From: "Dan0042 (Daniel DeLorme) via ruby-core" <ruby-core@...>
Date: 2025-12-07T21:57:19+00:00
Subject: [ruby-core:124048] [Ruby Feature#21766] Pathname + FileUtils making sweet music together

Issue #21766 has been updated by Dan0042 (Daniel DeLorme).


Remember that `FileUtils` is loaded dynamically, so it would be something like

```ruby
class Pathname
  def mkdir_p(...) = _fileutils(:mkdir_p, ...)
  def ln(...) = _fileutils(:ln, ...)
  def ln_s(...) = _fileutils(:ln_s, ...)
  def ln_sf(...) = _fileutils(:ln_sf, ...)
  def cp(...) = _fileutils(:cp, ...)
  def cp_r(...) = _fileutils(:cp_r, ...)
  def mv(...) = _fileutils(:mv, ...)
  def rm(...) = _fileutils(:rm, ...)
  def rm_r(...) = _fileutils(:rm_r, ...)
  def rm_rf(...) = _fileutils(:rm_rf, ...)
  
  private def _fileutils(name, ...)
    require "pathname/fileutils"
    send(name, ...)
  end
end


#pathname/fileutils.rb
require "fileutils"
class Pathname
  def mkdir_p(...) = FileUtils.mkdir_p(@path, ...)
  def ln(...) = FileUtils.ln(@path, ...)
  def ln_s(...) = FileUtils.ln_s(@path, ...)
  def ln_sf(...) = FileUtils.ln_sf(@path, ...)
  def cp(...) = FileUtils.cp(@path, ...)
  def cp_r(...) = FileUtils.cp_r(@path, ...)
  def mv(...) = FileUtils.mv(@path, ...)
  def rm(...) = FileUtils.rm(@path, ...)
  def rm_r(...) = FileUtils.rm_r(@path, ...)
  def rm_rf(...) = FileUtils.rm_rf(@path, ...)
end
```

----------------------------------------
Feature #21766: Pathname + FileUtils making sweet music together
https://bugs.ruby-lang.org/issues/21766#change-115479

* Author: gurgeous (Adam Doppelt)
* Status: Open
----------------------------------------
I love Pathname. I love FileUtils. Let's bring these two classes EVEN CLOSER TOGETHER by adding some tragically missing helpers. Something like this, perhaps?

``` ruby
class Pathname
  def mkdir_p(...) = FileUtils.mkdir_p(@path, ...)
  def ln(...) = FileUtils.ln(@path, ...)
  def ln_s(...) = FileUtils.ln_s(@path, ...)
  def ln_sf(...) = FileUtils.ln_sf(@path, ...)
  def cp(...) = FileUtils.cp(@path, ...)
  def cp_r(...) = FileUtils.cp_r(@path, ...)
  def mv(...) = FileUtils.mv(@path, ...)
  def rm(...) = FileUtils.rm(@path, ...)
  def rm_r(...) = FileUtils.rm_r(@path, ...)
  def rm_rf(...) = FileUtils.rm_rf(@path, ...)
end
```

There are some concerns about making pathname.rb more dependent on FileUtils, which I understand. What's the best way forward? Let's do it!


(also see https://github.com/ruby/pathname/issues/64 and https://github.com/ruby/pathname/issues/72)



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