Adding arm64 to the CI matrix (#93)

Co-authored-by: auv <vik748@hulkd>

Author: Vikrant Shah

.travis.yml

@@ -3,26 +3,35 @@ language: minimal
 services:
   - docker
 
-env:
-  - DOCKER_IMAGE=kinetic-perception-xenial SPINNAKER_VERSION=2.0.0.147 SPINNAKER_LINUX_ARCH=amd64
-  - DOCKER_IMAGE=melodic-perception-bionic SPINNAKER_VERSION=2.0.0.147 SPINNAKER_LINUX_ARCH=amd64
-  - DOCKER_IMAGE=kinetic-perception-xenial SPINNAKER_VERSION=1.24.0.60 SPINNAKER_LINUX_ARCH=amd64
-  - DOCKER_IMAGE=melodic-perception-bionic SPINNAKER_VERSION=1.24.0.60 SPINNAKER_LINUX_ARCH=amd64
+matrix:
+  include:
+   - arch: amd64
+     env : DOCKER_IMAGE=ros:kinetic-perception-xenial SPINNAKER_VERSION=2.0.0.147
+   - arch: amd64
+     env : DOCKER_IMAGE=ros:melodic-perception-bionic SPINNAKER_VERSION=2.0.0.147
+   - arch: amd64
+     env : DOCKER_IMAGE=ros:kinetic-perception-xenial SPINNAKER_VERSION=1.24.0.60
+   - arch: amd64
+     env : DOCKER_IMAGE=ros:melodic-perception-bionic SPINNAKER_VERSION=1.24.0.60
+   - arch: arm64
+     env : DOCKER_IMAGE=arm64v8/ros:kinetic-perception-xenial SPINNAKER_VERSION=2.0.0.147
+   - arch: arm64
+     env : DOCKER_IMAGE=arm64v8/ros:melodic-perception-bionic SPINNAKER_VERSION=2.0.0.147
 
 before_install:
-- docker pull ros:$DOCKER_IMAGE
+- docker pull $DOCKER_IMAGE
 
 script:
 - echo TRAVIS_BUILD_DIR is $TRAVIS_BUILD_DIR
 - >
   docker run
   -v $TRAVIS_BUILD_DIR:/ros_ws/src/spinnaker_sdk_camera_driver/
   --env SPINNAKER_VERSION=$SPINNAKER_VERSION
-  --env SPINNAKER_LINUX_ARCH=$SPINNAKER_LINUX_ARCH
-  ros:$DOCKER_IMAGE
+  --env SPINNAKER_LINUX_ARCH=$TRAVIS_CPU_ARCH
+  $DOCKER_IMAGE
   /bin/bash -c 
   "
   /ros_ws/src/spinnaker_sdk_camera_driver/download_and_install_spinnaker.sh;
   cd /ros_ws;
   catkin_make
-  "
+  "