2 * Copyright (c) 2018, 2019 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/limits.h>
19 #include <sys/queue.h>
37 #include "got_error.h"
38 #include "got_repository.h"
39 #include "got_reference.h"
40 #include "got_object.h"
42 #include "got_worktree.h"
43 #include "got_opentemp.h"
46 #include "got_lib_worktree.h"
47 #include "got_lib_sha1.h"
48 #include "got_lib_fileindex.h"
49 #include "got_lib_inflate.h"
50 #include "got_lib_delta.h"
51 #include "got_lib_object.h"
52 #include "got_lib_object_parse.h"
53 #include "got_lib_object_create.h"
54 #include "got_lib_object_idset.h"
55 #include "got_lib_diff.h"
58 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
61 static const struct got_error *
62 create_meta_file(const char *path_got, const char *name, const char *content)
64 const struct got_error *err = NULL;
67 if (asprintf(&path, "%s/%s", path_got, name) == -1)
68 return got_error_from_errno("asprintf");
70 err = got_path_create_file(path, content);
75 static const struct got_error *
76 update_meta_file(const char *path_got, const char *name, const char *content)
78 const struct got_error *err = NULL;
83 if (asprintf(&path, "%s/%s", path_got, name) == -1) {
84 err = got_error_from_errno("asprintf");
89 err = got_opentemp_named(&tmppath, &tmpfile, path);
94 int len = fprintf(tmpfile, "%s\n", content);
95 if (len != strlen(content) + 1) {
96 err = got_error_from_errno2("fprintf", tmppath);
101 if (rename(tmppath, path) != 0) {
102 err = got_error_from_errno3("rename", tmppath, path);
108 if (fclose(tmpfile) != 0 && err == NULL)
109 err = got_error_from_errno2("fclose", tmppath);
114 static const struct got_error *
115 read_meta_file(char **content, const char *path_got, const char *name)
117 const struct got_error *err = NULL;
125 if (asprintf(&path, "%s/%s", path_got, name) == -1) {
126 err = got_error_from_errno("asprintf");
131 fd = open(path, O_RDONLY | O_NOFOLLOW);
134 err = got_error(GOT_ERR_WORKTREE_META);
136 err = got_error_from_errno2("open", path);
139 if (flock(fd, LOCK_SH | LOCK_NB) == -1) {
140 err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
141 : got_error_from_errno2("flock", path));
145 if (lstat(path, &sb) != 0) {
146 err = got_error_from_errno2("lstat", path);
149 *content = calloc(1, sb.st_size);
150 if (*content == NULL) {
151 err = got_error_from_errno("calloc");
155 n = read(fd, *content, sb.st_size);
156 if (n != sb.st_size) {
157 err = (n == -1 ? got_error_from_errno2("read", path) :
158 got_error(GOT_ERR_WORKTREE_META));
161 if ((*content)[sb.st_size - 1] != '\n') {
162 err = got_error(GOT_ERR_WORKTREE_META);
165 (*content)[sb.st_size - 1] = '\0';
168 if (fd != -1 && close(fd) == -1 && err == NULL)
169 err = got_error_from_errno2("close", path_got);
178 static const struct got_error *
179 write_head_ref(const char *path_got, struct got_reference *head_ref)
181 const struct got_error *err = NULL;
184 if (got_ref_is_symbolic(head_ref)) {
185 refstr = got_ref_to_str(head_ref);
187 return got_error_from_errno("got_ref_to_str");
189 refstr = strdup(got_ref_get_name(head_ref));
191 return got_error_from_errno("strdup");
193 err = update_meta_file(path_got, GOT_WORKTREE_HEAD_REF, refstr);
198 const struct got_error *
199 got_worktree_init(const char *path, struct got_reference *head_ref,
200 const char *prefix, struct got_repository *repo)
202 const struct got_error *err = NULL;
203 struct got_object_id *commit_id = NULL;
205 uint32_t uuid_status;
207 char *path_got = NULL;
208 char *formatstr = NULL;
209 char *absprefix = NULL;
210 char *basestr = NULL;
211 char *uuidstr = NULL;
213 if (strcmp(path, got_repo_get_path(repo)) == 0) {
214 err = got_error(GOT_ERR_WORKTREE_REPO);
218 err = got_ref_resolve(&commit_id, repo, head_ref);
221 err = got_object_get_type(&obj_type, repo, commit_id);
224 if (obj_type != GOT_OBJ_TYPE_COMMIT)
225 return got_error(GOT_ERR_OBJ_TYPE);
227 if (!got_path_is_absolute(prefix)) {
228 if (asprintf(&absprefix, "/%s", prefix) == -1)
229 return got_error_from_errno("asprintf");
232 /* Create top-level directory (may already exist). */
233 if (mkdir(path, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
234 err = got_error_from_errno2("mkdir", path);
238 /* Create .got directory (may already exist). */
239 if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
240 err = got_error_from_errno("asprintf");
243 if (mkdir(path_got, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
244 err = got_error_from_errno2("mkdir", path_got);
248 /* Create an empty lock file. */
249 err = create_meta_file(path_got, GOT_WORKTREE_LOCK, NULL);
253 /* Create an empty file index. */
254 err = create_meta_file(path_got, GOT_WORKTREE_FILE_INDEX, NULL);
258 /* Write the HEAD reference. */
259 err = write_head_ref(path_got, head_ref);
263 /* Record our base commit. */
264 err = got_object_id_str(&basestr, commit_id);
267 err = create_meta_file(path_got, GOT_WORKTREE_BASE_COMMIT, basestr);
271 /* Store path to repository. */
272 err = create_meta_file(path_got, GOT_WORKTREE_REPOSITORY,
273 got_repo_get_path(repo));
277 /* Store in-repository path prefix. */
278 err = create_meta_file(path_got, GOT_WORKTREE_PATH_PREFIX,
279 absprefix ? absprefix : prefix);
284 uuid_create(&uuid, &uuid_status);
285 if (uuid_status != uuid_s_ok) {
286 err = got_error_uuid(uuid_status);
289 uuid_to_string(&uuid, &uuidstr, &uuid_status);
290 if (uuid_status != uuid_s_ok) {
291 err = got_error_uuid(uuid_status);
294 err = create_meta_file(path_got, GOT_WORKTREE_UUID, uuidstr);
298 /* Stamp work tree with format file. */
299 if (asprintf(&formatstr, "%d", GOT_WORKTREE_FORMAT_VERSION) == -1) {
300 err = got_error_from_errno("asprintf");
303 err = create_meta_file(path_got, GOT_WORKTREE_FORMAT, formatstr);
317 static const struct got_error *
318 open_worktree(struct got_worktree **worktree, const char *path)
320 const struct got_error *err = NULL;
322 char *formatstr = NULL;
323 char *uuidstr = NULL;
324 char *path_lock = NULL;
325 char *base_commit_id_str = NULL;
326 int version, fd = -1;
328 struct got_repository *repo = NULL;
329 uint32_t uuid_status;
333 if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
334 err = got_error_from_errno("asprintf");
339 if (asprintf(&path_lock, "%s/%s", path_got, GOT_WORKTREE_LOCK) == -1) {
340 err = got_error_from_errno("asprintf");
345 fd = open(path_lock, O_RDWR | O_EXLOCK | O_NONBLOCK);
347 err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
348 : got_error_from_errno2("open", path_lock));
352 err = read_meta_file(&formatstr, path_got, GOT_WORKTREE_FORMAT);
356 version = strtonum(formatstr, 1, INT_MAX, &errstr);
358 err = got_error(GOT_ERR_WORKTREE_META);
361 if (version != GOT_WORKTREE_FORMAT_VERSION) {
362 err = got_error(GOT_ERR_WORKTREE_VERS);
366 *worktree = calloc(1, sizeof(**worktree));
367 if (*worktree == NULL) {
368 err = got_error_from_errno("calloc");
371 (*worktree)->lockfd = -1;
373 (*worktree)->root_path = strdup(path);
374 if ((*worktree)->root_path == NULL) {
375 err = got_error_from_errno("strdup");
378 err = read_meta_file(&(*worktree)->repo_path, path_got,
379 GOT_WORKTREE_REPOSITORY);
383 err = read_meta_file(&(*worktree)->path_prefix, path_got,
384 GOT_WORKTREE_PATH_PREFIX);
388 err = read_meta_file(&base_commit_id_str, path_got,
389 GOT_WORKTREE_BASE_COMMIT);
393 err = read_meta_file(&uuidstr, path_got, GOT_WORKTREE_UUID);
396 uuid_from_string(uuidstr, &(*worktree)->uuid, &uuid_status);
397 if (uuid_status != uuid_s_ok) {
398 err = got_error_uuid(uuid_status);
402 err = got_repo_open(&repo, (*worktree)->repo_path);
406 err = got_object_resolve_id_str(&(*worktree)->base_commit_id, repo,
411 err = read_meta_file(&(*worktree)->head_ref_name, path_got,
412 GOT_WORKTREE_HEAD_REF);
415 got_repo_close(repo);
418 free(base_commit_id_str);
424 if (*worktree != NULL)
425 got_worktree_close(*worktree);
428 (*worktree)->lockfd = fd;
433 const struct got_error *
434 got_worktree_open(struct got_worktree **worktree, const char *path)
436 const struct got_error *err = NULL;
439 err = open_worktree(worktree, path);
440 if (err && !(err->code == GOT_ERR_ERRNO && errno == ENOENT))
444 path = dirname(path);
446 return got_error_from_errno2("dirname", path);
447 } while (!((path[0] == '.' || path[0] == '/') && path[1] == '\0'));
449 return got_error(GOT_ERR_NOT_WORKTREE);
452 const struct got_error *
453 got_worktree_close(struct got_worktree *worktree)
455 const struct got_error *err = NULL;
456 free(worktree->root_path);
457 free(worktree->repo_path);
458 free(worktree->path_prefix);
459 free(worktree->base_commit_id);
460 free(worktree->head_ref_name);
461 if (worktree->lockfd != -1)
462 if (close(worktree->lockfd) != 0)
463 err = got_error_from_errno2("close",
464 got_worktree_get_root_path(worktree));
470 got_worktree_get_root_path(struct got_worktree *worktree)
472 return worktree->root_path;
476 got_worktree_get_repo_path(struct got_worktree *worktree)
478 return worktree->repo_path;
482 got_worktree_get_path_prefix(struct got_worktree *worktree)
484 return worktree->path_prefix;
487 const struct got_error *
488 got_worktree_match_path_prefix(int *match, struct got_worktree *worktree,
489 const char *path_prefix)
491 char *absprefix = NULL;
493 if (!got_path_is_absolute(path_prefix)) {
494 if (asprintf(&absprefix, "/%s", path_prefix) == -1)
495 return got_error_from_errno("asprintf");
497 *match = (strcmp(absprefix ? absprefix : path_prefix,
498 worktree->path_prefix) == 0);
504 got_worktree_get_head_ref_name(struct got_worktree *worktree)
506 return worktree->head_ref_name;
509 const struct got_error *
510 got_worktree_set_head_ref(struct got_worktree *worktree,
511 struct got_reference *head_ref)
513 const struct got_error *err = NULL;
514 char *path_got = NULL, *head_ref_name = NULL;
516 if (asprintf(&path_got, "%s/%s", worktree->root_path,
517 GOT_WORKTREE_GOT_DIR) == -1) {
518 err = got_error_from_errno("asprintf");
523 head_ref_name = strdup(got_ref_get_name(head_ref));
524 if (head_ref_name == NULL) {
525 err = got_error_from_errno("strdup");
529 err = write_head_ref(path_got, head_ref);
533 free(worktree->head_ref_name);
534 worktree->head_ref_name = head_ref_name;
542 struct got_object_id *
543 got_worktree_get_base_commit_id(struct got_worktree *worktree)
545 return worktree->base_commit_id;
548 const struct got_error *
549 got_worktree_set_base_commit_id(struct got_worktree *worktree,
550 struct got_repository *repo, struct got_object_id *commit_id)
552 const struct got_error *err;
553 struct got_object *obj = NULL;
555 char *path_got = NULL;
557 if (asprintf(&path_got, "%s/%s", worktree->root_path,
558 GOT_WORKTREE_GOT_DIR) == -1) {
559 err = got_error_from_errno("asprintf");
564 err = got_object_open(&obj, repo, commit_id);
568 if (obj->type != GOT_OBJ_TYPE_COMMIT) {
569 err = got_error(GOT_ERR_OBJ_TYPE);
573 /* Record our base commit. */
574 err = got_object_id_str(&id_str, commit_id);
577 err = update_meta_file(path_got, GOT_WORKTREE_BASE_COMMIT, id_str);
581 free(worktree->base_commit_id);
582 worktree->base_commit_id = got_object_id_dup(commit_id);
583 if (worktree->base_commit_id == NULL) {
584 err = got_error_from_errno("got_object_id_dup");
589 got_object_close(obj);
595 static const struct got_error *
596 lock_worktree(struct got_worktree *worktree, int operation)
598 if (flock(worktree->lockfd, operation | LOCK_NB) == -1)
599 return (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
600 : got_error_from_errno2("flock",
601 got_worktree_get_root_path(worktree)));
605 static const struct got_error *
606 add_dir_on_disk(struct got_worktree *worktree, const char *path)
608 const struct got_error *err = NULL;
611 if (asprintf(&abspath, "%s/%s", worktree->root_path, path) == -1)
612 return got_error_from_errno("asprintf");
614 err = got_path_mkdir(abspath);
615 if (err && err->code == GOT_ERR_ERRNO && errno == EEXIST) {
618 if (lstat(abspath, &sb) == -1) {
619 err = got_error_from_errno2("lstat", abspath);
620 } else if (!S_ISDIR(sb.st_mode)) {
621 /* TODO directory is obstructed; do something */
622 err = got_error(GOT_ERR_FILE_OBSTRUCTED);
629 static const struct got_error *
630 check_file_contents_equal(int *same, FILE *f1, FILE *f2)
632 const struct got_error *err = NULL;
635 size_t flen1 = 0, flen2 = 0;
640 flen1 = fread(fbuf1, 1, sizeof(fbuf1), f1);
641 if (flen1 == 0 && ferror(f1)) {
642 err = got_error_from_errno("fread");
645 flen2 = fread(fbuf2, 1, sizeof(fbuf2), f2);
646 if (flen2 == 0 && ferror(f2)) {
647 err = got_error_from_errno("fread");
654 } else if (flen2 == 0) {
658 } else if (flen1 == flen2) {
659 if (memcmp(fbuf1, fbuf2, flen2) != 0) {
672 static const struct got_error *
673 check_files_equal(int *same, const char *f1_path, const char *f2_path)
675 const struct got_error *err = NULL;
678 FILE *f1 = NULL, *f2 = NULL;
682 if (lstat(f1_path, &sb) != 0) {
683 err = got_error_from_errno2("lstat", f1_path);
688 if (lstat(f2_path, &sb) != 0) {
689 err = got_error_from_errno2("lstat", f2_path);
694 if (size1 != size2) {
699 f1 = fopen(f1_path, "r");
701 return got_error_from_errno2("open", f1_path);
703 f2 = fopen(f2_path, "r");
705 err = got_error_from_errno2("open", f2_path);
709 err = check_file_contents_equal(same, f1, f2);
711 if (f1 && fclose(f1) != 0 && err == NULL)
712 err = got_error_from_errno("fclose");
713 if (f2 && fclose(f2) != 0 && err == NULL)
714 err = got_error_from_errno("fclose");
720 * Perform a 3-way merge where blob_orig acts as the common ancestor,
721 * blob_deriv acts as the first derived version, and the file on disk
722 * acts as the second derived version.
