Make git a required build dependency

stm-firmware/CMakeLists.txt

@@ -38,9 +38,8 @@ if (GIT_FOUND)
 	)
 	message("${BoldGreen}Git based version number: ${GIT_DESCRIBE}${ColorReset}")
 else (GIT_FOUND)
-	set(GIT_DESCRIBE "v0.0.0-unknown")
 	message("${BoldRed}No git installation found. It is highly recommended using git to generate the version number")
-	message("Version is set to: ${GIT_DESCRIBE}${ColorReset}")
+	message(FATAL_ERROR "Git is required")
 endif (GIT_FOUND)
 
 find_program(PATCHELFCRC patchelfcrc)
@@ -60,8 +59,7 @@ add_compile_options(-Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmayb
 add_compile_options(-mlittle-endian -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -nostartfiles -Wimplicit-fallthrough=3 -Wsign-compare)
 
 
-set(GIT_DESCRIBE "${GIT_DESCRIBE}")
-add_definitions(-DBASE64_LOOKUP_TABLE_SECTION=\".ccm.bss\" -DSHELLMATTA_HELP_ALIAS=\"?\" -DGIT_VER=${GIT_DESCRIBE} -DHSE_VALUE=8000000UL -DSTM32F407xx -DSTM32F4XX -DARM_MATH_CM4)
+add_definitions(-DBASE64_LOOKUP_TABLE_SECTION=\".ccm.bss\" -DSHELLMATTA_HELP_ALIAS=\"?\" -DHSE_VALUE=8000000UL -DSTM32F407xx -DSTM32F4XX -DARM_MATH_CM4)
 
 add_subdirectory(doxygen)
 add_subdirectory(updater/ram-code)
@@ -101,18 +99,28 @@ aux_source_directory("shellmatta/src" SHELLMATTA_SRCS)
 aux_source_directory("updater" UPDATER_SRCS)
 aux_source_directory("temp-profile" PROFILE_SRCS)
 
+set(GEN_VERSION_HEADER_PATH "${CMAKE_CURRENT_BINARY_DIR}/include/generated-version")
+
+
+add_custom_target(
+	generate-version-header
+	COMMAND mkdir -p ${GEN_VERSION_HEADER_PATH} && bash "${CMAKE_CURRENT_SOURCE_DIR}/create_version_header.sh" "${GEN_VERSION_HEADER_PATH}/version.h"
+	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
 add_executable(${ELFFILE} ${MAIN_SOURCES} ${CFG_PARSER_SRCS} ${UI_SRCS}
 			${FAT_SRCS} ${SDIO_SRCS} ${BOOT_SRCS} ${SETUP_SRCS}
 			${STM_PERIPH_SRCS} ${SETTINGS_SRCS} ${SAFETY_SRCS}
 			${SHELLMATTA_SRCS} ${UPDATER_SRCS} ${PROFILE_SRCS}
 		)
 	
-add_dependencies(${ELFFILE} updater-ram-code-header-blob)		
+add_dependencies(${ELFFILE} updater-ram-code-header-blob generate-version-header)
+
 
 target_include_directories(${ELFFILE} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/shellmatta/api ${CMAKE_CURRENT_SOURCE_DIR}/config-parser/include)
 target_link_options(${ELFFILE} PRIVATE -mlittle-endian -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 --disable-newlib-supplied-syscalls -nostartfiles -T${LINKER_SCRIPT} -Wl,--print-memory-usage)
 target_link_libraries(${ELFFILE} base64-lib linklist-lib)
-target_include_directories(${ELFFILE} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/updater/ram-code/include/")
+target_include_directories(${ELFFILE} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/updater/ram-code/include/" "${CMAKE_CURRENT_BINARY_DIR}/include/")
 
 add_custom_command(
     TARGET ${ELFFILE}

stm-firmware/create_version_header.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+if [[ -z $1 ]]; then
+	# Exit with error in case no output file is specified
+	exit -1
+fi
+
+firmware_version=`git describe --tags --always --dirty`
+commit=`git rev-parse HEAD`
+
+echo "#ifndef _VERSION_GENERATED_H_" > $1
+echo "#define _VERSION_GENERATED_H_" >> $1
+echo "#define GIT_VERSION_STRING \"$firmware_version\"" >> $1
+echo "#define GIT_FULL_COMMIT \"$commit\"" >> $1
+echo "#endif /* _VERSION_GENERATED_H_ */" >> $1

stm-firmware/include/reflow-controller/version.h

@@ -0,0 +1,27 @@
+/* Reflow Oven Controller
+ *
+ * Copyright (C) 2022  Mario Hüttel <mario.huettel@gmx.net>
+ *
+ * This file is part of the Reflow Oven Controller Project.
+ *
+ * The reflow oven controller is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * The Reflow Oven Control Firmware is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the reflow oven controller project.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _VERSION_H_
+#define _VERSION_H_
+
+extern const char *git_version_string;
+extern const char *git_full_commit_string;
+
+#endif /* _VERSION_H_ */

stm-firmware/version.c

@@ -0,0 +1,25 @@
+/* Reflow Oven Controller
+ *
+ * Copyright (C) 2022  Mario Hüttel <mario.huettel@gmx.net>
+ *
+ * This file is part of the Reflow Oven Controller Project.
+ *
+ * The reflow oven controller is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * The Reflow Oven Control Firmware is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the reflow oven controller project.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <reflow-controller/version.h>
+#include <generated-version/version.h>
+
+const char *git_version_string = GIT_VERSION_STRING;
+const char *git_full_commit_string = GIT_FULL_COMMIT;