only decode the first block of yaml about lua-yaml HOT 1 OPEN

irb(main):035:0> str="---\nhooks:\n  AfterInstall:\n    - location: /Users/derekmorgan/src/deploy-plugin/afterinstall.sh\n      timeout: 2\n    - location: /Users/derekmorgan/src/deploy-plugin/afterinstall.sh\
n      timeout: 2\nfiles:\n  - source: ./my-file.txt\n    destination: /temp\n"
=> "---\nhooks:\n  AfterInstall:\n    - location: /Users/derekmorgan/src/deploy-plugin/afterinstall.sh\n      timeout: 2\n    - location: /Users/derekmorgan/src/deploy-plugin/afterinstall.sh\n      timeou...
irb(main):036:0> puts str
---
hooks:                                                                                                                                 
  AfterInstall:                                                                                                                        
    - location: /Users/derekmorgan/src/deploy-plugin/afterinstall.sh                                                                   
      timeout: 2                                              
    - location: /Users/derekmorgan/src/deploy-plugin/afterinstall.sh
      timeout: 2                                              
files:                                           
  - source: ./my-file.txt                        
    destination: /temp                           
=> nil                                           
irb(main):037:0> YAML.load_stream str
=> 
[{"hooks"=>{"AfterInstall"=>[{"location"=>"/Users/derekmorgan/src/deploy-plugin/afterinstall.sh", "timeout"=>2}, {"location"=>"/Users/derekmorgan/src/deploy-plugin/afterinstall.sh", "timeout"=>2}]},
  "files"=>[{"source"=>"./my-file.txt", "destination"=>"/temp"}]}]