git-archive-diff | コミット間で差分のあるファイルをzipでエクスポートする ( inspired by gitで差分ファイルを抽出する - Qiita http://qiita.com/kaminaly/items/28f9cb4e680deb700833 )

git-archive-diff

#!/bin/sh

function usage() {
  echo "usage: git archive-diff [-o <zip-file-path>]"
  echo "usage: git archive-diff <commit> [-o <zip-file-path>]"
  echo "usage: git archive-diff <commit> <commit> [-o <zip-file-path>]"
  exit 1
}

OUTPUT_FILE="archive.zip"

if [ $# -gt 0 ]
then
  if [ $# -eq 1 ]
  then
    COMMIT_SRC="HEAD"
    COMMIT_DST=$1
  elif [ $# -eq 2 ]
  then
    if [ $1 = "-o" ]
    then
      COMMIT_SRC="HEAD"
      COMMIT_DST="HEAD~"
      OUTPUT_FILE=$2
    else
      COMMIT_SRC=$1
      COMMIT_DST=$2
    fi
  elif [ $# -eq 3 ]
  then
    if [ $2 = "-o" ]
    then
      COMMIT_SRC="HEAD"
      COMMIT_DST=$1
      OUTPUT_FILE=$3
    else
      usage
    fi
  elif [ $# -eq 4 ]
  then
    if [ $3 = "-o" ]
    then
      COMMIT_SRC=$1
      COMMIT_DST=$2
      OUTPUT_FILE=$4
    else
      usage
    fi
  else
    usage
  fi
else
  COMMIT_SRC="HEAD"
  COMMIT_DST="HEAD~"
fi

TARGET_FILES=`git diff --name-only ${COMMIT_SRC} ${COMMIT_DST}`

if [ -z "${TARGET_FILES}" ]
then
  echo "No diff files."
  exit 1
fi

git archive --format=zip ${COMMIT_SRC} ${TARGET_FILES} -o ${OUTPUT_FILE}

exit 0