# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
"""Define a common data structure to represent external packages and a
function to update packages.yaml given a list of detected packages.
Ideally, each detection method should be placed in a specific subpackage
and implement at least a function that returns a list of DetectedPackage
objects. The update in packages.yaml can then be done using the function
provided here.
The module also contains other functions that might be useful across different
detection mechanisms.
"""
import glob
import itertools
import os
import os.path
import re
import sys
from typing import Dict, List, NamedTuple, Optional, Set, Tuple, Union
import llnl.util.tty
import spack.config
import spack.operating_systems.windows_os as winOs
import spack.spec
import spack.util.spack_yaml
import spack.util.windows_registry
[docs]
class DetectedPackage(NamedTuple):
"""Information on a package that has been detected."""
#: Spec that was detected
spec: spack.spec.Spec
#: Prefix of the spec
prefix: str
def __reduce__(self):
return DetectedPackage.restore, (str(self.spec), self.prefix, self.spec.extra_attributes)
[docs]
@staticmethod
def restore(
spec_str: str, prefix: str, extra_attributes: Optional[Dict[str, str]]
) -> "DetectedPackage":
spec = spack.spec.Spec.from_detection(spec_str=spec_str, extra_attributes=extra_attributes)
return DetectedPackage(spec=spec, prefix=prefix)
def _externals_in_packages_yaml() -> Set[spack.spec.Spec]:
"""Returns all the specs mentioned as externals in packages.yaml"""
packages_yaml = spack.config.get("packages")
already_defined_specs = set()
for pkg_name, package_configuration in packages_yaml.items():
for item in package_configuration.get("externals", []):
already_defined_specs.add(spack.spec.Spec(item["spec"]))
return already_defined_specs
ExternalEntryType = Union[str, Dict[str, str]]
def _pkg_config_dict(
external_pkg_entries: List[DetectedPackage],
) -> Dict[str, Union[bool, List[Dict[str, ExternalEntryType]]]]:
"""Generate a package specific config dict according to the packages.yaml schema.
This does not generate the entire packages.yaml. For example, given some
external entries for the CMake package, this could return::
{
'externals': [{
'spec': 'cmake@3.17.1',
'prefix': '/opt/cmake-3.17.1/'
}, {
'spec': 'cmake@3.16.5',
'prefix': '/opt/cmake-3.16.5/'
}]
}
"""
pkg_dict = spack.util.spack_yaml.syaml_dict()
pkg_dict["externals"] = []
for e in external_pkg_entries:
if not _spec_is_valid(e.spec):
continue
external_items: List[Tuple[str, ExternalEntryType]] = [
("spec", str(e.spec)),
("prefix", e.prefix),
]
if e.spec.external_modules:
external_items.append(("modules", e.spec.external_modules))
if e.spec.extra_attributes:
external_items.append(
(
"extra_attributes",
spack.util.spack_yaml.syaml_dict(e.spec.extra_attributes.items()),
)
)
# external_items.extend(e.spec.extra_attributes.items())
pkg_dict["externals"].append(spack.util.spack_yaml.syaml_dict(external_items))
return pkg_dict
def _spec_is_valid(spec: spack.spec.Spec) -> bool:
try:
str(spec)
except spack.error.SpackError:
# It is assumed here that we can at least extract the package name from the spec so we
# can look up the implementation of determine_spec_details
msg = f"Constructed spec for {spec.name} does not have a string representation"
llnl.util.tty.warn(msg)
return False
try:
spack.spec.Spec(str(spec))
except spack.error.SpackError:
llnl.util.tty.warn(
"Constructed spec has a string representation but the string"
" representation does not evaluate to a valid spec: {0}".format(str(spec))
)
return False
return True
[docs]
def path_to_dict(search_paths: List[str]):
"""Return dictionary[fullpath]: basename from list of paths"""
path_to_lib = {}
# Reverse order of search directories so that a lib in the first
# entry overrides later entries
for search_path in reversed(search_paths):
try:
for lib in os.listdir(search_path):
lib_path = os.path.join(search_path, lib)
if llnl.util.filesystem.is_readable_file(lib_path):
path_to_lib[lib_path] = lib
except OSError as e:
msg = f"cannot scan '{search_path}' for external software: {str(e)}"
llnl.util.tty.debug(msg)
return path_to_lib
[docs]
def is_executable(file_path: str) -> bool:
"""Return True if the path passed as argument is that of an executable"""
return os.path.isfile(file_path) and os.access(file_path, os.X_OK)
def _convert_to_iterable(single_val_or_multiple):
x = single_val_or_multiple
if x is None:
return []
elif isinstance(x, str):
return [x]
elif isinstance(x, spack.spec.Spec):
# Specs are iterable, but a single spec should be converted to a list
return [x]
try:
iter(x)
return x
except TypeError:
return [x]
[docs]
def executable_prefix(executable_dir: str) -> str:
"""Given a directory where an executable is found, guess the prefix
(i.e. the "root" directory of that installation) and return it.
