feat(CTemplate): Move to CMake

This commit is contained in:
Jiří Štefka 2023-12-10 01:15:20 +01:00
parent 595837a4ac
commit 7223f1b99b
Signed by: jiriks74
GPG Key ID: 1D5E30D3DB2264DE
10 changed files with 308 additions and 121 deletions

74
C_Tempate/.gitignore vendored Normal file
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# Prerequisites
*.d
# Object files
*.o
*.ko
*.obj
*.elf
# Linker output
*.ilk
*.map
*.exp
# Precompiled Headers
*.gch
*.pch
# Libraries
*.lib
*.a
*.la
*.lo
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
*.exe
*.out
*.app
*.i*86
*.x86_64
*.hex
# Debug files
*.dSYM/
*.su
*.idb
*.pdb
# Kernel Module Compile Results
*.mod*
*.cmd
.tmp_versions/
modules.order
Module.symvers
Mkfile.old
dkms.conf
# Vscode
.vscode/
# CMake
CMakeLists.txt.user
CMakeCache.txt
CMakeFiles
CMakeScripts
Testing
Makefile
cmake_install.cmake
install_manifest.txt
compile_commands.json
.cache/
CTestTestfile.cmake
_deps
build/
lib/
bin/
*.swp

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{
"configurations": {
"Launch": {
"adapter": "vscode-cpptools",
"filetypes": [ "cpp", "c", "objc", "rust" ], // optional
"configuration": {
"request": "launch",
"program": "${workspaceRoot}/output/main",
//"args": [ "", "" ],
"cwd": "${workspaceRoot}/output",
//"environment": [ ... ],
"externalConsole": true,
"MIMode": "gdb"
}
},
"Attach": {
"adapter": "vscode-cpptools",
"filetypes": [ "cpp", "c", "objc", "rust" ], // optional
"configuration": {
"request": "attach",
"program": "${workspaceRoot}/output/main",
"MIMode": "gdb"
}
}
}
}

52
C_Tempate/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.14)
# Generate compile_commands.json
set(PROJECT_NAME cTemplate)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Turn on testing by default
option(BUILD_TESTING "Build tests" ON)
# Turn off coverage by default
option(ENABLE_COVERAGE "Enable test coverage" ON)
# Set C standard to C99
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
# Set the project name and version number. This allows for a user of your
project(${PROJECT_NAME} VERSION 0.1)
set(${PROJECT_NAME} 0.1)
# Function to prepend the subdirectory to source files in subdirectories
FUNCTION(PREPEND var )
SET(listVar "")
FOREACH(f ${${var}})
LIST(APPEND listVar "${CMAKE_CURRENT_SOURCE_DIR}/${f}")
ENDFOREACH(f)
SET(${var} "${listVar}" PARENT_SCOPE)
ENDFUNCTION(PREPEND)
# After a normal build, we can specify the location of various outputs of the
# build. We put executables and static libraries outside the build directory in
# bin/ and lib/, respectively.
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin")
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/lib")
# Include source code and headers. This calls the CMakeLists.txt in each
# subdirectory. These can define their own libraries, executables, etc. as targets,
# but here we define all exportable targets in the root CMakeLists.txt.
add_subdirectory(src)
add_subdirectory(include)
# enable unit testing via "make test" once the code has been compiled.
# TODO: Google Test
if(BUILD_TESTING)
message("Testing enabled")
enable_testing()
add_subdirectory(tests)
target_include_directories(tests PRIVATE include)
endif()
# Add PROJECT_NAME as an executable target.
add_executable(${PROJECT_NAME} ${SRC} ${INC})
target_include_directories(${PROJECT_NAME} PRIVATE include)

