Add travis-ci

.ci/gtest.sh

+#!/usr/bin/env bash
+
+set -evx
+
+sudo apt-get -qq update
+sudo apt-get install -y libgtest-dev
+wget https://github.com/google/googletest/archive/release-1.8.0.tar.gz
+tar xf release-1.8.0.tar.gz
+cd googletest-release-1.8.0
+
+cmake -DBUILD_SHARED_LIBS=ON .
+make
+sudo cp -a googletest/include/gtest /usr/include
+sudo cp -a googlemock/gtest/*.so /usr/lib/
+
+sudo ldconfig -v | grep gtest
+
+cd $TRAVIS_BUILD_DIR
+

.travis.yml

+---
+
+language: cpp
+sudo: required
+dist: trusty
+
+services:
+  - docker
+
+notifications:
+  email: false
+
+matrix:
+  include:
+    - os: osx
+      osx_image: xcode8
+      compiler: clang
+    - os: linux
+      compiler: gcc
+      env:
+        - CXX_VERSION=g++-6
+      addons:
+        apt:
+          sources:
+            - "ubuntu-toolchain-r-test"
+          packages:
+            - "g++-6"
+    - os: linux
+      compiler: gcc
+      env:
+        - CXX_VERSION=g++-7
+      addons:
+        apt:
+          sources:
+            - "ubuntu-toolchain-r-test"
+          packages:
+            - "g++-7"
+    - os: linux
+      compiler: clang
+      env:
+        - CXX_VERSION=clang++-5.0
+        - LINT=ON
+      addons:
+        apt:
+          sources:
+            - "ubuntu-toolchain-r-test"
+            - "llvm-toolchain-trusty-5.0"
+          packages:
+            - "clang++-5.0"
+            - "clang-5.0"
+            - "g++-7"
+            - "clang-format"
+
+install:
+  - if [ $TRAVIS_OS_NAME == linux ]; then ./.ci/gtest.sh; fi
+  - if [ $TRAVIS_OS_NAME == linux ]; then sudo add-apt-repository -y ppa:george-edison55/cmake-3.x; fi
+  - if [ $TRAVIS_OS_NAME == linux ]; then sudo apt-get update -qq; fi
+  - if [ $TRAVIS_OS_NAME == linux ]; then sudo apt-get install -qq -y cmake; fi
+
+script:
+  - if [[ "${CXX_VERSION}" != "" ]]; then export CXX=${CXX_VERSION}; fi
+
+  - $CXX --version
+  - cmake --version
+
+  # Build library, examples & tests
+  - cmake -H. -Bbuild
+  - cmake --build build
+
+  # Unit & Integration tests
+  - make synapse
+  - make test
+  - make stop-synapse
+
+  # Linting
+  - if [ $LINT == ON ]; then make lint; fi

Makefile

+FILES=`find src tests examples -type f -type f \( -iname "*.cpp" -o -iname "*.hpp" \)`
+
 debug:
 	@cmake -GNinja -H. -Bbuild -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl
 	@cmake --build build
@@ -30,5 +32,8 @@ stop-synapse:
 	@rm -rf ./data/*
 	@docker rm -f synapse 2>&1>/dev/null
 
+lint:
+	@clang-format -i ${FILES} && git diff --exit-code
+
 clean:
 	rm -rf build