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782c2d65 DB |
1 | #include "cache.h" |
2 | #include "builtin.h" | |
3 | #include "parse-options.h" | |
4 | #include "refs.h" | |
5 | #include "commit.h" | |
6 | #include "tree.h" | |
7 | #include "tree-walk.h" | |
8 | #include "unpack-trees.h" | |
9 | #include "dir.h" | |
10 | #include "run-command.h" | |
11 | #include "merge-recursive.h" | |
12 | #include "branch.h" | |
13 | #include "diff.h" | |
14 | #include "revision.h" | |
79a1e6b4 | 15 | #include "remote.h" |
782c2d65 DB |
16 | |
17 | static const char * const checkout_usage[] = { | |
18 | "git checkout [options] <branch>", | |
19 | "git checkout [options] [<branch>] -- <file>...", | |
20 | NULL, | |
21 | }; | |
22 | ||
23 | static int post_checkout_hook(struct commit *old, struct commit *new, | |
24 | int changed) | |
25 | { | |
26 | struct child_process proc; | |
27 | const char *name = git_path("hooks/post-checkout"); | |
28 | const char *argv[5]; | |
29 | ||
30 | if (access(name, X_OK) < 0) | |
31 | return 0; | |
32 | ||
33 | memset(&proc, 0, sizeof(proc)); | |
34 | argv[0] = name; | |
35 | argv[1] = xstrdup(sha1_to_hex(old->object.sha1)); | |
36 | argv[2] = xstrdup(sha1_to_hex(new->object.sha1)); | |
37 | argv[3] = changed ? "1" : "0"; | |
38 | argv[4] = NULL; | |
39 | proc.argv = argv; | |
40 | proc.no_stdin = 1; | |
41 | proc.stdout_to_stderr = 1; | |
42 | return run_command(&proc); | |
43 | } | |
44 | ||
45 | static int update_some(const unsigned char *sha1, const char *base, int baselen, | |
46 | const char *pathname, unsigned mode, int stage) | |
47 | { | |
48 | int len; | |
49 | struct cache_entry *ce; | |
50 | ||
51 | if (S_ISGITLINK(mode)) | |
52 | return 0; | |
53 | ||
54 | if (S_ISDIR(mode)) | |
55 | return READ_TREE_RECURSIVE; | |
56 | ||
57 | len = baselen + strlen(pathname); | |
58 | ce = xcalloc(1, cache_entry_size(len)); | |
59 | hashcpy(ce->sha1, sha1); | |
60 | memcpy(ce->name, base, baselen); | |
61 | memcpy(ce->name + baselen, pathname, len - baselen); | |
62 | ce->ce_flags = create_ce_flags(len, 0); | |
63 | ce->ce_mode = create_ce_mode(mode); | |
64 | add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static int read_tree_some(struct tree *tree, const char **pathspec) | |
69 | { | |
70 | int newfd; | |
71 | struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); | |
72 | newfd = hold_locked_index(lock_file, 1); | |
73 | read_cache(); | |
74 | ||
75 | read_tree_recursive(tree, "", 0, 0, pathspec, update_some); | |
76 | ||
77 | if (write_cache(newfd, active_cache, active_nr) || | |
78 | commit_locked_index(lock_file)) | |
79 | die("unable to write new index file"); | |
80 | ||
81 | /* update the index with the given tree's info | |
82 | * for all args, expanding wildcards, and exit | |
83 | * with any non-zero return code. | |
84 | */ | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static int checkout_paths(const char **pathspec) | |
89 | { | |
90 | int pos; | |
91 | struct checkout state; | |
92 | static char *ps_matched; | |
93 | unsigned char rev[20]; | |
94 | int flag; | |
95 | struct commit *head; | |
96 | ||
97 | for (pos = 0; pathspec[pos]; pos++) | |
98 | ; | |
99 | ps_matched = xcalloc(1, pos); | |
100 | ||
101 | for (pos = 0; pos < active_nr; pos++) { | |
102 | struct cache_entry *ce = active_cache[pos]; | |
103 | pathspec_match(pathspec, ps_matched, ce->name, 0); | |
104 | } | |
105 | ||
106 | if (report_path_error(ps_matched, pathspec, 0)) | |
107 | return 1; | |
108 | ||
