From d0779fc8fb90fb7268d0ee858086e92bcd316787 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mislav=20Marohni=C4=87?= <mislav.marohnic@gmail.com>
Date: Fri, 9 Sep 2016 10:29:12 +0200
Subject: [PATCH] Expand literal tilde in PATH

The literal tilde in a PATH entry (e.g. `~/.rbenv/shims`) doesn't seem
to be supported by system `which` utility, but *does* seem to be
supported by `command -v` (used in `rbenv-which`) and `type -p`.

Therefore, we must strip away `~/.rbenv/shims` from PATH when looking up
executables for system Ruby, lest we risk infinite loop. We do so by
substituting any occurence of `~` in PATH with the value of `HOME`.
---
 libexec/rbenv-which | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libexec/rbenv-which b/libexec/rbenv-which
index c7c0301..78db1c0 100755
--- a/libexec/rbenv-which
+++ b/libexec/rbenv-which
@@ -18,7 +18,7 @@ fi
 remove_from_path() {
   local path_to_remove="$1"
   local path_before
-  local result=":$PATH:"
+  local result=":${PATH//\~/$HOME}:"
   while [ "$path_before" != "$result" ]; do
     path_before="$result"
     result="${result//:$path_to_remove:/:}"