gitから差分ファイルリスト作成。引数１つでHEADからの差分(整数orコミットID)、引数二つでコミット間の差分(コミットIDのみ対応)

difflist.sh

#!/bin/bash
diff=""
name=""
if [ $# -eq 1 ]; then
  if expr "$1" : '.*[^0-9].*' > /dev/null ; then
    diff=" HEAD ${1}"
    name="HEAD ~ ${1}"
  else
    diff=" HEAD HEAD~${1}"
    name="HEAD ~ HEAD~${1} "
  fi
elif [ $# -eq 2 ]; then
  diff="${1} ${2}"
  name="${1} ~ ${2}"
fi

echo -e "\033[0;37mNot staged files :\033[0;31m"
git diff --name-only
echo -e "\033[0;37m"
echo -e "Diff files \033[0;33m${name}\033[0;37m:"
if [ "$diff" != "" ]; then
  list=$(git diff --name-only $diff)
  echo -e "\033[0;32m$list"
else
  echo "Not exists."
fi
echo -e "\033[0;37m"