blocks|key|213775|text|使用pry查看Rails模块会发现，可以像这样检测控制台调用：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|213776|Rails.const_defined?+'Console'|code-block|syntax|javascript|213777|和类似如下的服务器调用：|213778|Rails.const_defined?+'Server'|213779|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pry/pry^0|7|5|2|3|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|13|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

Peeking at the <code>Rails</code> module using <a href="https://github.com/pry/pry">pry</a> reveals that console invocations can be detected like this:

<pre><code>Rails.const_defined? 'Console'
</code></pre>

And server invocations like this:

<pre><code>Rails.const_defined? 'Server'
</code></pre>

blocks|key|432075|text|非常有帮助。谢谢@crishoj。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|432076|我想更仔细地检查Console对象，了解我正在处理的另一个问题，并发现可以使用Rails::Console达到Console常量，因此另一个检查选项是使用：|offset|length|style|CODE|432077|defined?+Rails::Console
defined?+Rails::Server|code-block|syntax|javascript|432078|entityMap^0|0|13|E|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Super helpful. Thanks @crishoj. 

I wanted to examine the Console object more closely for another problem I am working on and found out that the Console constant can be reached with <code>Rails::Console</code>, so another option for checking would be to use:

<pre><code>defined? Rails::Console
defined? Rails::Server
</code></pre>

blocks|key|213864|text|无论是否使用Puma/Passenger这样的应用服务器，使用Rails5都可以通过以下三种方法来确定应用程序的运行方式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|213865|#+We+are+running+in+a+CLI+console
defined?(Rails::Console)

#+We+are+running+as+a+Rack+application+(including+Rails)
caller.any?{%7Cl%7C+l+=~+%25r{/config.ru/}}

#+We+are+running+as+a+CLI+console
caller.any?{%7Cl%7C+l+=~+%25r{/lib/rake/task.rb:\d%2B:in+`execute'}}|code-block|syntax|javascript|213866|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Using Rails 5 with or without an app-server like Puma/Passenger, here are three ways to determine how your app is running:

<pre><code># We are running in a CLI console
defined?(Rails::Console)

# We are running as a Rack application (including Rails)
caller.any?{|l| l =~ %r{/config.ru/}}

# We are running as a CLI console
caller.any?{|l| l =~ %r{/lib/rake/task.rb:\d+:in `execute'}}
</code></pre>

blocks|key|213918|text|每个命令的环境摘要。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|213919|我发现现有的答案要么是不完整的，多余的，要么不是详尽的。下面是每个命令的表格式以及生成的环境。|213920|Rails+4.2|213921|%7C+Command++++++++++++++++++++++++++++%7C++Rails.const_defined?(+"Console"+)++%7C++Rails.const_defined?(+"Server"+)++%7C+++++++++++++++ARGV++++++++++++++%7C
%7C------------------------------------%7C-------------------------------------%7C------------------------------------%7C---------------------------------%7C
%7C+`rake+db:migrate:status`+++++++++++%7C++false++++++++++++++++++++++++++++++%7C++true++++++++++++++++++++++++++++++%7C++["db:migrate:status"]++++++++++%7C
%7C+`rails+console`++++++++++++++++++++%7C++true+++++++++++++++++++++++++++++++%7C++true++++++++++++++++++++++++++++++%7C++[]+++++++++++++++++++++++++++++%7C
%7C+`rails+server`+++++++++++++++++++++%7C++false++++++++++++++++++++++++++++++%7C++true++++++++++++++++++++++++++++++%7C++[]+++++++++++++++++++++++++++++%7C
%7C+`rails+g+migration+new_migration`++%7C++false++++++++++++++++++++++++++++++%7C++true++++++++++++++++++++++++++++++%7C++["migration",+"new_migration"]+%7C
%7C+`rails+r+"puts+'Hi'"`++++++++++++++%7C++false++++++++++++++++++++++++++++++%7C++true++++++++++++++++++++++++++++++%7C++[]+++++++++++++++++++++++++++++%7C|code-block|syntax|javascript|213922|您可以看到，仅仅检查“服务器”是否被定义为Rails常量并不能捕获生成器，比如rails+g+migration。您需要检查ARGV才能做到这一点。|offset|length|style|CODE|213923|我希望这能帮到你。我只能立即访问Rails+4.2，但可以随意添加其他Rails版本的部分，以及添加任何需要“捕捉”的额外命令。|213924|entityMap^0|0|0|0|0|L|5|13|H|1Q|4|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$M|Z|N|10|O|P]|$M|11|N|12|O|P]|$M|13|N|14|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|15|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|T|$]]

<h2>Summary of the environment for each command.</h2>

I found the existing answers to be either incomplete, redundant or not exhaustive. So here is a table format of each command and what the resulting environment looks like.

