Method: FileUtils.move

Defined in:

lib/fileutils.rb

.move ⇒ Object

Moves entries.

Arguments src (a single path or an array of paths) and dest (a single path) should be interpretable as paths.

If src and dest are on different file systems, first copies, then removes src.

May cause a local vulnerability if not called with keyword argument secure: true; see Avoiding the TOCTTOU Vulnerability.

If src is the path to a single file or directory and dest does not exist, moves src to dest:

tree('src0')
# => src0
#    |-- src0.txt
#    `-- src1.txt
File.exist?('dest0') # => false
FileUtils.mv('src0', 'dest0')
File.exist?('src0')  # => false
tree('dest0')
# => dest0
#    |-- src0.txt
#    `-- src1.txt

If src is an array of paths to files and directories and dest is the path to a directory, copies from each path in the array to dest:

File.file?('src1.txt') # => true
tree('src1')
# => src1
#    |-- src.dat
#    `-- src.txt
Dir.empty?('dest1')    # => true
FileUtils.mv(['src1.txt', 'src1'], 'dest1')
tree('dest1')
# => dest1
#    |-- src1
#    |   |-- src.dat
#    |   `-- src.txt
#    `-- src1.txt

Keyword arguments:

• force: true - if the move includes removing src (that is, if src and dest are on different file systems), ignores raised exceptions of StandardError and its descendants.

• noop: true - does not move files.

• secure: true - removes src securely; see details at FileUtils.remove_entry_secure.

• verbose: true - prints an equivalent command:

  FileUtils.mv('src0', 'dest0', noop: true, verbose: true)
  FileUtils.mv(['src1.txt', 'src1'], 'dest1', noop: true, verbose: true)
  

  Output:

  mv src0 dest0
  mv src1.txt src1 dest1
  

# File 'lib/fileutils.rb', line 1187

def mv(src, dest, force: nil, noop: nil, verbose: nil, secure: nil)
  fu_output_message "mv#{force ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if verbose
  return if noop
  fu_each_src_dest(src, dest) do |s, d|
    destent = Entry_.new(d, nil, true)
    begin
      if destent.exist?
        if destent.directory?
          raise Errno::EEXIST, d
        end
      end
      begin
        File.rename s, d
      rescue Errno::EXDEV,
             Errno::EPERM # move from unencrypted to encrypted dir (ext4)
        copy_entry s, d, true
        if secure
          remove_entry_secure s, force
        else
          remove_entry s, force
        end
      end
    rescue SystemCallError
      raise unless force
    end
  end
end