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Commit | Line | Data |
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8434c2f1 DB |
1 | /* |
2 | * Builtin "git clone" | |
3 | * | |
4 | * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>, | |
5 | * 2008 Daniel Barkalow <barkalow@iabervon.org> | |
6 | * Based on git-commit.sh by Junio C Hamano and Linus Torvalds | |
7 | * | |
8 | * Clone a repository into a different directory that does not yet exist. | |
9 | */ | |
10 | ||
c2e86add | 11 | #include "builtin.h" |
8434c2f1 DB |
12 | #include "parse-options.h" |
13 | #include "fetch-pack.h" | |
14 | #include "refs.h" | |
15 | #include "tree.h" | |
16 | #include "tree-walk.h" | |
17 | #include "unpack-trees.h" | |
18 | #include "transport.h" | |
19 | #include "strbuf.h" | |
20 | #include "dir.h" | |
3e8aded2 | 21 | #include "pack-refs.h" |
4a16d072 | 22 | #include "sigchain.h" |
a9f2c136 | 23 | #include "branch.h" |
8ef51733 | 24 | #include "remote.h" |
dfa7a6c5 | 25 | #include "run-command.h" |
8434c2f1 DB |
26 | |
27 | /* | |
28 | * Overall FIXMEs: | |
29 | * - respect DB_ENVIRONMENT for .git/objects. | |
30 | * | |
31 | * Implementation notes: | |
32 | * - dropping use-separate-remote and no-separate-remote compatibility | |
33 | * | |
34 | */ | |
35 | static const char * const builtin_clone_usage[] = { | |
1b1dd23f | 36 | "git clone [options] [--] <repo> [<dir>]", |
8434c2f1 DB |
37 | NULL |
38 | }; | |
39 | ||
5bd631b3 | 40 | static int option_no_checkout, option_bare, option_mirror; |
e7fed18a | 41 | static int option_local, option_no_hardlinks, option_shared, option_recursive; |
8434c2f1 DB |
42 | static char *option_template, *option_reference, *option_depth; |
43 | static char *option_origin = NULL; | |
7a4ee28f | 44 | static char *option_branch = NULL; |
b57fb80a | 45 | static const char *real_git_dir; |
8434c2f1 | 46 | static char *option_upload_pack = "git-upload-pack"; |
5bd631b3 | 47 | static int option_verbosity; |
5a518ad4 | 48 | static int option_progress; |
8434c2f1 DB |
49 | |
50 | static struct option builtin_clone_options[] = { | |
5bd631b3 | 51 | OPT__VERBOSITY(&option_verbosity), |
5a518ad4 TRC |
52 | OPT_BOOLEAN(0, "progress", &option_progress, |
53 | "force progress reporting"), | |
8434c2f1 DB |
54 | OPT_BOOLEAN('n', "no-checkout", &option_no_checkout, |
55 | "don't create a checkout"), | |
56 | OPT_BOOLEAN(0, "bare", &option_bare, "create a bare repository"), | |
ebc9d420 JH |
57 | { OPTION_BOOLEAN, 0, "naked", &option_bare, NULL, |
58 | "create a bare repository", | |
59 | PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, | |
bc699afc JS |
60 | OPT_BOOLEAN(0, "mirror", &option_mirror, |
61 | "create a mirror repository (implies bare)"), | |
8434c2f1 DB |
62 | OPT_BOOLEAN('l', "local", &option_local, |
63 | "to clone from a local repository"), | |
64 | OPT_BOOLEAN(0, "no-hardlinks", &option_no_hardlinks, | |
65 | "don't use local hardlinks, always copy"), | |
66 | OPT_BOOLEAN('s', "shared", &option_shared, | |
67 | "setup as shared repository"), | |
e7fed18a | 68 | OPT_BOOLEAN(0, "recursive", &option_recursive, |
ebc9d420 | 69 | "initialize submodules in the clone"), |
3446a54c | 70 | OPT_BOOLEAN(0, "recurse-submodules", &option_recursive, |
ccdd3da6 | 71 | "initialize submodules in the clone"), |
5027fa86 MG |
