def handle_txn(unlink_link_transaction, prefix, args, newenv, remove_op=False):
if unlink_link_transaction.nothing_to_do:
if remove_op:
# No packages found to remove from environment
raise PackagesNotFoundError(args.package_names)
elif not newenv:
if context.json:
cli_common.stdout_json_success(
message="All requested packages already installed."
)
return
if context.dry_run:
actions = unlink_link_transaction._make_legacy_action_groups()[0]
if context.json:
cli_common.stdout_json_success(prefix=prefix, actions=actions, dry_run=True)
raise DryRunExit()
try:
unlink_link_transaction.download_and_extract()
if context.download_only:
raise CondaExitZero(
"Package caches prepared. UnlinkLinkTransaction cancelled with "
"--download-only option."
)
unlink_link_transaction.execute()
except SystemExit as e:
raise CondaSystemExit("Exiting", e)
if context.json:
actions = unlink_link_transaction._make_legacy_action_groups()[0]
cli_common.stdout_json_success(prefix=prefix, actions=actions)
def test_PackageNotFoundError(self):
package = "Potato"
with env_var("CONDA_JSON",
"yes",
stack_callback=conda_tests_ctxt_mgmt_def_pol):
with captured() as c:
exc = PackagesNotFoundError((package, ))
conda_exception_handler(_raise_helper, exc)
json_obj = json.loads(c.stdout)
assert not c.stderr
assert json_obj[
'exception_type'] == "<class 'conda.exceptions.PackagesNotFoundError'>"
assert json_obj['message'] == text_type(exc)
assert json_obj['error'] == repr(exc)
with env_var("CONDA_JSON",
"no",
stack_callback=conda_tests_ctxt_mgmt_def_pol):
with captured() as c:
conda_exception_handler(_raise_helper, exc)
assert not c.stdout
assert c.stderr.strip() == dals("""
PackagesNotFoundError: The following packages are missing from the target environment:
- Potato
""").strip()
def get_dists_for_spec(spec, emptyok=False):
# Here, spec should be a MatchSpec
res = groups[spec.name]
if not res and not emptyok:
raise PackagesNotFoundError((spec,))
return res