如何将命令行参数传递给rake任务 [英] How to pass command line arguments to a rake task

问题描述

我有一个rake任务需要插入一个值到多个数据库。

我想从命令行或从另一个 rake任务将此值传递到rake任务。

我如何做到这一点？

解决方案

选项和依赖需要在数组内。 ..

  namespace：thing do 
 descit do a thing
 task：work， ：option，：foo，：bar] => [：environment] do | t，args | 
 putswork，args 
 end 
 
 task：another，[：option，：foo，：bar] => [：environment] do | t，args | 
 putsanother＃{args}
 Rake :: Task [thing：work] invoke（args [：option]，args [：foo]，args [：bar]）
＃或splat args 
＃Rake :: Task [thing：work]。invoke（* args）
 end 
 
 end 
  
 
 
 
然后
 工作[1,2,3] 
 => work：{：option =>1，：foo =>2，：bar =>3} 
 
 rake：another [1,2,3] 
 =>另一个{：option =>1，：foo =>2，：bar =>3} 
 => work：{：option =>1，：foo =>2，：bar =>3} 
  
 
I have a rake task that needs to insert a value into multiple databases.  

I'd like to pass this value into the rake task from the command line, or from another rake task.

How can I do this?
解决方案
options and dependencies need to be inside arrays...
namespace :thing do
  desc "it does a thing"
  task :work, [:option, :foo, :bar] => [:environment] do |t, args|
    puts "work", args
  end

  task :another, [:option, :foo, :bar] => [:environment] do |t, args|
    puts "another #{args}"
    Rake::Task["thing:work"].invoke(args[:option], args[:foo], args[:bar])
    # or splat the args
    # Rake::Task["thing:work"].invoke(*args)
  end

end
Then
rake thing:work[1,2,3]
=> work: {:option=>"1", :foo=>"2", :bar=>"3"}

rake thing:another[1,2,3]
=> another {:option=>"1", :foo=>"2", :bar=>"3"}
=> work: {:option=>"1", :foo=>"2", :bar=>"3"}


                        
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