chiark - git - mdw - stgit/blob - contrib/diffcol.sh

   1 #!/bin/sh
   2
   3 # Code copied from Quilt (http://savannah.nongnu.org/projects/quilt)
   4 #
   5 # Copyright 2006 - the Quilt authors
   6 #
   7 #  This script is free software; you can redistribute it and/or modify
   8 #  it under the terms of the GNU General Public License version 2 as
   9 #  published by the Free Software Foundation.
  10
  11 setup_colors()
  12 {
  13         local C="diffhdr=1;36:diffhdradd=1;32:diffadd=32:diffhdrmod=1;35:diffmod=35:diffhdrrem=1;31:diffrem=31:diffhunk=36:diffctx=34:diffcctx=33:default=0"
  14         [ -n "$DIFF_COLORS" ] && C="$C:$DIFF_COLORS"
  15
  16         C=${C//=/=\'$'\e'[}
  17         C=col${C//:/m\'; col}m\'
  18         #coldefault=$(tput op)
  19         eval $C
  20 }
  21
  22 setup_colors
  23
  24 gawk '{
  25         if (/^(Index:|diff --git) /)
  26                 print "'$coldiffhdr'" $0 "'$coldefault'"
  27         else if (/^======*$/)
  28                 print "'$coldiffhdr'" $0 "'$coldefault'"
  29         else if (/^\+\+\+/)
  30                 print "'$coldiffhdradd'" $0 "'$coldefault'"
  31         else if (/^\*\*\*/)
  32                 print "'$coldiffhdrmod'" $0 "'$coldefault'"
  33         else if (/^---/)
  34                 print "'$coldiffhdrrem'" $0 "'$coldefault'"
  35         else if (/^(\+|new( file)? mode )/)
  36                 print "'$coldiffadd'" $0 "'$coldefault'"
  37         else if (/^(-|(deleted file|old) mode )/)
  38                 print "'$coldiffrem'" $0 "'$coldefault'"
  39         else if (/^!/)
  40                 print "'$coldiffmod'" $0 "'$coldefault'"
  41         else if (/^@@ \-[0-9]+(,[0-9]+)? \+[0-9]+(,[0-9]+)? @@/)
  42                 print gensub(/^(@@[^@]*@@)([ \t]*)(.*)/,
  43                         "'$coldiffhunk'" "\\1" "'$coldefault'" \
  44                         "\\2" \
  45                         "'$coldiffctx'" "\\3" "'$coldefault'", "")
  46         else if (/^\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/)
  47                 print "'$coldiffcctx'" $0 "'$coldefault'"
  48         else {
  49                 print
  50         }
  51 }' $1 | less -R -S