updated Buildscripts to have central Versioning

Software/codegen/prepare_littlefs.py

@@ -1,7 +1,3 @@
-# SCRIPT TO GZIP CRITICAL FILES FOR ACCELERATED WEBSERVING
-# see also https://community.platformio.org/t/question-esp32-compress-files-in-data-to-gzip-before-upload-possible-to-spiffs/6274/10
-
-
 import glob
 import shutil
 import gzip
@@ -167,10 +163,15 @@ def gzip_webfiles(source, target, env):
         shutil.rmtree(data_temp_dir_path)
 
     return
- 
+
 def gzip_binffiles(source, target, env):
+    git_revision = popen('git rev-parse --short HEAD').read().strip()
+    custom_flash_version = env.GetProjectOption("custom_flash_version", "0.99")
+
+    # Format the target file name
+    target_filename = f"filesystem_{custom_flash_version}_{git_revision}.fs"
     littlefsbin = target[0].get_abspath()
-    targetbin = os.path.join(os.path.dirname(littlefsbin), 'filesystem.fs')
+    targetbin = os.path.join(os.path.dirname(littlefsbin), target_filename)
     shutil.copyfile(littlefsbin, targetbin)
     gzip_file(targetbin, os.path.join(str(targetbin) + '.gz'))
     os.remove(targetbin)