def _check_version_attributes(fetcher, pkg, version):
"""Ensure that the fetcher for a version is not ambiguous.
This assumes that we have already determined the fetcher for the
specific version using ``for_package_version()``
"""
all_optionals = set(a for s in all_strategies for a in s.optional_attrs)
args = pkg.versions[version]
extra = set(args) - set(fetcher.optional_attrs) - set([fetcher.url_attr])
extra.intersection_update(all_optionals)
if extra:
legal_attrs = [fetcher.url_attr] + list(fetcher.optional_attrs)
raise FetcherConflict(
"%s version '%s' has extra arguments: %s" %
(pkg.name, version, comma_and(quote(extra))),
"Valid arguments for a %s fetcher are: \n %s" %
(fetcher.url_attr, comma_and(quote(legal_attrs))))
def _check_version_attributes(fetcher, pkg, version):
"""Ensure that the fetcher for a version is not ambiguous.
This assumes that we have already determined the fetcher for the
specific version using ``for_package_version()``
"""
all_optionals = set(a for s in all_strategies for a in s.optional_attrs)
args = pkg.versions[version]
extra = set(args) - set(fetcher.optional_attrs) - set([fetcher.url_attr])
extra.intersection_update(all_optionals)
if extra:
legal_attrs = [fetcher.url_attr] + list(fetcher.optional_attrs)
raise FetcherConflict(
"%s version '%s' has extra arguments: %s"
% (pkg.name, version, comma_and(quote(extra))),
"Valid arguments for a %s fetcher are: \n %s"
% (fetcher.url_attr, comma_and(quote(legal_attrs))))
def check_pkg_attributes(pkg):
"""Find ambiguous top-level fetch attributes in a package.
Currently this only ensures that two or more VCS fetch strategies are
not specified at once.
"""
# a single package cannot have URL attributes for multiple VCS fetch
# strategies *unless* they are the same attribute.
conflicts = set(
[s.url_attr for s in all_strategies if hasattr(pkg, s.url_attr)])
# URL isn't a VCS fetch method. We can use it with a VCS method.
conflicts -= set(['url'])
if len(conflicts) > 1:
raise FetcherConflict(
'Package %s cannot specify %s together. Pick at most one.' %
(pkg.name, comma_and(quote(conflicts))))
def check_pkg_attributes(pkg):
"""Find ambiguous top-level fetch attributes in a package.
Currently this only ensures that two or more VCS fetch strategies are
not specified at once.
"""
# a single package cannot have URL attributes for multiple VCS fetch
# strategies *unless* they are the same attribute.
conflicts = set([s.url_attr for s in all_strategies
if hasattr(pkg, s.url_attr)])
# URL isn't a VCS fetch method. We can use it with a VCS method.
conflicts -= set(['url'])
if len(conflicts) > 1:
raise FetcherConflict(
'Package %s cannot specify %s together. Pick at most one.'
% (pkg.name, comma_and(quote(conflicts))))
