From 29008bc9638298151baeb9dca90e8780569c9b88 Mon Sep 17 00:00:00 2001
From: forest <forest.n.johnson@gmail.com>
Date: Fri, 29 Jan 2021 00:26:21 -0600
Subject: [PATCH] fix index out of range when parsing output from
 shell_scripts/get.sh

---
 capsulflask/virt_model.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/capsulflask/virt_model.py b/capsulflask/virt_model.py
index f414c0f..e2b413b 100644
--- a/capsulflask/virt_model.py
+++ b/capsulflask/virt_model.py
@@ -96,6 +96,9 @@ class ShellScriptVirtualization(VirtualizationInterface):
     completedProcess = run([join(current_app.root_path, 'shell_scripts/get.sh'), id], capture_output=True)
     self.validate_completed_process(completedProcess)
     lines = completedProcess.stdout.splitlines()
+    if len(lines) == 0:
+      return None
+
     ipaddr = lines[0].decode("utf-8")
 
     if not re.match(r"^([0-9]{1,3}\.){3}[0-9]{1,3}$", ipaddr):