capistrano中的符號字符串concat

Question

我正在運行capistrano 3.

如何獲取下面的行爲正確？我希望cap deploy:test_symbols回到「你是男人！」

task :test_symbols do 
    set :what, 'the man!' 
    puts "you are #{:what}" 

    # below causes error: 
    # undefined local variable or method `what' for main:Object 

    puts "you are #{what}" 

    end 

Answer 1

當你set一個變量，你需要fetch它的使用：

task :test_symbols do 
    set :what, 'the man!' 
    puts "you are #{fetch(:what)}" 
end