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core: support '' for explicitly set empty path set

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This commit is contained in:
Dima Gerasimov 2020-06-01 23:45:26 +01:00
parent a267aeec5b
commit 3d7844b711
4 changed files with 16 additions and 7 deletions
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13
my/core/common.py
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@ -125,11 +125,16 @@ def get_files(pp: Paths, glob: str=DEFAULT_GLOB, sort: bool=True) -> Tuple[Path,
Tuple as return type is a bit friendlier for hashing/caching, so hopefully makes sense
"""
# TODO FIXME mm, some wrapper to assert iterator isn't empty?
sources: List[Path] = []
if isinstance(pp, (str, Path)):
sources.append(Path(pp))
sources: List[Path]
if isinstance(pp, Path):
sources = [pp]
elif isinstance(pp, str):
if pp == '':
# special case -- makes sense for optional data sources, etc
return () # early return to prevent warnings etc
sources = [Path(pp)]
else:
sources.extend(map(Path, pp))
sources = [Path(p) for p in pp]
def caller() -> str:
import traceback