Simple Word Diff (wdiff) Wrapper for Mercurial

wdiff.sh

function dowdiff() {
  wdiff \
    -w $'\e[91m' \
    -x $'\e[0m' \
    -y $'\e[92m' \
    -z $'\e[0m' \
    $1 $2
}
function findwdiff() {
  local diff=$(mktemp /tmp/wdiff-full.XXXXX)
  local left=$(mktemp /tmp/wdiff-left.XXXXX)
  local right=$(mktemp /tmp/wdiff-right.XXXXX)
  diff \
    --recursive \
    --unified=5 \
    "${1}" "${2}" > $diff
  local indiff=false
  IFS=''
  while read i; do
    if [[ $i = @@* ]]; then
      # @@ -49,6 +49,10 @@
      echo -en "\e[93m${i}" | sed -E "s/@@ -(\w+),.*$/:\1/"
      echo -e "\x1B[K\e[0m"
    elif [[ $i = +++* ]]; then
      echo -e "\e[34m${i#+++ }\x1B[K\e[0m"
    elif [[ $i = ---* ]]; then
      :
    elif [[ $i = diff* ]]; then
      :
    elif [[ $i = +* ]]; then
      echo "${i#+}" >> $right
      indiff=true
    elif [[ $i = -* ]]; then
      echo "${i#-}" >> $left
      indiff=true
    else
      if [ "$indiff" = true ]; then
        dowdiff $left $right
        : > $left
        : > $right
        indiff=false
      fi
      echo "${i## }"
    fi
  done <$diff
  if [ "$indiff" = true ]; then
    dowdiff $left $right
  fi
  rm $diff $left $right
}

findwdiff $@