Method: Fech::MapGenerator.generate_row_map_from_file

Defined in:

lib/fech/map_generator.rb

.generate_row_map_from_file(source_dir, row_type) ⇒ Object

For a given row type, parses its source file and returns a mapping object for it.

# File 'lib/fech/map_generator.rb', line 180

def self.generate_row_map_from_file(source_dir, row_type)
  versions = []
  version_indexes = []
  data = {}
  text = open(row_map_file(source_dir, row_type)).read
  split_char = text.index(/\r/) ? /\r/ : /\n/
  rows = text.split(split_char).collect {|x| x.split(',')}
  rows.each do |row|
    row = row.collect {|x| x.gsub("\n", "")}
    if row.first.nil?
      require 'ruby-debug'; debugger
    end
    if row.first.downcase == "canonical"
      versions = row[1..-1].uniq.collect {|x| x unless (x.nil? || x.empty?)}.compact
      row.each_with_index {|x, ind| version_indexes << ind unless (x.nil? || x.empty?)}.slice!(1)
      version_indexes.slice!(0, 1)
      versions.each {|x| data[x] = [] }
      
    elsif row.first.size > 0
      canonical = row.first
      
      versions.zip(version_indexes).each do |version, row_index|
        index = row[row_index]
        data[version][index.to_i - 1] = canonical.to_sym if index.to_i > 0
      end
    end
  end

  row_map = {}
  data.each {|key, value| row_map[key] = value}
  row_map
end