Get version from git (#450)

* get version from git tag rather than hard coded in cmake

Author: charlie-foxtrot

.github/workflows/build.yml

@@ -22,6 +22,8 @@ jobs:
 
     - name: Checkout
       uses: actions/checkout@v4
+      with:
+        fetch-depth: '0'
 
     - name: Install packaged dependencies
       run: .github/install_dependencies

CMakeLists.txt

@@ -1,10 +1,9 @@
 cmake_minimum_required (VERSION 3.1)
 project (RTLSDR-Airband CXX)
 
-set (RTL_AIRBAND_VERSION_MAJOR 5)
-set (RTL_AIRBAND_VERSION_MINOR 0)
-set (RTL_AIRBAND_VERSION_PATCH 0)
-set (RTL_AIRBAND_VERSION "${RTL_AIRBAND_VERSION_MAJOR}.${RTL_AIRBAND_VERSION_MINOR}.${RTL_AIRBAND_VERSION_PATCH}")
+execute_process(COMMAND git describe --tags --abbrev --dirty --always
+   OUTPUT_VARIABLE RTL_AIRBAND_VERSION
+   OUTPUT_STRIP_TRAILING_WHITESPACE)
 
 set (CMAKE_CXX_STANDARD 11)
 set (CXX_STANDARD_REQUIRED ON)
@@ -26,4 +25,3 @@ if(DEBUG_SQUELCH)
 endif()
 
 add_subdirectory (src)
-

src/CMakeLists.txt

@@ -248,6 +248,7 @@ else()
 endif()
 
 message(STATUS "RTLSDR-Airband configuration summary:\n")
+message(STATUS "- Version string:\t\t${RTL_AIRBAND_VERSION}")
 message(STATUS "- Build type:\t\t${CMAKE_BUILD_TYPE}")
 message(STATUS "- Operating system:\t\t${CMAKE_SYSTEM_NAME}")
 message(STATUS "- SDR drivers:")

src/CMakeModules/version.cmake

@@ -1,19 +1,4 @@
-set (VERSION "char const *RTL_AIRBAND_VERSION=\"")
-execute_process(COMMAND git describe --always --tags --dirty
-		OUTPUT_VARIABLE GIT_VERSION
-		ERROR_QUIET
-		OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-if ("${GIT_VERSION}" STREQUAL "")
-	string(APPEND VERSION "${RTL_AIRBAND_VERSION}")
-elseif("${GIT_VERSION}" MATCHES ".+-g(.+)")
-	string(APPEND VERSION "${RTL_AIRBAND_VERSION}-${CMAKE_MATCH_1}")
-elseif("${GIT_VERSION}" MATCHES "v(.+)")
-	string(APPEND VERSION "${CMAKE_MATCH_1}")
-else()
-	string(APPEND VERSION "${RTL_AIRBAND_VERSION}-${GIT_VERSION}")
-endif()
-string(APPEND VERSION "\";\n")
+set (VERSION "char const *RTL_AIRBAND_VERSION=\"${RTL_AIRBAND_VERSION}\";\n")
 
 if(EXISTS ${CMAKE_CURRENT_BINARY_DIR}/version.cpp)
 	file(READ ${CMAKE_CURRENT_BINARY_DIR}/version.cpp VERSION_)