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from __future__ import annotations
from pathlib import Path
from typing import cast
from packaging.requirements import InvalidRequirement, Requirement
from tox.config.cli.parser import DEFAULT_VERBOSITY, Parsed, ToxParser
from tox.config.loader.memory import MemoryLoader
from tox.config.set_env import SetEnv
from tox.plugin import impl
from tox.session.cmd.run.common import env_run_create_flags
from tox.session.cmd.run.parallel import OFF_VALUE, parallel_flags, run_parallel
from tox.session.cmd.run.sequential import run_sequential
from tox.session.state import State
from tox.tox_env.python.pip.req_file import PythonDeps
from ..env_select import CliEnv, EnvSelector, register_env_select_flags
from .devenv import devenv
from .list_env import list_env
from .show_config import show_config
@impl
def tox_add_option(parser: ToxParser) -> None:
our = parser.add_command("legacy", ["le"], "legacy entry-point command", legacy)
our.add_argument("--help-ini", "--hi", action="store_true", help="show live configuration", dest="show_config")
our.add_argument(
"--showconfig",
action="store_true",
help="show live configuration (by default all env, with -l only default targets, specific via TOXENV/-e)",
dest="show_config",
)
our.add_argument(
"-a",
"--listenvs-all",
action="store_true",
help="show list of all defined environments (with description if verbose)",
dest="list_envs_all",
)
our.add_argument(
"-l",
"--listenvs",
action="store_true",
help="show list of test environments (with description if verbose)",
dest="list_envs",
)
our.add_argument(
"--devenv",
help="sets up a development environment at ENVDIR based on the env's tox configuration specified by"
"`-e` (-e defaults to py)",
dest="devenv_path",
metavar="ENVDIR",
default=None,
of_type=Path,
)
register_env_select_flags(our, default=CliEnv())
env_run_create_flags(our, mode="legacy")
parallel_flags(our, default_parallel=OFF_VALUE, no_args=True)
our.add_argument(
"--pre",
action="store_true",
help="deprecated use PIP_PRE in set_env instead - install pre-releases and development versions of"
"dependencies; this will set PIP_PRE=1 environment variable",
)
our.add_argument(
"--force-dep",
action="append",
metavar="req",
default=[],
help="Forces a certain version of one of the dependencies when configuring the virtual environment. REQ "
"Examples 'pytest<6.1' or 'django>=2.2'.",
type=Requirement,
)
our.add_argument(
"--sitepackages",
action="store_true",
help="deprecated use VIRTUALENV_SYSTEM_SITE_PACKAGES=1, override sitepackages setting to True in all envs",
dest="site_packages",
)
our.add_argument(
"--alwayscopy",
action="store_true",
help="deprecated use VIRTUALENV_ALWAYS_COPY=1, override always copy setting to True in all envs",
dest="always_copy",
)
def legacy(state: State) -> int:
option = state.conf.options
if option.show_config:
option.list_keys_only = []
option.show_core = not bool(option.env)
if option.list_envs or option.list_envs_all:
state.envs.on_empty_fallback_py = False
option.list_no_description = option.verbosity <= DEFAULT_VERBOSITY
option.list_default_only = not option.list_envs_all
option.show_core = False
_handle_legacy_only_flags(option, state.envs)
if option.show_config:
return show_config(state)
if option.list_envs or option.list_envs_all:
return list_env(state)
if option.devenv_path:
option.devenv_path = Path(option.devenv_path)
option.env = option.env or CliEnv("py")
return devenv(state)
if option.parallel != 0: # only 0 means sequential
return run_parallel(state)
return run_sequential(state)
def _handle_legacy_only_flags(option: Parsed, envs: EnvSelector) -> None:
override = {}
if getattr(option, "site_packages", False):
override["system_site_packages"] = True
if getattr(option, "always_copy", False):
override["always_copy"] = True
set_env = {}
if getattr(option, "pre", False):
set_env["PIP_PRE"] = "1"
forced = {j.name: j for j in getattr(option, "force_dep", [])}
if override or set_env or forced:
for env in envs.iter(only_active=True, package=False):
env_conf = envs[env].conf
if override:
env_conf.loaders.insert(0, MemoryLoader(**override))
if set_env:
cast(SetEnv, env_conf["set_env"]).update(set_env, override=True)
if forced:
to_force = forced.copy()
deps = cast(PythonDeps, env_conf["deps"])
as_root_args = deps.as_root_args
for at, entry in enumerate(as_root_args):
try:
req = Requirement(entry)
except InvalidRequirement:
continue
if req.name in to_force:
as_root_args[at] = str(to_force[req.name])
del to_force[req.name]
as_root_args.extend(str(v) for v in to_force.values())
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