6 #include "xdiff-interface.h"
10 #include "notes-merge.h"
12 #include "notes-utils.h"
14 struct notes_merge_pair
{
15 unsigned char obj
[20], base
[20], local
[20], remote
[20];
18 void init_notes_merge_options(struct notes_merge_options
*o
)
20 memset(o
, 0, sizeof(struct notes_merge_options
));
21 strbuf_init(&(o
->commit_msg
), 0);
22 o
->verbosity
= NOTES_MERGE_VERBOSITY_DEFAULT
;
25 static int path_to_sha1(const char *path
, unsigned char *sha1
)
29 while (*path
&& i
< 40) {
31 hex_sha1
[i
++] = *path
;
36 return get_sha1_hex(hex_sha1
, sha1
);
39 static int verify_notes_filepair(struct diff_filepair
*p
, unsigned char *sha1
)
42 case DIFF_STATUS_MODIFIED
:
43 assert(p
->one
->mode
== p
->two
->mode
);
44 assert(!is_null_oid(&p
->one
->oid
));
45 assert(!is_null_oid(&p
->two
->oid
));
47 case DIFF_STATUS_ADDED
:
48 assert(is_null_oid(&p
->one
->oid
));
50 case DIFF_STATUS_DELETED
:
51 assert(is_null_oid(&p
->two
->oid
));
56 assert(!strcmp(p
->one
->path
, p
->two
->path
));
57 return path_to_sha1(p
->one
->path
, sha1
);
60 static struct notes_merge_pair
*find_notes_merge_pair_pos(
61 struct notes_merge_pair
*list
, int len
, unsigned char *obj
,
62 int insert_new
, int *occupied
)
65 * Both diff_tree_remote() and diff_tree_local() tend to process
66 * merge_pairs in ascending order. Therefore, cache last returned
67 * index, and search sequentially from there until the appropriate
70 * Since inserts only happen from diff_tree_remote() (which mainly
71 * _appends_), we don't care that inserting into the middle of the
72 * list is expensive (using memmove()).
74 static int last_index
;
75 int i
= last_index
< len
? last_index
: len
- 1;
76 int prev_cmp
= 0, cmp
= -1;
77 while (i
>= 0 && i
< len
) {
78 cmp
= hashcmp(obj
, list
[i
].obj
);
79 if (!cmp
) /* obj belongs @ i */
81 else if (cmp
< 0 && prev_cmp
<= 0) /* obj belongs < i */
83 else if (cmp
< 0) /* obj belongs between i-1 and i */
85 else if (cmp
> 0 && prev_cmp
>= 0) /* obj belongs > i */
87 else /* if (cmp > 0) */ { /* obj belongs between i and i+1 */
95 /* obj belongs at, or immediately preceding, index i (0 <= i <= len) */
101 if (insert_new
&& i
< len
) {
102 memmove(list
+ i
+ 1, list
+ i
,
103 (len
- i
) * sizeof(struct notes_merge_pair
));
104 memset(list
+ i
, 0, sizeof(struct notes_merge_pair
));
111 static unsigned char uninitialized
[20] =
112 "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" \
113 "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff";
115 static struct notes_merge_pair
*diff_tree_remote(struct notes_merge_options
*o
,
116 const unsigned char *base
,
117 const unsigned char *remote
,
120 struct diff_options opt
;
121 struct notes_merge_pair
*changes
;
124 trace_printf("\tdiff_tree_remote(base = %.7s, remote = %.7s)\n",
125 sha1_to_hex(base
), sha1_to_hex(remote
));
128 DIFF_OPT_SET(&opt
, RECURSIVE
);
129 opt
.output_format
= DIFF_FORMAT_NO_OUTPUT
;
130 diff_setup_done(&opt
);
131 diff_tree_sha1(base
, remote
, "", &opt
);
134 changes
= xcalloc(diff_queued_diff
.nr
, sizeof(struct notes_merge_pair
));
136 for (i
= 0; i
< diff_queued_diff
.nr
; i
++) {
137 struct diff_filepair
*p
= diff_queued_diff
.queue
[i
];
138 struct notes_merge_pair
*mp
;
140 unsigned char obj
[20];
142 if (verify_notes_filepair(p
