Restore Coveralls.cmake
diff --git a/cmake/Coveralls.cmake b/cmake/Coveralls.cmake
new file mode 100644
index 0000000..d60adba
--- /dev/null
+++ b/cmake/Coveralls.cmake
@@ -0,0 +1,119 @@
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# Copyright (C) 2014 Joakim Söderberg <joakim.soderberg@gmail.com>
+#
+
+
+#
+# Param _COVERAGE_SRCS A list of source files that coverage should be collected for.
+# Param _COVERALLS_UPLOAD Upload the result to coveralls?
+#
+function(coveralls_setup _COVERAGE_SRCS _COVERALLS_UPLOAD)
+
+ if (ARGC GREATER 2)
+ set(_CMAKE_SCRIPT_PATH ${ARGN})
+ message("Coveralls: Using alternate CMake script dir: ${_CMAKE_SCRIPT_PATH}")
+ else()
+ set(_CMAKE_SCRIPT_PATH ${PROJECT_SOURCE_DIR}/cmake)
+ endif()
+
+ if (NOT EXISTS "${_CMAKE_SCRIPT_PATH}/CoverallsClear.cmake")
+ message(FATAL_ERROR "Coveralls: Missing ${_CMAKE_SCRIPT_PATH}/CoverallsClear.cmake")
+ endif()
+
+ if (NOT EXISTS "${_CMAKE_SCRIPT_PATH}/CoverallsGenerateGcov.cmake")
+ message(FATAL_ERROR "Coveralls: Missing ${_CMAKE_SCRIPT_PATH}/CoverallsGenerateGcov.cmake")
+ endif()
+
+ # When passing a CMake list to an external process, the list
+ # will be converted from the format "1;2;3" to "1 2 3".
+ # This means the script we're calling won't see it as a list
+ # of sources, but rather just one long path. We remedy this
+ # by replacing ";" with "*" and then reversing that in the script
+ # that we're calling.
+ # http://cmake.3232098.n2.nabble.com/Passing-a-CMake-list-quot-as-is-quot-to-a-custom-target-td6505681.html
+ set(COVERAGE_SRCS_TMP ${_COVERAGE_SRCS})
+ set(COVERAGE_SRCS "")
+ foreach (COVERAGE_SRC ${COVERAGE_SRCS_TMP})
+ set(COVERAGE_SRCS "${COVERAGE_SRCS}*${COVERAGE_SRC}")
+ endforeach()
+
+ #message("Coverage sources: ${COVERAGE_SRCS}")
+ set(COVERALLS_FILE ${PROJECT_BINARY_DIR}/coveralls.json)
+
+ add_custom_target(coveralls_generate
+
+ # Zero the coverage counters.
+ COMMAND ${CMAKE_COMMAND}
+ -P "${_CMAKE_SCRIPT_PATH}/CoverallsClear.cmake"
+
+ # Run regress tests.
+ COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure
+
+ # Generate Gcov and translate it into coveralls JSON.
+ # We do this by executing an external CMake script.
+ # (We don't want this to run at CMake generation time, but after compilation and everything has run).
+ COMMAND ${CMAKE_COMMAND}
+ -DCOVERAGE_SRCS="${COVERAGE_SRCS}" # TODO: This is passed like: "a b c", not "a;b;c"
+ -DCOVERALLS_OUTPUT_FILE="${COVERALLS_FILE}"
+ -DCOV_PATH="${PROJECT_BINARY_DIR}"
+ -DPROJECT_ROOT="${PROJECT_SOURCE_DIR}"
+ -P "${_CMAKE_SCRIPT_PATH}/CoverallsGenerateGcov.cmake"
+
+ WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+ COMMENT "Generating coveralls output..."
+ )
+
+ if (_COVERALLS_UPLOAD)
+ message("COVERALLS UPLOAD: ON")
+
+ find_program(CURL_EXECUTABLE curl)
+
+ if (NOT CURL_EXECUTABLE)
+ message(FATAL_ERROR "Coveralls: curl not found! Aborting")
+ endif()
+
+ add_custom_target(coveralls_upload
+ # Upload the JSON to coveralls.
+ COMMAND ${CURL_EXECUTABLE}
+ -S -F json_file=@${COVERALLS_FILE}
+ https://coveralls.io/api/v1/jobs
+
+ DEPENDS coveralls_generate
+
+ WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+ COMMENT "Uploading coveralls output...")
+
+ add_custom_target(coveralls DEPENDS coveralls_upload)
+ else()
+ message("COVERALLS UPLOAD: OFF")
+ add_custom_target(coveralls DEPENDS coveralls_generate)
+ endif()
+
+endfunction()
+
+macro(coveralls_turn_on_coverage)
+ if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
+ message(FATAL_ERROR "Coveralls: Code coverage results with an optimised (non-Debug) build may be misleading! Add -DCMAKE_BUILD_TYPE=Debug")
+ endif()
+
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+endmacro()
