def prepare_editable_requirement(
self,
req, # type: InstallRequirement
require_hashes, # type: bool
use_user_site, # type: bool
finder, # type: PackageFinder
):
# type: (...) -> AbstractDistribution
"""Prepare an editable requirement"""
assert req.editable, "cannot prepare a non-editable req as editable"
logger.info("Obtaining %s", req)
with indent_log():
if require_hashes:
raise InstallationError(
"The editable requirement %s cannot be installed when "
"requiring hashes, because there is no single file to "
"hash." % req)
req.ensure_has_source_dir(self.src_dir)
req.update_editable(not self._download_should_save)
abstract_dist = make_distribution_for_install_requirement(req)
with self.req_tracker.track(req):
abstract_dist.prepare_distribution_metadata(
finder,
self.build_isolation,
)
if self._download_should_save:
req.archive(self.download_dir)
req.check_if_exists(use_user_site)
return abstract_dist
def _get_prepared_distribution(req, req_tracker, finder, build_isolation):
"""Prepare a distribution for installation.
"""
abstract_dist = make_distribution_for_install_requirement(req)
with req_tracker.track(req):
abstract_dist.prepare_distribution_metadata(finder, build_isolation)
return abstract_dist
def _simulate_installation_of(to_install, package_set):
# type: (List[InstallRequirement], PackageSet) -> Set[str]
"""Computes the version of packages after installing to_install.
"""
# Keep track of packages that were installed
installed = set()
# Modify it as installing requirement_set would (assuming no errors)
for inst_req in to_install:
abstract_dist = make_distribution_for_install_requirement(inst_req)
dist = abstract_dist.get_pkg_resources_distribution()
assert dist is not None
name = canonicalize_name(dist.key)
package_set[name] = PackageDetails(dist.version, dist.requires())
installed.add(name)
return installed
def _get_prepared_distribution(
req: InstallRequirement,
req_tracker: RequirementTracker,
finder: PackageFinder,
build_isolation: bool,
) -> BaseDistribution:
"""Prepare a distribution for installation."""
abstract_dist = make_distribution_for_install_requirement(req)
with req_tracker.track(req):
abstract_dist.prepare_distribution_metadata(finder, build_isolation)
return abstract_dist.get_metadata_distribution()
def _get_prepared_distribution(
req, # type: InstallRequirement
req_tracker, # type: RequirementTracker
finder, # type: PackageFinder
build_isolation, # type: bool
):
# type: (...) -> Distribution
"""Prepare a distribution for installation."""
abstract_dist = make_distribution_for_install_requirement(req)
with req_tracker.track(req):
abstract_dist.prepare_distribution_metadata(finder, build_isolation)
return abstract_dist.get_pkg_resources_distribution()
def _simulate_installation_of(to_install, package_set):
# type: (List[InstallRequirement], PackageSet) -> Set[str]
"""Computes the version of packages after installing to_install.
"""
# Keep track of packages that were installed
installed = set()
# Modify it as installing requirement_set would (assuming no errors)
for inst_req in to_install:
abstract_dist = make_distribution_for_install_requirement(inst_req)
dist = abstract_dist.get_pkg_resources_distribution()
def _simulate_installation_of(to_install: List[InstallRequirement],
package_set: PackageSet) -> Set[NormalizedName]:
"""Computes the version of packages after installing to_install."""
# Keep track of packages that were installed
installed = set()
# Modify it as installing requirement_set would (assuming no errors)
for inst_req in to_install:
abstract_dist = make_distribution_for_install_requirement(inst_req)
dist = abstract_dist.get_metadata_distribution()
name = dist.canonical_name
package_set[name] = PackageDetails(dist.version,
list(dist.iter_dependencies()))
installed.add(name)
return installed
def prepare_linked_requirement(
self,
req, # type: InstallRequirement
session, # type: PipSession
finder, # type: PackageFinder
upgrade_allowed, # type: bool
require_hashes, # type: bool
):
# type: (...) -> AbstractDistribution
"""Prepare a requirement that would be obtained from req.link"""
# TODO: Breakup into smaller functions
if req.link and req.link.scheme == "file":
path = url_to_path(req.link.url)
logger.info("Processing %s", display_path(path))
else:
logger.info("Collecting %s", req)
with indent_log():
# @@ if filesystem packages are not marked
# editable in a req, a non deterministic error
# occurs when the script attempts to unpack the
# build directory
req.ensure_has_source_dir(self.build_dir)
