TMP / Improved build tools layout

tools/dev-mode.cmake

@@ -0,0 +1,54 @@
+if (DEV_MODE)
+    find_program(clang_tidy_EXECUTABLE NAMES clang-tidy-13 clang-tidy REQUIRED)
+    find_package(Python3 COMPONENTS Interpreter REQUIRED)
+
+    # Setup clang-tidy
+    list(APPEND clang_tidy_command "${clang_tidy_EXECUTABLE}"
+        "--warnings-as-errors=*"
+        "--use-color")
+
+    set_target_properties(progressia
+        PROPERTIES CXX_CLANG_TIDY "${clang_tidy_command}")
+
+    # Display the marker for pre-commit.py at build time
+    add_custom_target(clang_tidy_marker ALL
+        COMMAND ${CMAKE_COMMAND} -E echo
+        "Clang-tidy is enabled. This is a marker for pre-commit.py")
+
+    # Notify pre-commit.py about CMake settings
+    execute_process(COMMAND ${Python3_EXECUTABLE} ${tools}/pre-commit.py
+        set-build-info -- "${CMAKE_COMMAND}" "${CMAKE_BINARY_DIR}"
+        RESULT_VARIABLE set_build_info_RESULT)
+
+    if(${set_build_info_RESULT})
+        message(FATAL_ERROR "pre-commit.py set-build-info failed")
+    endif()
+
+    # Setup pre-commit git hook
+    if (IS_DIRECTORY "${CMAKE_SOURCE_DIR}/.git/hooks")
+        set(pre_commit_hook "${CMAKE_SOURCE_DIR}/.git/hooks/pre-commit")
+        if (NOT EXISTS "${pre_commit_hook}")
+            file(WRITE "${pre_commit_hook}"
+                "#!/bin/sh\n"
+                "# Progressia autogenerated pre-commit hook\n"
+                "# You may modify this hook freely "
+                "(just make sure the checks run)\n"
+                "/bin/env python3 ${CMAKE_SOURCE_DIR}/tools/pre-commit.py run")
+
+            if (${CMAKE_VERSION} VERSION_LESS "3.19.0")
+                if (${CMAKE_HOST_UNIX})
+                    execute_process(COMMAND chmod "+x" "${pre_commit_hook}"
+                        RESULT_VARIABLE chmod_RESULT)
+                    if (${chmod_RESULT})
+                        message(FATAL_ERROR "Could not make git pre-commit hook executable")
+                    endif()
+                endif()
+            else()
+                file(CHMOD "${pre_commit_hook}"
+                    PERMISSIONS OWNER_EXECUTE GROUP_EXECUTE WORLD_EXECUTE)
+            endif()
+        endif()
+        unset(pre_commit_hook)
+    endif()
+
+endif()