build: add cmake support

.dockerignore

@@ -0,0 +1,2 @@
+/_build
+/build

.github/workflows/ccpp.yml

@@ -0,0 +1,38 @@
+name: CMake
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: build examples and tests
+      run: rm -rf build || true && mkdir build && cd build && cmake .. -DLIBMBUS_BUILD_EXAMPLES=ON -DLIBMBUS_BUILD_TESTS=ON -DLIBMBUS_ENABLE_COVERAGE=ON && cmake --build . -j && cd ..
+
+    - name: generate test frames
+      run: ./test/generate-xml.sh test/test-frames build/bin/mbus_parse_hex
+
+    - name: install and run gcovr
+      run: sudo pip install gcovr && gcovr build/.
+
+  debian:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: build debian package
+      run: rm -rf build || true && mkdir build && cd build && cmake .. -DLIBMBUS_PACKAGE_DEB=ON && cpack .. && sudo dpkg -i *.deb && ls /usr/lib
+
+  doc:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: build doxygen documentation
+      run: sudo apt install -y doxygen
+
+    - name: build doxygen documentation
+      run: rm -rf build || true && mkdir build && cd build && cmake .. -DLIBMBUS_BUILD_DOCS=ON && cmake --build . --target doc
+

.gitignore

@@ -10,7 +10,6 @@ test/Makefile.in
 /compile
 config.guess
 config.sub
-config.h.in
 configure
 /depcomp
 /install-sh
@@ -72,3 +71,9 @@ test/test-frames/*.xml.new
 test/error-frames/*.xml.new
 test/unsupported-frames/*.xml.new
 
