bash Ruby on Rails：如何指定运行脚本环境
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Ruby on Rails: How can I specify runner script environment
提问by Goro
I am using a shell script to run some runner scripts in my Ruby on Rails app. I need to run it on the production database, but the following:
我正在使用 shell 脚本在我的 Ruby on Rails 应用程序中运行一些运行器脚本。我需要在生产数据库上运行它，但如下：
#!/bin/bash
/usr/bin/ruby RAILS_ENV=production ../script/runner ../lib/tasks.rb
gives an error:
给出一个错误：
/usr/bin/ruby: No such file or directory -- RAILS_ENV=production (LoadError)
I have tried to force it in config/environment.rb
我试图在 config/environment.rb 中强制它
ENV['RAILS_ENV'] ||= 'production'
or even
甚至
ENV['RAILS_ENV'] = 'production'
but even with that it still runs in development environment.
但即便如此，它仍然在开发环境中运行。
Update: I can force the scripts to connect to the right database by editing the config/database.yml file, but I wonder what's the proper way of doing it.
更新：我可以通过编辑 config/database.yml 文件来强制脚本连接到正确的数据库，但我想知道这样做的正确方法是什么。
回答by nitecoder
The help on the command line for script/runner gives you your answer.
script/runner 的命令行帮助为您提供了答案。
script/runner -e production Model.method
回答by Garrett
If that's your command, the order of your arguments is your biggest problem.
如果这是您的命令，那么您的参数顺序是您最大的问题。
/usr/bin/ruby RAILS_ENV=production ../script/runner ../lib/tasks.rb
Is different than.
不同于。
/usr/bin/ruby ../script/runner ../lib/tasks.rb RAILS_ENV=production
The second example is looking for the file, the first one is setting a runtime variable while ruby interpreting it as the file you want to run.
第二个示例是查找文件，第一个示例是设置运行时变量，而 ruby 将其解释为您要运行的文件。
回答by Avery Payne
If you redo your script like this:
如果你像这样重做你的脚本：
#!/bin/bash
RAILS_ENV=production
/usr/bin/ruby ../script/runner ../lib/tasks.rb
...that will make it stick for the lifetime of the script. To make it stick for the lifetime of the shell's session, change it to
...这将使其在脚本的整个生命周期内都保持不变。要使其在 shell 会话的整个生命周期内保持不变，请将其更改为
#!/bin/bash
export RAILS_ENV=production
/usr/bin/ruby ../script/runner ../lib/tasks.rb
回答by shodanex
You can set the environment variable like this :
您可以像这样设置环境变量：
RAILS_ENV=production /usr/bin/ruby ../script/runner ../lib/tasks.rb
回答by gaspar
RAILS_ENV=production script/rails runner 'user = User.find(:first, :conditions => {:admin => true}) ; user.password, user.password_confirmation = "mypasswd"; user.save!'
it worked for me
它对我有用
