2 * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <sys/queue.h>
38 #include "got_error.h"
39 #include "got_repository.h"
40 #include "got_reference.h"
41 #include "got_object.h"
43 #include "got_cancel.h"
44 #include "got_worktree.h"
45 #include "got_opentemp.h"
48 #include "got_lib_worktree.h"
49 #include "got_lib_sha1.h"
50 #include "got_lib_fileindex.h"
51 #include "got_lib_inflate.h"
52 #include "got_lib_delta.h"
53 #include "got_lib_object.h"
54 #include "got_lib_object_parse.h"
55 #include "got_lib_object_create.h"
56 #include "got_lib_object_idset.h"
57 #include "got_lib_diff.h"
58 #include "got_lib_gotconfig.h"
61 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
64 #define GOT_MERGE_LABEL_MERGED "merged change"
65 #define GOT_MERGE_LABEL_BASE "3-way merge base"
67 static mode_t apply_umask(mode_t);
69 static const struct got_error *
70 create_meta_file(const char *path_got, const char *name, const char *content)
72 const struct got_error *err = NULL;
75 if (asprintf(&path, "%s/%s", path_got, name) == -1)
76 return got_error_from_errno("asprintf");
78 err = got_path_create_file(path, content);
83 static const struct got_error *
84 update_meta_file(const char *path_got, const char *name, const char *content)
86 const struct got_error *err = NULL;
91 if (asprintf(&path, "%s/%s", path_got, name) == -1) {
92 err = got_error_from_errno("asprintf");
97 err = got_opentemp_named(&tmppath, &tmpfile, path, "");
102 int len = fprintf(tmpfile, "%s\n", content);
103 if (len != strlen(content) + 1) {
104 err = got_error_from_errno2("fprintf", tmppath);
109 if (rename(tmppath, path) != 0) {
110 err = got_error_from_errno3("rename", tmppath, path);
116 if (fclose(tmpfile) == EOF && err == NULL)
117 err = got_error_from_errno2("fclose", tmppath);
122 static const struct got_error *
123 write_head_ref(const char *path_got, struct got_reference *head_ref)
125 const struct got_error *err = NULL;
128 if (got_ref_is_symbolic(head_ref)) {
129 refstr = got_ref_to_str(head_ref);
131 return got_error_from_errno("got_ref_to_str");
133 refstr = strdup(got_ref_get_name(head_ref));
135 return got_error_from_errno("strdup");
137 err = update_meta_file(path_got, GOT_WORKTREE_HEAD_REF, refstr);
142 const struct got_error *
143 got_worktree_init(const char *path, struct got_reference *head_ref,
144 const char *prefix, struct got_repository *repo)
146 const struct got_error *err = NULL;
147 struct got_object_id *commit_id = NULL;
149 uint32_t uuid_status;
151 char *path_got = NULL;
152 char *formatstr = NULL;
153 char *absprefix = NULL;
154 char *basestr = NULL;
155 char *uuidstr = NULL;
157 if (strcmp(path, got_repo_get_path(repo)) == 0) {
158 err = got_error(GOT_ERR_WORKTREE_REPO);
162 err = got_ref_resolve(&commit_id, repo, head_ref);
165 err = got_object_get_type(&obj_type, repo, commit_id);
168 if (obj_type != GOT_OBJ_TYPE_COMMIT)
169 return got_error(GOT_ERR_OBJ_TYPE);
171 if (!got_path_is_absolute(prefix)) {
172 if (asprintf(&absprefix, "/%s", prefix) == -1)
173 return got_error_from_errno("asprintf");
176 /* Create top-level directory (may already exist). */
177 if (mkdir(path, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
178 err = got_error_from_errno2("mkdir", path);
182 /* Create .got directory (may already exist). */
183 if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
184 err = got_error_from_errno("asprintf");
187 if (mkdir(path_got, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
188 err = got_error_from_errno2("mkdir", path_got);
192 /* Create an empty lock file. */
193 err = create_meta_file(path_got, GOT_WORKTREE_LOCK, NULL);
197 /* Create an empty file index. */
198 err = create_meta_file(path_got, GOT_WORKTREE_FILE_INDEX, NULL);
202 /* Write the HEAD reference. */
203 err = write_head_ref(path_got, head_ref);
207 /* Record our base commit. */
208 err = got_object_id_str(&basestr, commit_id);
211 err = create_meta_file(path_got, GOT_WORKTREE_BASE_COMMIT, basestr);
215 /* Store path to repository. */
216 err = create_meta_file(path_got, GOT_WORKTREE_REPOSITORY,
217 got_repo_get_path(repo));
221 /* Store in-repository path prefix. */
222 err = create_meta_file(path_got, GOT_WORKTREE_PATH_PREFIX,
223 absprefix ? absprefix : prefix);
228 uuid_create(&uuid, &uuid_status);
229 if (uuid_status != uuid_s_ok) {
230 err = got_error_uuid(uuid_status, "uuid_create");
233 uuid_to_string(&uuid, &uuidstr, &uuid_status);
234 if (uuid_status != uuid_s_ok) {
235 err = got_error_uuid(uuid_status, "uuid_to_string");
238 err = create_meta_file(path_got, GOT_WORKTREE_UUID, uuidstr);
242 /* Stamp work tree with format file. */
243 if (asprintf(&formatstr, "%d", GOT_WORKTREE_FORMAT_VERSION) == -1) {
244 err = got_error_from_errno("asprintf");
247 err = create_meta_file(path_got, GOT_WORKTREE_FORMAT, formatstr);
261 const struct got_error *
262 got_worktree_match_path_prefix(int *match, struct got_worktree *worktree,
263 const char *path_prefix)
265 char *absprefix = NULL;
267 if (!got_path_is_absolute(path_prefix)) {
268 if (asprintf(&absprefix, "/%s", path_prefix) == -1)
269 return got_error_from_errno("asprintf");
271 *match = (strcmp(absprefix ? absprefix : path_prefix,
272 worktree->path_prefix) == 0);
278 got_worktree_get_head_ref_name(struct got_worktree *worktree)
280 return worktree->head_ref_name;
283 const struct got_error *
284 got_worktree_set_head_ref(struct got_worktree *worktree,
285 struct got_reference *head_ref)
287 const struct got_error *err = NULL;
288 char *path_got = NULL, *head_ref_name = NULL;
290 if (asprintf(&path_got, "%s/%s", worktree->root_path,
291 GOT_WORKTREE_GOT_DIR) == -1) {
292 err = got_error_from_errno("asprintf");
297 head_ref_name = strdup(got_ref_get_name(head_ref));
298 if (head_ref_name == NULL) {
299 err = got_error_from_errno("strdup");
303 err = write_head_ref(path_got, head_ref);
307 free(worktree->head_ref_name);
308 worktree->head_ref_name = head_ref_name;
316 struct got_object_id *
317 got_worktree_get_base_commit_id(struct got_worktree *worktree)
319 return worktree->base_commit_id;
322 const struct got_error *
323 got_worktree_set_base_commit_id(struct got_worktree *worktree,
324 struct got_repository *repo, struct got_object_id *commit_id)
326 const struct got_error *err;
327 struct got_object *obj = NULL;
329 char *path_got = NULL;
331 if (asprintf(&path_got, "%s/%s", worktree->root_path,
332 GOT_WORKTREE_GOT_DIR) == -1) {
333 err = got_error_from_errno("asprintf");
338 err = got_object_open(&obj, repo, commit_id);
342 if (obj->type != GOT_OBJ_TYPE_COMMIT) {
343 err = got_error(GOT_ERR_OBJ_TYPE);
347 /* Record our base commit. */
348 err = got_object_id_str(&id_str, commit_id);
351 err = update_meta_file(path_got, GOT_WORKTREE_BASE_COMMIT, id_str);
355 free(worktree->base_commit_id);
356 worktree->base_commit_id = got_object_id_dup(commit_id);
357 if (worktree->base_commit_id == NULL) {
358 err = got_error_from_errno("got_object_id_dup");
363 got_object_close(obj);
369 const struct got_gotconfig *
370 got_worktree_get_gotconfig(struct got_worktree *worktree)
372 return worktree->gotconfig;
375 static const struct got_error *
376 lock_worktree(struct got_worktree *worktree, int operation)
378 if (flock(worktree->lockfd, operation | LOCK_NB) == -1)
379 return (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
380 : got_error_from_errno2("flock",
381 got_worktree_get_root_path(worktree)));
385 static const struct got_error *
386 add_dir_on_disk(struct got_worktree *worktree, const char *path)
388 const struct got_error *err = NULL;
391 if (asprintf(&abspath, "%s/%s", worktree->root_path, path) == -1)
392 return got_error_from_errno("asprintf");
394 err = got_path_mkdir(abspath);
395 if (err && err->code == GOT_ERR_ERRNO && errno == EEXIST) {
398 if (lstat(abspath, &sb) == -1) {
399 err = got_error_from_errno2("lstat", abspath);
400 } else if (!S_ISDIR(sb.st_mode)) {
401 /* TODO directory is obstructed; do something */
402 err = got_error_path(abspath, GOT_ERR_FILE_OBSTRUCTED);
409 static const struct got_error *
410 check_file_contents_equal(int *same, FILE *f1, FILE *f2)
412 const struct got_error *err = NULL;
415 size_t flen1 = 0, flen2 = 0;
420 flen1 = fread(fbuf1, 1, sizeof(fbuf1), f1);
421 if (flen1 == 0 && ferror(f1)) {
422 err = got_error_from_errno("fread");
425 flen2 = fread(fbuf2, 1, sizeof(fbuf2), f2);
426 if (flen2 == 0 && ferror(f2)) {
427 err = got_error_from_errno("fread");
434 } else if (flen2 == 0) {
438 } else if (flen1 == flen2) {
439 if (memcmp(fbuf1, fbuf2, flen2) != 0) {
452 static const struct got_error *
453 check_files_equal(int *same, FILE *f1, FILE *f2)
460 if (fstat(fileno(f1), &sb) != 0)
461 return got_error_from_errno("fstat");
464 if (fstat(fileno(f2), &sb) != 0)
465 return got_error_from_errno("fstat");
468 if (size1 != size2) {
473 if (fseek(f1, 0L, SEEK_SET) == -1)
474 return got_ferror(f1, GOT_ERR_IO);
475 if (fseek(f2, 0L, SEEK_SET) == -1)
476 return got_ferror(f2, GOT_ERR_IO);
478 return check_file_contents_equal(same, f1, f2);
481 static const struct got_error *
482 copy_file_to_fd(off_t *outsize, FILE *f, int outfd)
490 if (fseek(f, 0L, SEEK_SET) == -1)
491 return got_ferror(f, GOT_ERR_IO);
494 flen = fread(fbuf, 1, sizeof(fbuf), f);
497 return got_error_from_errno("fread");
501 outlen = write(outfd, fbuf, flen);
503 return got_error_from_errno("write");
505 return got_error(GOT_ERR_IO);
512 static const struct got_error *
513 merge_binary_file(int *overlapcnt, int merged_fd,
514 FILE *f_deriv, FILE *f_orig, FILE *f_deriv2,
515 const char *label_deriv, const char *label_orig, const char *label_deriv2,
516 const char *ondisk_path)
518 const struct got_error *err = NULL;
519 int same_content, changed_deriv, changed_deriv2;
520 int fd_orig = -1, fd_deriv = -1, fd_deriv2 = -1;
521 off_t size_orig = 0, size_deriv = 0, size_deriv2 = 0;
522 char *path_orig = NULL, *path_deriv = NULL, *path_deriv2 = NULL;
523 char *base_path_orig = NULL, *base_path_deriv = NULL;
524 char *base_path_deriv2 = NULL;
528 err = check_files_equal(&same_content, f_deriv, f_deriv2);
533 return copy_file_to_fd(&size_deriv, f_deriv, merged_fd);
535 err = check_files_equal(&same_content, f_deriv, f_orig);
538 changed_deriv = !same_content;
539 err = check_files_equal(&same_content, f_deriv2, f_orig);
542 changed_deriv2 = !same_content;
544 if (changed_deriv && changed_deriv2) {
546 if (asprintf(&base_path_orig, "%s-orig", ondisk_path) == -1) {
547 err = got_error_from_errno("asprintf");
550 if (asprintf(&base_path_deriv, "%s-1", ondisk_path) == -1) {
551 err = got_error_from_errno("asprintf");
554 if (asprintf(&base_path_deriv2, "%s-2", ondisk_path) == -1) {
555 err = got_error_from_errno("asprintf");
558 err = got_opentemp_named_fd(&path_orig, &fd_orig,
562 err = got_opentemp_named_fd(&path_deriv, &fd_deriv,
563 base_path_deriv, "");
566 err = got_opentemp_named_fd(&path_deriv2, &fd_deriv2,
567 base_path_deriv2, "");
570 err = copy_file_to_fd(&size_orig, f_orig, fd_orig);
573 err = copy_file_to_fd(&size_deriv, f_deriv, fd_deriv);
576 err = copy_file_to_fd(&size_deriv2, f_deriv2, fd_deriv2);
579 if (dprintf(merged_fd, "Binary files differ and cannot be "
580 "merged automatically:\n") < 0) {
581 err = got_error_from_errno("dprintf");
584 if (dprintf(merged_fd, "%s%s%s\nfile %s\n",
585 GOT_DIFF_CONFLICT_MARKER_BEGIN,
586 label_deriv ? " " : "",
587 label_deriv ? label_deriv : "",
589 err = got_error_from_errno("dprintf");
593 if (dprintf(merged_fd, "%s%s%s\nfile %s\n",
594 GOT_DIFF_CONFLICT_MARKER_ORIG,
595 label_orig ? " " : "",
596 label_orig ? label_orig : "",
598 err = got_error_from_errno("dprintf");
602 if (dprintf(merged_fd, "%s\nfile %s\n%s%s%s\n",
603 GOT_DIFF_CONFLICT_MARKER_SEP,
605 GOT_DIFF_CONFLICT_MARKER_END,
606 label_deriv2 ? " " : "",
607 label_deriv2 ? label_deriv2 : "") < 0) {
608 err = got_error_from_errno("dprintf");
611 } else if (changed_deriv)
612 err = copy_file_to_fd(&size_deriv, f_deriv, merged_fd);
613 else if (changed_deriv2)
614 err = copy_file_to_fd(&size_deriv2, f_deriv2, merged_fd);
616 if (size_orig == 0 && path_orig && unlink(path_orig) == -1 &&
618 err = got_error_from_errno2("unlink", path_orig);
619 if (fd_orig != -1 && close(fd_orig) == -1 && err == NULL)
620 err = got_error_from_errno2("close", path_orig);
621 if (fd_deriv != -1 && close(fd_deriv) == -1 && err == NULL)
622 err = got_error_from_errno2("close", path_deriv);
623 if (fd_deriv2 != -1 && close(fd_deriv2) == -1 && err == NULL)
624 err = got_error_from_errno2("close", path_deriv2);
628 free(base_path_orig);
629 free(base_path_deriv);
630 free(base_path_deriv2);
635 * Perform a 3-way merge where the file f_orig acts as the common
636 * ancestor, the file f_deriv acts as the first derived version,
637 * and the file f_deriv2 acts as the second derived version.
638 * The merge result will be written to a new file at ondisk_path; any
639 * existing file at this path will be replaced.
641 static const struct got_error *
642 merge_file(int *local_changes_subsumed, struct got_worktree *worktree,
643 FILE *f_orig, FILE *f_deriv, FILE *f_deriv2, const char *ondisk_path,
644 const char *path, uint16_t st_mode,
645 const char *label_orig, const char *label_deriv, const char *label_deriv2,
646 enum got_diff_algorithm diff_algo, struct got_repository *repo,
647 got_worktree_checkout_cb progress_cb, void *progress_arg)
649 const struct got_error *err = NULL;
651 FILE *f_merged = NULL;
652 char *merged_path = NULL, *base_path = NULL;
656 *local_changes_subsumed = 0;
658 err = got_path_dirname(&parent, ondisk_path);
662 if (asprintf(&base_path, "%s/got-merged", parent) == -1) {
663 err = got_error_from_errno("asprintf");
667 err = got_opentemp_named_fd(&merged_path, &merged_fd, base_path, "");
671 err = got_merge_diff3(&overlapcnt, merged_fd, f_deriv, f_orig,
672 f_deriv2, label_deriv, label_orig, label_deriv2, diff_algo);
674 if (err->code != GOT_ERR_FILE_BINARY)
676 err = merge_binary_file(&overlapcnt, merged_fd, f_deriv,
677 f_orig, f_deriv2, label_deriv, label_orig, label_deriv2,
683 err = (*progress_cb)(progress_arg,
684 overlapcnt > 0 ? GOT_STATUS_CONFLICT : GOT_STATUS_MERGE, path);
688 if (fsync(merged_fd) != 0) {
689 err = got_error_from_errno("fsync");
693 f_merged = fdopen(merged_fd, "r");
694 if (f_merged == NULL) {
695 err = got_error_from_errno("fdopen");
700 /* Check if a clean merge has subsumed all local changes. */
701 if (overlapcnt == 0) {
702 err = check_files_equal(local_changes_subsumed, f_deriv,
708 if (fchmod(fileno(f_merged), apply_umask(st_mode)) != 0) {
709 err = got_error_from_errno2("fchmod", merged_path);
713 if (rename(merged_path, ondisk_path) != 0) {
714 err = got_error_from_errno3("rename", merged_path,
723 if (merged_fd != -1 && close(merged_fd) == -1 && err == NULL)
724 err = got_error_from_errno("close");
725 if (f_merged && fclose(f_merged) == EOF && err == NULL)
726 err = got_error_from_errno("fclose");
733 static const struct got_error *
734 update_symlink(const char *ondisk_path, const char *target_path,
737 /* This is not atomic but matches what 'ln -sf' does. */
738 if (unlink(ondisk_path) == -1)
739 return got_error_from_errno2("unlink", ondisk_path);
740 if (symlink(target_path, ondisk_path) == -1)
741 return got_error_from_errno3("symlink", target_path,
747 * Overwrite a symlink (or a regular file in case there was a "bad" symlink)
748 * in the work tree with a file that contains conflict markers and the
749 * conflicting target paths of the original version, a "derived version"
750 * of a symlink from an incoming change, and a local version of the symlink.
752 * The original versions's target path can be NULL if it is not available,
753 * such as if both derived versions added a new symlink at the same path.
755 * The incoming derived symlink target is NULL in case the incoming change
756 * has deleted this symlink.
758 static const struct got_error *
759 install_symlink_conflict(const char *deriv_target,
760 struct got_object_id *deriv_base_commit_id, const char *orig_target,
761 const char *label_orig, const char *local_target, const char *ondisk_path)
763 const struct got_error *err;
764 char *id_str = NULL, *label_deriv = NULL, *path = NULL;
767 err = got_object_id_str(&id_str, deriv_base_commit_id);
769 return got_error_from_errno("asprintf");
771 if (asprintf(&label_deriv, "%s: commit %s",
772 GOT_MERGE_LABEL_MERGED, id_str) == -1) {
773 err = got_error_from_errno("asprintf");
777 err = got_opentemp_named(&path, &f, "got-symlink-conflict", "");
781 if (fchmod(fileno(f), apply_umask(GOT_DEFAULT_FILE_MODE)) == -1) {
782 err = got_error_from_errno2("fchmod", path);
786 if (fprintf(f, "%s %s\n%s\n%s%s%s%s%s\n%s\n%s\n",
787 GOT_DIFF_CONFLICT_MARKER_BEGIN, label_deriv,
788 deriv_target ? deriv_target : "(symlink was deleted)",
789 orig_target ? label_orig : "",
790 orig_target ? "\n" : "",
791 orig_target ? orig_target : "",
792 orig_target ? "\n" : "",
793 GOT_DIFF_CONFLICT_MARKER_SEP,
794 local_target, GOT_DIFF_CONFLICT_MARKER_END) < 0) {
795 err = got_error_from_errno2("fprintf", path);
799 if (unlink(ondisk_path) == -1) {
800 err = got_error_from_errno2("unlink", ondisk_path);
803 if (rename(path, ondisk_path) == -1) {
804 err = got_error_from_errno3("rename", path, ondisk_path);
808 if (f != NULL && fclose(f) == EOF && err == NULL)
809 err = got_error_from_errno2("fclose", path);
816 /* forward declaration */
817 static const struct got_error *
818 merge_blob(int *, struct got_worktree *, struct got_blob_object *,
819 const char *, const char *, uint16_t, const char *,
820 struct got_blob_object *, struct got_object_id *,
821 struct got_repository *, got_worktree_checkout_cb, void *);
824 * Merge a symlink into the work tree, where blob_orig acts as the common
825 * ancestor, deriv_target is the link target of the first derived version,
826 * and the symlink on disk acts as the second derived version.
827 * Assume that contents of both blobs represent symlinks.
829 static const struct got_error *
830 merge_symlink(struct got_worktree *worktree,
831 struct got_blob_object *blob_orig, const char *ondisk_path,
832 const char *path, const char *label_orig, const char *deriv_target,
833 struct got_object_id *deriv_base_commit_id, struct got_repository *repo,
834 got_worktree_checkout_cb progress_cb, void *progress_arg)
836 const struct got_error *err = NULL;
837 char *ancestor_target = NULL;
839 ssize_t ondisk_len, deriv_len;
840 char ondisk_target[PATH_MAX];
841 int have_local_change = 0;
842 int have_incoming_change = 0;
844 if (lstat(ondisk_path, &sb) == -1)
845 return got_error_from_errno2("lstat", ondisk_path);
847 ondisk_len = readlink(ondisk_path, ondisk_target,
848 sizeof(ondisk_target));
849 if (ondisk_len == -1) {
850 err = got_error_from_errno2("readlink",
854 ondisk_target[ondisk_len] = '\0';
857 err = got_object_blob_read_to_str(&ancestor_target, blob_orig);
862 if (ancestor_target == NULL ||
863 (ondisk_len != strlen(ancestor_target) ||
864 memcmp(ondisk_target, ancestor_target, ondisk_len) != 0))
865 have_local_change = 1;
867 deriv_len = strlen(deriv_target);
868 if (ancestor_target == NULL ||
869 (deriv_len != strlen(ancestor_target) ||
870 memcmp(deriv_target, ancestor_target, deriv_len) != 0))
871 have_incoming_change = 1;
873 if (!have_local_change && !have_incoming_change) {
874 if (ancestor_target) {
875 /* Both sides made the same change. */
876 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE,
878 } else if (deriv_len == ondisk_len &&
879 memcmp(ondisk_target, deriv_target, deriv_len) == 0) {
880 /* Both sides added the same symlink. */
881 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE,
884 /* Both sides added symlinks which don't match. */
885 err = install_symlink_conflict(deriv_target,
886 deriv_base_commit_id, ancestor_target,
887 label_orig, ondisk_target, ondisk_path);
890 err = (*progress_cb)(progress_arg, GOT_STATUS_CONFLICT,
893 } else if (!have_local_change && have_incoming_change) {
894 /* Apply the incoming change. */
895 err = update_symlink(ondisk_path, deriv_target,
896 strlen(deriv_target));
899 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE, path);
900 } else if (have_local_change && have_incoming_change) {
901 if (deriv_len == ondisk_len &&
902 memcmp(deriv_target, ondisk_target, deriv_len) == 0) {
903 /* Both sides made the same change. */
904 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE,
907 err = install_symlink_conflict(deriv_target,
908 deriv_base_commit_id, ancestor_target, label_orig,
909 ondisk_target, ondisk_path);
912 err = (*progress_cb)(progress_arg, GOT_STATUS_CONFLICT,
918 free(ancestor_target);
922 static const struct got_error *
923 dump_symlink_target_path_to_file(FILE **outfile, const char *ondisk_path)
925 const struct got_error *err = NULL;
926 char target_path[PATH_MAX];
935 return got_error_from_errno("got_opentemp");
936 target_len = readlink(ondisk_path, target_path, sizeof(target_path));
937 if (target_len == -1) {
938 err = got_error_from_errno2("readlink", ondisk_path);
941 n = fwrite(target_path, 1, target_len, f);
942 if (n != target_len) {
943 err = got_ferror(f, GOT_ERR_IO);
946 if (fflush(f) == EOF) {
947 err = got_error_from_errno("fflush");
950 if (fseek(f, 0L, SEEK_SET) == -1) {
951 err = got_ferror(f, GOT_ERR_IO);
963 * Perform a 3-way merge where blob_orig acts as the common ancestor,
964 * blob_deriv acts as the first derived version, and the file on disk
965 * acts as the second derived version.
967 static const struct got_error *
968 merge_blob(int *local_changes_subsumed, struct got_worktree *worktree,
969 struct got_blob_object *blob_orig, const char *ondisk_path,
970 const char *path, uint16_t st_mode, const char *label_orig,
971 struct got_blob_object *blob_deriv,
972 struct got_object_id *deriv_base_commit_id, struct got_repository *repo,
973 got_worktree_checkout_cb progress_cb, void *progress_arg)
975 const struct got_error *err = NULL;
976 FILE *f_orig = NULL, *f_deriv = NULL, *f_deriv2 = NULL;
977 char *blob_orig_path = NULL;
978 char *blob_deriv_path = NULL, *base_path = NULL, *id_str = NULL;
979 char *label_deriv = NULL, *parent = NULL;
981 *local_changes_subsumed = 0;
983 err = got_path_dirname(&parent, ondisk_path);
988 if (asprintf(&base_path, "%s/got-merge-blob-orig",
990 err = got_error_from_errno("asprintf");
995 err = got_opentemp_named(&blob_orig_path, &f_orig,
999 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f_orig,
1006 * No common ancestor exists. This is an "add vs add" conflict
1007 * and we simply use an empty ancestor file to make both files
1008 * appear in the merged result in their entirety.
1010 f_orig = got_opentemp();
1011 if (f_orig == NULL) {
1012 err = got_error_from_errno("got_opentemp");
1017 if (asprintf(&base_path, "%s/got-merge-blob-deriv", parent) == -1) {
1018 err = got_error_from_errno("asprintf");
1023 err = got_opentemp_named(&blob_deriv_path, &f_deriv, base_path, "");
1026 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f_deriv,
1031 err = got_object_id_str(&id_str, deriv_base_commit_id);
1034 if (asprintf(&label_deriv, "%s: commit %s",
1035 GOT_MERGE_LABEL_MERGED, id_str) == -1) {
1036 err = got_error_from_errno("asprintf");
1041 * In order the run a 3-way merge with a symlink we copy the symlink's
1042 * target path into a temporary file and use that file with diff3.
1044 if (S_ISLNK(st_mode)) {
1045 err = dump_symlink_target_path_to_file(&f_deriv2, ondisk_path);
1050 fd = open(ondisk_path, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
1052 err = got_error_from_errno2("open", ondisk_path);
1055 f_deriv2 = fdopen(fd, "r");
1056 if (f_deriv2 == NULL) {
1057 err = got_error_from_errno2("fdopen", ondisk_path);
1063 err = merge_file(local_changes_subsumed, worktree, f_orig, f_deriv,
1064 f_deriv2, ondisk_path, path, st_mode, label_orig, label_deriv,
1065 NULL, GOT_DIFF_ALGORITHM_MYERS, repo, progress_cb, progress_arg);
1067 if (f_orig && fclose(f_orig) == EOF && err == NULL)
1068 err = got_error_from_errno("fclose");
1069 if (f_deriv && fclose(f_deriv) == EOF && err == NULL)
1070 err = got_error_from_errno("fclose");
1071 if (f_deriv2 && fclose(f_deriv2) == EOF && err == NULL)
1072 err = got_error_from_errno("fclose");
1074 if (blob_orig_path) {
1075 unlink(blob_orig_path);
1076 free(blob_orig_path);
1078 if (blob_deriv_path) {
1079 unlink(blob_deriv_path);
1080 free(blob_deriv_path);
1088 static const struct got_error *
1089 create_fileindex_entry(struct got_fileindex_entry **new_iep,
1090 struct got_fileindex *fileindex, struct got_object_id *base_commit_id,
1091 int wt_fd, const char *path, struct got_object_id *blob_id)
1093 const struct got_error *err = NULL;
1094 struct got_fileindex_entry *new_ie;
1098 err = got_fileindex_entry_alloc(&new_ie, path);
1102 err = got_fileindex_entry_update(new_ie, wt_fd, path,
1103 blob_id->sha1, base_commit_id->sha1, 1);
1107 err = got_fileindex_entry_add(fileindex, new_ie);
1110 got_fileindex_entry_free(new_ie);
1117 get_ondisk_perms(int executable, mode_t st_mode)
1119 mode_t xbits = S_IXUSR;
1122 /* Map read bits to execute bits. */
1123 if (st_mode & S_IRGRP)
1125 if (st_mode & S_IROTH)
1127 return st_mode | xbits;
1134 apply_umask(mode_t mode)
1143 /* forward declaration */
1144 static const struct got_error *
1145 install_blob(struct got_worktree *worktree, const char *ondisk_path,
1146 const char *path, mode_t te_mode, mode_t st_mode,
1147 struct got_blob_object *blob, int restoring_missing_file,
1148 int reverting_versioned_file, int installing_bad_symlink,
1149 int path_is_unversioned, struct got_repository *repo,
1150 got_worktree_checkout_cb progress_cb, void *progress_arg);
1153 * This function assumes that the provided symlink target points at a
1154 * safe location in the work tree!
1156 static const struct got_error *
1157 replace_existing_symlink(int *did_something, const char *ondisk_path,
1158 const char *target_path, size_t target_len)
1160 const struct got_error *err = NULL;
1162 char etarget[PATH_MAX];
1168 * "Bad" symlinks (those pointing outside the work tree or into the
1169 * .got directory) are installed in the work tree as a regular file
1170 * which contains the bad symlink target path.
1171 * The new symlink target has already been checked for safety by our
1172 * caller. If we can successfully open a regular file then we simply
1173 * replace this file with a symlink below.
1175 fd = open(ondisk_path, O_RDWR | O_EXCL | O_NOFOLLOW | O_CLOEXEC);
1177 if (!got_err_open_nofollow_on_symlink())
1178 return got_error_from_errno2("open", ondisk_path);
1180 /* We are updating an existing on-disk symlink. */
1181 elen = readlink(ondisk_path, etarget, sizeof(etarget));
1183 return got_error_from_errno2("readlink", ondisk_path);
1185 if (elen == target_len &&
1186 memcmp(etarget, target_path, target_len) == 0)
1187 return NULL; /* nothing to do */
1191 err = update_symlink(ondisk_path, target_path, target_len);
1192 if (fd != -1 && close(fd) == -1 && err == NULL)
1193 err = got_error_from_errno2("close", ondisk_path);
1197 static const struct got_error *
1198 is_bad_symlink_target(int *is_bad_symlink, const char *target_path,
1199 size_t target_len, const char *ondisk_path, const char *wtroot_path)
1201 const struct got_error *err = NULL;
1202 char canonpath[PATH_MAX];
1203 char *path_got = NULL;
1205 *is_bad_symlink = 0;
1207 if (target_len >= sizeof(canonpath)) {
1208 *is_bad_symlink = 1;
1213 * We do not use realpath(3) to resolve the symlink's target
1214 * path because we don't want to resolve symlinks recursively.
1215 * Instead we make the path absolute and then canonicalize it.
1216 * Relative symlink target lookup should begin at the directory
1217 * in which the blob object is being installed.
1219 if (!got_path_is_absolute(target_path)) {
1220 char *abspath, *parent;
1221 err = got_path_dirname(&parent, ondisk_path);
1224 if (asprintf(&abspath, "%s/%s", parent, target_path) == -1) {
1226 return got_error_from_errno("asprintf");
1229 if (strlen(abspath) >= sizeof(canonpath)) {
1230 err = got_error_path(abspath, GOT_ERR_BAD_PATH);
1234 err = got_canonpath(abspath, canonpath, sizeof(canonpath));
1239 err = got_canonpath(target_path, canonpath, sizeof(canonpath));
1244 /* Only allow symlinks pointing at paths within the work tree. */
1245 if (!got_path_is_child(canonpath, wtroot_path, strlen(wtroot_path))) {
1246 *is_bad_symlink = 1;
1250 /* Do not allow symlinks pointing into the .got directory. */
1251 if (asprintf(&path_got, "%s/%s", wtroot_path,
1252 GOT_WORKTREE_GOT_DIR) == -1)
1253 return got_error_from_errno("asprintf");
1254 if (got_path_is_child(canonpath, path_got, strlen(path_got)))
1255 *is_bad_symlink = 1;
1261 static const struct got_error *
1262 install_symlink(int *is_bad_symlink, struct got_worktree *worktree,
1263 const char *ondisk_path, const char *path, struct got_blob_object *blob,
1264 int restoring_missing_file, int reverting_versioned_file,
1265 int path_is_unversioned, int allow_bad_symlinks,
1266 struct got_repository *repo,
1267 got_worktree_checkout_cb progress_cb, void *progress_arg)
1269 const struct got_error *err = NULL;
1270 char target_path[PATH_MAX];
1271 size_t len, target_len = 0;
1272 const uint8_t *buf = got_object_blob_get_read_buf(blob);
1273 size_t hdrlen = got_object_blob_get_hdrlen(blob);
1275 *is_bad_symlink = 0;
1278 * Blob object content specifies the target path of the link.