724 static const struct got_error *
725 merge_blob(int *local_changes_subsumed, struct got_worktree *worktree,
726 struct got_blob_object *blob_orig, const char *ondisk_path,
727 const char *path, uint16_t st_mode, struct got_blob_object *blob_deriv,
728 struct got_object_id *deriv_base_commit_id,
729 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
732 const struct got_error *err = NULL;
734 FILE *f_deriv = NULL, *f_orig = NULL;
735 char *blob_deriv_path = NULL, *blob_orig_path = NULL;
736 char *merged_path = NULL, *base_path = NULL;
738 char *label_deriv = NULL;
742 *local_changes_subsumed = 0;
744 parent = dirname(ondisk_path);
746 return got_error_from_errno2("dirname", ondisk_path);
748 if (asprintf(&base_path, "%s/got-merged", parent) == -1)
749 return got_error_from_errno("asprintf");
751 err = got_opentemp_named_fd(&merged_path, &merged_fd, base_path);
756 if (asprintf(&base_path, "%s/got-merge-blob-deriv", parent) == -1) {
757 err = got_error_from_errno("asprintf");
762 err = got_opentemp_named(&blob_deriv_path, &f_deriv, base_path);
765 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f_deriv,
771 if (asprintf(&base_path, "%s/got-merge-blob-orig", parent) == -1) {
772 err = got_error_from_errno("asprintf");
777 err = got_opentemp_named(&blob_orig_path, &f_orig, base_path);
781 err = got_object_blob_dump_to_file(NULL, NULL, NULL, f_orig,
787 * If the file has no blob, this is an "add vs add" conflict,
788 * and we simply use an empty ancestor file to make both files
789 * appear in the merged result in their entirety.
793 err = got_object_id_str(&id_str, deriv_base_commit_id);
796 if (asprintf(&label_deriv, "commit %s", id_str) == -1) {
797 err = got_error_from_errno("asprintf");
801 err = got_merge_diff3(&overlapcnt, merged_fd, blob_deriv_path,
802 blob_orig_path, ondisk_path, label_deriv, path);
806 err = (*progress_cb)(progress_arg,
807 overlapcnt > 0 ? GOT_STATUS_CONFLICT : GOT_STATUS_MERGE, path);
811 if (fsync(merged_fd) != 0) {
812 err = got_error_from_errno("fsync");
816 /* Check if a clean merge has subsumed all local changes. */
817 if (overlapcnt == 0) {
818 err = check_files_equal(local_changes_subsumed, blob_deriv_path,
824 if (chmod(merged_path, st_mode) != 0) {
825 err = got_error_from_errno2("chmod", merged_path);
829 if (rename(merged_path, ondisk_path) != 0) {
830 err = got_error_from_errno3("rename", merged_path,
837 if (merged_fd != -1 && close(merged_fd) != 0 && err == NULL)
838 err = got_error_from_errno("close");
839 if (f_deriv && fclose(f_deriv) != 0 && err == NULL)
840 err = got_error_from_errno("fclose");
841 if (f_orig && fclose(f_orig) != 0 && err == NULL)
842 err = got_error_from_errno("fclose");
845 if (blob_deriv_path) {
846 unlink(blob_deriv_path);
847 free(blob_deriv_path);
849 if (blob_orig_path) {
850 unlink(blob_orig_path);
851 free(blob_orig_path);
858 static const struct got_error *
859 update_blob_fileindex_entry(struct got_worktree *worktree,
860 struct got_fileindex *fileindex, struct got_fileindex_entry *ie,
861 const char *ondisk_path, const char *path, struct got_blob_object *blob,
862 int update_timestamps)
864 const struct got_error *err = NULL;
867 ie = got_fileindex_entry_get(fileindex, path);
869 err = got_fileindex_entry_update(ie, ondisk_path,
870 blob->id.sha1, worktree->base_commit_id->sha1,
873 struct got_fileindex_entry *new_ie;
874 err = got_fileindex_entry_alloc(&new_ie, ondisk_path,
875 path, blob->id.sha1, worktree->base_commit_id->sha1);
877 err = got_fileindex_entry_add(fileindex, new_ie);
882 static const struct got_error *
883 install_blob(struct got_worktree *worktree, const char *ondisk_path,
884 const char *path, uint16_t te_mode, uint16_t st_mode,
885 struct got_blob_object *blob, int restoring_missing_file,
886 int reverting_versioned_file, struct got_repository *repo,
887 got_worktree_checkout_cb progress_cb, void *progress_arg)
889 const struct got_error *err = NULL;
893 char *tmppath = NULL;
895 fd = open(ondisk_path, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW,
896 GOT_DEFAULT_FILE_MODE);
898 if (errno == ENOENT) {
899 char *parent = dirname(path);
901 return got_error_from_errno2("dirname", path);
902 err = add_dir_on_disk(worktree, parent);
905 fd = open(ondisk_path,
906 O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW,
907 GOT_DEFAULT_FILE_MODE);
909 return got_error_from_errno2("open",
911 } else if (errno == EEXIST) {
912 if (!S_ISREG(st_mode)) {
913 /* TODO file is obstructed; do something */
914 err = got_error(GOT_ERR_FILE_OBSTRUCTED);
917 err = got_opentemp_named_fd(&tmppath, &fd,
924 return got_error_from_errno2("open", ondisk_path);
927 if (restoring_missing_file)
928 err = (*progress_cb)(progress_arg, GOT_STATUS_MISSING, path);
929 else if (reverting_versioned_file)
930 err = (*progress_cb)(progress_arg, GOT_STATUS_REVERT, path);
932 err = (*progress_cb)(progress_arg,
933 update ? GOT_STATUS_UPDATE : GOT_STATUS_ADD, path);
937 hdrlen = got_object_blob_get_hdrlen(blob);
939 const uint8_t *buf = got_object_blob_get_read_buf(blob);
940 err = got_object_blob_read_block(&len, blob);
944 /* Skip blob object header first time around. */
945 ssize_t outlen = write(fd, buf + hdrlen, len - hdrlen);
947 err = got_error_from_errno("write");
949 } else if (outlen != len - hdrlen) {
950 err = got_error(GOT_ERR_IO);
957 if (fsync(fd) != 0) {
958 err = got_error_from_errno("fsync");
963 if (rename(tmppath, ondisk_path) != 0) {
964 err = got_error_from_errno3("rename", tmppath,
971 if (te_mode & S_IXUSR) {
972 if (chmod(ondisk_path, st_mode | S_IXUSR) == -1) {
973 err = got_error_from_errno2("chmod", ondisk_path);
977 if (chmod(ondisk_path, st_mode & ~S_IXUSR) == -1) {
978 err = got_error_from_errno2("chmod", ondisk_path);
984 if (fd != -1 && close(fd) != 0 && err == NULL)
985 err = got_error_from_errno("close");
990 /* Upgrade STATUS_MODIFY to STATUS_CONFLICT if a conflict marker is found. */
991 static const struct got_error *
992 get_modified_file_content_status(unsigned char *status, FILE *f)
994 const struct got_error *err = NULL;
995 const char *markers[3] = {
996 GOT_DIFF_CONFLICT_MARKER_BEGIN,
997 GOT_DIFF_CONFLICT_MARKER_SEP,
998 GOT_DIFF_CONFLICT_MARKER_END
1003 const char delim[3] = {'\0', '\0', '\0'};
1005 while (*status == GOT_STATUS_MODIFY) {
1006 line = fparseln(f, &len, NULL, delim, 0);
1010 err = got_ferror(f, GOT_ERR_IO);
1014 if (strncmp(line, markers[i], strlen(markers[i])) == 0) {
1015 if (strcmp(markers[i], GOT_DIFF_CONFLICT_MARKER_END)
1017 *status = GOT_STATUS_CONFLICT;
1027 stat_info_differs(struct got_fileindex_entry *ie, struct stat *sb)
1029 return !(ie->ctime_sec == sb->st_ctime &&
1030 ie->ctime_nsec == sb->st_ctimensec &&
1031 ie->mtime_sec == sb->st_mtime &&
1032 ie->mtime_nsec == sb->st_mtimensec &&
1033 ie->size == (sb->st_size & 0xffffffff));
1036 static const struct got_error *
1037 get_file_status(unsigned char *status, struct stat *sb,
1038 struct got_fileindex_entry *ie, const char *abspath,
1039 struct got_repository *repo)
1041 const struct got_error *err = NULL;
1042 struct got_object_id id;
1046 struct got_blob_object *blob = NULL;
1049 *status = GOT_STATUS_NO_CHANGE;
1051 if (lstat(abspath, sb) == -1) {
1052 if (errno == ENOENT) {
1054 if (got_fileindex_entry_has_file_on_disk(ie))
1055 *status = GOT_STATUS_MISSING;
1057 *status = GOT_STATUS_DELETE;
1059 ((ie->mode >> GOT_FILEIDX_MODE_PERMS_SHIFT)
1060 & (S_IRWXU | S_IRWXG | S_IRWXO));
1062 sb->st_mode = GOT_DEFAULT_FILE_MODE;
1065 return got_error_from_errno2("lstat", abspath);
1068 if (!S_ISREG(sb->st_mode)) {
1069 *status = GOT_STATUS_OBSTRUCTED;
1076 if (!got_fileindex_entry_has_file_on_disk(ie)) {
1077 *status = GOT_STATUS_DELETE;
1079 } else if (!got_fileindex_entry_has_blob(ie)) {
1080 *status = GOT_STATUS_ADD;
1084 if (!stat_info_differs(ie, sb))
1087 memcpy(id.sha1, ie->blob_sha1, sizeof(id.sha1));
1088 err = got_object_open_as_blob(&blob, repo, &id, sizeof(fbuf));
1092 f = fopen(abspath, "r");
1094 err = got_error_from_errno2("fopen", abspath);
1097 hdrlen = got_object_blob_get_hdrlen(blob);
1099 const uint8_t *bbuf = got_object_blob_get_read_buf(blob);
1100 err = got_object_blob_read_block(&blen, blob);
1103 /* Skip length of blob object header first time around. */
1104 flen = fread(fbuf, 1, sizeof(fbuf) - hdrlen, f);
1105 if (flen == 0 && ferror(f)) {
1106 err = got_error_from_errno("fread");
1111 *status = GOT_STATUS_MODIFY;
1113 } else if (flen == 0) {
1115 *status = GOT_STATUS_MODIFY;
1117 } else if (blen - hdrlen == flen) {
1118 /* Skip blob object header first time around. */
1119 if (memcmp(bbuf + hdrlen, fbuf, flen) != 0) {
1120 *status = GOT_STATUS_MODIFY;
1124 *status = GOT_STATUS_MODIFY;
1130 if (*status == GOT_STATUS_MODIFY) {
1132 err = get_modified_file_content_status(status, f);
1136 got_object_blob_close(blob);
1143 * Update timestamps in the file index if a file is unmodified and
1144 * we had to run a full content comparison to find out.
1146 static const struct got_error *
1147 sync_timestamps(char *ondisk_path, unsigned char status,
1148 struct got_fileindex_entry *ie, struct stat *sb)
1150 if (status == GOT_STATUS_NO_CHANGE && stat_info_differs(ie, sb))
1151 return got_fileindex_entry_update(ie, ondisk_path,
1152 ie->blob_sha1, ie->commit_sha1, 1);
1157 static const struct got_error *
1158 update_blob(struct got_worktree *worktree,
1159 struct got_fileindex *fileindex, struct got_fileindex_entry *ie,
1160 struct got_tree_entry *te, const char *path,
1161 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
1164 const struct got_error *err = NULL;
1165 struct got_blob_object *blob = NULL;
1167 unsigned char status = GOT_STATUS_NO_CHANGE;
1170 if (asprintf(&ondisk_path, "%s/%s", worktree->root_path, path) == -1)
1171 return got_error_from_errno("asprintf");
1173 err = get_file_status(&status, &sb, ie, ondisk_path, repo);
1177 if (status == GOT_STATUS_OBSTRUCTED) {
1178 err = (*progress_cb)(progress_arg, status, path);
1182 if (ie && status != GOT_STATUS_MISSING) {
1183 if (got_fileindex_entry_has_commit(ie) &&
1184 memcmp(ie->commit_sha1, worktree->base_commit_id->sha1,
1185 SHA1_DIGEST_LENGTH) == 0) {
1186 err = sync_timestamps(ondisk_path, status, ie, &sb);
1189 err = (*progress_cb)(progress_arg, GOT_STATUS_EXISTS,
1193 if (got_fileindex_entry_has_blob(ie) &&
1194 memcmp(ie->blob_sha1, te->id->sha1,
1195 SHA1_DIGEST_LENGTH) == 0) {
1196 err = sync_timestamps(ondisk_path, status, ie, &sb);
1201 err = got_object_open_as_blob(&blob, repo, te->id, 8192);
1205 if (status == GOT_STATUS_MODIFY || status == GOT_STATUS_ADD) {
1206 int update_timestamps;
1207 struct got_blob_object *blob2 = NULL;
1208 if (got_fileindex_entry_has_blob(ie)) {
1209 struct got_object_id id2;
1210 memcpy(id2.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
1211 err = got_object_open_as_blob(&blob2, repo, &id2, 8192);
1215 err = merge_blob(&update_timestamps, worktree, blob2,
1216 ondisk_path, path, sb.st_mode, blob,
1217 worktree->base_commit_id, repo,
1218 progress_cb, progress_arg);
1220 got_object_blob_close(blob2);
1222 * Do not update timestamps of files with local changes.
1223 * Otherwise, a future status walk would treat them as
1224 * unmodified files again.
1226 err = got_fileindex_entry_update(ie, ondisk_path,
1227 blob->id.sha1, worktree->base_commit_id->sha1,
1229 } else if (status == GOT_STATUS_DELETE) {
1230 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE, path);
1233 err = update_blob_fileindex_entry(worktree, fileindex, ie,
1234 ondisk_path, path, blob, 0);
1238 err = install_blob(worktree, ondisk_path, path, te->mode,
1239 sb.st_mode, blob, status == GOT_STATUS_MISSING, 0,
1240 repo, progress_cb, progress_arg);
1243 err = update_blob_fileindex_entry(worktree, fileindex, ie,
1244 ondisk_path, path, blob, 1);
1248 got_object_blob_close(blob);
1254 static const struct got_error *
1255 remove_ondisk_file(const char *root_path, const char *path)
1257 const struct got_error *err = NULL;
1258 char *ondisk_path = NULL;
1260 if (asprintf(&ondisk_path, "%s/%s", root_path, path) == -1)
1261 return got_error_from_errno("asprintf");
1263 if (unlink(ondisk_path) == -1) {
1264 if (errno != ENOENT)
1265 err = got_error_from_errno2("unlink", ondisk_path);
1267 char *parent = dirname(ondisk_path);
1268 while (parent && strcmp(parent, root_path) != 0) {
1269 if (rmdir(parent) == -1) {
1270 if (errno != ENOTEMPTY)
1271 err = got_error_from_errno2("rmdir",
1275 parent = dirname(parent);
1282 static const struct got_error *
1283 delete_blob(struct got_worktree *worktree, struct got_fileindex *fileindex,
1284 struct got_fileindex_entry *ie, struct got_repository *repo,
1285 got_worktree_checkout_cb progress_cb, void *progress_arg)
1287 const struct got_error *err = NULL;
1288 unsigned char status;
1292 if (asprintf(&ondisk_path, "%s/%s", worktree->root_path, ie->path)
1294 return got_error_from_errno("asprintf");
1296 err = get_file_status(&status, &sb, ie, ondisk_path, repo);
1300 if (status == GOT_STATUS_MODIFY || status == GOT_STATUS_CONFLICT ||
1301 status == GOT_STATUS_ADD) {
1302 err = (*progress_cb)(progress_arg, GOT_STATUS_MERGE, ie->path);
1306 * Preserve the working file and change the deleted blob's
1307 * entry into a schedule-add entry.
