script: add /apollo/meta topic to record version info.

scripts/record_bag.sh

@@ -49,6 +49,16 @@ function start() {
   cd "${BAG_DIR}"
   echo "Recording bag to: $(pwd)"
 
+  # record some meta info into bag
+  if [ -e /apollo/meta.ini ]; then
+      META_STR=`cat /apollo/meta.ini | sed 's/\[//g' | sed 's/\]//g' | sed 's/:/ /g' | tr '\n' ' '`
+      rostopic pub -1 -l /apollo/meta std_msgs/String "$META_STR" &
+  else
+      META_STR=`git rev-parse HEAD`
+      META_STR="git commit $META_STR"
+      rostopic pub -1 -l /apollo/meta std_msgs/String "$META_STR" &
+  fi
+
   # Start recording.
   LOG="/tmp/apollo_record.out"
   NUM_PROCESSES="$(pgrep -c -f "rosbag record")"
@@ -69,6 +79,7 @@ function start() {
         /apollo/canbus/chassis_detail \
         /apollo/control \
         /apollo/control/pad \
+        /apollo/meta \
         /apollo/perception/obstacles \
         /apollo/perception/traffic_light \
         /apollo/planning \