, obj
)) {
143 trace_printf("\t\tCannot merge entry '%s' (%c): "
144 "%.7s -> %.7s. Skipping!\n", p
->one
->path
,
145 p
->status
, oid_to_hex(&p
->one
->oid
),
146 oid_to_hex(&p
->two
->oid
));
149 mp
= find_notes_merge_pair_pos(changes
, len
, obj
, 1, &occupied
);
151 /* We've found an addition/deletion pair */
152 assert(!hashcmp(mp
->obj
, obj
));
153 if (is_null_oid(&p
->one
->oid
)) { /* addition */
154 assert(is_null_sha1(mp
->remote
));
155 hashcpy(mp
->remote
, p
->two
->oid
.hash
);
156 } else if (is_null_oid(&p
->two
->oid
)) { /* deletion */
157 assert(is_null_sha1(mp
->base
));
158 hashcpy(mp
->base
, p
->one
->oid
.hash
);
160 assert(!"Invalid existing change recorded");
162 hashcpy(mp
->obj
, obj
);
163 hashcpy(mp
->base
, p
->one
->oid
.hash
);
164 hashcpy(mp
->local
, uninitialized
);
165 hashcpy(mp
->remote
, p
->two
->oid
.hash
);
168 trace_printf("\t\tStored remote change for %s: %.7s -> %.7s\n",
169 sha1_to_hex(mp
->obj
), sha1_to_hex(mp
->base
),
170 sha1_to_hex(mp
->remote
));
173 free_pathspec(&opt
.pathspec
);
179 static void diff_tree_local(struct notes_merge_options
*o
,
180 struct notes_merge_pair
*changes
, int len
,
181 const unsigned char *base
,
182 const unsigned char *local
)
184 struct diff_options opt
;
187 trace_printf("\tdiff_tree_local(len = %i, base = %.7s, local = %.7s)\n",
188 len
, sha1_to_hex(base
), sha1_to_hex(local
));
191 DIFF_OPT_SET(&opt
, RECURSIVE
);
192 opt
.output_format
= DIFF_FORMAT_NO_OUTPUT
;
193 diff_setup_done(&opt
);
194 diff_tree_sha1(base
, local
, "", &opt
);
197 for (i
= 0; i
< diff_queued_diff
.nr
; i
++) {
198 struct diff_filepair
*p
= diff_queued_diff
.queue
[i
];
199 struct notes_merge_pair
*mp
;
201 unsigned char obj
[20];
203 if (verify_notes_filepair(p
, obj
)) {
204 trace_printf("\t\tCannot merge entry '%s' (%c): "
205 "%.7s -> %.7s. Skipping!\n", p
->one
->path
,
206 p
->status
, oid_to_hex(&p
->one
->oid
),
207 oid_to_hex(&p
->two
->oid
));
210 mp
= find_notes_merge_pair_pos(changes
, len
, obj
, 0, &match
);
212 trace_printf("\t\tIgnoring local-only change for %s: "
213 "%.7s -> %.7s\n", sha1_to_hex(obj
),
214 oid_to_hex(&p
->one
->oid
),
215 oid_to_hex(&p
->two
->oid
));
219 assert(!hashcmp(mp
->obj
, obj
));
220 if (is_null_oid(&p
->two
->oid
)) { /* deletion */
222 * Either this is a true deletion (1), or it is part
223 * of an A/D pair (2), or D/A pair (3):
225 * (1) mp->local is uninitialized; set it to null_sha1
226 * (2) mp->local is not uninitialized; don't touch it
227 * (3) mp->local is uninitialized; set it to null_sha1
228 * (will be overwritten by following addition)
230 if (!hashcmp(mp
->local
, uninitialized
))
232 } else if (is_null_oid(&p
->one
->oid
)) { /* addition */
234 * Either this is a true addition (1), or it is part
235 * of an A/D pair (2), or D/A pair (3):
237 * (1) mp->local is uninitialized; set to p->two->sha1
238 * (2) mp->local is uninitialized; set to p->two->sha1
239 * (3) mp->local is null_sha1; set to p->two->sha1
241 assert(is_null_sha1(mp
->local
) ||
242 !hashcmp(mp
->local
, uninitialized
));
243 hashcpy(mp
->local
, p
->two
->oid
.hash
);
244 } else { /* modification */
246 * This is a true modification. p->one->sha1 shall
247 * match mp->base, and mp->local shall be uninitialized.
