Add bundle function

README.md

@@ -40,6 +40,14 @@ python3 -m karaokatalog.ui.serve $SONG_LIBRARY
 
 To speed up the start, use jsonification to create and persist a JSON of all songs in the library root dir before starting this UI.
 
+#### Bundle
+
+**Create a bundle `.zip` file containg web app and data** that can be uploaded to any web hoster that can host static files.
+
+```bash
+python3 -m karaokatalog.ui.bundle $SONG_LIBRARY
+```
+
 ### Deduplication
 
 **Find and delete exactly duplicated songs**, i.e., songs with the same title and artist that also consist of exactly the same files in the directory.

karaokatalog/ui/bundle/__main__.py

@@ -0,0 +1,47 @@
+import json
+import logging
+from pathlib import Path
+from zipfile import ZipFile
+
+from karaokatalog.get_parser import get_parser
+from karaokatalog.Library import Library
+
+logging.basicConfig(
+    format="%(asctime)s [%(levelname)s] %(message)s", level=logging.INFO
+)
+
+STATIC_DIR = Path(__file__).parent.parent / "static"
+
+
+if __name__ == "__main__":
+    parser = get_parser(
+        "ui.bundle",
+        "Create a bundle ZIP containing the Karaokatalog web app and all data which can be uploaded to a static web server.",
+    )
+    parser.add_argument(
+        "-o",
+        "--out-path",
+        type=Path,
+        default=Path("./karaokatalog.zip"),
+        help="The path at which the output ZIP file should be stored",
+    )
+
+    args = parser.parse_args()
+    with ZipFile(args.out_path, "w") as out_zip:
+        for file_path in STATIC_DIR.rglob("*"):
+            relative_path = file_path.relative_to(STATIC_DIR)
+            out_zip.write(file_path, relative_path)
+
+        songs_json_path = args.library_path / "songs.json"
+
+        if songs_json_path.exists():
+            logging.info(f"Using existing songs.json at {songs_json_path}")
+            out_zip.write(songs_json_path, "songs.json")
+        else:
+            logging.info("Loading library")
+            library = Library.from_dir(args.library_path)
+            logging.info("Library loaded")
+
+            songs = [song.as_dict() for song in library.songs]
+            songs_json = json.dumps(songs, ensure_ascii=False, indent=4)
+            out_zip.writestr("songs.json", songs_json)