Make CMake the source of truth for versioning

cmake/HexConcat.cmake

@@ -3,4 +3,4 @@ set(HEX_PREFIX "\; device = mm-control\n\n")
 file(READ ${WORK_DIR}/firmware.hex HEX)
 file(WRITE ${WORK_DIR}/${HEX_NAME} ${HEX_PREFIX})
 file(APPEND ${WORK_DIR}/${HEX_NAME} ${HEX})
-message(status "Successfully built ${HEX_NAME}!")
+message(STATUS "Successfully built ${HEX_NAME}!")

cmake/ProjectVersion.cmake

@@ -13,13 +13,9 @@
 #
 # ~~~
 
-# PROJECT_VERSION
-file(READ "${CMAKE_SOURCE_DIR}/version.txt" content)
-string(REGEX MATCH "([0-9]+)\.([0-9]+)\.([0-9]+)" result "${content}")
-if(NOT result)
-  message(FATAL_ERROR "Failed to read version info from ${version_file}")
-endif()
-set(PROJECT_VERSION ${CMAKE_MATCH_0})
+include(${CMAKE_SOURCE_DIR}/version.cmake)
+
+set(PROJECT_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_REV}")
 
 function(resolve_version_variables)
   # BUILD_NUMBER

src/CMakeLists.txt

@@ -1,18 +1,19 @@
-target_sources(firmware PRIVATE application.cpp debug.cpp main.cpp registers.cpp version.c)
+target_sources(firmware PRIVATE application.cpp debug.cpp main.cpp registers.cpp version.hpp)
 
 target_link_libraries(firmware LUFA)
 
-set_property(
-  SOURCE src/version.c
-  APPEND
-  PROPERTY COMPILE_DEFINITIONS
-           FW_BUILD_NUMBER=${BUILD_NUMBER}
-           FW_VERSION_FULL=${PROJECT_VERSION_FULL}
-           FW_VERSION=${PROJECT_VERSION}
-           FW_VERSION_SUFFIX=${PROJECT_VERSION_SUFFIX}
-           FW_VERSION_SUFFIX_SHORT=${PROJECT_VERSION_SUFFIX_SHORT}
+target_compile_definitions(
+  firmware
+  PRIVATE
+  PROJECT_VERSION_MAJOR=${PROJECT_VERSION_MAJOR}
+  PROJECT_VERSION_MINOR=${PROJECT_VERSION_MINOR}
+  PROJECT_VERSION_REV=${PROJECT_VERSION_REV}
+  PROJECT_BUILD_NUMBER=${BUILD_NUMBER}
+  FW_VERSION_FULL_STR="${PROJECT_VERSION_FULL}"
+  FW_VERSION_STR="${PROJECT_VERSION}"
+  FW_VERSION_SUFFIX_STR="${PROJECT_VERSION_SUFFIX}"
+  FW_VERSION_SUFFIX_SHORT_STR="${PROJECT_VERSION_SUFFIX_SHORT}"
   )
-
 add_subdirectory(hal)
 add_subdirectory(logic)
 add_subdirectory(modules)

src/application.cpp

@@ -20,7 +20,7 @@
 #include "logic/tool_change.h"
 #include "logic/unload_filament.h"
 
-#include "version.h"
+#include "version.hpp"
 
 #include "panic.h"
 

src/registers.cpp

@@ -6,7 +6,7 @@
 
 #include "registers.h"
 #include "application.h"
-#include "version.h"
+#include "version.hpp"
 
 #include "modules/finda.h"
 #include "modules/fsensor.h"

src/version.c

@@ -1,18 +0,0 @@
-/// @file version.c
-#include "version.h"
-
-#define _STR(x) #x
-#define STR(x) _STR(x)
-
-const char project_version[] = STR(FW_VERSION);
-
-const char project_version_full[] = STR(FW_VERSION_FULL);
-
-const char project_version_suffix[] = STR(FW_VERSION_SUFFIX);
-
-const char project_version_suffix_short[] = STR(FW_VERSION_SUFFIX_SHORT);
-
-const uint8_t project_major = project_version_major;
-const uint8_t project_minor = project_version_minor;
-const uint16_t project_revision = project_version_revision;
-const uint16_t project_build_number = project_version_build;

src/version.h

@@ -1,44 +0,0 @@
-/// @file version.h
-#pragma once
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif //__cplusplus
-
-#define project_version_major 2
-#define project_version_minor 1
-#define project_version_revision 1
-#define project_version_build 634
-#define FW_BUILD_NUMBER 0
-
-/// Project's version (2.0.0)
-extern const char project_version[];
-
-/// Full project's version (2.0.0-BETA+1035.PR111.B4)
-extern const char project_version_full[];
-
-/// Project's version suffix (-BETA+1035.PR111.B4)
-extern const char project_version_suffix[];
-
-/// Project's short version suffix (+1035)
-extern const char project_version_suffix_short[];
-
-/// Project's major version
-extern const uint8_t project_major;
-
-/// Project's minor version
-extern const uint8_t project_minor;
-
-/// Project's revision number
-extern const uint16_t project_revision;
-
-/// Project's build number (number of commits in a branch)
-extern const uint16_t project_build_number;
-
-/// Firmware name
-extern const char project_firmware_name[];
-
-#ifdef __cplusplus
-}
-#endif //__cplusplus

src/version.hpp

@@ -0,0 +1,32 @@
+/// @file version.h
+#pragma once
+#include <stdint.h>
+
+/// Project's version (2.0.0)
+static constexpr char project_version[] = FW_VERSION_STR;
+
+/// Full project's version (2.0.0-BETA+1035.PR111.B4)
+static constexpr char project_version_full[] = FW_VERSION_FULL_STR;
+
+/// Project's version suffix (-BETA+1035.PR111.B4)
+static constexpr char project_version_suffix[] = FW_VERSION_SUFFIX_STR;
+
+/// Project's short version suffix (+1035)
+static constexpr char project_version_suffix_short[] = FW_VERSION_SUFFIX_SHORT_STR;
+
+/// Project's major version
+static constexpr uint8_t project_major = PROJECT_VERSION_MAJOR;
+
+/// Project's minor version
+static constexpr uint8_t project_minor = PROJECT_VERSION_MINOR;
+
+/// Project's revision number
+static constexpr uint16_t project_revision = PROJECT_VERSION_REV;
+
+/// Project's build number (number of commits in a branch)
+static constexpr uint16_t project_build_number = PROJECT_BUILD_NUMBER;
+
+static_assert(PROJECT_VERSION_MAJOR <= UINT8_MAX);
+static_assert(PROJECT_VERSION_MINOR <= UINT8_MAX);
+static_assert(PROJECT_VERSION_REV <= UINT8_MAX);
+static_assert(PROJECT_BUILD_NUMBER <= UINT16_MAX);

version.cmake

@@ -0,0 +1,15 @@
+# The project's version definition/source of truth. It could have been just pasted at the top of
+# ProjectVersion.cmake but that makes it a bit harder to locate...
+
+set(PROJECT_VERSION_MAJOR
+    2
+    CACHE STRING "Project major version" FORCE
+    )
+set(PROJECT_VERSION_MINOR
+    1
+    CACHE STRING "Project minor version" FORCE
+    )
+set(PROJECT_VERSION_REV
+    1
+    CACHE STRING "Project revision" FORCE
+    )

version.txt

@@ -1 +0,0 @@
-2.0.19