From: Junio C Hamano <gitster@pobox.com>
Date: Mon, 26 Sep 2011 20:30:30 +0000 (-0700)
Subject: apply --whitespace=error: correctly report new blank lines at end
X-Git-Tag: v1.7.7.1~4^2
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/855726395342441808eff5e4e9ad9a2b9254edbc?ds=inline;hp=--cc

apply --whitespace=error: correctly report new blank lines at end

Earlier, 77b15bb (apply --whitespace=warn/error: diagnose blank at EOF,
2009-09-03) cheated by reporting the line number of the hunk that contains
the offending line that adds new blank lines at the end of the file. All
other types of whitespace errors are reported with the line number in the
patch file that has the actual offending text.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

855726395342441808eff5e4e9ad9a2b9254edbc
diff --git a/builtin-apply.c b/builtin-apply.c
index 37d3bc069b..508b1edc19 100644
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -1904,6 +1904,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
 	int size = frag->size;
 	char *old, *new, *oldlines, *newlines;
 	int new_blank_lines_at_end = 0;
+	int found_new_blank_lines_at_end = 0;
+	int hunk_linenr = frag->linenr;
 	unsigned long leading, trailing;
 	int pos, applied_pos;
 	struct image preimage;
@@ -1996,14 +1998,18 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
 				error("invalid start of line: '%c'", first);
 			return -1;
 		}
-		if (added_blank_line)
+		if (added_blank_line) {
+			if (!new_blank_lines_at_end)
+				found_new_blank_lines_at_end = hunk_linenr;
 			new_blank_lines_at_end++;
+		}
 		else if (is_blank_context)
 			;
 		else
 			new_blank_lines_at_end = 0;
 		patch += len;
 		size -= len;
+		hunk_linenr++;
 	}
 	if (inaccurate_eof &&
 	    old > oldlines && old[-1] == '\n' &&
@@ -2085,7 +2091,8 @@ static int apply_one_fragment(struct image *img, struct fragment *frag,
 		    preimage.nr + applied_pos == img->nr &&
 		    (ws_rule & WS_BLANK_AT_EOF) &&
 		    ws_error_action != nowarn_ws_error) {
-			record_ws_error(WS_BLANK_AT_EOF, "+", 1, frag->linenr);
+			record_ws_error(WS_BLANK_AT_EOF, "+", 1,
+					found_new_blank_lines_at_end);
 			if (ws_error_action == correct_ws_error) {
 				while (new_blank_lines_at_end--)
 					remove_last_line(&postimage);