# Copyright (C) 2012 Anaconda, Inc
# SPDX-License-Identifier: BSD-3-Clause
from __future__ import annotations
import os
import platform
import struct
import sys
from contextlib import contextmanager
from errno import ENOENT
from functools import lru_cache
from itertools import chain
from logging import getLogger
from os.path import abspath, expanduser, isdir, isfile, join
from os.path import split as path_split
try:
from boltons.setutils import IndexedSet
except ImportError: # pragma: no cover
from .._vendor.boltons.setutils import IndexedSet
from .. import CONDA_SOURCE_ROOT
from .. import __version__ as CONDA_VERSION
from .._vendor.appdirs import user_data_dir
from .._vendor.frozendict import frozendict
from ..auxlib.decorators import memoizedproperty
from ..auxlib.ish import dals
from ..common._os.linux import linux_get_libc_version
from ..common.compat import NoneType, on_win
from ..common.configuration import (
Configuration,
ConfigurationLoadError,
MapParameter,
ParameterLoader,
PrimitiveParameter,
SequenceParameter,
ValidationError,
)
from ..common.iterators import unique
from ..common.path import expand, paths_equal
from ..common.url import has_scheme, path_to_url, split_scheme_auth_token
from ..deprecations import deprecated
from .constants import (
APP_NAME,
DEFAULT_AGGRESSIVE_UPDATE_PACKAGES,
DEFAULT_CHANNEL_ALIAS,
DEFAULT_CHANNELS,
DEFAULT_CHANNELS_UNIX,
DEFAULT_CHANNELS_WIN,
DEFAULT_CUSTOM_CHANNELS,
DEFAULT_SOLVER,
DEFAULTS_CHANNEL_NAME,
ERROR_UPLOAD_URL,
KNOWN_SUBDIRS,
PREFIX_MAGIC_FILE,
PREFIX_NAME_DISALLOWED_CHARS,
REPODATA_FN,
ROOT_ENV_NAME,
SEARCH_PATH,
ChannelPriority,
DepsModifier,
PathConflict,
SafetyChecks,
SatSolverChoice,
UpdateModifier,
)
try:
os.getcwd()
except OSError as e:
if e.errno == ENOENT:
# FileNotFoundError can occur when cwd has been deleted out from underneath the process.
# To resolve #6584, let's go with setting cwd to sys.prefix, and see how far we get.
os.chdir(sys.prefix)
else:
raise
log = getLogger(__name__)
_platform_map = {
"linux2": "linux",
"linux": "linux",
"darwin": "osx",
"win32": "win",
"zos": "zos",
}
non_x86_machines = {
"armv6l",
"armv7l",
"aarch64",
"arm64",
"ppc64",
"ppc64le",
"riscv64",
"s390x",
}
_arch_names = {
32: "x86",
64: "x86_64",
}
user_rc_path = abspath(expanduser("~/.condarc"))
sys_rc_path = join(sys.prefix, ".condarc")
def mockable_context_envs_dirs(root_writable, root_prefix, _envs_dirs):
if root_writable:
fixed_dirs = [
join(root_prefix, "envs"),
join("~", ".conda", "envs"),
]
else:
fixed_dirs = [
join("~", ".conda", "envs"),
join(root_prefix, "envs"),
]
if on_win:
fixed_dirs.append(join(user_data_dir(APP_NAME, APP_NAME), "envs"))
return tuple(IndexedSet(expand(path) for path in (*_envs_dirs, *fixed_dirs)))
def channel_alias_validation(value):
if value and not has_scheme(value):
return "channel_alias value '%s' must have scheme/protocol." % value
return True
def default_python_default():
ver = sys.version_info
return "%d.%d" % (ver.major, ver.minor)
def default_python_validation(value):
if value:
if len(value) >= 3 and value[1] == ".":
try:
value = float(value)
if 2.0 <= value < 4.0:
return True
except ValueError: # pragma: no cover
pass
else:
# Set to None or '' meaning no python pinning
return True
return "default_python value '%s' not of the form '[23].[0-9][0-9]?' or ''" % value
def ssl_verify_validation(value):
if isinstance(value, str):
if not isfile(value) and not isdir(value):
return (
"ssl_verify value '%s' must be a boolean, a path to a "
"certificate bundle file, or a path to a directory containing "
"certificates of trusted CAs." % value
)
return True
class Context(Configuration):
add_pip_as_python_dependency = ParameterLoader(PrimitiveParameter(True))
allow_conda_downgrades = ParameterLoader(PrimitiveParameter(False))
# allow cyclical dependencies, or raise
allow_cycles = ParameterLoader(PrimitiveParameter(True))
allow_softlinks = ParameterLoader(PrimitiveParameter(False))
auto_update_conda = ParameterLoader(
PrimitiveParameter(True), aliases=("self_update",)
)
auto_activate_base = ParameterLoader(PrimitiveParameter(True))
auto_stack = ParameterLoader(PrimitiveParameter(0))
notify_outdated_conda = ParameterLoader(PrimitiveParameter(True))
clobber = ParameterLoader(PrimitiveParameter(False))
changeps1 = ParameterLoader(PrimitiveParameter(True))
env_prompt = ParameterLoader(PrimitiveParameter("({default_env}) "))
create_default_packages = ParameterLoader(
SequenceParameter(PrimitiveParameter("", element_type=str))
)
default_python = ParameterLoader(
PrimitiveParameter(
default_python_default(),
element_type=(str, NoneType),
validation=default_python_validation,
)
)
download_only = ParameterLoader(PrimitiveParameter(False))
enable_private_envs = ParameterLoader(PrimitiveParameter(False))
force_32bit = ParameterLoader(PrimitiveParameter(False))
non_admin_enabled = ParameterLoader(PrimitiveParameter(True))
pip_interop_enabled = ParameterLoader(PrimitiveParameter(False))
# multithreading in various places
_default_threads = ParameterLoader(
PrimitiveParameter(0, element_type=int), aliases=("default_threads",)
)
# download repodata
_repodata_threads = ParameterLoader(
PrimitiveParameter(0, element_type=int), aliases=("repodata_threads",)
)
# download packages; determined experimentally
_fetch_threads = ParameterLoader(
PrimitiveParameter(5, element_type=int), aliases=("fetch_threads",)
)
_verify_threads = ParameterLoader(
PrimitiveParameter(0, element_type=int), aliases=("verify_threads",)
)
# this one actually defaults to 1 - that is handled in the property below
_execute_threads = ParameterLoader(
PrimitiveParameter(0, element_type=int), aliases=("execute_threads",)
)
# Safety & Security
_aggressive_update_packages = ParameterLoader(
SequenceParameter(
PrimitiveParameter("", element_type=str), DEFAULT_AGGRESSIVE_UPDATE_PACKAGES
),
aliases=("aggressive_update_packages",),
)
safety_checks = ParameterLoader(PrimitiveParameter(SafetyChecks.warn))
extra_safety_checks = ParameterLoader(PrimitiveParameter(False))
_signing_metadata_url_base = ParameterLoader(
PrimitiveParameter(None, element_type=(str, NoneType)),
aliases=("signing_metadata_url_base",),
)
path_conflict = ParameterLoader(PrimitiveParameter(PathConflict.clobber))
pinned_packages = ParameterLoader(
SequenceParameter(
