供養

doppel_old

#!/usr/bin/env bash


readonly DOPPEL_VER="0.0.1"
readonly DOPPEL_ROOT="${DOPPEL_ROOT:-"${HOME}/.doppel"}"

# These messages were generated by ChatGPT
readonly DOPPEL_SUCCES_MESSAGES=(
  "Your project has been generated, time to fire up the coffee machine and get coding!"
  "Project generation complete. Time to caffeinate and conquer some code!"
  "Project generated. Time to put on some tunes and dive into some coding wizardry."
  "Congratulations, your project has been generated! May your code be as bug-free as the Matrix."
  "Project generated. May the source be with you!"
  "Your project is generated and ready to hack."
  "Project generation successful! Time to hack the planet."
  "The project has been created. Your coding journey continues."
  "Your project is now generated and ready for infinite coding adventures!"
  "Your project has been successfully created, time to put on your coding cape and save the day!"
)


function doppel_version() {
  echo "${DOPPEL_VER}"
}


function doppel_help() {
  echo "Usage: doppel [OPTIONS] TEMPLATE_DIRECTORY"
  echo ""
  echo "  Generate a new project from the specified TEMPLATE_DIRECTORY."
  echo ""
  echo "Options:"
  echo "  -n, --name NAME          Specify the project name."
  echo "  -o, --output OUTPUT_DIR  Specify the output directory."
  echo "  -f, --force              Overwrite existing files without prompting."
  echo "  -v, --version            Show the version information."
  echo "  -h, --help               Show this message and exit."
  echo ""
  echo "Example:"
  echo "  doppel /path/to/template"
  echo "  doppel /path/to/template -n my_project -o /path/to/output"
}


function clean_line() {
  echo "$1" | \
    sed -e 's/#.*//' \
        -e 's/^[[:space:]]*//' \
        -e 's/[[:space:]]*$//' \
        -e 's/[[:space:]]*=[[:space:]]*/=/'
}


function split_values() {
  local fpat="([^,]+)|([[:space:]]*\"[^\"]+\"[[:space:]]*)|([[:space:]]*'[^']+'[[:space:]]*)"
  echo "$1" | awk -vFPAT="${fpat}" '{ for(i=1;i<=NF;i++) { print $i } }'
}


function sanitize_value() {
  local v=""
  v="$(echo "$1" | \
       sed -e 's/^[[:space:]]*//' \
           -e 's/[[:space:]]*$//' \
           -e "s/^[\"']//" \
           -e "s/[\"']\$//" \
           -e "s/'/'\"'\"''/g")"
  echo "'$v'"
}


function extract_key() {
  local key="$1"
  key="$(echo "${key}" | cut -d'=' -f1)"
  echo "${key}"
}


function extract_values() {
  local values="$1"

  values="$(echo "${values}" | cut -d'=' -f2)"
  values="$(split_values "${values}")"

  while IFS= read -r v; do
    echo "$(sanitize_value "$v")"
  done <<< "${values}"
}


function print_vars() {
  local key="$1"
  local values="$2"
  local num_values="$(echo "${values}" | wc -l)"

  local v=""
  local cnt=0

  echo -n "${key}="

  if [[ "${num_values}" -gt 1 ]]; then
    echo -n "("

    while IFS= read -r v; do
      cnt="$((cnt + 1))"
      echo -n "$v"

      if [[ "${cnt}" -ne "${num_values}" ]]; then
        echo -n " "
      fi
    done <<< "${values}"

    echo ")"
  else
    echo "${values}"
  fi
}


function load_conf() {
  local template_directory="$1"
  local conf_file="${template_directory}/doppel.conf"

  local lineno=0

  local line=""
  local cleaned_line=""

  local key=""
  local values=""

  if [[ ! -f "${conf_file}" ]]; then
    echo "ERROR: doppel.conf not found in the specified template directory"
    exit 1
  fi

  while read -r line; do
    lineno="$((lineno + 1))"
    cleaned_line="$(clean_line "${line}")"

    if [[ -z "${cleaned_line}" ]]; then
      continue
    fi

    if [[ ! "${cleaned_line}" =~ "=" ]]; then
      echo "WARN: Invalid syntax at line ${lineno}: ${line}"
      continue
    fi

    key="$(extract_key "${cleaned_line}")"
    values="$(extract_values "${cleaned_line}")"

    print_vars "${key}" "${values}"
  done < "${conf_file}"
}


function variable_prompt() {
  echo 'hi'
}


function expansion_templates() {
  echo 'hi'
}


function show_success_message() {
  local array_len="${#DOPPEL_SUCCES_MESSAGES[@]}"
  local index="$((RANDOM % array_len))"
  echo "${DOPPEL_SUCCES_MESSAGES[$index]}"
}


function generate_project() {
  local template_directory="$1"
  local project_name="$2"
  local output_directory="$3"
  local overwrite="$4"

  if [[ ! -d "${template_directory}" ]]; then
    echo "ERROR: specified template directory does not exist"
    exit 1
  fi

  if [[ -d "${output_directory}" ]] && [[ ! ${overwrite} ]]; then
    echo "ERROR: Project directory already exists. Use --force option to overwrite."
    exit 1
  fi

  # doppel.confの構文解析
  #   コメント行を削除
  #   展開すべき変数を解析
  #   不正な行があれば、行番号と一緒にエラーメッセージを表示
  #   最終的に完成したファイルを一時ファイルに出力
  # 変数の確認プロンプトを表示(デフォルト値はdoppel.confの内容)
  # テンプレートのコピーと変数の展開
  #   ディレクトリ名、ファイル名を展開
  #   ファイルの中身を展開
  #   完了メッセージを表示

  load_conf "${template_directory}"
  variable_prompt
  expansion_templates
  show_success_message
}


function doppel_main() {
  local template_directory=""
  local project_name=""
  local output_directory=""
  local force="false"
  local show_version=false
  local show_help=false

  while [[ $# -gt 0 ]]; do
    case "$1" in
      -n|--name) 
        if [[ $# -lt 2 ]]; then
          echo "ERROR: argument missing for $1 option."
          exit 1
        fi
        project_name="$2"
        shift; shift;
        ;;
      -o|--output)
        if [[ $# -lt 2 ]]; then
          echo "ERROR: argument missing for $1 option."
          exit 1
        fi
        output_directory="$2"
        shift; shift;
        ;;
      -f|--force) overwrite="true"; shift ;;
      -v|--version) show_version=true; shift ;;
      -h|--help) show_help=true; shift ;;
      -*|--*)
        echo "ERROR: invalid option -- '$1'"
        echo "Try `doppel --help` for more information"
        exit 1
        ;;
      *)
        break
        ;;
    esac
  done

  if [[ $# -eq 0 ]]; then
    echo "ERROR: Missing TEMPLATE_DIRECTORY argument"
    echo "Try `doppel --help` for more information"
    exit 1
  fi

  if [[ $# -gt 1 ]]; then
    echo "ERROR: Unexpected argument '$2'"
    echo "Try `doppel --help` for more information"
    exit 1
  fi

  template_directory="$1"

  if ${show_version} && ${show_help}; then
    doppel_version
    doppel_help
  elif ${show_version}; then
    doppel_version
  elif ${show_help}; then
    doppel_help
  else
    generate_project "${template_directory}" "${project_name}" "${output_directory}" "${overwrite}"
  fi
}


doppel_main "$@"