Args:
executable_dir: directory where an executable is found
"""
# Given a prefix where an executable is found, assuming that prefix
# contains /bin/, strip off the 'bin' directory to get a Spack-compatible
# prefix
assert os.path.isdir(executable_dir)
components = executable_dir.split(os.sep)
# convert to lower to match Bin, BIN, bin
lowered_components = executable_dir.lower().split(os.sep)
if "bin" not in lowered_components:
return executable_dir
idx = lowered_components.index("bin")
return os.sep.join(components[:idx])
[docs]
def library_prefix(library_dir: str) -> str:
"""Given a directory where a library is found, guess the prefix
(i.e. the "root" directory of that installation) and return it.
Args:
library_dir: directory where a library is found
"""
# Given a prefix where an library is found, assuming that prefix
# contains /lib/ or /lib64/, strip off the 'lib' or 'lib64' directory
# to get a Spack-compatible prefix
assert os.path.isdir(library_dir)
components = library_dir.split(os.sep)
# covert to lowercase to match lib, LIB, Lib, etc.
lowered_components = library_dir.lower().split(os.sep)
if "lib64" in lowered_components:
idx = lowered_components.index("lib64")
return os.sep.join(components[:idx])
elif "lib" in lowered_components:
idx = lowered_components.index("lib")
return os.sep.join(components[:idx])
elif sys.platform == "win32" and "bin" in lowered_components:
idx = lowered_components.index("bin")
return os.sep.join(components[:idx])
else:
return library_dir
[docs]
def update_configuration(
detected_packages: Dict[str, List[DetectedPackage]],
scope: Optional[str] = None,
buildable: bool = True,
) -> List[spack.spec.Spec]:
"""Add the packages passed as arguments to packages.yaml
Args:
detected_packages: list of DetectedPackage objects to be added
scope: configuration scope where to add the detected packages
buildable: whether the detected packages are buildable or not
"""
predefined_external_specs = _externals_in_packages_yaml()
pkg_to_cfg, all_new_specs = {}, []
for package_name, entries in detected_packages.items():
new_entries = [e for e in entries if (e.spec not in predefined_external_specs)]
pkg_config = _pkg_config_dict(new_entries)
external_entries = pkg_config.get("externals", [])
assert not isinstance(external_entries, bool), "unexpected value for external entry"
all_new_specs.extend([spack.spec.Spec(x["spec"]) for x in external_entries])
if buildable is False:
pkg_config["buildable"] = False
pkg_to_cfg[package_name] = pkg_config
pkgs_cfg = spack.config.get("packages", scope=scope)
pkgs_cfg = spack.config.merge_yaml(pkgs_cfg, pkg_to_cfg)
spack.config.set("packages", pkgs_cfg, scope=scope)
return all_new_specs
def _windows_drive() -> str:
"""Return Windows drive string extracted from the PROGRAMFILES environment variable,
which is guaranteed to be defined for all logins.
