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[PATCH v10 16/40] builtin/apply: make gitdiff_*() return 1 at end of header

From
Christian Couder <christian.couder@gmail.com>
Date
Aug 8, 2016, 21:03 UTC
Message-ID
<20160808210337.5038-17-chriscool@tuxfamily.org>
In-Reply-To
<20160808210337.5038-1-chriscool@tuxfamily.org>

The gitdiff_*() functions that are called as p->fn() in parse_git_header() should return 1 instead of -1 in case of end of header or unrecognized input, as these are not real errors. It just instructs the parser to break out.

This makes it possible for gitdiff_*() functions to return -1 in case of a real error. This will be done in a following patch.

Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin/apply.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c
index f99498b..eb918e5 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -812,7 +812,7 @@ static int gitdiff_hdrend(struct apply_state *state,
 			  const char *line,
 			  struct patch *patch)
 {
-	return -1;
+	return 1;
 }
 
 /*
@@ -1016,7 +1016,7 @@ static int gitdiff_unrecognized(struct apply_state *state,
 				const char *line,
 				struct patch *patch)
 {
-	return -1;
+	return 1;
 }
 
 /*
@@ -1248,9 +1248,13 @@ static int parse_git_header(struct apply_state *state,
 		for (i = 0; i < ARRAY_SIZE(optable); i++) {
 			const struct opentry *p = optable + i;
 			int oplen = strlen(p->str);
+			int res;
 			if (len < oplen || memcmp(p->str, line, oplen))
 				continue;
-			if (p->fn(state, line + oplen, patch) < 0)
+			res = p->fn(state, line + oplen, patch);
+			if (res < 0)
+				return -1;
+			if (res > 0)
 				return offset;
 			break;
 		}
@@ -1430,6 +1434,8 @@ static int find_header(struct apply_state *state,
 		 */
 		if (!memcmp("diff --git ", line, 11)) {
 			int git_hdr_len = parse_git_header(state, line, len, size, patch);
+			if (git_hdr_len < 0)
+				return -128;
 			if (git_hdr_len <= len)
 				continue;
 			if (!patch->old_name && !patch->new_name) {

-- 
2.9.2.614.g4980f51
Previous: Christian CouderNext: Christian Couder
Message 43 of 51 in “libify apply and use lib in am, part 2”
  1. 00/40 libify apply and use lib in am, part 2Christian Couder, Aug 8, 2016
  2. 02/40 apply: move 'struct apply_state' to apply.hChristian Couder, Aug 8, 2016
  3. 03/40 builtin/apply: make apply_patch() return -1 or -128 instead of die()ingChristian Couder, Aug 8, 2016
  4. 04/40 builtin/apply: read_patch_file() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  5. 07/40 builtin/apply: make parse_single_patch() return -1 on errorChristian Couder, Aug 8, 2016
  6. 05/40 builtin/apply: make find_header() return -128 instead of die()ingChristian Couder, Aug 8, 2016
  7. 06/40 builtin/apply: make parse_chunk() return a negative integer on errorChristian Couder, Aug 8, 2016
  8. 10/40 builtin/apply: move init_apply_state() to apply.cChristian Couder, Aug 8, 2016
  9. 09/40 builtin/apply: make parse_ignorewhitespace_option() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  10. 12/40 builtin/apply: make check_apply_state() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  11. 13/40 builtin/apply: move check_apply_state() to apply.cChristian Couder, Aug 8, 2016
  12. 11/40 apply: make init_apply_state() return -1 instead of exit()ingChristian Couder, Aug 8, 2016
  13. 15/40 builtin/apply: make parse_traditional_patch() return -1 on errorChristian Couder, Aug 8, 2016
  14. 21/40 builtin/apply: make add_conflicted_stages_file() return -1 on errorChristian Couder, Aug 8, 2016
  15. 20/40 builtin/apply: make remove_file() return -1 on errorChristian Couder, Aug 8, 2016
  16. 22/40 builtin/apply: make add_index_file() return -1 on errorChristian Couder, Aug 8, 2016
  17. 23/40 builtin/apply: make create_file() return -1 on errorChristian Couder, Aug 8, 2016
  18. 27/40 builtin/apply: make create_one_file() return -1 on errorChristian Couder, Aug 8, 2016
  19. 29/40 apply: rename and move opt constants to apply.hChristian Couder, Aug 8, 2016
  20. 28/40 builtin/apply: rename option parsing functionsChristian Couder, Aug 8, 2016
  21. stefan.naewe@atlas-elektronik.comAug 9, 2016
  22. 26/40 builtin/apply: make try_create_file() return -1 on errorChristian Couder, Aug 8, 2016
  23. 25/40 builtin/apply: make write_out_results() return -1 on errorChristian Couder, Aug 8, 2016
  24. 31/40 apply: make some parsing functions static againChristian Couder, Aug 8, 2016
  25. 24/40 builtin/apply: make write_out_one_result() return -1 on errorChristian Couder, Aug 8, 2016
  26. 32/40 apply: use error_errno() where possibleChristian Couder, Aug 8, 2016
  27. 19/40 builtin/apply: make build_fake_ancestor() return -1 on errorChristian Couder, Aug 8, 2016
  28. 37/40 usage: add get_error_routine() and get_warn_routine()Christian Couder, Aug 8, 2016
  29. 36/40 usage: add set_warn_routine()Christian Couder, Aug 8, 2016
  30. 35/40 apply: don't print on stdout in verbosity_silent modeChristian Couder, Aug 8, 2016
  31. 39/40 apply: refactor `git apply` option parsingChristian Couder, Aug 8, 2016
  32. 33/40 environment: add set_index_file()Christian Couder, Aug 8, 2016
  33. Junio C HamanoAug 8, 2016
  34. Christian CouderAug 10, 2016
  35. Junio C HamanoAug 10, 2016
  36. Christian CouderAug 11, 2016
  37. Junio C HamanoAug 11, 2016
  38. 34/40 apply: make it possible to silently applyChristian Couder, Aug 8, 2016
  39. 38/40 apply: change error_routine when silentChristian Couder, Aug 8, 2016
  40. 18/40 builtin/apply: change die_on_unsafe_path() to check_unsafe_path()Christian Couder, Aug 8, 2016
  41. 40/40 builtin/am: use apply api in run_apply()Christian Couder, Aug 8, 2016
  42. 17/40 builtin/apply: make gitdiff_*() return -1 on errorChristian Couder, Aug 8, 2016
  43. 16/40 builtin/apply: make gitdiff_*() return 1 at end of headerChristian Couder, Aug 8, 2016
  44. 14/40 builtin/apply: make apply_all_patches() return 128 or 1 on errorChristian Couder, Aug 8, 2016
  45. 08/40 builtin/apply: make parse_whitespace_option() return -1 instead of die()ingChristian Couder, Aug 8, 2016
  46. 01/40 apply: make some names more specificChristian Couder, Aug 8, 2016
  47. stefan.naewe@atlas-elektronik.comAug 9, 2016
  48. Christian CouderAug 11, 2016
  49. stefan.naewe@atlas-elektronik.comAug 11, 2016
  50. Christian CouderAug 8, 2016
  51. Junio C HamanoAug 8, 2016

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