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#
# 'make' build executable file 'main'
# 'make clean' removes all .o and executable files
#
# define the C compiler to use CC = gcc
# define any compile-time flags
# CFLAGS := -std=c99 -Wall -Wextra -g -lm
CFLAGS := -std=c99 -Wall -Wextra -g
# define library paths in addition to /usr/lib
# if I wanted to include libraries not in /usr/lib I'd specify
# their path using -Lpath, something like:
LFLAGS =
# define output directory
OUTPUT := output
# define source directory
SRC := src
# define include directory
INCLUDE := include
# define lib directory
LIB := lib
ifeq ($(OS),Windows_NT)
MAIN := main.exe
SOURCEDIRS := $(SRC)
INCLUDEDIRS := $(INCLUDE)
LIBDIRS := $(LIB)
FIXPATH = $(subst /,\,$1)
RM := del /q /f
MD := mkdir
else
MAIN := main
SOURCEDIRS := $(shell find $(SRC) -type d)
INCLUDEDIRS := $(shell find $(INCLUDE) -type d)
LIBDIRS := $(shell find $(LIB) -type d)
FIXPATH = $1
RM = rm -f
MD := mkdir -p
endif
# define any directories containing header files other than /usr/include
INCLUDES := $(patsubst %,-I%, $(INCLUDEDIRS:%/=%))
# define the C libs
LIBS := $(patsubst %,-L%, $(LIBDIRS:%/=%))
# define the C source files
SOURCES := $(wildcard $(patsubst %,%/*.c, $(SOURCEDIRS)))
# define the C object files
OBJECTS := $(SOURCES:.c=.o)
#
# The following part of the makefile is generic; it can be used to
# build any executable just by changing the definitions above and by
# deleting dependencies appended to the file from 'make depend'
#
OUTPUTMAIN := $(call FIXPATH,$(OUTPUT)/$(MAIN))
all: $(OUTPUT) $(MAIN)
@echo Executing 'all' complete!
$(OUTPUT):
$(MD) $(OUTPUT)
$(MAIN): $(OBJECTS)
$(CC) $(INCLUDES) $(OBJECTS) $(LFLAGS) $(LIBS) -o $(OUTPUTMAIN) $(CFLAGS)
# this is a suffix replacement rule for building .o's from .c's
# it uses automatic variables $<: the name of the prerequisite of
# the rule(a .c file) and $@: the name of the target of the rule (a .o file)
# (see the gnu make manual section about automatic variables)
.c.o:
$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
.PHONY: clean
clean:
$(RM) $(OUTPUTMAIN)
$(RM) $(call FIXPATH,$(OBJECTS))
@echo Cleanup complete!
run: all
./$(OUTPUTMAIN)
@echo Executing 'run: all' complete!

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# Make an explicit list of all source files in IFJ23_INC. This is important
# because CMake is not a build system: it is a build system generator. Suppose
# you add a file foo.cpp to src/ after running cmake .. . If you set
# IFJ23_INC with `file(GLOB ... )`, this is not passed to the makefile; it
# doesn't know that foo.cpp exists and will not re-run cmake. Your
# collaborator's builds will fail and it will be unclear why. Whether you use
# file(GLOB ...) or not, you will need to re-run cmake, but with an explicit
# file list, you know beforehand why your code isn't compiling.
set(INC
)
# Form the full path to the source files...
PREPEND(INC)
# ... and pass the variable to the parent scope.
set(INC ${INC} PARENT_SCOPE)

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# Make an explicit list of all source files in `CMakeDemo_SRC`. This is important
# because CMake is not a build system: it is a build system generator. Suppose
# you add a file foo.cpp to src/ after running cmake .. . If you set
# `CMakeDemo_SRC` with `file(GLOB ... )`, this is not passed to the makefile;
# the makefile doesn't know that foo.cpp exists and will not re-run cmake. Your
# collaborator's builds will fail and it will be unclear why. Whether you use
# file(GLOB ...) or not, you will need to re-run cmake, but with an explicit
# file list, you know beforehand why your code isn't compiling.
set(SRC
main.c
)
# Form the full path to the source files...
PREPEND(SRC)
# ... and pass the variable to the parent scope.
set(SRC ${SRC} PARENT_SCOPE)

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#include <stdio.h>
#include <stdlib.h>
/**
* Copyright [2023] Jiří Štefka <jiriks74>
* Project: AdventOfCode
* @file main.c
* @brief Main entry point
* @author jiriks74
*/
#include <stdio.h>
/**
* @brief Main entry point
* @param argc Number of command-line arguments.
* @param argv Array of command-line arguments.
*/
#ifndef TESTING
int main(int argc, char *argv[])
#endif
#ifdef TESTING
int main_test(int argc, char *argv[])
#endif
{
printf("Hello world!\n");
return 0;
printf("Hello world!\n");
return 0;
}

