--- /dev/null
+#!/usr/bin/env python3
+
+import json
+import os
+import hashlib
+
+
+def e(variable, default=None):
+ return os.environ.get(variable, default)
+
+
+json_path = "{}{}{}.json".format(e("BIN_DIR"), os.sep, e("IMAGE_PREFIX"))
+
+with open(os.path.join(e("BIN_DIR"), e("IMAGE_NAME")), "rb") as image_file:
+ image_hash = hashlib.sha256(image_file.read()).hexdigest()
+
+
+def get_titles():
+ titles = []
+ for prefix in ["", "ALT0_", "ALT1_", "ALT2_"]:
+ title = {}
+ for var in ["vendor", "model", "variant"]:
+ if e("DEVICE_{}{}".format(prefix, var.upper())):
+ title[var] = e("DEVICE_{}{}".format(prefix, var.upper()))
+
+ if title:
+ titles.append(title)
+
+ if not titles:
+ titles.append({"title": e("DEVICE_TITLE")})
+
+ return titles
+
+
+if not os.path.exists(json_path):
+ device_info = {
+ "id": e("DEVICE_ID"),
+ "image_prefix": e("IMAGE_PREFIX"),
+ "images": [],
+ "metadata_version": 1,
+ "supported_devices": e("SUPPORTED_DEVICES").split(),
+ "target": "{}/{}".format(e("TARGET"), e("SUBTARGET", "generic")),
+ "titles": get_titles(),
+ "version_commit": e("VERSION_CODE"),
+ "version_number": e("VERSION_NUMBER"),
+ }
+else:
+ with open(json_path, "r") as json_file:
+ device_info = json.load(json_file)
+
+image_info = {"type": e("IMAGE_TYPE"), "name": e("IMAGE_NAME"), "sha256": image_hash}
+device_info["images"].append(image_info)
+
+with open(json_path, "w") as json_file:
+ json.dump(device_info, json_file, sort_keys=True, indent=" ")