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import os |
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import click |
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import polars as pl |
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@click.command() |
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@click.option( |
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"--src_dir", |
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type=click.Path(exists=True, file_okay=False), |
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required=True, |
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help="Path to the directory containing source parquet files, e.g., './50m'.", |
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) |
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@click.option( |
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"--dst_dir", |
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type=click.Path(file_okay=False), |
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required=False, |
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help="Path to the directory where Parquet files will be saved. " |
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"If not specified, Parquet files are saved in 'src_dir'. e.g., './out'.", |
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) |
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@click.option( |
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"--file_name", |
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type=str, |
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default="multi_event", |
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help="Base name for the output Parquet file. Default is 'multi_event'.", |
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) |
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def cli(src_dir: str, dst_dir: str, file_name: str): |
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if dst_dir is None: |
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dst_dir = src_dir |
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print(f"{src_dir=}, {dst_dir=}, {file_name=}") |
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make_multievent_dataset(src_dir, dst_dir, file_name) |
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def make_multievent_dataset(src_dir: str, dst_dir: str, file_name: str): |
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os.makedirs(dst_dir, exist_ok=True) |
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dislikes = pl.scan_parquet(os.path.join(src_dir, "dislikes.parquet")) |
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likes = pl.scan_parquet(os.path.join(src_dir, "likes.parquet")) |
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listens = pl.scan_parquet(os.path.join(src_dir, "listens.parquet")) |
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undislikes = pl.scan_parquet(os.path.join(src_dir, "undislikes.parquet")) |
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unlikes = pl.scan_parquet(os.path.join(src_dir, "unlikes.parquet")) |
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events = pl.Enum(["listen", "dislike", "like", "undislike", "unlike"]) |
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combined_df = pl.concat( |
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[ |
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listens.with_columns( |
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pl.lit("listen").cast(events).alias("event_type"), |
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), |
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dislikes.with_columns( |
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pl.lit(None).alias("played_ratio_pct"), |
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pl.lit(None).alias("track_length_seconds"), |
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pl.lit("dislike").cast(events).alias("event_type"), |
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), |
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likes.with_columns( |
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pl.lit(None).alias("played_ratio_pct"), |
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pl.lit(None).alias("track_length_seconds"), |
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pl.lit("like").cast(events).alias("event_type"), |
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), |
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undislikes.with_columns( |
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pl.lit(None).alias("played_ratio_pct"), |
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pl.lit(None).alias("track_length_seconds"), |
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pl.lit("undislike").cast(events).alias("event_type"), |
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), |
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unlikes.with_columns( |
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pl.lit(None).alias("played_ratio_pct"), |
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pl.lit(None).alias("track_length_seconds"), |
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pl.lit("unlike").cast(events).alias("event_type"), |
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), |
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] |
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).sort( |
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by=[ |
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"uid", |
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"timestamp", |
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], |
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maintain_order=True, |
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) |
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combined_df.with_columns(pl.col("event_type").cast(events)).sink_parquet( |
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os.path.join(dst_dir, file_name + ".parquet"), |
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compression="lz4", |
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statistics=True, |
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) |
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if __name__ == "__main__": |
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cli() |
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