tools/pcbdiff

   1 #! /bin/sh
   2
   3 usage ()
   4 {
   5   echo Usage:
   6   echo \\tpcbdiff firstfile secondfile
   7   echo \\tView a graphical diff of PCB files
   8   echo
   9   echo \\tTo use with git, just place this script in your PATH and do
  10   echo \\tgit difftool -x pcbdiff ...
  11   echo
  12   echo \\tTo use with mercurial, add the following lines to your .hgrc:
  13   echo \\t\\t[extensions]
  14   echo \\t\\thgext.extdiff =
  15   echo \\t\\t[extdiff]
  16   echo \\t\\tcmd.pcbdiff = /PATH/TO/pcbdiff
  17   echo \\tthen to invoke it, do
  18   echo \\thg pcbdiff ...
  19   echo
  20   echo \\tTo use with subversion, place it in your PATH and do
  21   echo \\tsvn diff --diff-cmd pcbdiff ...
  22
  23   echo \\tRequirements: Imagemagick and gschem be installed
  24 }
  25
  26 PCB=`which pcb`
  27 if test -z "${PCB}"; then
  28   MISSING=pcb
  29 fi
  30
  31 CONVERT=`which convert`
  32 if test -z "${CONVERT}"; then
  33   MISSING=convert
  34 fi
  35
  36 COMPOSITE=`which composite`
  37 if test -z "${COMPOSITE}"; then
  38   MISSING=composite
  39 fi
  40
  41 VIEWER=`which display`
  42 if test -z "${VIEWER}"; then
  43   MISSING=display
  44 fi
  45
  46 if test -z "${MISSING}"; then
  47   true
  48 else
  49   echo "Binary for \"${MISSING}\" not found." >&2
  50   echo "Either it is not installed, or not in your PATH" >&2
  51   exit 1
  52 fi
  53
  54 #In case the script was invoked with extra option arguments, throw them away
  55 shift `expr $# - 2`
  56
  57 LEFTFILE="${1}"
  58 RIGHTFILE="${2}"
  59 if test -d "${LEFTFILE}" -o -d "${RIGHTFILE}"
  60   then echo "ERROR: pcbdiff cannot diff entire directories"
  61   exit 1
  62 fi
  63
  64 LEFTPNG=`mktemp --tmpdir pcbdiff.XXXXXXXXXX`
  65 RIGHTPNG=`mktemp --tmpdir pcbdiff.XXXXXXXXXX`
  66 LEFTBNW=`mktemp --tmpdir pcbdiff.XXXXXXXXXX`
  67 RIGHTBNW=`mktemp --tmpdir pcbdiff.XXXXXXXXXX`
  68 DIFFPNG=`mktemp --tmpdir pcbdiff.XXXXXXXXXX`
  69
  70 "${PCB}" -x png --dpi ${PCBDIFF_DPI:-200} --photo-mode --outfile ${LEFTPNG} "${LEFTFILE}"
  71 "${PCB}" -x png --dpi ${PCBDIFF_DPI:-200} --photo-mode --outfile ${RIGHTPNG} "${RIGHTFILE}"
  72 "${CONVERT}" -colorspace gray $LEFTPNG $LEFTBNW
  73 "${CONVERT}" -colorspace gray $RIGHTPNG $RIGHTBNW
  74 "${COMPOSITE}" -stereo 0 $LEFTBNW $RIGHTBNW $DIFFPNG
  75 "${VIEWER}" $DIFFPNG
  76 rm $LEFTPNG
  77 rm $RIGHTPNG
  78 rm $LEFTBNW
  79 rm $RIGHTBNW
  80 rm $DIFFPNG