248 * Set mp->local to p->two->sha1.
250 assert(!hashcmp(p
->one
->oid
.hash
, mp
->base
));
251 assert(!hashcmp(mp
->local
, uninitialized
));
252 hashcpy(mp
->local
, p
->two
->oid
.hash
);
254 trace_printf("\t\tStored local change for %s: %.7s -> %.7s\n",
255 sha1_to_hex(mp
->obj
), sha1_to_hex(mp
->base
),
256 sha1_to_hex(mp
->local
));
259 free_pathspec(&opt
.pathspec
);
262 static void check_notes_merge_worktree(struct notes_merge_options
*o
)
264 if (!o
->has_worktree
) {
266 * Must establish NOTES_MERGE_WORKTREE.
267 * Abort if NOTES_MERGE_WORKTREE already exists
269 if (file_exists(git_path(NOTES_MERGE_WORKTREE
)) &&
270 !is_empty_dir(git_path(NOTES_MERGE_WORKTREE
))) {
271 if (advice_resolve_conflict
)
272 die("You have not concluded your previous "
273 "notes merge (%s exists).\nPlease, use "
274 "'git notes merge --commit' or 'git notes "
275 "merge --abort' to commit/abort the "
276 "previous merge before you start a new "
277 "notes merge.", git_path("NOTES_MERGE_*"));
279 die("You have not concluded your notes merge "
280 "(%s exists).", git_path("NOTES_MERGE_*"));
283 if (safe_create_leading_directories_const(git_path(
284 NOTES_MERGE_WORKTREE
"/.test")))
285 die_errno("unable to create directory %s",
286 git_path(NOTES_MERGE_WORKTREE
));
288 } else if (!file_exists(git_path(NOTES_MERGE_WORKTREE
)))
289 /* NOTES_MERGE_WORKTREE should already be established */
290 die("missing '%s'. This should not happen",
291 git_path(NOTES_MERGE_WORKTREE
));
294 static void write_buf_to_worktree(const unsigned char *obj
,
295 const char *buf
, unsigned long size
)
298 char *path
= git_pathdup(NOTES_MERGE_WORKTREE
"/%s", sha1_to_hex(obj
));
299 if (safe_create_leading_directories_const(path
))
300 die_errno("unable to create directory for '%s'", path
);
301 if (file_exists(path
))
302 die("found existing file at '%s'", path
);
304 fd
= open(path
, O_WRONLY
| O_TRUNC
| O_CREAT
, 0666);
306 die_errno("failed to open '%s'", path
);
309 long ret
= write_in_full(fd
, buf
, size
);
314 die_errno("notes-merge");
316 die("notes-merge: disk full?");
326 static void write_note_to_worktree(const unsigned char *obj
,
327 const unsigned char *note
)
329 enum object_type type
;
331 void *buf
= read_sha1_file(note
, &type
, &size
);
334 die("cannot read note %s for object %s",
335 sha1_to_hex(note
), sha1_to_hex(obj
));
336 if (type
!= OBJ_BLOB
)
337 die("blob expected in note %s for object %s",
338 sha1_to_hex(note
), sha1_to_hex(obj
));
339 write_buf_to_worktree(obj
, buf
, size
);
343 static int ll_merge_in_worktree(struct notes_merge_options
*o
,
344 struct notes_merge_pair
*p
)
346 mmbuffer_t result_buf
;
347 mmfile_t base
, local
, remote
;
350 read_mmblob(&base
, p
->base
);
351 read_mmblob(&local
, p
->local
);
