Display Commit ID Used for Build in AboutDialog (#6516)

* Display commit ID used for build in AboutDialog

* Dynamically check for snapshots

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>

CMakeLists.txt

@@ -22,6 +22,28 @@ if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
   set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build type (default Release)" FORCE)
 endif()
 
+find_package(Git)
+if(GIT_FOUND AND EXISTS "${CMAKE_SOURCE_DIR}/.git")
+    # Check if Orca is on a tag
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} describe --exact-match --tags
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        RESULT_VARIABLE GIT_TAG_CHECK
+    )
+    if(NOT GIT_TAG_CHECK EQUAL 0)
+    add_definitions("-DSNAPSHOT_BUILD=1")
+    endif()
+
+    # Check current Git commit hash
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} log -1 --format=%h
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE GIT_COMMIT_HASH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    add_definitions("-DGIT_COMMIT_HASH=\"${GIT_COMMIT_HASH}\"")
+endif()
+
 if(DEFINED ENV{SLIC3R_STATIC})
         set(SLIC3R_STATIC_INITIAL $ENV{SLIC3R_STATIC})
 else()