proxy越しのgem install

事前にproxyを環境変数http_proxyに設定しておく必要があるようです。こちらを参照。

C:\Ruby>gem install rails -y
INFO:  `gem install -y` is now default and will be removed
INFO:  use --ignore-dependencies to install only the gems you list
ERROR:  http://gems.rubyforge.org/ does not appear to be a repository
ERROR:  could not find gem rails locally or in a repository

C:\Ruby>set http_proxy=http://192.168.1.251:8080

C:\Ruby>gem install rails -y
INFO:  `gem install -y` is now default and will be removed
INFO:  use --ignore-dependencies to install only the gems you list
Successfully installed rake-0.8.7
Successfully installed activesupport-2.3.3
Successfully installed activerecord-2.3.3
Successfully installed rack-1.0.0
Successfully installed actionpack-2.3.3
Successfully installed actionmailer-2.3.3
Successfully installed activeresource-2.3.3
Successfully installed rails-2.3.3
8 gems installed
Installing ri documentation for rake-0.8.7...
Installing ri documentation for activesupport-2.3.3...
Installing ri documentation for activerecord-2.3.3...
Installing ri documentation for rack-1.0.0...
Installing ri documentation for actionpack-2.3.3...
Installing ri documentation for actionmailer-2.3.3...
Installing ri documentation for activeresource-2.3.3...
Installing RDoc documentation for rake-0.8.7...
Installing RDoc documentation for activesupport-2.3.3...
Installing RDoc documentation for activerecord-2.3.3...
Installing RDoc documentation for rack-1.0.0...
Installing RDoc documentation for actionpack-2.3.3...
Installing RDoc documentation for actionmailer-2.3.3...
Installing RDoc documentation for activeresource-2.3.3...

C:\Ruby>

たのしいRuby 第2版 Rubyではじめる気軽なプログラミング