1309 err = got_fileindex_entry_update(ie, ondisk_path, NULL, NULL,
1314 err = (*progress_cb)(progress_arg, GOT_STATUS_DELETE, ie->path);
1317 if (status == GOT_STATUS_NO_CHANGE) {
1318 err = remove_ondisk_file(worktree->root_path, ie->path);
1322 got_fileindex_entry_remove(fileindex, ie);
1328 struct diff_cb_arg {
1329 struct got_fileindex *fileindex;
1330 struct got_worktree *worktree;
1331 struct got_repository *repo;
1332 got_worktree_checkout_cb progress_cb;
1334 got_worktree_cancel_cb cancel_cb;
1338 static const struct got_error *
1339 diff_old_new(void *arg, struct got_fileindex_entry *ie,
1340 struct got_tree_entry *te, const char *parent_path)
1342 struct diff_cb_arg *a = arg;
1344 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
1345 return got_error(GOT_ERR_CANCELLED);
1347 return update_blob(a->worktree, a->fileindex, ie, te,
1348 ie->path, a->repo, a->progress_cb, a->progress_arg);
1351 static const struct got_error *
1352 diff_old(void *arg, struct got_fileindex_entry *ie, const char *parent_path)
1354 struct diff_cb_arg *a = arg;
1356 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
1357 return got_error(GOT_ERR_CANCELLED);
1359 return delete_blob(a->worktree, a->fileindex, ie,
1360 a->repo, a->progress_cb, a->progress_arg);
1363 static const struct got_error *
1364 diff_new(void *arg, struct got_tree_entry *te, const char *parent_path)
1366 struct diff_cb_arg *a = arg;
1367 const struct got_error *err;
1370 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
1371 return got_error(GOT_ERR_CANCELLED);
1373 if (asprintf(&path, "%s%s%s", parent_path,
1374 parent_path[0] ? "/" : "", te->name)
1376 return got_error_from_errno("asprintf");
1378 if (S_ISDIR(te->mode))
1379 err = add_dir_on_disk(a->worktree, path);
1381 err = update_blob(a->worktree, a->fileindex, NULL, te, path,
1382 a->repo, a->progress_cb, a->progress_arg);
1388 static const struct got_error *
1389 get_ref_name(char **refname, struct got_worktree *worktree, const char *prefix)
1391 const struct got_error *err = NULL;
1392 char *uuidstr = NULL;
1393 uint32_t uuid_status;
1397 uuid_to_string(&worktree->uuid, &uuidstr, &uuid_status);
1398 if (uuid_status != uuid_s_ok)
1399 return got_error_uuid(uuid_status);
1401 if (asprintf(refname, "%s-%s", prefix, uuidstr)
1403 err = got_error_from_errno("asprintf");
1410 const struct got_error *
1411 got_worktree_get_base_ref_name(char **refname, struct got_worktree *worktree)
1413 return get_ref_name(refname, worktree, GOT_WORKTREE_BASE_REF_PREFIX);
1416 static const struct got_error *
1417 get_rebase_tmp_ref_name(char **refname, struct got_worktree *worktree)
1419 return get_ref_name(refname, worktree,
1420 GOT_WORKTREE_REBASE_TMP_REF_PREFIX);
1423 static const struct got_error *
1424 get_newbase_symref_name(char **refname, struct got_worktree *worktree)
1426 return get_ref_name(refname, worktree, GOT_WORKTREE_NEWBASE_REF_PREFIX);
1429 static const struct got_error *
1430 get_rebase_branch_symref_name(char **refname, struct got_worktree *worktree)
1432 return get_ref_name(refname, worktree,
1433 GOT_WORKTREE_REBASE_BRANCH_REF_PREFIX);
1436 static const struct got_error *
1437 get_rebase_commit_ref_name(char **refname, struct got_worktree *worktree)
1439 return get_ref_name(refname, worktree,
1440 GOT_WORKTREE_REBASE_COMMIT_REF_PREFIX);
1443 static const struct got_error *
1444 get_histedit_tmp_ref_name(char **refname, struct got_worktree *worktree)
1446 return get_ref_name(refname, worktree,
1447 GOT_WORKTREE_HISTEDIT_TMP_REF_PREFIX);
1450 static const struct got_error *
1451 get_histedit_branch_symref_name(char **refname, struct got_worktree *worktree)
1453 return get_ref_name(refname, worktree,
1454 GOT_WORKTREE_HISTEDIT_BRANCH_REF_PREFIX);
1457 static const struct got_error *
1458 get_histedit_base_commit_ref_name(char **refname, struct got_worktree *worktree)
1460 return get_ref_name(refname, worktree,
1461 GOT_WORKTREE_HISTEDIT_BASE_COMMIT_REF_PREFIX);
1464 static const struct got_error *
1465 get_histedit_commit_ref_name(char **refname, struct got_worktree *worktree)
1467 return get_ref_name(refname, worktree,
1468 GOT_WORKTREE_HISTEDIT_COMMIT_REF_PREFIX);
1471 const struct got_error *
1472 got_worktree_get_histedit_list_path(char **path, struct got_worktree *worktree)
1474 if (asprintf(path, "%s/%s/%s", worktree->root_path,
1475 GOT_WORKTREE_GOT_DIR, GOT_WORKTREE_HISTEDIT_LIST) == -1) {
1477 return got_error_from_errno("asprintf");
1483 * Prevent Git's garbage collector from deleting our base commit by
1484 * setting a reference to our base commit's ID.
1486 static const struct got_error *
1487 ref_base_commit(struct got_worktree *worktree, struct got_repository *repo)
1489 const struct got_error *err = NULL;
1490 struct got_reference *ref = NULL;
1493 err = got_worktree_get_base_ref_name(&refname, worktree);
1497 err = got_ref_alloc(&ref, refname, worktree->base_commit_id);
1501 err = got_ref_write(ref, repo);
1509 static const struct got_error *
1510 open_fileindex(struct got_fileindex **fileindex, char **fileindex_path,
1511 struct got_worktree *worktree)
1513 const struct got_error *err = NULL;
1516 *fileindex_path = NULL;
1517 *fileindex = got_fileindex_alloc();
1518 if (*fileindex == NULL)
1519 return got_error_from_errno("got_fileindex_alloc");
1521 if (asprintf(fileindex_path, "%s/%s/%s", worktree->root_path,
1522 GOT_WORKTREE_GOT_DIR, GOT_WORKTREE_FILE_INDEX) == -1) {
1523 err = got_error_from_errno("asprintf");
1524 *fileindex_path = NULL;
1528 index = fopen(*fileindex_path, "rb");
1529 if (index == NULL) {
1530 if (errno != ENOENT)
1531 err = got_error_from_errno2("fopen", *fileindex_path);
1533 err = got_fileindex_read(*fileindex, index);
1534 if (fclose(index) != 0 && err == NULL)
1535 err = got_error_from_errno("fclose");
1539 free(*fileindex_path);
1540 *fileindex_path = NULL;
1541 got_fileindex_free(*fileindex);
1547 struct bump_base_commit_id_arg {
1548 struct got_object_id *base_commit_id;
1551 const char *entry_name;
1552 got_worktree_checkout_cb progress_cb;
1556 /* Bump base commit ID of all files within an updated part of the work tree. */
1557 static const struct got_error *
1558 bump_base_commit_id(void *arg, struct got_fileindex_entry *ie)
1560 const struct got_error *err;
1561 struct bump_base_commit_id_arg *a = arg;
1563 if (a->entry_name) {
1564 if (strcmp(ie->path, a->path) != 0)
1566 } else if (!got_path_is_child(ie->path, a->path, a->path_len))
1569 if (memcmp(ie->commit_sha1, a->base_commit_id->sha1,
1570 SHA1_DIGEST_LENGTH) == 0)
1573 if (a->progress_cb) {
1574 err = (*a->progress_cb)(a->progress_arg, GOT_STATUS_BUMP_BASE,
1579 memcpy(ie->commit_sha1, a->base_commit_id->sha1, SHA1_DIGEST_LENGTH);
1583 static const struct got_error *
1584 sync_fileindex(struct got_fileindex *fileindex, const char *fileindex_path)
1586 const struct got_error *err = NULL;
1587 char *new_fileindex_path = NULL;
1588 FILE *new_index = NULL;
1590 err = got_opentemp_named(&new_fileindex_path, &new_index,
1595 err = got_fileindex_write(fileindex, new_index);
1599 if (rename(new_fileindex_path, fileindex_path) != 0) {
1600 err = got_error_from_errno3("rename", new_fileindex_path,
1602 unlink(new_fileindex_path);
1607 free(new_fileindex_path);
1611 static const struct got_error *
1612 find_tree_entry_for_checkout(int *entry_type, char **tree_relpath,
1613 struct got_object_id **tree_id, const char *wt_relpath,
1614 struct got_worktree *worktree, struct got_repository *repo)
1616 const struct got_error *err = NULL;
1617 struct got_object_id *id = NULL;
1618 char *in_repo_path = NULL;
1619 int is_root_wt = got_path_is_root_dir(worktree->path_prefix);
1621 *entry_type = GOT_OBJ_TYPE_ANY;
1622 *tree_relpath = NULL;
1625 if (wt_relpath[0] == '\0') {
1626 /* Check out all files within the work tree. */
1627 *entry_type = GOT_OBJ_TYPE_TREE;
1628 *tree_relpath = strdup("");
1629 if (*tree_relpath == NULL) {
1630 err = got_error_from_errno("strdup");
1633 err = got_object_id_by_path(tree_id, repo,
1634 worktree->base_commit_id, worktree->path_prefix);
1640 /* Check out a subset of files in the work tree. */
1642 if (asprintf(&in_repo_path, "%s%s%s", worktree->path_prefix,
1643 is_root_wt ? "" : "/", wt_relpath) == -1) {
1644 err = got_error_from_errno("asprintf");
1648 err = got_object_id_by_path(&id, repo, worktree->base_commit_id,
1654 in_repo_path = NULL;
1656 err = got_object_get_type(entry_type, repo, id);
1660 if (*entry_type == GOT_OBJ_TYPE_BLOB) {
1661 /* Check out a single file. */
1662 if (strchr(wt_relpath, '/') == NULL) {
1663 /* Check out a single file in work tree's root dir. */
1664 in_repo_path = strdup(worktree->path_prefix);
1665 if (in_repo_path == NULL) {
1666 err = got_error_from_errno("strdup");
1669 *tree_relpath = strdup("");
1670 if (*tree_relpath == NULL) {
1671 err = got_error_from_errno("strdup");
1675 /* Check out a single file in a subdirectory. */
1676 err = got_path_dirname(tree_relpath, wt_relpath);
1679 if (asprintf(&in_repo_path, "%s%s%s",
1680 worktree->path_prefix, is_root_wt ? "" : "/",
1681 *tree_relpath) == -1) {
1682 err = got_error_from_errno("asprintf");
1686 err = got_object_id_by_path(tree_id, repo,
1687 worktree->base_commit_id, in_repo_path);
1689 /* Check out all files within a subdirectory. */
1690 *tree_id = got_object_id_dup(id);
1691 if (*tree_id == NULL) {
1692 err = got_error_from_errno("got_object_id_dup");
1695 *tree_relpath = strdup(wt_relpath);
1696 if (*tree_relpath == NULL) {
1697 err = got_error_from_errno("strdup");
1705 *entry_type = GOT_OBJ_TYPE_ANY;
1706 free(*tree_relpath);
1707 *tree_relpath = NULL;
1714 static const struct got_error *
1715 checkout_files(struct got_worktree *worktree, struct got_fileindex *fileindex,
1716 const char *relpath, struct got_object_id *tree_id, const char *entry_name,
1717 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
1718 void *progress_arg, got_worktree_cancel_cb cancel_cb, void *cancel_arg)
1720 const struct got_error *err = NULL;
1721 struct got_commit_object *commit = NULL;
1722 struct got_tree_object *tree = NULL;
1723 struct got_fileindex_diff_tree_cb diff_cb;
1724 struct diff_cb_arg arg;
1726 err = ref_base_commit(worktree, repo);
1730 err = got_object_open_as_commit(&commit, repo,
1731 worktree->base_commit_id);
1735 err = got_object_open_as_tree(&tree, repo, tree_id);
1740 got_object_tree_find_entry(tree, entry_name) == NULL) {
1741 err = got_error(GOT_ERR_NO_TREE_ENTRY);
1745 diff_cb.diff_old_new = diff_old_new;
1746 diff_cb.diff_old = diff_old;
1747 diff_cb.diff_new = diff_new;
1748 arg.fileindex = fileindex;
1749 arg.worktree = worktree;
1751 arg.progress_cb = progress_cb;
1752 arg.progress_arg = progress_arg;
1753 arg.cancel_cb = cancel_cb;
1754 arg.cancel_arg = cancel_arg;
1755 err = got_fileindex_diff_tree(fileindex, tree, relpath,
1756 entry_name, repo, &diff_cb, &arg);
1759 got_object_tree_close(tree);
1761 got_object_commit_close(commit);
1765 const struct got_error *
1766 got_worktree_checkout_files(struct got_worktree *worktree, const char *path,
1767 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
1768 void *progress_arg, got_worktree_cancel_cb cancel_cb, void *cancel_arg)
1770 const struct got_error *err = NULL, *sync_err, *unlockerr;
1771 struct got_commit_object *commit = NULL;
1772 struct got_object_id *tree_id = NULL;
1773 struct got_tree_object *tree = NULL;
1774 struct got_fileindex *fileindex = NULL;
1775 char *fileindex_path = NULL;
1776 char *relpath = NULL, *entry_name = NULL;
1779 err = lock_worktree(worktree, LOCK_EX);
1783 err = find_tree_entry_for_checkout(&entry_type, &relpath, &tree_id,
1784 path, worktree, repo);
1788 if (entry_type == GOT_OBJ_TYPE_BLOB) {
1789 entry_name = basename(path);
1790 if (entry_name == NULL) {
1791 err = got_error_from_errno2("basename", path);
1797 * Read the file index.
1798 * Checking out files is supposed to be an idempotent operation.
1799 * If the on-disk file index is incomplete we will try to complete it.
