Module: StructuredCsv::CsvJoin

Defined in:
lib/structured_csv/csv_join.rb

Class Method Summary collapse

Class Method Details

.convert(csvdir, outfile) ⇒ Object 



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# File 'lib/structured_csv/csv_join.rb', line 31

def self.convert(csvdir, outfile)
  raise "first argument must be a directory!" unless File.directory?(csvdir)

  csv = CSV.open(outfile, "wb", encoding: "UTF-8")

  csvfiles = Dir.glob(File.join(csvdir, "**", "*.csv")).sort
  raise "directory must contain .csv files!" if csvfiles.empty?

  # Assume all files use the same header structure as the first CSV file
  header    = []
  csvheader = ""

  csvfiles.each do |csvfile|
    content = StructuredCsv::Common.load_csv(csvfile)

    csvheader = content.shift
    if header.empty?
      header = ["name"] + csvheader
      csv << header
    end

    basename = Pathname.new(csvfile).basename.sub_ext("").to_s
    content.each do |filerow|
      row = []
      filerow.each do |value|
        row << case value
               when String
                 value.strip
               else
                 value
               end
      end

      all_empty = row.all? do |f|
        f.nil? || f.empty?
      end
      next if all_empty

      row.unshift(basename)

      csv << row
    end
  end

  csv.close
end

.join(csv, section_name) ⇒ Object 



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# File 'lib/structured_csv/csv_join.rb', line 7

def self.join(csv, section_name)
  first_row = nil
  last_row  = -1

  warn "section_name #{section_name}"

  csv.each_with_index do |row, index|
    if first_row.nil? && Csv2Yaml.is_start_of_portion?(row, section_name)
      warn "found first"
      first_row = index + 1
      next
    end

    next unless !first_row.nil? && Csv2Yaml.is_row_empty?(row)

    warn "found last"
    last_row = index
    break
  end

  warn "first #{first_row}  last #{last_row}"
  csv[first_row..last_row]
end