Contents

# frozen_string_literal: true

require "cobra_commander/component_tree"

module CobraCommander
  # Formats CLI ls output
  class FormattedOutput
    attr_accessor :tree

    SPACE  = "    "
    BAR    = "│   "
    TEE    = "├── "
    CORNER = "└── "

    def initialize(app_path)
      @tree = ComponentTree.new(app_path).to_h
    end

    def run!
      puts @tree[:name]
      list_dependencies(@tree)
      nil
    end

  private

    def list_dependencies(deps, outdents = [])
      deps[:dependencies].each do |dep|
        decide_on_line(deps, dep, outdents)
      end
    end

    def decide_on_line(parent, dep, outdents)
      if parent[:dependencies].last != dep
        add_tee(outdents, dep)
      else
        add_corner(outdents, dep)
      end
    end

    def add_tee(outdents, dep)
      puts line(outdents, TEE, dep[:name])
      list_dependencies(dep, ([BAR] + outdents))
    end

    def add_corner(outdents, dep)
      puts line(outdents, CORNER, dep[:name])
      list_dependencies(dep, (outdents + [SPACE]))
    end

    def line(outdents, sym, name)
      (outdents + [sym] + [name]).join
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
cobra_commander-0.3.1	lib/cobra_commander/formatted_output.rb
cobra_commander-0.3.0	lib/cobra_commander/formatted_output.rb
cobra_commander-0.2.0	lib/cobra_commander/formatted_output.rb
cobra_commander-0.1.2	lib/cobra_commander/formatted_output.rb
cobra_commander-0.1.1	lib/cobra_commander/formatted_output.rb