From 78f64aac6aa23781a597cb74d96d5446d28964dd Mon Sep 17 00:00:00 2001
From: Chris Koeritz <fred@gruntose.com>
Date: Sat, 30 Mar 2013 12:53:19 -0400
Subject: [PATCH] added a tiny error flag test function.

---
 scripts/core/functions.sh | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/scripts/core/functions.sh b/scripts/core/functions.sh
index ae3fd1c1..9674e3b3 100644
--- a/scripts/core/functions.sh
+++ b/scripts/core/functions.sh
@@ -32,7 +32,18 @@ if [ -z "$skip_all" ]; then
     if [ ! -d "$1" ]; then mkdir -p "$1"; fi
     cd "$1"
   }
-  
+
+  # checks the result of the last command that was run, and if it failed,
+  # then this complains and exits from bash.  the function parameters are
+  # used as the message to print as a complaint.
+  function check_result()
+  {
+    if [ $? -ne 0 ]; then
+      echo -e "failed on: $*"
+      exit 1
+    fi
+  }
+
   # locates a process given a search pattern to match in the process list.
   function psfind() {
     local PID_DUMP="$(mktemp "$TMP/zz_pidlist.XXXXXX")"
-- 
2.34.1