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Date:: Fri Mar 25 23:08:27 2022 UTC
Message:: remove trailing whitespaces
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1 /*
2  * Copyright (c) 2022 Omar Polo <op@openbsd.org>
3  *
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.
7  *
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.
15  *
16  * Apply patches.
17  *
18  * Things that we may want to support:
19  *     + support indented patches?
20  *     + support other kinds of patches?
21  */
22 
23 #include <sys/types.h>
24 #include <sys/queue.h>
25 #include <sys/socket.h>
26 #include <sys/stat.h>
27 #include <sys/uio.h>
28 
29 #include <errno.h>
30 #include <limits.h>
31 #include <sha1.h>
32 #include <stdint.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <unistd.h>
37 #include <imsg.h>
38 
39 #include "got_error.h"
40 #include "got_object.h"
41 #include "got_path.h"
42 #include "got_reference.h"
43 #include "got_cancel.h"
44 #include "got_worktree.h"
45 #include "got_opentemp.h"
46 #include "got_patch.h"
47 
48 #include "got_lib_delta.h"
49 #include "got_lib_object.h"
50 #include "got_lib_privsep.h"
51 
52 #define MIN(a, b) ((a) < (b) ? (a) : (b))
53 
54 struct got_patch_hunk {
55 	STAILQ_ENTRY(got_patch_hunk) entries;
56 	const struct got_error *err;
57 	long	offset;
58 	int	nonl;
59 	long	old_from;
60 	long	old_lines;
61 	long	new_from;
62 	long	new_lines;
63 	size_t	len;
64 	size_t	cap;
65 	char	**lines;
66 };
67 
68 STAILQ_HEAD(got_patch_hunk_head, got_patch_hunk);
69 struct got_patch {
70 	char	*old;
71 	char	*new;
72 	struct got_patch_hunk_head head;
73 };
74 
75 struct patch_args {
76 	got_patch_progress_cb progress_cb;
77 	void	*progress_arg;
78 	struct got_patch_hunk_head *head;
79 };
80 
81 static const struct got_error *
82 send_patch(struct imsgbuf *ibuf, int fd)
83 {
84 	const struct got_error *err = NULL;
85 
86 	if (imsg_compose(ibuf, GOT_IMSG_PATCH_FILE, 0, 0, fd,
87 	    NULL, 0) == -1) {
88 		err = got_error_from_errno(
89 		    "imsg_compose GOT_IMSG_PATCH_FILE");
90 		close(fd);
91 		return err;
92 	}
93 
94 	if (imsg_flush(ibuf) == -1) {
95 		err = got_error_from_errno("imsg_flush");
96 		imsg_clear(ibuf);
97 	}
98 
99 	return err;
100 }
101 
102 static void
103 patch_free(struct got_patch *p)
104 {
105 	struct got_patch_hunk *h;
106 	size_t i;
107 
108 	while (!STAILQ_EMPTY(&p->head)) {
109 		h = STAILQ_FIRST(&p->head);
110 		STAILQ_REMOVE_HEAD(&p->head, entries);
111 
112 		for (i = 0; i < h->len; ++i)
113 			free(h->lines[i]);
114 		free(h->lines);
115 		free(h);
116 	}
117 
118 	free(p->new);
119 	free(p->old);
120 }
121 
122 static const struct got_error *
123 pushline(struct got_patch_hunk *h, const char *line)
124 {
125 	void 	*t;
126 	size_t	 newcap;
127 
128 	if (h->len == h->cap) {
129 		if ((newcap = h->cap * 1.5) == 0)
130 			newcap = 16;
131 		t = recallocarray(h->lines, h->cap, newcap,
132 		    sizeof(h->lines[0]));
133 		if (t == NULL)
134 			return got_error_from_errno("recallocarray");
135 		h->lines = t;
136 		h->cap = newcap;
137 	}
138 
139 	if ((t = strdup(line)) == NULL)
140 		return got_error_from_errno("strdup");
141 
142 	h->lines[h->len++] = t;
143 	return NULL;
144 }
145 