72 | OPT_STRING(0, "template", &option_template, "template-directory", |
73 | "directory from which templates will be used"), | |
8434c2f1 DB |
74 | OPT_STRING(0, "reference", &option_reference, "repo", |
75 | "reference repository"), | |
76 | OPT_STRING('o', "origin", &option_origin, "branch", | |
02ed2458 | 77 | "use <branch> instead of 'origin' to track upstream"), |
7a4ee28f JK |
78 | OPT_STRING('b', "branch", &option_branch, "branch", |
79 | "checkout <branch> instead of the remote's HEAD"), | |
8434c2f1 DB |
80 | OPT_STRING('u', "upload-pack", &option_upload_pack, "path", |
81 | "path to git-upload-pack on the remote"), | |
82 | OPT_STRING(0, "depth", &option_depth, "depth", | |
83 | "create a shallow clone of that depth"), | |
09ffc706 | 84 | OPT_STRING(0, "separate-git-dir", &real_git_dir, "gitdir", |
b57fb80a | 85 | "separate git dir from working tree"), |
8434c2f1 DB |
86 | |
87 | OPT_END() | |
88 | }; | |
89 | ||
e7fed18a JH |
90 | static const char *argv_submodule[] = { |
91 | "submodule", "update", "--init", "--recursive", NULL | |
92 | }; | |
93 | ||
8434c2f1 DB |
94 | static char *get_repo_path(const char *repo, int *is_bundle) |
95 | { | |
96 | static char *suffix[] = { "/.git", ".git", "" }; | |
97 | static char *bundle_suffix[] = { ".bundle", "" }; | |
98 | struct stat st; | |
99 | int i; | |
100 | ||
101 | for (i = 0; i < ARRAY_SIZE(suffix); i++) { | |
102 | const char *path; | |
103 | path = mkpath("%s%s", repo, suffix[i]); | |
90b4a71c | 104 | if (is_directory(path)) { |
8434c2f1 | 105 | *is_bundle = 0; |
e2a57aac | 106 | return xstrdup(absolute_path(path)); |
8434c2f1 DB |
107 | } |
108 | } | |
109 | ||
110 | for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { | |
111 | const char *path; | |
112 | path = mkpath("%s%s", repo, bundle_suffix[i]); | |
113 | if (!stat(path, &st) && S_ISREG(st.st_mode)) { | |
114 | *is_bundle = 1; | |
e2a57aac | 115 | return xstrdup(absolute_path(path)); |
8434c2f1 DB |
116 | } |
117 | } | |
118 | ||
119 | return NULL; | |
120 | } | |
121 | ||
6612f877 | 122 | static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) |
8434c2f1 | 123 | { |
b8c5db35 | 124 | const char *end = repo + strlen(repo), *start; |
8a94bc7b | 125 | char *dir; |
b8c5db35 JS |
126 | |
127 | /* | |
8a94bc7b | 128 | * Strip trailing spaces, slashes and /.git |
b8c5db35 | 129 | */ |
8a94bc7b | 130 | while (repo < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) |
b8c5db35 JS |
131 | end--; |
132 | if (end - repo > 5 && is_dir_sep(end[-5]) && | |
133 | !strncmp(end - 4, ".git", 4)) { | |
134 | end -= 5; | |
135 | while (repo < end && is_dir_sep(end[-1])) | |
136 | end--; | |
137 | } | |
138 | ||
139 | /* | |
140 | * Find last component, but be prepared that repo could have | |
141 | * the form "remote.example.com:foo.git", i.e. no slash | |
142 | * in the directory part. | |
143 | */ | |
144 | start = end; | |
145 | while (repo < start && !is_dir_sep(start[-1]) && start[-1] != ':') | |
146 | start--; | |
147 | ||
148 | /* | |
149 | * Strip .{bundle,git}. | |
150 | */ | |
151 | if (is_bundle) { | |
152 | if (end - start > 7 && !strncmp(end - 7, ".bundle", 7)) | |
153 | end -= 7; | |
154 | } else { | |
155 | if (end - start > 4 && !strncmp(end - 4, ".git", 4)) | |
156 | end -= 4; | |
8434c2f1 DB |
157 | } |
158 | ||
6612f877 | 159 | if (is_bare) { |
32716a2c MV |