PrimitiveParameter("", element_type=str), string_delimiter="&"
)
) # TODO: consider a different string delimiter # NOQA
disallowed_packages = ParameterLoader(
SequenceParameter(
PrimitiveParameter("", element_type=str), string_delimiter="&"
),
aliases=("disallow",),
)
rollback_enabled = ParameterLoader(PrimitiveParameter(True))
track_features = ParameterLoader(
SequenceParameter(PrimitiveParameter("", element_type=str))
)
use_index_cache = ParameterLoader(PrimitiveParameter(False))
separate_format_cache = ParameterLoader(PrimitiveParameter(False))
_root_prefix = ParameterLoader(
PrimitiveParameter(""), aliases=("root_dir", "root_prefix")
)
_envs_dirs = ParameterLoader(
SequenceParameter(
PrimitiveParameter("", element_type=str), string_delimiter=os.pathsep
),
aliases=("envs_dirs", "envs_path"),
expandvars=True,
)
_pkgs_dirs = ParameterLoader(
SequenceParameter(PrimitiveParameter("", str)),
aliases=("pkgs_dirs",),
expandvars=True,
)
_subdir = ParameterLoader(PrimitiveParameter(""), aliases=("subdir",))
_subdirs = ParameterLoader(
SequenceParameter(PrimitiveParameter("", str)), aliases=("subdirs",)
)
local_repodata_ttl = ParameterLoader(
PrimitiveParameter(1, element_type=(bool, int))
)
# number of seconds to cache repodata locally
# True/1: respect Cache-Control max-age header
# False/0: always fetch remote repodata (HTTP 304 responses respected)
# remote connection details
ssl_verify = ParameterLoader(
PrimitiveParameter(
True, element_type=(str, bool), validation=ssl_verify_validation
),
aliases=("verify_ssl",),
expandvars=True,
)
client_ssl_cert = ParameterLoader(
PrimitiveParameter(None, element_type=(str, NoneType)),
aliases=("client_cert",),
expandvars=True,
)
client_ssl_cert_key = ParameterLoader(
PrimitiveParameter(None, element_type=(str, NoneType)),
aliases=("client_cert_key",),
expandvars=True,
)
proxy_servers = ParameterLoader(
MapParameter(PrimitiveParameter(None, (str, NoneType))), expandvars=True
)
remote_connect_timeout_secs = ParameterLoader(PrimitiveParameter(9.15))
remote_read_timeout_secs = ParameterLoader(PrimitiveParameter(60.0))
remote_max_retries = ParameterLoader(PrimitiveParameter(3))
remote_backoff_factor = ParameterLoader(PrimitiveParameter(1))
add_anaconda_token = ParameterLoader(
PrimitiveParameter(True), aliases=("add_binstar_token",)
)
# #############################
# channels
# #############################
allow_non_channel_urls = ParameterLoader(PrimitiveParameter(False))
_channel_alias = ParameterLoader(
PrimitiveParameter(DEFAULT_CHANNEL_ALIAS, validation=channel_alias_validation),
aliases=("channel_alias",),
expandvars=True,
)
channel_priority = ParameterLoader(PrimitiveParameter(ChannelPriority.FLEXIBLE))
_channels = ParameterLoader(
SequenceParameter(
PrimitiveParameter("", element_type=str), default=(DEFAULTS_CHANNEL_NAME,)
),
aliases=(
"channels",
"channel",
),
expandvars=True,
) # channel for args.channel
channel_settings = ParameterLoader(
SequenceParameter(MapParameter(PrimitiveParameter("", element_type=str)))
)
_custom_channels = ParameterLoader(
MapParameter(PrimitiveParameter("", element_type=str), DEFAULT_CUSTOM_CHANNELS),
aliases=("custom_channels",),
expandvars=True,
)
_custom_multichannels = ParameterLoader(
MapParameter(SequenceParameter(PrimitiveParameter("", element_type=str))),
aliases=("custom_multichannels",),
expandvars=True,
)
_default_channels = ParameterLoader(
SequenceParameter(PrimitiveParameter("", element_type=str), DEFAULT_CHANNELS),
aliases=("default_channels",),
expandvars=True,
)
_migrated_channel_aliases = ParameterLoader(
SequenceParameter(PrimitiveParameter("", element_type=str)),
aliases=("migrated_channel_aliases",),
)
migrated_custom_channels = ParameterLoader(
MapParameter(PrimitiveParameter("", element_type=str)), expandvars=True
) # TODO: also take a list of strings
override_channels_enabled = ParameterLoader(PrimitiveParameter(True))
show_channel_urls = ParameterLoader(
PrimitiveParameter(None, element_type=(bool, NoneType))
)
use_local = ParameterLoader(PrimitiveParameter(False))
allowlist_channels = ParameterLoader(
SequenceParameter(PrimitiveParameter("", element_type=str)),
aliases=("whitelist_channels",),
expandvars=True,
)
restore_free_channel = ParameterLoader(PrimitiveParameter(False))
repodata_fns = ParameterLoader(
SequenceParameter(
PrimitiveParameter("", element_type=str),
("current_repodata.json", REPODATA_FN),
)
)
_use_only_tar_bz2 = ParameterLoader(
PrimitiveParameter(None, element_type=(bool, NoneType)),
aliases=("use_only_tar_bz2",),
)
always_softlink = ParameterLoader(PrimitiveParameter(False), aliases=("softlink",))
always_copy = ParameterLoader(PrimitiveParameter(False), aliases=("copy",))
always_yes = ParameterLoader(
PrimitiveParameter(None, element_type=(bool, NoneType)), aliases=("yes",)
)
debug = ParameterLoader(PrimitiveParameter(False))
dev = ParameterLoader(PrimitiveParameter(False))
dry_run = ParameterLoader(PrimitiveParameter(False))
error_upload_url = ParameterLoader(PrimitiveParameter(ERROR_UPLOAD_URL))
force = ParameterLoader(PrimitiveParameter(False))
json = ParameterLoader(PrimitiveParameter(False))
offline = ParameterLoader(PrimitiveParameter(False))
quiet = ParameterLoader(PrimitiveParameter(False))
ignore_pinned = ParameterLoader(PrimitiveParameter(False))
report_errors = ParameterLoader(
PrimitiveParameter(None, element_type=(bool, NoneType))
)
shortcuts = ParameterLoader(PrimitiveParameter(True))
number_channel_notices = ParameterLoader(PrimitiveParameter(5, element_type=int))
_verbosity = ParameterLoader(
PrimitiveParameter(0, element_type=int), aliases=("verbose", "verbosity")
)
experimental = ParameterLoader(SequenceParameter(PrimitiveParameter("", str)))
# ######################################################
# ## Solver Configuration ##
# ######################################################
deps_modifier = ParameterLoader(PrimitiveParameter(DepsModifier.NOT_SET))
update_modifier = ParameterLoader(PrimitiveParameter(UpdateModifier.UPDATE_SPECS))
sat_solver = ParameterLoader(PrimitiveParameter(SatSolverChoice.PYCOSAT))
solver_ignore_timestamps = ParameterLoader(PrimitiveParameter(False))
solver = ParameterLoader(
PrimitiveParameter(DEFAULT_SOLVER),
aliases=("experimental_solver",),
)
@property
@deprecated("23.3", "23.9", addendum="Use `context.solver` instead.")