146 static const struct got_error *
147 recv_patch(struct imsgbuf *ibuf, int *done, struct got_patch *p)
148 {
149 	const struct got_error *err = NULL;
150 	struct imsg imsg;
151 	struct got_imsg_patch_hunk hdr;
152 	struct got_imsg_patch patch;
153 	struct got_patch_hunk *h = NULL;
154 	size_t datalen;
155 
156 	memset(p, 0, sizeof(*p));
157 	STAILQ_INIT(&p->head);
158 
159 	err = got_privsep_recv_imsg(&imsg, ibuf, 0);
160 	if (err)
161 		return err;
162 	if (imsg.hdr.type == GOT_IMSG_PATCH_EOF) {
163 		*done = 1;
164 		goto done;
165 	}
166 	if (imsg.hdr.type != GOT_IMSG_PATCH) {
167 		err = got_error(GOT_ERR_PRIVSEP_MSG);
168 		goto done;
169 	}
170 	datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
171 	if (datalen != sizeof(patch)) {
172 		err = got_error(GOT_ERR_PRIVSEP_LEN);
173 		goto done;
174 	}
175 	memcpy(&patch, imsg.data, sizeof(patch));
176 	if (*patch.old != '\0' && (p->old = strdup(patch.old)) == NULL) {
177 		err = got_error_from_errno("strdup");
178 		goto done;
179 	}
180 	if (*patch.new != '\0' && (p->new = strdup(patch.new)) == NULL) {
181 		err = got_error_from_errno("strdup");
182 		goto done;
183 	}
184 	if (p->old == NULL && p->new == NULL) {
185 		err = got_error(GOT_ERR_PATCH_MALFORMED);
186 		goto done;
187 	}
188 
189 	imsg_free(&imsg);
190 
191 	for (;;) {
192 		char *t;
193 
194 		err = got_privsep_recv_imsg(&imsg, ibuf, 0);
195 		if (err)
196 			return err;
197 
198 		switch (imsg.hdr.type) {
199 		case GOT_IMSG_PATCH_DONE:
200 			goto done;
201 		case GOT_IMSG_PATCH_HUNK:
202 			if (h != NULL && h->nonl) {
203 				err = got_error(GOT_ERR_PATCH_MALFORMED);
204 				goto done;
205 			}
206 			datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
207 			if (datalen != sizeof(hdr)) {
208 				err = got_error(GOT_ERR_PRIVSEP_LEN);
209 				goto done;
210 			}
211 			memcpy(&hdr, imsg.data, sizeof(hdr));
212 			if ((h = calloc(1, sizeof(*h))) == NULL) {
213 				err = got_error_from_errno("calloc");
214 				goto done;
215 			}
216 			h->old_from = hdr.oldfrom;
217 			h->old_lines = hdr.oldlines;
218 			h->new_from = hdr.newfrom;
219 			h->new_lines = hdr.newlines;
220 			STAILQ_INSERT_TAIL(&p->head, h, entries);
221 			break;
222 		case GOT_IMSG_PATCH_LINE:
223 			if (h == NULL) {
224 				err = got_error(GOT_ERR_PRIVSEP_MSG);
225 				goto done;
226 			}
227 			datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
228 			t = imsg.data;
229 			/* at least one char */
230 			if (datalen < 2 || t[datalen-1] != '\0') {
231 				err = got_error(GOT_ERR_PRIVSEP_MSG);
232 				goto done;
233 			}
234 			if (*t != ' ' && *t != '-' && *t != '+' &&
235 			    *t != '\\') {
236 				err = got_error(GOT_ERR_PRIVSEP_MSG);
237 				goto done;
238 			}
239 			if (h->nonl)
240 				err = got_error(GOT_ERR_PATCH_MALFORMED);
241 			if (*t == '\\')
242 				h->nonl = 1;
243 			else
244 				err = pushline(h, t);
245 			if (err)
246 				goto done;
247 			break;
248 		default:
249 			err = got_error(GOT_ERR_PRIVSEP_MSG);
250 			goto done;
251 		}
252 
253 		imsg_free(&imsg);
254 	}
255 
256 done:
257 	imsg_free(&imsg);
258 	return err;
259 }
260 
261 /*
262  * Copy data from orig starting at copypos until pos into tmp.
263  * If pos is -1, copy until EOF.
