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Made parser.write and parser.parse's file-seeking approach case-insensitive for every systems. #16

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Made parser.write and parser.parse's file-seeking approach case-insensitive for every systems. #16

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23 changes: 17 additions & 6 deletions src/pyfomod/parser.py
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Original file line number Diff line number Diff line change
Expand Up @@ -254,16 +254,27 @@ def _iterparse(file_path, target):
target.end(element.tag)
return target.close()

def get_case_insensitive_path(parent_path: Path, file: str):
"""
Returns a `Path` object matching `parent_path/file`, using `file`'s actual casing "on disk".
Works on case-sensitive systems where `file`'s casing may differs from the provided value.

Returns a `Path` object for `parent_path/file` if no match could be found.
"""
for candidate_file in os.listdir(parent_path):
if candidate_file.lower() == file.lower():
return parent_path / candidate_file
return parent_path / file

def parse(source, warnings=None, lineno=False):
if isinstance(source, (tuple, list)):
info, conf = source
else:
path = Path(source) / "fomod"
path = get_case_insensitive_path(source, "fomod")
if not path.is_dir():
raise FileNotFoundError(errno.ENOENT, os.strerror(errno.ENOENT), "fomod")
info = path / "info.xml"
conf = path / "moduleconfig.xml"
info = get_case_insensitive_path(path, "info.xml")
conf = get_case_insensitive_path(path, "moduleconfig.xml")
if not info.is_file():
info = None
else:
Expand Down Expand Up @@ -302,10 +313,10 @@ def write(root, path):
info = Path(info)
conf = Path(path[1])
else:
path = Path(path) / "fomod"
path = get_case_insensitive_path(Path(path), "fomod")
path.mkdir(parents=True, exist_ok=True)
info = path / "info.xml"
conf = path / "moduleconfig.xml"
info = get_case_insensitive_path(path, "info.xml")
conf = get_case_insensitive_path(path, "moduleconfig.xml")
if info is not None:
with info.open("w") as info_f:
info_f.write(root._info.to_string())
Expand Down