352 read_mmblob(&remote
, p
->remote
);
354 status
= ll_merge(&result_buf
, sha1_to_hex(p
->obj
), &base
, NULL
,
355 &local
, o
->local_ref
, &remote
, o
->remote_ref
, NULL
);
361 if ((status
< 0) || !result_buf
.ptr
)
362 die("Failed to execute internal merge");
364 write_buf_to_worktree(p
->obj
, result_buf
.ptr
, result_buf
.size
);
365 free(result_buf
.ptr
);
370 static int merge_one_change_manual(struct notes_merge_options
*o
,
371 struct notes_merge_pair
*p
,
372 struct notes_tree
*t
)
374 const char *lref
= o
->local_ref
? o
->local_ref
: "local version";
375 const char *rref
= o
->remote_ref
? o
->remote_ref
: "remote version";
377 trace_printf("\t\t\tmerge_one_change_manual(obj = %.7s, base = %.7s, "
378 "local = %.7s, remote = %.7s)\n",
379 sha1_to_hex(p
->obj
), sha1_to_hex(p
->base
),
380 sha1_to_hex(p
->local
), sha1_to_hex(p
->remote
));
382 /* add "Conflicts:" section to commit message first time through */
383 if (!o
->has_worktree
)
384 strbuf_addstr(&(o
->commit_msg
), "\n\nConflicts:\n");
386 strbuf_addf(&(o
->commit_msg
), "\t%s\n", sha1_to_hex(p
->obj
));
388 if (o
->verbosity
>= 2)
389 printf("Auto-merging notes for %s\n", sha1_to_hex(p
->obj
));
390 check_notes_merge_worktree(o
);
391 if (is_null_sha1(p
->local
)) {
392 /* D/F conflict, checkout p->remote */
393 assert(!is_null_sha1(p
->remote
));
394 if (o
->verbosity
>= 1)
395 printf("CONFLICT (delete/modify): Notes for object %s "
396 "deleted in %s and modified in %s. Version from %s "
398 sha1_to_hex(p
->obj
), lref
, rref
, rref
);
399 write_note_to_worktree(p
->obj
, p
->remote
);
400 } else if (is_null_sha1(p
->remote
)) {
401 /* D/F conflict, checkout p->local */
402 assert(!is_null_sha1(p
->local
));
403 if (o
->verbosity
>= 1)
404 printf("CONFLICT (delete/modify): Notes for object %s "
405 "deleted in %s and modified in %s. Version from %s "
407 sha1_to_hex(p
->obj
), rref
, lref
, lref
);
408 write_note_to_worktree(p
->obj
, p
->local
);
410 /* "regular" conflict, checkout result of ll_merge() */
411 const char *reason
= "content";
412 if (is_null_sha1(p
->base
))
414 assert(!is_null_sha1(p
->local
));
415 assert(!is_null_sha1(p
->remote
));
416 if (o
->verbosity
>= 1)
417 printf("CONFLICT (%s): Merge conflict in notes for "
418 "object %s\n", reason
, sha1_to_hex(p
->obj
));
419 ll_merge_in_worktree(o
, p
);
422 trace_printf("\t\t\tremoving from partial merge result\n");
423 remove_note(t
, p
->obj
);
428 static int merge_one_change(struct notes_merge_options
*o
,
429 struct notes_merge_pair
*p
, struct notes_tree
*t
)
432 * Return 0 if change is successfully resolved (stored in notes_tree).
433 * Return 1 is change results in a conflict (NOT stored in notes_tree,
434 * but instead written to NOTES_MERGE_WORKTREE with conflict markers).