1801 err = open_fileindex(&fileindex, &fileindex_path, worktree);
1805 err = checkout_files(worktree, fileindex, relpath, tree_id, entry_name,
1806 repo, progress_cb, progress_arg, cancel_cb, cancel_arg);
1808 struct bump_base_commit_id_arg bbc_arg;
1809 bbc_arg.base_commit_id = worktree->base_commit_id;
1810 bbc_arg.entry_name = entry_name;
1811 bbc_arg.path = path;
1812 bbc_arg.path_len = strlen(path);
1813 bbc_arg.progress_cb = progress_cb;
1814 bbc_arg.progress_arg = progress_arg;
1815 err = got_fileindex_for_each_entry_safe(fileindex,
1816 bump_base_commit_id, &bbc_arg);
1818 sync_err = sync_fileindex(fileindex, fileindex_path);
1819 if (sync_err && err == NULL)
1822 free(fileindex_path);
1825 got_object_tree_close(tree);
1827 got_object_commit_close(commit);
1829 got_fileindex_free(fileindex);
1830 unlockerr = lock_worktree(worktree, LOCK_SH);
1831 if (unlockerr && err == NULL)
1836 struct merge_file_cb_arg {
1837 struct got_worktree *worktree;
1838 struct got_fileindex *fileindex;
1839 got_worktree_checkout_cb progress_cb;
1841 got_worktree_cancel_cb cancel_cb;
1843 struct got_object_id *commit_id2;
1846 static const struct got_error *
1847 merge_file_cb(void *arg, struct got_blob_object *blob1,
1848 struct got_blob_object *blob2, struct got_object_id *id1,
1849 struct got_object_id *id2, const char *path1, const char *path2,
1850 struct got_repository *repo)
1852 static const struct got_error *err = NULL;
1853 struct merge_file_cb_arg *a = arg;
1854 struct got_fileindex_entry *ie;
1855 char *ondisk_path = NULL;
1857 unsigned char status;
1858 int local_changes_subsumed;
1860 if (blob1 && blob2) {
1861 ie = got_fileindex_entry_get(a->fileindex, path2);
1863 return (*a->progress_cb)(a->progress_arg,
1864 GOT_STATUS_MISSING, path2);
1866 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
1868 return got_error_from_errno("asprintf");
1870 err = get_file_status(&status, &sb, ie, ondisk_path, repo);
1874 if (status == GOT_STATUS_DELETE) {
1875 err = (*a->progress_cb)(a->progress_arg,
1876 GOT_STATUS_MERGE, path2);
1879 if (status != GOT_STATUS_NO_CHANGE &&
1880 status != GOT_STATUS_MODIFY &&
1881 status != GOT_STATUS_CONFLICT &&
1882 status != GOT_STATUS_ADD) {
1883 err = (*a->progress_cb)(a->progress_arg, status, path2);
1887 err = merge_blob(&local_changes_subsumed, a->worktree, blob1,
1888 ondisk_path, path2, sb.st_mode, blob2, a->commit_id2, repo,
1889 a->progress_cb, a->progress_arg);
1891 ie = got_fileindex_entry_get(a->fileindex, path1);
1893 return (*a->progress_cb)(a->progress_arg,
1894 GOT_STATUS_MISSING, path2);
1896 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
1898 return got_error_from_errno("asprintf");
1900 err = get_file_status(&status, &sb, ie, ondisk_path, repo);
1905 case GOT_STATUS_NO_CHANGE:
1906 err = (*a->progress_cb)(a->progress_arg,
1907 GOT_STATUS_DELETE, path1);
1910 err = remove_ondisk_file(a->worktree->root_path, path1);
1914 got_fileindex_entry_mark_deleted_from_disk(ie);
1916 case GOT_STATUS_DELETE:
1917 case GOT_STATUS_MISSING:
1918 err = (*a->progress_cb)(a->progress_arg,
1919 GOT_STATUS_DELETE, path1);
1923 got_fileindex_entry_mark_deleted_from_disk(ie);
1925 case GOT_STATUS_ADD:
1926 case GOT_STATUS_MODIFY:
1927 case GOT_STATUS_CONFLICT:
1928 err = (*a->progress_cb)(a->progress_arg,
1929 GOT_STATUS_CANNOT_DELETE, path1);
1933 case GOT_STATUS_OBSTRUCTED:
1934 err = (*a->progress_cb)(a->progress_arg, status, path1);
1942 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path,
1944 return got_error_from_errno("asprintf");
1945 ie = got_fileindex_entry_get(a->fileindex, path2);
1947 err = get_file_status(&status, &sb, ie, ondisk_path,
1951 if (status != GOT_STATUS_NO_CHANGE &&
1952 status != GOT_STATUS_MODIFY &&
1953 status != GOT_STATUS_CONFLICT &&
1954 status != GOT_STATUS_ADD) {
1955 err = (*a->progress_cb)(a->progress_arg,
1959 err = merge_blob(&local_changes_subsumed, a->worktree,
1960 NULL, ondisk_path, path2, sb.st_mode, blob2,
1961 a->commit_id2, repo,
1962 a->progress_cb, a->progress_arg);
1963 if (status == GOT_STATUS_DELETE) {
1964 err = update_blob_fileindex_entry(a->worktree,
1965 a->fileindex, ie, ondisk_path, ie->path,
1971 sb.st_mode = GOT_DEFAULT_FILE_MODE;
1972 err = install_blob(a->worktree, ondisk_path, path2,
1973 /* XXX get this from parent tree! */
1974 GOT_DEFAULT_FILE_MODE,
1975 sb.st_mode, blob2, 0, 0, repo,
1976 a->progress_cb, a->progress_arg);
1979 err = got_fileindex_entry_alloc(&ie,
1980 ondisk_path, path2, NULL, NULL);
1983 err = got_fileindex_entry_add(a->fileindex, ie);
1985 got_fileindex_entry_free(ie);
1995 struct check_merge_ok_arg {
1996 struct got_worktree *worktree;
1997 struct got_repository *repo;
2000 static const struct got_error *
2001 check_merge_ok(void *arg, struct got_fileindex_entry *ie)
2003 const struct got_error *err = NULL;
2004 struct check_merge_ok_arg *a = arg;
2005 unsigned char status;
2009 /* Reject merges into a work tree with mixed base commits. */
2010 if (memcmp(ie->commit_sha1, a->worktree->base_commit_id->sha1,
2011 SHA1_DIGEST_LENGTH))
2012 return got_error(GOT_ERR_MIXED_COMMITS);
2014 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path, ie->path)
2016 return got_error_from_errno("asprintf");
2018 /* Reject merges into a work tree with conflicted files. */
2019 err = get_file_status(&status, &sb, ie, ondisk_path, a->repo);
2022 if (status == GOT_STATUS_CONFLICT)
2023 return got_error(GOT_ERR_CONFLICTS);
2028 static const struct got_error *
2029 merge_files(struct got_worktree *worktree, struct got_fileindex *fileindex,
2030 const char *fileindex_path, struct got_object_id *commit_id1,
2031 struct got_object_id *commit_id2, struct got_repository *repo,
2032 got_worktree_checkout_cb progress_cb, void *progress_arg,
2033 got_worktree_cancel_cb cancel_cb, void *cancel_arg)
2035 const struct got_error *err = NULL, *sync_err;
2036 struct got_object_id *tree_id1 = NULL, *tree_id2 = NULL;
2037 struct got_tree_object *tree1 = NULL, *tree2 = NULL;
2038 struct merge_file_cb_arg arg;
2041 err = got_object_id_by_path(&tree_id1, repo, commit_id1,
2042 worktree->path_prefix);
2046 err = got_object_open_as_tree(&tree1, repo, tree_id1);
2051 err = got_object_id_by_path(&tree_id2, repo, commit_id2,
2052 worktree->path_prefix);
2056 err = got_object_open_as_tree(&tree2, repo, tree_id2);
2060 arg.worktree = worktree;
2061 arg.fileindex = fileindex;
2062 arg.progress_cb = progress_cb;
2063 arg.progress_arg = progress_arg;
2064 arg.cancel_cb = cancel_cb;
2065 arg.cancel_arg = cancel_arg;
2066 arg.commit_id2 = commit_id2;
2067 err = got_diff_tree(tree1, tree2, "", "", repo, merge_file_cb, &arg);
2068 sync_err = sync_fileindex(fileindex, fileindex_path);
2069 if (sync_err && err == NULL)
2073 got_object_tree_close(tree1);
2075 got_object_tree_close(tree2);
2079 const struct got_error *
2080 got_worktree_merge_files(struct got_worktree *worktree,
2081 struct got_object_id *commit_id1, struct got_object_id *commit_id2,
2082 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
2083 void *progress_arg, got_worktree_cancel_cb cancel_cb, void *cancel_arg)
2085 const struct got_error *err, *unlockerr;
2086 char *fileindex_path = NULL;
2087 struct got_fileindex *fileindex = NULL;
2088 struct check_merge_ok_arg mok_arg;
2090 err = lock_worktree(worktree, LOCK_EX);
2094 err = open_fileindex(&fileindex, &fileindex_path, worktree);
2098 mok_arg.worktree = worktree;
2099 mok_arg.repo = repo;
2100 err = got_fileindex_for_each_entry_safe(fileindex, check_merge_ok,
2105 err = merge_files(worktree, fileindex, fileindex_path, commit_id1,
2106 commit_id2, repo, progress_cb, progress_arg, cancel_cb, cancel_arg);
2109 got_fileindex_free(fileindex);
2110 free(fileindex_path);
2111 unlockerr = lock_worktree(worktree, LOCK_SH);
2112 if (unlockerr && err == NULL)
2117 struct diff_dir_cb_arg {
2118 struct got_fileindex *fileindex;
2119 struct got_worktree *worktree;
2120 const char *status_path;
2121 size_t status_path_len;
2122 struct got_repository *repo;
2123 got_worktree_status_cb status_cb;
2125 got_worktree_cancel_cb cancel_cb;
2129 static const struct got_error *
2130 report_file_status(struct got_fileindex_entry *ie, const char *abspath,
2131 got_worktree_status_cb status_cb, void *status_arg,
2132 struct got_repository *repo)
2134 const struct got_error *err = NULL;
2135 unsigned char status = GOT_STATUS_NO_CHANGE;
2137 struct got_object_id blob_id, commit_id;
2139 err = get_file_status(&status, &sb, ie, abspath, repo);
2140 if (err == NULL && status != GOT_STATUS_NO_CHANGE) {
2141 memcpy(blob_id.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
2142 memcpy(commit_id.sha1, ie->commit_sha1, SHA1_DIGEST_LENGTH);
2143 err = (*status_cb)(status_arg, status, ie->path, &blob_id,
2149 static const struct got_error *
2150 status_old_new(void *arg, struct got_fileindex_entry *ie,
2151 struct dirent *de, const char *parent_path)
2153 const struct got_error *err = NULL;
2154 struct diff_dir_cb_arg *a = arg;
2157 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
2158 return got_error(GOT_ERR_CANCELLED);
2160 if (got_path_cmp(parent_path, a->status_path) != 0 &&
2161 !got_path_is_child(parent_path, a->status_path, a->status_path_len))
2164 if (parent_path[0]) {
2165 if (asprintf(&abspath, "%s/%s/%s", a->worktree->root_path,
2166 parent_path, de->d_name) == -1)
2167 return got_error_from_errno("asprintf");
2169 if (asprintf(&abspath, "%s/%s", a->worktree->root_path,
2171 return got_error_from_errno("asprintf");
2174 err = report_file_status(ie, abspath, a->status_cb, a->status_arg,
2180 static const struct got_error *
2181 status_old(void *arg, struct got_fileindex_entry *ie, const char *parent_path)
2183 struct diff_dir_cb_arg *a = arg;
2184 struct got_object_id blob_id, commit_id;
2185 unsigned char status;
2187 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
2188 return got_error(GOT_ERR_CANCELLED);
2190 if (!got_path_is_child(parent_path, a->status_path, a->status_path_len))
2193 memcpy(blob_id.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
2194 memcpy(commit_id.sha1, ie->commit_sha1, SHA1_DIGEST_LENGTH);
2195 if (got_fileindex_entry_has_file_on_disk(ie))
2196 status = GOT_STATUS_MISSING;
2198 status = GOT_STATUS_DELETE;
2199 return (*a->status_cb)(a->status_arg, status, ie->path, &blob_id,
2203 static const struct got_error *
2204 status_new(void *arg, struct dirent *de, const char *parent_path)
2206 const struct got_error *err = NULL;
2207 struct diff_dir_cb_arg *a = arg;
2210 if (a->cancel_cb && a->cancel_cb(a->cancel_arg))
2211 return got_error(GOT_ERR_CANCELLED);
2213 if (de->d_type == DT_DIR)
2216 /* XXX ignore symlinks for now */
2217 if (de->d_type == DT_LNK)
2220 if (!got_path_is_child(parent_path, a->status_path, a->status_path_len))
2223 if (parent_path[0]) {
2224 if (asprintf(&path, "%s/%s", parent_path, de->d_name) == -1)
2225 return got_error_from_errno("asprintf");
2230 err = (*a->status_cb)(a->status_arg, GOT_STATUS_UNVERSIONED, path,
2237 static const struct got_error *
2238 worktree_status(struct got_worktree *worktree, const char *path,
2239 struct got_fileindex *fileindex, struct got_repository *repo,
2240 got_worktree_status_cb status_cb, void *status_arg,
2241 got_worktree_cancel_cb cancel_cb, void *cancel_arg)
2243 const struct got_error *err = NULL;
2244 DIR *workdir = NULL;
2245 struct got_fileindex_diff_dir_cb fdiff_cb;
2246 struct diff_dir_cb_arg arg;
2247 char *ondisk_path = NULL;
2249 if (asprintf(&ondisk_path, "%s%s%s",
2250 worktree->root_path, path[0] ? "/" : "", path) == -1) {
2251 err = got_error_from_errno("asprintf");
2254 workdir = opendir(ondisk_path);
2255 if (workdir == NULL) {
2256 if (errno == ENOTDIR || errno == ENOENT) {
2257 struct got_fileindex_entry *ie;
2258 ie = got_fileindex_entry_get(fileindex, path);
2260 err = got_error(GOT_ERR_BAD_PATH);
2263 err = report_file_status(ie, ondisk_path,
2264 status_cb, status_arg, repo);
2267 err = got_error_from_errno2("opendir", ondisk_path);
2271 fdiff_cb.diff_old_new = status_old_new;
2272 fdiff_cb.diff_old = status_old;
2273 fdiff_cb.diff_new = status_new;
2274 arg.fileindex = fileindex;
2275 arg.worktree = worktree;
2276 arg.status_path = path;
2277 arg.status_path_len = strlen(path);
2279 arg.status_cb = status_cb;
2280 arg.status_arg = status_arg;
2281 arg.cancel_cb = cancel_cb;
2282 arg.cancel_arg = cancel_arg;
2283 err = got_fileindex_diff_dir(fileindex, workdir, worktree->root_path,
2284 path, repo, &fdiff_cb, &arg);
2292 const struct got_error *
2293 got_worktree_status(struct got_worktree *worktree, const char *path,
2294 struct got_repository *repo, got_worktree_status_cb status_cb,
2295 void *status_arg, got_worktree_cancel_cb cancel_cb, void *cancel_arg)
2297 const struct got_error *err = NULL;
2298 char *fileindex_path = NULL;
2299 struct got_fileindex *fileindex = NULL;
2301 err = open_fileindex(&fileindex, &fileindex_path, worktree);
2305 err = worktree_status(worktree, path, fileindex, repo,
2306 status_cb, status_arg, cancel_cb, cancel_arg);
2307 free(fileindex_path);
2308 got_fileindex_free(fileindex);
2312 const struct got_error *
