Hi Werner, > upload a unified diff (`diff -u'), from old to new. Your context diff > is apparently from new to old, which is hard to read.
I agree contributors should prepare unified old-new patches, but you might like to know about Tim Waugh's patchutils for manipulating patches, including reversing them. http://cyberelk.net/tim/software/patchutils/ packaged as patchutils in many distros. $ diff -c <(seq 10) <(seq 10 | sed '3p; 5,7s/./x/') *** /dev/fd/63 2014-11-08 15:46:02.865916114 +0000 --- /dev/fd/62 2014-11-08 15:46:02.865916114 +0000 *************** *** 1,10 **** 1 2 3 4 ! 5 ! 6 ! 7 8 9 10 --- 1,11 ---- 1 2 3 + 3 4 ! x ! x ! x 8 9 10 $ $ diff -c <(seq 10) <(seq 10 | sed '3p; 5,7s/./x/') | > interdiff -q /dev/stdin /dev/null --- /dev/fd/62 2014-11-08 15:46:08.315049148 +0000 +++ /dev/fd/63 2014-11-08 15:46:08.315049148 +0000 @@ -1,11 +1,10 @@ 1 2 3 -3 4 +5 +6 +7 -x -x -x 8 9 10 $ The only downside is it doesn't buffer `+' output lines to have them appear after `-'; still a valid patch though. Cheers, Ralph.