109 | memset(&state, 0, sizeof(state)); | |
110 | state.force = 1; | |
111 | state.refresh_cache = 1; | |
112 | for (pos = 0; pos < active_nr; pos++) { | |
113 | struct cache_entry *ce = active_cache[pos]; | |
114 | if (pathspec_match(pathspec, NULL, ce->name, 0)) { | |
115 | checkout_entry(ce, &state, NULL); | |
116 | } | |
117 | } | |
118 | ||
119 | resolve_ref("HEAD", rev, 0, &flag); | |
120 | head = lookup_commit_reference_gently(rev, 1); | |
121 | ||
122 | return post_checkout_hook(head, head, 0); | |
123 | } | |
124 | ||
125 | static void show_local_changes(struct object *head) | |
126 | { | |
127 | struct rev_info rev; | |
128 | /* I think we want full paths, even if we're in a subdirectory. */ | |
129 | init_revisions(&rev, NULL); | |
130 | rev.abbrev = 0; | |
131 | rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS; | |
132 | add_pending_object(&rev, head, NULL); | |
133 | run_diff_index(&rev, 0); | |
134 | } | |
135 | ||
136 | static void describe_detached_head(char *msg, struct commit *commit) | |
137 | { | |
138 | struct strbuf sb; | |
139 | strbuf_init(&sb, 0); | |
140 | parse_commit(commit); | |
141 | pretty_print_commit(CMIT_FMT_ONELINE, commit, &sb, 0, "", "", 0, 0); | |
142 | fprintf(stderr, "%s %s... %s\n", msg, | |
143 | find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), sb.buf); | |
144 | strbuf_release(&sb); | |
145 | } | |
146 | ||
147 | static int reset_to_new(struct tree *tree, int quiet) | |
148 | { | |
149 | struct unpack_trees_options opts; | |
150 | struct tree_desc tree_desc; | |
151 | memset(&opts, 0, sizeof(opts)); | |
152 | opts.head_idx = -1; | |
153 | opts.update = 1; | |
154 | opts.reset = 1; | |
155 | opts.merge = 1; | |
156 | opts.fn = oneway_merge; | |
157 | opts.verbose_update = !quiet; | |
158 | parse_tree(tree); | |
159 | init_tree_desc(&tree_desc, tree->buffer, tree->size); | |
160 | if (unpack_trees(1, &tree_desc, &opts)) | |
161 | return 128; | |
162 | return 0; | |
163 | } | |
164 | ||
165 | static void reset_clean_to_new(struct tree *tree, int quiet) | |
166 | { | |
167 | struct unpack_trees_options opts; | |
168 | struct tree_desc tree_desc; | |
169 | memset(&opts, 0, sizeof(opts)); | |
170 | opts.head_idx = -1; | |
171 | opts.skip_unmerged = 1; | |
172 | opts.reset = 1; | |
173 | opts.merge = 1; | |
174 | opts.fn = oneway_merge; | |
175 | opts.verbose_update = !quiet; | |
176 | parse_tree(tree); | |
177 | init_tree_desc(&tree_desc, tree->buffer, tree->size); | |
178 | if (unpack_trees(1, &tree_desc, &opts)) | |
179 | exit(128); | |
180 | } | |
181 | ||
182 | struct checkout_opts { | |
183 | int quiet; | |
184 | int merge; | |
185 | int force; | |
186 | ||
187 | char *new_branch; | |
188 | int new_branch_log; | |
189 | int track; | |
190 | }; | |
191 | ||
192 | struct branch_info { | |
193 | const char *name; /* The short name used */ | |
194 | const char *path; /* The full name of a real branch */ | |
195 | struct commit *commit; /* The named commit */ | |
196 | }; | |
197 | ||
198 | static void setup_branch_path(struct branch_info *branch) | |
199 | { | |
200 | struct strbuf buf; | |
201 | strbuf_init(&buf, 0); | |
202 | strbuf_addstr(&buf, "refs/heads/"); | |
203 | strbuf_addstr(&buf, branch->name); | |
204 | branch->path = strbuf_detach(&buf, NULL); | |
205 | } | |
206 | ||
207 | static int merge_working_tree(struct checkout_opts *opts, | |
208 | struct branch_info *old, struct branch_info *new, | |
209 | const char *prefix) | |
210 | { | |
211 | int ret; | |
