From 69fee6855db6919bb1ec5126a9b5e7a47322b0f8 Mon Sep 17 00:00:00 2001
From: Yamashita Yuu <peek824545201@gmail.com>
Date: Sat, 27 Jun 2015 02:16:41 +0900
Subject: [PATCH] Show error message if the source version is not installed
 (#83)

---
 bin/pyenv-virtualenv | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bin/pyenv-virtualenv b/bin/pyenv-virtualenv
index c26277c..146e671 100755
--- a/bin/pyenv-virtualenv
+++ b/bin/pyenv-virtualenv
@@ -282,7 +282,10 @@ fi
 export PYENV_VERSION="${VERSION_NAME}"
 
 # Source version must exist before creating virtualenv.
-pyenv-prefix 1>/dev/null 2>&1 || usage 1
+if ! pyenv-prefix 1>/dev/null 2>&1; then
+  echo "pyenv-virtualenv: \`${PYENV_VERSION}' is not installed in pyenv." 1>&2
+  exit 1
+fi
 
 if [ -z "$TMPDIR" ]; then
   TMP="/tmp"