1279 * If a symbolic link cannot be installed we instead create
1280 * a regular file which contains the link target path stored
1281 * in the blob object.
1284 err = got_object_blob_read_block(&len, blob);
1288 if (len + target_len >= sizeof(target_path)) {
1289 /* Path too long; install as a regular file. */
1290 *is_bad_symlink = 1;
1291 got_object_blob_rewind(blob);
1292 return install_blob(worktree, ondisk_path, path,
1293 GOT_DEFAULT_FILE_MODE, GOT_DEFAULT_FILE_MODE, blob,
1294 restoring_missing_file, reverting_versioned_file,
1295 1, path_is_unversioned, repo, progress_cb,
1299 /* Skip blob object header first time around. */
1300 memcpy(target_path + target_len, buf + hdrlen,
1302 target_len += len - hdrlen;
1306 target_path[target_len] = '\0';
1308 err = is_bad_symlink_target(is_bad_symlink, target_path, target_len,
1309 ondisk_path, worktree->root_path);
1313 if (*is_bad_symlink && !allow_bad_symlinks) {
1314 /* install as a regular file */
1315 got_object_blob_rewind(blob);
1316 err = install_blob(worktree, ondisk_path, path,
1317 GOT_DEFAULT_FILE_MODE, GOT_DEFAULT_FILE_MODE, blob,
1318 restoring_missing_file, reverting_versioned_file, 1,
1319 path_is_unversioned, repo, progress_cb, progress_arg);
1323 if (symlink(target_path, ondisk_path) == -1) {
1324 if (errno == EEXIST) {
1325 int symlink_replaced;
1326 if (path_is_unversioned) {
1327 err = (*progress_cb)(progress_arg,
1328 GOT_STATUS_UNVERSIONED, path);
1331 err = replace_existing_symlink(&symlink_replaced,
1332 ondisk_path, target_path, target_len);
1336 if (symlink_replaced) {
1337 err = (*progress_cb)(progress_arg,
1338 reverting_versioned_file ?
1340 GOT_STATUS_UPDATE, path);
1342 err = (*progress_cb)(progress_arg,
1343 GOT_STATUS_EXISTS, path);
1346 return err; /* Nothing else to do. */
1349 if (errno == ENOENT) {
1351 err = got_path_dirname(&parent, ondisk_path);
1354 err = add_dir_on_disk(worktree, parent);
1359 * Retry, and fall through to error handling
1360 * below if this second attempt fails.
1362 if (symlink(target_path, ondisk_path) != -1) {
1363 err = NULL; /* success */
1368 /* Handle errors from first or second creation attempt. */
1369 if (errno == ENAMETOOLONG) {
1370 /* bad target path; install as a regular file */
1371 *is_bad_symlink = 1;
1372 got_object_blob_rewind(blob);
1373 err = install_blob(worktree, ondisk_path, path,
1374 GOT_DEFAULT_FILE_MODE, GOT_DEFAULT_FILE_MODE, blob,
1375 restoring_missing_file, reverting_versioned_file, 1,
1376 path_is_unversioned, repo,
1377 progress_cb, progress_arg);
1378 } else if (errno == ENOTDIR) {
1379 err = got_error_path(ondisk_path,
1380 GOT_ERR_FILE_OBSTRUCTED);
1382 err = got_error_from_errno3("symlink",
1383 target_path, ondisk_path);
1385 } else if (progress_cb)
1386 err = (*progress_cb)(progress_arg, reverting_versioned_file ?
1387 GOT_STATUS_REVERT : GOT_STATUS_ADD, path);
1391 static const struct got_error *
1392 install_blob(struct got_worktree *worktree, const char *ondisk_path,
1393 const char *path, mode_t te_mode, mode_t st_mode,
1394 struct got_blob_object *blob, int restoring_missing_file,
1395 int reverting_versioned_file, int installing_bad_symlink,
1396 int path_is_unversioned, struct got_repository *repo,
1397 got_worktree_checkout_cb progress_cb, void *progress_arg)
1399 const struct got_error *err = NULL;
1403 char *tmppath = NULL;
1406 mode = get_ondisk_perms(te_mode & S_IXUSR, GOT_DEFAULT_FILE_MODE);
1407 fd = open(ondisk_path, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW |
1410 if (errno == ENOENT) {
1412 err = got_path_dirname(&parent, path);
1415 err = add_dir_on_disk(worktree, parent);
1419 fd = open(ondisk_path,
1420 O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW | O_CLOEXEC,
1423 return got_error_from_errno2("open",
1425 } else if (errno == EEXIST) {
1426 if (path_is_unversioned) {
1427 err = (*progress_cb)(progress_arg,
1428 GOT_STATUS_UNVERSIONED, path);
1431 if (!(S_ISLNK(st_mode) && S_ISREG(te_mode)) &&
1432 !S_ISREG(st_mode) && !installing_bad_symlink) {
1433 /* TODO file is obstructed; do something */
1434 err = got_error_path(ondisk_path,
1435 GOT_ERR_FILE_OBSTRUCTED);
1438 err = got_opentemp_named_fd(&tmppath, &fd,
1444 if (fchmod(fd, apply_umask(mode)) == -1) {
1445 err = got_error_from_errno2("fchmod",
1451 return got_error_from_errno2("open", ondisk_path);
1455 if (restoring_missing_file)
1456 err = (*progress_cb)(progress_arg, GOT_STATUS_MISSING,
1458 else if (reverting_versioned_file)
1459 err = (*progress_cb)(progress_arg, GOT_STATUS_REVERT,
1462 err = (*progress_cb)(progress_arg,
1463 update ? GOT_STATUS_UPDATE : GOT_STATUS_ADD, path);
1468 hdrlen = got_object_blob_get_hdrlen(blob);
1470 const uint8_t *buf = got_object_blob_get_read_buf(blob);
1471 err = got_object_blob_read_block(&len, blob);
1475 /* Skip blob object header first time around. */
1476 ssize_t outlen = write(fd, buf + hdrlen, len - hdrlen);
1478 err = got_error_from_errno("write");
1480 } else if (outlen != len - hdrlen) {
1481 err = got_error(GOT_ERR_IO);
1488 if (fsync(fd) != 0) {
1489 err = got_error_from_errno("fsync");
1494 if (S_ISLNK(st_mode) && unlink(ondisk_path) == -1) {
1495 err = got_error_from_errno2("unlink", ondisk_path);
1498 if (rename(tmppath, ondisk_path) != 0) {
1499 err = got_error_from_errno3("rename", tmppath,
1508 if (fd != -1 && close(fd) == -1 && err == NULL)
1509 err = got_error_from_errno("close");
1510 if (tmppath != NULL && unlink(tmppath) == -1 && err == NULL)
1511 err = got_error_from_errno2("unlink", tmppath);
1516 /* Upgrade STATUS_MODIFY to STATUS_CONFLICT if a conflict marker is found. */
1517 static const struct got_error *
1518 get_modified_file_content_status(unsigned char *status, FILE *f)
1520 const struct got_error *err = NULL;
1521 const char *markers[3] = {
1522 GOT_DIFF_CONFLICT_MARKER_BEGIN,
1523 GOT_DIFF_CONFLICT_MARKER_SEP,
1524 GOT_DIFF_CONFLICT_MARKER_END
1528 size_t linesize = 0;
1531 while (*status == GOT_STATUS_MODIFY) {
1532 linelen = getline(&line, &linesize, f);
1533 if (linelen == -1) {
1536 err = got_ferror(f, GOT_ERR_IO);
1540 if (strncmp(line, markers[i], strlen(markers[i])) == 0) {
1541 if (strcmp(markers[i], GOT_DIFF_CONFLICT_MARKER_END)
1543 *status = GOT_STATUS_CONFLICT;
1554 xbit_differs(struct got_fileindex_entry *ie, uint16_t st_mode)
1556 mode_t ie_mode = got_fileindex_perms_to_st(ie);
1557 return ((ie_mode & S_IXUSR) != (st_mode & S_IXUSR));
1561 stat_info_differs(struct got_fileindex_entry *ie, struct stat *sb)
1563 return !(ie->ctime_sec == sb->st_ctim.tv_sec &&
1564 ie->ctime_nsec == sb->st_ctim.tv_nsec &&
1565 ie->mtime_sec == sb->st_mtim.tv_sec &&
1566 ie->mtime_nsec == sb->st_mtim.tv_nsec &&
1567 ie->size == (sb->st_size & 0xffffffff) &&
1568 !xbit_differs(ie, sb->st_mode));
1571 static unsigned char
1572 get_staged_status(struct got_fileindex_entry *ie)
1574 switch (got_fileindex_entry_stage_get(ie)) {
1575 case GOT_FILEIDX_STAGE_ADD:
1576 return GOT_STATUS_ADD;
1577 case GOT_FILEIDX_STAGE_DELETE:
1578 return GOT_STATUS_DELETE;
1579 case GOT_FILEIDX_STAGE_MODIFY:
1580 return GOT_STATUS_MODIFY;
1582 return GOT_STATUS_NO_CHANGE;
1586 static const struct got_error *
1587 get_symlink_modification_status(unsigned char *status,
1588 struct got_fileindex_entry *ie, const char *abspath,
1589 int dirfd, const char *de_name, struct got_blob_object *blob)
1591 const struct got_error *err = NULL;
1592 char target_path[PATH_MAX];
1593 char etarget[PATH_MAX];
1595 size_t len, target_len = 0;
1596 const uint8_t *buf = got_object_blob_get_read_buf(blob);
1597 size_t hdrlen = got_object_blob_get_hdrlen(blob);
1599 *status = GOT_STATUS_NO_CHANGE;
1601 /* Blob object content specifies the target path of the link. */
1603 err = got_object_blob_read_block(&len, blob);
1606 if (len + target_len >= sizeof(target_path)) {
1608 * Should not happen. The blob contents were OK
1609 * when this symlink was installed.
1611 return got_error(GOT_ERR_NO_SPACE);
1614 /* Skip blob object header first time around. */
1615 memcpy(target_path + target_len, buf + hdrlen,
1617 target_len += len - hdrlen;
1621 target_path[target_len] = '\0';
1624 elen = readlinkat(dirfd, de_name, etarget, sizeof(etarget));
1626 return got_error_from_errno2("readlinkat", abspath);
1628 elen = readlink(abspath, etarget, sizeof(etarget));
1630 return got_error_from_errno2("readlink", abspath);
1633 if (elen != target_len || memcmp(etarget, target_path, target_len) != 0)
1634 *status = GOT_STATUS_MODIFY;
1639 static const struct got_error *
1640 get_file_status(unsigned char *status, struct stat *sb,
1641 struct got_fileindex_entry *ie, const char *abspath,
1642 int dirfd, const char *de_name, struct got_repository *repo)
1644 const struct got_error *err = NULL;
1645 struct got_object_id id;
1647 int fd = -1, fd1 = -1;
1650 struct got_blob_object *blob = NULL;
1652 unsigned char staged_status = get_staged_status(ie);
1654 *status = GOT_STATUS_NO_CHANGE;
1655 memset(sb, 0, sizeof(*sb));
1658 * Whenever the caller provides a directory descriptor and a
1659 * directory entry name for the file, use them! This prevents
1660 * race conditions if filesystem paths change beneath our feet.
1663 if (fstatat(dirfd, de_name, sb, AT_SYMLINK_NOFOLLOW) == -1) {
1664 if (errno == ENOENT) {
1665 if (got_fileindex_entry_has_file_on_disk(ie))
1666 *status = GOT_STATUS_MISSING;
1668 *status = GOT_STATUS_DELETE;
1671 err = got_error_from_errno2("fstatat", abspath);
1675 fd = open(abspath, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
1676 if (fd == -1 && errno != ENOENT &&
1677 !got_err_open_nofollow_on_symlink())
1678 return got_error_from_errno2("open", abspath);
1679 else if (fd == -1 && got_err_open_nofollow_on_symlink()) {
1680 if (lstat(abspath, sb) == -1)
1681 return got_error_from_errno2("lstat", abspath);
1682 } else if (fd == -1 || fstat(fd, sb) == -1) {
1683 if (errno == ENOENT) {
1684 if (got_fileindex_entry_has_file_on_disk(ie))
1685 *status = GOT_STATUS_MISSING;
1687 *status = GOT_STATUS_DELETE;
1690 err = got_error_from_errno2("fstat", abspath);
1695 if (!S_ISREG(sb->st_mode) && !S_ISLNK(sb->st_mode)) {
1696 *status = GOT_STATUS_OBSTRUCTED;
1700 if (!got_fileindex_entry_has_file_on_disk(ie)) {
1701 *status = GOT_STATUS_DELETE;
1703 } else if (!got_fileindex_entry_has_blob(ie) &&
1704 staged_status != GOT_STATUS_ADD) {
1705 *status = GOT_STATUS_ADD;
1709 if (!stat_info_differs(ie, sb))
1712 if (S_ISLNK(sb->st_mode) &&
1713 got_fileindex_entry_filetype_get(ie) != GOT_FILEIDX_MODE_SYMLINK) {
1714 *status = GOT_STATUS_MODIFY;
1718 if (staged_status == GOT_STATUS_MODIFY ||
1719 staged_status == GOT_STATUS_ADD)
1720 memcpy(id.sha1, ie->staged_blob_sha1, sizeof(id.sha1));
1722 memcpy(id.sha1, ie->blob_sha1, sizeof(id.sha1));
1724 fd1 = got_opentempfd();
1726 err = got_error_from_errno("got_opentempfd");
1729 err = got_object_open_as_blob(&blob, repo, &id, sizeof(fbuf), fd1);
1733 if (S_ISLNK(sb->st_mode)) {
1734 err = get_symlink_modification_status(status, ie,
1735 abspath, dirfd, de_name, blob);
1740 fd = openat(dirfd, de_name, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
1742 err = got_error_from_errno2("openat", abspath);
1747 f = fdopen(fd, "r");
1749 err = got_error_from_errno2("fdopen", abspath);
1753 hdrlen = got_object_blob_get_hdrlen(blob);
1755 const uint8_t *bbuf = got_object_blob_get_read_buf(blob);
1756 err = got_object_blob_read_block(&blen, blob);
1759 /* Skip length of blob object header first time around. */
1760 flen = fread(fbuf, 1, sizeof(fbuf) - hdrlen, f);
1761 if (flen == 0 && ferror(f)) {
1762 err = got_error_from_errno("fread");
1765 if (blen - hdrlen == 0) {
1767 *status = GOT_STATUS_MODIFY;
1769 } else if (flen == 0) {
1770 if (blen - hdrlen != 0)
1771 *status = GOT_STATUS_MODIFY;
1773 } else if (blen - hdrlen == flen) {
1774 /* Skip blob object header first time around. */
1775 if (memcmp(bbuf + hdrlen, fbuf, flen) != 0) {
1776 *status = GOT_STATUS_MODIFY;
1780 *status = GOT_STATUS_MODIFY;
1786 if (*status == GOT_STATUS_MODIFY) {
1788 err = get_modified_file_content_status(status, f);
1789 } else if (xbit_differs(ie, sb->st_mode))
1790 *status = GOT_STATUS_MODE_CHANGE;
1792 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
1793 err = got_error_from_errno("close");
1795 got_object_blob_close(blob);
1796 if (f != NULL && fclose(f) == EOF && err == NULL)
1797 err = got_error_from_errno2("fclose", abspath);
1798 if (fd != -1 && close(fd) == -1 && err == NULL)
1799 err = got_error_from_errno2("close", abspath);
1804 * Update timestamps in the file index if a file is unmodified and
1805 * we had to run a full content comparison to find out.
1807 static const struct got_error *
1808 sync_timestamps(int wt_fd, const char *path, unsigned char status,
1809 struct got_fileindex_entry *ie, struct stat *sb)
1811 if (status == GOT_STATUS_NO_CHANGE && stat_info_differs(ie, sb))
1812 return got_fileindex_entry_update(ie, wt_fd, path,
1813 ie->blob_sha1, ie->commit_sha1, 1);
1818 static const struct got_error *
1819 update_blob(struct got_worktree *worktree,
1820 struct got_fileindex *fileindex, struct got_fileindex_entry *ie,
1821 struct got_tree_entry *te, const char *path,
1822 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
1825 const struct got_error *err = NULL;
1826 struct got_blob_object *blob = NULL;
1827 char *ondisk_path = NULL;
1828 unsigned char status = GOT_STATUS_NO_CHANGE;
1830 int fd1 = -1, fd2 = -1;
1832 if (asprintf(&ondisk_path, "%s/%s", worktree->root_path, path) == -1)
1833 return got_error_from_errno("asprintf");
1836 if (get_staged_status(ie) != GOT_STATUS_NO_CHANGE) {
1837 err = got_error_path(ie->path, GOT_ERR_FILE_STAGED);
1840 err = get_file_status(&status, &sb, ie, ondisk_path, -1, NULL,
1844 if (status == GOT_STATUS_MISSING || status == GOT_STATUS_DELETE)
1845 sb.st_mode = got_fileindex_perms_to_st(ie);
1847 if (stat(ondisk_path, &sb) == -1) {
1848 if (errno != ENOENT) {
1849 err = got_error_from_errno2("stat",
1853 sb.st_mode = GOT_DEFAULT_FILE_MODE;
1854 status = GOT_STATUS_UNVERSIONED;
1856 if (S_ISREG(sb.st_mode) || S_ISLNK(sb.st_mode))
1857 status = GOT_STATUS_UNVERSIONED;
1859 status = GOT_STATUS_OBSTRUCTED;
1863 if (status == GOT_STATUS_OBSTRUCTED) {
1865 got_fileindex_entry_mark_skipped(ie);
1866 err = (*progress_cb)(progress_arg, status, path);
1869 if (status == GOT_STATUS_CONFLICT) {
1871 got_fileindex_entry_mark_skipped(ie);
1872 err = (*progress_cb)(progress_arg, GOT_STATUS_CANNOT_UPDATE,
1877 if (ie && status != GOT_STATUS_MISSING && S_ISREG(sb.st_mode) &&
1878 (S_ISLNK(te->mode) ||
1879 (te->mode & S_IXUSR) == (sb.st_mode & S_IXUSR))) {
1881 * This is a regular file or an installed bad symlink.
1882 * If the file index indicates that this file is already
1883 * up-to-date with respect to the repository we can skip
1884 * updating contents of this file.
1886 if (got_fileindex_entry_has_commit(ie) &&
1887 memcmp(ie->commit_sha1, worktree->base_commit_id->sha1,
1888 SHA1_DIGEST_LENGTH) == 0) {
1890 err = sync_timestamps(worktree->root_fd,
1891 path, status, ie, &sb);
1894 err = (*progress_cb)(progress_arg, GOT_STATUS_EXISTS,
1898 if (got_fileindex_entry_has_blob(ie) &&
1899 memcmp(ie->blob_sha1, te->id.sha1,
1900 SHA1_DIGEST_LENGTH) == 0) {
1901 /* Different commit but the same blob. */
1902 err = sync_timestamps(worktree->root_fd,
1903 path, status, ie, &sb);
1906 err = (*progress_cb)(progress_arg, GOT_STATUS_EXISTS,
1912 fd1 = got_opentempfd();
1914 err = got_error_from_errno("got_opentempfd");
1917 err = got_object_open_as_blob(&blob, repo, &te->id, 8192, fd1);
1921 if (status == GOT_STATUS_MODIFY || status == GOT_STATUS_ADD) {
1922 int update_timestamps;
1923 struct got_blob_object *blob2 = NULL;
1924 char *label_orig = NULL;
1925 if (got_fileindex_entry_has_blob(ie)) {
1926 fd2 = got_opentempfd();
1928 err = got_error_from_errno("got_opentempfd");
1931 struct got_object_id id2;
1932 memcpy(id2.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
1933 err = got_object_open_as_blob(&blob2, repo, &id2, 8192,
1938 if (got_fileindex_entry_has_commit(ie)) {
1939 char id_str[SHA1_DIGEST_STRING_LENGTH];
1940 if (got_sha1_digest_to_str(ie->commit_sha1, id_str,
1941 sizeof(id_str)) == NULL) {
1942 err = got_error_path(id_str,
1943 GOT_ERR_BAD_OBJ_ID_STR);
1946 if (asprintf(&label_orig, "%s: commit %s",
1947 GOT_MERGE_LABEL_BASE, id_str) == -1) {
1948 err = got_error_from_errno("asprintf");
1952 if (S_ISLNK(te->mode) && S_ISLNK(sb.st_mode)) {
1954 err = got_object_blob_read_to_str(&link_target, blob);
1957 err = merge_symlink(worktree, blob2, ondisk_path, path,
1958 label_orig, link_target, worktree->base_commit_id,
1959 repo, progress_cb, progress_arg);
1962 err = merge_blob(&update_timestamps, worktree, blob2,
1963 ondisk_path, path, sb.st_mode, label_orig, blob,
1964 worktree->base_commit_id, repo,
1965 progress_cb, progress_arg);
1968 if (fd2 != -1 && close(fd2) == -1 && err == NULL) {
1969 err = got_error_from_errno("close");
1973 got_object_blob_close(blob2);
1977 * Do not update timestamps of files with local changes.
1978 * Otherwise, a future status walk would treat them as
1979 * unmodified files again.
1981 err = got_fileindex_entry_update(ie, worktree->root_fd, path,
1982 blob->id.sha1, worktree->base_commit_id->sha1,
1984 } else if (status == GOT_STATUS_MODE_CHANGE) {
1985 err = got_fileindex_entry_update(ie, worktree->root_fd, path,
1986 blob->id.sha1, worktree->base_commit_id->sha1, 0);
1987 } else if (status == GOT_STATUS_DELETE) {
1988 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE, path);
1991 err = got_fileindex_entry_update(ie, worktree->root_fd, path,
1992 blob->id.sha1, worktree->base_commit_id->sha1, 0);
1996 int is_bad_symlink = 0;
1997 if (S_ISLNK(te->mode)) {
1998 err = install_symlink(&is_bad_symlink, worktree,
1999 ondisk_path, path, blob,
2000 status == GOT_STATUS_MISSING, 0,
2001 status == GOT_STATUS_UNVERSIONED, 0,
2002 repo, progress_cb, progress_arg);
2004 err = install_blob(worktree, ondisk_path, path,
2005 te->mode, sb.st_mode, blob,
2006 status == GOT_STATUS_MISSING, 0, 0,
2007 status == GOT_STATUS_UNVERSIONED, repo,
2008 progress_cb, progress_arg);
2014 err = got_fileindex_entry_update(ie,
2015 worktree->root_fd, path, blob->id.sha1,
2016 worktree->base_commit_id->sha1, 1);
2018 err = create_fileindex_entry(&ie, fileindex,
2019 worktree->base_commit_id, worktree->root_fd, path,
2025 if (is_bad_symlink) {
2026 got_fileindex_entry_filetype_set(ie,
2027 GOT_FILEIDX_MODE_BAD_SYMLINK);
2031 if (fd1 != -1 && close(fd1) == -1 && err == NULL) {
2032 err = got_error_from_errno("close");
2035 got_object_blob_close(blob);
2041 static const struct got_error *
2042 remove_ondisk_file(const char *root_path, const char *path)
2044 const struct got_error *err = NULL;
2045 char *ondisk_path = NULL, *parent = NULL;
2047 if (asprintf(&ondisk_path, "%s/%s", root_path, path) == -1)
2048 return got_error_from_errno("asprintf");
2050 if (unlink(ondisk_path) == -1) {
2051 if (errno != ENOENT)
2052 err = got_error_from_errno2("unlink", ondisk_path);
2054 size_t root_len = strlen(root_path);
2055 err = got_path_dirname(&parent, ondisk_path);
2058 while (got_path_cmp(parent, root_path,
2059 strlen(parent), root_len) != 0) {
2061 ondisk_path = parent;
2063 if (rmdir(ondisk_path) == -1) {
2064 if (errno != ENOTEMPTY)
2065 err = got_error_from_errno2("rmdir",
2069 err = got_path_dirname(&parent, ondisk_path);
2080 static const struct got_error *
2081 delete_blob(struct got_worktree *worktree, struct got_fileindex *fileindex,
2082 struct got_fileindex_entry *ie, struct got_repository *repo,
2083 got_worktree_checkout_cb progress_cb, void *progress_arg)
2085 const struct got_error *err = NULL;
2086 unsigned char status;
2090 if (get_staged_status(ie) != GOT_STATUS_NO_CHANGE)
2091 return got_error_path(ie->path, GOT_ERR_FILE_STAGED);
2093 if (asprintf(&ondisk_path, "%s/%s", worktree->root_path, ie->path)
2095 return got_error_from_errno("asprintf");
2097 err = get_file_status(&status, &sb, ie, ondisk_path, -1, NULL, repo);
2101 if (S_ISLNK(sb.st_mode) && status != GOT_STATUS_NO_CHANGE) {
2102 char ondisk_target[PATH_MAX];
2103 ssize_t ondisk_len = readlink(ondisk_path, ondisk_target,
2104 sizeof(ondisk_target));
2105 if (ondisk_len == -1) {
2106 err = got_error_from_errno2("readlink", ondisk_path);
2109 ondisk_target[ondisk_len] = '\0';
2110 err = install_symlink_conflict(NULL, worktree->base_commit_id,
2111 NULL, NULL, /* XXX pass common ancestor info? */
2112 ondisk_target, ondisk_path);
2115 err = (*progress_cb)(progress_arg, GOT_STATUS_CONFLICT,
2120 if (status == GOT_STATUS_MODIFY || status == GOT_STATUS_CONFLICT ||
2121 status == GOT_STATUS_ADD) {
2122 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE, ie->path);
2126 * Preserve the working file and change the deleted blob's
2127 * entry into a schedule-add entry.
2129 err = got_fileindex_entry_update(ie, worktree->root_fd,
2130 ie->path, NULL, NULL, 0);
2132 err = (*progress_cb)(progress_arg, GOT_STATUS_DELETE, ie->path);
2135 if (status == GOT_STATUS_NO_CHANGE) {
2136 err = remove_ondisk_file(worktree->root_path, ie->path);
2140 got_fileindex_entry_remove(fileindex, ie);
2147 struct diff_cb_arg {
2148 struct got_fileindex *fileindex;
2149 struct got_worktree *worktree;
2150 struct got_repository *repo;
2151 got_worktree_checkout_cb progress_cb;
2153 got_cancel_cb cancel_cb;
2157 static const struct got_error *
2158 diff_old_new(void *arg, struct got_fileindex_entry *ie,
2159 struct got_tree_entry *te, const char *parent_path)
2161 struct diff_cb_arg *a = arg;
2163 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
2164 return got_error(GOT_ERR_CANCELLED);
2166 return update_blob(a->worktree, a->fileindex, ie, te,
2167 ie->path, a->repo, a->progress_cb, a->progress_arg);
2170 static const struct got_error *
2171 diff_old(void *arg, struct got_fileindex_entry *ie, const char *parent_path)
2173 struct diff_cb_arg *a = arg;
2175 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
2176 return got_error(GOT_ERR_CANCELLED);
2178 return delete_blob(a->worktree, a->fileindex, ie,
2179 a->repo, a->progress_cb, a->progress_arg);
2182 static const struct got_error *
2183 diff_new(void *arg, struct got_tree_entry *te, const char *parent_path)
2185 struct diff_cb_arg *a = arg;
2186 const struct got_error *err;
2189 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
2190 return got_error(GOT_ERR_CANCELLED);
2192 if (got_object_tree_entry_is_submodule(te))
2195 if (asprintf(&path, "%s%s%s", parent_path,
2196 parent_path[0] ? "/" : "", te->name)
2198 return got_error_from_errno("asprintf");
2200 if (S_ISDIR(te->mode))
2201 err = add_dir_on_disk(a->worktree, path);
2203 err = update_blob(a->worktree, a->fileindex, NULL, te, path,
2204 a->repo, a->progress_cb, a->progress_arg);
2210 const struct got_error *
2211 got_worktree_get_uuid(char **uuidstr, struct got_worktree *worktree)
2213 uint32_t uuid_status;
2215 uuid_to_string(&worktree->uuid, uuidstr, &uuid_status);
2216 if (uuid_status != uuid_s_ok) {
2218 return got_error_uuid(uuid_status, "uuid_to_string");
2224 static const struct got_error *
2225 get_ref_name(char **refname, struct got_worktree *worktree, const char *prefix)
2227 const struct got_error *err = NULL;
2228 char *uuidstr = NULL;
2232 err = got_worktree_get_uuid(&uuidstr, worktree);
2236 if (asprintf(refname, "%s-%s", prefix, uuidstr) == -1) {
2237 err = got_error_from_errno("asprintf");
2244 const struct got_error *
2245 got_worktree_get_base_ref_name(char **refname, struct got_worktree *worktree)
2247 return get_ref_name(refname, worktree, GOT_WORKTREE_BASE_REF_PREFIX);
2250 static const struct got_error *
2251 get_rebase_tmp_ref_name(char **refname, struct got_worktree *worktree)
2253 return get_ref_name(refname, worktree,
2254 GOT_WORKTREE_REBASE_TMP_REF_PREFIX);
2257 static const struct got_error *
2258 get_newbase_symref_name(char **refname, struct got_worktree *worktree)
2260 return get_ref_name(refname, worktree, GOT_WORKTREE_NEWBASE_REF_PREFIX);
2263 static const struct got_error *
2264 get_rebase_branch_symref_name(char **refname, struct got_worktree *worktree)
2266 return get_ref_name(refname, worktree,
2267 GOT_WORKTREE_REBASE_BRANCH_REF_PREFIX);
2270 static const struct got_error *
2271 get_rebase_commit_ref_name(char **refname, struct got_worktree *worktree)
2273 return get_ref_name(refname, worktree,
2274 GOT_WORKTREE_REBASE_COMMIT_REF_PREFIX);
2277 static const struct got_error *
2278 get_histedit_tmp_ref_name(char **refname, struct got_worktree *worktree)
2280 return get_ref_name(refname, worktree,
2281 GOT_WORKTREE_HISTEDIT_TMP_REF_PREFIX);
2284 static const struct got_error *
2285 get_histedit_branch_symref_name(char **refname, struct got_worktree *worktree)
2287 return get_ref_name(refname, worktree,
2288 GOT_WORKTREE_HISTEDIT_BRANCH_REF_PREFIX);
2291 static const struct got_error *
2292 get_histedit_base_commit_ref_name(char **refname, struct got_worktree *worktree)
2294 return get_ref_name(refname, worktree,
2295 GOT_WORKTREE_HISTEDIT_BASE_COMMIT_REF_PREFIX);
2298 static const struct got_error *
2299 get_histedit_commit_ref_name(char **refname, struct got_worktree *worktree)
2301 return get_ref_name(refname, worktree,
2302 GOT_WORKTREE_HISTEDIT_COMMIT_REF_PREFIX);
2305 const struct got_error *
2306 got_worktree_get_histedit_script_path(char **path,
2307 struct got_worktree *worktree)
2309 if (asprintf(path, "%s/%s/%s", worktree->root_path,
2310 GOT_WORKTREE_GOT_DIR, GOT_WORKTREE_HISTEDIT_SCRIPT) == -1) {
2312 return got_error_from_errno("asprintf");
2317 static const struct got_error *
2318 get_merge_branch_ref_name(char **refname, struct got_worktree *worktree)
2320 return get_ref_name(refname, worktree,
2321 GOT_WORKTREE_MERGE_BRANCH_REF_PREFIX);
2324 static const struct got_error *
2325 get_merge_commit_ref_name(char **refname, struct got_worktree *worktree)
2327 return get_ref_name(refname, worktree,
2328 GOT_WORKTREE_MERGE_COMMIT_REF_PREFIX);
2332 * Prevent Git's garbage collector from deleting our base commit by
2333 * setting a reference to our base commit's ID.
