Factor out commands implemented via the REST interface

weaver/weave

@@ -68,6 +68,26 @@ setup_masquerading() {
     add_nat_rule "POSTROUTING -s $IPADDR ! -o $BRIDGE -j MASQUERADE"
 }
 
+rest_command() {
+	RESTCOMMAND=$1
+    if ! DOCKERIP=$(docker inspect --format='{{ .NetworkSettings.IPAddress }}' weave 2>/dev/null) ; then
+        echo "Weave is not running." >&2
+        exit 1
+    fi
+    if [ -z "$DOCKERIP" ] ; then
+        echo "Weave is not running." >&2
+        exit 1
+    fi
+    if command_exists wget ; then
+        wget -O - -q $DOCKERIP:6784/$RESTCOMMAND
+    elif command_exists curl ; then
+        curl $DOCKERIP:6784/$RESTCOMMAND
+    else
+        echo "Cannot find wget or curl. Install one of them for 'weave $RESTCOMMAND' to function." >&2
+        exit 1
+    fi
+}
+
 case "$COMMAND" in
     launch)
         [ $# -gt 0 ] || usage
@@ -104,22 +124,7 @@ case "$COMMAND" in
         IFACE=eth0
         ;;
     status)
-        if ! DOCKERIP=$(docker inspect --format='{{ .NetworkSettings.IPAddress }}' weave 2>/dev/null) ; then
-            echo "Weave is not running." >&2
-            exit 1
-        fi
-        if [ -z "$DOCKERIP" ] ; then
-            echo "Weave is not running." >&2
-            exit 1
-        fi
-        if command_exists wget ; then
-            wget -O - -q $DOCKERIP:6784/status
-        elif command_exists curl ; then
-            curl $DOCKERIP:6784/status
-        else
-            echo "Cannot find wget or curl. Install one of them for 'weave status' to function." >&2
-            exit 1
-        fi
+		rest_command status
         exit 0
         ;;
     run)