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dir_entry_path.py
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dir_entry_path.py
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"""
pathlib revised
~~~~~~~~~~~~~~~
:copyleft: 2016 by the pathlib_revised team, see AUTHORS for more details.
:license: GNU GPL v3 or above, see LICENSE for more details.
"""
# pathlib_revised
from pathlib_revised.pathlib import Path2
class DirEntryPath:
"""
A Path2() instance from a os.DirEntry() instance that
holds some more cached information.
e.g.:
* junction under windows:
self.is_symlink = False
self.different_path = True
self.resolved_path = Path2() instance from junction destination
* broken junction under windows:
self.is_symlink = False
self.different_path = True
self.resolved_path = None
self.resolve_error: contains the Error instance
* symlink under linux:
self.is_symlink = True
self.different_path = True
self.resolved_path = Path2() instance from symlink destination
self.resolve_error = None
* broken symlink under linux:
self.is_symlink = True
self.different_path = True
self.resolved_path = None
self.resolve_error: contains the Error instance
"""
def __init__(self, path, onerror=print):
self.path_instance = Path2(path)
self.path = str(self.path_instance)
self.is_symlink = self.path_instance.is_symlink()
self.is_file = self.path_instance.is_file()
self.is_dir = self.path_instance.is_dir()
self.stat = self.path_instance.stat()
try:
self.resolved_path = self.path_instance.resolve()
except (PermissionError, FileNotFoundError) as err:
onerror("Resolve %r error: %s" % (self.path, err))
self.resolved_path = None
self.resolve_error = err
else:
self.resolve_error = None
if self.resolved_path is None:
# e.g.: broken symlink under linux
self.different_path = True
else:
# e.g.: a junction under windows
# https://www.python-forum.de/viewtopic.php?f=1&t=37725&p=290429#p290428 (de)
self.different_path = self.path_instance.path != self.resolved_path.path
def pformat(self):
return "\n".join((
" *** %s :" % self,
"path...........: %r" % self.path,
"path instance..: %r" % self.path_instance,
"resolved path..: %r" % self.resolved_path,
"resolve error..: %r" % self.resolve_error,
"different path.: %r" % self.different_path,
"is symlink.....: %r" % self.is_symlink,
"is file........: %r" % self.is_file,
"is dir.........: %r" % self.is_dir,
"stat.size......: %r" % self.stat.st_size,
))
def __str__(self):
return "<DirEntryPath %s>" % self.path_instance