`pyenv virtualenvs` failure on macOS Big Sur

[p-linnane]

Too many issues will kill our team's development velocity, drastically. Make sure you have checked all steps below.

Prerequisite

• [x] Make sure your problem is not listed in the common build problems.
• [ x Make sure no duplicated issue has already been reported in the pyenv-virtualenv issues. You should look in closed issues, too.
• [x] Make sure you are not asking us to help solving your specific issue.
  • GitHub issues is opened mainly for development purposes. If you want to ask someone to help solving your problem, go to some community site like Gitter, StackOverflow, etc.
• [x] Make sure your problem is not derived from packaging (e.g. Homebrew).
  • Please refer to the package documentation for the installation issues, etc.
• [x] Make sure your problem is not derived from other plugins.
  • This repository is maintaining the pyenv-virtualenv plugin only. Please refrain from reporting issues of other plugins here.

Description

• [x] Platform information (e.g. Ubuntu Linux 20.04): macOS 11 Big Sur
• [x] OS architecture (e.g. amd64): arm64 & x86_64
• [x] pyenv version: 2.3.9
• [x] pyenv-virtualenv version: 1.2.0
• [x] Python version: 3.11.1

 "$(pyenv init -)" && pyenv virtualenvs
  /usr/bin/readlink: illegal option -- f

---

Hello. macOS Big Sur does not support readlink -f. Recent changes in https://github.com/pyenv/pyenv-virtualenv/commit/c4de2555b7343c95a3380dece3098eaf3baa4e73 have fixed build errors for newer versions of macOS, but Big Sur cannot handle this. Is Big Sur still a supporterd OS?

Relevant Homebrew CI run with the failures: https://github.com/Homebrew/homebrew-core/actions/runs/3844517040/jobs/6561365032

[ttllttttlltt]

Maybe use a workaround, which works for me on Big Sur:

brew install coreutils
export PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH"
alias readlink=greadlink