change file encoding to utf8-lf

convert_file_to_utf8-lf.sh

#!/bin/bash

if [ $# -gt 2 -o $# -lt 1 ]; then
  echo "Usage: $0 TARGET_FOLDER_PATH [TARGET_FILE_REGEX]"
  exit 1
fi

TARGET_FOLDER_PATH=$1

if [ $# -eq 1 ]; then
  TARGET_FILE_REGEX = ".*"
else
  TARGET_FILE_REGEX=$2
fi

find "${TARGET_FOLDER_PATH%/}/" -type f -regex $TARGET_FILE_REGEX 2>/dev/null | while read -r A_FILE_PATH
do
  if [[ "${A_FILE_PATH}" =~ "/.venv/" ]]; then
    continue
  fi

  FILE_ENCODING=`nkf --guess "${A_FILE_PATH}"`
  
  if [[ "${FILE_ENCODING}" =~ "ASCII" ]]; then
    continue
  fi

  if [ "${FILE_ENCODING}" = "UTF-8 (LF)" ]; then
    continue
  fi
  
  echo "${A_FILE_PATH}: ${FILE_ENCODING}"
  nkf -wd --overwrite "${A_FILE_PATH}"
done