2335 static const struct got_error *
2336 ref_base_commit(struct got_worktree *worktree, struct got_repository *repo)
2338 const struct got_error *err = NULL;
2339 struct got_reference *ref = NULL;
2342 err = got_worktree_get_base_ref_name(&refname, worktree);
2346 err = got_ref_alloc(&ref, refname, worktree->base_commit_id);
2350 err = got_ref_write(ref, repo);
2358 static const struct got_error *
2359 get_fileindex_path(char **fileindex_path, struct got_worktree *worktree)
2361 const struct got_error *err = NULL;
2363 if (asprintf(fileindex_path, "%s/%s/%s", worktree->root_path,
2364 GOT_WORKTREE_GOT_DIR, GOT_WORKTREE_FILE_INDEX) == -1) {
2365 err = got_error_from_errno("asprintf");
2366 *fileindex_path = NULL;
2372 static const struct got_error *
2373 open_fileindex(struct got_fileindex **fileindex, char **fileindex_path,
2374 struct got_worktree *worktree)
2376 const struct got_error *err = NULL;
2379 *fileindex_path = NULL;
2380 *fileindex = got_fileindex_alloc();
2381 if (*fileindex == NULL)
2382 return got_error_from_errno("got_fileindex_alloc");
2384 err = get_fileindex_path(fileindex_path, worktree);
2388 index = fopen(*fileindex_path, "rbe");
2389 if (index == NULL) {
2390 if (errno != ENOENT)
2391 err = got_error_from_errno2("fopen", *fileindex_path);
2393 err = got_fileindex_read(*fileindex, index);
2394 if (fclose(index) == EOF && err == NULL)
2395 err = got_error_from_errno("fclose");
2399 free(*fileindex_path);
2400 *fileindex_path = NULL;
2401 got_fileindex_free(*fileindex);
2407 struct bump_base_commit_id_arg {
2408 struct got_object_id *base_commit_id;
2411 const char *entry_name;
2412 got_worktree_checkout_cb progress_cb;
2416 /* Bump base commit ID of all files within an updated part of the work tree. */
2417 static const struct got_error *
2418 bump_base_commit_id(void *arg, struct got_fileindex_entry *ie)
2420 const struct got_error *err;
2421 struct bump_base_commit_id_arg *a = arg;
2423 if (a->entry_name) {
2424 if (strcmp(ie->path, a->path) != 0)
2426 } else if (!got_path_is_child(ie->path, a->path, a->path_len))
2429 if (got_fileindex_entry_was_skipped(ie))
2432 if (memcmp(ie->commit_sha1, a->base_commit_id->sha1,
2433 SHA1_DIGEST_LENGTH) == 0)
2436 if (a->progress_cb) {
2437 err = (*a->progress_cb)(a->progress_arg, GOT_STATUS_BUMP_BASE,
2442 memcpy(ie->commit_sha1, a->base_commit_id->sha1, SHA1_DIGEST_LENGTH);
2446 static const struct got_error *
2447 bump_base_commit_id_everywhere(struct got_worktree *worktree,
2448 struct got_fileindex *fileindex,
2449 got_worktree_checkout_cb progress_cb, void *progress_arg)
2451 struct bump_base_commit_id_arg bbc_arg;
2453 bbc_arg.base_commit_id = worktree->base_commit_id;
2454 bbc_arg.entry_name = NULL;
2456 bbc_arg.path_len = 0;
2457 bbc_arg.progress_cb = progress_cb;
2458 bbc_arg.progress_arg = progress_arg;
2460 return got_fileindex_for_each_entry_safe(fileindex,
2461 bump_base_commit_id, &bbc_arg);
2464 static const struct got_error *
2465 sync_fileindex(struct got_fileindex *fileindex, const char *fileindex_path)
2467 const struct got_error *err = NULL;
2468 char *new_fileindex_path = NULL;
2469 FILE *new_index = NULL;
2470 struct timespec timeout;
2472 err = got_opentemp_named(&new_fileindex_path, &new_index,
2473 fileindex_path, "");
2477 err = got_fileindex_write(fileindex, new_index);
2481 if (rename(new_fileindex_path, fileindex_path) != 0) {
2482 err = got_error_from_errno3("rename", new_fileindex_path,
2484 unlink(new_fileindex_path);
2488 * Sleep for a short amount of time to ensure that files modified after
2489 * this program exits have a different time stamp from the one which
2490 * was recorded in the file index.
2493 timeout.tv_nsec = 1;
2494 nanosleep(&timeout, NULL);
2498 free(new_fileindex_path);
2502 static const struct got_error *
2503 find_tree_entry_for_checkout(int *entry_type, char **tree_relpath,
2504 struct got_object_id **tree_id, const char *wt_relpath,
2505 struct got_commit_object *base_commit, struct got_worktree *worktree,
2506 struct got_repository *repo)
2508 const struct got_error *err = NULL;
2509 struct got_object_id *id = NULL;
2510 char *in_repo_path = NULL;
2511 int is_root_wt = got_path_is_root_dir(worktree->path_prefix);
2513 *entry_type = GOT_OBJ_TYPE_ANY;
2514 *tree_relpath = NULL;
2517 if (wt_relpath[0] == '\0') {
2518 /* Check out all files within the work tree. */
2519 *entry_type = GOT_OBJ_TYPE_TREE;
2520 *tree_relpath = strdup("");
2521 if (*tree_relpath == NULL) {
2522 err = got_error_from_errno("strdup");
2525 err = got_object_id_by_path(tree_id, repo, base_commit,
2526 worktree->path_prefix);
2532 /* Check out a subset of files in the work tree. */
2534 if (asprintf(&in_repo_path, "%s%s%s", worktree->path_prefix,
2535 is_root_wt ? "" : "/", wt_relpath) == -1) {
2536 err = got_error_from_errno("asprintf");
2540 err = got_object_id_by_path(&id, repo, base_commit, in_repo_path);
2545 in_repo_path = NULL;
2547 err = got_object_get_type(entry_type, repo, id);
2551 if (*entry_type == GOT_OBJ_TYPE_BLOB) {
2552 /* Check out a single file. */
2553 if (strchr(wt_relpath, '/') == NULL) {
2554 /* Check out a single file in work tree's root dir. */
2555 in_repo_path = strdup(worktree->path_prefix);
2556 if (in_repo_path == NULL) {
2557 err = got_error_from_errno("strdup");
2560 *tree_relpath = strdup("");
2561 if (*tree_relpath == NULL) {
2562 err = got_error_from_errno("strdup");
2566 /* Check out a single file in a subdirectory. */
2567 err = got_path_dirname(tree_relpath, wt_relpath);
2570 if (asprintf(&in_repo_path, "%s%s%s",
2571 worktree->path_prefix, is_root_wt ? "" : "/",
2572 *tree_relpath) == -1) {
2573 err = got_error_from_errno("asprintf");
2577 err = got_object_id_by_path(tree_id, repo,
2578 base_commit, in_repo_path);
2580 /* Check out all files within a subdirectory. */
2581 *tree_id = got_object_id_dup(id);
2582 if (*tree_id == NULL) {
2583 err = got_error_from_errno("got_object_id_dup");
2586 *tree_relpath = strdup(wt_relpath);
2587 if (*tree_relpath == NULL) {
2588 err = got_error_from_errno("strdup");
2596 *entry_type = GOT_OBJ_TYPE_ANY;
2597 free(*tree_relpath);
2598 *tree_relpath = NULL;
2605 static const struct got_error *
2606 checkout_files(struct got_worktree *worktree, struct got_fileindex *fileindex,
2607 const char *relpath, struct got_object_id *tree_id, const char *entry_name,
2608 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
2609 void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
2611 const struct got_error *err = NULL;
2612 struct got_commit_object *commit = NULL;
2613 struct got_tree_object *tree = NULL;
2614 struct got_fileindex_diff_tree_cb diff_cb;
2615 struct diff_cb_arg arg;
2617 err = ref_base_commit(worktree, repo);
2619 if (!(err->code == GOT_ERR_ERRNO &&
2620 (errno == EACCES || errno == EROFS)))
2622 err = (*progress_cb)(progress_arg,
2623 GOT_STATUS_BASE_REF_ERR, worktree->root_path);
2628 err = got_object_open_as_commit(&commit, repo,
2629 worktree->base_commit_id);
2633 err = got_object_open_as_tree(&tree, repo, tree_id);
2638 got_object_tree_find_entry(tree, entry_name) == NULL) {
2639 err = got_error_path(entry_name, GOT_ERR_NO_TREE_ENTRY);
2643 diff_cb.diff_old_new = diff_old_new;
2644 diff_cb.diff_old = diff_old;
2645 diff_cb.diff_new = diff_new;
2646 arg.fileindex = fileindex;
2647 arg.worktree = worktree;
2649 arg.progress_cb = progress_cb;
2650 arg.progress_arg = progress_arg;
2651 arg.cancel_cb = cancel_cb;
2652 arg.cancel_arg = cancel_arg;
2653 err = got_fileindex_diff_tree(fileindex, tree, relpath,
2654 entry_name, repo, &diff_cb, &arg);
2657 got_object_tree_close(tree);
2659 got_object_commit_close(commit);
2663 const struct got_error *
2664 got_worktree_checkout_files(struct got_worktree *worktree,
2665 struct got_pathlist_head *paths, struct got_repository *repo,
2666 got_worktree_checkout_cb progress_cb, void *progress_arg,
2667 got_cancel_cb cancel_cb, void *cancel_arg)
2669 const struct got_error *err = NULL, *sync_err, *unlockerr;
2670 struct got_commit_object *commit = NULL;
2671 struct got_tree_object *tree = NULL;
2672 struct got_fileindex *fileindex = NULL;
2673 char *fileindex_path = NULL;
2674 struct got_pathlist_entry *pe;
2675 struct tree_path_data {
2676 STAILQ_ENTRY(tree_path_data) entry;
2677 struct got_object_id *tree_id;
2682 STAILQ_HEAD(tree_paths, tree_path_data) tree_paths;
2684 STAILQ_INIT(&tree_paths);
2686 err = lock_worktree(worktree, LOCK_EX);
2690 err = got_object_open_as_commit(&commit, repo,
2691 worktree->base_commit_id);
2695 /* Map all specified paths to in-repository trees. */
2696 TAILQ_FOREACH(pe, paths, entry) {
2697 tpd = malloc(sizeof(*tpd));
2699 err = got_error_from_errno("malloc");
2703 err = find_tree_entry_for_checkout(&tpd->entry_type,
2704 &tpd->relpath, &tpd->tree_id, pe->path, commit,
2711 if (tpd->entry_type == GOT_OBJ_TYPE_BLOB) {
2712 err = got_path_basename(&tpd->entry_name, pe->path);
2720 tpd->entry_name = NULL;
2722 STAILQ_INSERT_TAIL(&tree_paths, tpd, entry);
2726 * Read the file index.
2727 * Checking out files is supposed to be an idempotent operation.
2728 * If the on-disk file index is incomplete we will try to complete it.
2730 err = open_fileindex(&fileindex, &fileindex_path, worktree);
2734 tpd = STAILQ_FIRST(&tree_paths);
2735 TAILQ_FOREACH(pe, paths, entry) {
2736 struct bump_base_commit_id_arg bbc_arg;
2738 err = checkout_files(worktree, fileindex, tpd->relpath,
2739 tpd->tree_id, tpd->entry_name, repo,
2740 progress_cb, progress_arg, cancel_cb, cancel_arg);
2744 bbc_arg.base_commit_id = worktree->base_commit_id;
2745 bbc_arg.entry_name = tpd->entry_name;
2746 bbc_arg.path = pe->path;
2747 bbc_arg.path_len = pe->path_len;
2748 bbc_arg.progress_cb = progress_cb;
2749 bbc_arg.progress_arg = progress_arg;
2750 err = got_fileindex_for_each_entry_safe(fileindex,
2751 bump_base_commit_id, &bbc_arg);
2755 tpd = STAILQ_NEXT(tpd, entry);
2757 sync_err = sync_fileindex(fileindex, fileindex_path);
2758 if (sync_err && err == NULL)
2761 free(fileindex_path);
2763 got_object_tree_close(tree);
2765 got_object_commit_close(commit);
2767 got_fileindex_free(fileindex);
2768 while (!STAILQ_EMPTY(&tree_paths)) {
2769 tpd = STAILQ_FIRST(&tree_paths);
2770 STAILQ_REMOVE_HEAD(&tree_paths, entry);
2775 unlockerr = lock_worktree(worktree, LOCK_SH);
2776 if (unlockerr && err == NULL)
2781 struct merge_file_cb_arg {
2782 struct got_worktree *worktree;
2783 struct got_fileindex *fileindex;
2784 got_worktree_checkout_cb progress_cb;
2786 got_cancel_cb cancel_cb;
2788 const char *label_orig;
2789 struct got_object_id *commit_id2;
2790 int allow_bad_symlinks;
2793 static const struct got_error *
2794 merge_file_cb(void *arg, struct got_blob_object *blob1,
2795 struct got_blob_object *blob2, FILE *f1, FILE *f2,
2796 struct got_object_id *id1, struct got_object_id *id2,
2797 const char *path1, const char *path2,
2798 mode_t mode1, mode_t mode2, struct got_repository *repo)
2800 static const struct got_error *err = NULL;
2801 struct merge_file_cb_arg *a = arg;
2802 struct got_fileindex_entry *ie;
2803 char *ondisk_path = NULL;
2805 unsigned char status;
2806 int local_changes_subsumed;
2807 FILE *f_orig = NULL, *f_deriv = NULL, *f_deriv2 = NULL;
2808 char *id_str = NULL, *label_deriv2 = NULL;
2810 if (blob1 && blob2) {
2811 ie = got_fileindex_entry_get(a->fileindex, path2,
2814 return (*a->progress_cb)(a->progress_arg,
2815 GOT_STATUS_MISSING, path2);
2817 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
2819 return got_error_from_errno("asprintf");
2821 err = get_file_status(&status, &sb, ie, ondisk_path, -1, NULL,
2826 if (status == GOT_STATUS_DELETE) {
2827 err = (*a->progress_cb)(a->progress_arg,
2828 GOT_STATUS_MERGE, path2);
2831 if (status != GOT_STATUS_NO_CHANGE &&
2832 status != GOT_STATUS_MODIFY &&
2833 status != GOT_STATUS_CONFLICT &&
2834 status != GOT_STATUS_ADD) {
2835 err = (*a->progress_cb)(a->progress_arg, status, path2);
2839 if (S_ISLNK(mode1) && S_ISLNK(mode2)) {
2841 err = got_object_blob_read_to_str(&link_target2, blob2);
2844 err = merge_symlink(a->worktree, blob1, ondisk_path,
2845 path2, a->label_orig, link_target2, a->commit_id2,
2846 repo, a->progress_cb, a->progress_arg);
2851 f_orig = got_opentemp();
2852 if (f_orig == NULL) {
2853 err = got_error_from_errno("got_opentemp");
2856 err = got_object_blob_dump_to_file(NULL, NULL, NULL,
2861 f_deriv2 = got_opentemp();
2862 if (f_deriv2 == NULL)
2864 err = got_object_blob_dump_to_file(NULL, NULL, NULL,
2869 fd = open(ondisk_path,
2870 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
2872 err = got_error_from_errno2("open",
2876 f_deriv = fdopen(fd, "r");
2877 if (f_deriv == NULL) {
2878 err = got_error_from_errno2("fdopen",
2883 err = got_object_id_str(&id_str, a->commit_id2);
2886 if (asprintf(&label_deriv2, "%s: commit %s",
2887 GOT_MERGE_LABEL_MERGED, id_str) == -1) {
2888 err = got_error_from_errno("asprintf");
2891 err = merge_file(&local_changes_subsumed, a->worktree,
2892 f_orig, f_deriv, f_deriv2, ondisk_path, path2,
2893 sb.st_mode, a->label_orig, NULL, label_deriv2,
2894 GOT_DIFF_ALGORITHM_PATIENCE, repo,
2895 a->progress_cb, a->progress_arg);
2898 ie = got_fileindex_entry_get(a->fileindex, path1,
2901 return (*a->progress_cb)(a->progress_arg,
2902 GOT_STATUS_MISSING, path1);
2904 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
2906 return got_error_from_errno("asprintf");
2908 err = get_file_status(&status, &sb, ie, ondisk_path, -1, NULL,
2914 case GOT_STATUS_NO_CHANGE:
2915 err = (*a->progress_cb)(a->progress_arg,
2916 GOT_STATUS_DELETE, path1);
2919 err = remove_ondisk_file(a->worktree->root_path, path1);
2923 got_fileindex_entry_mark_deleted_from_disk(ie);
2925 case GOT_STATUS_DELETE:
2926 case GOT_STATUS_MISSING:
2927 err = (*a->progress_cb)(a->progress_arg,
2928 GOT_STATUS_DELETE, path1);
2932 got_fileindex_entry_mark_deleted_from_disk(ie);
2934 case GOT_STATUS_ADD: {
2935 struct got_object_id *id;
2939 * Delete the added file only if its content already
2940 * exists in the repository.
2942 err = got_object_blob_file_create(&id, &blob1_f,
2943 &blob1_size, path1);
2946 if (got_object_id_cmp(id, id1) == 0) {
2947 err = (*a->progress_cb)(a->progress_arg,
2948 GOT_STATUS_DELETE, path1);
2951 err = remove_ondisk_file(a->worktree->root_path,
2956 got_fileindex_entry_remove(a->fileindex,
2959 err = (*a->progress_cb)(a->progress_arg,
2960 GOT_STATUS_CANNOT_DELETE, path1);
2962 if (fclose(blob1_f) == EOF && err == NULL)
2963 err = got_error_from_errno("fclose");
2969 case GOT_STATUS_MODIFY:
2970 case GOT_STATUS_CONFLICT:
2971 err = (*a->progress_cb)(a->progress_arg,
2972 GOT_STATUS_CANNOT_DELETE, path1);
2976 case GOT_STATUS_OBSTRUCTED:
2977 err = (*a->progress_cb)(a->progress_arg, status, path1);
2985 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
2987 return got_error_from_errno("asprintf");
2988 ie = got_fileindex_entry_get(a->fileindex, path2,
2991 err = get_file_status(&status, &sb, ie, ondisk_path,
2995 if (status != GOT_STATUS_NO_CHANGE &&
2996 status != GOT_STATUS_MODIFY &&
2997 status != GOT_STATUS_CONFLICT &&
2998 status != GOT_STATUS_ADD) {
2999 err = (*a->progress_cb)(a->progress_arg,
3003 if (S_ISLNK(mode2) && S_ISLNK(sb.st_mode)) {
3005 err = got_object_blob_read_to_str(&link_target2,
3009 err = merge_symlink(a->worktree, NULL,
3010 ondisk_path, path2, a->label_orig,
3011 link_target2, a->commit_id2, repo,
3012 a->progress_cb, a->progress_arg);
3014 } else if (S_ISREG(sb.st_mode)) {
3015 err = merge_blob(&local_changes_subsumed,
3016 a->worktree, NULL, ondisk_path, path2,
3017 sb.st_mode, a->label_orig, blob2,
3018 a->commit_id2, repo, a->progress_cb,
3021 err = got_error_path(ondisk_path,
3022 GOT_ERR_FILE_OBSTRUCTED);
3026 if (status == GOT_STATUS_DELETE) {
3027 err = got_fileindex_entry_update(ie,
3028 a->worktree->root_fd, path2, blob2->id.sha1,
3029 a->worktree->base_commit_id->sha1, 0);
3034 int is_bad_symlink = 0;
3035 sb.st_mode = GOT_DEFAULT_FILE_MODE;
3036 if (S_ISLNK(mode2)) {
3037 err = install_symlink(&is_bad_symlink,
3038 a->worktree, ondisk_path, path2, blob2, 0,
3039 0, 1, a->allow_bad_symlinks, repo,
3040 a->progress_cb, a->progress_arg);
3042 err = install_blob(a->worktree, ondisk_path, path2,
3043 mode2, sb.st_mode, blob2, 0, 0, 0, 1, repo,
3044 a->progress_cb, a->progress_arg);
3048 err = got_fileindex_entry_alloc(&ie, path2);
3051 err = got_fileindex_entry_update(ie,
3052 a->worktree->root_fd, path2, NULL, NULL, 1);
3054 got_fileindex_entry_free(ie);
3057 err = got_fileindex_entry_add(a->fileindex, ie);
3059 got_fileindex_entry_free(ie);
3062 if (is_bad_symlink) {
3063 got_fileindex_entry_filetype_set(ie,
3064 GOT_FILEIDX_MODE_BAD_SYMLINK);
3069 if (f_orig && fclose(f_orig) == EOF && err == NULL)
3070 err = got_error_from_errno("fclose");
3071 if (f_deriv && fclose(f_deriv) == EOF && err == NULL)
3072 err = got_error_from_errno("fclose");
3073 if (f_deriv2 && fclose(f_deriv2) == EOF && err == NULL)
3074 err = got_error_from_errno("fclose");
3081 static const struct got_error *
3082 check_mixed_commits(void *arg, struct got_fileindex_entry *ie)
3084 struct got_worktree *worktree = arg;
3086 /* Reject merges into a work tree with mixed base commits. */
3087 if (got_fileindex_entry_has_commit(ie) &&
3088 memcmp(ie->commit_sha1, worktree->base_commit_id->sha1,
3089 SHA1_DIGEST_LENGTH) != 0)
3090 return got_error(GOT_ERR_MIXED_COMMITS);
3095 struct check_merge_conflicts_arg {
3096 struct got_worktree *worktree;
3097 struct got_fileindex *fileindex;
3098 struct got_repository *repo;
3101 static const struct got_error *
3102 check_merge_conflicts(void *arg, struct got_blob_object *blob1,
3103 struct got_blob_object *blob2, FILE *f1, FILE *f2,
3104 struct got_object_id *id1, struct got_object_id *id2,
3105 const char *path1, const char *path2,
3106 mode_t mode1, mode_t mode2, struct got_repository *repo)
3108 const struct got_error *err = NULL;
3109 struct check_merge_conflicts_arg *a = arg;
3110 unsigned char status;
3112 struct got_fileindex_entry *ie;
3113 const char *path = path2 ? path2 : path1;
3114 struct got_object_id *id = id2 ? id2 : id1;
3120 ie = got_fileindex_entry_get(a->fileindex, path, strlen(path));
3124 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path, ie->path)
3126 return got_error_from_errno("asprintf");
3128 /* Reject merges into a work tree with conflicted files. */
3129 err = get_file_status(&status, &sb, ie, ondisk_path, -1, NULL, a->repo);
3133 if (status == GOT_STATUS_CONFLICT)
3134 return got_error(GOT_ERR_CONFLICTS);
3139 static const struct got_error *
3140 merge_files(struct got_worktree *worktree, struct got_fileindex *fileindex,
3141 const char *fileindex_path, struct got_object_id *commit_id1,
3142 struct got_object_id *commit_id2, struct got_repository *repo,
3143 got_worktree_checkout_cb progress_cb, void *progress_arg,
3144 got_cancel_cb cancel_cb, void *cancel_arg)
3146 const struct got_error *err = NULL, *sync_err;
3147 struct got_object_id *tree_id1 = NULL, *tree_id2 = NULL;
3148 struct got_tree_object *tree1 = NULL, *tree2 = NULL;
3149 struct got_commit_object *commit1 = NULL, *commit2 = NULL;
3150 struct check_merge_conflicts_arg cmc_arg;
3151 struct merge_file_cb_arg arg;
3152 char *label_orig = NULL;
3153 FILE *f1 = NULL, *f2 = NULL;
3154 int fd1 = -1, fd2 = -1;
3157 err = got_object_open_as_commit(&commit1, repo, commit_id1);
3160 err = got_object_id_by_path(&tree_id1, repo, commit1,
3161 worktree->path_prefix);
3162 if (err && err->code != GOT_ERR_NO_TREE_ENTRY)
3168 err = got_object_open_as_tree(&tree1, repo, tree_id1);
3172 err = got_object_id_str(&id_str, commit_id1);
3176 if (asprintf(&label_orig, "%s: commit %s",
3177 GOT_MERGE_LABEL_BASE, id_str) == -1) {
3178 err = got_error_from_errno("asprintf");
3184 f1 = got_opentemp();
3186 err = got_error_from_errno("got_opentemp");
3191 err = got_object_open_as_commit(&commit2, repo, commit_id2);
3195 err = got_object_id_by_path(&tree_id2, repo, commit2,
3196 worktree->path_prefix);
3200 err = got_object_open_as_tree(&tree2, repo, tree_id2);
3204 f2 = got_opentemp();
3206 err = got_error_from_errno("got_opentemp");
3210 fd1 = got_opentempfd();
3212 err = got_error_from_errno("got_opentempfd");
3216 fd2 = got_opentempfd();
3218 err = got_error_from_errno("got_opentempfd");
3222 cmc_arg.worktree = worktree;
3223 cmc_arg.fileindex = fileindex;
3224 cmc_arg.repo = repo;
3225 err = got_diff_tree(tree1, tree2, f1, f2, fd1, fd2, "", "", repo,
3226 check_merge_conflicts, &cmc_arg, 0);
3230 arg.worktree = worktree;
3231 arg.fileindex = fileindex;
3232 arg.progress_cb = progress_cb;
3233 arg.progress_arg = progress_arg;
3234 arg.cancel_cb = cancel_cb;
3235 arg.cancel_arg = cancel_arg;
3236 arg.label_orig = label_orig;
3237 arg.commit_id2 = commit_id2;
3238 arg.allow_bad_symlinks = 1; /* preserve bad symlinks across merges */
3239 err = got_diff_tree(tree1, tree2, f1, f2, fd1, fd2, "", "", repo,
3240 merge_file_cb, &arg, 1);
3241 sync_err = sync_fileindex(fileindex, fileindex_path);
3242 if (sync_err && err == NULL)
3246 got_object_commit_close(commit1);
3248 got_object_commit_close(commit2);
3250 got_object_tree_close(tree1);
3252 got_object_tree_close(tree2);
3253 if (f1 && fclose(f1) == EOF && err == NULL)
3254 err = got_error_from_errno("fclose");
3255 if (f2 && fclose(f2) == EOF && err == NULL)
3256 err = got_error_from_errno("fclose");
3257 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
3258 err = got_error_from_errno("close");
3259 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
3260 err = got_error_from_errno("close");
3265 const struct got_error *
3266 got_worktree_merge_files(struct got_worktree *worktree,
3267 struct got_object_id *commit_id1, struct got_object_id *commit_id2,
3268 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
3269 void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
3271 const struct got_error *err, *unlockerr;
3272 char *fileindex_path = NULL;
3273 struct got_fileindex *fileindex = NULL;
3275 err = lock_worktree(worktree, LOCK_EX);
3279 err = open_fileindex(&fileindex, &fileindex_path, worktree);
3283 err = got_fileindex_for_each_entry_safe(fileindex, check_mixed_commits,
3288 err = merge_files(worktree, fileindex, fileindex_path, commit_id1,
3289 commit_id2, repo, progress_cb, progress_arg,
3290 cancel_cb, cancel_arg);
3293 got_fileindex_free(fileindex);
3294 free(fileindex_path);
3295 unlockerr = lock_worktree(worktree, LOCK_SH);
3296 if (unlockerr && err == NULL)
3301 struct diff_dir_cb_arg {
3302 struct got_fileindex *fileindex;
3303 struct got_worktree *worktree;
3304 const char *status_path;
3305 size_t status_path_len;
3306 struct got_repository *repo;
3307 got_worktree_status_cb status_cb;
3309 got_cancel_cb cancel_cb;
3311 /* A pathlist containing per-directory pathlists of ignore patterns. */
3312 struct got_pathlist_head *ignores;
3313 int report_unchanged;
3317 static const struct got_error *
3318 report_file_status(struct got_fileindex_entry *ie, const char *abspath,
3319 int dirfd, const char *de_name,
3320 got_worktree_status_cb status_cb, void *status_arg,
3321 struct got_repository *repo, int report_unchanged)
3323 const struct got_error *err = NULL;
3324 unsigned char status = GOT_STATUS_NO_CHANGE;
3325 unsigned char staged_status = get_staged_status(ie);
3327 struct got_object_id blob_id, commit_id, staged_blob_id;
3328 struct got_object_id *blob_idp = NULL, *commit_idp = NULL;
3329 struct got_object_id *staged_blob_idp = NULL;
3331 err = get_file_status(&status, &sb, ie, abspath, dirfd, de_name, repo);
3335 if (status == GOT_STATUS_NO_CHANGE &&
3336 staged_status == GOT_STATUS_NO_CHANGE && !report_unchanged)
3339 if (got_fileindex_entry_has_blob(ie)) {
3340 memcpy(blob_id.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
3341 blob_idp = &blob_id;
3343 if (got_fileindex_entry_has_commit(ie)) {
3344 memcpy(commit_id.sha1, ie->commit_sha1, SHA1_DIGEST_LENGTH);
3345 commit_idp = &commit_id;
3347 if (staged_status == GOT_STATUS_ADD ||
3348 staged_status == GOT_STATUS_MODIFY) {
3349 memcpy(staged_blob_id.sha1, ie->staged_blob_sha1,
3350 SHA1_DIGEST_LENGTH);
3351 staged_blob_idp = &staged_blob_id;
3354 return (*status_cb)(status_arg, status, staged_status,
3355 ie->path, blob_idp, staged_blob_idp, commit_idp, dirfd, de_name);
3358 static const struct got_error *
3359 status_old_new(void *arg, struct got_fileindex_entry *ie,
3360 struct dirent *de, const char *parent_path, int dirfd)
3362 const struct got_error *err = NULL;
3363 struct diff_dir_cb_arg *a = arg;
3366 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
3367 return got_error(GOT_ERR_CANCELLED);
3369 if (got_path_cmp(parent_path, a->status_path,
3370 strlen(parent_path), a->status_path_len) != 0 &&
3371 !got_path_is_child(parent_path, a->status_path, a->status_path_len))
3374 if (parent_path[0]) {
3375 if (asprintf(&abspath, "%s/%s/%s", a->worktree->root_path,
3376 parent_path, de->d_name) == -1)
3377 return got_error_from_errno("asprintf");
3379 if (asprintf(&abspath, "%s/%s", a->worktree->root_path,
3381 return got_error_from_errno("asprintf");
3384 err = report_file_status(ie, abspath, dirfd, de->d_name,
3385 a->status_cb, a->status_arg, a->repo, a->report_unchanged);
3390 static const struct got_error *
3391 status_old(void *arg, struct got_fileindex_entry *ie, const char *parent_path)
3393 struct diff_dir_cb_arg *a = arg;
3394 struct got_object_id blob_id, commit_id;
3395 unsigned char status;
3397 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
3398 return got_error(GOT_ERR_CANCELLED);
3400 if (!got_path_is_child(ie->path, a->status_path, a->status_path_len))
3403 memcpy(blob_id.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
3404 memcpy(commit_id.sha1, ie->commit_sha1, SHA1_DIGEST_LENGTH);
3405 if (got_fileindex_entry_has_file_on_disk(ie))
3406 status = GOT_STATUS_MISSING;
3408 status = GOT_STATUS_DELETE;
3409 return (*a->status_cb)(a->status_arg, status, get_staged_status(ie),
3410 ie->path, &blob_id, NULL, &commit_id, -1, NULL);
3414 free_ignorelist(struct got_pathlist_head *ignorelist)
3416 struct got_pathlist_entry *pe;
3418 TAILQ_FOREACH(pe, ignorelist, entry)
3419 free((char *)pe->path);
3420 got_pathlist_free(ignorelist);
3424 free_ignores(struct got_pathlist_head *ignores)
3426 struct got_pathlist_entry *pe;
3428 TAILQ_FOREACH(pe, ignores, entry) {
3429 struct got_pathlist_head *ignorelist = pe->data;
3430 free_ignorelist(ignorelist);
3431 free((char *)pe->path);
3433 got_pathlist_free(ignores);
3436 static const struct got_error *
3437 read_ignores(struct got_pathlist_head *ignores, const char *path, FILE *f)
3439 const struct got_error *err = NULL;
3440 struct got_pathlist_entry *pe = NULL;
3441 struct got_pathlist_head *ignorelist;
3442 char *line = NULL, *pattern, *dirpath = NULL;
3443 size_t linesize = 0;
3446 ignorelist = calloc(1, sizeof(*ignorelist));
3447 if (ignorelist == NULL)
3448 return got_error_from_errno("calloc");
3449 TAILQ_INIT(ignorelist);
3451 while ((linelen = getline(&line, &linesize, f)) != -1) {
3452 if (linelen > 0 && line[linelen - 1] == '\n')
3453 line[linelen - 1] = '\0';
3455 /* Git's ignores may contain comments. */
3459 /* Git's negated patterns are not (yet?) supported. */
3463 if (asprintf(&pattern, "%s%s%s", path, path[0] ? "/" : "",
3465 err = got_error_from_errno("asprintf");
3468 err = got_pathlist_insert(NULL, ignorelist, pattern, NULL);
3473 err = got_error_from_errno("getline");
3477 dirpath = strdup(path);
3478 if (dirpath == NULL) {
3479 err = got_error_from_errno("strdup");
3482 err = got_pathlist_insert(&pe, ignores, dirpath, ignorelist);
3485 if (err || pe == NULL) {
3487 free_ignorelist(ignorelist);
3493 match_ignores(struct got_pathlist_head *ignores, const char *path)
3495 struct got_pathlist_entry *pe;
3497 /* Handle patterns which match in all directories. */
3498 TAILQ_FOREACH(pe, ignores, entry) {
3499 struct got_pathlist_head *ignorelist = pe->data;
3500 struct got_pathlist_entry *pi;
3502 TAILQ_FOREACH(pi, ignorelist, entry) {
3503 const char *p, *pattern = pi->path;
3505 if (strncmp(pattern, "**/", 3) != 0)
3510 if (fnmatch(pattern, p,
3511 FNM_PATHNAME | FNM_LEADING_DIR)) {
3512 /* Retry in next directory. */
3513 while (*p && *p != '/')
3525 * The ignores pathlist contains ignore lists from children before
3526 * parents, so we can find the most specific ignorelist by walking
3527 * ignores backwards.
