126 lines
3.6 KiB
Python
126 lines
3.6 KiB
Python
import glob
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import os
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class Path:
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'''
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I started to use pathlib.Path, but it was too much of a pain.
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'''
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def __init__(self, path):
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path = os.path.normpath(path)
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path = os.path.abspath(path)
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self.absolute_path = path
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def __contains__(self, other):
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this = os.path.normcase(self.absolute_path)
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that = os.path.normcase(other.absolute_path)
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return that.startswith(this)
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def __eq__(self, other):
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if not hasattr(other, 'absolute_path'):
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return False
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this = os.path.normcase(self.absolute_path)
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that = os.path.normcase(other.absolute_path)
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return this == that
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def __hash__(self):
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return hash(os.path.normcase(self.absolute_path))
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def __repr__(self):
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return '{c}({path})'.format(c=self.__class__.__name__, path=repr(self.absolute_path))
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@property
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def basename(self):
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return os.path.basename(self.absolute_path)
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def correct_case(self):
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self.absolute_path = get_path_casing(self.absolute_path)
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return self.absolute_path
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@property
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def exists(self):
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return os.path.exists(self.absolute_path)
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@property
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def is_dir(self):
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return os.path.isdir(self.absolute_path)
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@property
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def is_file(self):
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return os.path.isfile(self.absolute_path)
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@property
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def is_link(self):
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return os.path.islink(self.absolute_path)
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@property
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def parent(self):
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parent = os.path.dirname(self.absolute_path)
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parent = self.__class__(parent)
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return parent
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@property
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def relative_path(self):
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relative = self.absolute_path
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relative = relative.replace(os.getcwd(), '')
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relative = relative.lstrip(os.sep)
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return relative
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@property
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def size(self):
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if self.is_file:
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return os.path.getsize(self.absolute_path)
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else:
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return None
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@property
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def stat(self):
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return os.stat(self.absolute_path)
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def with_child(self, basename):
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basename = os.path.basename(basename)
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return Path(os.path.join(self.absolute_path, basename))
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def get_path_casing(path):
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'''
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Take what is perhaps incorrectly cased input and get the path's actual
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casing according to the filesystem.
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Thank you:
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Ethan Furman http://stackoverflow.com/a/7133137/5430534
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xvorsx http://stackoverflow.com/a/14742779/5430534
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'''
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if isinstance(path, Path):
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path = path.absolute_path
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(drive, subpath) = os.path.splitdrive(path)
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drive = drive.upper()
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subpath = subpath.lstrip(os.sep)
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pattern = [glob_patternize(piece) for piece in subpath.split(os.sep)]
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pattern = os.sep.join(pattern)
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pattern = drive + os.sep + pattern
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#print(pattern)
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try:
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return glob.glob(pattern)[0]
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except IndexError:
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return path
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def glob_patternize(piece):
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'''
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Create a pattern like "[u]ser" from "user", forcing glob to look up the
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correct path name, while guaranteeing that the only result will be the correct path.
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Special cases are:
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!, because in glob syntax, [!x] tells glob to look for paths that don't contain
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"x". [!] is invalid syntax, so we pick the first non-! character to put
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in the brackets.
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[, because this starts a capture group
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'''
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piece = glob.escape(piece)
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for character in piece:
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if character not in '![]':
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replacement = '[%s]' % character
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#print(piece, character, replacement)
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piece = piece.replace(character, replacement, 1)
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break
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return piece
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