# If a checkout exists, it's unwise to keep going. version
# inconsistencies are logged later, but do not fail the
# installation.
# FIXME: this won't upgrade when there's an existing
# package unpacked in `req.source_dir`
# package unpacked in `req.source_dir`
if os.path.exists(os.path.join(req.source_dir, "setup.py")):
raise PreviousBuildDirError(
"pip can't proceed with requirements '%s' due to a"
" pre-existing build directory (%s). This is "
"likely due to a previous installation that failed"
". pip is being responsible and not assuming it "
"can delete this. Please delete it and try again." %
(req, req.source_dir))
req.populate_link(finder, upgrade_allowed, require_hashes)
# We can't hit this spot and have populate_link return None.
# req.satisfied_by is None here (because we're
# guarded) and upgrade has no impact except when satisfied_by
# is not None.
# Then inside find_requirement existing_applicable -> False
# If no new versions are found, DistributionNotFound is raised,
# otherwise a result is guaranteed.
assert req.link
link = req.link
# Now that we have the real link, we can tell what kind of
# requirements we have and raise some more informative errors
# than otherwise. (For example, we can raise VcsHashUnsupported
# for a VCS URL rather than HashMissing.)
if require_hashes:
# We could check these first 2 conditions inside
# unpack_url and save repetition of conditions, but then
# we would report less-useful error messages for
# unhashable requirements, complaining that there's no
# hash provided.
if is_vcs_url(link):
raise VcsHashUnsupported()
elif is_file_url(link) and is_dir_url(link):
raise DirectoryUrlHashUnsupported()
if not req.original_link and not req.is_pinned:
# Unpinned packages are asking for trouble when a new
# version is uploaded. This isn't a security check, but
# it saves users a surprising hash mismatch in the
# future.
#
# file:/// URLs aren't pinnable, so don't complain
# about them not being pinned.
raise HashUnpinned()
hashes = req.hashes(trust_internet=not require_hashes)
if require_hashes and not hashes:
# Known-good hashes are missing for this requirement, so
# shim it with a facade object that will provoke hash
# computation and then raise a HashMissing exception
# showing the user what the hash should be.
hashes = MissingHashes()
try:
download_dir = self.download_dir
# We always delete unpacked sdists after pip ran.
autodelete_unpacked = True
if req.link.is_wheel and self.wheel_download_dir:
# when doing 'pip wheel` we download wheels to a
# dedicated dir.
download_dir = self.wheel_download_dir
if req.link.is_wheel:
if download_dir:
# When downloading, we only unpack wheels to get
# metadata.
autodelete_unpacked = True
else:
# When installing a wheel, we use the unpacked
# wheel.
autodelete_unpacked = False
unpack_url(
req.link,
req.source_dir,
download_dir,
autodelete_unpacked,
session=session,
hashes=hashes,
progress_bar=self.progress_bar,
)
except requests.HTTPError as exc:
logger.critical(
"Could not install requirement %s because of error %s",
req,
exc,
)
raise InstallationError(
"Could not install requirement %s because of HTTP "
"error %s for URL %s" % (req, exc, req.link))
abstract_dist = make_distribution_for_install_requirement(req)
with self.req_tracker.track(req):
abstract_dist.prepare_distribution_metadata(
finder,
self.build_isolation,
)
if self._download_should_save:
# Make a .zip of the source_dir we already created.
if not req.link.is_artifact:
req.archive(self.download_dir)
return abstract_dist
)
)
def _simulate_installation_of(to_install, package_set):
# type: (List[InstallRequirement], PackageSet) -> Set[str]
"""Computes the version of packages after installing to_install.
"""
# Keep track of packages that were installed
installed = set()
# Modify it as installing requirement_set would (assuming no errors)
for inst_req in to_install:
<<<<<<< HEAD
abstract_dist = make_distribution_for_install_requirement(inst_req)
dist = abstract_dist.get_pkg_resources_distribution()
=======
dist = make_abstract_dist(inst_req).dist()
>>>>>>> 71358189c5e72ee2ac9883b408a2f540a7f5745e
name = canonicalize_name(dist.key)
package_set[name] = PackageDetails(dist.version, dist.requires())
installed.add(name)
return installed
def _create_whitelist(would_be_installed, package_set):
# type: (Set[str], PackageSet) -> Set[str]
