die(_("'%s' is not a valid remote name"), remote_name); | |
8434c2f1 DB |
1129 | |
1130 | if (option_bare) { | |
bc699afc JS |
1131 | if (option_mirror) |
1132 | src_ref_prefix = "refs/"; | |
b5ff37ac | 1133 | strbuf_addstr(&branch_top, src_ref_prefix); |
8434c2f1 DB |
1134 | |
1135 | git_config_set("core.bare", "true"); | |
1136 | } else { | |
75ca3906 | 1137 | strbuf_addf(&branch_top, "refs/remotes/%s/", remote_name); |
bc699afc | 1138 | } |
8434c2f1 | 1139 | |
75ca3906 | 1140 | strbuf_addf(&key, "remote.%s.url", remote_name); |
df61c889 SR |
1141 | git_config_set(key.buf, repo); |
1142 | strbuf_reset(&key); | |
1143 | ||
0dab2468 | 1144 | if (option_no_tags) { |
75ca3906 | 1145 | strbuf_addf(&key, "remote.%s.tagOpt", remote_name); |
0dab2468 ÆAB |
1146 | git_config_set(key.buf, "--no-tags"); |
1147 | strbuf_reset(&key); | |
1148 | } | |
1149 | ||
f7415b4d | 1150 | if (option_required_reference.nr || option_optional_reference.nr) |
dbc92b07 | 1151 | setup_reference(); |
766ac6a6 | 1152 | |
47dbf10d | 1153 | if (option_sparse_checkout && git_sparse_checkout_init(dir)) |
d89f09c8 DS |
1154 | return 1; |
1155 | ||
75ca3906 | 1156 | remote = remote_get(remote_name); |
689f0396 | 1157 | |
1af8b8c0 RS |
1158 | refspec_appendf(&remote->fetch, "+%s*:%s*", src_ref_prefix, |
1159 | branch_top.buf); | |
8434c2f1 | 1160 | |
6f48d39f | 1161 | transport = transport_get(remote, remote->url[0]); |
822f0c4f | 1162 | transport_set_verbosity(transport, option_verbosity, option_progress); |
c915f11e | 1163 | transport->family = family; |
822f0c4f | 1164 | |
f38aa83f MB |
1165 | path = get_repo_path(remote->url[0], &is_bundle); |
1166 | is_local = option_local != 0 && path && !is_bundle; | |
1167 | if (is_local) { | |
1168 | if (option_depth) | |
1169 | warning(_("--depth is ignored in local clones; use file:// instead.")); | |
994c2aaf NTND |
1170 | if (option_since) |
1171 | warning(_("--shallow-since is ignored in local clones; use file:// instead.")); | |
859e5df9 NTND |
1172 | if (option_not.nr) |
1173 | warning(_("--shallow-exclude is ignored in local clones; use file:// instead.")); | |
548719fb JT |
1174 | if (filter_options.choice) |
1175 | warning(_("--filter is ignored in local clones; use file:// instead.")); | |
f38aa83f | 1176 | if (!access(mkpath("%s/shallow", path), F_OK)) { |
4fe788b1 LL |
1177 | if (reject_shallow) |
1178 | die(_("source repository is shallow, reject to clone.")); | |
f38aa83f MB |
1179 | if (option_local > 0) |
1180 | warning(_("source repository is shallow, ignoring --local")); | |
1181 | is_local = 0; | |
1182 | } | |
1183 | } | |
1184 | if (option_local > 0 && !is_local) | |
1185 | warning(_("--local is ignored")); | |
beea4152 | 1186 | transport->cloning = 1; |
8434c2f1 | 1187 | |
86fdd94d DS |
1188 | if (is_bundle) { |
1189 | struct bundle_header header = BUNDLE_HEADER_INIT; | |
1190 | int fd = read_bundle_header(path, &header); | |
1191 | int has_filter = header.filter.choice != LOFC_DISABLED; | |
1192 | ||
1193 | if (fd > 0) | |
1194 | close(fd); | |
1195 | bundle_header_release(&header); | |
1196 | if (has_filter) | |
1197 | die(_("cannot clone from filtered bundle")); | |
1198 | } | |
1199 | ||
643f918d | 1200 | transport_set_option(transport, TRANS_OPT_KEEP, "yes"); |
8434c2f1 | 1201 | |
4fe788b1 LL |
1202 | if (reject_shallow) |
1203 | transport_set_option(transport, TRANS_OPT_REJECT_SHALLOW, "1"); | |
643f918d JK |
1204 | if (option_depth) |
1205 | transport_set_option(transport, TRANS_OPT_DEPTH, | |
1206 | option_depth); | |
994c2aaf NTND |
1207 | if (option_since) |
1208 | transport_set_option(transport, TRANS_OPT_DEEPEN_SINCE, | |
1209 | option_since); | |
859e5df9 NTND |
1210 | if (option_not.nr) |
1211 | transport_set_option(transport, TRANS_OPT_DEEPEN_NOT, | |
