Add:Core:Adding a script to make shure navit is only started once on Linux

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@1766 ffa7fe5e-494d-0410-b361-a75ebd5db220

1 files changed, 81 insertions, 0 deletions

diff --git a/navit/startonce.sh b/navit/startonce.sh
new file mode 100755
index 00000000..4053a11b
--- /dev/null
+++ b/navit/startonce.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+# This script is part of navit, a navigation system.
+# It can be used to make shure that navit is only started
+# once. If navit is already running it will be brought to
+# the front.
+
+# Set this to a place where a pidfile should be stored.
+# Make shure you have write access...
+PIDFILE="/var/run/navit/navit.pid"
+
+# Set this to navit's executable.
+NAVIT="./navit"
+
+# Optional: Set this to an alternative configuration file
+#CONFIG="./navit.xml"
+
+############################################################
+### You should not need to edit anything below this line ###
+############################################################
+
+function check_wmctrl()
+{
+	which wmctrl > /dev/null
+	
+	if [ $? -ne 0 ] ; then
+		echo "I need the 'wmctrl' program. Exit."
+		exit 1
+	fi
+}
+
+function start_navit()
+{
+	if [ "x" != "x$CONFIG" ] ; then
+		$NAVIT -c $CONFIG &
+	else 
+		$NAVIT &
+	fi
+
+	pid=$!
+
+	echo -n "$pid" > $PIDFILE
+
+	if [ $? -eq 0 ] ; then
+		echo "Started navit with PID $pid."
+	else
+		kill $pid
+		echo "Could not create pidfile!"
+		exit 1
+	fi
+
+	# Waiting for navit to close...
+	wait $pid
+
+	rm $PIDFILE
+}
+
+function check_navit()
+{
+	if [ -f $PIDFILE ] ; then
+		pid=`cat $PIDFILE`
+		kill -0 $pid 2>/dev/null
+		if [ $? -eq 0 ] ; then
+			echo "Bringing Navit to front"
+
+			winid=`wmctrl -l -p | grep -e "^[^:blank:]*[:blank:]*[^:blank:]*[:blank:]*$pid[:blank:]*" | sed 's/ .*//'`
+			wmctrl -i -R $winid
+
+			exit 0
+		fi
+	fi
+}
+
+
+### Start of the main script ###
+
+check_wmctrl
+
+check_navit
+
+start_navit
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