Class: HieraExaminer

Inherits:
Object
  • Object
show all
Defined in:
lib/hiera-examiner.rb

Instance Method Summary collapse

Constructor Details

#initialize(conf) ⇒ HieraExaminer

Returns a new instance of HieraExaminer.



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# File 'lib/hiera-examiner.rb', line 8

def initialize(conf)
  puts conf
  @conf = conf
end

Instance Method Details

#explain(key, scope) ⇒ Object 



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# File 'lib/hiera-examiner.rb', line 31

def explain(key, scope)
  puts 'key ' + (key or "UNKNOWN")
  print 'scope ' 
  puts scope
  
  puts "#{key.red}\n#{explainDetail(key, scope, '', true)}"
end

#explainDetail(key, scope, prefix = '', showSource = false, yamlFileParam = '') ⇒ Object 



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# File 'lib/hiera-examiner.rb', line 39

def explainDetail(key, scope, prefix = '', showSource = false, yamlFileParam = '')
  startExp = /%{hiera\('/
  endExp = /'\)}/
  
  firstIndex = key.index(startExp)
  
  if (firstIndex)
    newIndex = firstIndex + 9
    endIndex = key.index(endExp) - 1
    padding = "#{prefix}#{' '.rjust((firstIndex + 2) - prefix.length)}"
    yamlMap = yamlLookup(key[newIndex..endIndex], scope)
    yamlVal = yamlMap[:val]
    yamlFile = yamlMap[:file]
    
    newVal = ''
    keyVal = key
    if (firstIndex == 0)
      keyVal = "#{key[0..endIndex + 3].bold.red}#{key[endIndex + 4..-1]}"
      newVal += "#{yamlVal}#{key[endIndex + 4..-1]}"
    else
      keyVal = "#{key[0..firstIndex - 1]}#{key[firstIndex..endIndex + 3].bold.red}#{key[endIndex + 4..-1]}"
      newVal += "#{key[0..firstIndex - 1]}#{yamlVal}#{key[endIndex + 4..-1]}"
    end
    
    if (showSource && !yamlFileParam.empty?())
      yamlFileString = " \u2794 #{yamlFileParam}"
      res = "#{keyVal}#{yamlFileString.cyan}\n"
    else
      res = "#{keyVal}\n"
    end
    
    res += "#{padding}#{"\u2B07".yellow}\n"
    if yamlVal
      yamlFileString = " \u2794 #{yamlFile}"
      yamlVal = "#{yamlVal.bold.green}#{yamlFileString.cyan}"
    else
      yamlVal = 'MISSING'.magenta.blink
    end
    res += "#{padding}#{yamlVal}"
    if (newVal.index(startExp))
      res += "\n#{explainDetail(newVal, scope, prefix)}"
    end
    
    return res
  else
    hieraVal = hieraLookup(key, scope)
    yamlMap = yamlLookup(key, scope)
    yamlVal = yamlMap[:val]
    yamlFile = yamlMap[:file]
    
    if (hieraVal.empty?() || (!yamlVal || yamlVal.empty?()))
      return 'MISSING'.magenta.blink
    elsif (yamlVal.index(startExp))
      if (showSource)
        res = explainDetail(yamlVal, scope, "#{prefix}|", true, yamlFile)
      else
        res = explainDetail(yamlVal, scope, "#{prefix}|")
      end
      res = "|\n#{res}\n#{hieraVal.green}"
      return res
    else
      res = "|\n#{yamlVal}"
      return res
    end
  end
end

#hieraLookup(key, scope) ⇒ Object 



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# File 'lib/hiera-examiner.rb', line 25

def hieraLookup(key, scope)
  hiera = Hiera.new(:config => @conf) 
  puts "Looking up '#{key}' in '#{@conf}' with '#{scope}'"
  return hiera.lookup(key, @conf, scope)
end

#yamlLookup(key, scope) ⇒ Object 



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# File 'lib/hiera-examiner.rb', line 13

def yamlLookup(key, scope) 
  hiera = Hiera.new(:config => @conf) 
  value = {val: nil, file: nil}
  Hiera::Backend.datasourcefiles('yaml', scope, 'yaml') { |source, file| 
    yaml = YAML.load_file(file)
    if (yaml.has_key?(key) && value[:val] == nil)
      value = {val: yaml[key], file: file}
    end
  }
  return value
end