def experimental_solver(self):
return self.solver
# # CLI-only
# no_deps = ParameterLoader(PrimitiveParameter(NULL, element_type=(type(NULL), bool)))
# # CLI-only
# only_deps = ParameterLoader(PrimitiveParameter(NULL, element_type=(type(NULL), bool)))
#
# freeze_installed = ParameterLoader(PrimitiveParameter(False))
# update_deps = ParameterLoader(PrimitiveParameter(False), aliases=('update_dependencies',))
# update_specs = ParameterLoader(PrimitiveParameter(False))
# update_all = ParameterLoader(PrimitiveParameter(False))
force_remove = ParameterLoader(PrimitiveParameter(False))
force_reinstall = ParameterLoader(PrimitiveParameter(False))
target_prefix_override = ParameterLoader(PrimitiveParameter(""))
unsatisfiable_hints = ParameterLoader(PrimitiveParameter(True))
unsatisfiable_hints_check_depth = ParameterLoader(PrimitiveParameter(2))
# conda_build
bld_path = ParameterLoader(PrimitiveParameter(""))
anaconda_upload = ParameterLoader(
PrimitiveParameter(None, element_type=(bool, NoneType)),
aliases=("binstar_upload",),
)
_croot = ParameterLoader(PrimitiveParameter(""), aliases=("croot",))
_conda_build = ParameterLoader(
MapParameter(PrimitiveParameter("", element_type=str)),
aliases=("conda-build", "conda_build"),
)
def __init__(self, search_path=None, argparse_args=None):
if search_path is None:
search_path = SEARCH_PATH
if argparse_args:
# This block of code sets CONDA_PREFIX based on '-n' and '-p' flags, so that
# configuration can be properly loaded from those locations
func_name = ("func" in argparse_args and argparse_args.func or "").rsplit(
".", 1
)[-1]
if func_name in (
"create",
"install",
"update",
"remove",
"uninstall",
"upgrade",
):
if "prefix" in argparse_args and argparse_args.prefix:
os.environ["CONDA_PREFIX"] = argparse_args.prefix
elif "name" in argparse_args and argparse_args.name:
# Currently, usage of the '-n' flag is inefficient, with all configuration
# files being loaded/re-loaded at least two times.
target_prefix = determine_target_prefix(context, argparse_args)
if target_prefix != context.root_prefix:
os.environ["CONDA_PREFIX"] = determine_target_prefix(
context, argparse_args
)
super().__init__(
search_path=search_path, app_name=APP_NAME, argparse_args=argparse_args
)
def post_build_validation(self):
errors = []
if self.client_ssl_cert_key and not self.client_ssl_cert:
error = ValidationError(
"client_ssl_cert",
self.client_ssl_cert,
"<<merged>>",
"'client_ssl_cert' is required when 'client_ssl_cert_key' "
"is defined",
)
errors.append(error)
if self.always_copy and self.always_softlink:
error = ValidationError(
"always_copy",
self.always_copy,
"<<merged>>",
"'always_copy' and 'always_softlink' are mutually exclusive. "
"Only one can be set to 'True'.",
)
errors.append(error)
return errors
@property
def plugin_manager(self):
"""
This is the preferred way of accessing the ``PluginManager`` object for this application
and is located here to avoid problems with cyclical imports elsewhere in the code.
"""
from ..plugins.manager import get_plugin_manager
return get_plugin_manager()
@property
def conda_build_local_paths(self):
# does file system reads to make sure paths actually exist
return tuple(
unique(
full_path
for full_path in (
expand(d)
for d in (
self._croot,
self.bld_path,
self.conda_build.get("root-dir"),
join(self.root_prefix, "conda-bld"),
"~/conda-bld",
)
if d
)
if isdir(full_path)
)
)
@property
def conda_build_local_urls(self):
return tuple(path_to_url(p) for p in self.conda_build_local_paths)
@property
def croot(self):
"""This is where source caches and work folders live"""
if self._croot:
return abspath(expanduser(self._croot))
elif self.bld_path:
return abspath(expanduser(self.bld_path))
elif "root-dir" in self.conda_build:
return abspath(expanduser(self.conda_build["root-dir"]))
elif self.root_writable:
return join(self.root_prefix, "conda-bld")
else:
return expand("~/conda-bld")
@property
def local_build_root(self):
return self.croot
@property
def conda_build(self):
# conda-build needs its config map to be mutable
try:
return self.__conda_build
except AttributeError:
self.__conda_build = __conda_build = dict(self._conda_build)
return __conda_build
@property
def arch_name(self):
m = platform.machine()
if m in non_x86_machines:
return m
else:
return _arch_names[self.bits]
@property
@deprecated(
"23.3",
"23.9",
addendum="It's meaningless and any special meaning it may have held is now void.",
)
def conda_private(self):
return False
@property
def platform(self):
return _platform_map.get(sys.platform, "unknown")
@property
def default_threads(self) -> int | None:
return self._default_threads or None
@property
def repodata_threads(self) -> int | None:
return self._repodata_threads or self.default_threads
@property
def fetch_threads(self) -> int | None:
return self._fetch_threads or self.default_threads
@property
def verify_threads(self) -> int | None:
if self._verify_threads:
threads = self._verify_threads
elif self.default_threads:
threads = self.default_threads
else:
threads = 1
return threads
@property
def execute_threads(self):
if self._execute_threads:
threads = self._execute_threads
elif self.default_threads:
threads = self.default_threads
else:
threads = 1
return threads
@property
def subdir(self):
if self._subdir:
return self._subdir
m = platform.machine()
if m in non_x86_machines:
return f"{self.platform}-{m}"
elif self.platform == "zos":
return "zos-z"
else:
return "%s-%d" % (self.platform, self.bits)
@property
def subdirs(self):
return self._subdirs or (self.subdir, "noarch")
@memoizedproperty
def known_subdirs(self):
return frozenset((*KNOWN_SUBDIRS, *self.subdirs))
@property
def bits(self):
if self.force_32bit:
return 32
else:
return 8 * struct.calcsize("P")
@property
def root_dir(self):
# root_dir is an alias for root_prefix, we prefer the name "root_prefix"
# because it is more consistent with other names
return self.root_prefix
@property
def root_writable(self):
# rather than using conda.gateways.disk.test.prefix_is_writable
# let's shortcut and assume the root prefix exists
path = join(self.root_prefix, PREFIX_MAGIC_FILE)
if isfile(path):
try:
fh = open(path, "a+")
except OSError as e:
log.debug(e)
return False
else:
fh.close()
return True
return False
@property
def envs_dirs(self):
return mockable_context_envs_dirs(
self.root_writable, self.root_prefix, self._envs_dirs
)
@property
def pkgs_dirs(self):
if self._pkgs_dirs:
return tuple(IndexedSet(expand(p) for p in self._pkgs_dirs))
else:
cache_dir_name = "pkgs32" if context.force_32bit else "pkgs"
fixed_dirs = (
self.root_prefix,
join("~", ".conda"),
)
if on_win:
fixed_dirs += (user_data_dir(APP_NAME, APP_NAME),)
return tuple(
IndexedSet(expand(join(p, cache_dir_name)) for p in (fixed_dirs))
)
@memoizedproperty
def trash_dir(self):
# TODO: this inline import can be cleaned up by moving pkgs_dir write detection logic
from ..core.package_cache_data import PackageCacheData
pkgs_dir = PackageCacheData.first_writable().pkgs_dir
trash_dir = join(pkgs_dir, ".trash")
from ..gateways.disk.create import mkdir_p
mkdir_p(trash_dir)
return trash_dir
@property
def default_prefix(self):
if self.active_prefix:
return self.active_prefix
_default_env = os.getenv("CONDA_DEFAULT_ENV")
if _default_env in (None, ROOT_ENV_NAME, "root"):
return self.root_prefix
elif os.sep in _default_env:
return abspath(_default_env)
else:
for envs_dir in self.envs_dirs:
default_prefix = join(envs_dir, _default_env)
if isdir(default_prefix):
return default_prefix
return join(self.envs_dirs[0], _default_env)
@property
def active_prefix(self):
return os.getenv("CONDA_PREFIX")
@property
def shlvl(self):
return int(os.getenv("CONDA_SHLVL", -1))
@property
def aggressive_update_packages(self):
from ..models.match_spec import MatchSpec
return tuple(MatchSpec(s) for s in self._aggressive_update_packages)
@property
def target_prefix(self):
# used for the prefix that is the target of the command currently being executed
# different from the active prefix, which is sometimes given by -p or -n command line flags
return determine_target_prefix(self)
@memoizedproperty
def root_prefix(self):
if self._root_prefix:
return abspath(expanduser(self._root_prefix))
else:
return self.conda_prefix
@property
def conda_prefix(self):
return abspath(sys.prefix)
@property
@deprecated(
"23.9",
"24.3",
addendum="Please use `conda.base.context.context.conda_exe_vars_dict` instead",
)
def conda_exe(self):
bin_dir = "Scripts" if on_win else "bin"
exe = "conda.exe" if on_win else "conda"
return join(self.conda_prefix, bin_dir, exe)
@property
def av_data_dir(self):
"""Where critical artifact verification data (e.g., various public keys) can be found."""
