tools.images_packer: implement subcommand handler for build_cache_src

tools/images_packer/__main__.py

@@ -54,11 +54,6 @@
 
 
 def main_build_offline_ota_image_bundle(args: argparse.Namespace):
-    # ------ args check ------ #
-    if not (args.output or args.write_to):
-        print("ERR: at least one export option should be specified")
-        sys.exit(errno.EINVAL)
-
     # ------ parse input image options ------ #
     image_metas = []
     image_files = {}
@@ -81,6 +76,52 @@ def main_build_offline_ota_image_bundle(args: argparse.Namespace):
         print("ERR: at least one valid image should be given, abort")
         sys.exit(errno.EINVAL)
 
+    # ------ build image ------ #
+    with tempfile.TemporaryDirectory(prefix="offline_OTA_image_builder") as workdir:
+        build(
+            image_metas,
+            image_files,
+            workdir=workdir,
+            output=args.output,
+        )
+
+
+def main_build_external_cache_src(args: argparse.Namespace):
+    # ------ args check ------ #
+    if not (args.output or args.write_to):
+        logger.error("ERR: at least one export option should be specified")
+        sys.exit(errno.EINVAL)
+
+    # ------ parse args ------ #
+    image_metas: list[ImageMetadata] = []
+    image_files: dict[str, Path] = {}
+    count = 0
+
+    # retrieves images from --image arg
+    for _image_fpath in args.image:
+        count_str = str(count)
+        image_metas.append(ImageMetadata(ecu_id=count_str))
+        image_files[count_str] = _image_fpath
+        count += 1
+
+    # retrieves images from --image-dir arg
+    _image_store_dpath = Path(args.image_dir)
+    if not _image_store_dpath.is_dir():
+        logger.error(
+            f"ERR: specified <IMAGE_FILES_DIR>={_image_store_dpath} doesn't exist, abort"
+        )
+        sys.exit(errno.EINVAL)
+
+    for _image_fpath in _image_store_dpath.glob("*"):
+        count_str = str(count)
+        image_metas.append(ImageMetadata(ecu_id=count_str))
+        image_files[count_str] = _image_fpath
+        count += 1
+
+    if not image_metas:
+        print("ERR: at least one valid image should be given, abort")
+        sys.exit(errno.EINVAL)
+
     # ------ parse export options ------ #
     output_fpath, write_to_dev = args.output, args.write_to
 
@@ -109,14 +150,9 @@ def main_build_offline_ota_image_bundle(args: argparse.Namespace):
             image_files,
             workdir=workdir,
             output=output_fpath,
-            write_to_dev=write_to_dev,
         )
 
 
-def main_build_external_cache_src(args: argparse.Namespace):
-    pass
-
-
 #
 # ------ subcommands definition ------ #
 #

tools/images_packer/builder.py

@@ -174,7 +174,7 @@ def build(
     *,
     workdir: StrPath,
     output: Optional[StrPath],
-    write_to_dev: Optional[StrPath],
+    write_to_dev: Optional[StrPath] = None,
 ):
     _start_time = time.time()
     logger.info(f"job started at {int(_start_time)}")