Module: Weigh::Util

Defined in:
lib/weigh/util.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.neat_size(bytes) ⇒ Object 



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# File 'lib/weigh/util.rb', line 4

def self.neat_size(bytes)
  # return a human readble size from the bytes supplied
  bytes = bytes.to_f
  if bytes > 2 ** 40       # TiB: 1024 GiB
    neat = sprintf("%.2f TiB", bytes / 2**40)
  elsif bytes > 2 ** 30    # GiB: 1024 MiB
    neat = sprintf("%.2f GiB", bytes / 2**30)
  elsif  bytes > 2 ** 20   # MiB: 1024 KiB
    neat = sprintf("%.2f MiB", bytes / 2**20)
  elsif bytes > 2 ** 10    # KiB: 1024 B
    neat = sprintf("%.2f KiB", bytes / 2**10)
  else                    # bytes
    neat = sprintf("%.0f bytes", bytes)
  end
  neat
end

.report(summary, total_size) ⇒ Object 



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# File 'lib/weigh/util.rb', line 50

def self.report(summary,total_size)
  summary.sort{|a,b| a[1]<=>b[1]}.each { |elem|
    size     = elem[1]
    filename = elem[0]
    puts sprintf("%15s   %s\n", neat_size(size), filename)
  }

  puts sprintf("%16s %s\n", "---", "---")
  puts sprintf("%15s   %s\n", self.neat_size(total_size), ":total size")
  puts sprintf("%16s %s\n", "---", "---")
end

.sum_dir(dir, verbose = false) ⇒ Object 



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# File 'lib/weigh/util.rb', line 21

def self.sum_dir(dir,verbose=false)
  # return the size of a given directory
  #"Entering: #{dir}"
  count=0
  dir_size=0
  data={}
  Find.find(dir) do |path|
    count += 1
    next if FileTest.symlink?(path)
    next if dir == path
    if FileTest.directory?(path)
      ret = sum_dir(path,verbose)
      size = ret[:dir_size]
      count += ret[:count]
      dir_size += size
      Find.prune
    else
      size = FileTest.size(path)
      #puts "File: #{path} is #{size}"
      puts "Found zero size file: #{path}" if verbose
      dir_size += size
    end
  end
  #puts "Exiting: #{dir} with #{dir_size}"
  data[:dir_size] = dir_size
  data[:count] = count
  data
end

Instance Method Details

#sum_dir(dir, verbose = false) ⇒ Object 



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# File 'lib/weigh/util.rb', line 62

def sum_dir(dir,verbose=false)
  # return the size of a given directory
  #"Entering: #{dir}"
  count=0
  dir_size=0
  data={}
  Find.find(dir) do |path|
    count += 1
    next if FileTest.symlink?(path)
    next if dir == path
    if FileTest.directory?(path)
      ret = sum_dir(path,verbose)
      size = ret[:dir_size]
      count += ret[:count]
      dir_size += size
      Find.prune
    else
      size = FileTest.size(path)
      #puts "File: #{path} is #{size}"
      puts "Found zero size file: #{path}" if verbose
      dir_size += size
    end
  end
  #puts "Exiting: #{dir} with #{dir_size}"
  data[:dir_size] = dir_size
  data[:count] = count
  data
end