Windows commands that run over SSH are wrapped in a script that writes a
special marker to the two output streams (stdout and stderr). This
allows Vagrant to consume the output streams.
Unfortunately, this leads to a sort of chicken-and-egg problem where no
commands can be run before a wrapper script exists. For example, you
can't make a destination directory to upload the wrapper script without
first creating a wrapper script to make the directory. :)
This commit changes the behavior of the WinSSH communicator to assume
that the destination directory already exists for provisioning scripts.
It also moves the default `upload_path` from the shell provisioner
config so we can have OS-specific defaults.
Finally, it introduces a Windows-specific #upload method which will
properly use a Windows path separator on a non-Windows host.
This update was prompted by updates in openssh to the scp behavior
making source directory paths suffixed with `.` no longer valid
resulting in errors on upload. The upload implementation within
the ssh communicator has been updated to retain the existing
behavior.
Included in this update is modifications to the winrm communicator
so the upload functionality matches that of the ssh communicator
respecting the trailing `.` behavior on source paths. With the
communicators updated to properly handle the paths, the file
provisioner was also updated to simply apply previously defined
path update rules only.
Fixes#10675
As of `net-ssh` version 4.2.0, the key :paranoid has been deprecated in
favor of using :verify_host_key. This commit updates Vagrants ssh config
to use the new key, and deprecates the use of :paranoid.
