fix combine.py to handle different bootloader offstes

.gitignore

@@ -3,5 +3,6 @@ build/
 # Regenerate sdkconfig from the sdkconfig.defaults* files.
 sdkconfig.esp32
 sdkconfig.esp32c6
+sdkconfig.*.old
 sdkconfig.old
 managed_components/

combine.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+import json
 import re
 import sys
 
@@ -12,9 +13,14 @@ def extract_firmware_version():
                 # Split by double quote and get the second element
                 version = line.split('"')[1]
                 return version
+        raise RuntimeError("FIRMWARE_VERSION not found in CommandHandler.cpp")
 
+def get_idf_target():
+    with open("build/config.env") as file:
+        config = json.load(file)
+        return config["IDF_TARGET"]
 
-booloaderData = open("build/bootloader/bootloader.bin", "rb").read()
+bootloaderData = open("build/bootloader/bootloader.bin", "rb").read()
 partitionData = open("build/partition_table/partition-table.bin", "rb").read()
 #phyData = open("data/phy.bin", "rb").read()
 appData = open("build/nina-fw.bin", "rb").read()
@@ -40,8 +46,19 @@ if outputSize % 1024:
 outputData = bytearray(b"\xff") * outputSize
 
 # copy data: bootloader, partitions, app
-for i in range(0, len(booloaderData)):
-    outputData[0x1000 + i] = booloaderData[i]
+BOOTLOADER_OFFSET = {
+    "esp32" : 0x1000,
+    "esp32c6" : 0x0000,
+    }
+
+try:
+    target = get_idf_target()
+    bootloader_offset = BOOTLOADER_OFFSET[get_idf_target()]
+except KeyError:
+    raise RuntimeError(f"unsupported IDF_TARGET: {target}")
+
+for i in range(0, len(bootloaderData)):
+    outputData[bootloader_offset + i] = bootloaderData[i]
 
 for i in range(0, len(partitionData)):
     outputData[0x8000 + i] = partitionData[i]