160 | struct strbuf result = STRBUF_INIT; |
161 | strbuf_addf(&result, "%.*s.git", (int)(end - start), start); | |
2af202be | 162 | dir = strbuf_detach(&result, NULL); |
8a94bc7b AR |
163 | } else |
164 | dir = xstrndup(start, end - start); | |
165 | /* | |
166 | * Replace sequences of 'control' characters and whitespace | |
167 | * with one ascii space, remove leading and trailing spaces. | |
168 | */ | |
169 | if (*dir) { | |
170 | char *out = dir; | |
171 | int prev_space = 1 /* strip leading whitespace */; | |
172 | for (end = dir; *end; ++end) { | |
173 | char ch = *end; | |
174 | if ((unsigned char)ch < '\x20') | |
175 | ch = '\x20'; | |
176 | if (isspace(ch)) { | |
177 | if (prev_space) | |
178 | continue; | |
179 | prev_space = 1; | |
180 | } else | |
181 | prev_space = 0; | |
182 | *out++ = ch; | |
183 | } | |
184 | *out = '\0'; | |
185 | if (out > dir && prev_space) | |
186 | out[-1] = '\0'; | |
6612f877 | 187 | } |
8a94bc7b | 188 | return dir; |
8434c2f1 DB |
189 | } |
190 | ||
44a68fd5 CB |
191 | static void strip_trailing_slashes(char *dir) |
192 | { | |
193 | char *end = dir + strlen(dir); | |
194 | ||
195 | while (dir < end - 1 && is_dir_sep(end[-1])) | |
196 | end--; | |
197 | *end = '\0'; | |
198 | } | |
199 | ||
8434c2f1 DB |
200 | static void setup_reference(const char *repo) |
201 | { | |
202 | const char *ref_git; | |
203 | char *ref_git_copy; | |
204 | ||
205 | struct remote *remote; | |
206 | struct transport *transport; | |
207 | const struct ref *extra; | |
208 | ||
e2a57aac | 209 | ref_git = real_path(option_reference); |
8434c2f1 DB |
210 | |
211 | if (is_directory(mkpath("%s/.git/objects", ref_git))) | |
212 | ref_git = mkpath("%s/.git", ref_git); | |
213 | else if (!is_directory(mkpath("%s/objects", ref_git))) | |
e84d7b74 | 214 | die(_("reference repository '%s' is not a local directory."), |
8434c2f1 DB |
215 | option_reference); |
216 | ||
217 | ref_git_copy = xstrdup(ref_git); | |
218 | ||
219 | add_to_alternates_file(ref_git_copy); | |
220 | ||
221 | remote = remote_get(ref_git_copy); | |
222 | transport = transport_get(remote, ref_git_copy); | |
223 | for (extra = transport_get_remote_refs(transport); extra; | |
224 | extra = extra->next) | |
225 | add_extra_ref(extra->name, extra->old_sha1, 0); | |
226 | ||
227 | transport_disconnect(transport); | |
228 | ||
229 | free(ref_git_copy); | |
230 | } | |
231 | ||
b9e125e0 | 232 | static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest) |
8434c2f1 DB |
233 | { |
234 | struct dirent *de; | |
235 | struct stat buf; | |
236 | int src_len, dest_len; | |
237 | DIR *dir; | |
238 | ||
b9e125e0 | 239 | dir = opendir(src->buf); |
8434c2f1 | 240 | if (!dir) |
e84d7b74 | 241 | die_errno(_("failed to open '%s'"), src->buf); |
8434c2f1 | 242 | |
b9e125e0 | 243 | if (mkdir(dest->buf, 0777)) { |
8434c2f1 | 244 | if (errno != EEXIST) |
e84d7b74 | 245 | die_errno(_("failed to create directory '%s'"), dest->buf); |
b9e125e0 | 246 | else if (stat(dest->buf, &buf)) |
e84d7b74 | 247 | die_errno(_("failed to stat '%s'"), dest->buf); |
8434c2f1 | 248 | else if (!S_ISDIR(buf.st_mode)) |
e84d7b74 | 249 | die(_("%s exists and is not a directory"), dest->buf); |
8434c2f1 DB |
250 | } |
251 | ||
b9e125e0 MV |
252 | strbuf_addch(src, '/'); |
253 | src_len = src->len; | |
254 | strbuf_addch(dest, '/'); | |
255 | dest_len = dest->len; | |
