Support melodic test

Author: k-okada

.travis.yml

@@ -13,6 +13,10 @@ env:
   - ROS_DISTRO=kinetic ROSWS=wstool BUILDER=catkin    USE_DEB=true  ROS_REPOSITORY_PATH=http://packages.ros.org/ros-shadow-fixed/ubuntu
   - ROS_DISTRO=kinetic ROSWS=wstool BUILDER=catkin    USE_DEB=false ROS_REPOSITORY_PATH=http://packages.ros.org/ros/ubuntu
   - ROS_DISTRO=kinetic TEST_TYPE=work_with_315_1_10
+  - ROS_DISTRO=melodic ROSWS=wstool BUILDER=catkin    USE_DEB=true  ROS_REPOSITORY_PATH=http://packages.ros.org/ros/ubuntu
+  - ROS_DISTRO=melodic ROSWS=wstool BUILDER=catkin    USE_DEB=true  ROS_REPOSITORY_PATH=http://packages.ros.org/ros-shadow-fixed/ubuntu
+  - ROS_DISTRO=melodic ROSWS=wstool BUILDER=catkin    USE_DEB=false ROS_REPOSITORY_PATH=http://packages.ros.org/ros/ubuntu
+  - ROS_DISTRO=melodic TEST_TYPE=work_with_315_1_10
 matrix:
   allow_failures:
   - env: ROS_DISTRO=kinetic ROSWS=wstool BUILDER=catkin    USE_DEB=true  ROS_REPOSITORY_PATH=http://packages.ros.org/ros/ubuntu
@@ -24,7 +28,7 @@ notifications:
     on_success: always #[always|never|change] # default: change
     on_failure: always #[always|never|change] # default: always
 before_install: # Use this to prepare the system to install prerequisites or dependencies
-  - case $ROS_DISTRO in "hydro") export DISTRO=precise;; "indigo") export DISTRO=trusty;; "kinetic") export DISTRO=xenial;; esac;
+  - case $ROS_DISTRO in "hydro") export DISTRO=precise;; "indigo") export DISTRO=trusty;; "kinetic") export DISTRO=xenial;; "melodic") export DISTRO=bionic;; "noetic") export DISTRO=focal;; esac;
   - export DOCKER_IMAGE=ubuntu:$DISTRO
   - export CI_SOURCE_PATH=$(pwd)
   - export REPOSITORY_NAME=${PWD##*/}