Class: GitGo::Formatter

Inherits:
Object
  • Object
show all
Defined in:
lib/git_go/formatter.rb

Class Method Summary collapse

Class Method Details

.columns(array, options = {}) ⇒ String

Creates a nice column format to output an Array to the console.

Options Hash (options):

  • :spacing (Integer) — default: 4 —

    the amount of spaces between the columns.

  • :header (true, false) — default: false —

    whether there is a header present or not.



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# File 'lib/git_go/formatter.rb', line 13

def self.columns(array, options = {})
  options[:spacing] ||= 4
  options[:header]  ||= false

  columns        = 1
  column_lengths = []
  out            = ""

  array.each { |row| columns = row.length if row.length > columns }

  columns.times do |i|
    array.each do |row|
      column_lengths[i] ||= 0
      column_lengths[i] = row[i].length if row[i].length > column_lengths[i]
    end
  end

  array.each_with_index do |row, row_index|
    row.each_with_index do |column, index|
      column_spacing = index + 1 == columns ? 0 : options[:spacing]
      fill           = column_lengths[index] - column.length

      out << column + " " * (fill + column_spacing)
      out << "\n" if index + 1 == columns
    end

    if options[:header]
      row.each_with_index do |column, index|
        if row_index == 0
          column_spacing = index + 1 == columns ? 0 : options[:spacing]
          out << "-" * column_lengths[index] + " " * column_spacing
        end

        out << "\n" if index + 1 == columns && row_index == 0
      end
    end
  end

  out
end