rollout_shard

in itchef/cookbooks/fb_helpers/libraries/node_methods.rb [670:715]

• 36 lines of code
• 5 McCabe index (conditional complexity)

    def rollout_shard(start_date)
      rollout_map = [
        1,
        10,
        25,
        50,
        99,
      ]
      rd = Date.parse(start_date)

      
      
      today = Date.today
      numdays = (today - rd).to_i
      num_weekend_days = 0
      (0..numdays).each do |i|
        t = rd + i
        if t.saturday? || t.sunday?
          num_weekend_days += 1
        end
      end

      
      numdays -= num_weekend_days

      
      if numdays < 0
        return -1
      end

      Chef::Log.debug(
        "fb_helpers: rollout_shard: days into rollout: #{numdays}",
      )

      if numdays >= rollout_map.size
        FB::Helpers.warn_to_remove(3)
        shard = 99
      else
        shard = rollout_map[numdays]
      end
      Chef::Log.debug(
        "fb_helpers: rollout_shard: rollout_shard: #{shard}",
      )
      return shard
    end