🎉 C project.

.gitignore

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+*~*
+*\#*
+build
+.cache

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.29)
+
+project(skopy)
+
+set(CMAKE_INSTALL_PREFIX /usr)
+set(CMAKE_EXPORT_COMPILE_COMMANDS On)
+
+add_subdirectory(tests)
+add_subdirectory(lib)
+add_subdirectory(cli)

Makefile

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+.PHONY: build tests install
+
+build:
+	cmake -B build
+	cmake --build build
+
+tests: build
+	build/tests/skopy-tests \
+		&& echo -e "\e[32m--- all tests passed ---\e[0m" \
+		|| echo -e "\e[31m--- some tests failed ---\e[0m"
+
+install: tests
+	sudo cmake --install build
+
+check:
+	@cppcheck --enable=all -q lib tests cli \
+		--suppress=missingIncludeSystem

cli/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.29)
+
+project(skopy-cli)
+
+add_executable(skopy
+    main.c
+)
+
+set_property(TARGET skopy PROPERTY C_STANDARD 99)
+add_dependencies(skopy skopy-lib)
+install(TARGETS skopy)
+
+target_link_libraries(skopy
+    PUBLIC skopy-lib
+)

cli/main.c

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+#include <stdio.h>
+
+int main()
+{
+    printf("Hello World!\n");
+    return 0;
+}

lib/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.29)
+
+project(skopy-lib)
+
+add_library(skopy-lib SHARED
+    src/commons.c
+)
+
+file(GLOB_RECURSE
+    includes
+    include/*.h
+)
+
+install(TARGETS skopy-lib)
+
+install(
+   FILES ${includes} 
+   DESTINATION "${CMAKE_INSTALL_PREFIX}/include/skopy"
+)
+
+set_property(TARGET skopy-lib PROPERTY C_STANDARD 99)
+
+target_include_directories(skopy-lib
+    PUBLIC ${CMAKE_SOURCE_DIR}/lib/include
+)
+
+target_compile_options(skopy-lib
+    PUBLIC -Wall -Wextra -g
+)

lib/include/commons.h

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+#ifndef SK_COMMONS_H
+#define SK_COMMONS_H
+
+
+#endif

lib/src/commons.c

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+#include "commons.h"

tests/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.29)
+
+project(skopy-tests)
+
+add_executable(skopy-tests
+    main.c
+)
+
+set_property(TARGET skopy-tests PROPERTY C_STANDARD 99)
+add_dependencies(skopy-tests skopy-lib)
+
+find_package(PkgConfig)
+pkg_check_modules(CUNIT cunit REQUIRED IMPORTED_TARGET)
+
+target_link_libraries(skopy-tests
+    PUBLIC skopy-lib
+    PRIVATE PkgConfig::CUNIT
+)

tests/main.c

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+#include <CUnit/CUnit.h>
+#include <CUnit/Basic.h>
+
+void test_trivial()
+{
+    CU_ASSERT(1 + 1 == 2);
+}
+
+int main()
+{
+    CU_initialize_registry();
+
+    CU_pSuite suite = CU_add_suite("First suite", 0, 0);
+    CU_add_test(suite, "Trivial", test_trivial);
+
+    CU_basic_set_mode(CU_BRM_VERBOSE);
+    CU_basic_run_tests();
+
+
+    int status = CU_get_number_of_failures();
+    CU_cleanup_registry();
+
+    return status;
+}