Class: Pipely::Tasks::Graph

Inherits:
Rake::TaskLib
  • Object
show all
Includes:
Rake::DSL
Defined in:
lib/pipely/tasks/graph.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args, &task_block) ⇒ Graph

Returns a new instance of Graph.



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# File 'lib/pipely/tasks/graph.rb', line 32

def initialize(*args, &task_block)
  setup_ivars(args)

  # create the `path` directory if it doesn't exist
  directory path

  namespace name do
    task :full => path do |_, task_args|
      RakeFileUtils.send(:verbose, verbose) do
        if task_block
          task_block.call(*[self, task_args].slice(0, task_block.arity))
        end

        run_task verbose
      end
    end

    task :open => :full do
      `open #{target_filename}`
    end
  end

  desc "Graphs the full pipeline definition using Graphviz"
  task name => "#{name}:full"
end

Instance Attribute Details

#definition ⇒ Object

Pipeline definition instance



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# File 'lib/pipely/tasks/graph.rb', line 23

def definition
  @definition
end

#name ⇒ Object

Name of task.

default:

:graph



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# File 'lib/pipely/tasks/graph.rb', line 14

def name
  @name
end

#path ⇒ Object

Path to write graph images to.

default:

"graphs"



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# File 'lib/pipely/tasks/graph.rb', line 20

def path
  @path
end

#verbose ⇒ Object

Use verbose output. If this is set to true, the task will print the local and remote paths of each step file it uploads to S3.

default:

true



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# File 'lib/pipely/tasks/graph.rb', line 30

def verbose
  @verbose
end

Instance Method Details

#run_task(verbose) ⇒ Object 



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# File 'lib/pipely/tasks/graph.rb', line 64

def run_task(verbose)
  puts "Generating #{target_filename}" if verbose
  Pipely.draw(definition.to_json, target_filename)
end

#setup_ivars(args) ⇒ Object 



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# File 'lib/pipely/tasks/graph.rb', line 58

def setup_ivars(args)
  @name = args.shift || :graph
  @verbose = true
  @path = "graphs"
end

#target_filename ⇒ Object 



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# File 'lib/pipely/tasks/graph.rb', line 69

def target_filename
  "#{path}/#{definition.base_filename}.png"
end