add options.cmake project config file

common options used for every cmake project
prevent reame of standalone executable via cmake properties

.github/workflows/standalone.yml

@@ -30,5 +30,7 @@ jobs:
       - name: build
         run: cmake --build build -j4
 
-      - name: run
-        run: ./build/bin/Greeter
+      - name: test
+        run: |
+          cd build
+          ctest --build-config Debug --verbose

CMakeLists.txt

@@ -20,20 +20,7 @@ endif()
 
 # ---- Project settings ----
 
-option(BUILD_SHARED_LIBS "Create shared libraries if ON" YES)
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
-
-if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 17)
-  set(CMAKE_CXX_STANDARD_REQUIRED ON)
-  set(CMAKE_CXX_EXTENSIONS NO)
-endif()
-
-# Set default visibility to hidden for all targets
-set(CMAKE_CXX_VISIBILITY_PRESET hidden)
-set(CMAKE_VISIBILITY_INLINES_HIDDEN YES)
+include(cmake/options.cmake)
 
 # ---- Add dependencies via CPM ----
 # see https://github.com/cpm-cmake/CPM.cmake for more info
@@ -67,10 +54,11 @@ file(GLOB_RECURSE sources CONFIGURE_DEPENDS source/*.cpp)
 # Note: for header-only libraries change all PUBLIC flags to INTERFACE and create an interface
 # target! EITHER: add_library(Greeter INTERFACE) OR:
 add_library(Greeter ${headers} ${sources})
-set_target_properties(Greeter PROPERTIES SOVERSION 1 VERSION ${PROJECT_VERSION})
-
 set_target_properties(Greeter PROPERTIES CXX_STANDARD ${CMAKE_CXX_STANDARD})
 
+# for SameMajorVersion upgrade stategie
+set_target_properties(Greeter PROPERTIES SOVERSION 1 VERSION ${PROJECT_VERSION})
+
 # being a cross-platform target, we enforce standards conformance on MSVC:
 target_compile_options(Greeter PUBLIC "$<$<COMPILE_LANG_AND_ID:CXX,MSVC>:/permissive>")
 

GNUmakefile

@@ -1,6 +1,6 @@
 #
-# CURDIR=$(/bin/pwd)
-ROOT?=${CURDIR}/stagedir
+# Note: make var CURDIR:=$(/bin/pwd)
+ROOT?=$(CURDIR)/stagedir
 
 #XXX GENERATOR?="Unix Makefiles"
 GENERATOR?=Ninja
@@ -24,32 +24,35 @@ distclean: clean
 update:
 	wget -q -O cmake/CPM.cmake https://github.com/cpm-cmake/CPM.cmake/releases/latest/download/get_cpm.cmake
 
-lock: standalone all
+lock: all standalone doc
 	cmake --build build/all --target cpm-update-package-lock
 	cmake --build build/test --target cpm-update-package-lock
 	cmake --build build/install --target cpm-update-package-lock
 	cmake --build build/standalone --target cpm-update-package-lock
+	cmake --build build/documentation --target cpm-update-package-lock
 
 # install the library to stagedir
 install:
-	cmake -S . -B build/install -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DCMAKE_INSTALL_PREFIX=${ROOT} # --trace-expand
-	cmake --build build/install --target install
+	cmake -S . -B build/$@ -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DCMAKE_INSTALL_PREFIX=${ROOT} # --trace-expand
+	cmake --build build/$@ --target $@
 
 # test the library
 test: install
-	cmake -S test -B build/test -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DTEST_INSTALLED_VERSION=1
-	cmake --build build/test
-	cmake --build build/test --target test
+	cmake -S $@ -B build/$@ -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DTEST_INSTALLED_VERSION=1
+	cmake --build build/$@
+	cmake --build build/$@ --target $@
 
 # all together
 all: test
-	cmake -S all -B build/all -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DTEST_INSTALLED_VERSION=1 -DENABLE_TEST_COVERAGE=1
-	cmake --build build/all
-	cmake --build build/all --target test
-	cmake --build build/all --target check-format
+	cmake -S $@ -B build/$@ -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DTEST_INSTALLED_VERSION=1 -DENABLE_TEST_COVERAGE=1
+	cmake --build build/$@
+	cmake --build build/$@ --target test
+	cmake --build build/$@ --target check-format
 
-doc: all
-	cmake --build build/all --target GenerateDocs
+# GenerateDocs
+doc:
+	cmake -S documentation -B build/documentation -G "${GENERATOR}"
+	cmake --build build/documentation --target GenerateDocs
 
 format: distclean
 	find . -name CMakeLists.txt | xargs cmake-format -i
@@ -58,8 +61,8 @@ format: distclean
 	find . -name '*.h' | xargs clang-format -i
 
 standalone:
-	cmake -S standalone -B build/standalone -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DCMAKE_EXPORT_COMPILE_COMMANDS=1
-	cmake --build build/standalone --target all
+	cmake -S $@ -B build/$@ -G "${GENERATOR}" -DCMAKE_PREFIX_PATH=${ROOT} -DCMAKE_EXPORT_COMPILE_COMMANDS=1
+	cmake --build build/$@
 
