[Build] Update artifacts only when needed (#150)

buildSrc/scripts/equal_file_size.py

@@ -0,0 +1,8 @@
+import sys
+import os
+
+# A python script to compare file size of two files.
+# Used to compare sizes of binaries to see, if there is a difference between them.
+# Shell scripts are not used, since Python is a more portable solution.
+
+os.path.getsize(sys.argv[1]) == os.path.getsize(sys.argv[2]) if sys.exit(0) else sys.exit(1)