Files
cibuildwheel/cibuildwheel/options.py
T

464 lines
16 KiB
Python

import copy
import os
import sys
import traceback
from configparser import ConfigParser
from pathlib import Path
from typing import Any, Dict, List, Mapping, Optional, Set, Tuple, TypeVar, Union
import tomli
from packaging.specifiers import SpecifierSet
from .architecture import Architecture
from .environment import EnvironmentParseError, parse_environment
from .projectfiles import get_requires_python_str
from .typing import PLATFORMS, PlatformName, TypedDict
from .util import (
MANYLINUX_ARCHS,
MUSLLINUX_ARCHS,
BuildFrontend,
BuildOptions,
BuildSelector,
DependencyConstraints,
TestSelector,
resources_dir,
strtobool,
)
Setting = Union[Dict[str, str], List[str], str]
class TableFmt(TypedDict):
item: str
sep: str
class ConfigOptionError(KeyError):
pass
def _dig_first(*pairs: Tuple[Mapping[str, Setting], str], ignore_empty: bool = False) -> Setting:
"""
Return the first dict item that matches from pairs of dicts and keys.
Will throw a KeyError if missing.
_dig_first((dict1, "key1"), (dict2, "key2"), ...)
"""
if not pairs:
raise ValueError("pairs cannot be empty")
for dict_like, key in pairs:
if key in dict_like:
value = dict_like[key]
if ignore_empty and value == "":
continue
return value
raise KeyError(key)
T = TypeVar("T", bound="ConfigOptions")
class ConfigOptions:
"""
Gets options from the environment, config or defaults, optionally scoped
by the platform.
Example:
>>> options = ConfigOptions(package_dir, platform='macos')
>>> options('cool-color')
This will return the value of CIBW_COOL_COLOR_MACOS if it exists,
otherwise the value of CIBW_COOL_COLOR, otherwise
'tool.cibuildwheel.macos.cool-color' or 'tool.cibuildwheel.cool-color'
from pyproject.toml, or from cibuildwheel/resources/defaults.toml. An
error is thrown if there are any unexpected keys or sections in
tool.cibuildwheel.
"""
def __init__(
self,
package_path: Path,
config_file: Optional[str] = None,
*,
platform: str,
disallow: Optional[Dict[str, Set[str]]] = None,
) -> None:
self.platform = platform
self.disallow = disallow or {}
# Open defaults.toml, loading both global and platform sections
defaults_path = resources_dir / "defaults.toml"
self.default_options, self.default_platform_options = self._load_file(defaults_path)
# Load the project config file
config_options: Dict[str, Any] = {}
config_platform_options: Dict[str, Any] = {}
if config_file is not None:
config_path = Path(config_file.format(package=package_path))
config_options, config_platform_options = self._load_file(config_path)
else:
# load pyproject.toml, if it's available
pyproject_toml_path = package_path / "pyproject.toml"
if pyproject_toml_path.exists():
config_options, config_platform_options = self._load_file(pyproject_toml_path)
# Validate project config
for option_name in config_options:
if not self._is_valid_global_option(option_name):
raise ConfigOptionError(f'Option "{option_name}" not supported in a config file')
for option_name in config_platform_options:
if not self._is_valid_platform_option(option_name):
raise ConfigOptionError(
f'Option "{option_name}" not supported in the "{self.platform}" section'
)
self.config_options = config_options
self.config_platform_options = config_platform_options
self.overrides: Dict[str, Dict[str, Any]] = {}
self.current_override: str = "*"
overrides = self.config_options.get("overrides")
if overrides is not None:
if not isinstance(overrides, list):
raise ConfigOptionError('"tool.cibuildwheel.overrides" must be a list')
for override in overrides:
selector = override.pop("select")
if isinstance(selector, list):
selector = " ".join(selector)
if selector in {"", "*"}:
raise ConfigOptionError("select all must not be used in an override")
self.overrides[selector.strip()] = override
def _is_valid_global_option(self, name: str) -> bool:
"""
Returns True if an option with this name is allowed in the
[tool.cibuildwheel] section of a config file.
"""
allowed_option_names = self.default_options.keys() | PLATFORMS | {"overrides"}
return name in allowed_option_names
def _is_valid_platform_option(self, name: str) -> bool:
"""
Returns True if an option with this name is allowed in the
[tool.cibuildwheel.<current-platform>] section of a config file.
"""
disallowed_platform_options = self.disallow.get(self.platform, set())
if name in disallowed_platform_options:
return False
allowed_option_names = self.default_options.keys() | self.default_platform_options.keys()
return name in allowed_option_names
def _load_file(self, filename: Path) -> Tuple[Dict[str, Any], Dict[str, Any]]:
"""
Load a toml file, returns global and platform as separate dicts.
