From 7026e529c726648a30af0666088da541245d6422 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mislav=20Marohni=C4=87?= <mislav.marohnic@gmail.com>
Date: Tue, 27 Oct 2015 20:50:14 +0100
Subject: [PATCH] Fix `realpath` fallback in `rbenv hooks`

The symlinks weren't correctly resolved if they were pointing to a
single path component, such as `ln -s foo bar`.
---
 libexec/rbenv-hooks | 9 +++++----
 test/hooks.bats     | 8 +++++++-
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/libexec/rbenv-hooks b/libexec/rbenv-hooks
index 201c91da..6291e78a 100755
--- a/libexec/rbenv-hooks
+++ b/libexec/rbenv-hooks
@@ -35,16 +35,17 @@ resolve_link() {
 }
 
 realpath() {
-  local cwd="$(pwd)"
+  local cwd="$PWD"
   local path="$1"
+  local name
 
   while [ -n "$path" ]; do
-    cd "${path%/*}"
-    local name="${path##*/}"
+    name="${path##*/}"
+    [ "$name" = "$path" ] || cd "${path%/*}"
     path="$(resolve_link "$name" || true)"
   done
 
-  echo "$(pwd)/$name"
+  echo "${PWD}/$name"
   cd "$cwd"
 }
 fi
diff --git a/test/hooks.bats b/test/hooks.bats
index 0b53d430..99dc4bf0 100644
--- a/test/hooks.bats
+++ b/test/hooks.bats
@@ -59,7 +59,13 @@ OUT
   mkdir -p "$HOME"
   touch "${HOME}/hola.bash"
   ln -s "../../home/hola.bash" "${path}/exec/hello.bash"
+  touch "${path}/exec/bright.sh"
+  ln -s "bright.sh" "${path}/exec/world.bash"
 
   RBENV_HOOK_PATH="$path" run rbenv-hooks exec
-  assert_success "${HOME}/hola.bash"
+  assert_success
+  assert_output <<OUT
+${HOME}/hola.bash
+${RBENV_TEST_DIR}/rbenv.d/exec/bright.sh
+OUT
 }