212 | struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); | |
213 | int newfd = hold_locked_index(lock_file, 1); | |
214 | read_cache(); | |
215 | ||
216 | if (opts->force) { | |
217 | ret = reset_to_new(new->commit->tree, opts->quiet); | |
218 | if (ret) | |
219 | return ret; | |
220 | } else { | |
221 | struct tree_desc trees[2]; | |
222 | struct tree *tree; | |
223 | struct unpack_trees_options topts; | |
224 | memset(&topts, 0, sizeof(topts)); | |
225 | topts.head_idx = -1; | |
226 | ||
227 | refresh_cache(REFRESH_QUIET); | |
228 | ||
229 | if (unmerged_cache()) { | |
230 | ret = opts->merge ? -1 : | |
231 | error("you need to resolve your current index first"); | |
232 | } else { | |
233 | topts.update = 1; | |
234 | topts.merge = 1; | |
235 | topts.gently = opts->merge; | |
236 | topts.fn = twoway_merge; | |
237 | topts.dir = xcalloc(1, sizeof(*topts.dir)); | |
238 | topts.dir->show_ignored = 1; | |
239 | topts.dir->exclude_per_dir = ".gitignore"; | |
240 | topts.prefix = prefix; | |
241 | tree = parse_tree_indirect(old->commit->object.sha1); | |
242 | init_tree_desc(&trees[0], tree->buffer, tree->size); | |
243 | tree = parse_tree_indirect(new->commit->object.sha1); | |
244 | init_tree_desc(&trees[1], tree->buffer, tree->size); | |
245 | ret = unpack_trees(2, trees, &topts); | |
246 | } | |
247 | if (ret) { | |
248 | /* | |
249 | * Unpack couldn't do a trivial merge; either | |
250 | * give up or do a real merge, depending on | |
251 | * whether the merge flag was used. | |
252 | */ | |
253 | struct tree *result; | |
254 | struct tree *work; | |
255 | if (!opts->merge) | |
256 | return 1; | |
257 | parse_commit(old->commit); | |
258 | ||
259 | /* Do more real merge */ | |
260 | ||
261 | /* | |
262 | * We update the index fully, then write the | |
263 | * tree from the index, then merge the new | |
264 | * branch with the current tree, with the old | |
265 | * branch as the base. Then we reset the index | |
266 | * (but not the working tree) to the new | |
267 | * branch, leaving the working tree as the | |
268 | * merged version, but skipping unmerged | |
269 | * entries in the index. | |
270 | */ | |
271 | ||
272 | add_files_to_cache(0, NULL, NULL); | |
273 | work = write_tree_from_memory(); | |
274 | ||
275 | ret = reset_to_new(new->commit->tree, opts->quiet); | |
276 | if (ret) | |
277 | return ret; | |
278 | merge_trees(new->commit->tree, work, old->commit->tree, | |
279 | new->name, "local", &result); | |
280 | reset_clean_to_new(new->commit->tree, opts->quiet); | |
281 | } | |
282 | } | |
283 | ||
284 | if (write_cache(newfd, active_cache, active_nr) || | |
285 | commit_locked_index(lock_file)) | |
286 | die("unable to write new index file"); | |
287 | ||
288 | if (!opts->force) | |
289 | show_local_changes(&new->commit->object); | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
79a1e6b4 JH |
294 | /* |
295 | * We really should allow cb_data... Yuck | |
296 | */ | |
297 | static const char *branch_name; | |
298 | static int branch_name_len; | |
299 | static char *found_remote; | |
300 | static char *found_merge; | |
301 | static int read_branch_config(const char *var, const char *value) | |
302 | { | |
303 | const char *name; | |
304 | if (prefixcmp(var, "branch.")) | |
305 | return 0; /* not ours */ | |
306 | name = var + strlen("branch."); | |
307 | if (strncmp(name, branch_name, branch_name_len) || | |
308 | name[branch_name_len] != '.') | |
309 | return 0; /* not ours either */ | |
310 | if (!strcmp(name + branch_name_len, ".remote")) { | |
