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Issue #62: add cache path option.

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This commit is contained in:
Sergey Vartanov 2021-07-08 01:52:24 +03:00
parent 376087949a
commit e18419cc3a
4 changed files with 19 additions and 8 deletions
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10
roentgen/osm_getter.py
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@ -15,14 +15,17 @@ __author__ = "Sergey Vartanov"
__email__ = "me@enzet.ru"
def get_osm(boundary_box: str, to_update: bool = False) -> Optional[str]:
def get_osm(
boundary_box: str, cache_path: Path, to_update: bool = False
) -> Optional[str]:
"""
Download OSM data from the web or get if from the cache.
:param boundary_box: borders of the map part to download
:param cache_path: cache directory to store downloaded OSM files
:param to_update: update cache files
"""
result_file_name: Path = "map" / Path(boundary_box + ".osm")
result_file_name: Path = cache_path / f"{boundary_box}.osm"
if not to_update and result_file_name.is_file():
return result_file_name.open().read()
@ -30,7 +33,8 @@ def get_osm(boundary_box: str, to_update: bool = False) -> Optional[str]:
matcher = re.match(
"(?P<left>[0-9.-]*),(?P<bottom>[0-9.-]*)," +
"(?P<right>[0-9.-]*),(?P<top>[0-9.-]*)",
boundary_box)
boundary_box
)
if not matcher:
error("invalid boundary box")