ruby-on-rails - Capistrano 3，Rails 4，数据库配置未指定适配器

Question

当我开始


上限生产部署


它失败是这样的：

DEBUG [4ee8fa7a] Command: cd /home/deploy/myapp/releases/releases/20131025212110 && (RVM_BIN_PATH=~/.rvm/bin RAILS_ENV= ~/.rvm/bin/myapp_rake assets:precompile )
DEBUG [4ee8fa7a]        rake aborted!
DEBUG [4ee8fa7a]        database configuration does not specify adapter

您会看到“ RAILS_ENV =“实际上是空的，我想知道为什么会这样吗？我认为这是后一个错误的原因，因为我没有数据库配置。

deploy.rb文件如下：

set :application, 'myapp'
set :repo_url, 'git@github.com:developer/myapp.git'
set :branch, :master
set :deploy_to, '/home/deploy/myapp/releases'
set :scm, :git
set :devpath, "/home/deploy/myapp_development"
set :user, "deploy"
set :use_sudo, false
set :default_env, { rvm_bin_path: '~/.rvm/bin' }

set :keep_releases, 5

namespace :deploy do
  desc 'Restart application'
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      # Your restart mechanism here, for example:
      within release_path do
        execute " bundle exec thin restart -O -C config/thin/production.yml"
      end
    end
  end

  after :restart, :clear_cache do
    on roles(:web), in: :groups, limit: 3, wait: 10 do
      within release_path do

      end
    end
  end

  after :finishing, 'deploy:cleanup'
end

Database.yml：

production:
  adapter: mysql2
  encoding: utf8
  database: myapp_production
  pool: 5
  username: user
  password: pass
  host: localhost

development:
  adapter: mysql2
  encoding: utf8
  database: myapp_development
  pool: 5
  username: user
  password: pass
  host: localhost

如果我添加，此问题已解决

set :rails_env, "production"

到我的deploy.rb，但这对我来说似乎是硬编码，并且我确定有更好的解决方案。

Answer 1

编辑：根据this pull request，现在已在1.1.0的版本capistrano-rails中修复。

根据this Github issue，另一种解决方法是编辑您的Capfile。注释掉这两行

#require'capistrano / rails / assets'
#require'capistrano / rails / migrations'


并把这行

需要“ capistrano / rails”


这将正确设置您的RAILS_ENV变量。