Unable to install powershell on MacOS without root access (brew)

It seems that at this moment root/admin access is needed in order to install powershell on MacoS.

This is an issue for two reasons:

• a shell should not need admin to be installed (i installed zsh, fish, tcsh, …) without needing admin
• prevents automation and CI usage, like on Travis

Steps to reproduce

Follow install instructions and do:

brew cask install powershell

Expected behavior

Succeeding installation without prompting for root/admin password

Actual behavior

==> Caveats
A OpenSSL-backed libcurl is required for custom handling of certificates.
This is rarely needed, but you can install it with
  brew install curl --with-openssl
See https://github.com/PowerShell/PowerShell/issues/2211

==> Satisfying dependencies
All Formula dependencies satisfied.
==> Downloading https://github.com/PowerShell/PowerShell/releases/download/v6.0.0-beta.8/powershell-6.0.0-beta.8-osx.10.12-x64.pkg
Already downloaded: /Users/ssbarnea/Library/Caches/Homebrew/Cask/powershell--6.0.0-beta.8.pkg
==> Verifying checksum for Cask powershell
==> Uninstalling Cask powershell
==> Running uninstall process for powershell; your password may be necessary
==> Uninstalling packages:
==> Installing Cask powershell
==> Running installer for powershell; your password may be necessary.
==> Package installers may write to any location; options such as --appdir are ignored.

Environment data

MacOS High Sierra (10.13)

[TravisEz13]

This is by design… Please use the tar.gz if you want to install without admin access.

[TravisEz13]

We could build a formula if it was in our own repo. Would that work? I have a prototype in my personal repo: https://github.com/TravisEz13/Homebrew-PowerShell

<div> GitHub</div><div>TravisEz13/Homebrew-PowerShell</div><div>Contribute to TravisEz13/Homebrew-PowerShell development by creating an account on GitHub.</div>