diff options
author | Junio C Hamano <gitster@pobox.com> | 2008-08-28 06:48:01 +0400 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2008-08-31 07:34:45 +0400 |
commit | 392809702016cde59d50a7b07e8c27f6d0ec3c3f (patch) | |
tree | e24f06dd6aeb724aaab72b8aa32de381b989737e /t | |
parent | bbb896d8e10f736bfda8f587c0009c358c9a8599 (diff) |
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 <gitster@pobox.com>
Diffstat (limited to 't')
-rwxr-xr-x | t/t4019-diff-wserror.sh | 12 |
1 files changed, 12 insertions, 0 deletions
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 |