Support for codecov in .travis file (#82)

Signed-off-by: Jose Luis Rivero <[email protected]>

.travis.yml

@@ -1,21 +1,34 @@
-sudo: required
+os: linux
 dist: trusty
 language: cpp
+addons:
+  apt:
+    update: true
+    packages: lcov python3 cppcheck
 compiler:
   - gcc
   - clang
 env:
   - BUILD_TYPE=Debug
   - BUILD_TYPE=RelWithDebInfo
+  - BUILD_TYPE=Debug COVERAGE=true CXXFLAGS="--coverage"
+jobs:
+  exclude:
+    - compiler: clang
+      env: BUILD_TYPE=Debug COVERAGE=true CXXFLAGS="--coverage"
 script:
   - mkdir build
   - cd build
-  - cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_CXX_FLAGS=-Werror -DBUILD_TESTING=True ..
+  - cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_CXX_FLAGS="-Werror $CXXFLAGS" -DBUILD_TESTING=True ..
   - make
   - make test ARGS="-VV"
-before_install:
-  - sudo apt-get update
-  - sudo apt-get install python3 cppcheck
 after_script:
   - sudo make install
   - pkg-config --modversion console_bridge
+  - |
+    if [[ $COVERAGE == true ]]; then
+      lcov --capture --directory . --output-file coverage.info
+      lcov --remove coverage.info */test/* --output-file coverage.info
+      lcov --list coverage.info
+      bash <(curl -s https://codecov.io/bash) -f coverage.info || echo "Codecov did not collect coverage reports"
+    fi