def make_install_requirement(name, version, extras, markers, constraint=False):
"""make_install_requirement Generates an :class:`~pip._internal.req.req_install.InstallRequirement`.
Create an InstallRequirement from the supplied metadata.
:param name: The requirement's name.
:type name: str
:param version: The requirement version (must be pinned).
:type version: str.
:param extras: The desired extras.
:type extras: list[str]
:param markers: The desired markers, without a preceding semicolon.
:type markers: str
:param constraint: Whether to flag the requirement as a constraint, defaults to False.
:param constraint: bool, optional
:return: A generated InstallRequirement
:rtype: :class:`~pip._internal.req.req_install.InstallRequirement`
"""
# If no extras are specified, the extras string is blank
extras_string = ""
if extras:
# Sort extras for stability
extras_string = "[{}]".format(",".join(sorted(extras)))
if not markers:
return InstallRequirement.from_line(str('{}{}=={}'.format(
name, extras_string, version)),
constraint=constraint)
else:
return InstallRequirement.from_line(str('{}{}=={}; {}'.format(
name, extras_string, version, str(markers))),
constraint=constraint)
def as_ireq(self):
ireq_line = self.as_line(include_hashes=False)
if self.editable or self.req.editable:
if ireq_line.startswith("-e "):
ireq_line = ireq_line[len("-e "):]
ireq = InstallRequirement.from_editable(ireq_line)
else:
ireq = InstallRequirement.from_line(ireq_line)
if not getattr(ireq, "req", None):
ireq.req = self.req.req
else:
ireq.req.extras = self.req.req.extras
ireq.req.marker = self.req.req.marker
return ireq
def get_name(self):
loc = self.path or self.uri
if loc:
self._uri_scheme = "path" if self.path else "uri"
name = None
if self.link and self.link.egg_fragment:
return self.link.egg_fragment
elif self.link and self.link.is_wheel:
return Wheel(self.link.filename).name
if (self._uri_scheme != "uri" and self.path and self.setup_path
and self.setup_path.exists()):
from setuptools.dist import distutils
old_curdir = os.path.abspath(os.getcwd())
try:
os.chdir(str(self.setup_path.parent))
dist = distutils.core.run_setup(self.setup_path.as_posix())
name = dist.get_name()
except (FileNotFoundError, IOError) as e:
dist = None
except Exception as e:
from pip_shims.shims import InstallRequirement, make_abstract_dist
try:
if not isinstance(Path, self.path):
_path = Path(self.path)
else:
_path = self.path
if self.editable:
_ireq = InstallRequirement.from_editable(
_path.as_uri())
else:
_ireq = InstallRequirement.from_line(_path.as_posix())
dist = make_abstract_dist(_ireq).get_dist()
name = dist.project_name
except (TypeError, ValueError, AttributeError) as e:
dist = None
finally:
os.chdir(old_curdir)
hashed_loc = hashlib.sha256(loc.encode("utf-8")).hexdigest()
hashed_name = hashed_loc[-7:]
if not name or name == "UNKNOWN":
self._has_hashed_name = True
name = hashed_name
if self.link and not self._has_hashed_name:
self.link = Link("{0}#egg={1}".format(self.link.url, name))
return name