gitで差分ファイルを抽出する（改変） ref: http://qiita.com/tkdn/items/d6980079b950b584a070

.bashrc

function git_diff_archive() 
{
  dateTime=`date '+%Y%m%d%H%M'`
  local diff=""
  local h="HEAD"
  if [ $# -eq 1 ]; then
    if expr "$1" : '[0-9]*' > /dev/null ; then
      diff="HEAD HEAD~${1}"
    else
      diff="HEAD ${1}"
    fi
  elif [ $# -eq 2 ]; then
    diff="${1} ${2}"
    h=$1
  fi
  if [ "$diff" != "" ]; then
    diff="git diff --name-only ${diff}"
  fi
  git archive --format=zip $h `eval $diff` -o ${PWD##*/}-$dateTime.zip
}
alias git_diff_archive=git_diff_archive

file1.txt

$ git_diff_archive ab8c41c