Class: Piperun::Pipeline

Inherits:
Object
  • Object
show all
Defined in:
lib/piperun/pipeline.rb

Defined Under Namespace

Classes: DSL

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(src, dst) ⇒ Pipeline

Returns a new instance of Pipeline.



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# File 'lib/piperun/pipeline.rb', line 7

def initialize(src, dst)
  @src = File.absolute_path(src)
  @dst = File.absolute_path(dst)
  @filters = []
end

Instance Attribute Details

#filters ⇒ Object (readonly)

Returns the value of attribute filters.



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# File 'lib/piperun/pipeline.rb', line 6

def filters
  @filters
end

Class Method Details

.build(src, dst, &block) ⇒ Object 



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# File 'lib/piperun/pipeline.rb', line 17

def self.build(src, dst, &block)
  pipe = new(src, dst)
  dsl = DSL.new(pipe)
  dsl.instance_eval(&block)
  pipe
end

Instance Method Details

#add_filter(f) ⇒ Object 



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# File 'lib/piperun/pipeline.rb', line 13

def add_filter(f)
  @filters << f
end

#run(files = nil) ⇒ Object 



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# File 'lib/piperun/pipeline.rb', line 42

def run(files = nil)
  if files == nil
    Dir.chdir @src do
      files = Dir['**/*'].reject {|fn| File.directory?(fn) }
    end
  end

  src = @src

  @filters.each do |f|
    begin
      break if files.length == 0

      if f == @filters.last
        dst = @dst
        FileUtils.mkdir_p dst
      else
        dst = Dir.mktmpdir
      end

      files = f.run(src, dst, files)
    ensure
      FileUtils.remove_entry_secure src unless src == @src
    end

    src = dst
  end

  return files
end

#watch ⇒ Object 



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# File 'lib/piperun/pipeline.rb', line 73

def watch
  Listen.to(@src) do |modified, added, removed|
    run
  end.start
end