<h3>Rails 4.2</h3>

<pre><code>| Command | Rails.const_defined?( "Console" ) | Rails.const_defined?( "Server" ) | ARGV |
|------------------------------------|-------------------------------------|------------------------------------|---------------------------------|
| `rake db:migrate:status` | false | true | ["db:migrate:status"] |
| `rails console` | true | true | [] |
| `rails server` | false | true | [] |
| `rails g migration new_migration` | false | true | ["migration", "new_migration"] |
| `rails r "puts 'Hi'"` | false | true | [] |
</code></pre>

You can see that just checking for "Server" being defined as a <code>Rails</code> constant will not catch generators, like <code>rails g migration</code>. You need to check the <code>ARGV</code> to do that.

I hope this helps. I only had immediate access to Rails 4.2 but feel free to add sections for other Rails versions, as well as add any additional commands that need "catching".

blocks|key|432099|text|当Rails+5在Passenger下运行时，没有定义‘'Server’。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|432100|我找到的最好的解决方案是this+answer的变体：|offset|length|432101|if+%25w(rails+rake).include?(File.basename($0))
+++<console+or+runner>
else
+++<server>+++++++
end|code-block|syntax|javascript|432102|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/12088025/detect-if-application-was-started-as-http-server-or-not-rake-task-rconsole-etc/12246652#answer-12242882^0|0|C|4|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@$D|U|E|V|1|W]]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

'Server' isn't defined when Rails 5 runs under Passenger.

The best solution I've found is a variant of <a href="https://stackoverflow.com/questions/12088025/detect-if-application-was-started-as-http-server-or-not-rake-task-rconsole-etc/12246652#answer-12242882">this</a> answer:

<pre><code>if %w(rails rake).include?(File.basename($0))
 &lt;console or runner&gt;
else
 &lt;server&gt; 
end
</code></pre>

blocks|key|213995|text|这是我在passenger/puma上检测sidekiq或运行服务器的版本。考虑到前面的答案，它不是100%25确定在所有情况下都能工作(我还没有测试过在运行rails运行程序或rake任务时是什么样子的)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|213996|@running_app+=+begin
++if+defined?(Rails::Console)
++++'Console'
++elsif+Sidekiq.server?
++++'Worker'
++elsif+defined?(::PhusionPassenger)+%7C%7C+defined?(Rails::Server)+
++++'Server'
++else
++++nil+#+unknown
++end
end|code-block|syntax|javascript|213997|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is my version that detects sidekiq or running server on passenger/puma. Given the previous answers, it is not 100% sure that it would work in all cases (I haven't tested what it's like when running a rails runner or a rake task in general)
<pre class="lang-rb prettyprint-override"><code>@running_app = begin
 if defined?(Rails::Console)
 'Console'
 elsif Sidekiq.server?
 'Worker'
 elsif defined?(::PhusionPassenger) || defined?(Rails::Server) 
 'Server'
 else
 nil # unknown
 end
end
</code></pre>

blocks|key|432144|text|对于Padrino：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|432145|控制台检查：|432146|if+Padrino::constants.include?+:Cli
++++#your+code
end|code-block|syntax|javascript|432147|服务器检查：|432148|if+!Padrino::constants.include?+:Cli
++++#your+code
end|432149|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

For Padrino:

Console check:

<pre><code>if Padrino::constants.include? :Cli
 #your code
end
</code></pre>

Server Check:

<pre><code>if !Padrino::constants.include? :Cli
 #your code
end
</code></pre>

I have a <a href="https://github.com/crishoj/rack_jour" rel="noreferrer">middleware for announcing my application on the local network app using Bonjour</a>, but it's also announcing the service when Rails is invoked from rake or through the console. 

I'd like to exclude these cases, and only use the Bonjour middleware when Rails is running as a server. 

The middleware configuration accepts a proc to exclude middlewares under certain conditions using a <code>proc</code>:

<pre><code>config.middleware.insert_before ActionDispatch::Static, Rack::SSL, :exclude =&gt; proc { |env| 
 env['HTTPS'] != 'on' 
}
</code></pre>

But how do I determine if Rails was invoked from the CLI, console or as a server?

How to determine if Rails is running from CLI, console or as server?

我有一个，但当从rake或通过控制台调用Rails时，它也会声明服务。我想排除这些情况，只在Rails作为服务器运行时才使用Bonjour中间件。中间件配置接受使用proc在特定条件下排除中间件的过程config.middleware.insert_before ActionDispatch::Static, Rack::SSL, :exclude => proc { |env|   env['H

问如何确定Rails是从CLI、控制台还是作为服务器运行？
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