311 | /* | |
312 | * Yeah, I know Christian's clean-up should | |
313 | * be used here, but the topic is based on an | |
314 | * older fork point. | |
315 | */ | |
316 | if (!value) | |
317 | return error("'%s' not string", var); | |
318 | found_remote = xstrdup(value); | |
319 | return 0; | |
320 | } | |
321 | if (!strcmp(name + branch_name_len, ".merge")) { | |
322 | if (!value) | |
323 | return error("'%s' not string", var); | |
324 | found_merge = xstrdup(value); | |
325 | return 0; | |
326 | } | |
327 | return 0; /* not ours */ | |
328 | } | |
329 | ||
330 | static int find_build_base(const char *ours, char **base) | |
331 | { | |
332 | struct remote *remote; | |
333 | struct refspec spec; | |
334 | ||
335 | *base = NULL; | |
336 | ||
337 | branch_name = ours + strlen("refs/heads/"); | |
338 | branch_name_len = strlen(branch_name); | |
339 | found_remote = NULL; | |
340 | found_merge = NULL; | |
341 | git_config(read_branch_config); | |
342 | ||
343 | if (!found_remote || !found_merge) { | |
344 | cleanup: | |
345 | free(found_remote); | |
346 | free(found_merge); | |
347 | return 0; | |
348 | } | |
349 | ||
350 | remote = remote_get(found_remote); | |
351 | memset(&spec, 0, sizeof(spec)); | |
352 | spec.src = found_merge; | |
353 | if (remote_find_tracking(remote, &spec)) | |
354 | goto cleanup; | |
355 | *base = spec.dst; | |
356 | return 1; | |
357 | } | |
358 | ||
359 | static void adjust_to_tracking(struct branch_info *new, struct checkout_opts *opts) | |
360 | { | |
361 | /* | |
362 | * We have switched to a new branch; is it building on | |
363 | * top of another branch, and if so does that other branch | |
364 | * have changes we do not have yet? | |
365 | */ | |
366 | char *base; | |
367 | unsigned char sha1[20]; | |
368 | struct commit *ours, *theirs; | |
369 | const char *msgfmt; | |
370 | char symmetric[84]; | |
371 | int show_log; | |
372 | ||
373 | if (!resolve_ref(new->path, sha1, 1, NULL)) | |
374 | return; | |
375 | ours = lookup_commit(sha1); | |
376 | ||
377 | if (!find_build_base(new->path, &base)) | |
378 | return; | |
379 | ||
380 | sprintf(symmetric, "%s", sha1_to_hex(sha1)); | |
381 | ||
382 | /* | |
383 | * Ok, it is tracking base; is it ahead of us? | |
384 | */ | |
385 | if (!resolve_ref(base, sha1, 1, NULL)) | |
386 | return; | |
387 | theirs = lookup_commit(sha1); | |
388 | ||
389 | sprintf(symmetric + 40, "...%s", sha1_to_hex(sha1)); | |
390 | ||
391 | if (!hashcmp(sha1, ours->object.sha1)) | |
392 | return; /* we are the same */ | |
393 | ||
394 | show_log = 1; | |
395 | if (in_merge_bases(theirs, &ours, 1)) { | |
396 | msgfmt = "You are ahead of the tracked branch '%s'\n"; | |
397 | show_log = 0; | |
398 | } | |
399 | else if (in_merge_bases(ours, &theirs, 1)) | |
400 | msgfmt = "Your branch can be fast-forwarded to the tracked branch '%s'\n"; | |
401 | else | |
402 | msgfmt = "Both your branch and the tracked branch '%s' have own changes, you would eventually need to merge\n"; | |
403 | ||
404 | if (!prefixcmp(base, "refs/remotes/")) | |
405 | base += strlen("refs/remotes/"); | |
406 | fprintf(stderr, msgfmt, base); | |
407 | ||
408 | if (show_log) { | |
409 | const char *args[32]; | |
410 | int ac; | |
411 | ||
412 | ac = 0; | |
413 | args[ac++] = "log"; | |
414 | args[ac++] = "--pretty=oneline"; | |
415 | args[ac++] = "--abbrev-commit"; | |
416 | args[ac++] = "--left-right"; | |
417 | args[ac++] = "--boundary"; | |
418 | args[ac++] = symmetric; | |
419 | args[ac++] = "--"; | |
