在没有一些初始化程序的情况下运行rake db:migrate

问题描述

限时删除！！

我正在尝试运行jruby -S rake db:migrate，但是我不想在每次迁移时在config/initializers中启动守护程序.有没有办法做到这一点?到目前为止，我只是将守护程序文件移动到扩展名为.bak的文件中，以便在进行迁移时Rails不会加载该文件.

I am trying to run jruby -S rake db:migrate, but I do not want to start up a daemon in config/initializers whenever I do a migrate. Is there a way to do this? Up until now, I have just been moving the daemon file to a file with a .bak extension so that rails doesn't load it when I do the migrate.

我怀疑这是一种愚蠢的做事方式.有更好的方法吗?

I suspect that this is a stupid way of doing things. Is there a better way?

哦，我正在运行jruby(如果有关系的话).

Oh and I am running jruby ( if it matters ).

推荐答案

运行时:

NODAEMON=1 rake db:migrate

在初始化程序中:

unless ENV['NODAEMON']
# ...
end

您还可以创建用于设置NODAEMON的单独任务，例如

You can also create separate task for setting NODAEMON, e.g.

task :fast_migrate do
  ENV['NODAEMON'] = '1' # or just set global variable, or some config
  Rake['db:migrate'].invoke
end

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