436 switch (o
->strategy
) {
437 case NOTES_MERGE_RESOLVE_MANUAL
:
438 return merge_one_change_manual(o
, p
, t
);
439 case NOTES_MERGE_RESOLVE_OURS
:
440 if (o
->verbosity
>= 2)
441 printf("Using local notes for %s\n",
442 sha1_to_hex(p
->obj
));
445 case NOTES_MERGE_RESOLVE_THEIRS
:
446 if (o
->verbosity
>= 2)
447 printf("Using remote notes for %s\n",
448 sha1_to_hex(p
->obj
));
449 if (add_note(t
, p
->obj
, p
->remote
, combine_notes_overwrite
))
450 die("BUG: combine_notes_overwrite failed");
452 case NOTES_MERGE_RESOLVE_UNION
:
453 if (o
->verbosity
>= 2)
454 printf("Concatenating local and remote notes for %s\n",
455 sha1_to_hex(p
->obj
));
456 if (add_note(t
, p
->obj
, p
->remote
, combine_notes_concatenate
))
457 die("failed to concatenate notes "
458 "(combine_notes_concatenate)");
460 case NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ
:
461 if (o
->verbosity
>= 2)
462 printf("Concatenating unique lines in local and remote "
463 "notes for %s\n", sha1_to_hex(p
->obj
));
464 if (add_note(t
, p
->obj
, p
->remote
, combine_notes_cat_sort_uniq
))
465 die("failed to concatenate notes "
466 "(combine_notes_cat_sort_uniq)");
469 die("Unknown strategy (%i).", o
->strategy
);
472 static int merge_changes(struct notes_merge_options
*o
,
473 struct notes_merge_pair
*changes
, int *num_changes
,
474 struct notes_tree
*t
)
476 int i
, conflicts
= 0;
478 trace_printf("\tmerge_changes(num_changes = %i)\n", *num_changes
);
479 for (i
= 0; i
< *num_changes
; i
++) {
480 struct notes_merge_pair
*p
= changes
+ i
;
481 trace_printf("\t\t%.7s: %.7s -> %.7s/%.7s\n",
482 sha1_to_hex(p
->obj
), sha1_to_hex(p
->base
),
483 sha1_to_hex(p
->local
), sha1_to_hex(p
->remote
));
485 if (!hashcmp(p
->base
, p
->remote
)) {
486 /* no remote change; nothing to do */
487 trace_printf("\t\t\tskipping (no remote change)\n");
488 } else if (!hashcmp(p
->local
, p
->remote
)) {
489 /* same change in local and remote; nothing to do */
490 trace_printf("\t\t\tskipping (local == remote)\n");
491 } else if (!hashcmp(p
->local
, uninitialized
) ||
492 !hashcmp(p
->local
, p
->base
)) {
493 /* no local change; adopt remote change */
494 trace_printf("\t\t\tno local change, adopted remote\n");
495 if (add_note(t
, p
->obj
, p
->remote
,
496 combine_notes_overwrite
))
497 die("BUG: combine_notes_overwrite failed");
499 /* need file-level merge between local and remote */
500 trace_printf("\t\t\tneed content-level merge\n");
501 conflicts
+= merge_one_change(o
, p
, t
);
508 static int merge_from_diffs(struct notes_merge_options
*o
,
509 const unsigned char *base
,
510 const unsigned char *local
,
511 const unsigned char *remote
, struct notes_tree
*t
)
513 struct notes_merge_pair
*changes
;
514 int num_changes
, conflicts
;
516 trace_printf("\tmerge_from_diffs(base = %.7s, local = %.7s, "
517 "remote = %.7s)\n", sha1_to_hex(base
), sha1_to_hex(local
),
518 sha1_to_hex(remote
));
520 changes
= diff_tree_remote(o
, base
, remote
, &num_changes
);
521 diff_tree_local(o
, changes
, num_changes
, base
, local
);
523 conflicts
= merge_changes(o
, changes
, &num_changes
, t
);
526 if (o
->verbosity
>= 4)
528 "Merge result: %i unmerged notes and a dirty notes tree\n" :
529 "Merge result: %i unmerged notes and a clean notes tree\n",
532 return conflicts
? -1 : 1;
535 int notes_merge(struct notes_merge_options
*o
,
536 struct notes_tree
*local_tree
,
537 unsigned char *result_sha1
)
539 unsigned char local_sha1
[20], remote_sha1
[20];
540 struct commit
*local
, *remote
;
541 struct commit_list
*bases
= NULL
;
542 const unsigned char *base_sha1
, *base_tree_sha1
;
545 assert(o
->local_ref
&& o
->remote_ref
);
546 assert(!strcmp(o
->local_ref
, local_tree
->ref
));
547 hashclr(result_sha1
);
549 trace_printf("notes_merge(o->local_ref = %s, o->remote_ref = %s)\n",
550 o
->local_ref
, o
->remote_ref
);
552 /* Dereference o->local_ref into local_sha1 */
553 if (read_ref_full(o
->local_ref
, 0, local_sha1
, NULL
))
554 die("Failed to resolve local notes ref '%s'", o
->local_ref
);
555 else if (!check_refname_format(o
->local_ref
, 0) &&
556 is_null_sha1(local_sha1
))
557 local
= NULL
; /* local_sha1 == null_sha1 indicates unborn ref */
558 else if (!(local
= lookup_commit_reference(local_sha1
)))
559 die("Could not parse local commit %s (%s)",
560 sha1_to_hex(local_sha1
), o
->local_ref
);
561 trace_printf("\tlocal commit: %.7s\n", sha1_to_hex(local_sha1
));
563 /* Dereference o->remote_ref into remote_sha1 */
564 if (get_sha1(o
->remote_ref
, remote_sha1
)) {
566 * Failed to get remote_sha1. If o->remote_ref looks like an
567 * unborn ref, perform the merge using an empty notes tree.