8434c2f1 DB |
256 | |
257 | while ((de = readdir(dir)) != NULL) { | |
b9e125e0 MV |
258 | strbuf_setlen(src, src_len); |
259 | strbuf_addstr(src, de->d_name); | |
260 | strbuf_setlen(dest, dest_len); | |
261 | strbuf_addstr(dest, de->d_name); | |
262 | if (stat(src->buf, &buf)) { | |
e84d7b74 | 263 | warning (_("failed to stat %s\n"), src->buf); |
8434c2f1 DB |
264 | continue; |
265 | } | |
266 | if (S_ISDIR(buf.st_mode)) { | |
267 | if (de->d_name[0] != '.') | |
268 | copy_or_link_directory(src, dest); | |
269 | continue; | |
270 | } | |
271 | ||
b9e125e0 | 272 | if (unlink(dest->buf) && errno != ENOENT) |
e84d7b74 | 273 | die_errno(_("failed to unlink '%s'"), dest->buf); |
fdabc242 | 274 | if (!option_no_hardlinks) { |
b9e125e0 | 275 | if (!link(src->buf, dest->buf)) |
fdabc242 DB |
276 | continue; |
277 | if (option_local) | |
e84d7b74 | 278 | die_errno(_("failed to create link '%s'"), dest->buf); |
fdabc242 | 279 | option_no_hardlinks = 1; |
8434c2f1 | 280 | } |
f7835a25 | 281 | if (copy_file_with_time(dest->buf, src->buf, 0666)) |
e84d7b74 | 282 | die_errno(_("failed to copy file to '%s'"), dest->buf); |
8434c2f1 | 283 | } |
689ef4d4 | 284 | closedir(dir); |
8434c2f1 DB |
285 | } |
286 | ||
287 | static const struct ref *clone_local(const char *src_repo, | |
288 | const char *dest_repo) | |
289 | { | |
290 | const struct ref *ret; | |
b9e125e0 MV |
291 | struct strbuf src = STRBUF_INIT; |
292 | struct strbuf dest = STRBUF_INIT; | |
8434c2f1 DB |
293 | struct remote *remote; |
294 | struct transport *transport; | |
295 | ||
296 | if (option_shared) | |
297 | add_to_alternates_file(src_repo); | |
298 | else { | |
b9e125e0 MV |
299 | strbuf_addf(&src, "%s/objects", src_repo); |
300 | strbuf_addf(&dest, "%s/objects", dest_repo); | |
301 | copy_or_link_directory(&src, &dest); | |
302 | strbuf_release(&src); | |
303 | strbuf_release(&dest); | |
8434c2f1 DB |
304 | } |
305 | ||
306 | remote = remote_get(src_repo); | |
307 | transport = transport_get(remote, src_repo); | |
308 | ret = transport_get_remote_refs(transport); | |
309 | transport_disconnect(transport); | |
28ba96ab | 310 | if (0 <= option_verbosity) |
e84d7b74 | 311 | printf(_("done.\n")); |
8434c2f1 DB |
312 | return ret; |
313 | } | |
314 | ||
315 | static const char *junk_work_tree; | |
316 | static const char *junk_git_dir; | |
e161acd1 | 317 | static pid_t junk_pid; |
8434c2f1 DB |
318 | |
319 | static void remove_junk(void) | |
320 | { | |
f285a2d7 | 321 | struct strbuf sb = STRBUF_INIT; |
8434c2f1 DB |
322 | if (getpid() != junk_pid) |
323 | return; | |
8434c2f1 DB |
324 | if (junk_git_dir) { |
325 | strbuf_addstr(&sb, junk_git_dir); | |
326 | remove_dir_recursively(&sb, 0); | |
327 | strbuf_reset(&sb); | |
328 | } | |
329 | if (junk_work_tree) { | |
330 | strbuf_addstr(&sb, junk_work_tree); | |
331 | remove_dir_recursively(&sb, 0); | |
332 | strbuf_reset(&sb); | |
333 | } | |
334 | } | |
335 | ||
336 | static void remove_junk_on_signal(int signo) | |
337 | { | |
338 | remove_junk(); | |
4a16d072 | 339 | sigchain_pop(signo); |
8434c2f1 DB |
340 | raise(signo); |
341 | } | |
342 | ||
5bdc32d3 NP |
343 | static struct ref *wanted_peer_refs(const struct ref *refs, |
344 | struct refspec *refspec) | |
8434c2f1 DB |
345 | { |
346 | struct ref *local_refs = NULL; | |
347 | struct ref **tail = &local_refs; | |
