[Bouffalolab] Generate Bouffalolab format OTA image after compile don…

…e. (#27337)

* generate bouffalolab format ota image after compile done

* fix spell

* fix restyle

examples/lighting-app/bouffalolab/README.md

@@ -261,16 +261,23 @@ After successful commissioning, cluster commands available to control the board.
 Please take [guide](../../ota-provider-app/linux/README.md) for more detail on
 ota-provider-app build and usage.
 
-### Create the Matter OTA with Bouffalolab OTA bin `FW_OTA.bin.xz.hash`
+### Create the Matter OTA image with Bouffalolab OTA `bin.xz.hash` format image
 
-- Build `Bouffalo Lab` OTA image as following execution using python script
- `*.flash.py` under firmware build out folder,
- ```shell
- ./<output_firmware_name>.flash.py --build
- ```
- After script executed, a folder `ota_images` and an image
- `FW_OTA.bin.xz.hash` will be generated. `FW_OTA.bin.xz.hash` is compressed
- with hash verification for build out firmware.
+- `Bouffalo Lab` OTA `bin.xz.hash` format image
+
+ - Build `Bouffalo Lab` OTA image as following execution using python
+ script `*.flash.py` under firmware build out folder,
+ `shell ./<output_firmware_name>.flash.py --build` After script executed,
+ a folder `ota_images` and an image `FW_OTA.bin.xz.hash` will be
+ generated. `FW_OTA.bin.xz.hash` is compressed with hash verification for
+ build out firmware.
+
+ - `bin.xz.hash` image
+
+ After compile done, the build script will call
+ `<output_firmware_name>.flash.py` to generate `Bouffalo Lab` OTA format
+ image as above, and put it under out folder with name likes
+ `<output_firmware_name>.bin.xz.hash`
 
 * Build Matter `*.ota` OTA image with `Bouffalo Lab` OTA image under
  **connectedhomeip** repo folder

scripts/build/builders/bouffalolab.py

@@ -141,3 +141,27 @@ def build_outputs(self):
  }
 
  return items
+
+ def PostBuildCommand(self):
+
+ # Generate Bouffalo Lab format OTA image for development purpose.
+
+ ota_images_folder_path = self.output_dir + "/ota_images"
+ ota_images_dev_image = self.output_dir + "/" + self.app.AppNamePrefix(self.chip_name) + ".bin.xz.hash"
+ ota_images_image = self.output_dir + "/ota_images/FW_OTA.bin.xz.hash"
+ ota_images_firmware = self.output_dir + "/" + self.app.AppNamePrefix(self.chip_name) + ".bin"
+
+ ota_images_flash_tool = self.output_dir + "/" + self.app.AppNamePrefix(self.chip_name) + ".flash.py"
+
+ os.system("rm -rf " + ota_images_folder_path)
+ os.system("rm -rf " + ota_images_dev_image)
+
+ if not os.path.isfile(ota_images_firmware):
+ return
+
+ os.system("python " + ota_images_flash_tool + " --build")
+
+ if not os.path.isfile(ota_images_image):
+ return
+
+ os.system("cp " + ota_images_image + " " + ota_images_dev_image)