420 | args[ac] = NULL; | |
421 | ||
422 | run_command_v_opt(args, RUN_GIT_CMD); | |
423 | } | |
424 | } | |
425 | ||
426 | ||
782c2d65 DB |
427 | static void update_refs_for_switch(struct checkout_opts *opts, |
428 | struct branch_info *old, | |
429 | struct branch_info *new) | |
430 | { | |
431 | struct strbuf msg; | |
432 | const char *old_desc; | |
433 | if (opts->new_branch) { | |
434 | create_branch(old->name, opts->new_branch, new->name, 0, | |
435 | opts->new_branch_log, opts->track); | |
436 | new->name = opts->new_branch; | |
437 | setup_branch_path(new); | |
438 | } | |
439 | ||
440 | strbuf_init(&msg, 0); | |
441 | old_desc = old->name; | |
442 | if (!old_desc) | |
443 | old_desc = sha1_to_hex(old->commit->object.sha1); | |
444 | strbuf_addf(&msg, "checkout: moving from %s to %s", | |
445 | old_desc, new->name); | |
446 | ||
447 | if (new->path) { | |
448 | create_symref("HEAD", new->path, msg.buf); | |
449 | if (!opts->quiet) { | |
450 | if (old->path && !strcmp(new->path, old->path)) | |
451 | fprintf(stderr, "Already on \"%s\"\n", | |
452 | new->name); | |
453 | else | |
454 | fprintf(stderr, "Switched to%s branch \"%s\"\n", | |
455 | opts->new_branch ? " a new" : "", | |
456 | new->name); | |
457 | } | |
458 | } else if (strcmp(new->name, "HEAD")) { | |
459 | update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL, | |
460 | REF_NODEREF, DIE_ON_ERR); | |
461 | if (!opts->quiet) { | |
462 | if (old->path) | |
463 | fprintf(stderr, "Note: moving to \"%s\" which isn't a local branch\nIf you want to create a new branch from this checkout, you may do so\n(now or later) by using -b with the checkout command again. Example:\n git checkout -b <new_branch_name>\n", new->name); | |
464 | describe_detached_head("HEAD is now at", new->commit); | |
465 | } | |
466 | } | |
467 | remove_branch_state(); | |
468 | strbuf_release(&msg); | |
79a1e6b4 JH |
469 | if (new->path) |
470 | adjust_to_tracking(new, opts); | |
782c2d65 DB |
471 | } |
472 | ||
473 | static int switch_branches(struct checkout_opts *opts, | |
474 | struct branch_info *new, const char *prefix) | |
475 | { | |
476 | int ret = 0; | |
477 | struct branch_info old; | |
478 | unsigned char rev[20]; | |
479 | int flag; | |
480 | memset(&old, 0, sizeof(old)); | |
481 | old.path = resolve_ref("HEAD", rev, 0, &flag); | |
482 | old.commit = lookup_commit_reference_gently(rev, 1); | |
483 | if (!(flag & REF_ISSYMREF)) | |
484 | old.path = NULL; | |
485 | ||
486 | if (old.path && !prefixcmp(old.path, "refs/heads/")) | |
487 | old.name = old.path + strlen("refs/heads/"); | |
488 | ||
489 | if (!new->name) { | |
490 | new->name = "HEAD"; | |
491 | new->commit = old.commit; | |
492 | if (!new->commit) | |
493 | die("You are on a branch yet to be born"); | |
494 | parse_commit(new->commit); | |
495 | } | |
496 | ||
497 | /* | |
498 | * If the new thing isn't a branch and isn't HEAD and we're | |
499 | * not starting a new branch, and we want messages, and we | |
500 | * weren't on a branch, and we're moving to a new commit, | |
501 | * describe the old commit. | |
502 | */ | |
503 | if (!new->path && strcmp(new->name, "HEAD") && !opts->new_branch && | |
504 | !opts->quiet && !old.path && new->commit != old.commit) | |
505 | describe_detached_head("Previous HEAD position was", old.commit); | |
506 | ||
507 | if (!old.commit) { | |
508 | if (!opts->quiet) { | |
509 | fprintf(stderr, "warning: You appear to be on a branch yet to be born.\n"); | |