# TODO (AV): Find ways to make this user configurable?
return join(self.conda_prefix, "etc", "conda")
@property
def signing_metadata_url_base(self):
"""Base URL for artifact verification signing metadata (*.root.json, key_mgr.json)."""
if self._signing_metadata_url_base:
return self._signing_metadata_url_base
else:
return None
@property
def conda_exe_vars_dict(self):
"""
The vars can refer to each other if necessary since the dict is ordered.
None means unset it.
"""
if context.dev:
return {
"CONDA_EXE": sys.executable,
# do not confuse with os.path.join, we are joining paths with ; or : delimiters
"PYTHONPATH": os.pathsep.join(
(CONDA_SOURCE_ROOT, os.environ.get("PYTHONPATH", ""))
),
"_CE_M": "-m",
"_CE_CONDA": "conda",
"CONDA_PYTHON_EXE": sys.executable,
}
else:
bin_dir = "Scripts" if on_win else "bin"
exe = "conda.exe" if on_win else "conda"
# I was going to use None to indicate a variable to unset, but that gets tricky with
# error-on-undefined.
return {
"CONDA_EXE": os.path.join(sys.prefix, bin_dir, exe),
"_CE_M": "",
"_CE_CONDA": "",
"CONDA_PYTHON_EXE": sys.executable,
}
@memoizedproperty
def channel_alias(self):
from ..models.channel import Channel
location, scheme, auth, token = split_scheme_auth_token(self._channel_alias)
return Channel(scheme=scheme, auth=auth, location=location, token=token)
@property
def migrated_channel_aliases(self):
from ..models.channel import Channel
return tuple(
Channel(scheme=scheme, auth=auth, location=location, token=token)
for location, scheme, auth, token in (
split_scheme_auth_token(c) for c in self._migrated_channel_aliases
)
)
@property
def prefix_specified(self):
return (
self._argparse_args.get("prefix") is not None
or self._argparse_args.get("name") is not None
)
@memoizedproperty
def default_channels(self):
# the format for 'default_channels' is a list of strings that either
# - start with a scheme
# - are meant to be prepended with channel_alias
return self.custom_multichannels[DEFAULTS_CHANNEL_NAME]
@memoizedproperty
def custom_multichannels(self):
from ..models.channel import Channel
if (
not on_win
and self.subdir.startswith("win-")
and self._default_channels == DEFAULT_CHANNELS_UNIX
):
default_channels = list(DEFAULT_CHANNELS_WIN)
else:
default_channels = list(self._default_channels)
if self.restore_free_channel:
default_channels.insert(1, "https://repo.anaconda.com/pkgs/free")
reserved_multichannel_urls = {
DEFAULTS_CHANNEL_NAME: default_channels,
"local": self.conda_build_local_urls,
}
reserved_multichannels = {
name: tuple(
Channel.make_simple_channel(self.channel_alias, url) for url in urls
)
for name, urls in reserved_multichannel_urls.items()
}
custom_multichannels = {
name: tuple(
Channel.make_simple_channel(self.channel_alias, url) for url in urls
)
for name, urls in self._custom_multichannels.items()
}
return {
name: channels
for name, channels in (
*custom_multichannels.items(),
*reserved_multichannels.items(), # order maters, reserved overrides custom
)
}
@memoizedproperty
def custom_channels(self):
from ..models.channel import Channel
return {
channel.name: channel
for channel in (
*chain.from_iterable(
channel for channel in self.custom_multichannels.values()
),
*(
Channel.make_simple_channel(self.channel_alias, url, name)
for name, url in self._custom_channels.items()
),
)
}
@property
def channels(self):
local_add = ("local",) if self.use_local else ()
if (
self._argparse_args
and "override_channels" in self._argparse_args
and self._argparse_args["override_channels"]
):
if not self.override_channels_enabled:
from ..exceptions import OperationNotAllowed
raise OperationNotAllowed("Overriding channels has been disabled.")
elif not (
self._argparse_args
and "channel" in self._argparse_args
and self._argparse_args["channel"]
):
from ..exceptions import ArgumentError
raise ArgumentError(
"At least one -c / --channel flag must be supplied when using "
"--override-channels."
)
else:
return tuple(IndexedSet((*local_add, *self._argparse_args["channel"])))
# add 'defaults' channel when necessary if --channel is given via the command line
if self._argparse_args and "channel" in self._argparse_args:
# TODO: it's args.channel right now, not channels
argparse_channels = tuple(self._argparse_args["channel"] or ())
# Add condition to make sure that sure that we add the 'defaults'
# channel only when no channels are defined in condarc
# We needs to get the config_files and then check that they
# don't define channels
channel_in_config_files = any(
"channels" in context.raw_data[rc_file].keys()
for rc_file in self.config_files
)
if argparse_channels and not channel_in_config_files:
return tuple(
IndexedSet((*local_add, *argparse_channels, DEFAULTS_CHANNEL_NAME))
)
return tuple(IndexedSet((*local_add, *self._channels)))
@property
def config_files(self):
return tuple(
path
for path in context.collect_all()
if path not in ("envvars", "cmd_line")
)
@property
def use_only_tar_bz2(self):
