Just update .travis.yml for melodic

.travis.sh

@@ -22,6 +22,12 @@ function travis_time_end {
     set -x
 }
 
+# Default configuration
+test "$NOT_TEST_INSTALL" = "" && export NOT_TEST_INSTALL=false
+
+# Mainly for https://github.com/ros-perception/perception_pcl/pull/197#issuecomment-386056906
+export DEBIAN_FRONTEND=noninteractive
+
 apt-get update -qq && apt-get install -qq -y -q wget sudo lsb-release gnupg # for docker
 
 # Setup ccache
@@ -36,7 +42,7 @@ sudo sh -c "echo \"deb http://packages.ros.org/ros-shadow-fixed/ubuntu `lsb_rele
 wget http://packages.ros.org/ros.key -O - | sudo apt-key add -
 sudo apt-get update -qq
 # Install ROS
-sudo apt-get install -qq -y python-catkin-pkg python-catkin-tools python-rosdep python-wstool ros-$ROS_DISTRO-catkin
+sudo -E apt-get install -qq -y python-catkin-pkg python-catkin-tools python-rosdep python-wstool ros-$ROS_DISTRO-catkin
 source /opt/ros/$ROS_DISTRO/setup.bash
 # Setup for rosdep
 sudo rosdep init
@@ -75,7 +81,9 @@ cd ~/catkin_ws
 catkin build -p1 -j1
 catkin run_tests -p1 -j1
 catkin_test_results --all build
-catkin clean -b --yes
-catkin config --install
-catkin build -p1 -j1
+if [ "$NOT_TEST_INSTALL" != "true" ]; then
+  catkin clean -b --yes
+  catkin config --install
+  catkin build -p1 -j1
+fi
 travis_time_end

.travis.yml

@@ -5,17 +5,22 @@ services:
   - docker
 cache: ccache
 env:
-  global:
-    - ROS_DISTRO=lunar
   matrix:
-    - DOCKER_IMAGE=debian:stretch
-    - DOCKER_IMAGE=ubuntu:xenial
+    # Test the target distro.
+    - ROS_DISTRO=melodic DOCKER_IMAGE=debian:stretch
+    - ROS_DISTRO=melodic DOCKER_IMAGE=ubuntu:artful
+    - ROS_DISTRO=melodic DOCKER_IMAGE=ubuntu:bionic
+    # To test backward compatibility for users who build from source.
+    - ROS_DISTRO=lunar DOCKER_IMAGE=debian:stretch NOT_TEST_INSTALL=true
+    - ROS_DISTRO=lunar DOCKER_IMAGE=ubuntu:xenial NOT_TEST_INSTALL=true
+    - ROS_DISTRO=kinetic DOCKER_IMAGE=debian:jessie NOT_TEST_INSTALL=true
+    - ROS_DISTRO=kinetic DOCKER_IMAGE=ubuntu:xenial NOT_TEST_INSTALL=true
+    - ROS_DISTRO=indigo DOCKER_IMAGE=ubuntu:trusty NOT_TEST_INSTALL=true
 # Install system dependencies, namely ROS.
 before_install:
   # Define some config vars.
   - export CI_SOURCE_PATH=$(pwd)
   - export REPOSITORY_NAME=${PWD##*/}
-  - export ROS_PARALLEL_JOBS='-j8 -l6'
 script:
   - echo "Testing branch $TRAVIS_BRANCH of $REPOSITORY_NAME"
   - docker run --rm -i -v $CI_SOURCE_PATH:$CI_SOURCE_PATH -v $HOME:$HOME -e "CI_SOURCE_PATH=$CI_SOURCE_PATH" -e "HOME=$HOME" -e "ROS_DISTRO=$ROS_DISTRO" -e "ROS_PARALLEL_JOBS=$ROS_PARALLEL_JOBS" -e "DOCKER_IMAGE=$DOCKER_IMAGE" -t $DOCKER_IMAGE sh -c "cd $CI_SOURCE_PATH; ./.travis.sh"

README.md

@@ -1,6 +1,6 @@
 # perception_pcl
 
-[![Build Status](https://travis-ci.org/ros-perception/perception_pcl.svg?branch=lunar-devel)](https://travis-ci.org/ros-perception/perception_pcl)
+[![Build Status](https://travis-ci.org/ros-perception/perception_pcl.svg?branch=melodic-devel)](https://travis-ci.org/ros-perception/perception_pcl)
 
 PCL (Point Cloud Library) ROS interface stack. PCL-ROS is the preferred
 bridge for 3D applications involving n-D Point Clouds and 3D geometry

pcl_conversions/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.6.3)
+cmake_minimum_required(VERSION 2.8)
 project(pcl_conversions)
 
 find_package(catkin REQUIRED COMPONENTS)
@@ -13,7 +13,12 @@ find_package(Eigen3 REQUIRED)
 # configure properly.  Here we remove those bogus entries so that downstream
 # consumers of this package succeed.
 if(NOT "${PCL_INCLUDE_DIRS}" STREQUAL "")
-  list(FILTER PCL_INCLUDE_DIRS EXCLUDE REGEX "/usr/include/.*-linux-gnu/freetype2")
+  foreach(item ${PCL_INCLUDE_DIRS})
+    string(REGEX MATCH "/usr/include/.*-linux-gnu/freetype2" item ${item})
+    if(item)
+      list(REMOVE_ITEM PCL_INCLUDE_DIRS ${item})
+    endif()
+  endforeach()
 endif()
 
 catkin_package(