+/build/
+_build/
+
+# IDE
+/.vscode/
+CMakeLists.txt.user

CMakeLists.txt

@@ -0,0 +1,277 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(
+  libmbus
+  LANGUAGES CXX C
+  VERSION "0.9.0")
+
+if(CMAKE_BUILD_TYPE STREQUAL "")
+  message(STATUS "CMAKE_BUILD_TYPE empty setting to Debug")
+  set(CMAKE_BUILD_TYPE "Debug")
+endif()
+
+# ##############################################################################
+# default options -> changed with e.g. cd build && cmake ..
+# -DLIBMBUS_BUILD_TESTS=ON
+# ##############################################################################
+
+option(LIBMBUS_BUILD_EXAMPLES "build examples" OFF)
+option(LIBMBUS_BUILD_TESTS "build tests" OFF)
+option(LIBMBUS_ENABLE_COVERAGE "build with coverage support" OFF)
+option(LIBMBUS_RUN_CLANG_TIDY "use Clang-Tidy for static analysis" OFF)
+option(LIBMBUS_PACKAGE_DEB "build debian package" OFF)
+option(LIBMBUS_PACKAGE_RPM "build rpm package" OFF)
+option(LIBMBUS_BUILD_DOCS "build documentation" OFF)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_C_STANDARD 11)
+
+# Append our module directory to CMake
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR})
+
+# Set the output of the libraries and executables.
+set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
+set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)
+
+# ##############################################################################
+# static analysis
+# ##############################################################################
+
+if(LIBMBUS_RUN_CLANG_TIDY)
+  find_program(
+    CLANG_TIDY_EXE
+    NAMES "clang-tidy"
+    DOC "/usr/bin/clang-tidy")
+  if(NOT CLANG_TIDY_EXE)
+    message(WARNING "clang-tidy not found.")
+  else()
+    message(STATUS "clang-tidy found: ${CLANG_TIDY_EXE}")
+    set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}")
+  endif()
+endif(LIBMBUS_RUN_CLANG_TIDY)
+
+if(LIBMBUS_ENABLE_COVERAGE)
+  if(NOT CMAKE_BUILD_TYPE MATCHES "(Debug)|(RelWithDebInfo)")
+    message(WARNING "Code coverage results with an optimised (non-Debug) build may be misleading")
+  endif()
+
+  if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    # using Clang
+    message(STATUS "Not doing coverage...")
+  elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+    # using GCC
+    message(STATUS "Building with code coverage...")
+    set(CMAKE_BUILD_TYPE DEBUG)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -ggdb3 -O0 --coverage -fprofile-arcs -ftest-coverage")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -ggdb3 -O0 --coverage -fprofile-arcs -ftest-coverage ")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_CXX_FLAGS} --coverage -fprofile-arcs -ftest-coverage ")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_CXX_FLAGS} --coverage -fprofile-arcs -ftest-coverage ")
+    link_libraries(-lgcov)
+  endif()
+endif()
+
+include(CheckIncludeFile)
+
+check_include_file(dlfcn.h HAVE_DLFCN_H)
+check_include_file(inttypes.h HAVE_INTTYPES_H)
+check_include_file(memory.h HAVE_MEMORY_H)
+check_include_file(stdlib.h HAVE_STDINT_H)
+check_include_file(stdint.h HAVE_STDLIB_H)
+check_include_file(strings.h HAVE_STRINGS_H)
+check_include_file(string.h HAVE_STRING_H)
+check_include_file(sys/stat.h HAVE_SYS_STAT_H)
+check_include_file(sys/types.h HAVE_SYS_TYPES_H)
+check_include_file(unistd.h HAVE_UNISTD_H)
+
+# ##############################################################################
+# library
+# ##############################################################################
+
+set(PACKAGE_STRING "${PROJECT_NAME} ${PROJECT_VERSION}")
+
+set(PACKAGE_VERSION "${PROJECT_VERSION}")
+set(VERSION "${PROJECT_VERSION}")
+configure_file(${CMAKE_CURRENT_LIST_DIR}/mbus/config.h.in ${CMAKE_CURRENT_LIST_DIR}/config.h @ONLY)
+
+add_library(
+  ${PROJECT_NAME}
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-protocol.c
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-protocol.h
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-tcp.c
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-tcp.h
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus.c
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus.h
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-protocol-aux.c
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-protocol-aux.h
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-serial.c
+  ${CMAKE_CURRENT_LIST_DIR}/mbus/mbus-serial.h)
+target_include_directories(
+  ${PROJECT_NAME} PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}> $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
+                         $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+  target_link_libraries(${PROJECT_NAME} PRIVATE m)
+endif()
+if(NOT MSVC)
+  target_compile_options(${PROJECT_NAME} PRIVATE -Wall -Wextra -Wno-pedantic)
+endif()
+
+if(CLANG_TIDY_EXE)
+  set_target_properties(${PROJECT_NAME} PROPERTIES CXX_CLANG_TIDY "${DO_CLANG_TIDY}")
+endif()
+
+add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
+
+# ##############################################################################
+# examples
+# ##############################################################################
+
+if(LIBMBUS_BUILD_EXAMPLES)
+  message(STATUS "building examples")
+  add_subdirectory(bin)
+endif()
+
+# ##############################################################################
+# tests
+# ##############################################################################
+
+if(LIBMBUS_BUILD_TESTS)
+  message(STATUS "building tests")
+  enable_testing()
+  add_subdirectory(test)
+endif()
+
+# ##############################################################################
+# install
+# ##############################################################################
+
+include(GNUInstallDirs)
+include(CMakePackageConfigHelpers)
+
