capistrano for Rails3 的步骤

最新的文章看这里： http://siwei.me/blog/posts/capistrano-basics

参考这个文章：

http://stackoverflow.com/questions/4294970/rails-3-capistrano-tutorial-to-deploy-to-server-using-git


http://www.aaginskiy.com/technology/2011/02/deploying-rails-3-apps-with-capistrano/


1. vim Gemfile, 增加：

gem 'capistrano'

2. $ bundle install

3. $ capify .
会生成两个文件： Capfile ,  config/deploy.rb

4. 编辑后者，然后 $ cap deploy.

5. $ cap deploy:setup 会建立必须的 文件夹

6. 编辑 $ shared/config/database.yml

7. 加入下面几行：

  1 load 'deploy/assets'
  2 set :rake,      "bundle exec rake"
32 namespace :assets do
33   task :precompile do
34     run "cd #{release_path} && bundle exec rake RAILS_ENV=production RAILS_GROUPS=a
35   end
36 end
37
38 desc "Copy database.yml to release_path"
39   task :cp_database_yml do
40     puts "executing my customized command: "
41     puts "cp -r #{shared_path}/config/* #{release_path}/config/"
42     run "cp -r #{shared_path}/config/* #{release_path}/config/"
43   end
44
45 before "deploy:assets:symlink", :cp_database_yml
46


这里是一个完整的deploy.rb ：

https://github.com/beijing-rubyist/bjrubyist/blob/master/config/deploy.rb