# we avoid importing this at the top to avoid PATH issues. Ensure that this
# is only called when use_only_tar_bz2 is first called.
import conda_package_handling.api
use_only_tar_bz2 = False
if self._use_only_tar_bz2 is None:
if self._argparse_args and "use_only_tar_bz2" in self._argparse_args:
use_only_tar_bz2 &= self._argparse_args["use_only_tar_bz2"]
return (
(
hasattr(conda_package_handling.api, "libarchive_enabled")
and not conda_package_handling.api.libarchive_enabled
)
or self._use_only_tar_bz2
or use_only_tar_bz2
)
@property
def binstar_upload(self):
# backward compatibility for conda-build
return self.anaconda_upload
@property
def verbosity(self):
return 2 if self.debug else self._verbosity
@memoizedproperty
def user_agent(self):
builder = [f"conda/{CONDA_VERSION} requests/{self.requests_version}"]
builder.append("%s/%s" % self.python_implementation_name_version)
builder.append("%s/%s" % self.platform_system_release)
builder.append("%s/%s" % self.os_distribution_name_version)
if self.libc_family_version[0]:
builder.append("%s/%s" % self.libc_family_version)
if self.solver != "classic":
user_agent_str = "solver/%s" % self.solver
try:
solver_backend = self.plugin_manager.get_cached_solver_backend()
# Solver.user_agent has to be a static or class method
user_agent_str += f" {solver_backend.user_agent()}"
except Exception as exc:
log.debug(
"User agent could not be fetched from solver class '%s'.",
self.solver,
exc_info=exc,
)
builder.append(user_agent_str)
return " ".join(builder)
@contextmanager
def _override(self, key, value):
"""
TODO: This might be broken in some ways. Unsure what happens if the `old`
value is a property and gets set to a new value. Or if the new value
overrides the validation logic on the underlying ParameterLoader instance.
Investigate and implement in a safer way.
"""
old = getattr(self, key)
setattr(self, key, value)
try:
yield
finally:
setattr(self, key, old)
@memoizedproperty
def requests_version(self):
try:
from requests import __version__ as REQUESTS_VERSION
except ImportError: # pragma: no cover
try:
from pip._vendor.requests import __version__ as REQUESTS_VERSION
except ImportError:
REQUESTS_VERSION = "unknown"
return REQUESTS_VERSION
@memoizedproperty
def python_implementation_name_version(self):
# CPython, Jython
# '2.7.14'
return platform.python_implementation(), platform.python_version()
@memoizedproperty
def platform_system_release(self):
# tuple of system name and release version
#
# `uname -s` Linux, Windows, Darwin, Java
#
# `uname -r`
# '17.4.0' for macOS
# '10' or 'NT' for Windows
return platform.system(), platform.release()
@memoizedproperty
def os_distribution_name_version(self):
# tuple of os distribution name and version
# e.g.
# 'debian', '9'
# 'OSX', '10.13.6'
# 'Windows', '10.0.17134'
platform_name = self.platform_system_release[0]
if platform_name == "Linux":
from conda._vendor.distro import id, version
try:
distinfo = id(), version(best=True)
except Exception as e:
log.debug("%r", e, exc_info=True)
distinfo = ("Linux", "unknown")
distribution_name, distribution_version = distinfo[0], distinfo[1]
elif platform_name == "Darwin":
distribution_name = "OSX"
distribution_version = platform.mac_ver()[0]
else:
distribution_name = platform.system()
distribution_version = platform.version()
return distribution_name, distribution_version
@memoizedproperty
def libc_family_version(self):
# tuple of lic_family and libc_version
# None, None if not on Linux
libc_family, libc_version = linux_get_libc_version()
return libc_family, libc_version
@memoizedproperty
def cpu_flags(self):
# DANGER: This is rather slow
info = _get_cpu_info()
return info["flags"]
@memoizedproperty
@deprecated(
"23.3",
"23.9",
addendum="Use `conda.plugins.virtual_packages.cuda.cuda_version` instead.",
stack=+1,
)
def cuda_version(self) -> str | None:
"""Retrieves the current cuda version."""
from conda.plugins.virtual_packages import cuda
return cuda.cuda_version()
@property
def category_map(self):
return {
"Channel Configuration": (
"channels",
"channel_alias",
"default_channels",
"override_channels_enabled",
"allowlist_channels",
"custom_channels",
"custom_multichannels",
"migrated_channel_aliases",
"migrated_custom_channels",
"add_anaconda_token",
"allow_non_channel_urls",
"restore_free_channel",
"repodata_fns",
"use_only_tar_bz2",
"repodata_threads",
"fetch_threads",
"experimental",
),
"Basic Conda Configuration": ( # TODO: Is there a better category name here?
"envs_dirs",
"pkgs_dirs",
"default_threads",
),
"Network Configuration": (
"client_ssl_cert",
"client_ssl_cert_key",
"local_repodata_ttl",
"offline",
"proxy_servers",
"remote_connect_timeout_secs",
"remote_max_retries",
"remote_backoff_factor",
"remote_read_timeout_secs",
"ssl_verify",
),
"Solver Configuration": (
"aggressive_update_packages",
"auto_update_conda",
"channel_priority",
"create_default_packages",
"disallowed_packages",
"force_reinstall",
"pinned_packages",
"pip_interop_enabled",
"track_features",
"solver",
),
"Package Linking and Install-time Configuration": (
"allow_softlinks",
"always_copy",
"always_softlink",
"path_conflict",
"rollback_enabled",
"safety_checks",
"extra_safety_checks",
"signing_metadata_url_base",
"shortcuts",
"non_admin_enabled",
"separate_format_cache",
"verify_threads",
"execute_threads",
),
"Conda-build Configuration": (
"bld_path",
"croot",
"anaconda_upload",
"conda_build",
),
"Output, Prompt, and Flow Control Configuration": (
"always_yes",
"auto_activate_base",
"auto_stack",
"changeps1",
"env_prompt",
"json",
"notify_outdated_conda",
"quiet",
"report_errors",
"show_channel_urls",
"verbosity",
"unsatisfiable_hints",
"unsatisfiable_hints_check_depth",
"number_channel_notices",
),
"CLI-only": (
"deps_modifier",
"update_modifier",
"force",
"force_remove",
"clobber",
"dry_run",
"download_only",
"ignore_pinned",
"use_index_cache",
"use_local",
),
"Hidden and Undocumented": (
"allow_cycles", # allow cyclical dependencies, or raise
"allow_conda_downgrades",
"add_pip_as_python_dependency",
"channel_settings",
"debug",
"dev",
"default_python",
"enable_private_envs",
"error_upload_url", # should remain undocumented
"force_32bit",
"root_prefix",
"sat_solver",
"solver_ignore_timestamps",
"subdir",
"subdirs",
# https://conda.io/docs/config.html#disable-updating-of-dependencies-update-dependencies # NOQA
# I don't think this documentation is correct any longer. # NOQA
"target_prefix_override",
# used to override prefix rewriting, for e.g. building docker containers or RPMs # NOQA
),
}
def get_descriptions(self):
return self.description_map
@memoizedproperty
def description_map(self):
return frozendict(
add_anaconda_token=dals(
"""
In conjunction with the anaconda command-line client (installed with
`conda install anaconda-client`), and following logging into an Anaconda
Server API site using `anaconda login`, automatically apply a matching
private token to enable access to private packages and channels.
"""
),
# add_pip_as_python_dependency=dals(
# """
# Add pip, wheel and setuptools as dependencies of python. This ensures pip,
# wheel and setuptools will always be installed any time python is installed.
# """
# ),
aggressive_update_packages=dals(
"""
A list of packages that, if installed, are always updated to the latest possible
version.
"""
),
allow_non_channel_urls=dals(
"""
Warn, but do not fail, when conda detects a channel url is not a valid channel.
"""
),
allow_softlinks=dals(
"""
When allow_softlinks is True, conda uses hard-links when possible, and soft-links
(symlinks) when hard-links are not possible, such as when installing on a
different filesystem than the one that the package cache is on. When
allow_softlinks is False, conda still uses hard-links when possible, but when it
is not possible, conda copies files. Individual packages can override
this setting, specifying that certain files should never be soft-linked (see the
no_link option in the build recipe documentation).