2313 got_worktree_resolve_path(char **wt_path, struct got_worktree *worktree,
2316 const struct got_error *err = NULL;
2317 char *resolved, *cwd = NULL, *path = NULL;
2322 resolved = realpath(arg, NULL);
2323 if (resolved == NULL) {
2324 if (errno != ENOENT)
2325 return got_error_from_errno2("realpath", arg);
2326 cwd = getcwd(NULL, 0);
2328 return got_error_from_errno("getcwd");
2329 if (asprintf(&resolved, "%s/%s", cwd, arg) == -1) {
2330 err = got_error_from_errno("asprintf");
2335 if (strncmp(got_worktree_get_root_path(worktree), resolved,
2336 strlen(got_worktree_get_root_path(worktree)))) {
2337 err = got_error(GOT_ERR_BAD_PATH);
2341 if (strlen(resolved) > strlen(got_worktree_get_root_path(worktree))) {
2342 err = got_path_skip_common_ancestor(&path,
2343 got_worktree_get_root_path(worktree), resolved);
2349 err = got_error_from_errno("strdup");
2354 /* XXX status walk can't deal with trailing slash! */
2356 while (path[len - 1] == '/') {
2357 path[len - 1] = '\0';
2370 static const struct got_error *
2371 schedule_addition(const char *ondisk_path, struct got_fileindex *fileindex,
2372 const char *relpath, got_worktree_status_cb status_cb, void *status_arg,
2373 struct got_repository *repo)
2375 const struct got_error *err = NULL;
2376 struct got_fileindex_entry *ie;
2378 /* Re-adding an existing entry is a no-op. */
2379 if (got_fileindex_entry_get(fileindex, relpath) != NULL)
2382 err = got_fileindex_entry_alloc(&ie, ondisk_path, relpath, NULL, NULL);
2386 err = got_fileindex_entry_add(fileindex, ie);
2388 got_fileindex_entry_free(ie);
2392 return report_file_status(ie, relpath, status_cb, status_arg, repo);
2395 const struct got_error *
2396 got_worktree_schedule_add(struct got_worktree *worktree,
2397 struct got_pathlist_head *ondisk_paths,
2398 got_worktree_status_cb status_cb, void *status_arg,
2399 struct got_repository *repo)
2401 struct got_fileindex *fileindex = NULL;
2402 char *fileindex_path = NULL;
2403 const struct got_error *err = NULL, *sync_err, *unlockerr;
2404 struct got_pathlist_entry *pe;
2406 err = lock_worktree(worktree, LOCK_EX);
2410 err = open_fileindex(&fileindex, &fileindex_path, worktree);
2414 TAILQ_FOREACH(pe, ondisk_paths, entry) {
2416 err = got_path_skip_common_ancestor(&relpath,
2417 got_worktree_get_root_path(worktree), pe->path);
2420 err = schedule_addition(pe->path, fileindex, relpath,
2421 status_cb, status_arg, repo);
2426 sync_err = sync_fileindex(fileindex, fileindex_path);
2427 if (sync_err && err == NULL)
2430 free(fileindex_path);
2432 got_fileindex_free(fileindex);
2433 unlockerr = lock_worktree(worktree, LOCK_SH);
2434 if (unlockerr && err == NULL)
2439 static const struct got_error *
2440 schedule_for_deletion(const char *ondisk_path, struct got_fileindex *fileindex,
2441 const char *relpath, int delete_local_mods,
2442 got_worktree_status_cb status_cb, void *status_arg,
2443 struct got_repository *repo)
2445 const struct got_error *err = NULL;
2446 struct got_fileindex_entry *ie = NULL;
2447 unsigned char status;
2450 ie = got_fileindex_entry_get(fileindex, relpath);
2452 return got_error(GOT_ERR_BAD_PATH);
2454 err = get_file_status(&status, &sb, ie, ondisk_path, repo);
2458 if (status != GOT_STATUS_NO_CHANGE) {
2459 if (status == GOT_STATUS_DELETE)
2460 return got_error_set_errno(ENOENT, ondisk_path);
2461 if (status != GOT_STATUS_MODIFY)
2462 return got_error(GOT_ERR_FILE_STATUS);
2463 if (!delete_local_mods)
2464 return got_error(GOT_ERR_FILE_MODIFIED);
2467 if (unlink(ondisk_path) != 0)
2468 return got_error_from_errno2("unlink", ondisk_path);
2470 got_fileindex_entry_mark_deleted_from_disk(ie);
2471 return report_file_status(ie, ondisk_path, status_cb, status_arg, repo);
2474 const struct got_error *
2475 got_worktree_schedule_delete(struct got_worktree *worktree,
2476 struct got_pathlist_head *ondisk_paths, int delete_local_mods,
2477 got_worktree_status_cb status_cb, void *status_arg,
2478 struct got_repository *repo)
2480 struct got_fileindex *fileindex = NULL;
2481 char *fileindex_path = NULL;
2482 const struct got_error *err = NULL, *sync_err, *unlockerr;
2483 struct got_pathlist_entry *pe;
2485 err = lock_worktree(worktree, LOCK_EX);
2489 err = open_fileindex(&fileindex, &fileindex_path, worktree);
2493 TAILQ_FOREACH(pe, ondisk_paths, entry) {
2495 err = got_path_skip_common_ancestor(&relpath,
2496 got_worktree_get_root_path(worktree), pe->path);
2499 err = schedule_for_deletion(pe->path, fileindex, relpath,
2500 delete_local_mods, status_cb, status_arg, repo);
2505 sync_err = sync_fileindex(fileindex, fileindex_path);
2506 if (sync_err && err == NULL)
2509 free(fileindex_path);
2511 got_fileindex_free(fileindex);
2512 unlockerr = lock_worktree(worktree, LOCK_SH);
2513 if (unlockerr && err == NULL)
2518 static const struct got_error *
2519 revert_file(struct got_worktree *worktree, struct got_fileindex *fileindex,
2520 const char *ondisk_path,
2521 got_worktree_checkout_cb progress_cb, void *progress_arg,
2522 struct got_repository *repo)
2524 const struct got_error *err = NULL;
2525 char *relpath = NULL, *parent_path = NULL;
2526 struct got_fileindex_entry *ie;
2527 struct got_tree_object *tree = NULL;
2528 struct got_object_id *tree_id = NULL;
2529 const struct got_tree_entry *te;
2530 char *tree_path = NULL, *te_name;
2531 struct got_blob_object *blob = NULL;
2532 unsigned char status;
2535 err = got_path_skip_common_ancestor(&relpath,
2536 got_worktree_get_root_path(worktree), ondisk_path);
2540 ie = got_fileindex_entry_get(fileindex, relpath);
2542 err = got_error(GOT_ERR_BAD_PATH);
2546 /* Construct in-repository path of tree which contains this blob. */
2547 err = got_path_dirname(&parent_path, ie->path);
2549 if (err->code != GOT_ERR_BAD_PATH)
2551 parent_path = strdup("/");
2552 if (parent_path == NULL) {
2553 err = got_error_from_errno("strdup");
2557 if (got_path_is_root_dir(worktree->path_prefix)) {
2558 tree_path = strdup(parent_path);
2559 if (tree_path == NULL) {
2560 err = got_error_from_errno("strdup");
2564 if (got_path_is_root_dir(parent_path)) {
2565 tree_path = strdup(worktree->path_prefix);
2566 if (tree_path == NULL) {
2567 err = got_error_from_errno("strdup");
2571 if (asprintf(&tree_path, "%s/%s",
2572 worktree->path_prefix, parent_path) == -1) {
2573 err = got_error_from_errno("asprintf");
2579 err = got_object_id_by_path(&tree_id, repo, worktree->base_commit_id,
2584 err = got_object_open_as_tree(&tree, repo, tree_id);
2588 te_name = basename(ie->path);
2589 if (te_name == NULL) {
2590 err = got_error_from_errno2("basename", ie->path);
2594 err = get_file_status(&status, &sb, ie, ondisk_path, repo);
2598 te = got_object_tree_find_entry(tree, te_name);
2599 if (te == NULL && status != GOT_STATUS_ADD) {
2600 err = got_error(GOT_ERR_NO_TREE_ENTRY);
2605 case GOT_STATUS_ADD:
2606 err = (*progress_cb)(progress_arg, GOT_STATUS_REVERT, ie->path);
2609 got_fileindex_entry_remove(fileindex, ie);
2611 case GOT_STATUS_DELETE:
2612 case GOT_STATUS_MODIFY:
2613 case GOT_STATUS_CONFLICT:
2614 case GOT_STATUS_MISSING: {
2615 struct got_object_id id;
2616 memcpy(id.sha1, ie->blob_sha1, SHA1_DIGEST_LENGTH);
2617 err = got_object_open_as_blob(&blob, repo, &id, 8192);
2620 err = install_blob(worktree, ondisk_path, ie->path,
2621 te->mode, sb.st_mode, blob, 0, 1, repo, progress_cb,
2625 if (status == GOT_STATUS_DELETE) {
2626 err = update_blob_fileindex_entry(worktree,
2627 fileindex, ie, ondisk_path, ie->path, blob, 1);
2641 got_object_blob_close(blob);
2643 got_object_tree_close(tree);
2648 const struct got_error *
2649 got_worktree_revert(struct got_worktree *worktree,
2650 struct got_pathlist_head *ondisk_paths,
2651 got_worktree_checkout_cb progress_cb, void *progress_arg,
2652 struct got_repository *repo)
2654 struct got_fileindex *fileindex = NULL;
2655 char *fileindex_path = NULL;
2656 const struct got_error *err = NULL, *unlockerr = NULL;
2657 const struct got_error *sync_err = NULL;
2658 struct got_pathlist_entry *pe;
2660 err = lock_worktree(worktree, LOCK_EX);
2664 err = open_fileindex(&fileindex, &fileindex_path, worktree);
2668 TAILQ_FOREACH(pe, ondisk_paths, entry) {
2669 err = revert_file(worktree, fileindex, pe->path,
2670 progress_cb, progress_arg, repo);
2674 sync_err = sync_fileindex(fileindex, fileindex_path);
2675 if (sync_err && err == NULL)
2678 free(fileindex_path);
2680 got_fileindex_free(fileindex);
2681 unlockerr = lock_worktree(worktree, LOCK_SH);
2682 if (unlockerr && err == NULL)
2688 free_commitable(struct got_commitable *ct)
2691 free(ct->in_repo_path);
2692 free(ct->ondisk_path);
2694 free(ct->base_blob_id);
2695 free(ct->base_commit_id);
2699 struct collect_commitables_arg {
2700 struct got_pathlist_head *commitable_paths;
2701 struct got_repository *repo;
2702 struct got_worktree *worktree;
2705 static const struct got_error *
2706 collect_commitables(void *arg, unsigned char status, const char *relpath,
2707 struct got_object_id *blob_id, struct got_object_id *commit_id)
2709 struct collect_commitables_arg *a = arg;
2710 const struct got_error *err = NULL;
2711 struct got_commitable *ct = NULL;
2712 struct got_pathlist_entry *new = NULL;
2713 char *parent_path = NULL, *path = NULL;
2716 if (status == GOT_STATUS_CONFLICT)
2717 return got_error(GOT_ERR_COMMIT_CONFLICT);
2719 if (status != GOT_STATUS_MODIFY && status != GOT_STATUS_ADD &&
2720 status != GOT_STATUS_DELETE)
2723 if (asprintf(&path, "/%s", relpath) == -1) {
2724 err = got_error_from_errno("asprintf");
2727 if (strcmp(path, "/") == 0) {
2728 parent_path = strdup("");
2729 if (parent_path == NULL)
2730 return got_error_from_errno("strdup");
2732 err = got_path_dirname(&parent_path, path);
2737 ct = calloc(1, sizeof(*ct));
2739 err = got_error_from_errno("calloc");
2743 if (asprintf(&ct->ondisk_path, "%s/%s", a->worktree->root_path,
2745 err = got_error_from_errno("asprintf");
2748 if (status == GOT_STATUS_DELETE) {
2749 sb.st_mode = GOT_DEFAULT_FILE_MODE;
2751 if (lstat(ct->ondisk_path, &sb) != 0) {
2752 err = got_error_from_errno2("lstat", ct->ondisk_path);
2755 ct->mode = sb.st_mode;
2758 if (asprintf(&ct->in_repo_path, "%s%s%s", a->worktree->path_prefix,
2759 got_path_is_root_dir(a->worktree->path_prefix) ? "" : "/",
2761 err = got_error_from_errno("asprintf");
2765 ct->status = status;
2766 ct->blob_id = NULL; /* will be filled in when blob gets created */
2767 if (ct->status != GOT_STATUS_ADD) {
2768 ct->base_blob_id = got_object_id_dup(blob_id);
2769 if (ct->base_blob_id == NULL) {
2770 err = got_error_from_errno("got_object_id_dup");
2773 ct->base_commit_id = got_object_id_dup(commit_id);
2774 if (ct->base_commit_id == NULL) {
2775 err = got_error_from_errno("got_object_id_dup");
2779 ct->path = strdup(path);
2780 if (ct->path == NULL) {
2781 err = got_error_from_errno("strdup");
2784 err = got_pathlist_insert(&new, a->commitable_paths, ct->path, ct);
2786 if (ct && (err || new == NULL))
2787 free_commitable(ct);
2793 static const struct got_error *write_tree(struct got_object_id **,
2794 struct got_tree_object *, const char *, struct got_pathlist_head *,
2795 got_worktree_status_cb status_cb, void *status_arg,
2796 struct got_repository *);
2798 static const struct got_error *
2799 write_subtree(struct got_object_id **new_subtree_id,
2800 struct got_tree_entry *te, const char *parent_path,
2801 struct got_pathlist_head *commitable_paths,
2802 got_worktree_status_cb status_cb, void *status_arg,
2803 struct got_repository *repo)
2805 const struct got_error *err = NULL;
2806 struct got_tree_object *subtree;
2809 if (asprintf(&subpath, "%s%s%s", parent_path,
2810 got_path_is_root_dir(parent_path) ? "" : "/", te->name) == -1)
2811 return got_error_from_errno("asprintf");
2813 err = got_object_open_as_tree(&subtree, repo, te->id);
2817 err = write_tree(new_subtree_id, subtree, subpath, commitable_paths,
2818 status_cb, status_arg, repo);
2819 got_object_tree_close(subtree);
2824 static const struct got_error *
2825 match_ct_parent_path(int *match, struct got_commitable *ct, const char *path)
2827 const struct got_error *err = NULL;
2828 char *ct_parent_path = NULL;
2832 if (strchr(ct->path, '/') == NULL) {
2833 *match = got_path_is_root_dir(path);
2837 err = got_path_dirname(&ct_parent_path, ct->path);
2840 *match = (strcmp(path, ct_parent_path) == 0);
2841 free(ct_parent_path);
2846 get_ct_file_mode(struct got_commitable *ct)
2848 return S_IFREG | (ct->mode & ((S_IRWXU | S_IRWXG | S_IRWXO)));
2851 static const struct got_error *
2852 alloc_modified_blob_tree_entry(struct got_tree_entry **new_te,
2853 struct got_tree_entry *te, struct got_commitable *ct)
2855 const struct got_error *err = NULL;
2859 err = got_object_tree_entry_dup(new_te, te);
2863 (*new_te)->mode = get_ct_file_mode(ct);
2865 free((*new_te)->id);
2866 (*new_te)->id = got_object_id_dup(ct->blob_id);
2867 if ((*new_te)->id == NULL) {
2868 err = got_error_from_errno("got_object_id_dup");
2872 if (err && *new_te) {
2873 got_object_tree_entry_close(*new_te);
2879 static const struct got_error *
2880 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
2881 struct got_commitable *ct)
2883 const struct got_error *err = NULL;