3529 pe = TAILQ_LAST(ignores, got_pathlist_head);
3531 if (got_path_is_child(path, pe->path, pe->path_len)) {
3532 struct got_pathlist_head *ignorelist = pe->data;
3533 struct got_pathlist_entry *pi;
3534 TAILQ_FOREACH(pi, ignorelist, entry) {
3535 const char *pattern = pi->path;
3536 int flags = FNM_LEADING_DIR;
3537 if (strstr(pattern, "/**/") == NULL)
3538 flags |= FNM_PATHNAME;
3539 if (fnmatch(pattern, path, flags))
3544 pe = TAILQ_PREV(pe, got_pathlist_head, entry);
3550 static const struct got_error *
3551 add_ignores(struct got_pathlist_head *ignores, const char *root_path,
3552 const char *path, int dirfd, const char *ignores_filename)
3554 const struct got_error *err = NULL;
3557 FILE *ignoresfile = NULL;
3559 if (asprintf(&ignorespath, "%s/%s%s%s", root_path, path,
3560 path[0] ? "/" : "", ignores_filename) == -1)
3561 return got_error_from_errno("asprintf");
3564 fd = openat(dirfd, ignores_filename,
3565 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
3567 if (errno != ENOENT && errno != EACCES)
3568 err = got_error_from_errno2("openat",
3571 ignoresfile = fdopen(fd, "r");
3572 if (ignoresfile == NULL)
3573 err = got_error_from_errno2("fdopen",
3577 err = read_ignores(ignores, path, ignoresfile);
3581 ignoresfile = fopen(ignorespath, "re");
3582 if (ignoresfile == NULL) {
3583 if (errno != ENOENT && errno != EACCES)
3584 err = got_error_from_errno2("fopen",
3587 err = read_ignores(ignores, path, ignoresfile);
3590 if (ignoresfile && fclose(ignoresfile) == EOF && err == NULL)
3591 err = got_error_from_errno2("fclose", path);
3592 if (fd != -1 && close(fd) == -1 && err == NULL)
3593 err = got_error_from_errno2("close", path);
3598 static const struct got_error *
3599 status_new(int *ignore, void *arg, struct dirent *de, const char *parent_path,
3602 const struct got_error *err = NULL;
3603 struct diff_dir_cb_arg *a = arg;
3609 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
3610 return got_error(GOT_ERR_CANCELLED);
3612 if (parent_path[0]) {
3613 if (asprintf(&path, "%s/%s", parent_path, de->d_name) == -1)
3614 return got_error_from_errno("asprintf");
3619 if (de->d_type == DT_DIR) {
3620 if (!a->no_ignores && ignore != NULL &&
3621 match_ignores(a->ignores, path))
3623 } else if (!match_ignores(a->ignores, path) &&
3624 got_path_is_child(path, a->status_path, a->status_path_len))
3625 err = (*a->status_cb)(a->status_arg, GOT_STATUS_UNVERSIONED,
3626 GOT_STATUS_NO_CHANGE, path, NULL, NULL, NULL, -1, NULL);
3632 static const struct got_error *
3633 status_traverse(void *arg, const char *path, int dirfd)
3635 const struct got_error *err = NULL;
3636 struct diff_dir_cb_arg *a = arg;
3641 err = add_ignores(a->ignores, a->worktree->root_path,
3642 path, dirfd, ".cvsignore");
3646 err = add_ignores(a->ignores, a->worktree->root_path, path,
3647 dirfd, ".gitignore");
3652 static const struct got_error *
3653 report_single_file_status(const char *path, const char *ondisk_path,
3654 struct got_fileindex *fileindex, got_worktree_status_cb status_cb,
3655 void *status_arg, struct got_repository *repo, int report_unchanged,
3656 struct got_pathlist_head *ignores, int no_ignores)
3658 struct got_fileindex_entry *ie;
3661 ie = got_fileindex_entry_get(fileindex, path, strlen(path));
3663 return report_file_status(ie, ondisk_path, -1, NULL,
3664 status_cb, status_arg, repo, report_unchanged);
3666 if (lstat(ondisk_path, &sb) == -1) {
3667 if (errno != ENOENT)
3668 return got_error_from_errno2("lstat", ondisk_path);
3669 return (*status_cb)(status_arg, GOT_STATUS_NONEXISTENT,
3670 GOT_STATUS_NO_CHANGE, path, NULL, NULL, NULL, -1, NULL);
3673 if (!no_ignores && match_ignores(ignores, path))
3676 if (S_ISREG(sb.st_mode) || S_ISLNK(sb.st_mode))
3677 return (*status_cb)(status_arg, GOT_STATUS_UNVERSIONED,
3678 GOT_STATUS_NO_CHANGE, path, NULL, NULL, NULL, -1, NULL);
3683 static const struct got_error *
3684 add_ignores_from_parent_paths(struct got_pathlist_head *ignores,
3685 const char *root_path, const char *path)
3687 const struct got_error *err;
3688 char *parent_path, *next_parent_path = NULL;
3690 err = add_ignores(ignores, root_path, "", -1,
3695 err = add_ignores(ignores, root_path, "", -1,
3700 err = got_path_dirname(&parent_path, path);
3702 if (err->code == GOT_ERR_BAD_PATH)
3703 return NULL; /* cannot traverse parent */
3707 err = add_ignores(ignores, root_path, parent_path, -1,
3711 err = add_ignores(ignores, root_path, parent_path, -1,
3715 err = got_path_dirname(&next_parent_path, parent_path);
3717 if (err->code == GOT_ERR_BAD_PATH)
3718 err = NULL; /* traversed everything */
3721 if (got_path_is_root_dir(parent_path))
3724 parent_path = next_parent_path;
3725 next_parent_path = NULL;
3729 free(next_parent_path);
3733 static const struct got_error *
3734 worktree_status(struct got_worktree *worktree, const char *path,
3735 struct got_fileindex *fileindex, struct got_repository *repo,
3736 got_worktree_status_cb status_cb, void *status_arg,
3737 got_cancel_cb cancel_cb, void *cancel_arg, int no_ignores,
3738 int report_unchanged)
3740 const struct got_error *err = NULL;
3742 struct got_fileindex_diff_dir_cb fdiff_cb;
3743 struct diff_dir_cb_arg arg;
3744 char *ondisk_path = NULL;
3745 struct got_pathlist_head ignores;
3746 struct got_fileindex_entry *ie;
3748 TAILQ_INIT(&ignores);
3750 if (asprintf(&ondisk_path, "%s%s%s",
3751 worktree->root_path, path[0] ? "/" : "", path) == -1)
3752 return got_error_from_errno("asprintf");
3754 ie = got_fileindex_entry_get(fileindex, path, strlen(path));
3756 err = report_single_file_status(path, ondisk_path,
3757 fileindex, status_cb, status_arg, repo,
3758 report_unchanged, &ignores, no_ignores);
3762 fd = open(ondisk_path, O_RDONLY | O_NOFOLLOW | O_DIRECTORY | O_CLOEXEC);
3764 if (errno != ENOTDIR && errno != ENOENT && errno != EACCES &&
3765 !got_err_open_nofollow_on_symlink())
3766 err = got_error_from_errno2("open", ondisk_path);
3769 err = add_ignores_from_parent_paths(&ignores,
3770 worktree->root_path, ondisk_path);
3774 err = report_single_file_status(path, ondisk_path,
3775 fileindex, status_cb, status_arg, repo,
3776 report_unchanged, &ignores, no_ignores);
3779 fdiff_cb.diff_old_new = status_old_new;
3780 fdiff_cb.diff_old = status_old;
3781 fdiff_cb.diff_new = status_new;
3782 fdiff_cb.diff_traverse = status_traverse;
3783 arg.fileindex = fileindex;
3784 arg.worktree = worktree;
3785 arg.status_path = path;
3786 arg.status_path_len = strlen(path);
3788 arg.status_cb = status_cb;
3789 arg.status_arg = status_arg;
3790 arg.cancel_cb = cancel_cb;
3791 arg.cancel_arg = cancel_arg;
3792 arg.report_unchanged = report_unchanged;
3793 arg.no_ignores = no_ignores;
3795 err = add_ignores_from_parent_paths(&ignores,
3796 worktree->root_path, path);
3800 arg.ignores = &ignores;
3801 err = got_fileindex_diff_dir(fileindex, fd,
3802 worktree->root_path, path, repo, &fdiff_cb, &arg);
3805 free_ignores(&ignores);
3806 if (fd != -1 && close(fd) == -1 && err == NULL)
3807 err = got_error_from_errno("close");
3812 const struct got_error *
3813 got_worktree_status(struct got_worktree *worktree,
3814 struct got_pathlist_head *paths, struct got_repository *repo,
3815 int no_ignores, got_worktree_status_cb status_cb, void *status_arg,
3816 got_cancel_cb cancel_cb, void *cancel_arg)
3818 const struct got_error *err = NULL;
3819 char *fileindex_path = NULL;
3820 struct got_fileindex *fileindex = NULL;
3821 struct got_pathlist_entry *pe;
3823 err = open_fileindex(&fileindex, &fileindex_path, worktree);
3827 TAILQ_FOREACH(pe, paths, entry) {
3828 err = worktree_status(worktree, pe->path, fileindex, repo,
3829 status_cb, status_arg, cancel_cb, cancel_arg,
3834 free(fileindex_path);
3835 got_fileindex_free(fileindex);
3839 const struct got_error *
3840 got_worktree_resolve_path(char **wt_path, struct got_worktree *worktree,
3843 const struct got_error *err = NULL;
3844 char *resolved = NULL, *cwd = NULL, *path = NULL;
3847 char *abspath = NULL;
3848 char canonpath[PATH_MAX];
3852 cwd = getcwd(NULL, 0);
3854 return got_error_from_errno("getcwd");
3856 if (lstat(arg, &sb) == -1) {
3857 if (errno != ENOENT) {
3858 err = got_error_from_errno2("lstat", arg);
3863 if (S_ISLNK(sb.st_mode)) {
3865 * We cannot use realpath(3) with symlinks since we want to
3866 * operate on the symlink itself.
3867 * But we can make the path absolute, assuming it is relative
3868 * to the current working directory, and then canonicalize it.
3870 if (!got_path_is_absolute(arg)) {
3871 if (asprintf(&abspath, "%s/%s", cwd, arg) == -1) {
3872 err = got_error_from_errno("asprintf");
3877 err = got_canonpath(abspath ? abspath : arg, canonpath,
3881 resolved = strdup(canonpath);
3882 if (resolved == NULL) {
3883 err = got_error_from_errno("strdup");
3887 resolved = realpath(arg, NULL);
3888 if (resolved == NULL) {
3889 if (errno != ENOENT) {
3890 err = got_error_from_errno2("realpath", arg);
3893 if (asprintf(&abspath, "%s/%s", cwd, arg) == -1) {
3894 err = got_error_from_errno("asprintf");
3897 err = got_canonpath(abspath, canonpath,
3901 resolved = strdup(canonpath);
3902 if (resolved == NULL) {
3903 err = got_error_from_errno("strdup");
3909 if (strncmp(got_worktree_get_root_path(worktree), resolved,
3910 strlen(got_worktree_get_root_path(worktree)))) {
3911 err = got_error_path(resolved, GOT_ERR_BAD_PATH);
3915 if (strlen(resolved) > strlen(got_worktree_get_root_path(worktree))) {
3916 err = got_path_skip_common_ancestor(&path,
3917 got_worktree_get_root_path(worktree), resolved);
3923 err = got_error_from_errno("strdup");
3928 /* XXX status walk can't deal with trailing slash! */
3930 while (len > 0 && path[len - 1] == '/') {
3931 path[len - 1] = '\0';
3945 struct schedule_addition_args {
3946 struct got_worktree *worktree;
3947 struct got_fileindex *fileindex;
3948 got_worktree_checkout_cb progress_cb;
3950 struct got_repository *repo;
3953 static const struct got_error *
3954 schedule_addition(void *arg, unsigned char status, unsigned char staged_status,
3955 const char *relpath, struct got_object_id *blob_id,
3956 struct got_object_id *staged_blob_id, struct got_object_id *commit_id,
3957 int dirfd, const char *de_name)
3959 struct schedule_addition_args *a = arg;
3960 const struct got_error *err = NULL;
3961 struct got_fileindex_entry *ie;
3965 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
3967 return got_error_from_errno("asprintf");
3969 ie = got_fileindex_entry_get(a->fileindex, relpath, strlen(relpath));
3971 err = get_file_status(&status, &sb, ie, ondisk_path, dirfd,
3975 /* Re-adding an existing entry is a no-op. */
3976 if (status == GOT_STATUS_ADD)
3978 err = got_error_path(relpath, GOT_ERR_FILE_STATUS);
3983 if (status != GOT_STATUS_UNVERSIONED) {
3984 if (status == GOT_STATUS_NONEXISTENT)
3985 err = got_error_set_errno(ENOENT, ondisk_path);
3987 err = got_error_path(ondisk_path, GOT_ERR_FILE_STATUS);
3991 err = got_fileindex_entry_alloc(&ie, relpath);
3994 err = got_fileindex_entry_update(ie, a->worktree->root_fd,
3995 relpath, NULL, NULL, 1);
3997 got_fileindex_entry_free(ie);
4000 err = got_fileindex_entry_add(a->fileindex, ie);
4002 got_fileindex_entry_free(ie);
4009 if (status == GOT_STATUS_ADD)
4011 return (*a->progress_cb)(a->progress_arg, GOT_STATUS_ADD, relpath);
4014 const struct got_error *
4015 got_worktree_schedule_add(struct got_worktree *worktree,
4016 struct got_pathlist_head *paths,
4017 got_worktree_checkout_cb progress_cb, void *progress_arg,
4018 struct got_repository *repo, int no_ignores)
4020 struct got_fileindex *fileindex = NULL;
4021 char *fileindex_path = NULL;
4022 const struct got_error *err = NULL, *sync_err, *unlockerr;
4023 struct got_pathlist_entry *pe;
4024 struct schedule_addition_args saa;
4026 err = lock_worktree(worktree, LOCK_EX);
4030 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4034 saa.worktree = worktree;
4035 saa.fileindex = fileindex;
4036 saa.progress_cb = progress_cb;
4037 saa.progress_arg = progress_arg;
4040 TAILQ_FOREACH(pe, paths, entry) {
4041 err = worktree_status(worktree, pe->path, fileindex, repo,
4042 schedule_addition, &saa, NULL, NULL, no_ignores, 0);
4046 sync_err = sync_fileindex(fileindex, fileindex_path);
4047 if (sync_err && err == NULL)
4050 free(fileindex_path);
4052 got_fileindex_free(fileindex);
4053 unlockerr = lock_worktree(worktree, LOCK_SH);
4054 if (unlockerr && err == NULL)
4059 struct schedule_deletion_args {
4060 struct got_worktree *worktree;
4061 struct got_fileindex *fileindex;
4062 got_worktree_delete_cb progress_cb;
4064 struct got_repository *repo;
4065 int delete_local_mods;
4067 int ignore_missing_paths;
4068 const char *status_codes;
4071 static const struct got_error *
4072 schedule_for_deletion(void *arg, unsigned char status,
4073 unsigned char staged_status, const char *relpath,
4074 struct got_object_id *blob_id, struct got_object_id *staged_blob_id,
4075 struct got_object_id *commit_id, int dirfd, const char *de_name)
4077 struct schedule_deletion_args *a = arg;
4078 const struct got_error *err = NULL;
4079 struct got_fileindex_entry *ie = NULL;
4083 if (status == GOT_STATUS_NONEXISTENT) {
4084 if (a->ignore_missing_paths)
4086 return got_error_set_errno(ENOENT, relpath);
4089 ie = got_fileindex_entry_get(a->fileindex, relpath, strlen(relpath));
4091 return got_error_path(relpath, GOT_ERR_FILE_STATUS);
4093 staged_status = get_staged_status(ie);
4094 if (staged_status != GOT_STATUS_NO_CHANGE) {
4095 if (staged_status == GOT_STATUS_DELETE)
4097 return got_error_path(relpath, GOT_ERR_FILE_STAGED);
4100 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
4102 return got_error_from_errno("asprintf");
4104 err = get_file_status(&status, &sb, ie, ondisk_path, dirfd, de_name,
4109 if (a->status_codes) {
4110 size_t ncodes = strlen(a->status_codes);
4112 for (i = 0; i < ncodes ; i++) {
4113 if (status == a->status_codes[i])
4117 /* Do not delete files in non-matching status. */
4121 if (a->status_codes[i] != GOT_STATUS_MODIFY &&
4122 a->status_codes[i] != GOT_STATUS_MISSING) {
4123 static char msg[64];
4124 snprintf(msg, sizeof(msg),
4125 "invalid status code '%c'", a->status_codes[i]);
4126 err = got_error_msg(GOT_ERR_FILE_STATUS, msg);
4131 if (status != GOT_STATUS_NO_CHANGE) {
4132 if (status == GOT_STATUS_DELETE)
4134 if (status == GOT_STATUS_MODIFY && !a->delete_local_mods) {
4135 err = got_error_path(relpath, GOT_ERR_FILE_MODIFIED);
4138 if (status == GOT_STATUS_MISSING && !a->ignore_missing_paths) {
4139 err = got_error_set_errno(ENOENT, relpath);
4142 if (status != GOT_STATUS_MODIFY &&
4143 status != GOT_STATUS_MISSING) {
4144 err = got_error_path(relpath, GOT_ERR_FILE_STATUS);
4149 if (!a->keep_on_disk && status != GOT_STATUS_MISSING) {
4153 if (unlinkat(dirfd, de_name, 0) == -1) {
4154 err = got_error_from_errno2("unlinkat",
4158 } else if (unlink(ondisk_path) == -1) {
4159 err = got_error_from_errno2("unlink", ondisk_path);
4163 root_len = strlen(a->worktree->root_path);
4166 err = got_path_dirname(&parent, ondisk_path);
4170 ondisk_path = parent;
4171 if (rmdir(ondisk_path) == -1) {
4172 if (errno != ENOTEMPTY)
4173 err = got_error_from_errno2("rmdir",
4177 } while (got_path_cmp(ondisk_path, a->worktree->root_path,
4178 strlen(ondisk_path), root_len) != 0);
4181 got_fileindex_entry_mark_deleted_from_disk(ie);
4186 if (status == GOT_STATUS_DELETE)
4188 return (*a->progress_cb)(a->progress_arg, GOT_STATUS_DELETE,
4189 staged_status, relpath);
4192 const struct got_error *
4193 got_worktree_schedule_delete(struct got_worktree *worktree,
4194 struct got_pathlist_head *paths, int delete_local_mods,
4195 const char *status_codes,
4196 got_worktree_delete_cb progress_cb, void *progress_arg,
4197 struct got_repository *repo, int keep_on_disk, int ignore_missing_paths)
4199 struct got_fileindex *fileindex = NULL;
4200 char *fileindex_path = NULL;
4201 const struct got_error *err = NULL, *sync_err, *unlockerr;
4202 struct got_pathlist_entry *pe;
4203 struct schedule_deletion_args sda;
4205 err = lock_worktree(worktree, LOCK_EX);
4209 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4213 sda.worktree = worktree;
4214 sda.fileindex = fileindex;
4215 sda.progress_cb = progress_cb;
4216 sda.progress_arg = progress_arg;
4218 sda.delete_local_mods = delete_local_mods;
4219 sda.keep_on_disk = keep_on_disk;
4220 sda.ignore_missing_paths = ignore_missing_paths;
4221 sda.status_codes = status_codes;
4223 TAILQ_FOREACH(pe, paths, entry) {
4224 err = worktree_status(worktree, pe->path, fileindex, repo,
4225 schedule_for_deletion, &sda, NULL, NULL, 1, 1);
4229 sync_err = sync_fileindex(fileindex, fileindex_path);
4230 if (sync_err && err == NULL)
4233 free(fileindex_path);
4235 got_fileindex_free(fileindex);
4236 unlockerr = lock_worktree(worktree, LOCK_SH);
4237 if (unlockerr && err == NULL)
4242 static const struct got_error *
4243 copy_one_line(FILE *infile, FILE *outfile, FILE *rejectfile)
4245 const struct got_error *err = NULL;
4247 size_t linesize = 0, n;
4250 linelen = getline(&line, &linesize, infile);
4251 if (linelen == -1) {
4252 if (ferror(infile)) {
4253 err = got_error_from_errno("getline");
4259 n = fwrite(line, 1, linelen, outfile);
4261 err = got_ferror(outfile, GOT_ERR_IO);
4266 n = fwrite(line, 1, linelen, rejectfile);
4268 err = got_ferror(outfile, GOT_ERR_IO);
4275 static const struct got_error *
4276 skip_one_line(FILE *f)
4279 size_t linesize = 0;
4282 linelen = getline(&line, &linesize, f);
4283 if (linelen == -1) {
4285 return got_error_from_errno("getline");
4292 static const struct got_error *
4293 copy_change(FILE *f1, FILE *f2, int *line_cur1, int *line_cur2,
4294 int start_old, int end_old, int start_new, int end_new,
4295 FILE *outfile, FILE *rejectfile)
4297 const struct got_error *err;
4299 /* Copy old file's lines leading up to patch. */
4300 while (!feof(f1) && *line_cur1 < start_old) {
4301 err = copy_one_line(f1, outfile, NULL);
4306 /* Skip new file's lines leading up to patch. */
4307 while (!feof(f2) && *line_cur2 < start_new) {
4309 err = copy_one_line(f2, NULL, rejectfile);
4311 err = skip_one_line(f2);
4316 /* Copy patched lines. */
4317 while (!feof(f2) && *line_cur2 <= end_new) {
4318 err = copy_one_line(f2, outfile, NULL);
4323 /* Skip over old file's replaced lines. */
4324 while (!feof(f1) && *line_cur1 <= end_old) {
4326 err = copy_one_line(f1, NULL, rejectfile);
4328 err = skip_one_line(f1);
4337 static const struct got_error *
4338 copy_remaining_content(FILE *f1, FILE *f2, int *line_cur1, int *line_cur2,
4339 FILE *outfile, FILE *rejectfile)
4341 const struct got_error *err;
4344 /* Copy old file's lines until EOF. */
4346 err = copy_one_line(f1, outfile, NULL);
4353 /* Copy new file's lines until EOF. */
4355 err = copy_one_line(f2, NULL, rejectfile);
4365 static const struct got_error *
4366 apply_or_reject_change(int *choice, int *nchunks_used,
4367 struct diff_result *diff_result, int n,
4368 const char *relpath, FILE *f1, FILE *f2, int *line_cur1, int *line_cur2,
4369 FILE *outfile, FILE *rejectfile, int changeno, int nchanges,
4370 got_worktree_patch_cb patch_cb, void *patch_arg)
4372 const struct got_error *err = NULL;
4373 struct diff_chunk_context cc = {};
4374 int start_old, end_old, start_new, end_new;
4376 struct diff_output_unidiff_state *diff_state;
4377 struct diff_input_info diff_info;
4380 *choice = GOT_PATCH_CHOICE_NONE;
4382 /* Get changed line numbers without context lines for copy_change(). */
4383 diff_chunk_context_load_change(&cc, NULL, diff_result, n, 0);
4384 start_old = cc.left.start;
4385 end_old = cc.left.end;
4386 start_new = cc.right.start;
4387 end_new = cc.right.end;
4389 /* Get the same change with context lines for display. */
4390 memset(&cc, 0, sizeof(cc));
4391 diff_chunk_context_load_change(&cc, nchunks_used, diff_result, n, 3);
4393 memset(&diff_info, 0, sizeof(diff_info));
4394 diff_info.left_path = relpath;
4395 diff_info.right_path = relpath;
4397 diff_state = diff_output_unidiff_state_alloc();
4398 if (diff_state == NULL)
4399 return got_error_set_errno(ENOMEM,
4400 "diff_output_unidiff_state_alloc");
4402 hunkfile = got_opentemp();
4403 if (hunkfile == NULL) {
4404 err = got_error_from_errno("got_opentemp");
4408 rc = diff_output_unidiff_chunk(NULL, hunkfile, diff_state, &diff_info,
4410 if (rc != DIFF_RC_OK) {
4411 err = got_error_set_errno(rc, "diff_output_unidiff_chunk");
4415 if (fseek(hunkfile, 0L, SEEK_SET) == -1) {
4416 err = got_ferror(hunkfile, GOT_ERR_IO);
4420 err = (*patch_cb)(choice, patch_arg, GOT_STATUS_MODIFY, relpath,
4421 hunkfile, changeno, nchanges);
4426 case GOT_PATCH_CHOICE_YES:
4427 err = copy_change(f1, f2, line_cur1, line_cur2, start_old,
4428 end_old, start_new, end_new, outfile, rejectfile);
4430 case GOT_PATCH_CHOICE_NO:
4431 err = copy_change(f1, f2, line_cur1, line_cur2, start_old,
4432 end_old, start_new, end_new, rejectfile, outfile);
4434 case GOT_PATCH_CHOICE_QUIT:
4437 err = got_error(GOT_ERR_PATCH_CHOICE);
4441 diff_output_unidiff_state_free(diff_state);
4442 if (hunkfile && fclose(hunkfile) == EOF && err == NULL)
4443 err = got_error_from_errno("fclose");
4447 struct revert_file_args {
4448 struct got_worktree *worktree;
4449 struct got_fileindex *fileindex;
4450 got_worktree_checkout_cb progress_cb;
4452 got_worktree_patch_cb patch_cb;
4454 struct got_repository *repo;
4455 int unlink_added_files;
4458 static const struct got_error *
4459 create_patched_content(char **path_outfile, int reverse_patch,
4460 struct got_object_id *blob_id, const char *path2,
4461 int dirfd2, const char *de_name2,
4462 const char *relpath, struct got_repository *repo,
4463 got_worktree_patch_cb patch_cb, void *patch_arg)
4465 const struct got_error *err, *free_err;
4466 struct got_blob_object *blob = NULL;
4467 FILE *f1 = NULL, *f2 = NULL, *outfile = NULL;
4468 int fd = -1, fd2 = -1;
4469 char link_target[PATH_MAX];
4470 ssize_t link_len = 0;
4471 char *path1 = NULL, *id_str = NULL;
4473 struct got_diffreg_result *diffreg_result = NULL;
4474 int line_cur1 = 1, line_cur2 = 1, have_content = 0;
4475 int i = 0, n = 0, nchunks_used = 0, nchanges = 0;
4477 *path_outfile = NULL;
4479 err = got_object_id_str(&id_str, blob_id);
4484 fd2 = openat(dirfd2, de_name2,
4485 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
4487 if (!got_err_open_nofollow_on_symlink()) {
4488 err = got_error_from_errno2("openat", path2);
4491 link_len = readlinkat(dirfd2, de_name2,
4492 link_target, sizeof(link_target));
4493 if (link_len == -1) {
4494 return got_error_from_errno2("readlinkat",
4497 sb2.st_mode = S_IFLNK;
4498 sb2.st_size = link_len;
4501 fd2 = open(path2, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
4503 if (!got_err_open_nofollow_on_symlink()) {
4504 err = got_error_from_errno2("open", path2);
4507 link_len = readlink(path2, link_target,
4508 sizeof(link_target));
4510 return got_error_from_errno2("readlink", path2);
4511 sb2.st_mode = S_IFLNK;
4512 sb2.st_size = link_len;
4516 if (fstat(fd2, &sb2) == -1) {
4517 err = got_error_from_errno2("fstat", path2);
4521 f2 = fdopen(fd2, "r");
4523 err = got_error_from_errno2("fdopen", path2);
4529 f2 = got_opentemp();
4531 err = got_error_from_errno2("got_opentemp", path2);
4534 n = fwrite(link_target, 1, link_len, f2);
4535 if (n != link_len) {
4536 err = got_ferror(f2, GOT_ERR_IO);
4539 if (fflush(f2) == EOF) {
4540 err = got_error_from_errno("fflush");
4546 fd = got_opentempfd();
4548 err = got_error_from_errno("got_opentempfd");
4552 err = got_object_open_as_blob(&blob, repo, blob_id, 8192, fd);
4556 err = got_opentemp_named(&path1, &f1, "got-patched-blob", "");
4560 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f1, blob);
4564 err = got_diff_files(&diffreg_result, f1, 1, id_str, f2, 1, path2,
4565 3, 0, 1, NULL, GOT_DIFF_ALGORITHM_MYERS);
4569 err = got_opentemp_named(path_outfile, &outfile, "got-patched-content",
4574 if (fseek(f1, 0L, SEEK_SET) == -1)
4575 return got_ferror(f1, GOT_ERR_IO);
4576 if (fseek(f2, 0L, SEEK_SET) == -1)
4577 return got_ferror(f2, GOT_ERR_IO);
4579 /* Count the number of actual changes in the diff result. */
4580 for (n = 0; n < diffreg_result->result->chunks.len; n += nchunks_used) {
4581 struct diff_chunk_context cc = {};
4582 diff_chunk_context_load_change(&cc, &nchunks_used,
4583 diffreg_result->result, n, 0);
4586 for (n = 0; n < diffreg_result->result->chunks.len; n += nchunks_used) {
4588 err = apply_or_reject_change(&choice, &nchunks_used,
4589 diffreg_result->result, n, relpath, f1, f2,
4590 &line_cur1, &line_cur2,
4591 reverse_patch ? NULL : outfile,
4592 reverse_patch ? outfile : NULL,
4593 ++i, nchanges, patch_cb, patch_arg);
4596 if (choice == GOT_PATCH_CHOICE_YES)
4598 else if (choice == GOT_PATCH_CHOICE_QUIT)
4602 err = copy_remaining_content(f1, f2, &line_cur1, &line_cur2,
4603 reverse_patch ? NULL : outfile,
4604 reverse_patch ? outfile : NULL);
4608 if (!S_ISLNK(sb2.st_mode)) {
4611 mode = apply_umask(sb2.st_mode);
4612 if (fchmod(fileno(outfile), mode) == -1) {
4613 err = got_error_from_errno2("fchmod", path2);
4620 if (fd != -1 && close(fd) == -1 && err == NULL)
4621 err = got_error_from_errno("close");
4623 got_object_blob_close(blob);
4624 free_err = got_diffreg_result_free(diffreg_result);
4627 if (f1 && fclose(f1) == EOF && err == NULL)
4628 err = got_error_from_errno2("fclose", path1);
4629 if (f2 && fclose(f2) == EOF && err == NULL)
4630 err = got_error_from_errno2("fclose", path2);
4631 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
4632 err = got_error_from_errno2("close", path2);
4633 if (outfile && fclose(outfile) == EOF && err == NULL)
4634 err = got_error_from_errno2("fclose", *path_outfile);
4635 if (path1 && unlink(path1) == -1 && err == NULL)
4636 err = got_error_from_errno2("unlink", path1);
4637 if (err || !have_content) {
4638 if (*path_outfile && unlink(*path_outfile) == -1 && err == NULL)
4639 err = got_error_from_errno2("unlink", *path_outfile);
4640 free(*path_outfile);
4641 *path_outfile = NULL;
4647 static const struct got_error *
4648 revert_file(void *arg, unsigned char status, unsigned char staged_status,
4649 const char *relpath, struct got_object_id *blob_id,
4650 struct got_object_id *staged_blob_id, struct got_object_id *commit_id,
4651 int dirfd, const char *de_name)
4653 struct revert_file_args *a = arg;
4654 const struct got_error *err = NULL;
4655 char *parent_path = NULL;
4656 struct got_fileindex_entry *ie;
4657 struct got_commit_object *base_commit = NULL;
4658 struct got_tree_object *tree = NULL;
4659 struct got_object_id *tree_id = NULL;
4660 const struct got_tree_entry *te = NULL;
4661 char *tree_path = NULL, *te_name;
4662 char *ondisk_path = NULL, *path_content = NULL;
4663 struct got_blob_object *blob = NULL;
4666 /* Reverting a staged deletion is a no-op. */
4667 if (status == GOT_STATUS_DELETE &&
4668 staged_status != GOT_STATUS_NO_CHANGE)
4671 if (status == GOT_STATUS_UNVERSIONED)
4672 return (*a->progress_cb)(a->progress_arg,
4673 GOT_STATUS_UNVERSIONED, relpath);
4675 ie = got_fileindex_entry_get(a->fileindex, relpath, strlen(relpath));
4677 return got_error_path(relpath, GOT_ERR_BAD_PATH);
4679 /* Construct in-repository path of tree which contains this blob. */
4680 err = got_path_dirname(&parent_path, ie->path);
4682 if (err->code != GOT_ERR_BAD_PATH)
4684 parent_path = strdup("/");
4685 if (parent_path == NULL) {
4686 err = got_error_from_errno("strdup");
4690 if (got_path_is_root_dir(a->worktree->path_prefix)) {
4691 tree_path = strdup(parent_path);
4692 if (tree_path == NULL) {
4693 err = got_error_from_errno("strdup");
4697 if (got_path_is_root_dir(parent_path)) {
4698 tree_path = strdup(a->worktree->path_prefix);
4699 if (tree_path == NULL) {
4700 err = got_error_from_errno("strdup");
4704 if (asprintf(&tree_path, "%s/%s",
4705 a->worktree->path_prefix, parent_path) == -1) {
4706 err = got_error_from_errno("asprintf");
4712 err = got_object_open_as_commit(&base_commit, a->repo,
4713 a->worktree->base_commit_id);
4717 err = got_object_id_by_path(&tree_id, a->repo, base_commit, tree_path);
4719 if (!(err->code == GOT_ERR_NO_TREE_ENTRY &&
4720 (status == GOT_STATUS_ADD ||
4721 staged_status == GOT_STATUS_ADD)))
4724 err = got_object_open_as_tree(&tree, a->repo, tree_id);
4728 err = got_path_basename(&te_name, ie->path);
4732 te = got_object_tree_find_entry(tree, te_name);
4734 if (te == NULL && status != GOT_STATUS_ADD &&
4735 staged_status != GOT_STATUS_ADD) {
4736 err = got_error_path(ie->path, GOT_ERR_NO_TREE_ENTRY);
4742 case GOT_STATUS_ADD:
4744 int choice = GOT_PATCH_CHOICE_NONE;
4745 err = (*a->patch_cb)(&choice, a->patch_arg,
4746 status, ie->path, NULL, 1, 1);
4749 if (choice != GOT_PATCH_CHOICE_YES)
4752 err = (*a->progress_cb)(a->progress_arg, GOT_STATUS_REVERT,
4756 got_fileindex_entry_remove(a->fileindex, ie);
4757 if (a->unlink_added_files) {
4758 if (asprintf(&ondisk_path, "%s/%s",
4759 got_worktree_get_root_path(a->worktree),
4761 err = got_error_from_errno("asprintf");
4764 if (unlink(ondisk_path) == -1) {
4765 err = got_error_from_errno2("unlink",
4771 case GOT_STATUS_DELETE:
4773 int choice = GOT_PATCH_CHOICE_NONE;
4774 err = (*a->patch_cb)(&choice, a->patch_arg,
4775 status, ie->path, NULL, 1, 1);
4778 if (choice != GOT_PATCH_CHOICE_YES)
4782 case GOT_STATUS_MODIFY:
4783 case GOT_STATUS_MODE_CHANGE:
4784 case GOT_STATUS_CONFLICT:
4785 case GOT_STATUS_MISSING: {
4786 struct got_object_id id;
4787 if (staged_status == GOT_STATUS_ADD ||
4788 staged_status == GOT_STATUS_MODIFY) {
4789 memcpy(id.sha1, ie->staged_blob_sha1,
4790 SHA1_DIGEST_LENGTH);
4792 memcpy(id.sha1, ie->blob_sha1,
4793 SHA1_DIGEST_LENGTH);
4794 fd = got_opentempfd();
4796 err = got_error_from_errno("got_opentempfd");
4800 err = got_object_open_as_blob(&blob, a->repo, &id, 8192, fd);
4804 if (asprintf(&ondisk_path, "%s/%s",
4805 got_worktree_get_root_path(a->worktree), relpath) == -1) {
4806 err = got_error_from_errno("asprintf");
4810 if (a->patch_cb && (status == GOT_STATUS_MODIFY ||
4811 status == GOT_STATUS_CONFLICT)) {
4812 int is_bad_symlink = 0;
4813 err = create_patched_content(&path_content, 1, &id,
4814 ondisk_path, dirfd, de_name, ie->path, a->repo,
4815 a->patch_cb, a->patch_arg);
4816 if (err || path_content == NULL)
4818 if (te && S_ISLNK(te->mode)) {
4819 if (unlink(path_content) == -1) {
4820 err = got_error_from_errno2("unlink",
4824 err = install_symlink(&is_bad_symlink,
4825 a->worktree, ondisk_path, ie->path,
4826 blob, 0, 1, 0, 0, a->repo,
4827 a->progress_cb, a->progress_arg);
4829 if (rename(path_content, ondisk_path) == -1) {
4830 err = got_error_from_errno3("rename",
4831 path_content, ondisk_path);
4836 int is_bad_symlink = 0;
4837 if (te && S_ISLNK(te->mode)) {
4838 err = install_symlink(&is_bad_symlink,
4839 a->worktree, ondisk_path, ie->path,
4840 blob, 0, 1, 0, 0, a->repo,
4841 a->progress_cb, a->progress_arg);
4843 err = install_blob(a->worktree, ondisk_path,
4845 te ? te->mode : GOT_DEFAULT_FILE_MODE,
4846 got_fileindex_perms_to_st(ie), blob,
4847 0, 1, 0, 0, a->repo,
4848 a->progress_cb, a->progress_arg);
4852 if (status == GOT_STATUS_DELETE ||
4853 status == GOT_STATUS_MODE_CHANGE) {
4854 err = got_fileindex_entry_update(ie,
4855 a->worktree->root_fd, relpath,
4857 a->worktree->base_commit_id->sha1, 1);
4861 if (is_bad_symlink) {
4862 got_fileindex_entry_filetype_set(ie,
4863 GOT_FILEIDX_MODE_BAD_SYMLINK);
4876 if (fd != -1 && close(fd) == -1 && err == NULL)
4877 err = got_error_from_errno("close");
4879 got_object_blob_close(blob);
4881 got_object_tree_close(tree);
4884 got_object_commit_close(base_commit);
4888 const struct got_error *
4889 got_worktree_revert(struct got_worktree *worktree,
4890 struct got_pathlist_head *paths,
4891 got_worktree_checkout_cb progress_cb, void *progress_arg,
4892 got_worktree_patch_cb patch_cb, void *patch_arg,
4893 struct got_repository *repo)
4895 struct got_fileindex *fileindex = NULL;
4896 char *fileindex_path = NULL;
4897 const struct got_error *err = NULL, *unlockerr = NULL;
4898 const struct got_error *sync_err = NULL;
4899 struct got_pathlist_entry *pe;
4900 struct revert_file_args rfa;
4902 err = lock_worktree(worktree, LOCK_EX);
4906 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4910 rfa.worktree = worktree;
4911 rfa.fileindex = fileindex;
4912 rfa.progress_cb = progress_cb;
4913 rfa.progress_arg = progress_arg;
4914 rfa.patch_cb = patch_cb;
4915 rfa.patch_arg = patch_arg;
4917 rfa.unlink_added_files = 0;
4918 TAILQ_FOREACH(pe, paths, entry) {
4919 err = worktree_status(worktree, pe->path, fileindex, repo,
4920 revert_file, &rfa, NULL, NULL, 1, 0);
4924 sync_err = sync_fileindex(fileindex, fileindex_path);
4925 if (sync_err && err == NULL)
4928 free(fileindex_path);
4930 got_fileindex_free(fileindex);
4931 unlockerr = lock_worktree(worktree, LOCK_SH);
4932 if (unlockerr && err == NULL)
4938 free_commitable(struct got_commitable *ct)
4941 free(ct->in_repo_path);
4942 free(ct->ondisk_path);
4944 free(ct->base_blob_id);
4945 free(ct->staged_blob_id);
4946 free(ct->base_commit_id);
4950 struct collect_commitables_arg {
4951 struct got_pathlist_head *commitable_paths;
4952 struct got_repository *repo;
4953 struct got_worktree *worktree;
4954 struct got_fileindex *fileindex;
4955 int have_staged_files;
4956 int allow_bad_symlinks;
4957 int diff_header_shown;
4964 * Create a file which contains the target path of a symlink so we can feed
4965 * it as content to the diff engine.
