Class: Listen::Record

Inherits:
Object
  • Object
show all
Defined in:
lib/listen/record/entry.rb,
lib/listen/record.rb,
lib/listen/record/symlink_detector.rb

Defined Under Namespace

Classes: Entry, SymlinkDetector

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(directory) ⇒ Record

Returns a new instance of Record.



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# File 'lib/listen/record.rb', line 14

def initialize(directory)
  @tree = _auto_hash
  @root = directory.to_s
end

Instance Attribute Details

#root ⇒ Object (readonly)

TODO: one Record object per watched directory? TODO: deprecate



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# File 'lib/listen/record.rb', line 12

def root
  @root
end

Instance Method Details

#_sub_tree(rel_path) ⇒ Object 



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# File 'lib/listen/record.rb', line 60

def _sub_tree(rel_path)
  @tree.each_with_object({}) do |(path, meta), result|
    next unless path.start_with?(rel_path)

    if path == rel_path
      result.merge!(meta)
    else
      sub_path         = path.sub(%r{\A#{rel_path}/?}, '')
      result[sub_path] = meta
    end
  end
end

#add_dir(rel_path) ⇒ Object 



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# File 'lib/listen/record.rb', line 19

def add_dir(rel_path)
  if ![nil, '', '.'].include?(rel_path)
    @tree[rel_path] ||= {}
  end
end

#build ⇒ Object 



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# File 'lib/listen/record.rb', line 73

def build
  @tree = _auto_hash
  # TODO: test with a file name given
  # TODO: test other permissions
  # TODO: test with mixed encoding
  symlink_detector = SymlinkDetector.new
  remaining = ::Queue.new
  remaining << Entry.new(root, nil, nil)
  _fast_build_dir(remaining, symlink_detector) until remaining.empty?
end

#dir_entries(rel_path) ⇒ Object 



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# File 'lib/listen/record.rb', line 47

def dir_entries(rel_path)
  subtree = if [nil, '', '.'].include? rel_path.to_s
    @tree
  else
    _sub_tree(rel_path)
  end

  subtree.transform_values do |values|
    # only get data for file entries
    values.key?(:mtime) ? values : {}
  end
end

#file_data(rel_path) ⇒ Object 



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# File 'lib/listen/record.rb', line 35

def file_data(rel_path)
  dirname, basename = Pathname(rel_path).split.map(&:to_s)
  if [nil, '', '.'].include? dirname
    @tree[basename] ||= {}
    @tree[basename].dup
  else
    @tree[dirname] ||= {}
    @tree[dirname][basename] ||= {}
    @tree[dirname][basename].dup
  end
end

#unset_path(rel_path) ⇒ Object 



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# File 'lib/listen/record.rb', line 30

def unset_path(rel_path)
  dirname, basename = Pathname(rel_path).split.map(&:to_s)
  _fast_unset_path(dirname, basename)
end

#update_file(rel_path, data) ⇒ Object 



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# File 'lib/listen/record.rb', line 25

def update_file(rel_path, data)
  dirname, basename = Pathname(rel_path).split.map(&:to_s)
  _fast_update_file(dirname, basename, data)
end