264  */
265 static const struct got_error *
266 copy(FILE *tmp, FILE *orig, off_t copypos, off_t pos)
267 {
268 	char buf[BUFSIZ];
269 	size_t len, r, w;
270 
271 	if (fseek(orig, copypos, SEEK_SET) == -1)
272 		return got_error_from_errno("fseek");
273 
274 	while (pos == -1 || copypos < pos) {
275 		len = sizeof(buf);
276 		if (pos > 0)
277 			len = MIN(len, (size_t)pos - copypos);
278 		r = fread(buf, 1, len, orig);
279 		if (r != len && ferror(orig))
280 			return got_error_from_errno("fread");
281 		w = fwrite(buf, 1, r, tmp);
282 		if (w != r)
283 			return got_error_from_errno("fwrite");
284 		copypos += len;
285 		if (r != len && feof(orig)) {
286 			if (pos == -1)
287 				return NULL;
288 			return got_error(GOT_ERR_HUNK_FAILED);
289 		}
290 	}
291 	return NULL;
292 }
293 
294 static const struct got_error *
295 locate_hunk(FILE *orig, struct got_patch_hunk *h, off_t *pos, long *lineno)
296 {
297 	const struct got_error *err = NULL;
298 	char *line = NULL;
299 	char mode = *h->lines[0];
300 	size_t linesize = 0;
301 	ssize_t linelen;
302 	off_t match = -1;
303 	long match_lineno = -1;
304 
305 	for (;;) {
306 		linelen = getline(&line, &linesize, orig);
307 		if (linelen == -1) {
308 			if (ferror(orig))
309 				err = got_error_from_errno("getline");
310 			else if (match == -1)
311 				err = got_error(GOT_ERR_HUNK_FAILED);
312 			break;
313 		}
314 		if (line[linelen - 1] == '\n')
315 			line[linelen - 1] = '\0';
316 		(*lineno)++;
317 
318 		if ((mode == ' ' && !strcmp(h->lines[0] + 1, line)) ||
319 		    (mode == '-' && !strcmp(h->lines[0] + 1, line)) ||
320 		    (mode == '+' && *lineno == h->old_from)) {
321 			match = ftello(orig);
322 			if (match == -1) {
323 				err = got_error_from_errno("ftello");
324 				break;
325 			}
326 			match -= linelen;
327 			match_lineno = (*lineno)-1;
328 		}
329 
330 		if (*lineno >= h->old_from && match != -1)
331 			break;
332 	}
333 
334 	if (err == NULL) {
335 		*pos = match;
336 		*lineno = match_lineno;
337 		if (fseek(orig, match, SEEK_SET) == -1)
338 			err = got_error_from_errno("fseek");
339 	}
340 
341 	free(line);
342 	return err;
343 }
344 
345 static const struct got_error *
346 test_hunk(FILE *orig, struct got_patch_hunk *h)
347 {
348 	const struct got_error *err = NULL;
349 	char *line = NULL;
350 	size_t linesize = 0, i = 0;
351 	ssize_t linelen;
352 
353 	for (i = 0; i < h->len; ++i) {
354 		switch (*h->lines[i]) {
355 		case '+':
356 			continue;
357 		case ' ':
358 		case '-':
359 			linelen = getline(&line, &linesize, orig);
360 			if (linelen == -1) {
361 				if (ferror(orig))
362 					err = got_error_from_errno("getline");
363 				else
364 					err = got_error(
365 					    GOT_ERR_HUNK_FAILED);
366 				goto done;
367 			}
368 			if (line[linelen - 1] == '\n')
369 				line[linelen - 1] = '\0';
370 			if (strcmp(h->lines[i] + 1, line)) {
371 				err = got_error(GOT_ERR_HUNK_FAILED);
372 				goto done;
373 			}
374 			break;
375 		}
376 	}
377 
378 done:
379 	free(line);
380 	return err;
381 }
382 
383 static const struct got_error *
384 apply_hunk(FILE *tmp, struct got_patch_hunk *h, long *lineno)
385 {
386 	size_t i = 0;
387 
388 	for (i = 0; i < h->len; ++i) {
389 		switch (*h->lines[i]) {
390 		case ' ':
391 			if (fprintf(tmp, "%s\n", h->lines[i] + 1) < 0)
