Module: Utilities::Files

Defined in:
lib/utilities/files.rb

Class Method Summary collapse

Class Method Details

.lines_per_file(files) ⇒ Object

Parameters:

  • files (Array) 


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# File 'lib/utilities/files.rb', line 4

def self.lines_per_file(files)
  puts 'Lines per file: '
  files.each do |f|
    puts `wc -l #{f}`
  end
end

.recognized_batch_file_type?(file) ⇒ Array [Boolean, String]

Parameters:

  • file (String)

Returns:

  • (Array [Boolean, String]) 


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# File 'lib/utilities/files.rb', line 13

def self.recognized_batch_file_type?(file)
  mimetype = `file -b "#{file.path}"`.gsub(/\n/, '')
  case mimetype
  when /utf-8/i, /ascii/i, /bibtex/i
    return [true, mimetype]
  else
    return [false, mimetype]
  end
end

.replace(original_file, new_file) ⇒ Boolean

Parameters:

  • file_to_replace —

    a file path, this file will be destroyed

  • file_to_keep —

    a file path, this file will named the name of file_to_replace

Returns:

  • (Boolean) 


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# File 'lib/utilities/files.rb', line 27

def self.replace(original_file, new_file)
  return false unless File.exist?(original_file) && File.exist?(new_file)
  fo = original_file
  ft = fo + '.tmp'

  begin
    File.rename(fo, ft)
    File.rename(new_file, fo)

    File.delete(ft) if File.exist?(ft)
  rescue
    return false
  ensure
    unless File.exist?(original_file) # as we exit we must have a file there
      File.rename(ft, original_file)
    end
  end
  true
end