Class: DirToXML

Inherits:
Object
  • Object
show all
Includes:
RXFReadWriteModule
Defined in:
lib/dir-to-xml.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(obj = '.', index: 'dir.json', recursive: false, verbose: true, debug: false) ⇒ DirToXML

Returns a new instance of DirToXML.



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# File 'lib/dir-to-xml.rb', line 38

def initialize(obj= '.', index: 'dir.json', recursive: false,
               verbose: true, debug: false)

  if verbose then
    puts
    puts 'DirToXML at your service!'.highlight
    puts
    puts
  end

  @index, @recursive, @verbose, @debug = index, recursive, verbose, debug

  if File.basename(obj) == index then

    #read the index file
    @path = File.dirname(obj)
    puts 'intialize() @path: ' + @path.inspect if @debug

    @dx = read(index)

  else
    @path = obj
    puts 'intialize() @path: ' + @path.inspect if @debug

    new_scan()
  end

end

Instance Attribute Details

#deleted_files ⇒ Object (readonly)

Returns the value of attribute deleted_files.



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# File 'lib/dir-to-xml.rb', line 36

def deleted_files
  @deleted_files
end

#dx ⇒ Object (readonly)

Returns the value of attribute dx.



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# File 'lib/dir-to-xml.rb', line 36

def dx
  @dx
end

#latest_file ⇒ Object (readonly)

Returns the value of attribute latest_file.



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# File 'lib/dir-to-xml.rb', line 36

def latest_file
  @latest_file
end

#latest_files ⇒ Object (readonly)

Returns the value of attribute latest_files.



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# File 'lib/dir-to-xml.rb', line 36

def latest_files
  @latest_files
end

#new_files ⇒ Object (readonly)

Returns the value of attribute new_files.



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# File 'lib/dir-to-xml.rb', line 36

def new_files
  @new_files
end

Instance Method Details

#activity ⇒ Object Also known as: changes 



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# File 'lib/dir-to-xml.rb', line 67

def activity()
  {
    new: @new_files,
    deleted: @deleted_files,
    modified: @latest_files
  }
end

#directories(recursive: false) ⇒ Object

Returns a list of directory names

note: if recursive is true then it will return a 1-dimensional Array

object containing all directory paths including nested directories



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# File 'lib/dir-to-xml.rb', line 82

def directories(recursive: false)

  a = @dx.all
  puts 'inside directories() a: ' + a.inspect if @debug

  if recursive then

    directories.flat_map do |dir_name|

      #puts 'dir_name: ' + dir_name.inspect
      #puts 'path+dir: ' + File.join(@path, dir_name).inspect
      dtx = DirToXML.new(File.join(@path, dir_name), verbose: false, debug: false)
      list = dtx.directories(recursive: true)
      r = [File.join(@path, dir_name)]
      r.concat list if list.any?

      r
    end

  else
    a.select {|x| x.type == 'directory'}.map(&:name)
  end

end

#find_all_by_ext(s) ⇒ Object 



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# File 'lib/dir-to-xml.rb', line 107

def find_all_by_ext(s)
  @dx.find_all_by_ext(s)
end

#find_by_filename(s) ⇒ Object 



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# File 'lib/dir-to-xml.rb', line 111

def find_by_filename(s)
  @dx.find_by_filename(s)
end

#latest ⇒ Object 



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# File 'lib/dir-to-xml.rb', line 115

def latest()

  if @latest_file then
    File.join(@latest_file[:path], @latest_file[:name])
  end

end

#new_scan ⇒ Object 



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# File 'lib/dir-to-xml.rb', line 123

def new_scan()

  t = Time.now
  puts '_new_scan() @path: ' + @path.inspect if @debug
  records = scan_dir @path
  puts '_new_scan() records: ' + records.inspect if @debug

  a = records.map {|x| x[:name]}

  if FileX.exist? File.join(@path, @index) then

    @dx = read()

    old_records = @dx.to_a
    a2 = old_records.map {|x| x[:name]}

    # delete any old files
    #
    @deleted_files = a2 - a

    if @deleted_files.any? then

      @deleted_files.each do |filename|
        record = @dx.find_by_name filename
        record.delete if record
      end

    end

    # Add any new files
    #
    @new_files = a - a2

    if @new_files.any? then
      @dx.import @new_files.map {|filename| getfile_info(filename) }
    end

    if (@deleted_files +  @new_files).any? then

      @dx.last_modified = Time.now.to_s
      @dx.save

      new_scan()

    else

      # check for newly modified files
      # compare the file date with index file last modified date
      #
      dtx_last_modified = Time.parse(@dx.last_modified)

      select_records = records.select do |file|

        file[:mtime] > dtx_last_modified or file[:type] == 'directory'

      end

      puts 'select_records: ' + select_records.inspect if @debug

      find_latest(select_records) if select_records.any?
    end


  else

    @dx = new_index(records)
    find_latest(records) if records.any?

  end

  t2 = Time.now - t
  puts ("directory scanned in %.2f seconds" % t2).info if @verbose

end

#read(index = @index) ⇒ Object 



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# File 'lib/dir-to-xml.rb', line 198

def read(index=@index)

  t = Time.now
  puts 'read path: ' + File.join(@path, index).inspect if @debug

  dx = DxLite.new(File.join(@path, index), autosave: false)

  t2 = Time.now - t
  puts ("%s read in %.2f seconds" % [@index, t2]).info if @verbose

  return dx

end