4967 static const struct got_error *
4968 get_symlink_target_file(int *fd, int dirfd, const char *de_name,
4969 const char *abspath)
4971 const struct got_error *err = NULL;
4972 char target_path[PATH_MAX];
4973 ssize_t target_len, outlen;
4978 target_len = readlinkat(dirfd, de_name, target_path, PATH_MAX);
4979 if (target_len == -1)
4980 return got_error_from_errno2("readlinkat", abspath);
4982 target_len = readlink(abspath, target_path, PATH_MAX);
4983 if (target_len == -1)
4984 return got_error_from_errno2("readlink", abspath);
4987 *fd = got_opentempfd();
4989 return got_error_from_errno("got_opentempfd");
4991 outlen = write(*fd, target_path, target_len);
4993 err = got_error_from_errno("got_opentempfd");
4997 if (lseek(*fd, 0, SEEK_SET) == -1) {
4998 err = got_error_from_errno2("lseek", abspath);
5009 static const struct got_error *
5010 append_ct_diff(struct got_commitable *ct, int *diff_header_shown,
5011 FILE *diff_outfile, FILE *f1, FILE *f2, int dirfd, const char *de_name,
5012 int diff_staged, struct got_repository *repo, struct got_worktree *worktree)
5014 const struct got_error *err = NULL;
5015 struct got_blob_object *blob1 = NULL;
5016 int fd = -1, fd1 = -1, fd2 = -1;
5017 FILE *ondisk_file = NULL;
5018 char *label1 = NULL;
5022 char *id_str = NULL;
5024 memset(&sb, 0, sizeof(sb));
5026 err = got_opentemp_truncate(f1);
5028 return got_error_from_errno("got_opentemp_truncate");
5029 err = got_opentemp_truncate(f2);
5031 return got_error_from_errno("got_opentemp_truncate");
5033 if (!*diff_header_shown) {
5034 err = got_object_id_str(&id_str, worktree->base_commit_id);
5037 fprintf(diff_outfile, "diff %s%s\n", diff_staged ? "-s " : "",
5038 got_worktree_get_root_path(worktree));
5039 fprintf(diff_outfile, "commit - %s\n", id_str);
5040 fprintf(diff_outfile, "path + %s%s\n",
5041 got_worktree_get_root_path(worktree),
5042 diff_staged ? " (staged changes)" : "");
5043 *diff_header_shown = 1;
5047 const char *label1 = NULL, *label2 = NULL;
5048 switch (ct->staged_status) {
5049 case GOT_STATUS_MODIFY:
5053 case GOT_STATUS_ADD:
5056 case GOT_STATUS_DELETE:
5060 return got_error(GOT_ERR_FILE_STATUS);
5062 fd1 = got_opentempfd();
5064 err = got_error_from_errno("got_opentempfd");
5067 fd2 = got_opentempfd();
5069 err = got_error_from_errno("got_opentempfd");
5072 err = got_diff_objects_as_blobs(NULL, NULL, f1, f2,
5073 fd1, fd2, ct->base_blob_id, ct->staged_blob_id,
5074 label1, label2, GOT_DIFF_ALGORITHM_PATIENCE, 3, 0, 0,
5075 repo, diff_outfile);
5079 fd1 = got_opentempfd();
5081 err = got_error_from_errno("got_opentempfd");
5085 if (ct->status != GOT_STATUS_ADD) {
5086 err = got_object_open_as_blob(&blob1, repo, ct->base_blob_id,
5092 if (ct->status != GOT_STATUS_DELETE) {
5094 fd = openat(dirfd, de_name,
5095 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
5097 if (!got_err_open_nofollow_on_symlink()) {
5098 err = got_error_from_errno2("openat",
5102 err = get_symlink_target_file(&fd, dirfd,
5103 de_name, ct->ondisk_path);
5108 fd = open(ct->ondisk_path,
5109 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
5111 if (!got_err_open_nofollow_on_symlink()) {
5112 err = got_error_from_errno2("open",
5116 err = get_symlink_target_file(&fd, dirfd,
5117 de_name, ct->ondisk_path);
5122 if (fstatat(fd, ct->ondisk_path, &sb,
5123 AT_SYMLINK_NOFOLLOW) == -1) {
5124 err = got_error_from_errno2("fstatat", ct->ondisk_path);
5127 ondisk_file = fdopen(fd, "r");
5128 if (ondisk_file == NULL) {
5129 err = got_error_from_errno2("fdopen", ct->ondisk_path);
5137 err = got_object_blob_dump_to_file(&size1, NULL, NULL,
5143 err = got_diff_blob_file(blob1, f1, size1, label1,
5144 ondisk_file ? ondisk_file : f2, f2_exists, &sb, ct->path,
5145 GOT_DIFF_ALGORITHM_PATIENCE, 3, 0, 0, diff_outfile);
5147 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
5148 err = got_error_from_errno("close");
5149 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
5150 err = got_error_from_errno("close");
5152 got_object_blob_close(blob1);
5153 if (fd != -1 && close(fd) == -1 && err == NULL)
5154 err = got_error_from_errno("close");
5155 if (ondisk_file && fclose(ondisk_file) == EOF && err == NULL)
5156 err = got_error_from_errno("fclose");
5160 static const struct got_error *
5161 collect_commitables(void *arg, unsigned char status,
5162 unsigned char staged_status, const char *relpath,
5163 struct got_object_id *blob_id, struct got_object_id *staged_blob_id,
5164 struct got_object_id *commit_id, int dirfd, const char *de_name)
5166 struct collect_commitables_arg *a = arg;
5167 const struct got_error *err = NULL;
5168 struct got_commitable *ct = NULL;
5169 struct got_pathlist_entry *new = NULL;
5170 char *parent_path = NULL, *path = NULL;
5173 if (a->have_staged_files) {
5174 if (staged_status != GOT_STATUS_MODIFY &&
5175 staged_status != GOT_STATUS_ADD &&
5176 staged_status != GOT_STATUS_DELETE)
5179 if (status == GOT_STATUS_CONFLICT)
5180 return got_error(GOT_ERR_COMMIT_CONFLICT);
5182 if (status != GOT_STATUS_MODIFY &&
5183 status != GOT_STATUS_MODE_CHANGE &&
5184 status != GOT_STATUS_ADD &&
5185 status != GOT_STATUS_DELETE)
5189 if (asprintf(&path, "/%s", relpath) == -1) {
5190 err = got_error_from_errno("asprintf");
5193 if (strcmp(path, "/") == 0) {
5194 parent_path = strdup("");
5195 if (parent_path == NULL)
5196 return got_error_from_errno("strdup");
5198 err = got_path_dirname(&parent_path, path);
5203 ct = calloc(1, sizeof(*ct));
5205 err = got_error_from_errno("calloc");
5209 if (asprintf(&ct->ondisk_path, "%s/%s", a->worktree->root_path,
5211 err = got_error_from_errno("asprintf");
5215 if (staged_status == GOT_STATUS_ADD ||
5216 staged_status == GOT_STATUS_MODIFY) {
5217 struct got_fileindex_entry *ie;
5218 ie = got_fileindex_entry_get(a->fileindex, path, strlen(path));
5219 switch (got_fileindex_entry_staged_filetype_get(ie)) {
5220 case GOT_FILEIDX_MODE_REGULAR_FILE:
5221 case GOT_FILEIDX_MODE_BAD_SYMLINK:
5224 case GOT_FILEIDX_MODE_SYMLINK:
5228 err = got_error_path(path, GOT_ERR_BAD_FILETYPE);
5231 ct->mode |= got_fileindex_entry_perms_get(ie);
5232 } else if (status != GOT_STATUS_DELETE &&
5233 staged_status != GOT_STATUS_DELETE) {
5235 if (fstatat(dirfd, de_name, &sb,
5236 AT_SYMLINK_NOFOLLOW) == -1) {
5237 err = got_error_from_errno2("fstatat",
5241 } else if (lstat(ct->ondisk_path, &sb) == -1) {
5242 err = got_error_from_errno2("lstat", ct->ondisk_path);
5245 ct->mode = sb.st_mode;
5248 if (asprintf(&ct->in_repo_path, "%s%s%s", a->worktree->path_prefix,
5249 got_path_is_root_dir(a->worktree->path_prefix) ? "" : "/",
5251 err = got_error_from_errno("asprintf");
5255 if (S_ISLNK(ct->mode) && staged_status == GOT_STATUS_NO_CHANGE &&
5256 status == GOT_STATUS_ADD && !a->allow_bad_symlinks) {
5258 char target_path[PATH_MAX];
5260 target_len = readlink(ct->ondisk_path, target_path,
5261 sizeof(target_path));
5262 if (target_len == -1) {
5263 err = got_error_from_errno2("readlink",
5267 err = is_bad_symlink_target(&is_bad_symlink, target_path,
5268 target_len, ct->ondisk_path, a->worktree->root_path);
5271 if (is_bad_symlink) {
5272 err = got_error_path(ct->ondisk_path,
5273 GOT_ERR_BAD_SYMLINK);
5279 ct->status = status;
5280 ct->staged_status = staged_status;
5281 ct->blob_id = NULL; /* will be filled in when blob gets created */
5282 if (ct->status != GOT_STATUS_ADD &&
5283 ct->staged_status != GOT_STATUS_ADD) {
5284 ct->base_blob_id = got_object_id_dup(blob_id);
5285 if (ct->base_blob_id == NULL) {
5286 err = got_error_from_errno("got_object_id_dup");
5289 ct->base_commit_id = got_object_id_dup(commit_id);
5290 if (ct->base_commit_id == NULL) {
5291 err = got_error_from_errno("got_object_id_dup");
5295 if (ct->staged_status == GOT_STATUS_ADD ||
5296 ct->staged_status == GOT_STATUS_MODIFY) {
5297 ct->staged_blob_id = got_object_id_dup(staged_blob_id);
5298 if (ct->staged_blob_id == NULL) {
5299 err = got_error_from_errno("got_object_id_dup");
5303 ct->path = strdup(path);
5304 if (ct->path == NULL) {
5305 err = got_error_from_errno("strdup");
5308 err = got_pathlist_insert(&new, a->commitable_paths, ct->path, ct);
5312 if (a->diff_outfile && ct && new != NULL) {
5313 err = append_ct_diff(ct, &a->diff_header_shown,
5314 a->diff_outfile, a->f1, a->f2, dirfd, de_name,
5315 a->have_staged_files, a->repo, a->worktree);
5320 if (ct && (err || new == NULL))
5321 free_commitable(ct);
5327 static const struct got_error *write_tree(struct got_object_id **, int *,
5328 struct got_tree_object *, const char *, struct got_pathlist_head *,
5329 got_worktree_status_cb status_cb, void *status_arg,
5330 struct got_repository *);
5332 static const struct got_error *
5333 write_subtree(struct got_object_id **new_subtree_id, int *nentries,
5334 struct got_tree_entry *te, const char *parent_path,
5335 struct got_pathlist_head *commitable_paths,
5336 got_worktree_status_cb status_cb, void *status_arg,
5337 struct got_repository *repo)
5339 const struct got_error *err = NULL;
5340 struct got_tree_object *subtree;
5343 if (asprintf(&subpath, "%s%s%s", parent_path,
5344 got_path_is_root_dir(parent_path) ? "" : "/", te->name) == -1)
5345 return got_error_from_errno("asprintf");
5347 err = got_object_open_as_tree(&subtree, repo, &te->id);
5351 err = write_tree(new_subtree_id, nentries, subtree, subpath,
5352 commitable_paths, status_cb, status_arg, repo);
5353 got_object_tree_close(subtree);
5358 static const struct got_error *
5359 match_ct_parent_path(int *match, struct got_commitable *ct, const char *path)
5361 const struct got_error *err = NULL;
5362 char *ct_parent_path = NULL;
5366 if (strchr(ct->in_repo_path, '/') == NULL) {
5367 *match = got_path_is_root_dir(path);
5371 err = got_path_dirname(&ct_parent_path, ct->in_repo_path);
5374 *match = (strcmp(path, ct_parent_path) == 0);
5375 free(ct_parent_path);
5380 get_ct_file_mode(struct got_commitable *ct)
5382 if (S_ISLNK(ct->mode))
5385 return S_IFREG | (ct->mode & ((S_IRWXU | S_IRWXG | S_IRWXO)));
5388 static const struct got_error *
5389 alloc_modified_blob_tree_entry(struct got_tree_entry **new_te,
5390 struct got_tree_entry *te, struct got_commitable *ct)
5392 const struct got_error *err = NULL;
5396 err = got_object_tree_entry_dup(new_te, te);
5400 (*new_te)->mode = get_ct_file_mode(ct);
5402 if (ct->staged_status == GOT_STATUS_MODIFY)
5403 memcpy(&(*new_te)->id, ct->staged_blob_id,
5404 sizeof((*new_te)->id));
5406 memcpy(&(*new_te)->id, ct->blob_id, sizeof((*new_te)->id));
5408 if (err && *new_te) {
5415 static const struct got_error *
5416 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
5417 struct got_commitable *ct)
5419 const struct got_error *err = NULL;
5420 char *ct_name = NULL;
5424 *new_te = calloc(1, sizeof(**new_te));
5425 if (*new_te == NULL)
5426 return got_error_from_errno("calloc");
5428 err = got_path_basename(&ct_name, ct->path);
5431 if (strlcpy((*new_te)->name, ct_name, sizeof((*new_te)->name)) >=
5432 sizeof((*new_te)->name)) {
5433 err = got_error(GOT_ERR_NO_SPACE);
5437 (*new_te)->mode = get_ct_file_mode(ct);
5439 if (ct->staged_status == GOT_STATUS_ADD)
5440 memcpy(&(*new_te)->id, ct->staged_blob_id,
5441 sizeof((*new_te)->id));
5443 memcpy(&(*new_te)->id, ct->blob_id, sizeof((*new_te)->id));
5446 if (err && *new_te) {
5453 static const struct got_error *
5454 insert_tree_entry(struct got_tree_entry *new_te,
5455 struct got_pathlist_head *paths)
5457 const struct got_error *err = NULL;
5458 struct got_pathlist_entry *new_pe;
5460 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
5464 return got_error(GOT_ERR_TREE_DUP_ENTRY);
5468 static const struct got_error *
5469 report_ct_status(struct got_commitable *ct,
5470 got_worktree_status_cb status_cb, void *status_arg)
5472 const char *ct_path = ct->path;
5473 unsigned char status;
5475 if (status_cb == NULL) /* no commit progress output desired */
5478 while (ct_path[0] == '/')
5481 if (ct->staged_status != GOT_STATUS_NO_CHANGE)
5482 status = ct->staged_status;
5484 status = ct->status;
5486 return (*status_cb)(status_arg, status, GOT_STATUS_NO_CHANGE,
5487 ct_path, ct->blob_id, NULL, NULL, -1, NULL);
5490 static const struct got_error *
5491 match_modified_subtree(int *modified, struct got_tree_entry *te,
5492 const char *base_tree_path, struct got_pathlist_head *commitable_paths)
5494 const struct got_error *err = NULL;
5495 struct got_pathlist_entry *pe;
5500 if (asprintf(&te_path, "%s%s%s", base_tree_path,
5501 got_path_is_root_dir(base_tree_path) ? "" : "/",
5503 return got_error_from_errno("asprintf");
5505 TAILQ_FOREACH(pe, commitable_paths, entry) {
5506 struct got_commitable *ct = pe->data;
5507 *modified = got_path_is_child(ct->in_repo_path, te_path,
5517 static const struct got_error *
5518 match_deleted_or_modified_ct(struct got_commitable **ctp,
5519 struct got_tree_entry *te, const char *base_tree_path,
5520 struct got_pathlist_head *commitable_paths)
5522 const struct got_error *err = NULL;
5523 struct got_pathlist_entry *pe;
5527 TAILQ_FOREACH(pe, commitable_paths, entry) {
5528 struct got_commitable *ct = pe->data;
5529 char *ct_name = NULL;
5532 if (ct->staged_status == GOT_STATUS_NO_CHANGE) {
5533 if (ct->status != GOT_STATUS_MODIFY &&
5534 ct->status != GOT_STATUS_MODE_CHANGE &&
5535 ct->status != GOT_STATUS_DELETE)
5538 if (ct->staged_status != GOT_STATUS_MODIFY &&
5539 ct->staged_status != GOT_STATUS_DELETE)
5543 if (got_object_id_cmp(ct->base_blob_id, &te->id) != 0)
5546 err = match_ct_parent_path(&path_matches, ct, base_tree_path);
5552 err = got_path_basename(&ct_name, pe->path);
5556 if (strcmp(te->name, ct_name) != 0) {
5569 static const struct got_error *
5570 make_subtree_for_added_blob(struct got_tree_entry **new_tep,
5571 const char *child_path, const char *path_base_tree,
5572 struct got_pathlist_head *commitable_paths,
5573 got_worktree_status_cb status_cb, void *status_arg,
5574 struct got_repository *repo)
5576 const struct got_error *err = NULL;
5577 struct got_tree_entry *new_te;
5579 struct got_object_id *id = NULL;
5584 if (asprintf(&subtree_path, "%s%s%s", path_base_tree,
5585 got_path_is_root_dir(path_base_tree) ? "" : "/",
5587 return got_error_from_errno("asprintf");
5589 new_te = calloc(1, sizeof(*new_te));
5591 return got_error_from_errno("calloc");
5592 new_te->mode = S_IFDIR;
5594 if (strlcpy(new_te->name, child_path, sizeof(new_te->name)) >=
5595 sizeof(new_te->name)) {
5596 err = got_error(GOT_ERR_NO_SPACE);
5599 err = write_tree(&id, &nentries, NULL, subtree_path,
5600 commitable_paths, status_cb, status_arg, repo);
5605 memcpy(&new_te->id, id, sizeof(new_te->id));
5614 static const struct got_error *
5615 write_tree(struct got_object_id **new_tree_id, int *nentries,
5616 struct got_tree_object *base_tree, const char *path_base_tree,
5617 struct got_pathlist_head *commitable_paths,
5618 got_worktree_status_cb status_cb, void *status_arg,
5619 struct got_repository *repo)
5621 const struct got_error *err = NULL;
5622 struct got_pathlist_head paths;
5623 struct got_tree_entry *te, *new_te = NULL;
5624 struct got_pathlist_entry *pe;
5629 /* Insert, and recurse into, newly added entries first. */
5630 TAILQ_FOREACH(pe, commitable_paths, entry) {
5631 struct got_commitable *ct = pe->data;
5632 char *child_path = NULL, *slash;
5634 if ((ct->status != GOT_STATUS_ADD &&
5635 ct->staged_status != GOT_STATUS_ADD) ||
5636 (ct->flags & GOT_COMMITABLE_ADDED))
5639 if (!got_path_is_child(ct->in_repo_path, path_base_tree,
5640 strlen(path_base_tree)))
5643 err = got_path_skip_common_ancestor(&child_path, path_base_tree,
5648 slash = strchr(child_path, '/');
5649 if (slash == NULL) {
5650 err = alloc_added_blob_tree_entry(&new_te, ct);
5653 err = report_ct_status(ct, status_cb, status_arg);
5656 ct->flags |= GOT_COMMITABLE_ADDED;
5657 err = insert_tree_entry(new_te, &paths);
5662 *slash = '\0'; /* trim trailing path components */
5663 if (base_tree == NULL ||
5664 got_object_tree_find_entry(base_tree, child_path)
5666 err = make_subtree_for_added_blob(&new_te,
5667 child_path, path_base_tree,
5668 commitable_paths, status_cb, status_arg,
5672 err = insert_tree_entry(new_te, &paths);
5681 int i, nbase_entries;
5682 /* Handle modified and deleted entries. */
5683 nbase_entries = got_object_tree_get_nentries(base_tree);
5684 for (i = 0; i < nbase_entries; i++) {
5685 struct got_commitable *ct = NULL;
5687 te = got_object_tree_get_entry(base_tree, i);
5688 if (got_object_tree_entry_is_submodule(te)) {
5689 /* Entry is a submodule; just copy it. */
5690 err = got_object_tree_entry_dup(&new_te, te);
5693 err = insert_tree_entry(new_te, &paths);
5700 if (S_ISDIR(te->mode)) {
5702 err = got_object_tree_entry_dup(&new_te, te);
5705 err = match_modified_subtree(&modified, te,
5706 path_base_tree, commitable_paths);
5709 /* Avoid recursion into unmodified subtrees. */
5711 struct got_object_id *new_id;
5713 err = write_subtree(&new_id,
5715 path_base_tree, commitable_paths,
5716 status_cb, status_arg, repo);
5719 if (nsubentries == 0) {
5720 /* All entries were deleted. */
5724 memcpy(&new_te->id, new_id,
5725 sizeof(new_te->id));
5728 err = insert_tree_entry(new_te, &paths);
5735 err = match_deleted_or_modified_ct(&ct, te,
5736 path_base_tree, commitable_paths);
5740 /* NB: Deleted entries get dropped here. */
5741 if (ct->status == GOT_STATUS_MODIFY ||
5742 ct->status == GOT_STATUS_MODE_CHANGE ||
5743 ct->staged_status == GOT_STATUS_MODIFY) {
5744 err = alloc_modified_blob_tree_entry(
5748 err = insert_tree_entry(new_te, &paths);
5753 err = report_ct_status(ct, status_cb,
5758 /* Entry is unchanged; just copy it. */
5759 err = got_object_tree_entry_dup(&new_te, te);
5762 err = insert_tree_entry(new_te, &paths);
5770 /* Write new list of entries; deleted entries have been dropped. */
5771 err = got_object_tree_create(new_tree_id, &paths, *nentries, repo);
5773 got_pathlist_free(&paths);
5777 static const struct got_error *
5778 update_fileindex_after_commit(struct got_worktree *worktree,
5779 struct got_pathlist_head *commitable_paths,
5780 struct got_object_id *new_base_commit_id,
5781 struct got_fileindex *fileindex, int have_staged_files)
5783 const struct got_error *err = NULL;
5784 struct got_pathlist_entry *pe;
5785 char *relpath = NULL;
5787 TAILQ_FOREACH(pe, commitable_paths, entry) {
5788 struct got_fileindex_entry *ie;
5789 struct got_commitable *ct = pe->data;
5791 ie = got_fileindex_entry_get(fileindex, pe->path, pe->path_len);
5793 err = got_path_skip_common_ancestor(&relpath,
5794 worktree->root_path, ct->ondisk_path);
5799 if (ct->status == GOT_STATUS_DELETE ||
5800 ct->staged_status == GOT_STATUS_DELETE) {
5801 got_fileindex_entry_remove(fileindex, ie);
5802 } else if (ct->staged_status == GOT_STATUS_ADD ||
5803 ct->staged_status == GOT_STATUS_MODIFY) {
5804 got_fileindex_entry_stage_set(ie,
5805 GOT_FILEIDX_STAGE_NONE);
5806 got_fileindex_entry_staged_filetype_set(ie, 0);
5808 err = got_fileindex_entry_update(ie,
5809 worktree->root_fd, relpath,
5810 ct->staged_blob_id->sha1,
5811 new_base_commit_id->sha1,
5812 !have_staged_files);
5814 err = got_fileindex_entry_update(ie,
5815 worktree->root_fd, relpath,
5817 new_base_commit_id->sha1,
5818 !have_staged_files);
5820 err = got_fileindex_entry_alloc(&ie, pe->path);
5823 err = got_fileindex_entry_update(ie,
5824 worktree->root_fd, relpath, ct->blob_id->sha1,
5825 new_base_commit_id->sha1, 1);
5827 got_fileindex_entry_free(ie);
5830 err = got_fileindex_entry_add(fileindex, ie);
5832 got_fileindex_entry_free(ie);
5845 static const struct got_error *
5846 check_out_of_date(const char *in_repo_path, unsigned char status,
5847 unsigned char staged_status, struct got_object_id *base_blob_id,
5848 struct got_object_id *base_commit_id,
5849 struct got_object_id *head_commit_id, struct got_repository *repo,
5852 const struct got_error *err = NULL;
5853 struct got_commit_object *commit = NULL;
5854 struct got_object_id *id = NULL;
5856 if (status != GOT_STATUS_ADD && staged_status != GOT_STATUS_ADD) {
5857 /* Trivial case: base commit == head commit */
5858 if (got_object_id_cmp(base_commit_id, head_commit_id) == 0)
5861 * Ensure file content which local changes were based
5862 * on matches file content in the branch head.