2888 *new_te = calloc(1, sizeof(**new_te));
2889 if (*new_te == NULL)
2890 return got_error_from_errno("calloc");
2892 ct_name = basename(ct->path);
2893 if (ct_name == NULL) {
2894 err = got_error_from_errno2("basename", ct->path);
2897 (*new_te)->name = strdup(ct_name);
2898 if ((*new_te)->name == NULL) {
2899 err = got_error_from_errno("strdup");
2903 (*new_te)->mode = get_ct_file_mode(ct);
2905 (*new_te)->id = got_object_id_dup(ct->blob_id);
2906 if ((*new_te)->id == NULL) {
2907 err = got_error_from_errno("got_object_id_dup");
2911 if (err && *new_te) {
2912 got_object_tree_entry_close(*new_te);
2918 static const struct got_error *
2919 insert_tree_entry(struct got_tree_entry *new_te,
2920 struct got_pathlist_head *paths)
2922 const struct got_error *err = NULL;
2923 struct got_pathlist_entry *new_pe;
2925 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
2929 return got_error(GOT_ERR_TREE_DUP_ENTRY);
2933 static const struct got_error *
2934 report_ct_status(struct got_commitable *ct,
2935 got_worktree_status_cb status_cb, void *status_arg)
2937 const char *ct_path = ct->path;
2938 while (ct_path[0] == '/')
2940 return (*status_cb)(status_arg, ct->status, ct_path, ct->blob_id, NULL);
2943 static const struct got_error *
2944 match_modified_subtree(int *modified, struct got_tree_entry *te,
2945 const char *base_tree_path, struct got_pathlist_head *commitable_paths)
2947 const struct got_error *err = NULL;
2948 struct got_pathlist_entry *pe;
2953 if (asprintf(&te_path, "%s%s%s", base_tree_path,
2954 got_path_is_root_dir(base_tree_path) ? "" : "/",
2956 return got_error_from_errno("asprintf");
2958 TAILQ_FOREACH(pe, commitable_paths, entry) {
2959 struct got_commitable *ct = pe->data;
2960 *modified = got_path_is_child(ct->in_repo_path, te_path,
2970 static const struct got_error *
2971 match_deleted_or_modified_ct(struct got_commitable **ctp,
2972 struct got_tree_entry *te, const char *base_tree_path,
2973 struct got_pathlist_head *commitable_paths)
2975 const struct got_error *err = NULL;
2976 struct got_pathlist_entry *pe;
2980 TAILQ_FOREACH(pe, commitable_paths, entry) {
2981 struct got_commitable *ct = pe->data;
2982 char *ct_name = NULL;
2985 if (ct->status != GOT_STATUS_MODIFY &&
2986 ct->status != GOT_STATUS_DELETE)
2989 if (got_object_id_cmp(ct->base_blob_id, te->id) != 0)
2992 err = match_ct_parent_path(&path_matches, ct, base_tree_path);
2998 ct_name = basename(pe->path);
2999 if (ct_name == NULL)
3000 return got_error_from_errno2("basename", pe->path);
3002 if (strcmp(te->name, ct_name) != 0)
3012 static const struct got_error *
3013 make_subtree_for_added_blob(struct got_tree_entry **new_tep,
3014 const char *child_path, const char *path_base_tree,
3015 struct got_pathlist_head *commitable_paths,
3016 got_worktree_status_cb status_cb, void *status_arg,
3017 struct got_repository *repo)
3019 const struct got_error *err = NULL;
3020 struct got_tree_entry *new_te;
3025 if (asprintf(&subtree_path, "%s%s%s", path_base_tree,
3026 got_path_is_root_dir(path_base_tree) ? "" : "/",
3028 return got_error_from_errno("asprintf");
3030 new_te = calloc(1, sizeof(*new_te));
3031 new_te->mode = S_IFDIR;
3032 new_te->name = strdup(child_path);
3033 if (new_te->name == NULL) {
3034 err = got_error_from_errno("strdup");
3035 got_object_tree_entry_close(new_te);
3038 err = write_tree(&new_te->id, NULL, subtree_path,
3039 commitable_paths, status_cb, status_arg, repo);
3041 got_object_tree_entry_close(new_te);
3051 static const struct got_error *
3052 write_tree(struct got_object_id **new_tree_id,
3053 struct got_tree_object *base_tree, const char *path_base_tree,
3054 struct got_pathlist_head *commitable_paths,
3055 got_worktree_status_cb status_cb, void *status_arg,
3056 struct got_repository *repo)
3058 const struct got_error *err = NULL;
3059 const struct got_tree_entries *base_entries = NULL;
3060 struct got_pathlist_head paths;
3061 struct got_tree_entries new_tree_entries;
3062 struct got_tree_entry *te, *new_te = NULL;
3063 struct got_pathlist_entry *pe;
3066 new_tree_entries.nentries = 0;
3067 SIMPLEQ_INIT(&new_tree_entries.head);
3069 /* Insert, and recurse into, newly added entries first. */
3070 TAILQ_FOREACH(pe, commitable_paths, entry) {
3071 struct got_commitable *ct = pe->data;
3072 char *child_path = NULL, *slash;
3074 if (ct->status != GOT_STATUS_ADD ||
3075 (ct->flags & GOT_COMMITABLE_ADDED))
3078 if (!got_path_is_child(pe->path, path_base_tree,
3079 strlen(path_base_tree)))
3082 err = got_path_skip_common_ancestor(&child_path, path_base_tree,
3087 slash = strchr(child_path, '/');
3088 if (slash == NULL) {
3089 err = alloc_added_blob_tree_entry(&new_te, ct);
3092 err = report_ct_status(ct, status_cb, status_arg);
3095 ct->flags |= GOT_COMMITABLE_ADDED;
3096 err = insert_tree_entry(new_te, &paths);
3100 *slash = '\0'; /* trim trailing path components */
3101 if (base_tree == NULL ||
3102 got_object_tree_find_entry(base_tree, child_path)
3104 err = make_subtree_for_added_blob(&new_te,
3105 child_path, path_base_tree,
3106 commitable_paths, status_cb, status_arg,
3110 err = insert_tree_entry(new_te, &paths);
3118 /* Handle modified and deleted entries. */
3119 base_entries = got_object_tree_get_entries(base_tree);
3120 SIMPLEQ_FOREACH(te, &base_entries->head, entry) {
3121 struct got_commitable *ct = NULL;
3123 if (S_ISDIR(te->mode)) {
3125 err = got_object_tree_entry_dup(&new_te, te);
3128 err = match_modified_subtree(&modified, te,
3129 path_base_tree, commitable_paths);
3132 /* Avoid recursion into unmodified subtrees. */
3135 err = write_subtree(&new_te->id, te,
3136 path_base_tree, commitable_paths,
3137 status_cb, status_arg, repo);
3141 err = insert_tree_entry(new_te, &paths);
3147 err = match_deleted_or_modified_ct(&ct, te,
3148 path_base_tree, commitable_paths);
3150 /* NB: Deleted entries get dropped here. */
3151 if (ct->status == GOT_STATUS_MODIFY) {
3152 err = alloc_modified_blob_tree_entry(
3156 err = insert_tree_entry(new_te, &paths);
3160 err = report_ct_status(ct, status_cb,
3165 /* Entry is unchanged; just copy it. */
3166 err = got_object_tree_entry_dup(&new_te, te);
3169 err = insert_tree_entry(new_te, &paths);
3176 /* Write new list of entries; deleted entries have been dropped. */
3177 TAILQ_FOREACH(pe, &paths, entry) {
3178 struct got_tree_entry *te = pe->data;
3179 new_tree_entries.nentries++;
3180 SIMPLEQ_INSERT_TAIL(&new_tree_entries.head, te, entry);
3182 err = got_object_tree_create(new_tree_id, &new_tree_entries, repo);
3184 got_object_tree_entries_close(&new_tree_entries);
3185 got_pathlist_free(&paths);
3189 static const struct got_error *
3190 update_fileindex_after_commit(struct got_pathlist_head *commitable_paths,
3191 struct got_object_id *new_base_commit_id, struct got_fileindex *fileindex)
3193 const struct got_error *err = NULL;
3194 struct got_pathlist_entry *pe;
3196 TAILQ_FOREACH(pe, commitable_paths, entry) {
3197 struct got_fileindex_entry *ie;
3198 struct got_commitable *ct = pe->data;
3200 ie = got_fileindex_entry_get(fileindex, pe->path);
3202 if (ct->status == GOT_STATUS_DELETE) {
3203 got_fileindex_entry_remove(fileindex, ie);
3204 got_fileindex_entry_free(ie);
3206 err = got_fileindex_entry_update(ie,
3207 ct->ondisk_path, ct->blob_id->sha1,
3208 new_base_commit_id->sha1, 1);
3210 err = got_fileindex_entry_alloc(&ie,
3211 ct->ondisk_path, pe->path, ct->blob_id->sha1,
3212 new_base_commit_id->sha1);
3215 err = got_fileindex_entry_add(fileindex, ie);
3223 static const struct got_error *
3224 check_ct_out_of_date(struct got_commitable *ct, struct got_repository *repo,
3225 struct got_object_id *head_commit_id)
3227 const struct got_error *err = NULL;
3228 struct got_object_id *id_in_head = NULL, *id = NULL;
3229 struct got_commit_object *commit = NULL;
3231 const char *ct_path = ct->in_repo_path;
3233 while (ct_path[0] == '/')
3237 * Ensure that no modifications were made to files *and their parents*
3238 * in commits between the file's base commit and the branch head.
3240 * Checking the parents is important for detecting conflicting tree
3241 * configurations (files or parent folders might have been moved,
3242 * deleted, added again, etc.). Such changes need to be merged with
3243 * local changes before a commit can occur.
3245 * The implication is that the file's (parent) entry in the root
3246 * directory must have the same ID in all relevant commits.
3248 if (ct->status != GOT_STATUS_ADD) {
3249 struct got_object_qid *pid;
3251 struct got_object_id *root_entry_id = NULL;
3253 /* Trivial case: base commit == head commit */
3254 if (got_object_id_cmp(ct->base_commit_id, head_commit_id) == 0)
3257 /* Compute the path to the root directory's entry. */
3258 path = strdup(ct_path);
3260 err = got_error_from_errno("strdup");
3263 slash = strchr(path, '/');
3267 err = got_object_open_as_commit(&commit, repo, head_commit_id);
3271 err = got_object_id_by_path(&root_entry_id, repo,
3272 head_commit_id, path);
3276 pid = SIMPLEQ_FIRST(got_object_commit_get_parent_ids(commit));
3278 struct got_commit_object *pcommit;
3280 err = got_object_id_by_path(&id, repo, pid->id, path);
3282 if (err->code != GOT_ERR_NO_TREE_ENTRY)
3288 err = got_object_id_by_path(&id, repo, pid->id, path);
3292 if (got_object_id_cmp(id, root_entry_id) != 0) {
3293 err = got_error(GOT_ERR_COMMIT_OUT_OF_DATE);
3297 if (got_object_id_cmp(pid->id, ct->base_commit_id) == 0)
3298 break; /* all relevant commits scanned */
3300 err = got_object_open_as_commit(&pcommit, repo,
3305 got_object_commit_close(commit);
3307 pid = SIMPLEQ_FIRST(got_object_commit_get_parent_ids(
3311 /* Require that added files don't exist in the branch head. */
3312 err = got_object_id_by_path(&id_in_head, repo, head_commit_id,
3314 if (err && err->code != GOT_ERR_NO_TREE_ENTRY)
3316 err = id_in_head ? got_error(GOT_ERR_COMMIT_OUT_OF_DATE) : NULL;
3320 got_object_commit_close(commit);
3327 const struct got_error *
3328 commit_worktree(struct got_object_id **new_commit_id,
3329 struct got_pathlist_head *commitable_paths,
3330 struct got_object_id *head_commit_id, struct got_worktree *worktree,
3331 const char *ondisk_path, const char *author, const char *committer,
3332 got_worktree_commit_msg_cb commit_msg_cb, void *commit_arg,
3333 got_worktree_status_cb status_cb, void *status_arg,
3334 struct got_repository *repo)
3336 const struct got_error *err = NULL, *unlockerr = NULL;
3337 struct got_pathlist_entry *pe;
3338 const char *head_ref_name = NULL;
3339 struct got_commit_object *head_commit = NULL;
3340 struct got_reference *head_ref2 = NULL;
3341 struct got_object_id *head_commit_id2 = NULL;
3342 struct got_tree_object *head_tree = NULL;
3343 struct got_object_id *new_tree_id = NULL;
3344 struct got_object_id_queue parent_ids;
3345 struct got_object_qid *pid = NULL;
3346 char *logmsg = NULL;
3348 *new_commit_id = NULL;
3350 SIMPLEQ_INIT(&parent_ids);
3352 err = got_object_open_as_commit(&head_commit, repo, head_commit_id);
3356 err = got_object_open_as_tree(&head_tree, repo, head_commit->tree_id);
3360 if (commit_msg_cb != NULL) {
3361 err = commit_msg_cb(commitable_paths, &logmsg, commit_arg);
3366 if (logmsg == NULL || strlen(logmsg) == 0) {
3367 err = got_error(GOT_ERR_COMMIT_MSG_EMPTY);
3371 /* Create blobs from added and modified files and record their IDs. */
3372 TAILQ_FOREACH(pe, commitable_paths, entry) {
3373 struct got_commitable *ct = pe->data;
3376 if (ct->status != GOT_STATUS_ADD &&
3377 ct->status != GOT_STATUS_MODIFY)
3380 if (asprintf(&ondisk_path, "%s/%s",
3381 worktree->root_path, pe->path) == -1) {
3382 err = got_error_from_errno("asprintf");
3385 err = got_object_blob_create(&ct->blob_id, ondisk_path, repo);
3391 /* Recursively write new tree objects. */
3392 err = write_tree(&new_tree_id, head_tree, "/", commitable_paths,
3393 status_cb, status_arg, repo);
3397 err = got_object_qid_alloc(&pid, worktree->base_commit_id);
3400 SIMPLEQ_INSERT_TAIL(&parent_ids, pid, entry);
3401 err = got_object_commit_create(new_commit_id, new_tree_id, &parent_ids,
3402 1, author, time(NULL), committer, time(NULL), logmsg, repo);
3403 got_object_qid_free(pid);
3409 /* Check if a concurrent commit to our branch has occurred. */
3410 head_ref_name = got_worktree_get_head_ref_name(worktree);
3411 if (head_ref_name == NULL) {
3412 err = got_error_from_errno("got_worktree_get_head_ref_name");
3415 /* Lock the reference here to prevent concurrent modification. */
3416 err = got_ref_open(&head_ref2, repo, head_ref_name, 1);
3419 err = got_ref_resolve(&head_commit_id2, repo, head_ref2);
3422 if (got_object_id_cmp(head_commit_id, head_commit_id2) != 0) {
3423 err = got_error(GOT_ERR_COMMIT_HEAD_CHANGED);
3426 /* Update branch head in repository. */
3427 err = got_ref_change_ref(head_ref2, *new_commit_id);
3430 err = got_ref_write(head_ref2, repo);
3434 err = got_worktree_set_base_commit_id(worktree, repo, *new_commit_id);
3438 err = ref_base_commit(worktree, repo);
3443 got_object_tree_close(head_tree);
3445 got_object_commit_close(head_commit);
3446 free(head_commit_id2);
3448 unlockerr = got_ref_unlock(head_ref2);
