Class: Kodekopelli::FileGenerator

Inherits:
Object
  • Object
show all
Includes:
ERB::Util, WEBrick
Defined in:
lib/kodekopelli/file_generator.rb

Overview

The FileGenerator class coordinates the necessary actions to generate output files from one or more definitions files.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(properties_hash = nil) ⇒ FileGenerator

Returns a new FileGenerator.

:call-seq:

FileGenerator.new( properties_hash=nil ) -> file generator



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# File 'lib/kodekopelli/file_generator.rb', line 19

def initialize(properties_hash = nil)
  # Stores properties for property and attribute value expansions
  # and system configuration
  @property_hash = Kodekopelli::FrozenKeyHash.new
  
  unless(properties_hash.nil?)
    properties_hash.each_pair { |key,value|
      @property_hash[key] = value
    }
  end
  
  # Tracks attributes defined in the definitions
  # file(s); also provides for nested contexts.
  @context_stack = []

  # Allows for node-specific context creation
  @node_stack = []

  # Context containing those attributes that
  # are relevant to the node currently being
  # processed.
  @current_context = {}
  
  @logger = MinimalLogger.new
end

Instance Attribute Details

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/kodekopelli/file_generator.rb', line 12

def logger
  @logger
end

Instance Method Details

#process(files) ⇒ Object

Processes one or more Kodekopelli definitions files, given an array of file locations.

:call-seq:

process(array)



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# File 'lib/kodekopelli/file_generator.rb', line 188

def process(files)
  @logger.raw(Kodekopelli.)
  files.each { |current_file|
    process_definitions(current_file)
  }
end

#run(runtime_args) ⇒ Object

:nodoc:



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# File 'lib/kodekopelli/file_generator.rb', line 68

def run(runtime_args) # :nodoc:
  properties_file = nil
  
  opts = OptionParser.new
  
  opts.banner = "Usage: kodekopelli [options] [configfile [configfile2 [configfile3] ...]]"
  opts.separator ""
  opts.separator "Core Options:"
    
  opts.on("-h", "--help", "print this message") { 
    puts opts.to_s
    return
  }
  
  opts.on("--version", "print the version information and exit") {
	puts "Kodekopelli version #{$KODEKOPELLI_VERSION}"
	return
  }
  
  opts.on("-q", "--quiet", "be extra quiet in log messages") {
    @logger.silent = true 
  }
  
  opts.on("-v", "--verbose", "be extra verbose in log messages") {
    @logger.verbose = true 
  }
  
  opts.on("-l", "--logo", "print the Kodekopelli logo and exit") {
    puts Kodekopelli.
    return
  }
  
  opts.on("--props k1=v1,k2=v2,...", Array,
    "use the property key/value pair(s)", "specified") do |properties|
    properties.each { |current_property|
      first_delim_index = current_property.index('=')
      if(first_delim_index > 0)
        # Don't bother processing properties that don't have
        # delimiters or in which no property name was
        # specified.
        current_property_key = current_property[0,first_delim_index]
        current_property_value = current_property[first_delim_index + 1, current_property.length-1]
        
       @property_hash[current_property_key]= current_property_value
        
      end
     }
  end
  
  opts.on("--propsfile file", "load all properties from file with --props", "taking precedence") do |propsfile|
    properties_file = propsfile
  end
  
  opts.separator ""
  opts.separator "Other Options:"
  
  opts.on("--server [port]", Integer, "launch an HTTP server with the current",
             "folder as the context root using,", "optionally, the port specified",
             "(defaults to port 80)") do |port|
    port_number = port || 80
    
    s = HTTPServer.new(
      :Port         => port_number,
      :DocumentRoot => Dir::pwd
    )

    trap("INT") {
    @logger.info("Shutting down HTTP server listening on port [#{port_number}]...")
    s.shutdown 
    }
    
    @logger.info("Starting HTTP server listening on port [#{port_number}]...")
    @logger.info("Context root location:  [#{Dir::pwd}]")
    s.start

    return
  end
  
  opts.on("--system", "display all system properties available to", "Kodekopelli and exit") {
    puts "*** SYSTEM PROPERTIES (#{Time.now.to_s}) ***"
    puts sprintf("%-30s     %s", "<KEY>", "<VALUE>")
    ENV.to_hash.each_pair {|key,value|
      puts sprintf("%-30s => %s", key, value)
    }
    return
  }
  
  # Perform a destructive parse, leaving only the
  # configuration files, if any were specified.
  begin
    opts.parse!(runtime_args)
  rescue => cl_err
    puts "Unable to process command line options:  #{cl_err.to_s}"
    puts opts.to_s
    exit(1)
  end
  
  unless(properties_file.nil?)
    digest_properties_file(properties_file)
  end
  
  if(runtime_args.size > 0)
    begin
      process(runtime_args)
    rescue => err
      @logger.always("Root cause:  #{err.to_s}")
      @logger.always("Build failed.")
      exit(1)
    end
  else
    puts "No Kodekopelli configuration files specified."
    puts opts.to_s
  end
end