https://github.com/ruby/fileutils/commit/5116088d5c

* Windows: Fix warning about undefined if_indextoname()

* Windows: Fix UNIXSocket on MINGW and make .pair more reliable

* Windows: Use nonblock=true for read tests with scheduler

* Windows: Move socket detection from File.socket? to File.stat

Add S_IFSOCK to Windows and interpret reparse points accordingly.
Enable tests that work now.

* Windows: Use wide-char functions to UNIXSocket

This fixes behaviour with non-ASCII characters.
It also fixes deletion of temporary UNIXSocket.pair files.

* Windows: Add UNIXSocket tests for specifics of Windows impl.

* Windows: fix VC build due to missing _snwprintf

Avoid usage of _snwprintf, since it fails linking ruby.dll like so:

  linking shared-library x64-vcruntime140-ruby320.dll
  x64-vcruntime140-ruby320.def : error LNK2001: unresolved external symbol snwprintf
  x64-vcruntime140-ruby320.def : error LNK2001: unresolved external symbol vsnwprintf_l

whereas linking miniruby.exe succeeds.

This patch uses snprintf on the UTF-8 string instead.

Also remove branch GetWindowsDirectoryW, since it doesn't work.

* Windows: Fix dangling symlink test failures

Co-authored-by: Lars Kanis <kanis@comcard.de>

This reverts commit https://github.com/ruby/fileutils/commit/fa65d676ece9.

This caused some incompatibility problems in real-world cases.
https://bugs.ruby-lang.org/issues/18784#change-98927
https://bugs.ruby-lang.org/issues/18784#change-98967

https://github.com/ruby/fileutils/commit/42983c2553

... instead of any StandardError.

To behave like the standard `rm` command, it should only ignore
exceptions about not existing files, not every exception. This should
make debugging some errors easier, because the expectation is that `rm
-rf` will succeed if and only if, all given files (previously existent
or not) are removed. However, due to this exception swallowing, this is
not always the case.

From the `rm` man page

> COMPATIBILITY
>
> The rm utility differs from historical implementations in that the -f
> option only masks attempts to remove non-existent files instead of
> masking a large variety of errors.

https://github.com/ruby/fileutils/commit/fa65d676ec

Co-Authored-By: David Rodríguez <deivid.rodriguez@riseup.net>

The ensure in postorder_traverse was added for [Bug #6756].
The intention was to try to delete the parent directory if it failed to
get the children. (It may be possible to delete the directory if it is
empty.)

However, the ensure region rescue'ed not only "failure to get children"
but also "failure to delete each child". Thus, the following raised
Errno::ENOTEMPTY, but we expect it to raise Errno::EACCES.

```
$ mkdir foo
$ touch foo/bar
$ chmod 555 foo
$ ruby -rfileutils -e 'FileUtils.rm_rf("foo")'
```

This changeset narrows the ensure region so that it rescues only
"failure to get children".

https://github.com/ruby/fileutils/commit/ec5d3b84ea

The test was added for [Bug #6756]. The ticket insisted
`FileUtils.rm_rf` should delete an empty directory even if its
permission is 000. However, the test tried to delete a directory with
permission 700.

https://github.com/ruby/fileutils/commit/d6c2ab2c01

https://github.com/ruby/fileutils/commit/9cc6a082d7

https://github.com/ruby/fileutils/commit/332025bc02

Co-Authored-By: David Rodríguez <deivid.rodriguez@riseup.net>

  [ruby/fileutils] Make verbose output go to stdout instead of stderr

  This reverts commit 510df47f5f7f83918d3aa00316c8a5b959d80d7c.