1212 | (const char *)&option_not); | |
643f918d JK |
1213 | if (option_single_branch) |
1214 | transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); | |
8434c2f1 | 1215 | |
643f918d JK |
1216 | if (option_upload_pack) |
1217 | transport_set_option(transport, TRANS_OPT_UPLOADPACK, | |
1218 | option_upload_pack); | |
c6807a40 | 1219 | |
6e983059 JT |
1220 | if (server_options.nr) |
1221 | transport->server_options = &server_options; | |
1222 | ||
548719fb | 1223 | if (filter_options.choice) { |
cf9ceb5a MD |
1224 | const char *spec = |
1225 | expand_list_objects_filter_spec(&filter_options); | |
548719fb | 1226 | transport_set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, |
cf9ceb5a | 1227 | spec); |
548719fb JT |
1228 | transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1"); |
1229 | } | |
1230 | ||
1231 | if (transport->smart_options && !deepen && !filter_options.choice) | |
643f918d | 1232 | transport->smart_options->check_self_contained_and_connected = 1; |
8434c2f1 | 1233 | |
402c47d9 | 1234 | |
39835409 JT |
1235 | strvec_push(&transport_ls_refs_options.ref_prefixes, "HEAD"); |
1236 | refspec_ref_prefixes(&remote->fetch, | |
1237 | &transport_ls_refs_options.ref_prefixes); | |
402c47d9 | 1238 | if (option_branch) |
39835409 JT |
1239 | expand_ref_prefix(&transport_ls_refs_options.ref_prefixes, |
1240 | option_branch); | |
402c47d9 | 1241 | if (!option_no_tags) |
39835409 JT |
1242 | strvec_push(&transport_ls_refs_options.ref_prefixes, |
1243 | "refs/tags/"); | |
402c47d9 | 1244 | |
39835409 | 1245 | refs = transport_get_remote_refs(transport, &transport_ls_refs_options); |
8434c2f1 | 1246 | |
dccea605 JT |
1247 | if (refs) |
1248 | mapped_refs = wanted_peer_refs(refs, &remote->fetch); | |
1249 | ||
1250 | if (mapped_refs) { | |
b65dc2ce | 1251 | int hash_algo = hash_algo_by_ptr(transport_get_hash_algo(transport)); |
1252 | ||
1253 | /* | |
1254 | * Now that we know what algorithm the remote side is using, | |
1255 | * let's set ours to the same thing. | |
1256 | */ | |
47ac9703 | 1257 | initialize_repository_version(hash_algo, 1); |
b65dc2ce | 1258 | repo_set_hash_algo(the_repository, hash_algo); |
5b05795c MH |
1259 | /* |
1260 | * transport_get_remote_refs() may return refs with null sha-1 | |
1261 | * in mapped_refs (see struct transport->get_refs_list | |
1262 | * comment). In that case we need fetch it early because | |
1263 | * remote_head code below relies on it. | |
1264 | * | |
1265 | * for normal clones, transport_get_remote_refs() should | |
1266 | * return reliable ref set, we can delay cloning until after | |
1267 | * remote HEAD check. | |
1268 | */ | |
1269 | for (ref = refs; ref; ref = ref->next) | |
f4e54d02 | 1270 | if (is_null_oid(&ref->old_oid)) { |
5b05795c MH |
1271 | complete_refs_before_fetch = 0; |
1272 | break; | |
1273 | } | |
90498161 | 1274 | |
aab179d9 | 1275 | if (!is_local && !complete_refs_before_fetch) { |
6aacb7d8 JK |
1276 | if (transport_fetch_refs(transport, mapped_refs)) |
1277 | die(_("remote transport reported error")); | |
aab179d9 | 1278 | } |
86ac7518 | 1279 | } |
6b58df54 | 1280 | |
3d8314f8 JK |
1281 | remote_head = find_ref_by_name(refs, "HEAD"); |
1282 | remote_head_points_at = guess_remote_head(remote_head, mapped_refs, 0); | |
a3552aba | 1283 | |
3d8314f8 JK |
1284 | if (option_branch) { |
1285 | our_head_points_at = find_remote_branch(mapped_refs, option_branch); | |
1286 | if (!our_head_points_at) | |
1287 | die(_("Remote branch %s not found in upstream %s"), | |
1288 | option_branch, remote_name); | |
1289 | } else if (remote_head_points_at) { | |
1290 | our_head_points_at = remote_head_points_at; | |
1291 | } else if (remote_head) { | |
7a4ee28f | 1292 | our_head_points_at = NULL; |