"""
),
always_copy=dals(
"""
Register a preference that files be copied into a prefix during install rather
than hard-linked.
"""
),
always_softlink=dals(
"""
Register a preference that files be soft-linked (symlinked) into a prefix during
install rather than hard-linked. The link source is the 'pkgs_dir' package cache
from where the package is being linked. WARNING: Using this option can result in
corruption of long-lived conda environments. Package caches are *caches*, which
means there is some churn and invalidation. With this option, the contents of
environments can be switched out (or erased) via operations on other environments.
"""
),
always_yes=dals(
"""
Automatically choose the 'yes' option whenever asked to proceed with a conda
operation, such as when running `conda install`.
"""
),
anaconda_upload=dals(
"""
Automatically upload packages built with conda build to anaconda.org.
"""
),
auto_activate_base=dals(
"""
Automatically activate the base environment during shell initialization.
"""
),
auto_update_conda=dals(
"""
Automatically update conda when a newer or higher priority version is detected.
"""
),
auto_stack=dals(
"""
Implicitly use --stack when using activate if current level of nesting
(as indicated by CONDA_SHLVL environment variable) is less than or equal to
specified value. 0 or false disables automatic stacking, 1 or true enables
it for one level.
"""
),
bld_path=dals(
"""
The location where conda-build will put built packages. Same as 'croot', but
'croot' takes precedence when both are defined. Also used in construction of the
'local' multichannel.
"""
),
changeps1=dals(
"""
When using activate, change the command prompt ($PS1) to include the
activated environment.
"""
),
channel_alias=dals(
"""
The prepended url location to associate with channel names.
"""
),
channel_priority=dals(
"""
Accepts values of 'strict', 'flexible', and 'disabled'. The default value
is 'flexible'. With strict channel priority, packages in lower priority channels
are not considered if a package with the same name appears in a higher
priority channel. With flexible channel priority, the solver may reach into
lower priority channels to fulfill dependencies, rather than raising an
unsatisfiable error. With channel priority disabled, package version takes
precedence, and the configured priority of channels is used only to break ties.
In previous versions of conda, this parameter was configured as either True or
False. True is now an alias to 'flexible'.
"""
),
channels=dals(
"""
The list of conda channels to include for relevant operations.
"""
),
channel_settings=dals(
"""
A list of mappings that allows overriding certain settings for a single channel.
Each list item should include at least the "channel" key and the setting you would
like to override.
"""
),
client_ssl_cert=dals(
"""
A path to a single file containing a private key and certificate (e.g. .pem
file). Alternately, use client_ssl_cert_key in conjunction with client_ssl_cert
for individual files.
"""
),
client_ssl_cert_key=dals(
"""
Used in conjunction with client_ssl_cert for a matching key file.
"""
),
# clobber=dals(
# """
# Allow clobbering of overlapping file paths within packages, and suppress
# related warnings. Overrides the path_conflict configuration value when
# set to 'warn' or 'prevent'.
# """
# ),
# TODO: add shortened link to docs for conda_build at See https://conda.io/docs/user-guide/configuration/use-condarc.html#conda-build-configuration # NOQA
conda_build=dals(
"""
General configuration parameters for conda-build.
"""
),
# TODO: This is a bad parameter name. Consider an alternate.
create_default_packages=dals(
"""
Packages that are by default added to a newly created environments.
"""
),
croot=dals(
"""
The location where conda-build will put built packages. Same as 'bld_path', but
'croot' takes precedence when both are defined. Also used in construction of the
'local' multichannel.
"""
),
custom_channels=dals(
"""
A map of key-value pairs where the key is a channel name and the value is
a channel location. Channels defined here override the default
'channel_alias' value. The channel name (key) is not included in the channel
location (value). For example, to override the location of the 'conda-forge'
channel where the url to repodata is
https://anaconda-repo.dev/packages/conda-forge/linux-64/repodata.json, add an
entry 'conda-forge: https://anaconda-repo.dev/packages'.
"""
),
custom_multichannels=dals(
"""
A multichannel is a metachannel composed of multiple channels. The two reserved
multichannels are 'defaults' and 'local'. The 'defaults' multichannel is
customized using the 'default_channels' parameter. The 'local'
multichannel is a list of file:// channel locations where conda-build stashes
successfully-built packages. Other multichannels can be defined with
custom_multichannels, where the key is the multichannel name and the value is
a list of channel names and/or channel urls.
"""
),
default_channels=dals(
"""
The list of channel names and/or urls used for the 'defaults' multichannel.
"""
),
# default_python=dals(
# """
# specifies the default major & minor version of Python to be used when
# building packages with conda-build. Also used to determine the major
# version of Python (2/3) to be used in new environments. Defaults to
# the version used by conda itself.
# """
# ),
default_threads=dals(
"""
Threads to use by default for parallel operations. Default is None,
which allows operations to choose themselves. For more specific
control, see the other *_threads parameters:
* repodata_threads - for fetching/loading repodata
* verify_threads - for verifying package contents in transactions
* execute_threads - for carrying out the unlinking and linking steps
"""
),
disallowed_packages=dals(
"""
Package specifications to disallow installing. The default is to allow
all packages.
"""
),
download_only=dals(
"""
Solve an environment and ensure package caches are populated, but exit
prior to unlinking and linking packages into the prefix
"""
),
envs_dirs=dals(
"""
The list of directories to search for named environments. When creating a new
named environment, the environment will be placed in the first writable
location.
"""
),
env_prompt=dals(
"""
Template for prompt modification based on the active environment. Currently
supported template variables are '{prefix}', '{name}', and '{default_env}'.
'{prefix}' is the absolute path to the active environment. '{name}' is the
basename of the active environment prefix. '{default_env}' holds the value
of '{name}' if the active environment is a conda named environment ('-n'
flag), or otherwise holds the value of '{prefix}'. Templating uses python's
str.format() method.
"""
),
execute_threads=dals(
"""
Threads to use when performing the unlink/link transaction. When not set,
defaults to 1. This step is pretty strongly I/O limited, and you may not
see much benefit here.
"""
),
fetch_threads=dals(
"""
Threads to use when downloading packages. When not set,
defaults to None, which uses the default ThreadPoolExecutor behavior.
"""
),
force_reinstall=dals(
"""
Ensure that any user-requested package for the current operation is uninstalled
and reinstalled, even if that package already exists in the environment.
"""
),
# force=dals(
# """
# Override any of conda's objections and safeguards for installing packages and
# potentially breaking environments. Also re-installs the package, even if the
# package is already installed. Implies --no-deps.
# """
# ),
# force_32bit=dals(
# """
# CONDA_FORCE_32BIT should only be used when running conda-build (in order
# to build 32-bit packages on a 64-bit system). We don't want to mention it
# in the documentation, because it can mess up a lot of things.
# """
# ),
json=dals(
"""
Ensure all output written to stdout is structured json.
"""
),
local_repodata_ttl=dals(
"""
For a value of False or 0, always fetch remote repodata (HTTP 304 responses
respected). For a value of True or 1, respect the HTTP Cache-Control max-age
header. Any other positive integer values is the number of seconds to locally
cache repodata before checking the remote server for an update.
"""
),
migrated_channel_aliases=dals(
"""
A list of previously-used channel_alias values. Useful when switching between
different Anaconda Repository instances.
