[更新]MacでRuby on Rails開発：環境構築から
MacにはデフォルトでRubyが入ってそうです。 ターミナルを開いてrails -vを叩いたらバージョン情報が出てきました。
ruby 1.8.7 (2009-06-08 patchlevel 173) *universal-darwin10.0*
そしてRubyだけじゃなくRailsも入ってましてびっくりしました。 すごいですねMacは。。。 て、railsのバージョンもrails -vで確認できますが、 デフォルトのバージョンは古いそうで下記のコマンドでアップグレードできます。
sudo gem update rails
するとこんなログ情報が出ます。
Updating installed gems
Updating rails
WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and
/usr/bin aren't both writable.
WARNING: You don't have /Users/zolo/.gem/ruby/1.8/bin in your PATH,
gem executables will not run.
Successfully installed activesupport-2.3.8
Successfully installed activerecord-2.3.8
Successfully installed rack-1.1.0
Successfully installed actionpack-2.3.8
Successfully installed actionmailer-2.3.8
Successfully installed activeresource-2.3.8
Successfully installed rails-2.3.8
Gems updated: activesupport, activerecord, rack, actionpack, actionmailer, activeresource, rails
Installing ri documentation for activesupport-2.3.8...
Installing ri documentation for activerecord-2.3.8...
Installing ri documentation for rack-1.1.0...
Installing ri documentation for actionpack-2.3.8...
Installing ri documentation for actionmailer-2.3.8...
Installing ri documentation for activeresource-2.3.8...
Installing ri documentation for rails-2.3.8...
Installing RDoc documentation for activesupport-2.3.8...
Installing RDoc documentation for activerecord-2.3.8...
Installing RDoc documentation for rack-1.1.0...
Installing RDoc documentation for actionpack-2.3.8...
Installing RDoc documentation for actionmailer-2.3.8...
Installing RDoc documentation for activeresource-2.3.8...
Installing RDoc documentation for rails-2.3.8...
多少時間がかかります。 これでMacでのRuby開発の準備は完了です。
更新
gem update railsにsudoを付けないとこんなエラーが出るかも
WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and
/usr/bin aren't both writable.
WARNING: You don't have /Users/paku-k/.gem/ruby/1.8/bin in your PATH,
gem executables will not run.
ERROR: Error installing rails:
bundler requires RubyGems version >= 1.3.6
