feat(slam): add cartographer_ros

cartographer/.travis.yml

@@ -0,0 +1,36 @@
+# Copyright 2016 The Cartographer Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+sudo: required
+services: docker
+
+# Cache intermediate Docker layers. For a description of how this works, see:
+# https://giorgos.sealabs.net/docker-cache-on-travis-and-docker-112.html
+cache:
+  directories:
+    - /home/travis/docker/
+
+env:
+  - LSB_RELEASE=bionic DOCKER_CACHE_FILE=/home/travis/docker/bionic-cache.tar.gz CC=gcc CXX=g++
+  - LSB_RELEASE=focal DOCKER_CACHE_FILE=/home/travis/docker/focal-cache.tar.gz CC=gcc CXX=g++
+  - LSB_RELEASE=stretch DOCKER_CACHE_FILE=/home/travis/docker/stretch-cache.tar.gz CC=gcc CXX=g++
+  - LSB_RELEASE=buster DOCKER_CACHE_FILE=/home/travis/docker/buster-cache.tar.gz CC=gcc CXX=g++
+
+before_install: scripts/load_docker_cache.sh
+
+install: true
+script:
+  - docker build ${TRAVIS_BUILD_DIR} -t cartographer:${LSB_RELEASE} -f Dockerfile.${LSB_RELEASE}
+      --build-arg cc=$CC --build-arg cxx=$CXX
+  - scripts/save_docker_cache.sh