Module: BLZ

Defined in:
lib/blz.rb,
lib/blz/bank.rb

Defined Under Namespace

Classes: Bank

Constant Summary collapse

DATA_FILE = 
find_data_file

Class Method Summary collapse

Class Method Details

.find_data_file(now = Date.today) ⇒ Object 



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# File 'lib/blz.rb', line 13

def self.find_data_file(now=Date.today)
  glob = Dir[ File.join(File.dirname(__FILE__), '../data/*.tsv.gz') ].sort

  file2time = proc do |f|
    match = f.match /(?<y>\d{4})_(?<m>\d\d)_(?<d>\d\d)\.tsv\.gz$/
    Date.new match[:y].to_i, match[:m].to_i, match[:d].to_i
  end

  filename = glob.find {|c| now <= file2time[c] } || glob.last

  # sanity check
  t = file2time[filename]
  if t < Date.new(2013, 12, 9) || now > t + 90
    warn '[BLZ] The data provided may not be accurate.'
  end

  filename
end