def _find_conda_deviations(self, prefix, env_spec):
try:
installed = conda_api.installed(prefix)
except conda_api.CondaError as e:
raise CondaManagerError(
"Conda failed while listing installed packages in %s: %s" %
(prefix, str(e)))
missing = set()
wrong_version = set()
for spec_string in env_spec.conda_packages_for_create:
spec = conda_api.parse_spec(spec_string)
name = spec.name
if name not in installed:
missing.add(name)
else:
def version_match(wanted, installed):
if wanted == installed:
return True
else:
return installed.startswith(wanted + ".")
# The only constraint we are smart enough to understand is
# the one we put in the lock file, which is plain =.
# We can't do version comparisons, which is a bug.
# We won't notice if non-= constraints are unmet.
(_, installed_version, installed_build) = installed[name]
if spec.exact_version is not None and not version_match(
spec.exact_version, installed_version):
wrong_version.add(name)
elif spec.exact_build_string is not None and not version_match(
spec.exact_build_string, installed_build):
wrong_version.add(name)
return (sorted(list(missing)), sorted(list(wrong_version)))
def check_installed(dirname):
installed = conda_api.installed(dirname)
assert dict() == installed
def test_installed_on_nonexistent_prefix():
installed = conda_api.installed("/this/does/not/exist")
assert dict() == installed