8434c2f1 DB |
348 | |
349 | get_fetch_map(refs, refspec, &tail, 0); | |
468386a9 JS |
350 | if (!option_mirror) |
351 | get_fetch_map(refs, tag_refspec, &tail, 0); | |
8434c2f1 | 352 | |
5bdc32d3 NP |
353 | return local_refs; |
354 | } | |
355 | ||
356 | static void write_remote_refs(const struct ref *local_refs) | |
357 | { | |
358 | const struct ref *r; | |
359 | ||
8434c2f1 | 360 | for (r = local_refs; r; r = r->next) |
3e8aded2 JH |
361 | add_extra_ref(r->peer_ref->name, r->old_sha1, 0); |
362 | ||
363 | pack_refs(PACK_REFS_ALL); | |
364 | clear_extra_refs(); | |
8434c2f1 DB |
365 | } |
366 | ||
367 | int cmd_clone(int argc, const char **argv, const char *prefix) | |
368 | { | |
24c61c44 | 369 | int is_bundle = 0, is_local; |
8434c2f1 DB |
370 | struct stat buf; |
371 | const char *repo_name, *repo, *work_tree, *git_dir; | |
372 | char *path, *dir; | |
55892d23 | 373 | int dest_exists; |
37148311 | 374 | const struct ref *refs, *remote_head; |
7a4ee28f JK |
375 | const struct ref *remote_head_points_at; |
376 | const struct ref *our_head_points_at; | |
37148311 | 377 | struct ref *mapped_refs; |
b5ff37ac MV |
378 | struct strbuf key = STRBUF_INIT, value = STRBUF_INIT; |
379 | struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; | |
1db4a75c | 380 | struct transport *transport = NULL; |
bc699afc | 381 | char *src_ref_prefix = "refs/heads/"; |
dfa7a6c5 | 382 | int err = 0; |
8434c2f1 | 383 | |
689f0396 DB |
384 | struct refspec *refspec; |
385 | const char *fetch_pattern; | |
8434c2f1 DB |
386 | |
387 | junk_pid = getpid(); | |
388 | ||
bbc30f99 | 389 | packet_trace_identity("clone"); |
37782920 | 390 | argc = parse_options(argc, argv, prefix, builtin_clone_options, |
8434c2f1 DB |
391 | builtin_clone_usage, 0); |
392 | ||
d52dc4b1 | 393 | if (argc > 2) |
e84d7b74 | 394 | usage_msg_opt(_("Too many arguments."), |
d52dc4b1 JN |
395 | builtin_clone_usage, builtin_clone_options); |
396 | ||
8434c2f1 | 397 | if (argc == 0) |
e84d7b74 | 398 | usage_msg_opt(_("You must specify a repository to clone."), |
d52dc4b1 | 399 | builtin_clone_usage, builtin_clone_options); |
8434c2f1 | 400 | |
bc699afc JS |
401 | if (option_mirror) |
402 | option_bare = 1; | |
403 | ||
8434c2f1 DB |
404 | if (option_bare) { |
405 | if (option_origin) | |
e84d7b74 | 406 | die(_("--bare and --origin %s options are incompatible."), |
8434c2f1 DB |
407 | option_origin); |
408 | option_no_checkout = 1; | |
8434c2f1 DB |
409 | } |
410 | ||
411 | if (!option_origin) | |
412 | option_origin = "origin"; | |
413 | ||
414 | repo_name = argv[0]; | |
415 | ||
416 | path = get_repo_path(repo_name, &is_bundle); | |
417 | if (path) | |
e2a57aac | 418 | repo = xstrdup(absolute_path(repo_name)); |
8434c2f1 | 419 | else if (!strchr(repo_name, ':')) |
d3e1ddfd | 420 | die(_("repository '%s' does not exist"), repo_name); |
8434c2f1 DB |
421 | else |
422 | repo = repo_name; | |
24c61c44 NTND |
423 | is_local = path && !is_bundle; |
424 | if (is_local && option_depth) | |
e84d7b74 | 425 | warning(_("--depth is ignored in local clones; use file:// instead.")); |
8434c2f1 DB |
426 | |
427 | if (argc == 2) | |
428 | dir = xstrdup(argv[1]); | |
429 | else | |
6612f877 | 430 | dir = guess_dir_name(repo_name, is_bundle, option_bare); |
44a68fd5 | 431 | strip_trailing_slashes(dir); |
8434c2f1 | 432 | |
55892d23 AP |