+set(INSTALL_PKGCONFIG_DIR
+    "${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig"
+    CACHE PATH "Installation directory for pkgconfig (.pc) files")
+set(INSTALL_INC_DIR
+    "${CMAKE_INSTALL_INCLUDEDIR}/mbus"
+    CACHE PATH "Installation directory for headers")
+set(INSTALL_LIB_DIR
+    "${CMAKE_INSTALL_LIBDIR}"
+    CACHE PATH "Installation directory for libraries")
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libmbus.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libmbus.pc @ONLY)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libmbus.pc DESTINATION "${INSTALL_PKGCONFIG_DIR}")
+
+set(LIBMBUS_CONFIG_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
+install(
+  TARGETS ${PROJECT_NAME}
+  EXPORT ${PROJECT_NAME}Targets
+  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT lib
+  ARCHIVE DESTINATION ${INSTALL_LIB_DIR} COMPONENT dev
+  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT lib)
+install(
+  EXPORT ${PROJECT_NAME}Targets
+  DESTINATION ${LIBMBUS_CONFIG_INSTALL_DIR}
+  NAMESPACE ${PROJECT_NAME}::
+  COMPONENT dev)
+
+configure_package_config_file(cmake/Config.cmake.in ${PROJECT_NAME}Config.cmake INSTALL_DESTINATION
+                              ${LIBMBUS_CONFIG_INSTALL_DIR})
+write_basic_package_version_file(${PROJECT_NAME}ConfigVersion.cmake COMPATIBILITY SameMajorVersion)
+install(
+  FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+        ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
+  DESTINATION ${LIBMBUS_CONFIG_INSTALL_DIR}
+  COMPONENT dev)
+
+install(
+  DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/mbus/
+  DESTINATION ${INSTALL_INC_DIR}
+  COMPONENT dev
+  FILES_MATCHING
+  PATTERN "*.h")
+
+# ##############################################################################
+# package
+# mkdir build ; cd build ; cmake .. -DLIBMBUS_PACKAGE_DEB=ON ; cpack ..
+# ##############################################################################
+
+include(InstallRequiredSystemLibraries)
+
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Open source M-bus (Meter-Bus) library.")
+set(CPACK_PACKAGE_DESCRIPTION
+    "libmbus is an open source library for the M-bus (Meter-Bus) protocol.
+The Meter-Bus is a standard for reading out meter data from electricity meters,
+heat meters, gas meters, etc. The M-bus standard deals with both the electrical
+signals on the M-Bus, and the protocol and data format used in transmissions
+on the M-Bus. The role of libmbus is to decode/encode M-bus data, and to handle
+the communication with M-Bus devices.
+
+For more information see http://www.rscada.se/libmbus")
+
+set(CPACK_PACKAGE_VENDOR "Raditex Control AB")
+set(CPACK_PACKAGE_CONTACT "Stefan Wahren <[email protected]>")
+set(CPACK_PACKAGE_HOMEPAGE_URL "https://github.com/rscada/libmbus/")
+set(CPACK_PACKAGE_VERSION_MAJOR "${PROJECT_VERSION_MAJOR}")
+set(CPACK_PACKAGE_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
+set(CPACK_PACKAGE_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
+set(CPACK_PACKAGE_RELEASE 1)
+set(CPACK_COMPONENTS_ALL devel libs)
+set(CPACK_RESOURCE_FILE_LICENSE ${PROJECT_SOURCE_DIR}/LICENSE)
+
+set(CPACK_PACKAGE_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
+set(CPACK_PACKAGE_FILE_NAME
+    "${CMAKE_PROJECT_NAME}_${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
+set(CPACK_COMPONENTS_ALL Libraries ApplicationData)
+
+if(LIBMBUS_PACKAGE_DEB)
+  set(CPACK_GENERATOR "DEB")
+  set(CPACK_DEBIAN_PACKAGE_MAINTAINER "Stefan Wahren <[email protected]>")
+  set(CPACK_DEBIAN_PACKAGE_SECTION "Development/Languages/C and C++")
+  set(CPACK_DEBIAN_ARCHITECTURE ${CMAKE_SYSTEM_PROCESSOR})
+  set(CPACK_DEBIAN_PACKAGE_VERSION
+      "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}-${CPACK_PACKAGE_RELEASE}"
+  )
+endif()
+
+if(LIBMBUS_PACKAGE_RPM)
+  set(CPACK_GENERATOR "RPM")
+  set(CPACK_RPM_PACKAGE_LICENSE "BSD")
+endif()
+
+include(CPack)
+
+# ##############################################################################
+# doc
+# mkdir build ; cd build ; cmake .. -DLIBMBUS_BUILD_DOCS=ON ; cmake --build . --target doc
+# ##############################################################################
+
+if(LIBMBUS_BUILD_DOCS)
+  message(STATUS "building with documentation")
+  # Generate targets for documentation
+  # check if Doxygen is installed
+  find_package(Doxygen)
+
+  if(Doxygen_FOUND)
+    # set input and output files
+    set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)
+    set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
+
+    # request to configure the file
+    configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
+
+    # note the option ALL which allows to build the docs together with the application
+    add_custom_target(
+      doc ALL
+      COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
+      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+      COMMENT "Generating API documentation with Doxygen"
+      VERBATIM)
+
+    message(STATUS "Setup up the Doxygen documention build")
+
+  else(Doxygen_FOUND)
+    message(WARNING "Doxygen need to be installed to generate the doxygen documentation")
+  endif(Doxygen_FOUND)
+endif()

Dockerfile.deb

@@ -0,0 +1,14 @@
+# docker build . -f Dockerfile.deb -t deb_builder
+
+FROM ubuntu
+
+RUN apt update -y && apt install -y cmake gcc g++ make
+COPY . /tmp
+RUN cd /tmp && \
+    mkdir build && \
+    cd build && \
+    cmake .. -DLIBMBUS_PACKAGE_DEB=ON && \
+    cpack .. && \
+    ls -al && \
+    dpkg -i *.deb
+

Dockerfile.rpm

@@ -0,0 +1,14 @@
+# docker build . -f Dockerfile.rpm -t rpm_builder
+
+FROM fedora
+
+RUN dnf install -y cmake gcc g++ make rpm-build
+COPY . /tmp
+RUN cd /tmp && \
+    mkdir build && \
+    cd build && \
+    cmake .. -DLIBMBUS_PACKAGE_RPM=ON && \
+    cpack .. && \
+    ls -al && \
+    rpm -i *.rpm
+