fix: remove python dependency for revision build script

src/Makefile

@@ -20,7 +20,7 @@ export STM32F4XX ?= 1
 # Set to 1 HYDRAFW_NFC to include HydraNFC extension support
 export HYDRAFW_NFC ?= 1
 export HYDRAFW_DEBUG ?= 0
-export FW_REVISION := $(shell $(PYTHON) build-scripts/hydrafw-revision.py)
+export FW_REVISION := $(shell build-scripts/hydrafw-revision)
 
 HYDRAFW_OPTS =
 

src/build-scripts/hydrafw-revision

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Get the version description from git
+version=$(git describe --tags --always --dirty --long)
+
+# Use regex to match version pattern v(x.x)
+if [[ $version =~ v([0-9]+\.[0-9]+).* ]]
+then
+  # If match found, print the version
+  echo ${BASH_REMATCH[1]}
+else
+  # Print 0.0 if no match is found
+  echo "0.0"
+fi