Cron 作业错误帮助 - Rails Runner 错误

Question

* * * * * /bin/bash -l -c 'cd /Users/boris/projects/MyApp/ && rails runner "Resque.enqueue(Place)"'

基本上我需要执行以下操作：

1. 使用以下命令加载 Ruby RVM
2. 导航到 MyApp Dir
3. 运行以下行： rails runner "Resque.enqueue(Place)

上面的 cron 似乎正在运行，但它生成以下内容rails runner 出现错误 这是怎么回事？

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/dependency.rb:52:in `initialize': Valid types are [:development, :runtime], not nil (ArgumentError)
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:359:in `new'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:359:in `search'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:354:in `gems_size'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:179:in `resolve'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/source_index.rb:95:in `sort_by'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:175:in `each'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:175:in `sort_by'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:175:in `resolve'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:160:in `start'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:128:in `resolve'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:127:in `catch'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/resolver.rb:127:in `resolve'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/definition.rb:151:in `resolve'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/definition.rb:90:in `specs'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/definition.rb:135:in `specs_for'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/definition.rb:124:in `requested_specs'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/environment.rb:23:in `requested_specs'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/runtime.rb:11:in `setup'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler.rb:107:in `setup'
    from /Users/boris/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.12/lib/bundler/setup.rb:6
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /Users/boris/projects/chaggregator/config/boot.rb:6
    from script/rails:5:in `require'
    from script/rails:5

Answer 1

实际上，最好的方法是使用 rvm 包装器。您可以创建这样的包装器：

rvm wrapper ruby-1.9.3-p0@somegemset appname rails 

二进制文件可以是rails、rake、gem 或您安装的任何其他ruby 二进制文件。发生的情况是 rvm 创建一个包装器，该包装器将在执行rails 命令之前获取正确的 rvm 环境。在系统范围的 rvm 上，包装器通常会放置在 /usr/local/rvm/bin/ 中。

现在，您可以从 cron 执行以下操作：

*/3 * * * * cd /path/to/your/app && appname_rails runner "Resque.enqueue(Place)" -e production

这将 cd 进入您的应用程序目录，并每 3 分钟执行一次您刚刚创建的 rvm 包装器。本示例基于rails 3和生产环境。

Answer 2

在运行任何 Ruby 代码之前，您需要通过 RVM 获取正确的环境。因此，在命令中包含类似这样的内容：

source /usr/local/rvm/environments/ruby-1.9.2-p180@my-gemset

因此，一个潜在的解决方案是：

SHELL=/bin/bash
* * * * * source /{path_to_rvm_environment_for_ruby}@{gemset} && cd /Users/boris/projects/MyApp/ && rails runner "Resque.enqueue(Place)"'

Answer 3

这里有很多令人感动的内容，这里有一些关于在您的环境中检查的事情的指示（ruby、rvm、bundle）——发布您的发现并从那里开始。

捆绑程序的路径问题，更改还是不更改？

捆绑错误

我猜这些命令在外部运行良好克朗？如果您以其他用户身份运行 cron 作业，请检查该用户的环境。