5864 err = got_object_open_as_commit(&commit, repo, head_commit_id);
5867 err = got_object_id_by_path(&id, repo, commit, in_repo_path);
5869 if (err->code == GOT_ERR_NO_TREE_ENTRY)
5870 err = got_error(ood_errcode);
5872 } else if (got_object_id_cmp(id, base_blob_id) != 0)
5873 err = got_error(ood_errcode);
5875 /* Require that added files don't exist in the branch head. */
5876 err = got_object_open_as_commit(&commit, repo, head_commit_id);
5879 err = got_object_id_by_path(&id, repo, commit, in_repo_path);
5880 if (err && err->code != GOT_ERR_NO_TREE_ENTRY)
5882 err = id ? got_error(ood_errcode) : NULL;
5887 got_object_commit_close(commit);
5891 static const struct got_error *
5892 commit_worktree(struct got_object_id **new_commit_id,
5893 struct got_pathlist_head *commitable_paths,
5894 struct got_object_id *head_commit_id,
5895 struct got_object_id *parent_id2,
5896 struct got_worktree *worktree,
5897 const char *author, const char *committer, char *diff_path,
5898 got_worktree_commit_msg_cb commit_msg_cb, void *commit_arg,
5899 got_worktree_status_cb status_cb, void *status_arg,
5900 struct got_repository *repo)
5902 const struct got_error *err = NULL, *unlockerr = NULL;
5903 struct got_pathlist_entry *pe;
5904 const char *head_ref_name = NULL;
5905 struct got_commit_object *head_commit = NULL;
5906 struct got_reference *head_ref2 = NULL;
5907 struct got_object_id *head_commit_id2 = NULL;
5908 struct got_tree_object *head_tree = NULL;
5909 struct got_object_id *new_tree_id = NULL;
5910 int nentries, nparents = 0;
5911 struct got_object_id_queue parent_ids;
5912 struct got_object_qid *pid = NULL;
5913 char *logmsg = NULL;
5916 *new_commit_id = NULL;
5918 STAILQ_INIT(&parent_ids);
5920 err = got_object_open_as_commit(&head_commit, repo, head_commit_id);
5924 err = got_object_open_as_tree(&head_tree, repo, head_commit->tree_id);
5928 if (commit_msg_cb != NULL) {
5929 err = commit_msg_cb(commitable_paths, diff_path,
5930 &logmsg, commit_arg);
5935 if (logmsg == NULL || strlen(logmsg) == 0) {
5936 err = got_error(GOT_ERR_COMMIT_MSG_EMPTY);
5940 /* Create blobs from added and modified files and record their IDs. */
5941 TAILQ_FOREACH(pe, commitable_paths, entry) {
5942 struct got_commitable *ct = pe->data;
5945 /* Blobs for staged files already exist. */
5946 if (ct->staged_status == GOT_STATUS_ADD ||
5947 ct->staged_status == GOT_STATUS_MODIFY)
5950 if (ct->status != GOT_STATUS_ADD &&
5951 ct->status != GOT_STATUS_MODIFY &&
5952 ct->status != GOT_STATUS_MODE_CHANGE)
5955 if (asprintf(&ondisk_path, "%s/%s",
5956 worktree->root_path, pe->path) == -1) {
5957 err = got_error_from_errno("asprintf");
5960 err = got_object_blob_create(&ct->blob_id, ondisk_path, repo);
5966 /* Recursively write new tree objects. */
5967 err = write_tree(&new_tree_id, &nentries, head_tree, "/",
5968 commitable_paths, status_cb, status_arg, repo);
5972 err = got_object_qid_alloc(&pid, worktree->base_commit_id);
5975 STAILQ_INSERT_TAIL(&parent_ids, pid, entry);
5978 err = got_object_qid_alloc(&pid, parent_id2);
5981 STAILQ_INSERT_TAIL(&parent_ids, pid, entry);
5984 timestamp = time(NULL);
5985 err = got_object_commit_create(new_commit_id, new_tree_id, &parent_ids,
5986 nparents, author, timestamp, committer, timestamp, logmsg, repo);
5992 /* Check if a concurrent commit to our branch has occurred. */
5993 head_ref_name = got_worktree_get_head_ref_name(worktree);
5994 if (head_ref_name == NULL) {
5995 err = got_error_from_errno("got_worktree_get_head_ref_name");
5998 /* Lock the reference here to prevent concurrent modification. */
5999 err = got_ref_open(&head_ref2, repo, head_ref_name, 1);
6002 err = got_ref_resolve(&head_commit_id2, repo, head_ref2);
6005 if (got_object_id_cmp(head_commit_id, head_commit_id2) != 0) {
6006 err = got_error(GOT_ERR_COMMIT_HEAD_CHANGED);
6009 /* Update branch head in repository. */
6010 err = got_ref_change_ref(head_ref2, *new_commit_id);
6013 err = got_ref_write(head_ref2, repo);
6017 err = got_worktree_set_base_commit_id(worktree, repo, *new_commit_id);
6021 err = ref_base_commit(worktree, repo);
6025 got_object_id_queue_free(&parent_ids);
6027 got_object_tree_close(head_tree);
6029 got_object_commit_close(head_commit);
6030 free(head_commit_id2);
6032 unlockerr = got_ref_unlock(head_ref2);
6033 if (unlockerr && err == NULL)
6035 got_ref_close(head_ref2);
6040 static const struct got_error *
6041 check_path_is_commitable(const char *path,
6042 struct got_pathlist_head *commitable_paths)
6044 struct got_pathlist_entry *cpe = NULL;
6045 size_t path_len = strlen(path);
6047 TAILQ_FOREACH(cpe, commitable_paths, entry) {
6048 struct got_commitable *ct = cpe->data;
6049 const char *ct_path = ct->path;
6051 while (ct_path[0] == '/')
6054 if (strcmp(path, ct_path) == 0 ||
6055 got_path_is_child(ct_path, path, path_len))
6060 return got_error_path(path, GOT_ERR_BAD_PATH);
6065 static const struct got_error *
6066 check_staged_file(void *arg, struct got_fileindex_entry *ie)
6068 int *have_staged_files = arg;
6070 if (got_fileindex_entry_stage_get(ie) != GOT_FILEIDX_STAGE_NONE) {
6071 *have_staged_files = 1;
6072 return got_error(GOT_ERR_CANCELLED);
6078 static const struct got_error *
6079 check_non_staged_files(struct got_fileindex *fileindex,
6080 struct got_pathlist_head *paths)
6082 struct got_pathlist_entry *pe;
6083 struct got_fileindex_entry *ie;
6085 TAILQ_FOREACH(pe, paths, entry) {
6086 if (pe->path[0] == '\0')
6088 ie = got_fileindex_entry_get(fileindex, pe->path, pe->path_len);
6090 return got_error_path(pe->path, GOT_ERR_BAD_PATH);
6091 if (got_fileindex_entry_stage_get(ie) == GOT_FILEIDX_STAGE_NONE)
6092 return got_error_path(pe->path,
6093 GOT_ERR_FILE_NOT_STAGED);
6099 const struct got_error *
6100 got_worktree_commit(struct got_object_id **new_commit_id,
6101 struct got_worktree *worktree, struct got_pathlist_head *paths,
6102 const char *author, const char *committer, int allow_bad_symlinks,
6103 int show_diff, got_worktree_commit_msg_cb commit_msg_cb, void *commit_arg,
6104 got_worktree_status_cb status_cb, void *status_arg,
6105 struct got_repository *repo)
6107 const struct got_error *err = NULL, *unlockerr = NULL, *sync_err;
6108 struct got_fileindex *fileindex = NULL;
6109 char *fileindex_path = NULL;
6110 struct got_pathlist_head commitable_paths;
6111 struct collect_commitables_arg cc_arg;
6112 struct got_pathlist_entry *pe;
6113 struct got_reference *head_ref = NULL;
6114 struct got_object_id *head_commit_id = NULL;
6115 char *diff_path = NULL;
6116 int have_staged_files = 0;
6118 *new_commit_id = NULL;
6120 memset(&cc_arg, 0, sizeof(cc_arg));
6121 TAILQ_INIT(&commitable_paths);
6123 err = lock_worktree(worktree, LOCK_EX);
6127 err = got_ref_open(&head_ref, repo, worktree->head_ref_name, 0);
6131 err = got_ref_resolve(&head_commit_id, repo, head_ref);
6135 err = open_fileindex(&fileindex, &fileindex_path, worktree);
6139 err = got_fileindex_for_each_entry_safe(fileindex, check_staged_file,
6140 &have_staged_files);
6141 if (err && err->code != GOT_ERR_CANCELLED)
6143 if (have_staged_files) {
6144 err = check_non_staged_files(fileindex, paths);
6149 cc_arg.commitable_paths = &commitable_paths;
6150 cc_arg.worktree = worktree;
6151 cc_arg.fileindex = fileindex;
6153 cc_arg.have_staged_files = have_staged_files;
6154 cc_arg.allow_bad_symlinks = allow_bad_symlinks;
6155 cc_arg.diff_header_shown = 0;
6157 err = got_opentemp_named(&diff_path, &cc_arg.diff_outfile,
6158 GOT_TMPDIR_STR "/got", ".diff");
6161 cc_arg.f1 = got_opentemp();
6162 if (cc_arg.f1 == NULL) {
6163 err = got_error_from_errno("got_opentemp");
6166 cc_arg.f2 = got_opentemp();
6167 if (cc_arg.f2 == NULL) {
6168 err = got_error_from_errno("got_opentemp");
6173 TAILQ_FOREACH(pe, paths, entry) {
6174 err = worktree_status(worktree, pe->path, fileindex, repo,
6175 collect_commitables, &cc_arg, NULL, NULL, 0, 0);
6181 if (fflush(cc_arg.diff_outfile) == EOF) {
6182 err = got_error_from_errno("fflush");
6187 if (TAILQ_EMPTY(&commitable_paths)) {
6188 err = got_error(GOT_ERR_COMMIT_NO_CHANGES);
6192 TAILQ_FOREACH(pe, paths, entry) {
6193 err = check_path_is_commitable(pe->path, &commitable_paths);
6198 TAILQ_FOREACH(pe, &commitable_paths, entry) {
6199 struct got_commitable *ct = pe->data;
6200 const char *ct_path = ct->in_repo_path;
6202 while (ct_path[0] == '/')
6204 err = check_out_of_date(ct_path, ct->status,
6205 ct->staged_status, ct->base_blob_id, ct->base_commit_id,
6206 head_commit_id, repo, GOT_ERR_COMMIT_OUT_OF_DATE);
6212 err = commit_worktree(new_commit_id, &commitable_paths,
6213 head_commit_id, NULL, worktree, author, committer, diff_path,
6214 commit_msg_cb, commit_arg, status_cb, status_arg, repo);
6218 err = update_fileindex_after_commit(worktree, &commitable_paths,
6219 *new_commit_id, fileindex, have_staged_files);
6220 sync_err = sync_fileindex(fileindex, fileindex_path);
6221 if (sync_err && err == NULL)
6225 got_fileindex_free(fileindex);
6226 free(fileindex_path);
6227 unlockerr = lock_worktree(worktree, LOCK_SH);
6228 if (unlockerr && err == NULL)
6230 TAILQ_FOREACH(pe, &commitable_paths, entry) {
6231 struct got_commitable *ct = pe->data;
6232 free_commitable(ct);
6234 got_pathlist_free(&commitable_paths);
6235 if (diff_path && unlink(diff_path) == -1 && err == NULL)
6236 err = got_error_from_errno2("unlink", diff_path);
6238 if (cc_arg.diff_outfile && fclose(cc_arg.diff_outfile) == EOF &&
6240 err = got_error_from_errno("fclose");
6245 got_commitable_get_path(struct got_commitable *ct)
6251 got_commitable_get_status(struct got_commitable *ct)
6256 struct check_rebase_ok_arg {
6257 struct got_worktree *worktree;
6258 struct got_repository *repo;
6261 static const struct got_error *
6262 check_rebase_ok(void *arg, struct got_fileindex_entry *ie)
6264 const struct got_error *err = NULL;
6265 struct check_rebase_ok_arg *a = arg;
6266 unsigned char status;
6270 /* Reject rebase of a work tree with mixed base commits. */
6271 if (memcmp(ie->commit_sha1, a->worktree->base_commit_id->sha1,
6272 SHA1_DIGEST_LENGTH))
6273 return got_error(GOT_ERR_MIXED_COMMITS);
6275 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path, ie->path)
6277 return got_error_from_errno("asprintf");
6279 /* Reject rebase of a work tree with modified or staged files. */
6280 err = get_file_status(&status, &sb, ie, ondisk_path, -1, NULL, a->repo);
6285 if (status != GOT_STATUS_NO_CHANGE)
6286 return got_error(GOT_ERR_MODIFIED);
6287 if (get_staged_status(ie) != GOT_STATUS_NO_CHANGE)
6288 return got_error_path(ie->path, GOT_ERR_FILE_STAGED);
6293 const struct got_error *
6294 got_worktree_rebase_prepare(struct got_reference **new_base_branch_ref,
6295 struct got_reference **tmp_branch, struct got_fileindex **fileindex,
6296 struct got_worktree *worktree, struct got_reference *branch,
6297 struct got_repository *repo)
6299 const struct got_error *err = NULL;
6300 char *tmp_branch_name = NULL, *new_base_branch_ref_name = NULL;
6301 char *branch_ref_name = NULL;
6302 char *fileindex_path = NULL;
6303 struct check_rebase_ok_arg ok_arg;
6304 struct got_reference *wt_branch = NULL, *branch_ref = NULL;
6305 struct got_object_id *wt_branch_tip = NULL;
6307 *new_base_branch_ref = NULL;
6311 err = lock_worktree(worktree, LOCK_EX);
6315 err = open_fileindex(fileindex, &fileindex_path, worktree);
6319 ok_arg.worktree = worktree;
6321 err = got_fileindex_for_each_entry_safe(*fileindex, check_rebase_ok,
6326 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
6330 err = get_newbase_symref_name(&new_base_branch_ref_name, worktree);
6334 err = get_rebase_branch_symref_name(&branch_ref_name, worktree);
6338 err = got_ref_open(&wt_branch, repo, worktree->head_ref_name,
6343 err = got_ref_resolve(&wt_branch_tip, repo, wt_branch);
6346 if (got_object_id_cmp(worktree->base_commit_id, wt_branch_tip) != 0) {
6347 err = got_error(GOT_ERR_REBASE_OUT_OF_DATE);
6351 err = got_ref_alloc_symref(new_base_branch_ref,
6352 new_base_branch_ref_name, wt_branch);
6355 err = got_ref_write(*new_base_branch_ref, repo);
6359 /* TODO Lock original branch's ref while rebasing? */
6361 err = got_ref_alloc_symref(&branch_ref, branch_ref_name, branch);
6365 err = got_ref_write(branch_ref, repo);
6369 err = got_ref_alloc(tmp_branch, tmp_branch_name,
6370 worktree->base_commit_id);
6373 err = got_ref_write(*tmp_branch, repo);
6377 err = got_worktree_set_head_ref(worktree, *tmp_branch);
6381 free(fileindex_path);
6382 free(tmp_branch_name);
6383 free(new_base_branch_ref_name);
6384 free(branch_ref_name);
6386 got_ref_close(branch_ref);
6388 got_ref_close(wt_branch);
6389 free(wt_branch_tip);
6391 if (*new_base_branch_ref) {
6392 got_ref_close(*new_base_branch_ref);
6393 *new_base_branch_ref = NULL;
6396 got_ref_close(*tmp_branch);
6400 got_fileindex_free(*fileindex);
6403 lock_worktree(worktree, LOCK_SH);
6408 const struct got_error *
6409 got_worktree_rebase_continue(struct got_object_id **commit_id,
6410 struct got_reference **new_base_branch, struct got_reference **tmp_branch,
6411 struct got_reference **branch, struct got_fileindex **fileindex,
6412 struct got_worktree *worktree, struct got_repository *repo)
6414 const struct got_error *err;
6415 char *commit_ref_name = NULL, *new_base_branch_ref_name = NULL;
6416 char *tmp_branch_name = NULL, *branch_ref_name = NULL;
6417 struct got_reference *commit_ref = NULL, *branch_ref = NULL;
6418 char *fileindex_path = NULL;
6419 int have_staged_files = 0;
6422 *new_base_branch = NULL;
6427 err = lock_worktree(worktree, LOCK_EX);
6431 err = open_fileindex(fileindex, &fileindex_path, worktree);
6435 err = got_fileindex_for_each_entry_safe(*fileindex, check_staged_file,
6436 &have_staged_files);
6437 if (err && err->code != GOT_ERR_CANCELLED)
6439 if (have_staged_files) {
6440 err = got_error(GOT_ERR_STAGED_PATHS);
6444 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
6448 err = get_rebase_branch_symref_name(&branch_ref_name, worktree);
6452 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
6456 err = get_newbase_symref_name(&new_base_branch_ref_name, worktree);
6460 err = got_ref_open(&branch_ref, repo, branch_ref_name, 0);
6464 err = got_ref_open(branch, repo,
6465 got_ref_get_symref_target(branch_ref), 0);
6469 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
6473 err = got_ref_resolve(commit_id, repo, commit_ref);
6477 err = got_ref_open(new_base_branch, repo,
6478 new_base_branch_ref_name, 0);
6482 err = got_ref_open(tmp_branch, repo, tmp_branch_name, 0);
6486 free(commit_ref_name);
6487 free(branch_ref_name);
6488 free(fileindex_path);
6490 got_ref_close(commit_ref);
6492 got_ref_close(branch_ref);
6497 got_ref_close(*tmp_branch);
6500 if (*new_base_branch) {
6501 got_ref_close(*new_base_branch);
6502 *new_base_branch = NULL;
6505 got_ref_close(*branch);
6509 got_fileindex_free(*fileindex);
6512 lock_worktree(worktree, LOCK_SH);
6517 const struct got_error *
6518 got_worktree_rebase_in_progress(int *in_progress, struct got_worktree *worktree)
6520 const struct got_error *err;
6521 char *tmp_branch_name = NULL;
6523 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
6527 *in_progress = (strcmp(tmp_branch_name, worktree->head_ref_name) == 0);
6528 free(tmp_branch_name);
6532 static const struct got_error *
6533 collect_rebase_commit_msg(struct got_pathlist_head *commitable_paths,
6534 const char *diff_path, char **logmsg, void *arg)
6540 static const struct got_error *
6541 rebase_status(void *arg, unsigned char status, unsigned char staged_status,
6542 const char *path, struct got_object_id *blob_id,
6543 struct got_object_id *staged_blob_id, struct got_object_id *commit_id,
6544 int dirfd, const char *de_name)
6549 struct collect_merged_paths_arg {
6550 got_worktree_checkout_cb progress_cb;
6552 struct got_pathlist_head *merged_paths;
6555 static const struct got_error *
6556 collect_merged_paths(void *arg, unsigned char status, const char *path)
6558 const struct got_error *err;
6559 struct collect_merged_paths_arg *a = arg;
6561 struct got_pathlist_entry *new;
6563 err = (*a->progress_cb)(a->progress_arg, status, path);
6567 if (status != GOT_STATUS_MERGE &&
6568 status != GOT_STATUS_ADD &&
6569 status != GOT_STATUS_DELETE &&
6570 status != GOT_STATUS_CONFLICT)
6575 return got_error_from_errno("strdup");
6577 err = got_pathlist_insert(&new, a->merged_paths, p, NULL);
6578 if (err || new == NULL)
6584 got_worktree_rebase_pathlist_free(struct got_pathlist_head *merged_paths)
6586 struct got_pathlist_entry *pe;
6588 TAILQ_FOREACH(pe, merged_paths, entry)
6589 free((char *)pe->path);
6591 got_pathlist_free(merged_paths);
6594 static const struct got_error *
6595 store_commit_id(const char *commit_ref_name, struct got_object_id *commit_id,
6596 int is_rebase, struct got_repository *repo)
6598 const struct got_error *err;
6599 struct got_reference *commit_ref = NULL;
6601 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
6603 if (err->code != GOT_ERR_NOT_REF)
6605 err = got_ref_alloc(&commit_ref, commit_ref_name, commit_id);
6608 err = got_ref_write(commit_ref, repo);
6611 } else if (is_rebase) {
6612 struct got_object_id *stored_id;
6615 err = got_ref_resolve(&stored_id, repo, commit_ref);
6618 cmp = got_object_id_cmp(commit_id, stored_id);
6621 err = got_error(GOT_ERR_REBASE_COMMITID);
6627 got_ref_close(commit_ref);
6631 static const struct got_error *
6632 rebase_merge_files(struct got_pathlist_head *merged_paths,
6633 const char *commit_ref_name, struct got_worktree *worktree,
6634 struct got_fileindex *fileindex, struct got_object_id *parent_commit_id,
6635 struct got_object_id *commit_id, struct got_repository *repo,
6636 got_worktree_checkout_cb progress_cb, void *progress_arg,
6637 got_cancel_cb cancel_cb, void *cancel_arg)
6639 const struct got_error *err;
6640 struct got_reference *commit_ref = NULL;
6641 struct collect_merged_paths_arg cmp_arg;
6642 char *fileindex_path;
6644 /* Work tree is locked/unlocked during rebase preparation/teardown. */
6646 err = get_fileindex_path(&fileindex_path, worktree);
6650 cmp_arg.progress_cb = progress_cb;
6651 cmp_arg.progress_arg = progress_arg;
6652 cmp_arg.merged_paths = merged_paths;
6653 err = merge_files(worktree, fileindex, fileindex_path,
6654 parent_commit_id, commit_id, repo, collect_merged_paths,
6655 &cmp_arg, cancel_cb, cancel_arg);
6657 got_ref_close(commit_ref);
6661 const struct got_error *
6662 got_worktree_rebase_merge_files(struct got_pathlist_head *merged_paths,
6663 struct got_worktree *worktree, struct got_fileindex *fileindex,
6664 struct got_object_id *parent_commit_id, struct got_object_id *commit_id,
6665 struct got_repository *repo,
6666 got_worktree_checkout_cb progress_cb, void *progress_arg,
6667 got_cancel_cb cancel_cb, void *cancel_arg)
6669 const struct got_error *err;
6670 char *commit_ref_name;
6672 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
6676 err = store_commit_id(commit_ref_name, commit_id, 1, repo);
6680 err = rebase_merge_files(merged_paths, commit_ref_name, worktree,
6681 fileindex, parent_commit_id, commit_id, repo, progress_cb,
6682 progress_arg, cancel_cb, cancel_arg);
6684 free(commit_ref_name);
6688 const struct got_error *
6689 got_worktree_histedit_merge_files(struct got_pathlist_head *merged_paths,
6690 struct got_worktree *worktree, struct got_fileindex *fileindex,
6691 struct got_object_id *parent_commit_id, struct got_object_id *commit_id,
6692 struct got_repository *repo,
6693 got_worktree_checkout_cb progress_cb, void *progress_arg,
6694 got_cancel_cb cancel_cb, void *cancel_arg)
6696 const struct got_error *err;
6697 char *commit_ref_name;
6699 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
6703 err = store_commit_id(commit_ref_name, commit_id, 0, repo);
6707 err = rebase_merge_files(merged_paths, commit_ref_name, worktree,
6708 fileindex, parent_commit_id, commit_id, repo, progress_cb,
6709 progress_arg, cancel_cb, cancel_arg);
6711 free(commit_ref_name);
6715 static const struct got_error *
6716 rebase_commit(struct got_object_id **new_commit_id,
6717 struct got_pathlist_head *merged_paths, struct got_reference *commit_ref,
6718 struct got_worktree *worktree, struct got_fileindex *fileindex,
6719 struct got_reference *tmp_branch, const char *committer,
6720 struct got_commit_object *orig_commit, const char *new_logmsg,
6721 struct got_repository *repo)
6723 const struct got_error *err, *sync_err;
6724 struct got_pathlist_head commitable_paths;
6725 struct collect_commitables_arg cc_arg;
6726 char *fileindex_path = NULL;
6727 struct got_reference *head_ref = NULL;
6728 struct got_object_id *head_commit_id = NULL;
6729 char *logmsg = NULL;
6731 memset(&cc_arg, 0, sizeof(cc_arg));
6732 TAILQ_INIT(&commitable_paths);
6733 *new_commit_id = NULL;
6735 /* Work tree is locked/unlocked during rebase preparation/teardown. */
6737 err = get_fileindex_path(&fileindex_path, worktree);
6741 cc_arg.commitable_paths = &commitable_paths;
6742 cc_arg.worktree = worktree;
6744 cc_arg.have_staged_files = 0;
6746 * If possible get the status of individual files directly to
6747 * avoid crawling the entire work tree once per rebased commit.
6749 * Ideally, merged_paths would contain a list of commitables
6750 * we could use so we could skip worktree_status() entirely.
6751 * However, we would then need carefully keep track of cumulative
6752 * effects of operations such as file additions and deletions
6753 * in 'got histedit -f' (folding multiple commits into one),
6754 * and this extra complexity is not really worth it.
6757 struct got_pathlist_entry *pe;
6758 TAILQ_FOREACH(pe, merged_paths, entry) {
6759 err = worktree_status(worktree, pe->path, fileindex,
6760 repo, collect_commitables, &cc_arg, NULL, NULL, 1,
6766 err = worktree_status(worktree, "", fileindex, repo,
6767 collect_commitables, &cc_arg, NULL, NULL, 1, 0);
6772 if (TAILQ_EMPTY(&commitable_paths)) {
6773 /* No-op change; commit will be elided. */
6774 err = got_ref_delete(commit_ref, repo);
6777 err = got_error(GOT_ERR_COMMIT_NO_CHANGES);
6781 err = got_ref_open(&head_ref, repo, worktree->head_ref_name, 0);
6785 err = got_ref_resolve(&head_commit_id, repo, head_ref);
6790 logmsg = strdup(new_logmsg);
6791 if (logmsg == NULL) {
6792 err = got_error_from_errno("strdup");
6796 err = got_object_commit_get_logmsg(&logmsg, orig_commit);
6801 /* NB: commit_worktree will call free(logmsg) */
6802 err = commit_worktree(new_commit_id, &commitable_paths, head_commit_id,
6803 NULL, worktree, got_object_commit_get_author(orig_commit),
6804 committer ? committer :
6805 got_object_commit_get_committer(orig_commit), NULL,
6806 collect_rebase_commit_msg, logmsg, rebase_status, NULL, repo);
6810 err = got_ref_change_ref(tmp_branch, *new_commit_id);
6814 err = got_ref_delete(commit_ref, repo);
6818 err = update_fileindex_after_commit(worktree, &commitable_paths,
6819 *new_commit_id, fileindex, 0);
6820 sync_err = sync_fileindex(fileindex, fileindex_path);
6821 if (sync_err && err == NULL)
6824 free(fileindex_path);
6825 free(head_commit_id);
6827 got_ref_close(head_ref);
6829 free(*new_commit_id);
6830 *new_commit_id = NULL;
6835 const struct got_error *
6836 got_worktree_rebase_commit(struct got_object_id **new_commit_id,
6837 struct got_pathlist_head *merged_paths, struct got_worktree *worktree,
6838 struct got_fileindex *fileindex, struct got_reference *tmp_branch,
6839 const char *committer, struct got_commit_object *orig_commit,
6840 struct got_object_id *orig_commit_id, struct got_repository *repo)
6842 const struct got_error *err;
6843 char *commit_ref_name;
6844 struct got_reference *commit_ref = NULL;
6845 struct got_object_id *commit_id = NULL;
6847 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
6851 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
6854 err = got_ref_resolve(&commit_id, repo, commit_ref);
6857 if (got_object_id_cmp(commit_id, orig_commit_id) != 0) {
6858 err = got_error(GOT_ERR_REBASE_COMMITID);
6862 err = rebase_commit(new_commit_id, merged_paths, commit_ref,
6863 worktree, fileindex, tmp_branch, committer, orig_commit,
6867 got_ref_close(commit_ref);
6868 free(commit_ref_name);
6873 const struct got_error *
6874 got_worktree_histedit_commit(struct got_object_id **new_commit_id,
6875 struct got_pathlist_head *merged_paths, struct got_worktree *worktree,
6876 struct got_fileindex *fileindex, struct got_reference *tmp_branch,
6877 const char *committer, struct got_commit_object *orig_commit,
6878 struct got_object_id *orig_commit_id, const char *new_logmsg,
6879 struct got_repository *repo)
6881 const struct got_error *err;
6882 char *commit_ref_name;
6883 struct got_reference *commit_ref = NULL;
6885 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
6889 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
6893 err = rebase_commit(new_commit_id, merged_paths, commit_ref,
6894 worktree, fileindex, tmp_branch, committer, orig_commit,
6898 got_ref_close(commit_ref);
6899 free(commit_ref_name);
6903 const struct got_error *
6904 got_worktree_rebase_postpone(struct got_worktree *worktree,
6905 struct got_fileindex *fileindex)
6908 got_fileindex_free(fileindex);
6909 return lock_worktree(worktree, LOCK_SH);
6912 static const struct got_error *
6913 delete_ref(const char *name, struct got_repository *repo)
6915 const struct got_error *err;
6916 struct got_reference *ref;
6918 err = got_ref_open(&ref, repo, name, 0);
6920 if (err->code == GOT_ERR_NOT_REF)
6925 err = got_ref_delete(ref, repo);
6930 static const struct got_error *
6931 delete_rebase_refs(struct got_worktree *worktree, struct got_repository *repo)
6933 const struct got_error *err;
6934 char *tmp_branch_name = NULL, *new_base_branch_ref_name = NULL;
6935 char *branch_ref_name = NULL, *commit_ref_name = NULL;
6937 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
6940 err = delete_ref(tmp_branch_name, repo);
6944 err = get_newbase_symref_name(&new_base_branch_ref_name, worktree);
6947 err = delete_ref(new_base_branch_ref_name, repo);
6951 err = get_rebase_branch_symref_name(&branch_ref_name, worktree);
6954 err = delete_ref(branch_ref_name, repo);
6958 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
6961 err = delete_ref(commit_ref_name, repo);
6966 free(tmp_branch_name);
6967 free(new_base_branch_ref_name);
6968 free(branch_ref_name);
6969 free(commit_ref_name);
6973 static const struct got_error *
6974 create_backup_ref(const char *backup_ref_prefix, struct got_reference *branch,
6975 struct got_object_id *new_commit_id, struct got_repository *repo)
6977 const struct got_error *err;
6978 struct got_reference *ref = NULL;
6979 struct got_object_id *old_commit_id = NULL;
6980 const char *branch_name = NULL;
6981 char *new_id_str = NULL;
6982 char *refname = NULL;
6984 branch_name = got_ref_get_name(branch);
6985 if (strncmp(branch_name, "refs/heads/", 11) != 0)
6986 return got_error(GOT_ERR_BAD_REF_NAME); /* should not happen */
6989 err = got_object_id_str(&new_id_str, new_commit_id);
6993 if (asprintf(&refname, "%s/%s/%s", backup_ref_prefix, branch_name,
6994 new_id_str) == -1) {
6995 err = got_error_from_errno("asprintf");
6999 err = got_ref_resolve(&old_commit_id, repo, branch);
7003 err = got_ref_alloc(&ref, refname, old_commit_id);
7007 err = got_ref_write(ref, repo);
7011 free(old_commit_id);
7017 const struct got_error *
7018 got_worktree_rebase_complete(struct got_worktree *worktree,
7019 struct got_fileindex *fileindex, struct got_reference *new_base_branch,
7020 struct got_reference *tmp_branch, struct got_reference *rebased_branch,
7021 struct got_repository *repo, int create_backup)
7023 const struct got_error *err, *unlockerr, *sync_err;
7024 struct got_object_id *new_head_commit_id = NULL;
7025 char *fileindex_path = NULL;
7027 err = got_ref_resolve(&new_head_commit_id, repo, tmp_branch);
7031 if (create_backup) {
7032 err = create_backup_ref(GOT_WORKTREE_REBASE_BACKUP_REF_PREFIX,
7033 rebased_branch, new_head_commit_id, repo);
7038 err = got_ref_change_ref(rebased_branch, new_head_commit_id);
7042 err = got_ref_write(rebased_branch, repo);
7046 err = got_worktree_set_head_ref(worktree, rebased_branch);
7050 err = delete_rebase_refs(worktree, repo);
7054 err = get_fileindex_path(&fileindex_path, worktree);
7057 err = bump_base_commit_id_everywhere(worktree, fileindex, NULL, NULL);
7058 sync_err = sync_fileindex(fileindex, fileindex_path);
7059 if (sync_err && err == NULL)
7062 got_fileindex_free(fileindex);
7063 free(fileindex_path);
7064 free(new_head_commit_id);
7065 unlockerr = lock_worktree(worktree, LOCK_SH);
7066 if (unlockerr && err == NULL)
7071 const struct got_error *
7072 got_worktree_rebase_abort(struct got_worktree *worktree,
7073 struct got_fileindex *fileindex, struct got_repository *repo,
7074 struct got_reference *new_base_branch,
7075 got_worktree_checkout_cb progress_cb, void *progress_arg)
7077 const struct got_error *err, *unlockerr, *sync_err;
7078 struct got_reference *resolved = NULL;
7079 struct got_object_id *commit_id = NULL;
7080 struct got_commit_object *commit = NULL;
7081 char *fileindex_path = NULL;
7082 struct revert_file_args rfa;
7083 struct got_object_id *tree_id = NULL;
7085 err = lock_worktree(worktree, LOCK_EX);
7089 err = got_object_open_as_commit(&commit, repo,
7090 worktree->base_commit_id);
7094 err = got_ref_open(&resolved, repo,
7095 got_ref_get_symref_target(new_base_branch), 0);
7099 err = got_worktree_set_head_ref(worktree, resolved);
7104 * XXX commits to the base branch could have happened while
7105 * we were busy rebasing; should we store the original commit ID
7106 * when rebase begins and read it back here?
