enable code coverage

.travis.yml

@@ -82,6 +82,9 @@ matrix:
      # OS X
      - os: osx
        compiler: clang
+       env: NODE_VERSION="5" COVERAGE=True PUBLISHABLE=false CXXFLAGS="--coverage" LDFLAGS="--coverage" # node abi 47
+     - os: osx
+       compiler: clang
        env: NODE_VERSION="5" # node abi 47
      - os: osx
        compiler: clang
@@ -110,6 +113,7 @@ env:
 
 before_install:
 - export PUBLISHABLE=${PUBLISHABLE:-true}
+- export COVERAGE=${COVERAGE:-false}
 - if [[ $(uname -s) == 'Linux' ]]; then
      export CXX="clang++-3.5";
      export CC="clang-3.5";
@@ -124,8 +128,16 @@ install:
 before_script:
 # get commit message
 - export COMMIT_MESSAGE=$(git show -s --format=%B $TRAVIS_COMMIT | tr -d '\n')
+- if [[ ${COVERAGE} == true ]]; then
+     if [[ $(uname -s) == 'Linux' ]]; then
+       PYTHONUSERBASE=$(pwd)/mason_packages/.link pip install --user cpp-coveralls;
+     else
+       PYTHONUSERBASE=$(pwd)/mason_packages/.link easy_install --user cpp-coveralls;
+     fi;
+   fi
 
 script:
 - if [[ "${NODE_VERSION}" ]]; then ./scripts/build_against_node.sh; fi;
+- if [[ ${COVERAGE} == true ]]; then ./mason_packages/.link/bin/cpp-coveralls --exclude node_modules --exclude tests --build-root build --gcov-options '\-lp' --exclude docs --exclude build/Release/obj/gen --exclude deps > /dev/null; fi;
 # disabled for now: need to port to sudo:false
 #- if [[ "${NODE_WEBKIT}" ]]; then ./scripts/build_against_node_webkit.sh; fi;