"""
with filename.open("rb") as f:
config = tomli.load(f)
global_options = config.get("tool", {}).get("cibuildwheel", {})
platform_options = global_options.get(self.platform, {})
return global_options, platform_options
def override(self: T, selector: str) -> T:
"""
Start an override scope.
"""
other = copy.copy(self)
other.current_override = selector
return other
def __call__(
self,
name: str,
*,
env_plat: bool = True,
sep: Optional[str] = None,
table: Optional[TableFmt] = None,
ignore_empty: bool = False,
) -> str:
"""
Get and return the value for the named option from environment,
configuration file, or the default. If env_plat is False, then don't
accept platform versions of the environment variable. If this is an
array it will be merged with "sep" before returning. If it is a table,
it will be formatted with "table['item']" using {k} and {v} and merged
with "table['sep']". Empty variables will not override if ignore_empty
is True.
"""
if name not in self.default_options and name not in self.default_platform_options:
raise ConfigOptionError(f"{name} must be in cibuildwheel/resources/defaults.toml file")
# Environment variable form
envvar = f"CIBW_{name.upper().replace('-', '_')}"
plat_envvar = f"{envvar}_{self.platform.upper()}"
# get the option from the environment, then the config file, then finally the default.
# platform-specific options are preferred, if they're allowed.
empty: Dict[str, Any] = {}
result = _dig_first(
(os.environ if env_plat else {}, plat_envvar), # type: ignore[arg-type]
(os.environ, envvar),
(self.overrides.get(self.current_override, empty), name),
(self.config_platform_options, name),
(self.config_options, name),
(self.default_platform_options, name),
(self.default_options, name),
ignore_empty=ignore_empty,
)
if isinstance(result, dict):
if table is None:
raise ConfigOptionError(f"{name} does not accept a table")
return table["sep"].join(table["item"].format(k=k, v=v) for k, v in result.items())
elif isinstance(result, list):
if sep is None:
raise ConfigOptionError(f"{name} does not accept a list")
return sep.join(result)
elif isinstance(result, int):
return str(result)
else:
return result
def compute_options(
platform: PlatformName,
package_dir: Path,
output_dir: Path,
config_file: Optional[str],
args_archs: Optional[str],
prerelease_pythons: bool,
) -> Tuple[BuildOptions, Dict[str, BuildOptions]]:
"""
Compute the options from the environment and configuration file.
"""
manylinux_identifiers = {
f"manylinux-{build_platform}-image" for build_platform in MANYLINUX_ARCHS
}
musllinux_identifiers = {
f"musllinux-{build_platform}-image" for build_platform in MUSLLINUX_ARCHS
}
disallow = {
"linux": {"dependency-versions"},
"macos": manylinux_identifiers | musllinux_identifiers,
"windows": manylinux_identifiers | musllinux_identifiers,
}
options = ConfigOptions(package_dir, config_file, platform=platform, disallow=disallow)
build_config = options("build", env_plat=False, sep=" ") or "*"
skip_config = options("skip", env_plat=False, sep=" ")
test_skip = options("test-skip", env_plat=False, sep=" ")
prerelease_pythons = prerelease_pythons or strtobool(
os.environ.get("CIBW_PRERELEASE_PYTHONS", "0")
)
deprecated_selectors("CIBW_BUILD", build_config, error=True)
deprecated_selectors("CIBW_SKIP", skip_config)
deprecated_selectors("CIBW_TEST_SKIP", test_skip)
package_files = {"setup.py", "setup.cfg", "pyproject.toml"}
if not any(package_dir.joinpath(name).exists() for name in package_files):
names = ", ".join(sorted(package_files, reverse=True))
msg = f"cibuildwheel: Could not find any of {{{names}}} at root of package"
print(msg, file=sys.stderr)
sys.exit(2)
# This is not supported in tool.cibuildwheel, as it comes from a standard location.
# Passing this in as an environment variable will override pyproject.toml, setup.cfg, or setup.py
requires_python_str: Optional[str] = os.environ.get(
"CIBW_PROJECT_REQUIRES_PYTHON"
) or get_requires_python_str(package_dir)
requires_python = None if requires_python_str is None else SpecifierSet(requires_python_str)
build_selector = BuildSelector(
build_config=build_config,
skip_config=skip_config,
requires_python=requires_python,
prerelease_pythons=prerelease_pythons,
)
test_selector = TestSelector(skip_config=test_skip)
return _compute_all_options(
options, args_archs, build_selector, test_selector, platform, package_dir, output_dir
)
def _get_pinned_docker_images() -> Mapping[str, Mapping[str, str]]:
"""
This looks like a dict of dicts, e.g.