7108 err = got_ref_resolve(&commit_id, repo, resolved);
7112 err = got_worktree_set_base_commit_id(worktree, repo, commit_id);
7116 err = got_object_id_by_path(&tree_id, repo, commit,
7117 worktree->path_prefix);
7121 err = delete_rebase_refs(worktree, repo);
7125 err = get_fileindex_path(&fileindex_path, worktree);
7129 rfa.worktree = worktree;
7130 rfa.fileindex = fileindex;
7131 rfa.progress_cb = progress_cb;
7132 rfa.progress_arg = progress_arg;
7133 rfa.patch_cb = NULL;
7134 rfa.patch_arg = NULL;
7136 rfa.unlink_added_files = 0;
7137 err = worktree_status(worktree, "", fileindex, repo,
7138 revert_file, &rfa, NULL, NULL, 1, 0);
7142 err = checkout_files(worktree, fileindex, "", tree_id, NULL,
7143 repo, progress_cb, progress_arg, NULL, NULL);
7145 sync_err = sync_fileindex(fileindex, fileindex_path);
7146 if (sync_err && err == NULL)
7149 got_ref_close(resolved);
7153 got_object_commit_close(commit);
7155 got_fileindex_free(fileindex);
7156 free(fileindex_path);
7158 unlockerr = lock_worktree(worktree, LOCK_SH);
7159 if (unlockerr && err == NULL)
7164 const struct got_error *
7165 got_worktree_histedit_prepare(struct got_reference **tmp_branch,
7166 struct got_reference **branch_ref, struct got_object_id **base_commit_id,
7167 struct got_fileindex **fileindex, struct got_worktree *worktree,
7168 struct got_repository *repo)
7170 const struct got_error *err = NULL;
7171 char *tmp_branch_name = NULL;
7172 char *branch_ref_name = NULL;
7173 char *base_commit_ref_name = NULL;
7174 char *fileindex_path = NULL;
7175 struct check_rebase_ok_arg ok_arg;
7176 struct got_reference *wt_branch = NULL;
7177 struct got_reference *base_commit_ref = NULL;
7181 *base_commit_id = NULL;
7184 err = lock_worktree(worktree, LOCK_EX);
7188 err = open_fileindex(fileindex, &fileindex_path, worktree);
7192 ok_arg.worktree = worktree;
7194 err = got_fileindex_for_each_entry_safe(*fileindex, check_rebase_ok,
7199 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
7203 err = get_histedit_branch_symref_name(&branch_ref_name, worktree);
7207 err = get_histedit_base_commit_ref_name(&base_commit_ref_name,
7212 err = got_ref_open(&wt_branch, repo, worktree->head_ref_name,
7217 err = got_ref_alloc_symref(branch_ref, branch_ref_name, wt_branch);
7221 err = got_ref_write(*branch_ref, repo);
7225 err = got_ref_alloc(&base_commit_ref, base_commit_ref_name,
7226 worktree->base_commit_id);
7229 err = got_ref_write(base_commit_ref, repo);
7232 *base_commit_id = got_object_id_dup(worktree->base_commit_id);
7233 if (*base_commit_id == NULL) {
7234 err = got_error_from_errno("got_object_id_dup");
7238 err = got_ref_alloc(tmp_branch, tmp_branch_name,
7239 worktree->base_commit_id);
7242 err = got_ref_write(*tmp_branch, repo);
7246 err = got_worktree_set_head_ref(worktree, *tmp_branch);
7250 free(fileindex_path);
7251 free(tmp_branch_name);
7252 free(branch_ref_name);
7253 free(base_commit_ref_name);
7255 got_ref_close(wt_branch);
7258 got_ref_close(*branch_ref);
7262 got_ref_close(*tmp_branch);
7265 free(*base_commit_id);
7267 got_fileindex_free(*fileindex);
7270 lock_worktree(worktree, LOCK_SH);
7275 const struct got_error *
7276 got_worktree_histedit_postpone(struct got_worktree *worktree,
7277 struct got_fileindex *fileindex)
7280 got_fileindex_free(fileindex);
7281 return lock_worktree(worktree, LOCK_SH);
7284 const struct got_error *
7285 got_worktree_histedit_in_progress(int *in_progress,
7286 struct got_worktree *worktree)
7288 const struct got_error *err;
7289 char *tmp_branch_name = NULL;
7291 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
7295 *in_progress = (strcmp(tmp_branch_name, worktree->head_ref_name) == 0);
7296 free(tmp_branch_name);
7300 const struct got_error *
7301 got_worktree_histedit_continue(struct got_object_id **commit_id,
7302 struct got_reference **tmp_branch, struct got_reference **branch_ref,
7303 struct got_object_id **base_commit_id, struct got_fileindex **fileindex,
7304 struct got_worktree *worktree, struct got_repository *repo)
7306 const struct got_error *err;
7307 char *commit_ref_name = NULL, *base_commit_ref_name = NULL;
7308 char *tmp_branch_name = NULL, *branch_ref_name = NULL;
7309 struct got_reference *commit_ref = NULL;
7310 struct got_reference *base_commit_ref = NULL;
7311 char *fileindex_path = NULL;
7312 int have_staged_files = 0;
7316 *base_commit_id = NULL;
7319 err = lock_worktree(worktree, LOCK_EX);
7323 err = open_fileindex(fileindex, &fileindex_path, worktree);
7327 err = got_fileindex_for_each_entry_safe(*fileindex, check_staged_file,
7328 &have_staged_files);
7329 if (err && err->code != GOT_ERR_CANCELLED)
7331 if (have_staged_files) {
7332 err = got_error(GOT_ERR_STAGED_PATHS);
7336 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
7340 err = get_histedit_branch_symref_name(&branch_ref_name, worktree);
7344 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
7348 err = get_histedit_base_commit_ref_name(&base_commit_ref_name,
7353 err = got_ref_open(branch_ref, repo, branch_ref_name, 0);
7357 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
7360 err = got_ref_resolve(commit_id, repo, commit_ref);
7364 err = got_ref_open(&base_commit_ref, repo, base_commit_ref_name, 0);
7367 err = got_ref_resolve(base_commit_id, repo, base_commit_ref);
7371 err = got_ref_open(tmp_branch, repo, tmp_branch_name, 0);
7375 free(commit_ref_name);
7376 free(branch_ref_name);
7377 free(fileindex_path);
7379 got_ref_close(commit_ref);
7380 if (base_commit_ref)
7381 got_ref_close(base_commit_ref);
7385 free(*base_commit_id);
7386 *base_commit_id = NULL;
7388 got_ref_close(*tmp_branch);
7392 got_fileindex_free(*fileindex);
7395 lock_worktree(worktree, LOCK_EX);
7400 static const struct got_error *
7401 delete_histedit_refs(struct got_worktree *worktree, struct got_repository *repo)
7403 const struct got_error *err;
7404 char *tmp_branch_name = NULL, *base_commit_ref_name = NULL;
7405 char *branch_ref_name = NULL, *commit_ref_name = NULL;
7407 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
7410 err = delete_ref(tmp_branch_name, repo);
7414 err = get_histedit_base_commit_ref_name(&base_commit_ref_name,
7418 err = delete_ref(base_commit_ref_name, repo);
7422 err = get_histedit_branch_symref_name(&branch_ref_name, worktree);
7425 err = delete_ref(branch_ref_name, repo);
7429 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
7432 err = delete_ref(commit_ref_name, repo);
7436 free(tmp_branch_name);
7437 free(base_commit_ref_name);
7438 free(branch_ref_name);
7439 free(commit_ref_name);
7443 const struct got_error *
7444 got_worktree_histedit_abort(struct got_worktree *worktree,
7445 struct got_fileindex *fileindex, struct got_repository *repo,
7446 struct got_reference *branch, struct got_object_id *base_commit_id,
7447 got_worktree_checkout_cb progress_cb, void *progress_arg)
7449 const struct got_error *err, *unlockerr, *sync_err;
7450 struct got_reference *resolved = NULL;
7451 char *fileindex_path = NULL;
7452 struct got_commit_object *commit = NULL;
7453 struct got_object_id *tree_id = NULL;
7454 struct revert_file_args rfa;
7456 err = lock_worktree(worktree, LOCK_EX);
7460 err = got_object_open_as_commit(&commit, repo,
7461 worktree->base_commit_id);
7465 err = got_ref_open(&resolved, repo,
7466 got_ref_get_symref_target(branch), 0);
7470 err = got_worktree_set_head_ref(worktree, resolved);
7474 err = got_worktree_set_base_commit_id(worktree, repo, base_commit_id);
7478 err = got_object_id_by_path(&tree_id, repo, commit,
7479 worktree->path_prefix);
7483 err = delete_histedit_refs(worktree, repo);
7487 err = get_fileindex_path(&fileindex_path, worktree);
7491 rfa.worktree = worktree;
7492 rfa.fileindex = fileindex;
7493 rfa.progress_cb = progress_cb;
7494 rfa.progress_arg = progress_arg;
7495 rfa.patch_cb = NULL;
7496 rfa.patch_arg = NULL;
7498 rfa.unlink_added_files = 0;
7499 err = worktree_status(worktree, "", fileindex, repo,
7500 revert_file, &rfa, NULL, NULL, 1, 0);
7504 err = checkout_files(worktree, fileindex, "", tree_id, NULL,
7505 repo, progress_cb, progress_arg, NULL, NULL);
7507 sync_err = sync_fileindex(fileindex, fileindex_path);
7508 if (sync_err && err == NULL)
7511 got_ref_close(resolved);
7513 free(fileindex_path);
7515 unlockerr = lock_worktree(worktree, LOCK_SH);
7516 if (unlockerr && err == NULL)
7521 const struct got_error *
7522 got_worktree_histedit_complete(struct got_worktree *worktree,
7523 struct got_fileindex *fileindex, struct got_reference *tmp_branch,
7524 struct got_reference *edited_branch, struct got_repository *repo)
7526 const struct got_error *err, *unlockerr, *sync_err;
7527 struct got_object_id *new_head_commit_id = NULL;
7528 struct got_reference *resolved = NULL;
7529 char *fileindex_path = NULL;
7531 err = got_ref_resolve(&new_head_commit_id, repo, tmp_branch);
7535 err = got_ref_open(&resolved, repo,
7536 got_ref_get_symref_target(edited_branch), 0);
7540 err = create_backup_ref(GOT_WORKTREE_HISTEDIT_BACKUP_REF_PREFIX,
7541 resolved, new_head_commit_id, repo);
7545 err = got_ref_change_ref(resolved, new_head_commit_id);
7549 err = got_ref_write(resolved, repo);
7553 err = got_worktree_set_head_ref(worktree, resolved);
7557 err = delete_histedit_refs(worktree, repo);
7561 err = get_fileindex_path(&fileindex_path, worktree);
7564 err = bump_base_commit_id_everywhere(worktree, fileindex, NULL, NULL);
7565 sync_err = sync_fileindex(fileindex, fileindex_path);
7566 if (sync_err && err == NULL)
7569 got_fileindex_free(fileindex);
7570 free(fileindex_path);
7571 free(new_head_commit_id);
7572 unlockerr = lock_worktree(worktree, LOCK_SH);
7573 if (unlockerr && err == NULL)
7578 const struct got_error *
7579 got_worktree_histedit_skip_commit(struct got_worktree *worktree,
7580 struct got_object_id *commit_id, struct got_repository *repo)
7582 const struct got_error *err;
7583 char *commit_ref_name;
7585 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
7589 err = store_commit_id(commit_ref_name, commit_id, 0, repo);
7593 err = delete_ref(commit_ref_name, repo);
7595 free(commit_ref_name);
7599 const struct got_error *
7600 got_worktree_integrate_prepare(struct got_fileindex **fileindex,
7601 struct got_reference **branch_ref, struct got_reference **base_branch_ref,
7602 struct got_worktree *worktree, const char *refname,
7603 struct got_repository *repo)
7605 const struct got_error *err = NULL;
7606 char *fileindex_path = NULL;
7607 struct check_rebase_ok_arg ok_arg;
7611 *base_branch_ref = NULL;
7613 err = lock_worktree(worktree, LOCK_EX);
7617 if (strcmp(refname, got_worktree_get_head_ref_name(worktree)) == 0) {
7618 err = got_error_msg(GOT_ERR_SAME_BRANCH,
7619 "cannot integrate a branch into itself; "
7620 "update -b or different branch name required");
7624 err = open_fileindex(fileindex, &fileindex_path, worktree);
7628 /* Preconditions are the same as for rebase. */
7629 ok_arg.worktree = worktree;
7631 err = got_fileindex_for_each_entry_safe(*fileindex, check_rebase_ok,
7636 err = got_ref_open(branch_ref, repo, refname, 1);
7640 err = got_ref_open(base_branch_ref, repo,
7641 got_worktree_get_head_ref_name(worktree), 1);
7645 got_ref_close(*branch_ref);
7648 if (*base_branch_ref) {
7649 got_ref_close(*base_branch_ref);
7650 *base_branch_ref = NULL;
7653 got_fileindex_free(*fileindex);
7656 lock_worktree(worktree, LOCK_SH);
7661 const struct got_error *
7662 got_worktree_integrate_continue(struct got_worktree *worktree,
7663 struct got_fileindex *fileindex, struct got_repository *repo,
7664 struct got_reference *branch_ref, struct got_reference *base_branch_ref,
7665 got_worktree_checkout_cb progress_cb, void *progress_arg,
7666 got_cancel_cb cancel_cb, void *cancel_arg)
7668 const struct got_error *err = NULL, *sync_err, *unlockerr;
7669 char *fileindex_path = NULL;
7670 struct got_object_id *tree_id = NULL, *commit_id = NULL;
7671 struct got_commit_object *commit = NULL;
7673 err = get_fileindex_path(&fileindex_path, worktree);
7677 err = got_ref_resolve(&commit_id, repo, branch_ref);
7681 err = got_object_open_as_commit(&commit, repo, commit_id);
7685 err = got_object_id_by_path(&tree_id, repo, commit,
7686 worktree->path_prefix);
7690 err = got_worktree_set_base_commit_id(worktree, repo, commit_id);
7694 err = checkout_files(worktree, fileindex, "", tree_id, NULL, repo,
7695 progress_cb, progress_arg, cancel_cb, cancel_arg);
7699 err = got_ref_change_ref(base_branch_ref, commit_id);
7703 err = got_ref_write(base_branch_ref, repo);
7707 err = bump_base_commit_id_everywhere(worktree, fileindex, NULL, NULL);
7709 sync_err = sync_fileindex(fileindex, fileindex_path);
7710 if (sync_err && err == NULL)
7714 unlockerr = got_ref_unlock(branch_ref);
7715 if (unlockerr && err == NULL)
7717 got_ref_close(branch_ref);
7719 unlockerr = got_ref_unlock(base_branch_ref);
7720 if (unlockerr && err == NULL)
7722 got_ref_close(base_branch_ref);
7724 got_fileindex_free(fileindex);
7725 free(fileindex_path);
7728 got_object_commit_close(commit);
7730 unlockerr = lock_worktree(worktree, LOCK_SH);
7731 if (unlockerr && err == NULL)
7736 const struct got_error *
7737 got_worktree_integrate_abort(struct got_worktree *worktree,
7738 struct got_fileindex *fileindex, struct got_repository *repo,
7739 struct got_reference *branch_ref, struct got_reference *base_branch_ref)
7741 const struct got_error *err = NULL, *unlockerr = NULL;
7743 got_fileindex_free(fileindex);
7745 err = lock_worktree(worktree, LOCK_SH);
7747 unlockerr = got_ref_unlock(branch_ref);
7748 if (unlockerr && err == NULL)
7750 got_ref_close(branch_ref);
7752 unlockerr = got_ref_unlock(base_branch_ref);
7753 if (unlockerr && err == NULL)
7755 got_ref_close(base_branch_ref);
7760 const struct got_error *
7761 got_worktree_merge_postpone(struct got_worktree *worktree,
7762 struct got_fileindex *fileindex)
7764 const struct got_error *err, *sync_err;
7765 char *fileindex_path = NULL;
7767 err = get_fileindex_path(&fileindex_path, worktree);
7771 sync_err = sync_fileindex(fileindex, fileindex_path);
7773 err = lock_worktree(worktree, LOCK_SH);
7774 if (sync_err && err == NULL)
7777 got_fileindex_free(fileindex);
7778 free(fileindex_path);
7782 static const struct got_error *
7783 delete_merge_refs(struct got_worktree *worktree, struct got_repository *repo)
7785 const struct got_error *err;
7786 char *branch_refname = NULL, *commit_refname = NULL;
7788 err = get_merge_branch_ref_name(&branch_refname, worktree);
7791 err = delete_ref(branch_refname, repo);
7795 err = get_merge_commit_ref_name(&commit_refname, worktree);
7798 err = delete_ref(commit_refname, repo);
7803 free(branch_refname);
7804 free(commit_refname);
7808 struct merge_commit_msg_arg {
7809 struct got_worktree *worktree;
7810 const char *branch_name;
7813 static const struct got_error *
7814 merge_commit_msg_cb(struct got_pathlist_head *commitable_paths,
7815 const char *diff_path, char **logmsg, void *arg)
7817 struct merge_commit_msg_arg *a = arg;
7819 if (asprintf(logmsg, "merge %s into %s\n", a->branch_name,
7820 got_worktree_get_head_ref_name(a->worktree)) == -1)
7821 return got_error_from_errno("asprintf");
7827 const struct got_error *
7828 got_worktree_merge_branch(struct got_worktree *worktree,
7829 struct got_fileindex *fileindex,
7830 struct got_object_id *yca_commit_id,
7831 struct got_object_id *branch_tip,
7832 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
7833 void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
7835 const struct got_error *err;
7836 char *fileindex_path = NULL;
7838 err = get_fileindex_path(&fileindex_path, worktree);
7842 err = got_fileindex_for_each_entry_safe(fileindex, check_mixed_commits,
7847 err = merge_files(worktree, fileindex, fileindex_path, yca_commit_id,
7848 branch_tip, repo, progress_cb, progress_arg,
7849 cancel_cb, cancel_arg);
7851 free(fileindex_path);
7855 const struct got_error *
7856 got_worktree_merge_commit(struct got_object_id **new_commit_id,
7857 struct got_worktree *worktree, struct got_fileindex *fileindex,
7858 const char *author, const char *committer, int allow_bad_symlinks,
7859 struct got_object_id *branch_tip, const char *branch_name,
7860 struct got_repository *repo,
7861 got_worktree_status_cb status_cb, void *status_arg)
7864 const struct got_error *err = NULL, *sync_err;
7865 struct got_pathlist_head commitable_paths;
7866 struct collect_commitables_arg cc_arg;
7867 struct got_pathlist_entry *pe;
7868 struct got_reference *head_ref = NULL;
7869 struct got_object_id *head_commit_id = NULL;
7870 int have_staged_files = 0;
7871 struct merge_commit_msg_arg mcm_arg;
7872 char *fileindex_path = NULL;
7874 memset(&cc_arg, 0, sizeof(cc_arg));
7875 *new_commit_id = NULL;
7877 TAILQ_INIT(&commitable_paths);
7879 err = get_fileindex_path(&fileindex_path, worktree);
7883 err = got_ref_open(&head_ref, repo, worktree->head_ref_name, 0);
7887 err = got_ref_resolve(&head_commit_id, repo, head_ref);
7891 err = got_fileindex_for_each_entry_safe(fileindex, check_staged_file,
7892 &have_staged_files);
7893 if (err && err->code != GOT_ERR_CANCELLED)
7895 if (have_staged_files) {
7896 err = got_error(GOT_ERR_MERGE_STAGED_PATHS);
7900 cc_arg.commitable_paths = &commitable_paths;
7901 cc_arg.worktree = worktree;
7902 cc_arg.fileindex = fileindex;
7904 cc_arg.have_staged_files = have_staged_files;
7905 cc_arg.allow_bad_symlinks = allow_bad_symlinks;
7906 err = worktree_status(worktree, "", fileindex, repo,
7907 collect_commitables, &cc_arg, NULL, NULL, 1, 0);
7911 if (TAILQ_EMPTY(&commitable_paths)) {
7912 err = got_error_fmt(GOT_ERR_COMMIT_NO_CHANGES,
7913 "merge of %s cannot proceed", branch_name);
7917 TAILQ_FOREACH(pe, &commitable_paths, entry) {
7918 struct got_commitable *ct = pe->data;
7919 const char *ct_path = ct->in_repo_path;
7921 while (ct_path[0] == '/')
7923 err = check_out_of_date(ct_path, ct->status,
7924 ct->staged_status, ct->base_blob_id, ct->base_commit_id,
7925 head_commit_id, repo, GOT_ERR_MERGE_COMMIT_OUT_OF_DATE);
7931 mcm_arg.worktree = worktree;
7932 mcm_arg.branch_name = branch_name;
7933 err = commit_worktree(new_commit_id, &commitable_paths,
7934 head_commit_id, branch_tip, worktree, author, committer, NULL,
7935 merge_commit_msg_cb, &mcm_arg, status_cb, status_arg, repo);
7939 err = update_fileindex_after_commit(worktree, &commitable_paths,
7940 *new_commit_id, fileindex, have_staged_files);
7941 sync_err = sync_fileindex(fileindex, fileindex_path);
7942 if (sync_err && err == NULL)
7945 TAILQ_FOREACH(pe, &commitable_paths, entry) {
7946 struct got_commitable *ct = pe->data;
7947 free_commitable(ct);
7949 got_pathlist_free(&commitable_paths);
7950 free(fileindex_path);
7954 const struct got_error *
7955 got_worktree_merge_complete(struct got_worktree *worktree,
7956 struct got_fileindex *fileindex, struct got_repository *repo)
7958 const struct got_error *err, *unlockerr, *sync_err;
7959 char *fileindex_path = NULL;
7961 err = delete_merge_refs(worktree, repo);
7965 err = get_fileindex_path(&fileindex_path, worktree);
7968 err = bump_base_commit_id_everywhere(worktree, fileindex, NULL, NULL);
7969 sync_err = sync_fileindex(fileindex, fileindex_path);
7970 if (sync_err && err == NULL)
7973 got_fileindex_free(fileindex);
7974 free(fileindex_path);
7975 unlockerr = lock_worktree(worktree, LOCK_SH);
7976 if (unlockerr && err == NULL)
7981 const struct got_error *
7982 got_worktree_merge_in_progress(int *in_progress, struct got_worktree *worktree,
7983 struct got_repository *repo)
7985 const struct got_error *err;
7986 char *branch_refname = NULL;
7987 struct got_reference *branch_ref = NULL;
7991 err = get_merge_branch_ref_name(&branch_refname, worktree);
7994 err = got_ref_open(&branch_ref, repo, branch_refname, 0);
7995 free(branch_refname);
7997 if (err->code != GOT_ERR_NOT_REF)
8005 const struct got_error *got_worktree_merge_prepare(
8006 struct got_fileindex **fileindex, struct got_worktree *worktree,
8007 struct got_reference *branch, struct got_repository *repo)
8009 const struct got_error *err = NULL;
8010 char *fileindex_path = NULL;
8011 char *branch_refname = NULL, *commit_refname = NULL;
8012 struct got_reference *wt_branch = NULL, *branch_ref = NULL;
8013 struct got_reference *commit_ref = NULL;
8014 struct got_object_id *branch_tip = NULL, *wt_branch_tip = NULL;
8015 struct check_rebase_ok_arg ok_arg;
8019 err = lock_worktree(worktree, LOCK_EX);
8023 err = open_fileindex(fileindex, &fileindex_path, worktree);
8027 /* Preconditions are the same as for rebase. */
8028 ok_arg.worktree = worktree;
8030 err = got_fileindex_for_each_entry_safe(*fileindex, check_rebase_ok,
8035 err = get_merge_branch_ref_name(&branch_refname, worktree);
8039 err = get_merge_commit_ref_name(&commit_refname, worktree);
8043 err = got_ref_open(&wt_branch, repo, worktree->head_ref_name,
8048 err = got_ref_resolve(&wt_branch_tip, repo, wt_branch);
8052 if (got_object_id_cmp(worktree->base_commit_id, wt_branch_tip) != 0) {
8053 err = got_error(GOT_ERR_MERGE_OUT_OF_DATE);
8057 err = got_ref_resolve(&branch_tip, repo, branch);
8061 err = got_ref_alloc_symref(&branch_ref, branch_refname, branch);
8064 err = got_ref_write(branch_ref, repo);
8068 err = got_ref_alloc(&commit_ref, commit_refname, branch_tip);
8071 err = got_ref_write(commit_ref, repo);
8076 free(branch_refname);
8077 free(commit_refname);
8078 free(fileindex_path);
8080 got_ref_close(branch_ref);
8082 got_ref_close(commit_ref);
8084 got_ref_close(wt_branch);
8085 free(wt_branch_tip);
8088 got_fileindex_free(*fileindex);
8091 lock_worktree(worktree, LOCK_SH);
8096 const struct got_error *
8097 got_worktree_merge_continue(char **branch_name,
8098 struct got_object_id **branch_tip, struct got_fileindex **fileindex,
8099 struct got_worktree *worktree, struct got_repository *repo)
8101 const struct got_error *err;
8102 char *commit_refname = NULL, *branch_refname = NULL;
8103 struct got_reference *commit_ref = NULL, *branch_ref = NULL;
8104 char *fileindex_path = NULL;
8105 int have_staged_files = 0;
8107 *branch_name = NULL;
8111 err = lock_worktree(worktree, LOCK_EX);
8115 err = open_fileindex(fileindex, &fileindex_path, worktree);
8119 err = got_fileindex_for_each_entry_safe(*fileindex, check_staged_file,
8120 &have_staged_files);
8121 if (err && err->code != GOT_ERR_CANCELLED)
8123 if (have_staged_files) {
8124 err = got_error(GOT_ERR_STAGED_PATHS);
8128 err = get_merge_branch_ref_name(&branch_refname, worktree);
8132 err = get_merge_commit_ref_name(&commit_refname, worktree);
8136 err = got_ref_open(&branch_ref, repo, branch_refname, 0);
8140 if (!got_ref_is_symbolic(branch_ref)) {
8141 err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
8142 "%s is not a symbolic reference",
8143 got_ref_get_name(branch_ref));
8146 *branch_name = strdup(got_ref_get_symref_target(branch_ref));
8147 if (*branch_name == NULL) {
8148 err = got_error_from_errno("strdup");
8152 err = got_ref_open(&commit_ref, repo, commit_refname, 0);
8156 err = got_ref_resolve(branch_tip, repo, commit_ref);
8160 free(commit_refname);
8161 free(branch_refname);
8162 free(fileindex_path);
8164 got_ref_close(commit_ref);
8166 got_ref_close(branch_ref);
8170 *branch_name = NULL;
8175 got_fileindex_free(*fileindex);
8178 lock_worktree(worktree, LOCK_SH);
8183 const struct got_error *
8184 got_worktree_merge_abort(struct got_worktree *worktree,
8185 struct got_fileindex *fileindex, struct got_repository *repo,
8186 got_worktree_checkout_cb progress_cb, void *progress_arg)
8188 const struct got_error *err, *unlockerr, *sync_err;
8189 struct got_object_id *commit_id = NULL;
8190 struct got_commit_object *commit = NULL;
8191 char *fileindex_path = NULL;
8192 struct revert_file_args rfa;
8193 struct got_object_id *tree_id = NULL;
8195 err = got_object_open_as_commit(&commit, repo,
8196 worktree->base_commit_id);
8200 err = got_object_id_by_path(&tree_id, repo, commit,
8201 worktree->path_prefix);
8205 err = delete_merge_refs(worktree, repo);
8209 err = get_fileindex_path(&fileindex_path, worktree);
8213 rfa.worktree = worktree;
8214 rfa.fileindex = fileindex;
8215 rfa.progress_cb = progress_cb;
8216 rfa.progress_arg = progress_arg;
8217 rfa.patch_cb = NULL;
8218 rfa.patch_arg = NULL;
8220 rfa.unlink_added_files = 1;
8221 err = worktree_status(worktree, "", fileindex, repo,
8222 revert_file, &rfa, NULL, NULL, 1, 0);
8226 err = checkout_files(worktree, fileindex, "", tree_id, NULL,
8227 repo, progress_cb, progress_arg, NULL, NULL);
8229 sync_err = sync_fileindex(fileindex, fileindex_path);
8230 if (sync_err && err == NULL)
8236 got_object_commit_close(commit);
8238 got_fileindex_free(fileindex);
8239 free(fileindex_path);
8241 unlockerr = lock_worktree(worktree, LOCK_SH);
8242 if (unlockerr && err == NULL)
8247 struct check_stage_ok_arg {
8248 struct got_object_id *head_commit_id;
8249 struct got_worktree *worktree;
8250 struct got_fileindex *fileindex;
8251 struct got_repository *repo;
8255 static const struct got_error *
8256 check_stage_ok(void *arg, unsigned char status,
8257 unsigned char staged_status, const char *relpath,
8258 struct got_object_id *blob_id, struct got_object_id *staged_blob_id,
8259 struct got_object_id *commit_id, int dirfd, const char *de_name)
8261 struct check_stage_ok_arg *a = arg;
8262 const struct got_error *err = NULL;
8263 struct got_fileindex_entry *ie;
8264 struct got_object_id base_commit_id;
8265 struct got_object_id *base_commit_idp = NULL;
8266 char *in_repo_path = NULL, *p;
8268 if (status == GOT_STATUS_UNVERSIONED ||
8269 status == GOT_STATUS_NO_CHANGE)
8271 if (status == GOT_STATUS_NONEXISTENT)
8272 return got_error_set_errno(ENOENT, relpath);
8274 ie = got_fileindex_entry_get(a->fileindex, relpath, strlen(relpath));
8276 return got_error_path(relpath, GOT_ERR_FILE_STATUS);
8278 if (asprintf(&in_repo_path, "%s%s%s", a->worktree->path_prefix,
8279 got_path_is_root_dir(a->worktree->path_prefix) ? "" : "/",
8281 return got_error_from_errno("asprintf");
8283 if (got_fileindex_entry_has_commit(ie)) {
8284 memcpy(base_commit_id.sha1, ie->commit_sha1,
8285 SHA1_DIGEST_LENGTH);
8286 base_commit_idp = &base_commit_id;
8289 if (status == GOT_STATUS_CONFLICT) {
8290 err = got_error_path(ie->path, GOT_ERR_STAGE_CONFLICT);
8292 } else if (status != GOT_STATUS_ADD &&
8293 status != GOT_STATUS_MODIFY &&
8294 status != GOT_STATUS_DELETE) {
8295 err = got_error_path(ie->path, GOT_ERR_FILE_STATUS);
8299 a->have_changes = 1;
8304 err = check_out_of_date(p, status, staged_status,
8305 blob_id, base_commit_idp, a->head_commit_id, a->repo,
8306 GOT_ERR_STAGE_OUT_OF_DATE);
8312 struct stage_path_arg {
8313 struct got_worktree *worktree;
8314 struct got_fileindex *fileindex;
8315 struct got_repository *repo;
8316 got_worktree_status_cb status_cb;
8318 got_worktree_patch_cb patch_cb;
8320 int staged_something;
8321 int allow_bad_symlinks;
8324 static const struct got_error *
8325 stage_path(void *arg, unsigned char status,
8326 unsigned char staged_status, const char *relpath,
8327 struct got_object_id *blob_id, struct got_object_id *staged_blob_id,
8328 struct got_object_id *commit_id, int dirfd, const char *de_name)
8330 struct stage_path_arg *a = arg;
8331 const struct got_error *err = NULL;
8332 struct got_fileindex_entry *ie;
8333 char *ondisk_path = NULL, *path_content = NULL;
8335 struct got_object_id *new_staged_blob_id = NULL;
8338 if (status == GOT_STATUS_UNVERSIONED)
8341 ie = got_fileindex_entry_get(a->fileindex, relpath, strlen(relpath));
8343 return got_error_path(relpath, GOT_ERR_FILE_STATUS);
8345 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
8347 return got_error_from_errno("asprintf");
8350 case GOT_STATUS_ADD:
8351 case GOT_STATUS_MODIFY:
8352 /* XXX could sb.st_mode be passed in by our caller? */
8353 if (lstat(ondisk_path, &sb) == -1) {
8354 err = got_error_from_errno2("lstat", ondisk_path);
8358 if (status == GOT_STATUS_ADD) {
8359 int choice = GOT_PATCH_CHOICE_NONE;
8360 err = (*a->patch_cb)(&choice, a->patch_arg,
8361 status, ie->path, NULL, 1, 1);
8364 if (choice != GOT_PATCH_CHOICE_YES)
8367 err = create_patched_content(&path_content, 0,
8368 staged_blob_id ? staged_blob_id : blob_id,
8369 ondisk_path, dirfd, de_name, ie->path,
8370 a->repo, a->patch_cb, a->patch_arg);
8371 if (err || path_content == NULL)
8375 err = got_object_blob_create(&new_staged_blob_id,
8376 path_content ? path_content : ondisk_path, a->repo);
8379 memcpy(ie->staged_blob_sha1, new_staged_blob_id->sha1,
8380 SHA1_DIGEST_LENGTH);
8381 if (status == GOT_STATUS_ADD || staged_status == GOT_STATUS_ADD)
8382 stage = GOT_FILEIDX_STAGE_ADD;
8384 stage = GOT_FILEIDX_STAGE_MODIFY;
8385 got_fileindex_entry_stage_set(ie, stage);
8386 if (S_ISLNK(sb.st_mode)) {
8387 int is_bad_symlink = 0;
8388 if (!a->allow_bad_symlinks) {
8389 char target_path[PATH_MAX];
8391 target_len = readlink(ondisk_path, target_path,
8392 sizeof(target_path));
8393 if (target_len == -1) {
8394 err = got_error_from_errno2("readlink",
8398 err = is_bad_symlink_target(&is_bad_symlink,
8399 target_path, target_len, ondisk_path,
8400 a->worktree->root_path);
8403 if (is_bad_symlink) {
8404 err = got_error_path(ondisk_path,
8405 GOT_ERR_BAD_SYMLINK);
8410 got_fileindex_entry_staged_filetype_set(ie,
8411 GOT_FILEIDX_MODE_BAD_SYMLINK);
8413 got_fileindex_entry_staged_filetype_set(ie,
8414 GOT_FILEIDX_MODE_SYMLINK);
8416 got_fileindex_entry_staged_filetype_set(ie,
8417 GOT_FILEIDX_MODE_REGULAR_FILE);
8419 a->staged_something = 1;
8420 if (a->status_cb == NULL)
8422 err = (*a->status_cb)(a->status_arg, GOT_STATUS_NO_CHANGE,
8423 get_staged_status(ie), relpath, blob_id,
8424 new_staged_blob_id, NULL, dirfd, de_name);
8428 * When staging the reverse of the staged diff,
8429 * implicitly unstage the file.
