From 392809702016cde59d50a7b07e8c27f6d0ec3c3f Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 27 Aug 2008 19:48:01 -0700 Subject: diff: Help "less" hide ^M from the output When the tracked contents have CRLF line endings, colored diff output shows "^M" at the end of output lines, which is distracting, even though the pager we use by default ("less") knows to hide them. The problem is that "less" hides a carriage-return only at the end of the line, immediately before a line feed. The colored diff output does not take this into account, and emits four element sequence for each line: - force this color; - the line up to but not including the terminating line feed; - reset color - line feed. By including the carriage return at the end of the line in the second item, we are breaking the smart our pager has in order not to show "^M". This can be fixed by changing the sequence to: - force this color; - the line up to but not including the terminating end-of-line; - reset color - end-of-line. where end-of-line is either a single linefeed or a CRLF pair. When the output is not colored, "force this color" and "reset color" sequences are both empty, so we won't have this problem with or without this patch. Signed-off-by: Junio C Hamano --- t/t4019-diff-wserror.sh | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 't') diff --git a/t/t4019-diff-wserror.sh b/t/t4019-diff-wserror.sh index 7eae1f4500..84a1fe3115 100755 --- a/t/t4019-diff-wserror.sh +++ b/t/t4019-diff-wserror.sh @@ -178,4 +178,16 @@ test_expect_success 'trailing empty lines (2)' ' ' +test_expect_success 'do not color trailing cr in context' ' + git config --unset core.whitespace + rm -f .gitattributes && + echo AAAQ | tr Q "\015" >G && + git add G && + echo BBBQ | tr Q "\015" >>G + git diff --color G | tr "\015" Q >output && + grep "BBB.*${blue_grep}Q" output && + grep "AAA.*\[mQ" output + +' + test_done -- cgit v1.2.1