3449 if (unlockerr && err == NULL)
3451 got_ref_close(head_ref2);
3456 const struct got_error *
3457 got_worktree_commit(struct got_object_id **new_commit_id,
3458 struct got_worktree *worktree, const char *ondisk_path,
3459 const char *author, const char *committer,
3460 got_worktree_commit_msg_cb commit_msg_cb, void *commit_arg,
3461 got_worktree_status_cb status_cb, void *status_arg,
3462 struct got_repository *repo)
3464 const struct got_error *err = NULL, *unlockerr = NULL, *sync_err;
3465 struct got_fileindex *fileindex = NULL;
3466 char *fileindex_path = NULL, *relpath = NULL;
3467 struct got_pathlist_head commitable_paths;
3468 struct collect_commitables_arg cc_arg;
3469 struct got_pathlist_entry *pe;
3470 struct got_reference *head_ref = NULL;
3471 struct got_object_id *head_commit_id = NULL;
3473 *new_commit_id = NULL;
3475 TAILQ_INIT(&commitable_paths);
3477 err = lock_worktree(worktree, LOCK_EX);
3481 err = got_ref_open(&head_ref, repo, worktree->head_ref_name, 0);
3485 err = got_ref_resolve(&head_commit_id, repo, head_ref);
3490 err = got_path_skip_common_ancestor(&relpath,
3491 worktree->root_path, ondisk_path);
3496 err = open_fileindex(&fileindex, &fileindex_path, worktree);
3500 cc_arg.commitable_paths = &commitable_paths;
3501 cc_arg.worktree = worktree;
3503 err = worktree_status(worktree, relpath ? relpath : "",
3504 fileindex, repo, collect_commitables, &cc_arg, NULL, NULL);
3508 if (TAILQ_EMPTY(&commitable_paths)) {
3509 err = got_error(GOT_ERR_COMMIT_NO_CHANGES);
3513 TAILQ_FOREACH(pe, &commitable_paths, entry) {
3514 struct got_commitable *ct = pe->data;
3515 err = check_ct_out_of_date(ct, repo, head_commit_id);
3520 err = commit_worktree(new_commit_id, &commitable_paths,
3521 head_commit_id, worktree, ondisk_path, author, committer,
3522 commit_msg_cb, commit_arg, status_cb, status_arg, repo);
3526 err = update_fileindex_after_commit(&commitable_paths, *new_commit_id,
3528 sync_err = sync_fileindex(fileindex, fileindex_path);
3529 if (sync_err && err == NULL)
3533 got_fileindex_free(fileindex);
3534 free(fileindex_path);
3536 unlockerr = lock_worktree(worktree, LOCK_SH);
3537 if (unlockerr && err == NULL)
3539 TAILQ_FOREACH(pe, &commitable_paths, entry) {
3540 struct got_commitable *ct = pe->data;
3541 free_commitable(ct);
3543 got_pathlist_free(&commitable_paths);
3548 got_commitable_get_path(struct got_commitable *ct)
3554 got_commitable_get_status(struct got_commitable *ct)
3559 struct check_rebase_ok_arg {
3560 struct got_worktree *worktree;
3561 struct got_repository *repo;
3562 int rebase_in_progress;
3565 static const struct got_error *
3566 check_rebase_ok(void *arg, struct got_fileindex_entry *ie)
3568 const struct got_error *err = NULL;
3569 struct check_rebase_ok_arg *a = arg;
3570 unsigned char status;
3574 if (!a->rebase_in_progress) {
3575 /* Reject rebase of a work tree with mixed base commits. */
3576 if (memcmp(ie->commit_sha1, a->worktree->base_commit_id->sha1,
3577 SHA1_DIGEST_LENGTH))
3578 return got_error(GOT_ERR_MIXED_COMMITS);
3581 if (asprintf(&ondisk_path, "%s/%s", a->worktree->root_path, ie->path)
3583 return got_error_from_errno("asprintf");
3585 /* Reject rebase of a work tree with modified or conflicted files. */
3586 err = get_file_status(&status, &sb, ie, ondisk_path, a->repo);
3591 if (a->rebase_in_progress) {
3592 if (status == GOT_STATUS_CONFLICT)
3593 return got_error(GOT_ERR_CONFLICTS);
3594 } else if (status != GOT_STATUS_NO_CHANGE)
3595 return got_error(GOT_ERR_MODIFIED);
3600 const struct got_error *
3601 got_worktree_rebase_prepare(struct got_reference **new_base_branch_ref,
3602 struct got_reference **tmp_branch, struct got_worktree *worktree,
3603 struct got_reference *branch, struct got_repository *repo)
3605 const struct got_error *err = NULL;
3606 char *tmp_branch_name = NULL, *new_base_branch_ref_name = NULL;
3607 char *branch_ref_name = NULL;
3608 struct got_fileindex *fileindex = NULL;
3609 char *fileindex_path = NULL;
3610 struct check_rebase_ok_arg ok_arg;
3611 struct got_reference *wt_branch = NULL, *branch_ref = NULL;
3613 *new_base_branch_ref = NULL;
3616 err = lock_worktree(worktree, LOCK_EX);
3620 err = open_fileindex(&fileindex, &fileindex_path, worktree);
3624 ok_arg.worktree = worktree;
3626 ok_arg.rebase_in_progress = 0;
3627 err = got_fileindex_for_each_entry_safe(fileindex, check_rebase_ok,
3632 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
3636 err = get_newbase_symref_name(&new_base_branch_ref_name, worktree);
3640 err = get_rebase_branch_symref_name(&branch_ref_name, worktree);
3644 err = got_ref_open(&wt_branch, repo, worktree->head_ref_name,
3649 err = got_ref_alloc_symref(new_base_branch_ref,
3650 new_base_branch_ref_name, wt_branch);
3653 err = got_ref_write(*new_base_branch_ref, repo);
3657 /* TODO Lock original branch's ref while rebasing? */
3659 err = got_ref_alloc_symref(&branch_ref, branch_ref_name, branch);
3663 err = got_ref_write(branch_ref, repo);
3667 err = got_ref_alloc(tmp_branch, tmp_branch_name,
3668 worktree->base_commit_id);
3671 err = got_ref_write(*tmp_branch, repo);
3675 err = got_worktree_set_head_ref(worktree, *tmp_branch);
3679 free(fileindex_path);
3681 got_fileindex_free(fileindex);
3682 free(tmp_branch_name);
3683 free(new_base_branch_ref_name);
3684 free(branch_ref_name);
3686 got_ref_close(branch_ref);
3688 got_ref_close(wt_branch);
3690 if (*new_base_branch_ref) {
3691 got_ref_close(*new_base_branch_ref);
3692 *new_base_branch_ref = NULL;
3695 got_ref_close(*tmp_branch);
3698 lock_worktree(worktree, LOCK_SH);
3703 const struct got_error *
3704 got_worktree_rebase_continue(struct got_object_id **commit_id,
3705 struct got_reference **new_base_branch, struct got_reference **tmp_branch,
3706 struct got_reference **branch, struct got_worktree *worktree,
3707 struct got_repository *repo)
3709 const struct got_error *err;
3710 char *commit_ref_name = NULL, *new_base_branch_ref_name = NULL;
3711 char *tmp_branch_name = NULL, *branch_ref_name = NULL;
3712 struct got_reference *commit_ref = NULL, *branch_ref = NULL;
3716 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
3720 err = get_rebase_branch_symref_name(&branch_ref_name, worktree);
3724 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
3728 err = get_newbase_symref_name(&new_base_branch_ref_name, worktree);
3732 err = got_ref_open(&branch_ref, repo, branch_ref_name, 0);
3736 err = got_ref_open(branch, repo,
3737 got_ref_get_symref_target(branch_ref), 0);
3741 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
3745 err = got_ref_resolve(commit_id, repo, commit_ref);
3749 err = got_ref_open(new_base_branch, repo,
3750 new_base_branch_ref_name, 0);
3754 err = got_ref_open(tmp_branch, repo, tmp_branch_name, 0);
3758 free(commit_ref_name);
3759 free(branch_ref_name);
3761 got_ref_close(commit_ref);
3763 got_ref_close(branch_ref);
3768 got_ref_close(*tmp_branch);
3771 if (*new_base_branch) {
3772 got_ref_close(*new_base_branch);
3773 *new_base_branch = NULL;
3776 got_ref_close(*branch);
3783 const struct got_error *
3784 got_worktree_rebase_in_progress(int *in_progress, struct got_worktree *worktree)
3786 const struct got_error *err;
3787 char *tmp_branch_name = NULL;
3789 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
3793 *in_progress = (strcmp(tmp_branch_name, worktree->head_ref_name) == 0);
3794 free(tmp_branch_name);
3798 static const struct got_error *
3799 collect_rebase_commit_msg(struct got_pathlist_head *commitable_paths,
3800 char **logmsg, void *arg)
3806 static const struct got_error *
3807 rebase_status(void *arg, unsigned char status, const char *path,
3808 struct got_object_id *blob_id, struct got_object_id *commit_id)
3813 struct collect_merged_paths_arg {
3814 got_worktree_checkout_cb progress_cb;
3816 struct got_pathlist_head *merged_paths;
3819 static const struct got_error *
3820 collect_merged_paths(void *arg, unsigned char status, const char *path)
3822 const struct got_error *err;
3823 struct collect_merged_paths_arg *a = arg;
3825 struct got_pathlist_entry *new;
3827 err = (*a->progress_cb)(a->progress_arg, status, path);
3831 if (status != GOT_STATUS_MERGE &&
3832 status != GOT_STATUS_ADD &&
3833 status != GOT_STATUS_DELETE &&
3834 status != GOT_STATUS_CONFLICT)
3839 return got_error_from_errno("strdup");
3841 err = got_pathlist_insert(&new, a->merged_paths, p, NULL);
3842 if (err || new == NULL)
3848 got_worktree_rebase_pathlist_free(struct got_pathlist_head *merged_paths)
3850 struct got_pathlist_entry *pe;
3852 TAILQ_FOREACH(pe, merged_paths, entry)
3853 free((char *)pe->path);
3855 got_pathlist_free(merged_paths);
3858 static const struct got_error *
3859 store_commit_id(const char *commit_ref_name, struct got_object_id *commit_id,
3860 struct got_repository *repo)
3862 const struct got_error *err;
3863 struct got_reference *commit_ref = NULL;
3865 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
3867 if (err->code != GOT_ERR_NOT_REF)
3869 err = got_ref_alloc(&commit_ref, commit_ref_name, commit_id);
3872 err = got_ref_write(commit_ref, repo);
3876 struct got_object_id *stored_id;
3879 err = got_ref_resolve(&stored_id, repo, commit_ref);
3882 cmp = got_object_id_cmp(commit_id, stored_id);
3885 err = got_error(GOT_ERR_REBASE_COMMITID);
3891 got_ref_close(commit_ref);
3895 static const struct got_error *
3896 rebase_merge_files(struct got_pathlist_head *merged_paths,
3897 const char *commit_ref_name, struct got_worktree *worktree,
3898 struct got_object_id *parent_commit_id, struct got_object_id *commit_id,
3899 struct got_repository *repo, got_worktree_checkout_cb progress_cb,
3900 void *progress_arg, got_worktree_cancel_cb cancel_cb, void *cancel_arg)
3902 const struct got_error *err;
3903 struct got_fileindex *fileindex;
3904 char *fileindex_path;
3905 struct got_reference *commit_ref = NULL;
3906 struct collect_merged_paths_arg cmp_arg;
3908 /* Work tree is locked/unlocked during rebase preparation/teardown. */
3910 err = open_fileindex(&fileindex, &fileindex_path, worktree);
3914 cmp_arg.progress_cb = progress_cb;
3915 cmp_arg.progress_arg = progress_arg;
3916 cmp_arg.merged_paths = merged_paths;
3917 err = merge_files(worktree, fileindex, fileindex_path,
3918 parent_commit_id, commit_id, repo, collect_merged_paths,
3919 &cmp_arg, cancel_cb, cancel_arg);
3920 got_fileindex_free(fileindex);
3921 free(fileindex_path);
3923 got_ref_close(commit_ref);
3927 const struct got_error *
3928 got_worktree_rebase_merge_files(struct got_pathlist_head *merged_paths,
3929 struct got_worktree *worktree, struct got_object_id *parent_commit_id,
3930 struct got_object_id *commit_id, struct got_repository *repo,
3931 got_worktree_checkout_cb progress_cb, void *progress_arg,
3932 got_worktree_cancel_cb cancel_cb, void *cancel_arg)
3934 const struct got_error *err;
3935 char *commit_ref_name;
3937 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
3941 err = store_commit_id(commit_ref_name, commit_id, repo);
3945 err = rebase_merge_files(merged_paths, commit_ref_name, worktree,
3946 parent_commit_id, commit_id, repo, progress_cb, progress_arg,
3947 cancel_cb, cancel_arg);
3949 free(commit_ref_name);
3953 const struct got_error *
3954 got_worktree_histedit_merge_files(struct got_pathlist_head *merged_paths,
3955 struct got_worktree *worktree, struct got_object_id *parent_commit_id,
3956 struct got_object_id *commit_id, struct got_repository *repo,
3957 got_worktree_checkout_cb progress_cb, void *progress_arg,
3958 got_worktree_cancel_cb cancel_cb, void *cancel_arg)
3960 const struct got_error *err;
3961 char *commit_ref_name;
3963 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
3967 err = store_commit_id(commit_ref_name, commit_id, repo);
3971 err = rebase_merge_files(merged_paths, commit_ref_name, worktree,
3972 parent_commit_id, commit_id, repo, progress_cb, progress_arg,
3973 cancel_cb, cancel_arg);
3975 free(commit_ref_name);
3979 static const struct got_error *
3980 rebase_commit(struct got_object_id **new_commit_id,
3981 struct got_pathlist_head *merged_paths, struct got_reference *commit_ref,
3982 struct got_worktree *worktree, struct got_reference *tmp_branch,
3983 struct got_commit_object *orig_commit, const char *new_logmsg,
3984 struct got_repository *repo)
3986 const struct got_error *err, *sync_err;
3987 struct got_pathlist_head commitable_paths;
3988 struct collect_commitables_arg cc_arg;
3989 struct got_fileindex *fileindex = NULL;
3990 char *fileindex_path = NULL;
3991 struct got_reference *head_ref = NULL;
3992 struct got_object_id *head_commit_id = NULL;
3993 char *logmsg = NULL;
3995 TAILQ_INIT(&commitable_paths);
3996 *new_commit_id = NULL;
3998 /* Work tree is locked/unlocked during rebase preparation/teardown. */
4000 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4004 cc_arg.commitable_paths = &commitable_paths;
4005 cc_arg.worktree = worktree;
4008 * If possible get the status of individual files directly to
4009 * avoid crawling the entire work tree once per rebased commit.
4010 * TODO: Ideally, merged_paths would contain a list of commitables
4011 * we could use so we could skip worktree_status() entirely.
