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c4e128a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | """kdc export command — re-export metadata into Parquet/JSONL datasets."""
from __future__ import annotations
import json
from pathlib import Path
import typer
from rich.console import Console
from app.models.document import DocumentMeta
from app.utils.container import Container
app = typer.Typer(help="Export metadata to Parquet or JSONL datasets.")
console = Console()
@app.command()
def run(
ctx: typer.Context,
meta_dir: Path = typer.Option(Path("metadata"), "--meta-dir", help="Metadata directory."),
format: str = typer.Option("both", "--format", help="Export format: parquet | jsonl | both"),
) -> None:
"""Re-export metadata files into Parquet or JSONL dataset formats."""
container: Container = ctx.obj
meta_dir = meta_dir.resolve()
files = list(meta_dir.glob("*.json"))
if not files:
console.print(f"[yellow]No metadata files found in {meta_dir}[/yellow]")
raise typer.Exit()
documents: list[DocumentMeta] = []
for f in files:
try:
data = json.loads(f.read_text(encoding="utf-8"))
documents.append(DocumentMeta.model_validate(data))
except Exception as exc:
console.print(f"[yellow]Skipping invalid JSON {f.name}: {exc}[/yellow]")
fmt = format.lower()
if fmt in ("parquet", "both") and container.parquet_exporter:
path = container.parquet_exporter.export(documents)
console.print(f"[green]✓ Parquet dataset exported to {path}[/green]")
if fmt in ("jsonl", "both") and container.jsonl_exporter:
path = container.jsonl_exporter.export(documents)
console.print(f"[green]✓ JSONL dataset exported to {path}[/green]")
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