def load_projectfile(cls, path, create=True, data=None):
"""Given a path, load or create the necessary lockfile.
:param str path: Path to the project root or lockfile
:param bool create: Whether to create the lockfile if not found, defaults to True
:raises OSError: Thrown if the project root directory doesn't exist
:raises FileNotFoundError: Thrown if the lockfile doesn't exist and ``create=False``
:return: A project file instance for the supplied project
:rtype: :class:`~requirementslib.models.project.ProjectFile`
"""
if not path:
path = os.curdir
path = Path(path).absolute()
project_path = path if path.is_dir() else path.parent
lockfile_path = path if path.is_file() else project_path / "Pipfile.lock"
if not project_path.exists():
raise OSError("Project does not exist: %s" % project_path.as_posix())
elif not lockfile_path.exists() and not create:
raise FileNotFoundError("Lockfile does not exist: %s" % lockfile_path.as_posix())
projectfile = cls.read_projectfile(lockfile_path.as_posix())
if not lockfile_path.exists():
if not data:
path_str = lockfile_path.as_posix()
if path_str[-5:] == ".lock":
pipfile = Path(path_str[:-5])
else:
pipfile = project_path.joinpath("Pipfile")
lf = cls.lockfile_from_pipfile(pipfile)
else:
lf = plette.lockfiles.Lockfile(data)
projectfile.model = lf
return projectfile
def load_projectfile(cls, path, create=False):
# type: (Text, bool) -> ProjectFile
"""
Given a path, load or create the necessary pipfile.
:param Text path: Path to the project root or pipfile
:param bool create: Whether to create the pipfile if not found, defaults to True
:raises OSError: Thrown if the project root directory doesn't exist
:raises FileNotFoundError: Thrown if the pipfile doesn't exist and ``create=False``
:return: A project file instance for the supplied project
:rtype: :class:`~requirementslib.models.project.ProjectFile`
"""
if not path:
raise RuntimeError(
"Must pass a path to classmethod 'Pipfile.load'")
if not isinstance(path, Path):
path = Path(path).absolute()
pipfile_path = path if path.is_file() else path.joinpath("Pipfile")
project_path = pipfile_path.parent
if not project_path.exists():
raise FileNotFoundError("%s is not a valid project path!" % path)
elif not pipfile_path.exists() or not pipfile_path.is_file():
if not create:
raise RequirementError("%s is not a valid Pipfile" %
pipfile_path)
return cls.read_projectfile(pipfile_path.as_posix())
def read(cls, location, model_cls, invalid_ok=False):
if not os.path.exists(location) and not invalid_ok:
raise FileNotFoundError(location)
try:
with io.open(location, encoding="utf-8") as f:
model = model_cls.load(f)
line_ending = preferred_newlines(f)
except Exception:
if not invalid_ok:
raise
model = None
line_ending = DEFAULT_NEWLINES
return cls(location=location, line_ending=line_ending, model=model)