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set(PROJECT_NAME ${PROJECT_NAME} PARENT_SCOPE )
# GoogleTest requires at least C++14
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Get GoogleTest
include(FetchContent)
FetchContent_Declare(
googletest
URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
)
# For Windows: Prevent overriding the parent project's compiler/linker settings
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(googletest)
add_subdirectory(src)
add_executable(tests ${TESTS})
# Link test executable against gtest & gtest_main
target_link_libraries(
tests
GTest::gtest_main
)
target_include_directories(tests PRIVATE
${CMAKE_SOURCE_DIR}/src
)
# Discover tests
include(GoogleTest)
gtest_discover_tests(tests)
add_dependencies(tests ${PROJECT_NAME})
# The following section is inspired by https://github.com/cmake-modules/lcov
if(ENABLE_COVERAGE)
message("Test coverage enabled")
# set(exclude_dir "*/tests/* */_deps/* /usr/include/c++/11/**/* /usr/include/c++/**/*")
# set(exclude_dir "*/tests/* */_deps/* /usr/include/c++/11/tuple /usr/include/c++/11/**/*")
# Check for lcov, gcov and genhtml
find_program(GCOV gcov)
if (NOT GCOV)
message(WARNING "gcov not found")
endif()
find_program(LCOV lcov)
if (NOT LCOV)
message(WARNING "lcov not found")
endif()
find_program(GENHTML genhtml)
if (NOT GENHTML)
message(WARNING "genhtml not found")
endif()
if (GCOV AND LCOV AND GENHTML)
# Set C compiler flags
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --coverage -fprofile-arcs -ftest-coverage")
# Set C++ compiler flags
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --coverage -fprofile-arcs -ftest-coverage")
set(covname cov.info)
add_custom_target(coverage DEPENDS ${covname})
add_dependencies(coverage tests ${PROJECT_NAME})
add_custom_command(
OUTPUT ${covname}
COMMAND ${LCOV} -c -o ${covname} -d ${CMAKE_BINARY_DIR}/tests/CMakeFiles/tests.dir/ -b . --gcov-tool ${GCOV}
COMMAND ${LCOV} -r ${covname} -o ${covname} "*/tests/*" "*/_deps/**/*" "/usr/include/c++/**/*" "/usr/include/c++/11/**/*"
COMMAND ${LCOV} -l ${covname}
COMMAND ${GENHTML} ${covname} -output coverage
COMMAND ${LCOV} -l ${covname} 2>/dev/null | grep Total | sed 's/|//g' | sed 's/Total://g' | awk '{print $1}' | sed s/%//g > coverage/total
)
set_directory_properties(PROPERTIES
ADDITIONAL_CLEAN_FILES ${covname}
)
set_directory_properties(PROPERTIES
ADDITIONAL_CLEAN_FILES coverage/
)
else()
message(WARNING "Cannot enable coverage. Missing the required tools")
endif()
endif()

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# Make an explicit list of all source files in `IFJ23_TESTS`. This is important
# because CMake is not a build system: it is a build system generator. Suppose
# you add a file foo.cpp to src/ after running cmake .. . If you set
# `IFJ23_TESTS` with `file(GLOB ... )`, this is not passed to the makefile;
# the makefile doesn't know that foo.cpp exists and will not re-run cmake. Your
# collaborator's builds will fail and it will be unclear why. Whether you use
# file(GLOB ...) or not, you will need to re-run cmake, but with an explicit
# file list, you know beforehand why your code isn't compiling.
set(TESTS
test.cpp
)
# Form the full path to the source files...
PREPEND(TESTS)
# ... and pass the variable to the parent scope.
set(TESTS ${TESTS} PARENT_SCOPE)

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#include <gtest/gtest.h>
#define TESTING
// Include the source file(s) to be tested.
#include "main.c"
// Create a test fixture class template - this will be like a "conlection" of
// tests. the : public ::testing::Test part is important! Add it to your fixture
// class.
class HelloTest : public ::testing::Test {
HelloTest() {}
~HelloTest() {}
void SetUp() {}
void TearDown() {}
};
// Add tests to the test fixture class.
// @param fixture_class_name The name of the test fixture class.
// @param test_name The name of the test.
TEST(HelloTest, BasicAssertions) {
// Execute the code to be tested.
// Expect two strings not to be equal.
EXPECT_STRNE("hello", "world");
// Expect equality.
EXPECT_EQ(7 * 6, 42);
}