Add EWT manifest generation

Author: kbx81

.github/workflows/build.yml

@@ -85,13 +85,14 @@ jobs:
       working-directory: build
       run: cp usb2uart.bin ../output/${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.bin
 
-    - name: Checksums
+    - name: Generate checksums and EWT manifest
       working-directory: output
       run: |
         md5sum ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.bin | cut -d ' ' -f 1 > ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.bin.md5
         md5sum ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.factory.bin | cut -d ' ' -f 1 > ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.factory.bin.md5
         sha256sum ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.bin | cut -d ' ' -f 1 > ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.bin.sha256
         sha256sum ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.factory.bin | cut -d ' ' -f 1 > ${{ matrix.device }}-esp-bridge.${{ steps.version.outputs.version }}.factory.bin.sha256
+        python3 build-ewt-manifest.py -v ${{ steps.version.outputs.version }} > manifest.json
 
     - name: Upload artifacts
       uses: actions/upload-artifact@v4

build_ewt_manifest.py

@@ -0,0 +1,26 @@
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument('-v', help='Version number to use in the manifest. Example: 2025.09.2', required=True, type=str)
+
+version = parser.parse_args().v
+
+manifest = {
+  "name": "zwa-2.usb=uart-bridge",
+  "version": version,
+  "home_assistant_domain": "esphome",
+  "new_install_prompt_erase": "false",
+  "builds": [
+    {
+      "chipFamily": "ESP32-S3",
+      "parts": [
+        {
+          "path": f"{version}/zwa2-esp-bridge.{version}.factory.bin",
+          "offset": 0
+        }
+      ]
+    }
+  ]
+}
+
+print(manifest)