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Viewing File: direct_url.py
""" PEP 610 """
import json
import re
from pip._vendor import six
from pip._vendor.six.moves.urllib import parse as urllib_parse
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
if MYPY_CHECK_RUNNING:
from typing import Any, Dict, Iterable, Optional, Type, TypeVar, Union
T = TypeVar("T")
DIRECT_URL_METADATA_NAME = "direct_url.json"
ENV_VAR_RE = re.compile(r"^\$\{[A-Za-z0-9-_]+\}(:\$\{[A-Za-z0-9-_]+\})?$")
__all__ = [
"DirectUrl",
"DirectUrlValidationError",
"DirInfo",
"ArchiveInfo",
"VcsInfo",
]
class DirectUrlValidationError(Exception):
pass
def _get(d, expected_type, key, default=None):
# type: (Dict[str, Any], Type[T], str, Optional[T]) -> Optional[T]
"""Get value from dictionary and verify expected type."""
if key not in d:
return default
value = d[key]
if six.PY2 and expected_type is str:
expected_type = six.string_types # type: ignore
if not isinstance(value, expected_type):
raise DirectUrlValidationError(
"{!r} has unexpected type for {} (expected {})".format(
value, key, expected_type
)
)
return value
def _get_required(d, expected_type, key, default=None):
# type: (Dict[str, Any], Type[T], str, Optional[T]) -> T
value = _get(d, expected_type, key, default)
if value is None:
raise DirectUrlValidationError("{} must have a value".format(key))
return value
def _exactly_one_of(infos):
# type: (Iterable[Optional[InfoType]]) -> InfoType
infos = [info for info in infos if info is not None]
if not infos:
raise DirectUrlValidationError(
"missing one of archive_info, dir_info, vcs_info"
)
if len(infos) > 1:
raise DirectUrlValidationError(
"more than one of archive_info, dir_info, vcs_info"
)
assert infos[0] is not None
return infos[0]
def _filter_none(**kwargs):
# type: (Any) -> Dict[str, Any]
"""Make dict excluding None values."""
return {k: v for k, v in kwargs.items() if v is not None}
class VcsInfo(object):
name = "vcs_info"
def __init__(
self,
vcs, # type: str
commit_id, # type: str
requested_revision=None, # type: Optional[str]
resolved_revision=None, # type: Optional[str]
resolved_revision_type=None, # type: Optional[str]
):
self.vcs = vcs
self.requested_revision = requested_revision
self.commit_id = commit_id
self.resolved_revision = resolved_revision
self.resolved_revision_type = resolved_revision_type
@classmethod
def _from_dict(cls, d):
# type: (Optional[Dict[str, Any]]) -> Optional[VcsInfo]
if d is None:
return None
return cls(
vcs=_get_required(d, str, "vcs"),
commit_id=_get_required(d, str, "commit_id"),
requested_revision=_get(d, str, "requested_revision"),
resolved_revision=_get(d, str, "resolved_revision"),
resolved_revision_type=_get(d, str, "resolved_revision_type"),
)
def _to_dict(self):
# type: () -> Dict[str, Any]
return _filter_none(
vcs=self.vcs,
requested_revision=self.requested_revision,
commit_id=self.commit_id,
resolved_revision=self.resolved_revision,
resolved_revision_type=self.resolved_revision_type,
)
class ArchiveInfo(object):
name = "archive_info"
def __init__(
self,
hash=None, # type: Optional[str]
):
self.hash = hash
@classmethod
def _from_dict(cls, d):
# type: (Optional[Dict[str, Any]]) -> Optional[ArchiveInfo]
if d is None:
return None
return cls(hash=_get(d, str, "hash"))
def _to_dict(self):
# type: () -> Dict[str, Any]
return _filter_none(hash=self.hash)
class DirInfo(object):
name = "dir_info"
def __init__(
self,
editable=False, # type: bool
):
self.editable = editable
@classmethod
def _from_dict(cls, d):
# type: (Optional[Dict[str, Any]]) -> Optional[DirInfo]
if d is None:
return None
return cls(
editable=_get_required(d, bool, "editable", default=False)
)
def _to_dict(self):
# type: () -> Dict[str, Any]
return _filter_none(editable=self.editable or None)
if MYPY_CHECK_RUNNING:
InfoType = Union[ArchiveInfo, DirInfo, VcsInfo]
class DirectUrl(object):
def __init__(
self,
url, # type: str
info, # type: InfoType
subdirectory=None, # type: Optional[str]
):
self.url = url
self.info = info
self.subdirectory = subdirectory
def _remove_auth_from_netloc(self, netloc):
# type: (str) -> str
if "@" not in netloc:
return netloc
user_pass, netloc_no_user_pass = netloc.split("@", 1)
if (
isinstance(self.info, VcsInfo) and
self.info.vcs == "git" and
user_pass == "git"
):
return netloc
if ENV_VAR_RE.match(user_pass):
return netloc
return netloc_no_user_pass
@property
def redacted_url(self):
# type: () -> str
"""url with user:password part removed unless it is formed with
environment variables as specified in PEP 610, or it is ``git``
in the case of a git URL.
"""
purl = urllib_parse.urlsplit(self.url)
netloc = self._remove_auth_from_netloc(purl.netloc)
surl = urllib_parse.urlunsplit(
(purl.scheme, netloc, purl.path, purl.query, purl.fragment)
)
return surl
def validate(self):
# type: () -> None
self.from_dict(self.to_dict())
@classmethod
def from_dict(cls, d):
# type: (Dict[str, Any]) -> DirectUrl
return DirectUrl(
url=_get_required(d, str, "url"),
subdirectory=_get(d, str, "subdirectory"),
info=_exactly_one_of(
[
ArchiveInfo._from_dict(_get(d, dict, "archive_info")),
DirInfo._from_dict(_get(d, dict, "dir_info")),
VcsInfo._from_dict(_get(d, dict, "vcs_info")),
]
),
)
def to_dict(self):
# type: () -> Dict[str, Any]
res = _filter_none(
url=self.redacted_url,
subdirectory=self.subdirectory,
)
res[self.info.name] = self.info._to_dict()
return res
@classmethod
def from_json(cls, s):
# type: (str) -> DirectUrl
return cls.from_dict(json.loads(s))
def to_json(self):
# type: () -> str
return json.dumps(self.to_dict(), sort_keys=True)
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