569 if (!check_refname_format(o
->remote_ref
, 0)) {
570 hashclr(remote_sha1
);
573 die("Failed to resolve remote notes ref '%s'",
576 } else if (!(remote
= lookup_commit_reference(remote_sha1
))) {
577 die("Could not parse remote commit %s (%s)",
578 sha1_to_hex(remote_sha1
), o
->remote_ref
);
580 trace_printf("\tremote commit: %.7s\n", sha1_to_hex(remote_sha1
));
582 if (!local
&& !remote
)
583 die("Cannot merge empty notes ref (%s) into empty notes ref "
584 "(%s)", o
->remote_ref
, o
->local_ref
);
586 /* result == remote commit */
587 hashcpy(result_sha1
, remote_sha1
);
591 /* result == local commit */
592 hashcpy(result_sha1
, local_sha1
);
595 assert(local
&& remote
);
597 /* Find merge bases */
598 bases
= get_merge_bases(local
, remote
);
600 base_sha1
= null_sha1
;
601 base_tree_sha1
= EMPTY_TREE_SHA1_BIN
;
602 if (o
->verbosity
>= 4)
603 printf("No merge base found; doing history-less merge\n");
604 } else if (!bases
->next
) {
605 base_sha1
= bases
->item
->object
.oid
.hash
;
606 base_tree_sha1
= bases
->item
->tree
->object
.oid
.hash
;
607 if (o
->verbosity
>= 4)
608 printf("One merge base found (%.7s)\n",
609 sha1_to_hex(base_sha1
));
611 /* TODO: How to handle multiple merge-bases? */
612 base_sha1
= bases
->item
->object
.oid
.hash
;
613 base_tree_sha1
= bases
->item
->tree
->object
.oid
.hash
;
614 if (o
->verbosity
>= 3)
615 printf("Multiple merge bases found. Using the first "
616 "(%.7s)\n", sha1_to_hex(base_sha1
));
619 if (o
->verbosity
>= 4)
620 printf("Merging remote commit %.7s into local commit %.7s with "
621 "merge-base %.7s\n", oid_to_hex(&remote
->object
.oid
),
622 oid_to_hex(&local
->object
.oid
),
623 sha1_to_hex(base_sha1
));
625 if (!hashcmp(remote
->object
.oid
.hash
, base_sha1
)) {
626 /* Already merged; result == local commit */
627 if (o
->verbosity
>= 2)
628 printf("Already up-to-date!\n");
629 hashcpy(result_sha1
, local
->object
.oid
.hash
);
632 if (!hashcmp(local
->object
.oid
.hash
, base_sha1
)) {
633 /* Fast-forward; result == remote commit */
634 if (o
->verbosity
>= 2)
635 printf("Fast-forward\n");
636 hashcpy(result_sha1
, remote
->object
.oid
.hash
);
640 result
= merge_from_diffs(o
, base_tree_sha1
, local
->tree
->object
.oid
.hash
,
641 remote
->tree
->object
.oid
.hash
, local_tree
);
643 if (result
!= 0) { /* non-trivial merge (with or without conflicts) */
644 /* Commit (partial) result */
645 struct commit_list
*parents
= NULL
;
646 commit_list_insert(remote
, &parents
); /* LIFO order */
647 commit_list_insert(local
, &parents
);
648 create_notes_commit(local_tree
, parents
,
649 o
->commit_msg
.buf
, o
->commit_msg
.len
,
654 free_commit_list(bases
);
655 strbuf_release(&(o
->commit_msg
));
656 trace_printf("notes_merge(): result = %i, result_sha1 = %.7s\n",
657 result
, sha1_to_hex(result_sha1
));
661 int notes_merge_commit(struct notes_merge_options
*o
,
662 struct notes_tree
*partial_tree
,
663 struct commit
*partial_commit
,
664 unsigned char *result_sha1
)
667 * Iterate through files in .git/NOTES_MERGE_WORKTREE and add all
668 * found notes to 'partial_tree'. Write the updated notes tree to
669 * the DB, and commit the resulting tree object while reusing the
670 * commit message and parents from 'partial_commit'.
