Files
openfreemap/scripts/http_host/http_host_lib/download_tileset.py
2024-01-02 23:01:17 +01:00

43 lines
1.1 KiB
Python

import shutil
import subprocess
import sys
from pathlib import Path
import click
from http_host_lib.utils import download_file_aria2
def download_and_extract_tileset(area: str, version: str, runs_dir: Path) -> bool:
"""
returns True if downloaded something
"""
click.echo(f'Downloading: area: {area}, version: {version}')
version_dir = runs_dir / area / version
btrfs_file = version_dir / 'tiles.btrfs'
if btrfs_file.exists():
print('File exists, skipping download')
return False
temp_dir = runs_dir / '_tmp'
if temp_dir.exists():
sys.exit(f'{temp_dir} dir exists, avoiding parallel run')
temp_dir.mkdir(parents=True)
url = f'https://{area}.openfreemap.com/{version}/tiles.btrfs.gz'
target_file = temp_dir / 'tiles.btrfs.gz'
download_file_aria2(url, target_file)
subprocess.run(['unpigz', temp_dir / 'tiles.btrfs.gz'], check=True)
btrfs_src = temp_dir / 'tiles.btrfs'
shutil.rmtree(version_dir, ignore_errors=True)
version_dir.mkdir(parents=True)
btrfs_src.rename(btrfs_file)
shutil.rmtree(temp_dir)
return True