392 				return got_error_from_errno("fprintf");
393 			/* fallthrough */
394 		case '-':
395 			(*lineno)++;
396 			break;
397 		case '+':
398 			if (fprintf(tmp, "%s", h->lines[i] + 1) < 0)
399 				return got_error_from_errno("fprintf");
400 			if (i != h->len - 1 || !h->nonl) {
401 				if (fprintf(tmp, "\n") < 0)
402 					return got_error_from_errno(
403 					    "fprintf");
404 			}
405 			break;
406 		}
407 	}
408 	return NULL;
409 }
410 
411 static const struct got_error *
412 patch_file(struct got_patch *p, const char *path, FILE *tmp, int nop,
413     mode_t *mode)
414 {
415 	const struct got_error *err = NULL;
416 	struct got_patch_hunk *h;
417 	struct stat sb;
418 	long lineno = 0;
419 	FILE *orig;
420 	off_t copypos, pos;
421 	char *line = NULL;
422 	size_t linesize = 0;
423 	ssize_t linelen;
424 
425 	if (p->old == NULL) {				/* create */
426 		h = STAILQ_FIRST(&p->head);
427 		if (h == NULL || STAILQ_NEXT(h, entries) != NULL)
428 			return got_error(GOT_ERR_PATCH_MALFORMED);
429 		if (nop)
430 			return NULL;
431 		return apply_hunk(tmp, h, &lineno);
432 	}
433 
434 	if ((orig = fopen(path, "r")) == NULL) {
435 		err = got_error_from_errno2("fopen", path);
436 		goto done;
437 	}
438 
439 	if (fstat(fileno(orig), &sb) == -1) {
440 		err = got_error_from_errno("fstat");
441 		goto done;
442 	}
443 	*mode = sb.st_mode;
444 
445 	copypos = 0;
446 	STAILQ_FOREACH(h, &p->head, entries) {
447 		if (h->lines == NULL)
448 			break;
449 
450 	tryagain:
451 		err = locate_hunk(orig, h, &pos, &lineno);
452 		if (err != NULL && err->code == GOT_ERR_HUNK_FAILED)
453 			h->err = err;
454 		if (err != NULL)
455 			goto done;
456 		if (!nop)
457 			err = copy(tmp, orig, copypos, pos);
458 		if (err != NULL)
459 			goto done;
460 		copypos = pos;
461 
462 		err = test_hunk(orig, h);
463 		if (err != NULL && err->code == GOT_ERR_HUNK_FAILED) {
464 			/*
465 			 * try to apply the hunk again starting the search
466 			 * after the previous partial match.
467 			 */
468 			if (fseek(orig, pos, SEEK_SET) == -1) {
469 				err = got_error_from_errno("fseek");
470 				goto done;
471 			}
472 			linelen = getline(&line, &linesize, orig);
473 			if (linelen == -1) {
474 				err = got_error_from_errno("getline");
475 				goto done;
476 			}
477 			lineno++;
478 			goto tryagain;
479 		}
480 		if (err != NULL)
481 			goto done;
482 
483 		if (lineno + 1 != h->old_from)
484 			h->offset = lineno + 1 - h->old_from;
485 
486 		if (!nop)
487 			err = apply_hunk(tmp, h, &lineno);
488 		if (err != NULL)
489 			goto done;
490 
491 		copypos = ftello(orig);
492 		if (copypos == -1) {
493 			err = got_error_from_errno("ftello");
494 			goto done;
495 		}
496 	}
497 
498 	if (p->new == NULL && sb.st_size != copypos) {
499 		h = STAILQ_FIRST(&p->head);
500 		h->err = got_error(GOT_ERR_HUNK_FAILED);
501 		err = h->err;
502 	} else if (!nop && !feof(orig))
503 		err = copy(tmp, orig, copypos, -1);
504 
505 done:
506 	if (orig != NULL)
507 		fclose(orig);
508 	return err;
509 }
510 
511 static const struct got_error *
512 report_progress(struct patch_args *pa, const char *old, const char *new,
513     unsigned char status, const struct got_error *orig_error)
514 {
515 	const struct got_error *err;
516 	struct got_patch_hunk *h;
517 
518 	err = pa->progress_cb(pa->progress_arg, old, new, status,
