Class: BuildDirTreeVisitor

Inherits:
TreeNodeVisitor show all
Defined in:
lib/treevisitor/visitors/build_dir_tree_visitor.rb

Overview

Buils a TreeNode from a filesystem directory It similar to CloneTreeNodeVisitor

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ BuildDirTreeVisitor

Returns a new instance of BuildDirTreeVisitor.



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 16

def initialize
  super
  @root = nil
  @stack = []
  @nr_directories = 0
  @nr_files = 0
end

Instance Attribute Details

#nr_directories ⇒ Object (readonly)

Returns the value of attribute nr_directories.



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 13

def nr_directories
  @nr_directories
end

#nr_files ⇒ Object (readonly)

Returns the value of attribute nr_files.



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 14

def nr_files
  @nr_files
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 11

def root
  @root
end

Instance Method Details

#enter_tree_node(pathname) ⇒ Object 



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 24

def enter_tree_node( pathname )
  if @stack.empty?
    tree_node = TreeNode.new( File.basename( pathname ) )
    @root = tree_node
  else
    tree_node = TreeNode.new( File.basename( pathname ), @stack.last )
  end
  @nr_directories += 1
  @stack.push( tree_node )
end

#exit_tree_node(pathname) ⇒ Object 



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 35

def exit_tree_node( pathname )
  @stack.pop
end

#visit_leaf_node(pathname) ⇒ Object 



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# File 'lib/treevisitor/visitors/build_dir_tree_visitor.rb', line 39

def visit_leaf_node( pathname )
  @nr_files  += 1
  # connect the leaf_node created to the last tree_node on the stack
  LeafNode.new( File.basename(pathname), @stack.last )
end