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import logging
from pip._internal.models.direct_url import (
DIRECT_URL_METADATA_NAME,
ArchiveInfo,
DirectUrl,
DirectUrlValidationError,
DirInfo,
VcsInfo,
)
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
from pip._internal.vcs import vcs
try:
from json import JSONDecodeError
except ImportError:
# PY2
JSONDecodeError = ValueError # type: ignore
if MYPY_CHECK_RUNNING:
from typing import Optional
from pip._vendor.pkg_resources import Distribution
from pip._internal.models.link import Link
logger = logging.getLogger(__name__)
def direct_url_as_pep440_direct_reference(direct_url, name):
# type: (DirectUrl, str) -> str
"""Convert a DirectUrl to a pip requirement string."""
direct_url.validate() # if invalid, this is a pip bug
requirement = name + " @ "
fragments = []
if isinstance(direct_url.info, VcsInfo):
requirement += "{}+{}@{}".format(
direct_url.info.vcs, direct_url.url, direct_url.info.commit_id
)
elif isinstance(direct_url.info, ArchiveInfo):
requirement += direct_url.url
if direct_url.info.hash:
fragments.append(direct_url.info.hash)
else:
assert isinstance(direct_url.info, DirInfo)
requirement += direct_url.url
if direct_url.subdirectory:
fragments.append("subdirectory=" + direct_url.subdirectory)
if fragments:
requirement += "#" + "&".join(fragments)
return requirement
def direct_url_from_link(link, source_dir=None, link_is_in_wheel_cache=False):
# type: (Link, Optional[str], bool) -> DirectUrl
if link.is_vcs:
vcs_backend = vcs.get_backend_for_scheme(link.scheme)
assert vcs_backend
url, requested_revision, _ = (
vcs_backend.get_url_rev_and_auth(link.url_without_fragment)
)
# For VCS links, we need to find out and add commit_id.
if link_is_in_wheel_cache:
# If the requested VCS link corresponds to a cached
# wheel, it means the requested revision was an
# immutable commit hash, otherwise it would not have
# been cached. In that case we don't have a source_dir
# with the VCS checkout.
assert requested_revision
commit_id = requested_revision
else:
# If the wheel was not in cache, it means we have
# had to checkout from VCS to build and we have a source_dir
# which we can inspect to find out the commit id.
assert source_dir
commit_id = vcs_backend.get_revision(source_dir)
return DirectUrl(
url=url,
info=VcsInfo(
vcs=vcs_backend.name,
commit_id=commit_id,
requested_revision=requested_revision,
),
subdirectory=link.subdirectory_fragment,
)
elif link.is_existing_dir():
return DirectUrl(
url=link.url_without_fragment,
info=DirInfo(),
subdirectory=link.subdirectory_fragment,
)
else:
hash = None
hash_name = link.hash_name
if hash_name:
hash = "{}={}".format(hash_name, link.hash)
return DirectUrl(
url=link.url_without_fragment,
info=ArchiveInfo(hash=hash),
subdirectory=link.subdirectory_fragment,
)
def dist_get_direct_url(dist):
# type: (Distribution) -> Optional[DirectUrl]
"""Obtain a DirectUrl from a pkg_resource.Distribution.
Returns None if the distribution has no `direct_url.json` metadata,
or if `direct_url.json` is invalid.
"""
if not dist.has_metadata(DIRECT_URL_METADATA_NAME):
return None
try:
return DirectUrl.from_json(dist.get_metadata(DIRECT_URL_METADATA_NAME))
except (
DirectUrlValidationError,
JSONDecodeError,
UnicodeDecodeError
) as e:
logger.warning(
"Error parsing %s for %s: %s",
DIRECT_URL_METADATA_NAME,
dist.project_name,
e,
)
return None