519 	    orig_error, 0, 0, 0, 0, 0, NULL);
520 	if (err)
521 		return err;
522 
523 	STAILQ_FOREACH(h, pa->head, entries) {
524 		if (h->offset == 0 && h->err == NULL)
525 			continue;
526 
527 		err = pa->progress_cb(pa->progress_arg, old, new, 0, NULL,
528 		    h->old_from, h->old_lines, h->new_from, h->new_lines,
529 		    h->offset, h->err);
530 		if (err)
531 			return err;
532 	}
533 
534 	return NULL;
535 }
536 
537 static const struct got_error *
538 patch_delete(void *arg, unsigned char status, unsigned char staged_status,
539     const char *path)
540 {
541 	return report_progress(arg, path, NULL, status, NULL);
542 }
543 
544 static const struct got_error *
545 patch_add(void *arg, unsigned char status, const char *path)
546 {
547 	return report_progress(arg, NULL, path, status, NULL);
548 }
549 
550 static const struct got_error *
551 apply_patch(struct got_worktree *worktree, struct got_repository *repo,
552     const char *oldpath, const char *newpath, struct got_patch *p,
553     int nop, struct patch_args *pa, got_cancel_cb cancel_cb, void *cancel_arg)
554 {
555 	const struct got_error *err = NULL;
556 	struct got_pathlist_head oldpaths, newpaths;
557 	struct got_pathlist_entry *pe;
558 	int file_renamed = 0;
559 	char *tmppath = NULL, *template = NULL, *parent = NULL;;
560 	FILE *tmp = NULL;
561 	mode_t mode = GOT_DEFAULT_FILE_MODE;
562 
563 	TAILQ_INIT(&oldpaths);
564 	TAILQ_INIT(&newpaths);
565 
566 	err = got_pathlist_insert(&pe, &oldpaths, oldpath, NULL);
567 	if (err)
568 		goto done;
569 	err = got_pathlist_insert(&pe, &newpaths, newpath, NULL);
570 	if (err)
571 		goto done;
572 
573 	file_renamed = strcmp(oldpath, newpath);
574 
575 	if (asprintf(&template, "%s/got-patch",
576 	    got_worktree_get_root_path(worktree)) == -1) {
577 		err = got_error_from_errno(template);
578 		goto done;
579 	}
580 
581 	if (!nop)
582 		err = got_opentemp_named(&tmppath, &tmp, template);
583 	if (err)
584 		goto done;
585 	err = patch_file(p, oldpath, tmp, nop, &mode);
586 	if (err)
587 		goto done;
588 
589 	if (nop)
590 		goto done;
591 
592 	if (p->old != NULL && p->new == NULL) {
593 		err = got_worktree_schedule_delete(worktree, &oldpaths,
594 		    0, NULL, patch_delete, pa, repo, 0, 0);
595 		goto done;
596 	}
597 
598 	if (fchmod(fileno(tmp), mode) == -1) {
599 		err = got_error_from_errno2("chmod", newpath);
600 		goto done;
601 	}
602 
603 	if (rename(tmppath, newpath) == -1) {
604 		if (errno != ENOENT) {
605 			err = got_error_from_errno3("rename", tmppath,
606 			    newpath);
607 			goto done;
608 		}
609 
610 		err = got_path_dirname(&parent, newpath);
611 		if (err != NULL)
612 			goto done;
613 		err = got_path_mkdir(parent);
614 		if (err != NULL)
615 			goto done;
616 		if (rename(tmppath, newpath) == -1) {
617 			err = got_error_from_errno3("rename", tmppath,
618 			    newpath);
619 			goto done;
620 		}
621 	}
622 
623 	if (file_renamed) {
624 		err = got_worktree_schedule_delete(worktree, &oldpaths,
625 		    0, NULL, patch_delete, pa, repo, 0, 0);
626 		if (err == NULL)
627 			err = got_worktree_schedule_add(worktree, &newpaths,
628 			    patch_add, pa, repo, 1);
629 		if (err)
630 			unlink(newpath);
631 	} else if (p->old == NULL) {
632 		err = got_worktree_schedule_add(worktree, &newpaths,
633 		    patch_add, pa, repo, 1);