 # check the library
 check: standalone

all/package-lock.cmake

@@ -1,19 +0,0 @@
-# CPM Package Lock This file should be committed to version control
-
-# Ccache.cmake
-CPMDeclarePackage(
-  Ccache.cmake
-  NAME Ccache.cmake
-  VERSION 1.2.1
-  GITHUB_REPOSITORY TheLartians/Ccache.cmake
-)
-# Format.cmake
-CPMDeclarePackage(
-  Format.cmake
-  NAME Format.cmake
-  VERSION 1.6
-  GITHUB_REPOSITORY TheLartians/Format.cmake
-  OPTIONS "FORMAT_CHECK_CMAKE ON"
-)
-# MCSS (unversioned) CPMDeclarePackage(MCSS NAME MCSS GIT_TAG
-# 42d4a9a48f31f5df6e246c948403b54b50574a2a DOWNLOAD_ONLY YES GITHUB_REPOSITORY mosra/m.css )

cmake/options.cmake

@@ -0,0 +1,50 @@
+# only activate options for top level project
+if(NOT PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
+  return()
+endif()
+
+option(BUILD_SHARED_LIBS "Create shared libraries" YES)
+
+# Set default visibility to hidden for all targets
+set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+set(CMAKE_VISIBILITY_INLINES_HIDDEN YES)
+
+# build the dynamic libraries and executables together at bin directory
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
+
+if(NOT DEFINED CMAKE_CXX_STANDARD)
+  option(CXX_STANDARD_REQUIRED "Require c++ standard" YES)
+  set(CMAKE_CXX_STANDARD 17)
+  set(CMAKE_CXX_EXTENSIONS NO)
+endif()
+
+# this reduce build time if using Nina generators
+option(CMAKE_DEPENDS_IN_PROJECT_ONLY "do NOT use system header files for dependency checking" YES)
+if(NOT MSVC)
+  if(CMAKE_DEPENDS_IN_PROJECT_ONLY)
+    set(CMAKE_DEPFILE_FLAGS_C
+        "-MMD"
+        CACHE STRING "dependency flag" FORCE
+    )
+    set(CMAKE_DEPFILE_FLAGS_CXX
+        "-MMD"
+        CACHE STRING "dependency flag" FORCE
+    )
+  else()
+    set(CMAKE_DEPFILE_FLAGS_C
+        "-MD"
+        CACHE STRING "dependency flag" FORCE
+    )
+    set(CMAKE_DEPFILE_FLAGS_CXX
+        "-MD"
+        CACHE STRING "dependency flag" FORCE
+    )
+  endif()
+endif()
+
+option(CMAKE_EXPORT_COMPILE_COMMANDS "support clang-tidy, cppcheck, ..." YES)
+if(CMAKE_EXPORT_COMPILE_COMMANDS)
+  set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
+endif()

cmake/tools.cmake

@@ -9,15 +9,7 @@ endif()
 include(${CMAKE_CURRENT_LIST_DIR}/CPM.cmake)
 CPMUsePackageLock(package-lock.cmake)
 
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
-
-if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 17)
-  set(CMAKE_CXX_STANDARD_REQUIRED ON)
-  set(CMAKE_CXX_EXTENSIONS NO)
-endif()
+include(${CMAKE_CURRENT_LIST_DIR}/options.cmake)
 
 # option: default not set
 set(USE_STATIC_ANALYZER

package-lock.cmake

@@ -1,9 +0,0 @@
-# CPM Package Lock This file should be committed to version control
-
-# PackageProject.cmake
-CPMDeclarePackage(
-  PackageProject.cmake
-  NAME PackageProject.cmake
-  VERSION 1.4.1
-  GITHUB_REPOSITORY TheLartians/PackageProject.cmake
-)

standalone/CMakeLists.txt

@@ -25,14 +25,14 @@ CPMAddPackage(NAME Greeter SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
 file(GLOB sources CONFIGURE_DEPENDS source/*.cpp)
 
 add_executable(GreeterStandalone ${sources})
-
-# TODO: why rename in this way? Seems only for CI with GitHub actions! CK
-set_target_properties(
-  GreeterStandalone PROPERTIES CXX_STANDARD ${CMAKE_CXX_STANDARD} OUTPUT_NAME "Greeter"
-)
+set_target_properties(GreeterStandalone PROPERTIES CXX_STANDARD ${CMAKE_CXX_STANDARD})
 
 # WORKAROUND missing ALIAS target error! CK
 if(NOT TARGET cxxopts::cxxopts)
   add_library(cxxopts::cxxopts ALIAS cxxopts)
 endif()
 target_link_libraries(GreeterStandalone Greeter::Greeter cxxopts::cxxopts)
+
+# ---- run the standalone executable ----
+enable_testing()
+add_test(NAME GreeterStandalone COMMAND GreeterStandalone)

standalone/package-lock.cmake

@@ -1,9 +0,0 @@
-# CPM Package Lock This file should be committed to version control
-
-# Ccache.cmake
-CPMDeclarePackage(
-  Ccache.cmake
-  NAME Ccache.cmake
-  VERSION 1.2.1
-  GITHUB_REPOSITORY TheLartians/Ccache.cmake
-)

test/CMakeLists.txt

@@ -61,7 +61,7 @@ endif()
 
 enable_testing()
 
-add_test(NAME greeterTests COMMAND GreeterTests)
+add_test(NAME greeterTests COMMAND GreeterTests -s false)
 
 # ---- code coverage ----
 

test/package-lock.cmake

@@ -1,17 +0,0 @@
-# CPM Package Lock This file should be committed to version control
-
-# Ccache.cmake
-CPMDeclarePackage(
-  Ccache.cmake
-  NAME Ccache.cmake
-  VERSION 1.2.1
-  GITHUB_REPOSITORY TheLartians/Ccache.cmake
-)
-# Format.cmake
-CPMDeclarePackage(
-  Format.cmake
-  NAME Format.cmake
-  VERSION 1.6
-  GITHUB_REPOSITORY TheLartians/Format.cmake
-  OPTIONS "FORMAT_CHECK_CMAKE ON"
-)