def _abspath(self, first_is_basedir: bool = False) -> str:
""" Return the absolute path of the current crumb path.
Parameters
----------
first_is_basedir: bool
If True and the current crumb path starts with a crumb argument and first_is_basedir,
the first argument will be replaced by the absolute path to the current dir,
otherwise the absolute path to the current dir will be added as a prefix.
Returns
-------
abspath: str
"""
if os.path.isabs(self._path):
return self._path
splits = self._path.split(os.path.sep)
basedir = [os.path.abspath(os.path.curdir)]
if _is_crumb_arg(splits[0]):
if first_is_basedir:
splits.pop(0)
basedir.extend(splits)
return os.path.sep.join(basedir)
def test_split(crumb):
splt = crumb.split()
for s in splt:
if os.path.isdir(s):
assert os.path.exists(s)
else:
assert _is_crumb_arg(s) or isinstance(s, str)
def test_split(crumb):
splt = crumb.split()
for s in splt:
if op.isdir(s):
assert op.exists(s)
else:
assert _is_crumb_arg(s) or isinstance(s, string_types)
def test_arg_name():
assert not _is_crumb_arg(Path(os.path.expanduser('~')))
def test_arg_name():
assert not _is_crumb_arg(Path(op.expanduser('~')))
def is_crumb_arg(crumb_arg):
""" Return True if `crumb_arg` is a well formed crumb argument, i.e.,
is a string that starts with `start_sym` and ends with `end_sym`.
False otherwise.
"""
return _is_crumb_arg(crumb_arg)
