Add script to automatically bump the version

Closes #44

Author: mrexodia

.github/workflows/build.yml

@@ -50,7 +50,7 @@ jobs:
         string: ${{ runner.os }}
 
     - name: Compress artifacts
-      uses: papeloto/action-zip@v1
+      uses: vimtor/action-zip@v1
       with:
         files: install/bin/
         dest: ${{ github.event.repository.name }}-${{ steps.osname.outputs.lowercase }}.zip

cmake/bump_version.cmake

@@ -0,0 +1,70 @@
+cmake_minimum_required(VERSION 3.20)
+
+if(NOT CMAKE_SCRIPT_MODE_FILE)
+    message(FATAL_ERROR "Usage: cmake -P bump_version.cmake [1.2.3]")
+endif()
+
+if(NOT EXISTS "${CMAKE_SOURCE_DIR}/cmake.toml")
+    message(FATAL_ERROR "Cannot find cmake.toml")
+endif()
+
+if(NOT EXISTS "${CMAKE_SOURCE_DIR}/cmake/cmkr.cmake")
+    message(FATAL_ERROR "Cannot find cmkr.cmake")
+endif()
+
+file(READ "${CMAKE_SOURCE_DIR}/cmake.toml" CMAKE_TOML)
+string(FIND "${CMAKE_TOML}" "[project]" PROJECT_INDEX)
+string(SUBSTRING "${CMAKE_TOML}" ${PROJECT_INDEX} -1 CMAKE_TOML_PROJECT)
+set(SEMVER_REGEX "([0-9]+)\\.([0-9]+)\\.([0-9]+)")
+set(VERSION_REGEX "version = \"${SEMVER_REGEX}\"")
+if(CMAKE_TOML_PROJECT MATCHES "${VERSION_REGEX}")
+    set(MAJOR "${CMAKE_MATCH_1}")
+    set(MINOR "${CMAKE_MATCH_2}")
+    set(PATCH "${CMAKE_MATCH_3}")
+    set(OLDVERSION "${MAJOR}.${MINOR}.${PATCH}")
+else()
+    message(FATAL_ERROR "Failed to match semantic version in cmake.toml")
+endif()
+
+if(CMAKE_ARGV3)
+    if(NOT CMAKE_ARGV3 MATCHES "${SEMVER_REGEX}")
+        message(FATAL_ERROR "Invalid semantic version number '${CMAKE_ARGV3}'")
+    endif()
+    set(NEWVERSION "${CMAKE_ARGV3}")
+else()
+    math(EXPR NEWPATCH "${PATCH} + 1")
+    set(NEWVERSION "${MAJOR}.${MINOR}.${NEWPATCH}")
+endif()
+
+message(STATUS "Version ${OLDVERSION} -> ${NEWVERSION}")
+
+find_program(CMKR_EXECUTABLE "cmkr" PATHS "${CMAKE_SOURCE_DIR}/build" NO_CACHE REQUIRED)
+message(STATUS "Found cmkr: ${CMKR_EXECUTABLE}")
+
+# Replace version in cmake.toml
+string(REPLACE "version = \"${OLDVERSION}\"" "version = \"${NEWVERSION}\"" CMAKE_TOML "${CMAKE_TOML}")
+file(CONFIGURE
+    OUTPUT "${CMAKE_SOURCE_DIR}/cmake.toml"
+    CONTENT "${CMAKE_TOML}"
+    @ONLY
+    NEWLINE_STYLE LF
+)
+
+# Run cmkr gen
+execute_process(COMMAND "${CMKR_EXECUTABLE}" gen RESULT_VARIABLE CMKR_EXEC_RESULT)
+if(NOT CMKR_EXEC_RESULT EQUAL 0)
+    message(FATAL_ERROR "cmkr gen failed (exit code ${CMKR_EXEC_RESULT})")
+endif()
+
+# Replace version in cmkr.cmake
+file(READ "${CMAKE_SOURCE_DIR}/cmake/cmkr.cmake" CMKR_CMAKE)
+string(REGEX REPLACE "CMKR_TAG \"[^\"]+\"" "CMKR_TAG \"v${NEWVERSION}\"" CMKR_CMAKE "${CMKR_CMAKE}")
+file(CONFIGURE
+    OUTPUT "${CMAKE_SOURCE_DIR}/cmake/cmkr.cmake"
+    CONTENT "${CMKR_CMAKE}"
+    @ONLY
+    NEWLINE_STYLE LF
+)
+
+# Print git commands
+message(STATUS "Git commands to create new version:\ngit commit -a -m \"Bump to ${NEWVERSION}\"\ngit tag v${NEWVERSION}\ngit push origin main v${NEWVERSION}")