510 | fprintf(stderr, "warning: Forcing checkout of %s.\n", new->name); | |
511 | } | |
512 | opts->force = 1; | |
513 | } | |
514 | ||
515 | ret = merge_working_tree(opts, &old, new, prefix); | |
516 | if (ret) | |
517 | return ret; | |
518 | ||
519 | update_refs_for_switch(opts, &old, new); | |
520 | ||
521 | return post_checkout_hook(old.commit, new->commit, 1); | |
522 | } | |
523 | ||
524 | static int branch_track = 0; | |
525 | ||
526 | static int git_checkout_config(const char *var, const char *value) | |
527 | { | |
528 | if (!strcmp(var, "branch.autosetupmerge")) | |
529 | branch_track = git_config_bool(var, value); | |
530 | ||
531 | return git_default_config(var, value); | |
532 | } | |
533 | ||
534 | int cmd_checkout(int argc, const char **argv, const char *prefix) | |
535 | { | |
536 | struct checkout_opts opts; | |
537 | unsigned char rev[20]; | |
538 | const char *arg; | |
539 | struct branch_info new; | |
540 | struct tree *source_tree = NULL; | |
541 | struct option options[] = { | |
542 | OPT__QUIET(&opts.quiet), | |
543 | OPT_STRING('b', NULL, &opts.new_branch, "new branch", "branch"), | |
544 | OPT_BOOLEAN('l', NULL, &opts.new_branch_log, "log for new branch"), | |
545 | OPT_BOOLEAN( 0 , "track", &opts.track, "track"), | |
546 | OPT_BOOLEAN('f', NULL, &opts.force, "force"), | |
547 | OPT_BOOLEAN('m', NULL, &opts.merge, "merge"), | |
548 | }; | |
549 | ||
550 | memset(&opts, 0, sizeof(opts)); | |
551 | memset(&new, 0, sizeof(new)); | |
552 | ||
553 | git_config(git_checkout_config); | |
554 | ||
555 | opts.track = branch_track; | |
556 | ||
557 | argc = parse_options(argc, argv, options, checkout_usage, 0); | |
558 | if (argc) { | |
559 | arg = argv[0]; | |
560 | if (get_sha1(arg, rev)) | |
561 | ; | |
562 | else if ((new.commit = lookup_commit_reference_gently(rev, 1))) { | |
563 | new.name = arg; | |
564 | setup_branch_path(&new); | |
565 | if (resolve_ref(new.path, rev, 1, NULL)) | |
566 | new.commit = lookup_commit_reference(rev); | |
567 | else | |
568 | new.path = NULL; | |
569 | parse_commit(new.commit); | |
570 | source_tree = new.commit->tree; | |
571 | argv++; | |
572 | argc--; | |
573 | } else if ((source_tree = parse_tree_indirect(rev))) { | |
574 | argv++; | |
575 | argc--; | |
576 | } | |
577 | } | |
578 | ||
579 | if (argc && !strcmp(argv[0], "--")) { | |
580 | argv++; | |
581 | argc--; | |
582 | } | |
583 | ||
584 | if (!opts.new_branch && (opts.track != branch_track)) | |
585 | die("git checkout: --track and --no-track require -b"); | |
586 | ||
587 | if (opts.force && opts.merge) | |
588 | die("git checkout: -f and -m are incompatible"); | |
589 | ||
590 | if (argc) { | |
591 | const char **pathspec = get_pathspec(prefix, argv); | |
592 | /* Checkout paths */ | |
593 | if (opts.new_branch || opts.force || opts.merge) { | |
594 | if (argc == 1) { | |
595 | die("git checkout: updating paths is incompatible with switching branches/forcing\nDid you intend to checkout '%s' which can not be resolved as commit?", argv[0]); | |
596 | } else { | |
597 | die("git checkout: updating paths is incompatible with switching branches/forcing"); | |
598 | } | |
599 | } | |
600 | ||
601 | if (source_tree) | |
602 | read_tree_some(source_tree, pathspec); | |
603 | else | |
604 | read_cache(); | |
605 | return checkout_paths(pathspec); | |
606 | } | |
607 | ||
608 | if (new.name && !new.commit) { | |
609 | die("Cannot switch branch to a non-commit."); | |
610 | } | |
611 | ||
612 | return switch_branches(&opts, &new, prefix); | |
613 | } |