GailsがGemの開発に使用していません

Question

私は現時点では小さなGemを構築していますが、Rails Gを特定のものに使用したいと思っていますが、毎回私は同じ（長い）応答

宝石を作るときにレール環境で実際に作業していないのに、Rails Gを使用することは可能だと思いましたか？

は、ここでの応答です：

Usage: 
    rails new APP_PATH [options] 

Options: 
    -r, [--ruby=PATH]          # Path to the Ruby binary of your choice 
                 # Default: /Users/David/.rvm/rubies/ruby-2.3.0/bin/ruby 
    -m, [--template=TEMPLATE]        # Path to some application template (can be a filesystem path or URL) 
    -d, [--database=DATABASE]        # Preconfigure for selected database (options: mysql/postgresql/sqlite3/oracle/frontbase/ibm_db/sqlserver/jdbcmysql/jdbcsqlite3/jdbcpostgresql/jdbc) 
                 # Default: sqlite3 
     [--webpack=WEBPACK]        # Preconfigure for app-like JavaScript with Webpack (options: react/vue/angular) 
     [--skip-yarn], [--no-skip-yarn]     # Don't use Yarn for managing JavaScript dependencies 
     [--skip-gemfile], [--no-skip-gemfile]    # Don't create a Gemfile 
    -G, [--skip-git], [--no-skip-git]      # Skip .gitignore file 
     [--skip-keeps], [--no-skip-keeps]     # Skip source control .keep files 
    -M, [--skip-action-mailer], [--no-skip-action-mailer] # Skip Action Mailer files 
    -O, [--skip-active-record], [--no-skip-active-record] # Skip Active Record files 
    -P, [--skip-puma], [--no-skip-puma]     # Skip Puma related files 
    -C, [--skip-action-cable], [--no-skip-action-cable] # Skip Action Cable files 
    -S, [--skip-sprockets], [--no-skip-sprockets]   # Skip Sprockets files 
     [--skip-spring], [--no-skip-spring]    # Don't install Spring application preloader 
     [--skip-listen], [--no-skip-listen]    # Don't generate configuration that depends on the listen gem 
     [--skip-coffee], [--no-skip-coffee]    # Don't use CoffeeScript 
    -J, [--skip-javascript], [--no-skip-javascript]  # Skip JavaScript files 
     [--skip-turbolinks], [--no-skip-turbolinks]  # Skip turbolinks gem 
    -T, [--skip-test], [--no-skip-test]     # Skip test files 
     [--skip-system-test], [--no-skip-system-test]  # Skip system test files 
     [--dev], [--no-dev]        # Setup the application with Gemfile pointing to your Rails checkout 
     [--edge], [--no-edge]        # Setup the application with Gemfile pointing to Rails repository 
     [--rc=RC]           # Path to file containing extra configuration options for rails command 
     [--no-rc], [--no-no-rc]       # Skip loading of extra configuration options from .railsrc file 
     [--api], [--no-api]        # Preconfigure smaller stack for API only apps 
    -B, [--skip-bundle], [--no-skip-bundle]    # Don't run bundle install 

Runtime options: 
    -f, [--force]     # Overwrite files that already exist 
    -p, [--pretend], [--no-pretend] # Run but do not make any changes 
    -q, [--quiet], [--no-quiet]  # Suppress status output 
    -s, [--skip], [--no-skip]  # Skip files that already exist 

Rails options: 
    -h, [--help], [--no-help]  # Show this help message and quit 
    -v, [--version], [--no-version] # Show Rails version number and quit 

Description: 
    The 'rails new' command creates a new Rails application with a default 
    directory structure and configuration at the path you specify. 

    You can specify extra command-line arguments to be used every time 
    'rails new' runs in the .railsrc configuration file in your home directory. 

    Note that the arguments specified in the .railsrc file don't affect the 
    defaults values shown above in this help message. 

Example: 
    rails new ~/Code/Ruby/weblog 

    This generates a skeletal Rails installation in ~/Code/Ruby/weblog. 

Answer 1

セット別々.rubyバージョンと.ruby-gemsetファイル

レールの宝石とバンドラの宝石をインストールします。

非レールアプリで使用できる発電機を使用できます。