433 | dest_exists = !stat(dir, &buf); |
434 | if (dest_exists && !is_empty_dir(dir)) | |
e84d7b74 ÆAB |
435 | die(_("destination path '%s' already exists and is not " |
436 | "an empty directory."), dir); | |
8434c2f1 | 437 | |
8434c2f1 DB |
438 | strbuf_addf(&reflog_msg, "clone: from %s", repo); |
439 | ||
440 | if (option_bare) | |
441 | work_tree = NULL; | |
442 | else { | |
443 | work_tree = getenv("GIT_WORK_TREE"); | |
444 | if (work_tree && !stat(work_tree, &buf)) | |
e84d7b74 | 445 | die(_("working tree '%s' already exists."), work_tree); |
8434c2f1 DB |
446 | } |
447 | ||
448 | if (option_bare || work_tree) | |
449 | git_dir = xstrdup(dir); | |
450 | else { | |
451 | work_tree = dir; | |
452 | git_dir = xstrdup(mkpath("%s/.git", dir)); | |
453 | } | |
454 | ||
455 | if (!option_bare) { | |
456 | junk_work_tree = work_tree; | |
8e21d63b | 457 | if (safe_create_leading_directories_const(work_tree) < 0) |
e84d7b74 | 458 | die_errno(_("could not create leading directories of '%s'"), |
d824cbba | 459 | work_tree); |
55892d23 | 460 | if (!dest_exists && mkdir(work_tree, 0755)) |
e84d7b74 | 461 | die_errno(_("could not create work tree dir '%s'."), |
d824cbba | 462 | work_tree); |
8434c2f1 DB |
463 | set_git_work_tree(work_tree); |
464 | } | |
465 | junk_git_dir = git_dir; | |
466 | atexit(remove_junk); | |
57b235a4 | 467 | sigchain_push_common(remove_junk_on_signal); |
8434c2f1 | 468 | |
50b5f420 | 469 | setenv(CONFIG_ENVIRONMENT, mkpath("%s/config", git_dir), 1); |
8434c2f1 | 470 | |
8e21d63b | 471 | if (safe_create_leading_directories_const(git_dir) < 0) |
e84d7b74 | 472 | die(_("could not create leading directories of '%s'"), git_dir); |
b57fb80a NTND |
473 | |
474 | set_git_dir_init(git_dir, real_git_dir, 0); | |
475 | if (real_git_dir) | |
476 | git_dir = real_git_dir; | |
8434c2f1 | 477 | |
3781fcce ÆAB |
478 | if (0 <= option_verbosity) { |
479 | if (option_bare) | |
5cde5989 | 480 | printf(_("Cloning into bare repository %s...\n"), dir); |
3781fcce | 481 | else |
5cde5989 | 482 | printf(_("Cloning into %s...\n"), dir); |
3781fcce | 483 | } |
28ba96ab | 484 | init_db(option_template, INIT_DB_QUIET); |
8434c2f1 | 485 | |
5b8063b5 JS |
486 | /* |
487 | * At this point, the config exists, so we do not need the | |
488 | * environment variable. We actually need to unset it, too, to | |
489 | * re-enable parsing of the global configs. | |
490 | */ | |
491 | unsetenv(CONFIG_ENVIRONMENT); | |
492 | ||
9bd81e42 | 493 | git_config(git_default_config, NULL); |
8434c2f1 DB |
494 | |
495 | if (option_bare) { | |
bc699afc JS |
496 | if (option_mirror) |
497 | src_ref_prefix = "refs/"; | |
b5ff37ac | 498 | strbuf_addstr(&branch_top, src_ref_prefix); |
8434c2f1 DB |
499 | |
500 | git_config_set("core.bare", "true"); | |
501 | } else { | |
b5ff37ac | 502 | strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin); |
bc699afc | 503 | } |
8434c2f1 | 504 | |
689f0396 DB |
505 | strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf); |
506 | ||
bc699afc | 507 | if (option_mirror || !option_bare) { |
8434c2f1 | 508 | /* Configure the remote */ |
689f0396 DB |
509 | strbuf_addf(&key, "remote.%s.fetch", option_origin); |
510 | git_config_set_multivar(key.buf, value.buf, "^$", 0); | |
511 | strbuf_reset(&key); | |
512 | ||
bc699afc | 513 | if (option_mirror) { |
b5ff37ac MV |