{ 'x86_64': {'manylinux1': '...', 'manylinux2010': '...', 'manylinux2014': '...'},
'i686': {'manylinux1': '...', 'manylinux2010': '...', 'manylinux2014': '...'},
'pypy_x86_64': {'manylinux2010': '...' }
... }
"""
pinned_docker_images_file = resources_dir / "pinned_docker_images.cfg"
all_pinned_docker_images = ConfigParser()
all_pinned_docker_images.read(pinned_docker_images_file)
return all_pinned_docker_images
def _compute_single_options(
options: ConfigOptions,
args_archs: Optional[str],
build_selector: BuildSelector,
test_selector: TestSelector,
platform: PlatformName,
package_dir: Path,
output_dir: Path,
) -> BuildOptions:
"""
Compute BuildOptions for a single run configuration.
"""
# Can't be configured per selector
before_all = options("before-all", sep=" && ")
archs_config_str = args_archs or options("archs", sep=" ")
build_frontend_str = options("build-frontend", env_plat=False)
environment_config = options("environment", table={"item": '{k}="{v}"', "sep": " "})
before_build = options("before-build", sep=" && ")
repair_command = options("repair-wheel-command", sep=" && ")
dependency_versions = options("dependency-versions")
test_command = options("test-command", sep=" && ")
before_test = options("before-test", sep=" && ")
test_requires = options("test-requires", sep=" ").split()
test_extras = options("test-extras", sep=",")
build_verbosity_str = options("build-verbosity")
build_frontend: BuildFrontend
if build_frontend_str == "build":
build_frontend = "build"
elif build_frontend_str == "pip":
build_frontend = "pip"
else:
msg = f"cibuildwheel: Unrecognised build frontend '{build_frontend}', only 'pip' and 'build' are supported"
print(msg, file=sys.stderr)
sys.exit(2)
try:
environment = parse_environment(environment_config)
except (EnvironmentParseError, ValueError):
print(f'cibuildwheel: Malformed environment option "{environment_config}"', file=sys.stderr)
traceback.print_exc(None, sys.stderr)
sys.exit(2)
if dependency_versions == "pinned":
dependency_constraints: Optional[
DependencyConstraints
] = DependencyConstraints.with_defaults()
elif dependency_versions == "latest":
dependency_constraints = None
else:
dependency_versions_path = Path(dependency_versions)
dependency_constraints = DependencyConstraints(dependency_versions_path)
if test_extras:
test_extras = f"[{test_extras}]"
try:
build_verbosity = min(3, max(-3, int(build_verbosity_str)))
except ValueError:
build_verbosity = 0
archs = Architecture.parse_config(archs_config_str, platform=platform)
manylinux_images: Dict[str, str] = {}
musllinux_images: Dict[str, str] = {}
if platform == "linux":
all_pinned_docker_images = _get_pinned_docker_images()
for build_platform in MANYLINUX_ARCHS:
pinned_images = all_pinned_docker_images[build_platform]
config_value = options(f"manylinux-{build_platform}-image", ignore_empty=True)
if not config_value:
# default to manylinux2010 if it's available, otherwise manylinux2014
image = pinned_images.get("manylinux2010") or pinned_images.get("manylinux2014")
elif config_value in pinned_images:
image = pinned_images[config_value]
else:
image = config_value
assert image is not None
manylinux_images[build_platform] = image
for build_platform in MUSLLINUX_ARCHS:
pinned_images = all_pinned_docker_images[build_platform]
config_value = options(f"musllinux-{build_platform}-image")
if config_value is None:
image = pinned_images.get("musllinux_1_1")
elif config_value in pinned_images:
image = pinned_images[config_value]
else:
image = config_value
musllinux_images[build_platform] = image
return BuildOptions(
architectures=archs,
package_dir=package_dir,
output_dir=output_dir,
test_command=test_command,
test_requires=test_requires,
test_extras=test_extras,
before_test=before_test,
before_build=before_build,
before_all=before_all,
build_verbosity=build_verbosity,
build_selector=build_selector,
test_selector=test_selector,
repair_command=repair_command,
environment=environment,
dependency_constraints=dependency_constraints,
manylinux_images=manylinux_images or None,
musllinux_images=musllinux_images or None,
build_frontend=build_frontend,
)
def _compute_all_options(
options: ConfigOptions,
args_archs: Optional[str],
build_selector: BuildSelector,
test_selector: TestSelector,
platform: PlatformName,
package_dir: Path,
output_dir: Path,
) -> Tuple[BuildOptions, Dict[str, BuildOptions]]:
args = (args_archs, build_selector, test_selector, platform, package_dir, output_dir)
general_build_options = _compute_single_options(options, *args)
selectors = options.overrides.keys()
build_options_by_selector = {
s: _compute_single_options(options.override(s), *args) for s in selectors
}
return general_build_options, build_options_by_selector
def deprecated_selectors(name: str, selector: str, *, error: bool = False) -> None:
if "p2" in selector or "p35" in selector:
msg = f"cibuildwheel 2.x no longer supports Python < 3.6. Please use the 1.x series or update {name}"
print(msg, file=sys.stderr)
if error:
sys.exit(4)