Class: Semi::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/semi/config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path = nil) ⇒ Config

Returns a new instance of Config.



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# File 'lib/semi/config.rb', line 11

def initialize(path=nil)
  @defaults = {}
  @validators = {}
  @files = []
  @commands = {}

  if path
    self.load(path)
  end
end

Instance Attribute Details

#commands ⇒ Object (readonly)

Returns the value of attribute commands.



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# File 'lib/semi/config.rb', line 9

def commands
  @commands
end

#defaults ⇒ Object (readonly)

Returns the value of attribute defaults.



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# File 'lib/semi/config.rb', line 6

def defaults
  @defaults
end

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/semi/config.rb', line 7

def files
  @files
end

#validators ⇒ Object (readonly)

Returns the value of attribute validators.



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# File 'lib/semi/config.rb', line 8

def validators
  @validators
end

Instance Method Details

#load(path) ⇒ Object 



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# File 'lib/semi/config.rb', line 22

def load(path)
  begin
    data = YAML.load_file(path)
  rescue Errno::ENOENT
    $stderr.puts "Unable to read #{path}"
    exit(1)
  end

  if data.key? 'defaults'
    @defaults = data['defaults']
  end

  if data.key? 'validate'
    @validators = data['validate']
  end

  if data.key? 'files'
    @files = data['files']
  end

  if data.key? 'commands'
    @commands = data['commands']
  end

  return data
end

#process_file(filename, dictionary) ⇒ Object 



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# File 'lib/semi/config.rb', line 49

def process_file(filename, dictionary)
  if Dir.exist? filename
     Dir.glob("#{filename}/*").each do |file|
       process_file(file, dictionary)
    end
  elsif File.exist? filename
    # Read the file and apply @dictionary values
    contents = File.open(filename, 'r') do |fp|
      renderer = ERB.new(fp.readlines.join, nil, '%<>-')
      begin
        renderer.result(dictionary.instance_eval {binding})
      rescue SyntaxError => e
        $stderr.puts "Error processing ERB expressions in #{filename}"
        $stderr.puts "ERB reported #{e}"
        exit 1
      end
    end

    # Reopen the file and write the rendered contents
    File.open(filename, 'w') do |fp|
      fp.write(contents)
    end
  else
    raise RuntimeError, "Unable to find file or directory named #{filename}"
  end
end