514 | strbuf_addf(&key, "remote.%s.mirror", option_origin); |
515 | git_config_set(key.buf, "true"); | |
516 | strbuf_reset(&key); | |
bc699afc | 517 | } |
8434c2f1 DB |
518 | } |
519 | ||
df61c889 SR |
520 | strbuf_addf(&key, "remote.%s.url", option_origin); |
521 | git_config_set(key.buf, repo); | |
522 | strbuf_reset(&key); | |
523 | ||
766ac6a6 SR |
524 | if (option_reference) |
525 | setup_reference(git_dir); | |
526 | ||
689f0396 DB |
527 | fetch_pattern = value.buf; |
528 | refspec = parse_fetch_refspec(1, &fetch_pattern); | |
529 | ||
530 | strbuf_reset(&value); | |
8434c2f1 | 531 | |
24c61c44 | 532 | if (is_local) { |
8434c2f1 | 533 | refs = clone_local(path, git_dir); |
5bdc32d3 NP |
534 | mapped_refs = wanted_peer_refs(refs, refspec); |
535 | } else { | |
766ac6a6 | 536 | struct remote *remote = remote_get(option_origin); |
1db4a75c | 537 | transport = transport_get(remote, remote->url[0]); |
8434c2f1 | 538 | |
37b78c25 | 539 | if (!transport->get_refs_list || !transport->fetch) |
e84d7b74 | 540 | die(_("Don't know how to clone %s"), transport->url); |
37b78c25 | 541 | |
8434c2f1 DB |
542 | transport_set_option(transport, TRANS_OPT_KEEP, "yes"); |
543 | ||
544 | if (option_depth) | |
545 | transport_set_option(transport, TRANS_OPT_DEPTH, | |
546 | option_depth); | |
547 | ||
d01b3c02 | 548 | transport_set_verbosity(transport, option_verbosity, option_progress); |
8434c2f1 | 549 | |
837c8767 SH |
550 | if (option_upload_pack) |
551 | transport_set_option(transport, TRANS_OPT_UPLOADPACK, | |
552 | option_upload_pack); | |
553 | ||
8434c2f1 | 554 | refs = transport_get_remote_refs(transport); |
5bdc32d3 NP |
555 | if (refs) { |
556 | mapped_refs = wanted_peer_refs(refs, refspec); | |
557 | transport_fetch_refs(transport, mapped_refs); | |
558 | } | |
8434c2f1 DB |
559 | } |
560 | ||
86ac7518 SR |
561 | if (refs) { |
562 | clear_extra_refs(); | |
8434c2f1 | 563 | |
5bdc32d3 | 564 | write_remote_refs(mapped_refs); |
8434c2f1 | 565 | |
6cb4e6cc | 566 | remote_head = find_ref_by_name(refs, "HEAD"); |
7a4ee28f JK |
567 | remote_head_points_at = |
568 | guess_remote_head(remote_head, mapped_refs, 0); | |
569 | ||
570 | if (option_branch) { | |
571 | struct strbuf head = STRBUF_INIT; | |
572 | strbuf_addstr(&head, src_ref_prefix); | |
573 | strbuf_addstr(&head, option_branch); | |
574 | our_head_points_at = | |
575 | find_ref_by_name(mapped_refs, head.buf); | |
576 | strbuf_release(&head); | |
577 | ||
578 | if (!our_head_points_at) { | |
e84d7b74 ÆAB |
579 | warning(_("Remote branch %s not found in " |
580 | "upstream %s, using HEAD instead"), | |
7a4ee28f JK |
581 | option_branch, option_origin); |
582 | our_head_points_at = remote_head_points_at; | |
583 | } | |
584 | } | |
585 | else | |
586 | our_head_points_at = remote_head_points_at; | |
86ac7518 SR |
587 | } |
588 | else { | |
e84d7b74 | 589 | warning(_("You appear to have cloned an empty repository.")); |
7a4ee28f JK |
590 | our_head_points_at = NULL; |
591 | remote_head_points_at = NULL; | |
86ac7518 SR |
592 | remote_head = NULL; |
593 | option_no_checkout = 1; | |
5cd12b85 | 594 | if (!option_bare) |
a9f2c136 | 595 | install_branch_config(0, "master", option_origin, |
5cd12b85 | 596 | "refs/heads/master"); |
86ac7518 | 597 | } |
8434c2f1 | 598 | |
7a4ee28f JK |
599 | if (remote_head_points_at && !option_bare) { |