"""
),
migrated_custom_channels=dals(
"""
A map of key-value pairs where the key is a channel name and the value is
the previous location of the channel.
"""
),
# no_deps=dals(
# """
# Do not install, update, remove, or change dependencies. This WILL lead to broken
# environments and inconsistent behavior. Use at your own risk.
# """
# ),
non_admin_enabled=dals(
"""
Allows completion of conda's create, install, update, and remove operations, for
non-privileged (non-root or non-administrator) users.
"""
),
notify_outdated_conda=dals(
"""
Notify if a newer version of conda is detected during a create, install, update,
or remove operation.
"""
),
offline=dals(
"""
Restrict conda to cached download content and file:// based urls.
"""
),
override_channels_enabled=dals(
"""
Permit use of the --overide-channels command-line flag.
"""
),
path_conflict=dals(
"""
The method by which conda handle's conflicting/overlapping paths during a
create, install, or update operation. The value must be one of 'clobber',
'warn', or 'prevent'. The '--clobber' command-line flag or clobber
configuration parameter overrides path_conflict set to 'prevent'.
"""
),
pinned_packages=dals(
"""
A list of package specs to pin for every environment resolution.
This parameter is in BETA, and its behavior may change in a future release.
"""
),
pip_interop_enabled=dals(
"""
Allow the conda solver to interact with non-conda-installed python packages.
"""
),
pkgs_dirs=dals(
"""
The list of directories where locally-available packages are linked from at
install time. Packages not locally available are downloaded and extracted
into the first writable directory.
"""
),
proxy_servers=dals(
"""
A mapping to enable proxy settings. Keys can be either (1) a scheme://hostname
form, which will match any request to the given scheme and exact hostname, or
(2) just a scheme, which will match requests to that scheme. Values are are
the actual proxy server, and are of the form
'scheme://[user:password@]host[:port]'. The optional 'user:password' inclusion
enables HTTP Basic Auth with your proxy.
"""
),
quiet=dals(
"""
Disable progress bar display and other output.
"""
),
remote_connect_timeout_secs=dals(
"""
The number seconds conda will wait for your client to establish a connection
to a remote url resource.
"""
),
remote_max_retries=dals(
"""
The maximum number of retries each HTTP connection should attempt.
"""
),
remote_backoff_factor=dals(
"""
The factor determines the time HTTP connection should wait for attempt.
"""
),
remote_read_timeout_secs=dals(
"""
Once conda has connected to a remote resource and sent an HTTP request, the
read timeout is the number of seconds conda will wait for the server to send
a response.
"""
),
repodata_threads=dals(
"""
Threads to use when downloading and reading repodata. When not set,
defaults to None, which uses the default ThreadPoolExecutor behavior.
"""
),
report_errors=dals(
"""
Opt in, or opt out, of automatic error reporting to core maintainers. Error
reports are anonymous, with only the error stack trace and information given
by `conda info` being sent.
"""
),
restore_free_channel=dals(
""""
Add the "free" channel back into defaults, behind "main" in priority. The "free"
channel was removed from the collection of default channels in conda 4.7.0.
"""
),
rollback_enabled=dals(
"""
Should any error occur during an unlink/link transaction, revert any disk
mutations made to that point in the transaction.
"""
),
safety_checks=dals(
"""
Enforce available safety guarantees during package installation.
The value must be one of 'enabled', 'warn', or 'disabled'.
"""
),
separate_format_cache=dals(
"""
Treat .tar.bz2 files as different from .conda packages when
filenames are otherwise similar. This defaults to False, so
that your package cache doesn't churn when rolling out the new
package format. If you'd rather not assume that a .tar.bz2 and
.conda from the same place represent the same content, set this
to True.
"""
),
extra_safety_checks=dals(
"""
Spend extra time validating package contents. Currently, runs sha256 verification
on every file within each package during installation.
"""
),
signing_metadata_url_base=dals(
"""
Base URL for obtaining trust metadata updates (i.e., the `*.root.json` and
`key_mgr.json` files) used to verify metadata and (eventually) package signatures.
"""
),
shortcuts=dals(
"""
Allow packages to create OS-specific shortcuts (e.g. in the Windows Start
Menu) at install time.
"""
),
show_channel_urls=dals(
"""
Show channel URLs when displaying what is going to be downloaded.
"""
),
ssl_verify=dals(
"""
Conda verifies SSL certificates for HTTPS requests, just like a web
browser. By default, SSL verification is enabled, and conda operations will
fail if a required url's certificate cannot be verified. Setting ssl_verify to
False disables certification verification. The value for ssl_verify can also
be (1) a path to a CA bundle file, or (2) a path to a directory containing
certificates of trusted CA.
"""
),
track_features=dals(
"""
A list of features that are tracked by default. An entry here is similar to
adding an entry to the create_default_packages list.
"""
),
repodata_fns=dals(
"""
Specify filenames for repodata fetching. The default is ('current_repodata.json',
'repodata.json'), which tries a subset of the full index containing only the
latest version for each package, then falls back to repodata.json. You may
want to specify something else to use an alternate index that has been reduced
somehow.
"""
),
use_index_cache=dals(
"""
Use cache of channel index files, even if it has expired.
"""
),
use_only_tar_bz2=dals(
"""
A boolean indicating that only .tar.bz2 conda packages should be downloaded.
This is forced to True if conda-build is installed and older than 3.18.3,
because older versions of conda break when conda feeds it the new file format.
"""
),
verbosity=dals(
"""
Sets output log level. 0 is warn. 1 is info. 2 is debug. 3 is trace.
"""
),
verify_threads=dals(
"""
Threads to use when performing the transaction verification step. When not set,
defaults to 1.
"""
),
allowlist_channels=dals(
"""
The exclusive list of channels allowed to be used on the system. Use of any
other channels will result in an error. If conda-build channels are to be
allowed, along with the --use-local command line flag, be sure to include the
'local' channel in the list. If the list is empty or left undefined, no
channel exclusions will be enforced.
"""
),
unsatisfiable_hints=dals(
"""
A boolean to determine if conda should find conflicting packages in the case
of a failed install.
"""
),
unsatisfiable_hints_check_depth=dals(
"""
An integer that specifies how many levels deep to search for unsatisfiable
dependencies. If this number is 1 it will complete the unsatisfiable hints
fastest (but perhaps not the most complete). The higher this number, the
longer the generation of the unsat hint will take. Defaults to 3.
"""
),
solver=dals(
"""
A string to choose between the different solver logics implemented in
conda. A solver logic takes care of turning your requested packages into a
list of specs to add and/or remove from a given environment, based on their
dependencies and specified constraints.
"""
),
number_channel_notices=dals(
"""
Sets the number of channel notices to be displayed when running commands
the "install", "create", "update", "env create", and "env update" . Defaults
to 5. In order to completely suppress channel notices, set this to 0.
"""
),
experimental=dals(
"""
List of experimental features to enable.
