FileUtils#link_entry

link_entry(src, dest, dereference_root = false, remove_destination = false)

# File tmp/rubies/ruby-3.3.0/lib/fileutils.rb, line 812
def link_entry(src, dest, dereference_root = false, remove_destination = false)
  Entry_.new(src, nil, dereference_root).traverse do |ent|
    destent = Entry_.new(dest, ent.rel, false)
    File.unlink destent.path if remove_destination && File.file?(destent.path)
    ent.link destent.path
  end
end

Creates hard links; returns nil.

Arguments src and dest should be interpretable as paths.

If src is the path to a file and dest does not exist, creates a hard link at dest pointing to src:

Example

FileUtils.touch('src0.txt')
File.exist?('dest0.txt') # => false
FileUtils.link_entry('src0.txt', 'dest0.txt')
File.file?('dest0.txt')  # => true

If src is the path to a directory and dest does not exist, recursively creates hard links at dest pointing to paths in src:

Example

FileUtils.mkdir_p(['src1/dir0', 'src1/dir1'])
src_file_paths = [
  'src1/dir0/t0.txt',
  'src1/dir0/t1.txt',
  'src1/dir1/t2.txt',
  'src1/dir1/t3.txt',
  ]
FileUtils.touch(src_file_paths)
File.directory?('dest1')        # => true
FileUtils.link_entry('src1', 'dest1')
File.file?('dest1/dir0/t0.txt') # => true
File.file?('dest1/dir0/t1.txt') # => true
File.file?('dest1/dir1/t2.txt') # => true
File.file?('dest1/dir1/t3.txt') # => true

Keyword arguments:

dereference_root: true - dereferences src if it is a symbolic link.
remove_destination: true - removes dest before creating links.

Raises an exception if dest is the path to an existing file or directory and keyword argument remove_destination: true is not given.

Related: FileUtils.ln (has different options).

See also .link_entry #link #ln #install also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0

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