600 | struct strbuf head_ref = STRBUF_INIT; | |
601 | strbuf_addstr(&head_ref, branch_top.buf); | |
602 | strbuf_addstr(&head_ref, "HEAD"); | |
603 | create_symref(head_ref.buf, | |
604 | remote_head_points_at->peer_ref->name, | |
605 | reflog_msg.buf); | |
606 | } | |
8434c2f1 | 607 | |
7a4ee28f JK |
608 | if (our_head_points_at) { |
609 | /* Local default branch link */ | |
610 | create_symref("HEAD", our_head_points_at->name, NULL); | |
8434c2f1 | 611 | if (!option_bare) { |
7a4ee28f JK |
612 | const char *head = skip_prefix(our_head_points_at->name, |
613 | "refs/heads/"); | |
8434c2f1 | 614 | update_ref(reflog_msg.buf, "HEAD", |
7a4ee28f | 615 | our_head_points_at->old_sha1, |
8434c2f1 | 616 | NULL, 0, DIE_ON_ERR); |
a9f2c136 | 617 | install_branch_config(0, head, option_origin, |
7a4ee28f | 618 | our_head_points_at->name); |
8434c2f1 DB |
619 | } |
620 | } else if (remote_head) { | |
621 | /* Source had detached HEAD pointing somewhere. */ | |
7a4ee28f | 622 | if (!option_bare) { |
8434c2f1 DB |
623 | update_ref(reflog_msg.buf, "HEAD", |
624 | remote_head->old_sha1, | |
625 | NULL, REF_NODEREF, DIE_ON_ERR); | |
7a4ee28f JK |
626 | our_head_points_at = remote_head; |
627 | } | |
8434c2f1 DB |
628 | } else { |
629 | /* Nothing to checkout out */ | |
630 | if (!option_no_checkout) | |
e84d7b74 ÆAB |
631 | warning(_("remote HEAD refers to nonexistent ref, " |
632 | "unable to checkout.\n")); | |
8434c2f1 DB |
633 | option_no_checkout = 1; |
634 | } | |
635 | ||
12d49966 | 636 | if (transport) { |
1db4a75c | 637 | transport_unlock_pack(transport); |
12d49966 JK |
638 | transport_disconnect(transport); |
639 | } | |
1db4a75c | 640 | |
8434c2f1 DB |
641 | if (!option_no_checkout) { |
642 | struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); | |
643 | struct unpack_trees_options opts; | |
644 | struct tree *tree; | |
645 | struct tree_desc t; | |
646 | int fd; | |
647 | ||
648 | /* We need to be in the new work tree for the checkout */ | |
649 | setup_work_tree(); | |
650 | ||
651 | fd = hold_locked_index(lock_file, 1); | |
652 | ||
653 | memset(&opts, 0, sizeof opts); | |
654 | opts.update = 1; | |
a73bc127 JS |
655 | opts.merge = 1; |
656 | opts.fn = oneway_merge; | |
5bd631b3 | 657 | opts.verbose_update = (option_verbosity > 0); |
a73bc127 | 658 | opts.src_index = &the_index; |
8434c2f1 DB |
659 | opts.dst_index = &the_index; |
660 | ||
7a4ee28f | 661 | tree = parse_tree_indirect(our_head_points_at->old_sha1); |
8434c2f1 DB |
662 | parse_tree(tree); |
663 | init_tree_desc(&t, tree->buffer, tree->size); | |
664 | unpack_trees(1, &t, &opts); | |
665 | ||
666 | if (write_cache(fd, active_cache, active_nr) || | |
667 | commit_locked_index(lock_file)) | |
e84d7b74 | 668 | die(_("unable to write new index file")); |
dfa7a6c5 JK |
669 | |
670 | err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1), | |
d01a8e32 BS |
671 | sha1_to_hex(our_head_points_at->old_sha1), "1", |
672 | NULL); | |
e7fed18a JH |
673 | |
674 | if (!err && option_recursive) | |
675 | err = run_command_v_opt(argv_submodule, RUN_GIT_CMD); | |
8434c2f1 DB |
676 | } |
677 | ||
678 | strbuf_release(&reflog_msg); | |
b5ff37ac MV |
679 | strbuf_release(&branch_top); |
680 | strbuf_release(&key); | |
681 | strbuf_release(&value); | |
8434c2f1 | 682 | junk_pid = 0; |
dfa7a6c5 | 683 | return err; |
8434c2f1 | 684 | } |