Rails 3.1和资产管道：用Capistrano部署时遇到问题

我刚刚从Ruby on Rails 3.0.10切换到3.1.0，我想通过Capistrano gem部署我的资产文件（我的本地机器是一个MacOs运行雪豹，我的远程机器运行Ubuntu 10.04 Lucid）。所以，在Official Guide写道，我去掉了load 'deploy/assets'在我Capfile这样的：Rails 3.1和资产管道：用Capistrano部署时遇到问题

# Uncomment if you are using Rails' asset pipeline 
load 'deploy/assets'

现在，当我运行cap deploy命令我碰到下面的错误（错误在底部解释）：

... 

    * executing "cd /<application_absolute_path>/releases/20110925223032 && rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile" 
    servers: ["<my_web_site_ip>"] 
    [<my_web_site_ip>] executing command 
** [out :: <my_web_site_ip>] (in /<application_absolute_path>/releases/20110925223032) 
*** [err :: <my_web_site_ip>] rake aborted! 
*** [err :: <my_web_site_ip>] uninitialized constant Rake::DSL 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/rake.rb:2482:in `const_missing' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/tasklib.rb:8:in `<class:TaskLib>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/tasklib.rb:6:in `<module:Rake>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/tasklib.rb:3:in `<top (required)>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/testtask.rb:4:in `require' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/testtask.rb:4:in `<top (required)>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/test_unit/testing.rake:2:in `require' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/test_unit/testing.rake:2:in `<top (required)>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/test_unit/railtie.rb:12:in `load' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/test_unit/railtie.rb:12:in `block in <class:TestUnitRailtie>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/railtie.rb:183:in `call' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/railtie.rb:183:in `block in load_tasks' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/railtie.rb:183:in `each' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/railtie.rb:183:in `load_tasks' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/engine.rb:395:in `block in load_tasks' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/application/railties.rb:8:in `each' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/application/railties.rb:8:in `all' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/engine.rb:395:in `load_tasks' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/application.rb:99:in `load_tasks' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in `method_missing' 
*** [err :: <my_web_site_ip>] /<application_absolute_path>/releases/20110925223032/Rakefile:7:in `<top (required)>' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/rake.rb:2373:in `load' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile' 
*** [err :: ] /usr/local/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile' 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/rake.rb:1991:in `run' 
*** [err :: <my_web_site_ip>] /usr/local/bin/rake:31:in `<main>' 
    command finished in 4301ms 
*** [deploy:update_code] rolling back 
    * executing "rm -rf /<application_absolute_path>/releases/20110925223032; true" 
    servers: ["<my_web_site_ip>"] 
    [<my_web_site_ip>] executing command 
    command finished in 377ms 
failed: "sh -c 'cd /<application_absolute_path>/releases/20110925223032 && rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile'" on <my_web_site_ip>

所以，我试图解决的答案this question以下问题：

# Rakefile 
require 'rake/dsl_definition' 

require File.expand_path('../config/application', __FILE__) 

<MyApplicationName>::Application.load_tasks

AFTE R I再次运行cap deploy命令我碰到下面的错误：

... 

    * executing "cd /<application_absolute_path>/releases/20110925160036 && rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile" 
    servers: ["<my_web_site_ip>"] 
    [<my_web_site_ip>] executing command 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils.rb:10: warning: already initialized constant RUBY 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils.rb:84: warning: already initialized constant LN_SUPPORTED 
** [out :: <my_web_site_ip>] (in /<application_absolute_path>/releases/20110925160036) 
*** [err :: <my_web_site_ip>] WARNING: Global access to Rake DSL methods is deprecated. Please include 
*** [err :: <my_web_site_ip>] ... Rake::DSL into classes and modules which use the Rake DSL methods. 
*** [err :: <my_web_site_ip>] WARNING: DSL method Object#mkdir_p called at /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `mkdir_p' 
*** [err :: <my_web_site_ip>] WARNING: Global access to Rake DSL methods is deprecated. Please include 
*** [err :: <my_web_site_ip>] ... Rake::DSL into classes and modules which use the Rake DSL methods. 
*** [err :: <my_web_site_ip>] WARNING: DSL method Object#mkdir_p called at /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `mkdir_p' 
*** [err :: <my_web_site_ip>] WARNING: DSL method Object#mkdir_p called at /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `mkdir_p' 
*** [err :: <my_web_site_ip>] WARNING: DSL method Object#mkdir_p called at /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `mkdir_p' 

... 
*** [err :: <my_web_site_ip>] WARNING: DSL method Object#mkdir_p called at /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `mkdir_p' 
... 
*** [err :: <my_web_site_ip>] WARNING: DSL method Object#mkdir_p called at /usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `mkdir_p' 
... 

*** [err :: <my_web_site_ip>] rake aborted! 
*** [err :: <my_web_site_ip>] stack level too deep 
*** [err :: <my_web_site_ip>] /usr/local/lib/ruby/1.9.1/ostruct.rb:92 
    command finished in 48421ms

凡涉及Capistrano的代码是错误的？如何正确使用load 'deploy/assets'声明以使部署过程正常工作？

来源

2011-09-25 Backo

您是否使用了最新的Capistrano的和耙宝石？ –

@Richard Hulse - 是的，我认为是这样的：'$ rake -V＃=> rake，版本0.9.2'，'$ cap -V＃=> Capistrano v2.8.0'。 – Backo

试试这里的解决方案：http://stackoverflow.com/questions/6181312/how-to-fix-the-uninitialized-constant-rakedsl-problem-on-heroku –

您是否尝试过简单地定义自己的任务？这就是我所做的when I ran into this issue：

task :precompile, :role => :app do 
    run "cd #{release_path}/ && rake assets:precompile" 
end 
after "deploy:finalize_update", "deploy:precompile"

你确实需要RVM initialization这个，如果你使用RVM

来源

2011-10-20 12:55:16 Tigraine

Rails 3.1和资产管道：用Capistrano部署时遇到问题

回答

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