From 2a65d7b55b0a2a9ece51d0d60044169ea8f12083 Mon Sep 17 00:00:00 2001
From: Hugues Delorme <delorme.hugues@fougue.pro>
Date: Wed, 9 Sep 2015 17:13:12 +0200
Subject: [PATCH] cmake: add coveralls support

---
 .travis.yml          | 24 ++++++++++++++++++------
 CMakeLists.txt       | 13 ++++++++-----
 src/CMakeLists.txt   |  7 +++++++
 tests/CMakeLists.txt |  7 +++++++
 4 files changed, 40 insertions(+), 11 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index c019434..764bdaf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,12 +10,20 @@ compiler:
   
 env:
   matrix:
-    - TRAVIS_BUILD_TYPE=Debug    TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=ON
-    - TRAVIS_BUILD_TYPE=Debug    TRAVIS_SHARED_LIBS=ON   TRAVIS_STRICT_C90=ON   TRAVIS_MAKE_CHECK=ON
-    - TRAVIS_BUILD_TYPE=Release  TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=OFF
+    - TRAVIS_BUILD_TYPE=Debug    TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=ON
+    - TRAVIS_BUILD_TYPE=Debug    TRAVIS_SHARED_LIBS=ON   TRAVIS_STRICT_C90=ON   TRAVIS_MAKE_CHECK=ON  TRAVIS_COVERALLS=OFF
+    - TRAVIS_BUILD_TYPE=Release  TRAVIS_SHARED_LIBS=OFF  TRAVIS_STRICT_C90=OFF  TRAVIS_MAKE_CHECK=OFF TRAVIS_COVERALLS=OFF
 
 script:
   - cmake --version
+  - if [ "${TRAVIS_COVERALLS}" = "ON" ] \
+       && [ "${TRAVIS_OS_NAME}" = "linux" ] \
+       && [ "${CC}" = "gcc" ];
+    then
+        pip install cpp-coveralls;
+    else
+        export TRAVIS_COVERALLS=OFF;
+    fi
   - mkdir build && cd build
   - cmake .. -G "Unix Makefiles" 
              -DCMAKE_DEBUG_POSTFIX=_d 
@@ -23,10 +31,14 @@ script:
              -DGMIO_BUILD_SHARED_LIBS=$TRAVIS_SHARED_LIBS 
              -DGMIO_BUILD_STRICT_C90=$TRAVIS_STRICT_C90
              -DGMIO_BUILD_TESTS_FAKE_SUPPORT=ON
+             -DGMIO_BUILD_TESTS_COVERALLS=ON
              -DCMAKE_INSTALL_PREFIX=../install
   - make -j4
-  -  if [ "${TRAVIS_MAKE_CHECK}" = "ON" ]; then
-         make VERBOSE=1 check;
-     fi
+  - if [ "${TRAVIS_MAKE_CHECK}" = "ON" ]; then
+        make check;
+    fi
   - make install
+  - if [ "${TRAVIS_COVERALLS}" = "ON" ]; then
+        coveralls --gcov-options '\-lp';
+    fi
   
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b798143..b358bb3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,6 +28,11 @@ set(GMIO_VERSION_PATCH 0)
 set(GMIO_VERSION
     ${GMIO_VERSION_MAJOR}.${GMIO_VERSION_MINOR}.${GMIO_VERSION_PATCH})
 
+# Detect Clang
+if (CMAKE_C_COMPILER MATCHES ".*clang")
+    set(CMAKE_COMPILER_IS_CLANG 1)
+endif ()
+
 # Options
 option(GMIO_BUILD_STRICT_C90  "Build gmio library(and tests) with strict conformance to C90 standard" OFF)
 option(GMIO_BUILD_SHARED_LIBS "Build gmio as a shared library (DLL)" OFF)
@@ -39,11 +44,9 @@ cmake_dependent_option(
     GMIO_BUILD_BENCHMARK_OPENCASCADE "Build benchmark for OpenCascade" ON
     "GMIO_BUILD_BENCHMARKS" OFF)
 option(GMIO_BUILD_TESTS_FAKE_SUPPORT  "Build tests/fake_support target" OFF)
-
-# Detect Clang
-if (CMAKE_C_COMPILER MATCHES ".*clang")
-    set(CMAKE_COMPILER_IS_CLANG 1)
-endif ()
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
+    option(GMIO_BUILD_TESTS_COVERAGE "Instrument testing code with code coverage" OFF)
+endif()
 
 # Find bit size of the target architecture
 math(EXPR GMIO_TARGET_ARCH_BIT_SIZE "8 * ${CMAKE_SIZEOF_VOID_P}")
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a311ef6..7a222b0 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -13,6 +13,13 @@
 ## "http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html".
 #############################################################################
 
+if(GMIO_BUILD_TESTS_COVERAGE)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -Wall -W -fprofile-arcs -ftest-coverage")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -Wall -W -fprofile-arcs -ftest-coverage")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
+    link_libraries(gcov)
+endif()
+
 # Add core source files
 file(GLOB  GMIO_SRC_FILES  gmio_core/*  gmio_core/internal/*)
 set(GMIO_SRC_FILES  ${GMIO_SRC_FILES})
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index dad4486..dc62a3a 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -23,6 +23,13 @@ add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND})
 
 include_directories(${CMAKE_BINARY_DIR}/src/gmio_core) # For generated cmake headers
 
+if(GMIO_BUILD_TESTS_COVERAGE)
+    set(CMAKE_CXX_FLAGS "-g -O0 -Wall -W -fprofile-arcs -ftest-coverage")
+    set(CMAKE_C_FLAGS "-g -O0 -Wall -W -fprofile-arcs -ftest-coverage")
+    set(CMAKE_EXE_LINKER_FLAGS "-fprofile-arcs -ftest-coverage")
+    link_libraries(gcov)
+endif()
+
 # test_internal
 add_executable(
     test_internal