4014 struct got_pathlist_entry *pe;
4015 TAILQ_FOREACH(pe, merged_paths, entry) {
4016 err = worktree_status(worktree, pe->path, fileindex,
4017 repo, collect_commitables, &cc_arg, NULL, NULL);
4022 err = worktree_status(worktree, "", fileindex, repo,
4023 collect_commitables, &cc_arg, NULL, NULL);
4028 if (TAILQ_EMPTY(&commitable_paths)) {
4029 /* No-op change; commit will be elided. */
4030 err = got_ref_delete(commit_ref, repo);
4033 err = got_error(GOT_ERR_COMMIT_NO_CHANGES);
4037 err = got_ref_open(&head_ref, repo, worktree->head_ref_name, 0);
4041 err = got_ref_resolve(&head_commit_id, repo, head_ref);
4046 logmsg = strdup(new_logmsg);
4048 logmsg = strdup(got_object_commit_get_logmsg(orig_commit));
4050 return got_error_from_errno("strdup");
4052 err = commit_worktree(new_commit_id, &commitable_paths, head_commit_id,
4053 worktree, NULL, got_object_commit_get_author(orig_commit),
4054 got_object_commit_get_committer(orig_commit),
4055 collect_rebase_commit_msg, logmsg, rebase_status, NULL, repo);
4059 err = got_ref_change_ref(tmp_branch, *new_commit_id);
4063 err = got_ref_delete(commit_ref, repo);
4067 err = update_fileindex_after_commit(&commitable_paths, *new_commit_id,
4069 sync_err = sync_fileindex(fileindex, fileindex_path);
4070 if (sync_err && err == NULL)
4074 got_fileindex_free(fileindex);
4075 free(fileindex_path);
4076 free(head_commit_id);
4078 got_ref_close(head_ref);
4080 free(*new_commit_id);
4081 *new_commit_id = NULL;
4086 const struct got_error *
4087 got_worktree_rebase_commit(struct got_object_id **new_commit_id,
4088 struct got_pathlist_head *merged_paths, struct got_worktree *worktree,
4089 struct got_reference *tmp_branch, struct got_commit_object *orig_commit,
4090 struct got_object_id *orig_commit_id, struct got_repository *repo)
4092 const struct got_error *err;
4093 char *commit_ref_name;
4094 struct got_reference *commit_ref = NULL;
4095 struct got_object_id *commit_id = NULL;
4097 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
4101 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
4104 err = got_ref_resolve(&commit_id, repo, commit_ref);
4107 if (got_object_id_cmp(commit_id, orig_commit_id) != 0) {
4108 err = got_error(GOT_ERR_REBASE_COMMITID);
4112 err = rebase_commit(new_commit_id, merged_paths, commit_ref,
4113 worktree, tmp_branch, orig_commit, NULL, repo);
4116 got_ref_close(commit_ref);
4117 free(commit_ref_name);
4122 const struct got_error *
4123 got_worktree_histedit_commit(struct got_object_id **new_commit_id,
4124 struct got_pathlist_head *merged_paths, struct got_worktree *worktree,
4125 struct got_reference *tmp_branch, struct got_commit_object *orig_commit,
4126 struct got_object_id *orig_commit_id, const char *new_logmsg,
4127 struct got_repository *repo)
4129 const struct got_error *err;
4130 char *commit_ref_name;
4131 struct got_reference *commit_ref = NULL;
4132 struct got_object_id *commit_id = NULL;
4134 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
4138 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
4141 err = got_ref_resolve(&commit_id, repo, commit_ref);
4144 if (got_object_id_cmp(commit_id, orig_commit_id) != 0) {
4145 err = got_error(GOT_ERR_HISTEDIT_COMMITID);
4149 err = rebase_commit(new_commit_id, merged_paths, commit_ref,
4150 worktree, tmp_branch, orig_commit, new_logmsg, repo);
4153 got_ref_close(commit_ref);
4154 free(commit_ref_name);
4159 const struct got_error *
4160 got_worktree_rebase_postpone(struct got_worktree *worktree)
4162 return lock_worktree(worktree, LOCK_SH);
4165 static const struct got_error *
4166 delete_ref(const char *name, struct got_repository *repo)
4168 const struct got_error *err;
4169 struct got_reference *ref;
4171 err = got_ref_open(&ref, repo, name, 0);
4173 if (err->code == GOT_ERR_NOT_REF)
4178 err = got_ref_delete(ref, repo);
4183 static const struct got_error *
4184 delete_rebase_refs(struct got_worktree *worktree, struct got_repository *repo)
4186 const struct got_error *err;
4187 char *tmp_branch_name = NULL, *new_base_branch_ref_name = NULL;
4188 char *branch_ref_name = NULL, *commit_ref_name = NULL;
4190 err = get_rebase_tmp_ref_name(&tmp_branch_name, worktree);
4193 err = delete_ref(tmp_branch_name, repo);
4197 err = get_newbase_symref_name(&new_base_branch_ref_name, worktree);
4200 err = delete_ref(new_base_branch_ref_name, repo);
4204 err = get_rebase_branch_symref_name(&branch_ref_name, worktree);
4207 err = delete_ref(branch_ref_name, repo);
4211 err = get_rebase_commit_ref_name(&commit_ref_name, worktree);
4214 err = delete_ref(commit_ref_name, repo);
4219 free(tmp_branch_name);
4220 free(new_base_branch_ref_name);
4221 free(branch_ref_name);
4222 free(commit_ref_name);
4226 const struct got_error *
4227 got_worktree_rebase_complete(struct got_worktree *worktree,
4228 struct got_reference *new_base_branch, struct got_reference *tmp_branch,
4229 struct got_reference *rebased_branch,
4230 struct got_repository *repo)
4232 const struct got_error *err, *unlockerr;
4233 struct got_object_id *new_head_commit_id = NULL;
4235 err = got_ref_resolve(&new_head_commit_id, repo, tmp_branch);
4239 err = got_ref_change_ref(rebased_branch, new_head_commit_id);
4243 err = got_ref_write(rebased_branch, repo);
4247 err = got_worktree_set_head_ref(worktree, rebased_branch);
4251 err = delete_rebase_refs(worktree, repo);
4253 free(new_head_commit_id);
4254 unlockerr = lock_worktree(worktree, LOCK_SH);
4255 if (unlockerr && err == NULL)
4260 struct collect_revertible_paths_arg {
4261 struct got_pathlist_head *revertible_paths;
4262 struct got_worktree *worktree;
4265 static const struct got_error *
4266 collect_revertible_paths(void *arg, unsigned char status, const char *relpath,
4267 struct got_object_id *blob_id, struct got_object_id *commit_id)
4269 struct collect_revertible_paths_arg *a = arg;
4270 const struct got_error *err = NULL;
4271 struct got_pathlist_entry *new = NULL;
4274 if (status != GOT_STATUS_ADD &&
4275 status != GOT_STATUS_DELETE &&
4276 status != GOT_STATUS_MODIFY &&
4277 status != GOT_STATUS_CONFLICT &&
4278 status != GOT_STATUS_MISSING)
4281 if (asprintf(&path, "%s/%s", a->worktree->root_path, relpath) == -1)
4282 return got_error_from_errno("asprintf");
4284 err = got_pathlist_insert(&new, a->revertible_paths, path, NULL);
4285 if (err || new == NULL)
4290 const struct got_error *
4291 got_worktree_rebase_abort(struct got_worktree *worktree,
4292 struct got_repository *repo, struct got_reference *new_base_branch,
4293 got_worktree_checkout_cb progress_cb, void *progress_arg)
4295 const struct got_error *err, *unlockerr, *sync_err;
4296 struct got_reference *resolved = NULL;
4297 struct got_object_id *commit_id = NULL;
4298 struct got_fileindex *fileindex = NULL;
4299 char *fileindex_path = NULL;
4300 struct got_pathlist_head revertible_paths;
4301 struct got_pathlist_entry *pe;
4302 struct collect_revertible_paths_arg crp_arg;
4303 struct got_object_id *tree_id = NULL;
4305 TAILQ_INIT(&revertible_paths);
4307 err = lock_worktree(worktree, LOCK_EX);
4311 err = got_ref_open(&resolved, repo,
4312 got_ref_get_symref_target(new_base_branch), 0);
4316 err = got_worktree_set_head_ref(worktree, resolved);
4321 * XXX commits to the base branch could have happened while
4322 * we were busy rebasing; should we store the original commit ID
4323 * when rebase begins and read it back here?
4325 err = got_ref_resolve(&commit_id, repo, resolved);
4329 err = got_worktree_set_base_commit_id(worktree, repo, commit_id);
4333 err = got_object_id_by_path(&tree_id, repo,
4334 worktree->base_commit_id, worktree->path_prefix);
4338 err = delete_rebase_refs(worktree, repo);
4342 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4346 crp_arg.revertible_paths = &revertible_paths;
4347 crp_arg.worktree = worktree;
4348 err = worktree_status(worktree, "", fileindex, repo,
4349 collect_revertible_paths, &crp_arg, NULL, NULL);
4353 TAILQ_FOREACH(pe, &revertible_paths, entry) {
4354 err = revert_file(worktree, fileindex, pe->path,
4355 progress_cb, progress_arg, repo);
4360 err = checkout_files(worktree, fileindex, "", tree_id, NULL,
4361 repo, progress_cb, progress_arg, NULL, NULL);
4363 sync_err = sync_fileindex(fileindex, fileindex_path);
4364 if (sync_err && err == NULL)
4367 got_ref_close(resolved);
4371 got_fileindex_free(fileindex);
4372 free(fileindex_path);
4373 TAILQ_FOREACH(pe, &revertible_paths, entry)
4374 free((char *)pe->path);
4375 got_pathlist_free(&revertible_paths);
4377 unlockerr = lock_worktree(worktree, LOCK_SH);
4378 if (unlockerr && err == NULL)
4383 const struct got_error *
4384 got_worktree_histedit_prepare(struct got_reference **tmp_branch,
4385 struct got_reference **branch_ref, struct got_object_id **base_commit_id,
4386 struct got_worktree *worktree, struct got_repository *repo)
4388 const struct got_error *err = NULL;
4389 char *tmp_branch_name = NULL;
4390 char *branch_ref_name = NULL;
4391 char *base_commit_ref_name = NULL;
4392 struct got_fileindex *fileindex = NULL;
4393 char *fileindex_path = NULL;
4394 struct check_rebase_ok_arg ok_arg;
4395 struct got_reference *wt_branch = NULL;
4396 struct got_reference *base_commit_ref = NULL;
4400 *base_commit_id = NULL;
4402 err = lock_worktree(worktree, LOCK_EX);
4406 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4410 ok_arg.worktree = worktree;
4412 ok_arg.rebase_in_progress = 0;
4413 err = got_fileindex_for_each_entry_safe(fileindex, check_rebase_ok,
4418 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
4422 err = get_histedit_branch_symref_name(&branch_ref_name, worktree);
4426 err = get_histedit_base_commit_ref_name(&base_commit_ref_name,
4431 err = got_ref_open(&wt_branch, repo, worktree->head_ref_name,
4436 err = got_ref_alloc_symref(branch_ref, branch_ref_name, wt_branch);
4440 err = got_ref_write(*branch_ref, repo);
4444 err = got_ref_alloc(&base_commit_ref, base_commit_ref_name,
4445 worktree->base_commit_id);
4448 err = got_ref_write(base_commit_ref, repo);
4451 *base_commit_id = got_object_id_dup(worktree->base_commit_id);
4452 if (*base_commit_id == NULL) {
4453 err = got_error_from_errno("got_object_id_dup");
4457 err = got_ref_alloc(tmp_branch, tmp_branch_name,
4458 worktree->base_commit_id);
4461 err = got_ref_write(*tmp_branch, repo);
4465 err = got_worktree_set_head_ref(worktree, *tmp_branch);
4469 free(fileindex_path);
4471 got_fileindex_free(fileindex);
4472 free(tmp_branch_name);
4473 free(branch_ref_name);
4474 free(base_commit_ref_name);
4476 got_ref_close(wt_branch);
4479 got_ref_close(*branch_ref);
4483 got_ref_close(*tmp_branch);
4486 free(*base_commit_id);
4487 lock_worktree(worktree, LOCK_SH);
4492 const struct got_error *
4493 got_worktree_histedit_postpone(struct got_worktree *worktree)
4495 return lock_worktree(worktree, LOCK_SH);
4498 const struct got_error *
4499 got_worktree_histedit_in_progress(int *in_progress,
4500 struct got_worktree *worktree)
4502 const struct got_error *err;
4503 char *tmp_branch_name = NULL;
4505 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
4509 *in_progress = (strcmp(tmp_branch_name, worktree->head_ref_name) == 0);
4510 free(tmp_branch_name);
4514 const struct got_error *
4515 got_worktree_histedit_continue(struct got_object_id **commit_id,
4516 struct got_reference **tmp_branch, struct got_reference **branch_ref,
4517 struct got_object_id **base_commit_id,
4518 struct got_worktree *worktree, struct got_repository *repo)
4520 const struct got_error *err;
4521 char *commit_ref_name = NULL, *base_commit_ref_name = NULL;
4522 char *tmp_branch_name = NULL, *branch_ref_name = NULL;
4523 struct got_reference *commit_ref = NULL;
4524 struct got_reference *base_commit_ref = NULL;
4528 *base_commit_id = NULL;
4530 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
4534 err = get_histedit_branch_symref_name(&branch_ref_name, worktree);
4538 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
4542 err = get_histedit_base_commit_ref_name(&base_commit_ref_name,
4547 err = got_ref_open(branch_ref, repo, branch_ref_name, 0);
4551 err = got_ref_open(&commit_ref, repo, commit_ref_name, 0);
4554 err = got_ref_resolve(commit_id, repo, commit_ref);
4558 err = got_ref_open(&base_commit_ref, repo, base_commit_ref_name, 0);
4561 err = got_ref_resolve(base_commit_id, repo, base_commit_ref);
4565 err = got_ref_open(tmp_branch, repo, tmp_branch_name, 0);
4569 free(commit_ref_name);
4570 free(branch_ref_name);
4572 got_ref_close(commit_ref);
4573 if (base_commit_ref)
4574 got_ref_close(base_commit_ref);
4578 free(*base_commit_id);
4579 *base_commit_id = NULL;
4581 got_ref_close(*tmp_branch);
4588 static const struct got_error *
4589 delete_histedit_refs(struct got_worktree *worktree, struct got_repository *repo)
4591 const struct got_error *err;
4592 char *tmp_branch_name = NULL, *base_commit_ref_name = NULL;
4593 char *branch_ref_name = NULL, *commit_ref_name = NULL;
4595 err = get_histedit_tmp_ref_name(&tmp_branch_name, worktree);
4598 err = delete_ref(tmp_branch_name, repo);
4602 err = get_histedit_base_commit_ref_name(&base_commit_ref_name,
4606 err = delete_ref(base_commit_ref_name, repo);
4610 err = get_histedit_branch_symref_name(&branch_ref_name, worktree);
4613 err = delete_ref(branch_ref_name, repo);
4617 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
4620 err = delete_ref(commit_ref_name, repo);
4624 free(tmp_branch_name);
4625 free(base_commit_ref_name);
4626 free(branch_ref_name);
4627 free(commit_ref_name);
4631 const struct got_error *
4632 got_worktree_histedit_abort(struct got_worktree *worktree,
4633 struct got_repository *repo, struct got_reference *branch,
4634 struct got_object_id *base_commit_id,
4635 got_worktree_checkout_cb progress_cb, void *progress_arg)
4637 const struct got_error *err, *unlockerr, *sync_err;
4638 struct got_reference *resolved = NULL;
4639 struct got_fileindex *fileindex = NULL;
4640 char *fileindex_path = NULL;
4641 struct got_pathlist_head revertible_paths;
4642 struct got_pathlist_entry *pe;
4643 struct collect_revertible_paths_arg crp_arg;
4644 struct got_object_id *tree_id = NULL;
4646 TAILQ_INIT(&revertible_paths);
4648 err = lock_worktree(worktree, LOCK_EX);
4652 err = got_ref_open(&resolved, repo,
4653 got_ref_get_symref_target(branch), 0);
4657 err = got_worktree_set_head_ref(worktree, resolved);
4661 err = got_worktree_set_base_commit_id(worktree, repo, base_commit_id);
4665 err = got_object_id_by_path(&tree_id, repo, base_commit_id,
4666 worktree->path_prefix);
4670 err = delete_histedit_refs(worktree, repo);
4674 err = open_fileindex(&fileindex, &fileindex_path, worktree);
4678 crp_arg.revertible_paths = &revertible_paths;
4679 crp_arg.worktree = worktree;
4680 err = worktree_status(worktree, "", fileindex, repo,
4681 collect_revertible_paths, &crp_arg, NULL, NULL);
4685 TAILQ_FOREACH(pe, &revertible_paths, entry) {
4686 err = revert_file(worktree, fileindex, pe->path,
4687 progress_cb, progress_arg, repo);
4692 err = checkout_files(worktree, fileindex, "", tree_id, NULL,
4693 repo, progress_cb, progress_arg, NULL, NULL);
4695 sync_err = sync_fileindex(fileindex, fileindex_path);
4696 if (sync_err && err == NULL)
4699 got_ref_close(resolved);
4702 got_fileindex_free(fileindex);
4703 free(fileindex_path);
4704 TAILQ_FOREACH(pe, &revertible_paths, entry)
4705 free((char *)pe->path);
4706 got_pathlist_free(&revertible_paths);
4708 unlockerr = lock_worktree(worktree, LOCK_SH);
4709 if (unlockerr && err == NULL)
4714 const struct got_error *
4715 got_worktree_histedit_complete(struct got_worktree *worktree,
4716 struct got_reference *tmp_branch, struct got_reference *edited_branch,
4717 struct got_repository *repo)
4719 const struct got_error *err, *unlockerr;
4720 struct got_object_id *new_head_commit_id = NULL;
4721 struct got_reference *resolved = NULL;
4723 err = got_ref_resolve(&new_head_commit_id, repo, tmp_branch);
4727 err = got_ref_open(&resolved, repo,
4728 got_ref_get_symref_target(edited_branch), 0);
4732 err = got_ref_change_ref(resolved, new_head_commit_id);
4736 err = got_ref_write(resolved, repo);
4740 err = got_worktree_set_head_ref(worktree, resolved);
4744 err = delete_histedit_refs(worktree, repo);
4746 free(new_head_commit_id);
4747 unlockerr = lock_worktree(worktree, LOCK_SH);
4748 if (unlockerr && err == NULL)
4753 const struct got_error *
4754 got_worktree_histedit_skip_commit(struct got_worktree *worktree,
4755 struct got_object_id *commit_id, struct got_repository *repo)
4757 const struct got_error *err;
4758 char *commit_ref_name;
4760 err = get_histedit_commit_ref_name(&commit_ref_name, worktree);
4764 err = store_commit_id(commit_ref_name, commit_id, repo);
4768 err = delete_ref(commit_ref_name, repo);
4770 free(commit_ref_name);