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[PATCH/FIXUP 4/2] apply: only pay attention to CRLF in the preimage

From
Junio C Hamano <gitster@pobox.com>
Date
Aug 16, 2017, 18:29 UTC
Message-ID
<xmqqpobvl627.fsf@gitster.mtv.corp.google.com>
In-Reply-To
<20170813085106.1731-1-tboegi@web.de>

The newly added "patch.has_crlf" member wants to indicate if the incoming patch expects any CRLF line in the patch target, and parse_fragment() implements that logic for "git apply".

Rename the member to "patch.crlf_in_old" to clarify what it means, and fix the logic in parse_fragment() so that it also works correctly when running "git apply -R", where '+' lines correspond to the patch target.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 There also is an obvious style fix for comment, but I didn't bother
 splitting it out to a separate step.
 apply.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/apply.c b/apply.c
index 7663e63df7..995973da3d 100644
--- a/apply.c
+++ b/apply.c
@@ -220,7 +220,7 @@ struct patch {
 	unsigned int recount:1;
 	unsigned int conflicted_threeway:1;
 	unsigned int direct_to_threeway:1;
-	unsigned int has_crlf:1;
+	unsigned int crlf_in_old:1;
 	struct fragment *fragments;
 	char *result;
 	size_t resultsize;
@@ -1663,13 +1663,15 @@ static void check_whitespace(struct apply_state *state,
 	record_ws_error(state, result, line + 1, len - 2, state->linenr);
 }
 
-/* Check if the patch has context lines with CRLF or
-   the patch wants to remove lines with CRLF */
+/*
+ * Check if the patch has context lines with CRLF or
+ * the patch wants to remove lines with CRLF.
+ */
 static void check_old_for_crlf(struct patch *patch, const char *line, int len)
 {
 	if (len >= 2 && line[len-1] == '\n' && line[len-2] == '\r') {
 		patch->ws_rule |= WS_CR_AT_EOL;
-		patch->has_crlf = 1;
+		patch->crlf_in_old = 1;
 	}
 }
 
@@ -1730,7 +1732,8 @@ static int parse_fragment(struct apply_state *state,
 				check_whitespace(state, line, len, patch->ws_rule);
 			break;
 		case '-':
-			check_old_for_crlf(patch, line, len);
+			if (!state->apply_in_reverse)
+				check_old_for_crlf(patch, line, len);
 			if (state->apply_in_reverse &&
 			    state->ws_error_action != nowarn_ws_error)
 				check_whitespace(state, line, len, patch->ws_rule);
@@ -1739,6 +1742,8 @@ static int parse_fragment(struct apply_state *state,
 			trailing = 0;
 			break;
 		case '+':
+			if (state->apply_in_reverse)
+				check_old_for_crlf(patch, line, len);
 			if (!state->apply_in_reverse &&
 			    state->ws_error_action != nowarn_ws_error)
 				check_whitespace(state, line, len, patch->ws_rule);
@@ -3442,7 +3447,7 @@ static int load_preimage(struct apply_state *state,
 	char *img;
 	struct patch *previous;
 	int status;
-	int flags = patch->has_crlf ? APPLY_FLAGS_CR_AT_EOL : 0;
+	int flags = patch->crlf_in_old ? APPLY_FLAGS_CR_AT_EOL : 0;
 
 	previous = previous_patch(state, patch, &status);
 	if (status)
Previous: Junio C HamanoNext: Junio C Hamano
Message 29 of 36 in “core.autocrlf=true causes `git apply` to fail on patch generated with `git diff-index HEAD --patch`”
  1. Anthony SottileAug 1, 2017
  2. Torsten BögershausenAug 1, 2017
  3. Anthony SottileAug 1, 2017
  4. Torsten BögershausenAug 2, 2017
  5. 1/1 correct apply for files commited with CRLFtboegi@web.de, Aug 2, 2017
  6. Junio C HamanoAug 2, 2017
  7. Torsten BögershausenAug 4, 2017
  8. Junio C HamanoAug 4, 2017
  9. Junio C HamanoAug 4, 2017
  10. Junio C HamanoAug 2, 2017
  11. Torsten BögershausenAug 12, 2017
  12. Torsten BögershausenAug 12, 2017
  13. convert: Add SAFE_CRLF_KEEP_CRLFtboegi@web.de, Aug 12, 2017
  14. File commited with CRLF should roundtrip diff and applytboegi@web.de, Aug 12, 2017
  15. Junio C HamanoAug 14, 2017
  16. 1/2 convert: Add SAFE_CRLF_KEEP_CRLFtboegi@web.de, Aug 17, 2017
  17. 2/2 File commited with CRLF should roundtrip diff and applytboegi@web.de, Aug 17, 2017
  18. Junio C HamanoAug 17, 2017
  19. 1/2 convert: Add SAFE_CRLF_KEEP_CRLFtboegi@web.de, Aug 17, 2017
  20. 2/2 File commited with CRLF should roundtrip diff and applytboegi@web.de, Aug 17, 2017
  21. Junio C HamanoAug 17, 2017
  22. Junio C HamanoAug 17, 2017
  23. 1/2 convert: Add SAFE_CRLF_KEEP_CRLFtboegi@web.de, Aug 19, 2017
  24. 2/2 File commited with CRLF should roundtrip diff and applytboegi@web.de, Aug 19, 2017
  25. 1/2 convert: Add SAFE_CRLF_KEEP_CRLFtboegi@web.de, Aug 13, 2017
  26. 2/2 File commited with CRLF should roundtrip diff and applytboegi@web.de, Aug 13, 2017
  27. 3/2 apply: remove unused member apply_state.flagsJunio C Hamano, Aug 16, 2017
  28. Junio C HamanoAug 16, 2017
  29. 4/2 apply: only pay attention to CRLF in the preimageJunio C Hamano, Aug 16, 2017
  30. 5/2 apply: localize the CRLF business to read_old_data()Junio C Hamano, Aug 16, 2017
  31. 6/2 apply: clarify read_old_data() is about no-index caseJunio C Hamano, Aug 16, 2017
  32. Torsten BögershausenAug 17, 2017
  33. Junio C HamanoAug 17, 2017
  34. Junio C HamanoAug 17, 2017
  35. Torsten BögershausenAug 17, 2017
  36. Junio C HamanoAug 17, 2017

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