3d8314f8 | 1293 | } else { |
6b58df54 | 1294 | const char *branch; |
6b58df54 | 1295 | |
3d8314f8 JK |
1296 | if (!mapped_refs) { |
1297 | warning(_("You appear to have cloned an empty repository.")); | |
1298 | option_no_checkout = 1; | |
1299 | } | |
0cc1b475 | 1300 | |
6b58df54 JK |
1301 | if (transport_ls_refs_options.unborn_head_target && |
1302 | skip_prefix(transport_ls_refs_options.unborn_head_target, | |
1303 | "refs/heads/", &branch)) { | |
daf7898a | 1304 | unborn_head = xstrdup(transport_ls_refs_options.unborn_head_target); |
6b58df54 JK |
1305 | } else { |
1306 | branch = git_default_branch_name(0); | |
daf7898a | 1307 | unborn_head = xstrfmt("refs/heads/%s", branch); |
0cc1b475 | 1308 | } |
6b58df54 | 1309 | |
cc8fcd1e JK |
1310 | /* |
1311 | * We may have selected a local default branch name "foo", | |
1312 | * and even though the remote's HEAD does not point there, | |
1313 | * it may still have a "foo" branch. If so, set it up so | |
1314 | * that we can follow the usual checkout code later. | |
1315 | * | |
1316 | * Note that for an empty repo we'll already have set | |
1317 | * option_no_checkout above, which would work against us here. | |
1318 | * But for an empty repo, find_remote_branch() can never find | |
1319 | * a match. | |
1320 | */ | |
1321 | our_head_points_at = find_remote_branch(mapped_refs, branch); | |
86ac7518 | 1322 | } |
8434c2f1 | 1323 | |
31b808a0 RT |
1324 | write_refspec_config(src_ref_prefix, our_head_points_at, |
1325 | remote_head_points_at, &branch_top); | |
1326 | ||
548719fb | 1327 | if (filter_options.choice) |
75ca3906 | 1328 | partial_clone_register(remote_name, &filter_options); |
548719fb | 1329 | |
6f48d39f NTND |
1330 | if (is_local) |
1331 | clone_local(path, git_dir); | |
dccea605 | 1332 | else if (mapped_refs && complete_refs_before_fetch) { |
6aacb7d8 JK |
1333 | if (transport_fetch_refs(transport, mapped_refs)) |
1334 | die(_("remote transport reported error")); | |
aab179d9 | 1335 | } |
8434c2f1 | 1336 | |
960b7d1c | 1337 | update_remote_refs(refs, mapped_refs, remote_head_points_at, |
548719fb | 1338 | branch_top.buf, reflog_msg.buf, transport, |
2b98478c | 1339 | !is_local); |
8434c2f1 | 1340 | |
daf7898a | 1341 | update_head(our_head_points_at, remote_head, unborn_head, reflog_msg.buf); |
1db4a75c | 1342 | |
72c5f883 JK |
1343 | /* |
1344 | * We want to show progress for recursive submodule clones iff | |
1345 | * we did so for the main clone. But only the transport knows | |
1346 | * the final decision for this flag, so we need to rescue the value | |
1347 | * before we free the transport. | |
1348 | */ | |
1349 | submodule_progress = transport->progress; | |
1350 | ||
58d4d7f1 | 1351 | transport_unlock_pack(transport, 0); |
6f48d39f | 1352 | transport_disconnect(transport); |
1db4a75c | 1353 | |
786b150c | 1354 | if (option_dissociate) { |
2d511cfc | 1355 | close_object_store(the_repository->objects); |
fb1d6dab | 1356 | dissociate_from_references(); |
786b150c | 1357 | } |
fb1d6dab | 1358 | |
d3b34622 | 1359 | junk_mode = JUNK_LEAVE_REPO; |
f05da2b4 | 1360 | err = checkout(submodule_progress, filter_submodules); |
8434c2f1 | 1361 | |
de9ed3ef | 1362 | free(remote_name); |
8434c2f1 | 1363 | strbuf_release(&reflog_msg); |
b5ff37ac MV |
1364 | strbuf_release(&branch_top); |
1365 | strbuf_release(&key); | |
0c454273 AH |
1366 | free_refs(mapped_refs); |
1367 | free_refs(remote_head_points_at); | |
daf7898a | 1368 | free(unborn_head); |
0c454273 AH |
1369 | free(dir); |
1370 | free(path); | |
1371 | UNLEAK(repo); | |
d3b34622 | 1372 | junk_mode = JUNK_LEAVE_ALL; |
50b67732 | 1373 | |
f36d4f83 | 1374 | transport_ls_refs_options_release(&transport_ls_refs_options); |
dfa7a6c5 | 1375 | return err; |
8434c2f1 | 1376 | } |