634 		if (err)
635 			unlink(newpath);
636 	} else
637 		err = report_progress(pa, oldpath, newpath, GOT_STATUS_MODIFY,
638 		    NULL);
639 
640 done:
641 	got_pathlist_free(&oldpaths);
642 	got_pathlist_free(&newpaths);
643 	free(parent);
644 	free(template);
645 	if (tmppath != NULL)
646 		unlink(tmppath);
647 	free(tmppath);
648 	return err;
649 }
650 
651 const struct got_error *
652 got_patch(int fd, struct got_worktree *worktree, struct got_repository *repo,
653     int nop, got_patch_progress_cb progress_cb, void *progress_arg,
654     got_cancel_cb cancel_cb, void *cancel_arg)
655 {
656 	const struct got_error *err = NULL;
657 	struct got_fileindex *fileindex = NULL;
658 	char *oldpath, *newpath;
659 	struct imsgbuf *ibuf;
660 	int imsg_fds[2] = {-1, -1};
661 	int done = 0, failed = 0;
662 	pid_t pid;
663 
664 	ibuf = calloc(1, sizeof(*ibuf));
665 	if (ibuf == NULL) {
666 		err = got_error_from_errno("calloc");
667 		goto done;
668 	}
669 
670 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
671 		err = got_error_from_errno("socketpair");
672 		goto done;
673 	}
674 
675 	pid = fork();
676 	if (pid == -1) {
677 		err = got_error_from_errno("fork");
678 		goto done;
679 	} else if (pid == 0) {
680 		got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_PATCH,
681 		    NULL);
682 		/* not reached */
683 	}
684 
685 	if (close(imsg_fds[1]) == -1) {
686 		err = got_error_from_errno("close");
687 		goto done;
688 	}
689 	imsg_fds[1] = -1;
690 	imsg_init(ibuf, imsg_fds[0]);
691 
692 	err = send_patch(ibuf, fd);
693 	fd = -1;
694 	if (err)
695 		goto done;
696 
697 	err = got_worktree_patch_prepare(&fileindex, worktree);
698 	if (err)
699 		goto done;
700 
701 	while (!done && err == NULL) {
702 		struct got_patch p;
703 		struct patch_args pa;
704 
705 		pa.progress_cb = progress_cb;
706 		pa.progress_arg = progress_arg;
707 		pa.head = &p.head;
708 
709 		err = recv_patch(ibuf, &done, &p);
710 		if (err || done)
711 			break;
712 
713 		err = got_worktree_patch_check_path(p.old, p.new, &oldpath,
714 		    &newpath, worktree, repo, fileindex);
715 		if (err == NULL)
716 			err = apply_patch(worktree, repo, oldpath, newpath,
717 			    &p, nop, &pa, cancel_cb, cancel_arg);
718 		if (err != NULL) {
719 			failed = 1;
720 			/* recoverable errors */
721 			if (err->code == GOT_ERR_FILE_STATUS ||
722 			    (err->code == GOT_ERR_ERRNO && errno == ENOENT))
723 				err = report_progress(&pa, p.old, p.new,
724 				    GOT_STATUS_CANNOT_UPDATE, err);
725 			else if (err->code == GOT_ERR_HUNK_FAILED)
726 				err = report_progress(&pa, p.old, p.new,
727 				    GOT_STATUS_CANNOT_UPDATE, NULL);
728 		}
729 
730 		free(oldpath);
731 		free(newpath);
732 		patch_free(&p);
733 
734 		if (err)
735 			break;
736 	}
737 
738 done:
739 	if (fileindex)
740 		got_worktree_patch_complete(fileindex);
741 	if (fd != -1 && close(fd) == -1 && err == NULL)
742 		err = got_error_from_errno("close");
743 	if (ibuf != NULL)
744 		imsg_clear(ibuf);
745 	if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
746 		err = got_error_from_errno("close");
747 	if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
748 		err = got_error_from_errno("close");
749 	if (err == NULL && failed)
750 		err = got_error(GOT_ERR_PATCH_FAILED);
751 	return err;
752 }