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176 | def sync(
query: List[str],
downloader: Downloader,
) -> None:
"""
Sync function for the console.
It will download the songs and remove the ones that are no longer
present in the playlists/albums/etc
### Arguments
- query: list of strings to search for.
- downloader: Already initialized downloader instance.
"""
save_path = downloader.settings["save_file"]
downloader.settings["save_file"] = None
m3u_file = downloader.settings["m3u"]
downloader.settings["m3u"] = None
# Query and save file
# Create initial sync file
if query and save_path:
if any(req for req in query if req.endswith(".spotdl")):
# If the query contains a .spotdl file, and we are about to create
# .spotdl file, raise an error.
raise ValueError(
"Cannot create a sync file with a .spotdl file in the query."
)
# Parse the query
songs_list = parse_query(
query=query,
threads=downloader.settings["threads"],
use_ytm_data=downloader.settings["ytm_data"],
playlist_numbering=downloader.settings["playlist_numbering"],
album_type=downloader.settings["album_type"],
)
# Create sync file
with open(save_path, "w", encoding="utf-8") as save_file:
json.dump(
{
"type": "sync",
"query": query,
"songs": [song.json for song in songs_list],
},
save_file,
indent=4,
ensure_ascii=False,
)
# Perform initial download
downloader.download_multiple_songs(songs_list)
# Create m3u file
if m3u_file:
gen_m3u_files(
songs_list,
m3u_file,
downloader.settings["output"],
downloader.settings["format"],
downloader.settings["restrict"],
False,
)
return None
# If the query is a single file, download it
if len(query) == 1 and query[0].endswith(".spotdl") and not save_path:
# Load the sync file
with open(query[0], "r", encoding="utf-8") as sync_file:
sync_data = json.load(sync_file)
# Verify the sync file
if (
not isinstance(sync_data, dict)
or sync_data.get("type") != "sync"
or sync_data.get("songs") is None
):
raise ValueError("Sync file is not a valid sync file.")
# Parse the query
songs_playlist = parse_query(
query=sync_data["query"],
threads=downloader.settings["threads"],
use_ytm_data=downloader.settings["ytm_data"],
playlist_numbering=downloader.settings["playlist_numbering"],
album_type=downloader.settings["album_type"],
)
# Get the names and URLs of previously downloaded songs from the sync file
old_files = []
for entry in sync_data["songs"]:
file_name = create_file_name(
Song.from_dict(entry),
downloader.settings["output"],
downloader.settings["format"],
downloader.settings["restrict"],
)
old_files.append((file_name, entry["url"]))
new_urls = [song.url for song in songs_playlist]
# Delete all song files whose URL is no longer part of the latest playlist
if not downloader.settings["sync_without_deleting"]:
to_delete = [path for (path, url) in old_files if url not in new_urls]
for file in to_delete:
if file.exists():
logger.info("Deleting %s", file)
try:
file.unlink()
except (PermissionError, OSError) as exc:
logger.debug(
"Could not remove temp file: %s, error: %s", file, exc
)
else:
logger.debug("%s does not exist.", file)
if len(to_delete) == 0:
logger.info("Nothing to delete...")
else:
logger.info("%s old songs were deleted.", len(to_delete))
if m3u_file:
gen_m3u_files(
songs_playlist,
m3u_file,
downloader.settings["output"],
downloader.settings["format"],
downloader.settings["restrict"],
False,
)
# Write the new sync file
with open(query[0], "w", encoding="utf-8") as save_file:
json.dump(
{
"type": "sync",
"query": sync_data["query"],
"songs": [song.json for song in songs_playlist],
},
save_file,
indent=4,
ensure_ascii=False,
)
downloader.download_multiple_songs(songs_playlist)
return None
raise ValueError(
"Wrong combination of arguments. "
"Either provide a query and a save path. Or a single sync file in the query"
)
|