Revert "Adds Docker caching to Travis." (#78)

.travis.yml

@@ -14,18 +14,5 @@
 
 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:
-  global:
-    - DOCKER_CACHE_FILE=/home/travis/docker/cache.tar.gz
-before_install: scripts/load_docker_cache.sh
-
 install: true
-script:
-  - docker build ${TRAVIS_BUILD_DIR} -t cartographer
-  - scripts/save_docker_cache.sh
+script: docker build ${TRAVIS_BUILD_DIR} -t cartographer

Dockerfile

@@ -13,9 +13,7 @@
 # limitations under the License.
 
 FROM ubuntu:trusty
-COPY scripts/install_debs.sh cartographer/scripts/
-RUN cartographer/scripts/install_debs.sh && rm -rf /var/lib/apt/lists/*
-COPY scripts/install_ceres.sh cartographer/scripts/
-RUN cartographer/scripts/install_ceres.sh && rm -rf ceres-solver
 COPY . cartographer
+RUN cartographer/scripts/install_debs.sh && rm -rf /var/lib/apt/lists/*
+RUN cartographer/scripts/install_ceres.sh && rm -rf ceres-solver
 RUN cartographer/scripts/install_cartographer.sh && rm -rf cartographer

scripts/load_docker_cache.sh

@@ -1,25 +0,0 @@
-#!/bin/bash
-
-# 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.
-
-# Cache intermediate Docker layers. For a description of how this works, see:
-# https://giorgos.sealabs.net/docker-cache-on-travis-and-docker-112.html
-
-set -o errexit
-set -o verbose
-
-if [ -f ${DOCKER_CACHE_FILE} ]; then
-  gunzip -c ${DOCKER_CACHE_FILE} | docker load;
-fi

scripts/save_docker_cache.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-
-# 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.
-
-# Cache intermediate Docker layers. For a description of how this works, see:
-# https://giorgos.sealabs.net/docker-cache-on-travis-and-docker-112.html
-
-set -o errexit
-set -o verbose
-
-if [[ ${TRAVIS_BRANCH} == "master" ]] &&
-    [[ ${TRAVIS_PULL_REQUEST} == "false" ]]; then
-  mkdir -p $(dirname ${DOCKER_CACHE_FILE});
-  docker save $(docker history -q ${DOCKER_REPOSITORY}:${TRAVIS_COMMIT} |
-      grep -v '<missing>') | gzip > ${DOCKER_CACHE_FILE};
-fi