8431 if (memcmp(ie->staged_blob_sha1, ie->blob_sha1,
8432 sizeof(ie->blob_sha1)) == 0) {
8433 got_fileindex_entry_stage_set(ie,
8434 GOT_FILEIDX_STAGE_NONE);
8437 case GOT_STATUS_DELETE:
8438 if (staged_status == GOT_STATUS_DELETE)
8441 int choice = GOT_PATCH_CHOICE_NONE;
8442 err = (*a->patch_cb)(&choice, a->patch_arg, status,
8443 ie->path, NULL, 1, 1);
8446 if (choice == GOT_PATCH_CHOICE_NO)
8448 if (choice != GOT_PATCH_CHOICE_YES) {
8449 err = got_error(GOT_ERR_PATCH_CHOICE);
8453 stage = GOT_FILEIDX_STAGE_DELETE;
8454 got_fileindex_entry_stage_set(ie, stage);
8455 a->staged_something = 1;
8456 if (a->status_cb == NULL)
8458 err = (*a->status_cb)(a->status_arg, GOT_STATUS_NO_CHANGE,
8459 get_staged_status(ie), relpath, NULL, NULL, NULL, dirfd,
8462 case GOT_STATUS_NO_CHANGE:
8464 case GOT_STATUS_CONFLICT:
8465 err = got_error_path(relpath, GOT_ERR_STAGE_CONFLICT);
8467 case GOT_STATUS_NONEXISTENT:
8468 err = got_error_set_errno(ENOENT, relpath);
8471 err = got_error_path(relpath, GOT_ERR_FILE_STATUS);
8475 if (path_content && unlink(path_content) == -1 && err == NULL)
8476 err = got_error_from_errno2("unlink", path_content);
8479 free(new_staged_blob_id);
8483 const struct got_error *
8484 got_worktree_stage(struct got_worktree *worktree,
8485 struct got_pathlist_head *paths,
8486 got_worktree_status_cb status_cb, void *status_arg,
8487 got_worktree_patch_cb patch_cb, void *patch_arg,
8488 int allow_bad_symlinks, struct got_repository *repo)
8490 const struct got_error *err = NULL, *sync_err, *unlockerr;
8491 struct got_pathlist_entry *pe;
8492 struct got_fileindex *fileindex = NULL;
8493 char *fileindex_path = NULL;
8494 struct got_reference *head_ref = NULL;
8495 struct got_object_id *head_commit_id = NULL;
8496 struct check_stage_ok_arg oka;
8497 struct stage_path_arg spa;
8499 err = lock_worktree(worktree, LOCK_EX);
8503 err = got_ref_open(&head_ref, repo,
8504 got_worktree_get_head_ref_name(worktree), 0);
8507 err = got_ref_resolve(&head_commit_id, repo, head_ref);
8510 err = open_fileindex(&fileindex, &fileindex_path, worktree);
8514 /* Check pre-conditions before staging anything. */
8515 oka.head_commit_id = head_commit_id;
8516 oka.worktree = worktree;
8517 oka.fileindex = fileindex;
8519 oka.have_changes = 0;
8520 TAILQ_FOREACH(pe, paths, entry) {
8521 err = worktree_status(worktree, pe->path, fileindex, repo,
8522 check_stage_ok, &oka, NULL, NULL, 1, 0);
8526 if (!oka.have_changes) {
8527 err = got_error(GOT_ERR_STAGE_NO_CHANGE);
8531 spa.worktree = worktree;
8532 spa.fileindex = fileindex;
8534 spa.patch_cb = patch_cb;
8535 spa.patch_arg = patch_arg;
8536 spa.status_cb = status_cb;
8537 spa.status_arg = status_arg;
8538 spa.staged_something = 0;
8539 spa.allow_bad_symlinks = allow_bad_symlinks;
8540 TAILQ_FOREACH(pe, paths, entry) {
8541 err = worktree_status(worktree, pe->path, fileindex, repo,
8542 stage_path, &spa, NULL, NULL, 1, 0);
8546 if (!spa.staged_something) {
8547 err = got_error(GOT_ERR_STAGE_NO_CHANGE);
8551 sync_err = sync_fileindex(fileindex, fileindex_path);
8552 if (sync_err && err == NULL)
8556 got_ref_close(head_ref);
8557 free(head_commit_id);
8558 free(fileindex_path);
8560 got_fileindex_free(fileindex);
8561 unlockerr = lock_worktree(worktree, LOCK_SH);
8562 if (unlockerr && err == NULL)
8567 struct unstage_path_arg {
8568 struct got_worktree *worktree;
8569 struct got_fileindex *fileindex;
8570 struct got_repository *repo;
8571 got_worktree_checkout_cb progress_cb;
8573 got_worktree_patch_cb patch_cb;
8577 static const struct got_error *
8578 create_unstaged_content(char **path_unstaged_content,
8579 char **path_new_staged_content, struct got_object_id *blob_id,
8580 struct got_object_id *staged_blob_id, const char *relpath,
8581 struct got_repository *repo,
8582 got_worktree_patch_cb patch_cb, void *patch_arg)
8584 const struct got_error *err, *free_err;
8585 struct got_blob_object *blob = NULL, *staged_blob = NULL;
8586 FILE *f1 = NULL, *f2 = NULL, *outfile = NULL, *rejectfile = NULL;
8587 char *path1 = NULL, *path2 = NULL, *label1 = NULL;
8588 struct got_diffreg_result *diffreg_result = NULL;
8589 int line_cur1 = 1, line_cur2 = 1, n = 0, nchunks_used = 0;
8590 int have_content = 0, have_rejected_content = 0, i = 0, nchanges = 0;
8591 int fd1 = -1, fd2 = -1;
8593 *path_unstaged_content = NULL;
8594 *path_new_staged_content = NULL;
8596 err = got_object_id_str(&label1, blob_id);
8600 fd1 = got_opentempfd();
8602 err = got_error_from_errno("got_opentempfd");
8605 fd2 = got_opentempfd();
8607 err = got_error_from_errno("got_opentempfd");
8611 err = got_object_open_as_blob(&blob, repo, blob_id, 8192, fd1);
8615 err = got_opentemp_named(&path1, &f1, "got-unstage-blob-base", "");
8619 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f1, blob);
8623 err = got_object_open_as_blob(&staged_blob, repo, staged_blob_id, 8192,
8628 err = got_opentemp_named(&path2, &f2, "got-unstage-blob-staged", "");
8632 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f2, staged_blob);
8636 err = got_diff_files(&diffreg_result, f1, 1, label1, f2, 1,
8637 path2, 3, 0, 1, NULL, GOT_DIFF_ALGORITHM_MYERS);
8641 err = got_opentemp_named(path_unstaged_content, &outfile,
8642 "got-unstaged-content", "");
8645 err = got_opentemp_named(path_new_staged_content, &rejectfile,
8646 "got-new-staged-content", "");
8650 if (fseek(f1, 0L, SEEK_SET) == -1) {
8651 err = got_ferror(f1, GOT_ERR_IO);
8654 if (fseek(f2, 0L, SEEK_SET) == -1) {
8655 err = got_ferror(f2, GOT_ERR_IO);
8658 /* Count the number of actual changes in the diff result. */
8659 for (n = 0; n < diffreg_result->result->chunks.len; n += nchunks_used) {
8660 struct diff_chunk_context cc = {};
8661 diff_chunk_context_load_change(&cc, &nchunks_used,
8662 diffreg_result->result, n, 0);
8665 for (n = 0; n < diffreg_result->result->chunks.len; n += nchunks_used) {
8667 err = apply_or_reject_change(&choice, &nchunks_used,
8668 diffreg_result->result, n, relpath, f1, f2,
8669 &line_cur1, &line_cur2,
8670 outfile, rejectfile, ++i, nchanges, patch_cb, patch_arg);
8673 if (choice == GOT_PATCH_CHOICE_YES)
8676 have_rejected_content = 1;
8677 if (choice == GOT_PATCH_CHOICE_QUIT)
8680 if (have_content || have_rejected_content)
8681 err = copy_remaining_content(f1, f2, &line_cur1, &line_cur2,
8682 outfile, rejectfile);
8685 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
8686 err = got_error_from_errno("close");
8688 got_object_blob_close(blob);
8689 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
8690 err = got_error_from_errno("close");
8692 got_object_blob_close(staged_blob);
8693 free_err = got_diffreg_result_free(diffreg_result);
8694 if (free_err && err == NULL)
8696 if (f1 && fclose(f1) == EOF && err == NULL)
8697 err = got_error_from_errno2("fclose", path1);
8698 if (f2 && fclose(f2) == EOF && err == NULL)
8699 err = got_error_from_errno2("fclose", path2);
8700 if (outfile && fclose(outfile) == EOF && err == NULL)
8701 err = got_error_from_errno2("fclose", *path_unstaged_content);
8702 if (rejectfile && fclose(rejectfile) == EOF && err == NULL)
8703 err = got_error_from_errno2("fclose", *path_new_staged_content);
8704 if (path1 && unlink(path1) == -1 && err == NULL)
8705 err = got_error_from_errno2("unlink", path1);
8706 if (path2 && unlink(path2) == -1 && err == NULL)
8707 err = got_error_from_errno2("unlink", path2);
8708 if (err || !have_content) {
8709 if (*path_unstaged_content &&
8710 unlink(*path_unstaged_content) == -1 && err == NULL)
8711 err = got_error_from_errno2("unlink",
8712 *path_unstaged_content);
8713 free(*path_unstaged_content);
8714 *path_unstaged_content = NULL;
8716 if (err || !have_content || !have_rejected_content) {
8717 if (*path_new_staged_content &&
8718 unlink(*path_new_staged_content) == -1 && err == NULL)
8719 err = got_error_from_errno2("unlink",
8720 *path_new_staged_content);
8721 free(*path_new_staged_content);
8722 *path_new_staged_content = NULL;
8729 static const struct got_error *
8730 unstage_hunks(struct got_object_id *staged_blob_id,
8731 struct got_blob_object *blob_base,
8732 struct got_object_id *blob_id, struct got_fileindex_entry *ie,
8733 const char *ondisk_path, const char *label_orig,
8734 struct got_worktree *worktree, struct got_repository *repo,
8735 got_worktree_patch_cb patch_cb, void *patch_arg,
8736 got_worktree_checkout_cb progress_cb, void *progress_arg)
8738 const struct got_error *err = NULL;
8739 char *path_unstaged_content = NULL;
8740 char *path_new_staged_content = NULL;
8741 char *parent = NULL, *base_path = NULL;
8742 char *blob_base_path = NULL;
8743 struct got_object_id *new_staged_blob_id = NULL;
8744 FILE *f = NULL, *f_base = NULL, *f_deriv2 = NULL;
8747 err = create_unstaged_content(&path_unstaged_content,
8748 &path_new_staged_content, blob_id, staged_blob_id,
8749 ie->path, repo, patch_cb, patch_arg);
8753 if (path_unstaged_content == NULL)
8756 if (path_new_staged_content) {
8757 err = got_object_blob_create(&new_staged_blob_id,
8758 path_new_staged_content, repo);
8763 f = fopen(path_unstaged_content, "re");
8765 err = got_error_from_errno2("fopen",
8766 path_unstaged_content);
8769 if (fstat(fileno(f), &sb) == -1) {
8770 err = got_error_from_errno2("fstat", path_unstaged_content);
8773 if (got_fileindex_entry_staged_filetype_get(ie) ==
8774 GOT_FILEIDX_MODE_SYMLINK && sb.st_size < PATH_MAX) {
8775 char link_target[PATH_MAX];
8777 r = fread(link_target, 1, sizeof(link_target), f);
8778 if (r == 0 && ferror(f)) {
8779 err = got_error_from_errno("fread");
8782 if (r >= sizeof(link_target)) { /* should not happen */
8783 err = got_error(GOT_ERR_NO_SPACE);
8786 link_target[r] = '\0';
8787 err = merge_symlink(worktree, blob_base,
8788 ondisk_path, ie->path, label_orig, link_target,
8789 worktree->base_commit_id, repo, progress_cb,
8792 int local_changes_subsumed;
8794 err = got_path_dirname(&parent, ondisk_path);
8798 if (asprintf(&base_path, "%s/got-unstage-blob-orig",
8800 err = got_error_from_errno("asprintf");
8805 err = got_opentemp_named(&blob_base_path, &f_base,
8809 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f_base,
8815 * In order the run a 3-way merge with a symlink we copy the symlink's
8816 * target path into a temporary file and use that file with diff3.
8818 if (S_ISLNK(got_fileindex_perms_to_st(ie))) {
8819 err = dump_symlink_target_path_to_file(&f_deriv2,
8825 fd = open(ondisk_path,
8826 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
8828 err = got_error_from_errno2("open", ondisk_path);
8831 f_deriv2 = fdopen(fd, "r");
8832 if (f_deriv2 == NULL) {
8833 err = got_error_from_errno2("fdopen", ondisk_path);
8839 err = merge_file(&local_changes_subsumed, worktree,
8840 f_base, f, f_deriv2, ondisk_path, ie->path,
8841 got_fileindex_perms_to_st(ie),
8842 label_orig, "unstaged", NULL, GOT_DIFF_ALGORITHM_MYERS,
8843 repo, progress_cb, progress_arg);
8848 if (new_staged_blob_id) {
8849 memcpy(ie->staged_blob_sha1, new_staged_blob_id->sha1,
8850 SHA1_DIGEST_LENGTH);
8852 got_fileindex_entry_stage_set(ie, GOT_FILEIDX_STAGE_NONE);
8853 got_fileindex_entry_staged_filetype_set(ie, 0);
8856 free(new_staged_blob_id);
8857 if (path_unstaged_content &&
8858 unlink(path_unstaged_content) == -1 && err == NULL)
8859 err = got_error_from_errno2("unlink", path_unstaged_content);
8860 if (path_new_staged_content &&
8861 unlink(path_new_staged_content) == -1 && err == NULL)
8862 err = got_error_from_errno2("unlink", path_new_staged_content);
8863 if (blob_base_path && unlink(blob_base_path) == -1 && err == NULL)
8864 err = got_error_from_errno2("unlink", blob_base_path);
8865 if (f_base && fclose(f_base) == EOF && err == NULL)
8866 err = got_error_from_errno2("fclose", path_unstaged_content);
8867 if (f && fclose(f) == EOF && err == NULL)
8868 err = got_error_from_errno2("fclose", path_unstaged_content);
8869 if (f_deriv2 && fclose(f_deriv2) == EOF && err == NULL)
8870 err = got_error_from_errno2("fclose", ondisk_path);
8871 free(path_unstaged_content);
8872 free(path_new_staged_content);
8873 free(blob_base_path);
8879 static const struct got_error *
8880 unstage_path(void *arg, unsigned char status,
8881 unsigned char staged_status, const char *relpath,
8882 struct got_object_id *blob_id, struct got_object_id *staged_blob_id,
8883 struct got_object_id *commit_id, int dirfd, const char *de_name)
8885 const struct got_error *err = NULL;
8886 struct unstage_path_arg *a = arg;
8887 struct got_fileindex_entry *ie;
8888 struct got_blob_object *blob_base = NULL, *blob_staged = NULL;
8889 char *ondisk_path = NULL;
8890 char *id_str = NULL, *label_orig = NULL;
8891 int local_changes_subsumed;
8893 int fd1 = -1, fd2 = -1;
8895 if (staged_status != GOT_STATUS_ADD &&
8896 staged_status != GOT_STATUS_MODIFY &&
8897 staged_status != GOT_STATUS_DELETE)
8900 ie = got_fileindex_entry_get(a->fileindex, relpath, strlen(relpath));
8902 return got_error_path(relpath, GOT_ERR_FILE_STATUS);
8904 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path, relpath)
8906 return got_error_from_errno("asprintf");
8908 err = got_object_id_str(&id_str,
8909 commit_id ? commit_id : a->worktree->base_commit_id);
8912 if (asprintf(&label_orig, "%s: commit %s", GOT_MERGE_LABEL_BASE,
8914 err = got_error_from_errno("asprintf");
8918 fd1 = got_opentempfd();
8920 err = got_error_from_errno("got_opentempfd");
8923 fd2 = got_opentempfd();
8925 err = got_error_from_errno("got_opentempfd");
8929 switch (staged_status) {
8930 case GOT_STATUS_MODIFY:
8931 err = got_object_open_as_blob(&blob_base, a->repo,
8932 blob_id, 8192, fd1);
8936 case GOT_STATUS_ADD:
8938 if (staged_status == GOT_STATUS_ADD) {
8939 int choice = GOT_PATCH_CHOICE_NONE;
8940 err = (*a->patch_cb)(&choice, a->patch_arg,
8941 staged_status, ie->path, NULL, 1, 1);
8944 if (choice != GOT_PATCH_CHOICE_YES)
8947 err = unstage_hunks(staged_blob_id,
8948 blob_base, blob_id, ie, ondisk_path,
8949 label_orig, a->worktree, a->repo,
8950 a->patch_cb, a->patch_arg,
8951 a->progress_cb, a->progress_arg);
8952 break; /* Done with this file. */
8955 err = got_object_open_as_blob(&blob_staged, a->repo,
8956 staged_blob_id, 8192, fd2);
8959 switch (got_fileindex_entry_staged_filetype_get(ie)) {
8960 case GOT_FILEIDX_MODE_BAD_SYMLINK:
8961 case GOT_FILEIDX_MODE_REGULAR_FILE:
8962 err = merge_blob(&local_changes_subsumed, a->worktree,
8963 blob_base, ondisk_path, relpath,
8964 got_fileindex_perms_to_st(ie), label_orig,
8965 blob_staged, commit_id ? commit_id :
8966 a->worktree->base_commit_id, a->repo,
8967 a->progress_cb, a->progress_arg);
8969 case GOT_FILEIDX_MODE_SYMLINK:
8970 if (S_ISLNK(got_fileindex_perms_to_st(ie))) {
8971 char *staged_target;
8972 err = got_object_blob_read_to_str(
8973 &staged_target, blob_staged);
8976 err = merge_symlink(a->worktree, blob_base,
8977 ondisk_path, relpath, label_orig,
8978 staged_target, commit_id ? commit_id :
8979 a->worktree->base_commit_id,
8980 a->repo, a->progress_cb, a->progress_arg);
8981 free(staged_target);
8983 err = merge_blob(&local_changes_subsumed,
8984 a->worktree, blob_base, ondisk_path,
8985 relpath, got_fileindex_perms_to_st(ie),
8986 label_orig, blob_staged,
8987 commit_id ? commit_id :
8988 a->worktree->base_commit_id, a->repo,
8989 a->progress_cb, a->progress_arg);
8993 err = got_error_path(relpath, GOT_ERR_BAD_FILETYPE);
8997 got_fileindex_entry_stage_set(ie,
8998 GOT_FILEIDX_STAGE_NONE);
8999 got_fileindex_entry_staged_filetype_set(ie, 0);
9002 case GOT_STATUS_DELETE:
9004 int choice = GOT_PATCH_CHOICE_NONE;
9005 err = (*a->patch_cb)(&choice, a->patch_arg,
9006 staged_status, ie->path, NULL, 1, 1);
9009 if (choice == GOT_PATCH_CHOICE_NO)
9011 if (choice != GOT_PATCH_CHOICE_YES) {
9012 err = got_error(GOT_ERR_PATCH_CHOICE);
9016 got_fileindex_entry_stage_set(ie, GOT_FILEIDX_STAGE_NONE);
9017 got_fileindex_entry_staged_filetype_set(ie, 0);
9018 err = get_file_status(&status, &sb, ie, ondisk_path,
9019 dirfd, de_name, a->repo);
9022 err = (*a->progress_cb)(a->progress_arg, status, relpath);
9027 if (fd1 != -1 && close(fd1) == -1 && err == NULL)
9028 err = got_error_from_errno("close");
9030 got_object_blob_close(blob_base);
9031 if (fd2 != -1 && close(fd2) == -1 && err == NULL)
9032 err = got_error_from_errno("close");
9034 got_object_blob_close(blob_staged);
9040 const struct got_error *
9041 got_worktree_unstage(struct got_worktree *worktree,
9042 struct got_pathlist_head *paths,
9043 got_worktree_checkout_cb progress_cb, void *progress_arg,
9044 got_worktree_patch_cb patch_cb, void *patch_arg,
9045 struct got_repository *repo)
9047 const struct got_error *err = NULL, *sync_err, *unlockerr;
9048 struct got_pathlist_entry *pe;
9049 struct got_fileindex *fileindex = NULL;
9050 char *fileindex_path = NULL;
9051 struct unstage_path_arg upa;
9053 err = lock_worktree(worktree, LOCK_EX);
9057 err = open_fileindex(&fileindex, &fileindex_path, worktree);
9061 upa.worktree = worktree;
9062 upa.fileindex = fileindex;
9064 upa.progress_cb = progress_cb;
9065 upa.progress_arg = progress_arg;
9066 upa.patch_cb = patch_cb;
9067 upa.patch_arg = patch_arg;
9068 TAILQ_FOREACH(pe, paths, entry) {
9069 err = worktree_status(worktree, pe->path, fileindex, repo,
9070 unstage_path, &upa, NULL, NULL, 1, 0);
9075 sync_err = sync_fileindex(fileindex, fileindex_path);
9076 if (sync_err && err == NULL)
9079 free(fileindex_path);
9081 got_fileindex_free(fileindex);
9082 unlockerr = lock_worktree(worktree, LOCK_SH);
9083 if (unlockerr && err == NULL)
9088 struct report_file_info_arg {
9089 struct got_worktree *worktree;
9090 got_worktree_path_info_cb info_cb;
9092 struct got_pathlist_head *paths;
9093 got_cancel_cb cancel_cb;
9097 static const struct got_error *
9098 report_file_info(void *arg, struct got_fileindex_entry *ie)
9100 struct report_file_info_arg *a = arg;
9101 struct got_pathlist_entry *pe;
9102 struct got_object_id blob_id, staged_blob_id, commit_id;
9103 struct got_object_id *blob_idp = NULL, *staged_blob_idp = NULL;
9104 struct got_object_id *commit_idp = NULL;
9107 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
9108 return got_error(GOT_ERR_CANCELLED);
9110 TAILQ_FOREACH(pe, a->paths, entry) {
9111 if (pe->path_len == 0 || strcmp(pe->path, ie->path) == 0 ||
9112 got_path_is_child(ie->path, pe->path, pe->path_len))
9115 if (pe == NULL) /* not found */
9118 if (got_fileindex_entry_has_blob(ie)) {
9119 memcpy(blob_id.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
9120 blob_idp = &blob_id;
9122 stage = got_fileindex_entry_stage_get(ie);
9123 if (stage == GOT_FILEIDX_STAGE_MODIFY ||
9124 stage == GOT_FILEIDX_STAGE_ADD) {
9125 memcpy(staged_blob_id.sha1, ie->staged_blob_sha1,
9126 SHA1_DIGEST_LENGTH);
9127 staged_blob_idp = &staged_blob_id;
9130 if (got_fileindex_entry_has_commit(ie)) {
9131 memcpy(commit_id.sha1, ie->commit_sha1, SHA1_DIGEST_LENGTH);
9132 commit_idp = &commit_id;
9135 return a->info_cb(a->info_arg, ie->path, got_fileindex_perms_to_st(ie),
9136 (time_t)ie->mtime_sec, blob_idp, staged_blob_idp, commit_idp);
9139 const struct got_error *
9140 got_worktree_path_info(struct got_worktree *worktree,
9141 struct got_pathlist_head *paths,
9142 got_worktree_path_info_cb info_cb, void *info_arg,
9143 got_cancel_cb cancel_cb, void *cancel_arg)
9146 const struct got_error *err = NULL, *unlockerr;
9147 struct got_fileindex *fileindex = NULL;
9148 char *fileindex_path = NULL;
9149 struct report_file_info_arg arg;
9151 err = lock_worktree(worktree, LOCK_SH);
9155 err = open_fileindex(&fileindex, &fileindex_path, worktree);
9159 arg.worktree = worktree;
9160 arg.info_cb = info_cb;
9161 arg.info_arg = info_arg;
9163 arg.cancel_cb = cancel_cb;
9164 arg.cancel_arg = cancel_arg;
9165 err = got_fileindex_for_each_entry_safe(fileindex, report_file_info,
9168 free(fileindex_path);
9170 got_fileindex_free(fileindex);
9171 unlockerr = lock_worktree(worktree, LOCK_UN);
9172 if (unlockerr && err == NULL)
9177 static const struct got_error *
9178 patch_check_path(const char *p, char **path, unsigned char *status,
9179 unsigned char *staged_status, struct got_fileindex *fileindex,
9180 struct got_worktree *worktree, struct got_repository *repo)
9182 const struct got_error *err;
9183 struct got_fileindex_entry *ie;
9185 char *ondisk_path = NULL;
9187 err = got_worktree_resolve_path(path, worktree, p);
9191 if (asprintf(&ondisk_path, "%s%s%s", worktree->root_path,
9192 *path[0] ? "/" : "", *path) == -1)
9193 return got_error_from_errno("asprintf");
9195 ie = got_fileindex_entry_get(fileindex, *path, strlen(*path));
9197 *staged_status = get_staged_status(ie);
9198 err = get_file_status(status, &sb, ie, ondisk_path, -1, NULL,
9203 *staged_status = GOT_STATUS_NO_CHANGE;
9204 *status = GOT_STATUS_UNVERSIONED;
9205 if (lstat(ondisk_path, &sb) == -1) {
9206 if (errno != ENOENT) {
9207 err = got_error_from_errno2("lstat",
9211 *status = GOT_STATUS_NONEXISTENT;
9220 static const struct got_error *
9221 patch_can_rm(const char *path, unsigned char status,
9222 unsigned char staged_status)
9224 if (status == GOT_STATUS_NONEXISTENT)
9225 return got_error_set_errno(ENOENT, path);
9226 if (status != GOT_STATUS_NO_CHANGE &&
9227 status != GOT_STATUS_ADD &&
9228 status != GOT_STATUS_MODIFY &&
9229 status != GOT_STATUS_MODE_CHANGE)
9230 return got_error_path(path, GOT_ERR_FILE_STATUS);
9231 if (staged_status == GOT_STATUS_DELETE)
9232 return got_error_path(path, GOT_ERR_FILE_STATUS);
9236 static const struct got_error *
9237 patch_can_add(const char *path, unsigned char status)
9239 if (status != GOT_STATUS_NONEXISTENT)
9240 return got_error_path(path, GOT_ERR_FILE_STATUS);
9244 static const struct got_error *
9245 patch_can_edit(const char *path, unsigned char status,
9246 unsigned char staged_status)
9248 if (status == GOT_STATUS_NONEXISTENT)
9249 return got_error_set_errno(ENOENT, path);
9250 if (status != GOT_STATUS_NO_CHANGE &&
9251 status != GOT_STATUS_ADD &&
9252 status != GOT_STATUS_MODIFY)
9253 return got_error_path(path, GOT_ERR_FILE_STATUS);
9254 if (staged_status == GOT_STATUS_DELETE)
9255 return got_error_path(path, GOT_ERR_FILE_STATUS);
9259 const struct got_error *
9260 got_worktree_patch_prepare(struct got_fileindex **fileindex,
9261 char **fileindex_path, struct got_worktree *worktree)
9263 return open_fileindex(fileindex, fileindex_path, worktree);
9266 const struct got_error *
9267 got_worktree_patch_check_path(const char *old, const char *new,
9268 char **oldpath, char **newpath, struct got_worktree *worktree,
9269 struct got_repository *repo, struct got_fileindex *fileindex)
9271 const struct got_error *err = NULL;
9272 int file_renamed = 0;
9273 unsigned char status_old, staged_status_old;
9274 unsigned char status_new, staged_status_new;
9279 err = patch_check_path(old != NULL ? old : new, oldpath,
9280 &status_old, &staged_status_old, fileindex, worktree, repo);
9284 err = patch_check_path(new != NULL ? new : old, newpath,
9285 &status_new, &staged_status_new, fileindex, worktree, repo);
9289 if (old != NULL && new != NULL && strcmp(old, new) != 0)
9292 if (old != NULL && new == NULL)
9293 err = patch_can_rm(*oldpath, status_old, staged_status_old);
9294 else if (file_renamed) {
9295 err = patch_can_rm(*oldpath, status_old, staged_status_old);
9297 err = patch_can_add(*newpath, status_new);
9298 } else if (old == NULL)
9299 err = patch_can_add(*newpath, status_new);
9301 err = patch_can_edit(*newpath, status_new, staged_status_new);
9313 const struct got_error *
9314 got_worktree_patch_schedule_add(const char *path, struct got_repository *repo,
9315 struct got_worktree *worktree, struct got_fileindex *fileindex,
9316 got_worktree_checkout_cb progress_cb, void *progress_arg)
9318 struct schedule_addition_args saa;
9320 memset(&saa, 0, sizeof(saa));
9321 saa.worktree = worktree;
9322 saa.fileindex = fileindex;
9323 saa.progress_cb = progress_cb;
9324 saa.progress_arg = progress_arg;
9327 return worktree_status(worktree, path, fileindex, repo,
9328 schedule_addition, &saa, NULL, NULL, 1, 0);
9331 const struct got_error *
9332 got_worktree_patch_schedule_rm(const char *path, struct got_repository *repo,
9333 struct got_worktree *worktree, struct got_fileindex *fileindex,
9334 got_worktree_delete_cb progress_cb, void *progress_arg)
9336 struct schedule_deletion_args sda;
9338 memset(&sda, 0, sizeof(sda));
9339 sda.worktree = worktree;
9340 sda.fileindex = fileindex;
9341 sda.progress_cb = progress_cb;
9342 sda.progress_arg = progress_arg;
9344 sda.delete_local_mods = 0;
9345 sda.keep_on_disk = 0;
9346 sda.ignore_missing_paths = 0;
9347 sda.status_codes = NULL;
9349 return worktree_status(worktree, path, fileindex, repo,
9350 schedule_for_deletion, &sda, NULL, NULL, 1, 1);
9353 const struct got_error *
9354 got_worktree_patch_complete(struct got_fileindex *fileindex,
9355 const char *fileindex_path)
9357 const struct got_error *err = NULL;
9359 err = sync_fileindex(fileindex, fileindex_path);
9360 got_fileindex_free(fileindex);