Initial commit

bootstrap.sh

@@ -0,0 +1,89 @@
+#!/usr/bin/env bash
+#
+# Collection of reusable functions and variables
+# 
+
+TODAY=`date`
+HOSTNAME=`hostname`
+
+function debug
+{
+	if [ "${DEBUG}" = '1' ]; then
+		echo -e "DEBUG: $1"
+	fi
+}
+
+function err
+{
+	echo -e "FATAL ERROR: $1"
+	exit 1
+}
+
+function send_notification
+{
+	opt=""
+    if [ -n "$FROM" ]; then
+		local mailcmd=$(readlink -f `which mail`)
+		if [ "${mailcmd}" = "/usr/bin/bsd-mailx" ]; then
+			opt="-a 'From: ${FROM}'"
+		else		
+			opt="-r $FROM"
+		fi
+	fi
+
+	echo "Sending notification."
+	echo -e "$2" | mail $opt -s "$1" ${EMAIL}
+}
+
+function check_values
+{
+	
+	a_name=$1[@]
+	a_array=("${!a_name}")
+	if [ -z ${!a_name+x} ]; then
+		return
+	fi
+	
+	if [ ${a_array[$2]} == true ]; then
+		if [ "x${4}" = 'x' ]; then
+        	echo $3
+			exit 1
+		fi
+	fi
+        
+}
+
+function run_cmd {
+	debug "Executing: '$1 $2'"
+	if [ ! -e $LOG ]; then
+		touch $LOG
+	fi
+
+	## Check if command exists on system
+	if ! command -v $1; then
+		err "$1: command not found"
+	fi
+
+	## Check if debug is set and send command output to shell
+	## Some commands send animated text that can corrupt the log
+	if test -n "${DEBUG}"; then
+		debug "DEBUG variable set, redirecting command output to console" 
+		$1 $2
+		if [ $? -gt 0 ]; then
+            err "Failed running command '$1 $2'"
+		fi
+	else
+		$1 $2 2>> $LOG
+		# FIXME: This logic might need re-work?
+		if [ $? -gt 0 ]; then
+            echo "ERROR: Failed running command '$1 $2'."
+            echo "Displaying last 20 lines of ${LOG}..."
+            echo
+            tail $LOG
+            echo
+            exit 1
+        fi
+	fi
+
+	
+}