671 * Finally store the new commit object SHA1 into 'result_sha1'.
675 struct strbuf path
= STRBUF_INIT
;
676 const char *buffer
= get_commit_buffer(partial_commit
, NULL
);
677 const char *msg
= strstr(buffer
, "\n\n");
680 strbuf_addstr(&path
, git_path(NOTES_MERGE_WORKTREE
));
681 if (o
->verbosity
>= 3)
682 printf("Committing notes in notes merge worktree at %s\n",
685 if (!msg
|| msg
[2] == '\0')
686 die("partial notes commit has empty message");
689 dir
= opendir(path
.buf
);
691 die_errno("could not open %s", path
.buf
);
693 strbuf_addch(&path
, '/');
695 while ((e
= readdir(dir
)) != NULL
) {
697 unsigned char obj_sha1
[20], blob_sha1
[20];
699 if (is_dot_or_dotdot(e
->d_name
))
702 if (strlen(e
->d_name
) != 40 || get_sha1_hex(e
->d_name
, obj_sha1
)) {
703 if (o
->verbosity
>= 3)
704 printf("Skipping non-SHA1 entry '%s%s'\n",
705 path
.buf
, e
->d_name
);
709 strbuf_addstr(&path
, e
->d_name
);
710 /* write file as blob, and add to partial_tree */
711 if (stat(path
.buf
, &st
))
712 die_errno("Failed to stat '%s'", path
.buf
);
713 if (index_path(blob_sha1
, path
.buf
, &st
, HASH_WRITE_OBJECT
))
714 die("Failed to write blob object from '%s'", path
.buf
);
715 if (add_note(partial_tree
, obj_sha1
, blob_sha1
, NULL
))
716 die("Failed to add resolved note '%s' to notes tree",
718 if (o
->verbosity
>= 4)
719 printf("Added resolved note for object %s: %s\n",
720 sha1_to_hex(obj_sha1
), sha1_to_hex(blob_sha1
));
721 strbuf_setlen(&path
, baselen
);
724 create_notes_commit(partial_tree
, partial_commit
->parents
,
725 msg
, strlen(msg
), result_sha1
);
726 unuse_commit_buffer(partial_commit
, buffer
);
727 if (o
->verbosity
>= 4)
728 printf("Finalized notes merge commit: %s\n",
729 sha1_to_hex(result_sha1
));
730 strbuf_release(&path
);
735 int notes_merge_abort(struct notes_merge_options
*o
)
738 * Remove all files within .git/NOTES_MERGE_WORKTREE. We do not remove
739 * the .git/NOTES_MERGE_WORKTREE directory itself, since it might be
740 * the current working directory of the user.
742 struct strbuf buf
= STRBUF_INIT
;
745 strbuf_addstr(&buf
, git_path(NOTES_MERGE_WORKTREE
));
746 if (o
->verbosity
>= 3)
747 printf("Removing notes merge worktree at %s/*\n", buf
.buf
);
748 ret
= remove_dir_recursively(&buf
, REMOVE_DIR_KEEP_TOPLEVEL
);
749 strbuf_release(&buf
);