From c6ff093344a3823d8b07c90a6478942d44d0392e Mon Sep 17 00:00:00 2001
From: "Eric N. Vander Weele" <ericvw@gmail.com>
Date: Thu, 19 May 2022 12:03:51 -0400
Subject: [PATCH] Deduplicate shims in $PATH for the fish shell during
 initialization (#430)

When a fish login shell is invoked within an existing login shell, avoid
duplicating path to the shims by removing existing occurrences before
prepending.
---
 bin/pyenv-virtualenv-init | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bin/pyenv-virtualenv-init b/bin/pyenv-virtualenv-init
index 404ddde..1a60c53 100755
--- a/bin/pyenv-virtualenv-init
+++ b/bin/pyenv-virtualenv-init
@@ -86,6 +86,8 @@ fi
 case "$shell" in
 fish )
   cat <<EOS
+while set index (contains -i -- "${PYENV_VIRTUALENV_ROOT:-${PYENV_VIRTUALENV_INSTALL_PREFIX}}/shims" \$PATH)
+set -eg PATH[\$index]; end; set -e index
 set -gx PATH '${PYENV_VIRTUALENV_ROOT:-${PYENV_VIRTUALENV_INSTALL_PREFIX}}/shims' \$PATH;
 set -gx PYENV_VIRTUALENV_INIT 1;
 EOS