From 6bfa3b3efb8fbc3c447fd5ca93b9f0c1f10563ad Mon Sep 17 00:00:00 2001
From: David Vazgenovich Shakaryan <dvshakaryan@gmail.com>
Date: Sat, 14 Jun 2014 22:47:17 -0700
Subject: Handle empty directory correctly.

---
 rpath.sh | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/rpath.sh b/rpath.sh
index 468df59..1f24420 100755
--- a/rpath.sh
+++ b/rpath.sh
@@ -42,8 +42,10 @@ _populate_dirs() {
 
     # Cannot handle paths containing a newline. Only an idiot would
     # encounter this in practice.
-    readarray -t dirs < \
-        <(printf '%s\0' "${RUBIES_PATH}"/* | sort -zV | xargs -0n1)
+    readarray -t dirs < <(shopt -s nullglob; \
+        printf '%s\0' "${RUBIES_PATH}"/* | sort -zV | xargs -0n1)
+
+    [[ -n "${dirs}" ]] || _die "Directory ${RUBIES_PATH} is empty."
 }
 
 _match() {
@@ -120,7 +122,7 @@ rpath_get() {
 }
 
 rpath_set() {
-    [[ -z "${1}" ]] && _die 'rpath set requires an argument.'
+    [[ -n "${1}" ]] || _die 'rpath set requires an argument.'
 
     _populate_dirs
 
-- 
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