Class: Gloss::Watcher

Inherits:
Object
  • Object
show all
Defined in:
lib/gloss/watcher.rb

Instance Method Summary collapse

Constructor Details

#initialize(paths) ⇒ Watcher

Returns a new instance of Watcher.



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# File 'lib/gloss/watcher.rb', line 9

def initialize(paths)
  @paths = paths
  (if @paths.empty?
    @paths = [File.join(Dir.pwd, Config.src_dir)]
    @only = /(?:(\.gl|(?:(?<=\/)[^\.\/]+))\z|\A[^\.\/]+\z)/
  else
    file_names = Array.new
    paths = Array.new
    @paths.each() { |pa|
      pn = Pathname.new(pa)
      paths.<<(pn.parent
.to_s)
      file_names.<<((if pn.file?
        pn.basename
.to_s
      else
        pa
      end))
    }
    @paths = paths.uniq
    @only = /#{Regexp.union(file_names)}/
  end)
end

Instance Method Details

#watch ⇒ Object 



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# File 'lib/gloss/watcher.rb', line 32

def watch()
  Gloss.logger
.info("Now listening for changes in #{@paths.join(", ")}")
  listener = Listen.to(*@paths, latency: 2, only: @only) { |modified, added, removed|
    modified.+(added)
.each() { |f|
      Gloss.logger
.info("Rewriting #{f}")
      content = File.read(f)
      err = catch(:"error") { ||
        Writer.new(Visitor.new(Parser.new(content)
.run)
.run, f)
.run
nil          }
      (if err
        Gloss.logger
.error(err)
      else
        Gloss.logger
.info("Done")
      end)
    }
    removed.each() { |f|
      out_path = Utils.src_path_to_output_path(f)
      Gloss.logger
.info("Removing #{out_path}")
      (if File.exist?(out_path)
        File.delete(out_path)
      end)
      Gloss.logger
.info("Done")
    }
  }
  begin
    listener.start
    sleep
  rescue Interrupt
    Gloss.logger
.info("Interrupt signal received, shutting down")
    exit(0)
  end
end