"""
),
)
def reset_context(search_path=SEARCH_PATH, argparse_args=None):
global context
context.__init__(search_path, argparse_args)
context.__dict__.pop("_Context__conda_build", None)
from ..models.channel import Channel
Channel._reset_state()
# need to import here to avoid circular dependency
return context
@contextmanager
def fresh_context(env=None, search_path=SEARCH_PATH, argparse_args=None, **kwargs):
if env or kwargs:
old_env = os.environ.copy()
os.environ.update(env or {})
os.environ.update(kwargs)
yield reset_context(search_path=search_path, argparse_args=argparse_args)
if env or kwargs:
os.environ.clear()
os.environ.update(old_env)
reset_context()
class ContextStackObject:
def __init__(self, search_path=SEARCH_PATH, argparse_args=None):
self.set_value(search_path, argparse_args)
def set_value(self, search_path=SEARCH_PATH, argparse_args=None):
self.search_path = search_path
self.argparse_args = argparse_args
def apply(self):
reset_context(self.search_path, self.argparse_args)
class ContextStack:
def __init__(self):
self._stack = [ContextStackObject() for _ in range(3)]
self._stack_idx = 0
self._last_search_path = None
self._last_argparse_args = None
def push(self, search_path, argparse_args):
self._stack_idx += 1
old_len = len(self._stack)
if self._stack_idx >= old_len:
self._stack.extend([ContextStackObject() for _ in range(old_len)])
self._stack[self._stack_idx].set_value(search_path, argparse_args)
self.apply()
def apply(self):
if (
self._last_search_path != self._stack[self._stack_idx].search_path
or self._last_argparse_args != self._stack[self._stack_idx].argparse_args
):
# Expensive:
self._stack[self._stack_idx].apply()
self._last_search_path = self._stack[self._stack_idx].search_path
self._last_argparse_args = self._stack[self._stack_idx].argparse_args
def pop(self):
self._stack_idx -= 1
self._stack[self._stack_idx].apply()
def replace(self, search_path, argparse_args):
self._stack[self._stack_idx].set_value(search_path, argparse_args)
self._stack[self._stack_idx].apply()
context_stack = ContextStack()
def stack_context(pushing, search_path=SEARCH_PATH, argparse_args=None):
if pushing:
# Fast
context_stack.push(search_path, argparse_args)
else:
# Slow
context_stack.pop()
# Default means "The configuration when there are no condarc files present". It is
# all the settings and defaults that are built in to the code and *not* the default
# value of search_path=SEARCH_PATH. It means search_path=().
def stack_context_default(pushing, argparse_args=None):
return stack_context(pushing, search_path=(), argparse_args=argparse_args)
def replace_context(pushing=None, search_path=SEARCH_PATH, argparse_args=None):
# pushing arg intentionally not used here, but kept for API compatibility
return context_stack.replace(search_path, argparse_args)
def replace_context_default(pushing=None, argparse_args=None):
# pushing arg intentionally not used here, but kept for API compatibility
return context_stack.replace(search_path=(), argparse_args=argparse_args)
# Tests that want to only declare 'I support the project-wide default for how to
# manage stacking of contexts'. Tests that are known to be careful with context
# can use `replace_context_default` which might be faster, though it should
# be a stated goal to set conda_tests_ctxt_mgmt_def_pol to replace_context_default
# and not to stack_context_default.
conda_tests_ctxt_mgmt_def_pol = replace_context_default
@lru_cache(maxsize=None)
def _get_cpu_info():
# DANGER: This is rather slow
from .._vendor.cpuinfo import get_cpu_info
return frozendict(get_cpu_info())
def env_name(prefix):
# counter part to `locate_prefix_by_name()` below
if not prefix:
return None
if paths_equal(prefix, context.root_prefix):
return ROOT_ENV_NAME
maybe_envs_dir, maybe_name = path_split(prefix)
for envs_dir in context.envs_dirs:
if paths_equal(envs_dir, maybe_envs_dir):
return maybe_name
return prefix
def locate_prefix_by_name(name, envs_dirs=None):
"""Find the location of a prefix given a conda env name. If the location does not exist, an
error is raised.
"""
assert name
if name in (ROOT_ENV_NAME, "root"):
return context.root_prefix
if envs_dirs is None:
envs_dirs = context.envs_dirs
for envs_dir in envs_dirs:
if not isdir(envs_dir):
continue
prefix = join(envs_dir, name)
if isdir(prefix):
return abspath(prefix)
from ..exceptions import EnvironmentNameNotFound
raise EnvironmentNameNotFound(name)
def validate_prefix_name(prefix_name: str, ctx: Context, allow_base=True) -> str:
"""Run various validations to make sure prefix_name is valid"""
from ..exceptions import CondaValueError
if PREFIX_NAME_DISALLOWED_CHARS.intersection(prefix_name):
raise CondaValueError(
dals(
f"""
Invalid environment name: {prefix_name!r}
Characters not allowed: {PREFIX_NAME_DISALLOWED_CHARS}
If you are specifying a path to an environment, the `-p`
flag should be used instead.
"""
)
)
if prefix_name in (ROOT_ENV_NAME, "root"):
if allow_base:
return ctx.root_prefix
else:
raise CondaValueError(
"Use of 'base' as environment name is not allowed here."
)
else:
from ..exceptions import EnvironmentNameNotFound
try:
return locate_prefix_by_name(prefix_name)
except EnvironmentNameNotFound:
return join(_first_writable_envs_dir(), prefix_name)
def determine_target_prefix(ctx, args=None):
"""Get the prefix to operate in. The prefix may not yet exist.
Args:
ctx: the context of conda
args: the argparse args from the command line
Returns: the prefix
Raises: CondaEnvironmentNotFoundError if the prefix is invalid
"""
argparse_args = args or ctx._argparse_args
try:
prefix_name = argparse_args.name
except AttributeError:
prefix_name = None
try:
prefix_path = argparse_args.prefix
except AttributeError:
prefix_path = None
if prefix_name is not None and not prefix_name.strip(): # pragma: no cover
from ..exceptions import ArgumentError
raise ArgumentError("Argument --name requires a value.")
if prefix_path is not None and not prefix_path.strip(): # pragma: no cover
from ..exceptions import ArgumentError
raise ArgumentError("Argument --prefix requires a value.")
if prefix_name is None and prefix_path is None:
return ctx.default_prefix
elif prefix_path is not None:
return expand(prefix_path)
else:
return validate_prefix_name(prefix_name, ctx=ctx)
def _first_writable_envs_dir():
# Calling this function will *create* an envs directory if one does not already
# exist. Any caller should intend to *use* that directory for *writing*, not just reading.
for envs_dir in context.envs_dirs:
if envs_dir == os.devnull:
continue
# The magic file being used here could change in the future. Don't write programs
# outside this code base that rely on the presence of this file.
# This value is duplicated in conda.gateways.disk.create.create_envs_directory().
envs_dir_magic_file = join(envs_dir, ".conda_envs_dir_test")
if isfile(envs_dir_magic_file):
try:
open(envs_dir_magic_file, "a").close()
return envs_dir
except OSError:
log.trace("Tried envs_dir but not writable: %s", envs_dir)
else:
from ..gateways.disk.create import create_envs_directory
was_created = create_envs_directory(envs_dir)
if was_created:
return envs_dir
from ..exceptions import NoWritableEnvsDirError
raise NoWritableEnvsDirError(context.envs_dirs)
# backward compatibility for conda-build
@deprecated(
"23.3", "23.9", addendum="Use `conda.base.context.determine_target_prefix` instead."
)
def get_prefix(ctx, args, search=True): # pragma: no cover
return determine_target_prefix(ctx or context, args)
try:
context = Context((), None)
except ConfigurationLoadError as e: # pragma: no cover
print(repr(e), file=sys.stderr)
# Exception handler isn't loaded so use sys.exit
sys.exit(1)