"""
match = re.match(r"([a-zA-Z]:)", os.environ["PROGRAMFILES"])
if match is None:
raise RuntimeError("cannot read the PROGRAMFILES environment variable")
return match.group(1)
[docs]
class WindowsCompilerExternalPaths:
[docs]
@staticmethod
def find_windows_compiler_root_paths() -> List[str]:
"""Helper for Windows compiler installation root discovery
At the moment simply returns location of VS install paths from VSWhere
But should be extended to include more information as relevant"""
return list(winOs.WindowsOs().vs_install_paths)
[docs]
@staticmethod
def find_windows_compiler_cmake_paths() -> List[str]:
"""Semi hard-coded search path for cmake bundled with MSVC"""
return [
os.path.join(
path, "Common7", "IDE", "CommonExtensions", "Microsoft", "CMake", "CMake", "bin"
)
for path in WindowsCompilerExternalPaths.find_windows_compiler_root_paths()
]
[docs]
@staticmethod
def find_windows_compiler_ninja_paths() -> List[str]:
"""Semi hard-coded search heuristic for locating ninja bundled with MSVC"""
return [
os.path.join(path, "Common7", "IDE", "CommonExtensions", "Microsoft", "CMake", "Ninja")
for path in WindowsCompilerExternalPaths.find_windows_compiler_root_paths()
]
[docs]
@staticmethod
def find_windows_compiler_bundled_packages() -> List[str]:
"""Return all MSVC compiler bundled packages"""
return (
WindowsCompilerExternalPaths.find_windows_compiler_cmake_paths()
+ WindowsCompilerExternalPaths.find_windows_compiler_ninja_paths()
)
[docs]
class WindowsKitExternalPaths:
[docs]
@staticmethod
def find_windows_kit_roots() -> List[str]:
"""Return Windows kit root, typically %programfiles%\\Windows Kits\\10|11\\"""
if sys.platform != "win32":
return []
program_files = os.environ["PROGRAMFILES(x86)"]
kit_base = os.path.join(program_files, "Windows Kits", "**")
return glob.glob(kit_base)
[docs]
@staticmethod
def find_windows_kit_bin_paths(
kit_base: Union[Optional[str], Optional[list]] = None
) -> List[str]:
"""Returns Windows kit bin directory per version"""
kit_base = WindowsKitExternalPaths.find_windows_kit_roots() if not kit_base else kit_base
assert kit_base, "Unexpectedly empty value for Windows kit base path"
if isinstance(kit_base, str):
kit_base = kit_base.split(";")
kit_paths = []
for kit in kit_base:
kit_bin = os.path.join(kit, "bin")
kit_paths.extend(glob.glob(os.path.join(kit_bin, "[0-9]*", "*\\")))
return kit_paths
[docs]
@staticmethod
def find_windows_kit_lib_paths(
kit_base: Union[Optional[str], Optional[list]] = None
) -> List[str]:
"""Returns Windows kit lib directory per version"""
kit_base = WindowsKitExternalPaths.find_windows_kit_roots() if not kit_base else kit_base
assert kit_base, "Unexpectedly empty value for Windows kit base path"
if isinstance(kit_base, str):
kit_base = kit_base.split(";")
kit_paths = []
for kit in kit_base:
kit_lib = os.path.join(kit, "Lib")
kit_paths.extend(glob.glob(os.path.join(kit_lib, "[0-9]*", "*", "*\\")))
return kit_paths
[docs]
@staticmethod
def find_windows_driver_development_kit_paths() -> List[str]:
"""Provides a list of all installation paths
for the WDK by version and architecture
"""
wdk_content_root = os.getenv("WDKContentRoot")
return WindowsKitExternalPaths.find_windows_kit_lib_paths(wdk_content_root)
[docs]
@staticmethod
def find_windows_kit_reg_installed_roots_paths() -> List[str]:
reg = spack.util.windows_registry.WindowsRegistryView(
"SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots",
root_key=spack.util.windows_registry.HKEY.HKEY_LOCAL_MACHINE,
)
if not reg:
# couldn't find key, return empty list
return []
kit_root_reg = re.compile(r"KitsRoot[0-9]+")
root_paths = []
for kit_root in filter(kit_root_reg.match, reg.get_values().keys()):
root_paths.extend(
WindowsKitExternalPaths.find_windows_kit_lib_paths(reg.get_value(kit_root).value)
)
return root_paths
[docs]
@staticmethod
def find_windows_kit_reg_sdk_paths() -> List[str]:
sdk_paths = []
sdk_regex = re.compile(r"v[0-9]+.[0-9]+")
windows_reg = spack.util.windows_registry.WindowsRegistryView(
"SOFTWARE\\WOW6432Node\\Microsoft\\Microsoft SDKs\\Windows",
root_key=spack.util.windows_registry.HKEY.HKEY_LOCAL_MACHINE,
)
for key in filter(sdk_regex.match, [x.name for x in windows_reg.get_subkeys()]):
reg = windows_reg.get_subkey(key)
sdk_paths.extend(
WindowsKitExternalPaths.find_windows_kit_lib_paths(
reg.get_value("InstallationFolder").value
)
)
return sdk_paths
[docs]
def find_win32_additional_install_paths() -> List[str]:
"""Not all programs on Windows live on the PATH
Return a list of other potential install locations.
"""
drive_letter = _windows_drive()
windows_search_ext = []
cuda_re = r"CUDA_PATH[a-zA-Z1-9_]*"
# The list below should be expanded with other
# common Windows install locations as neccesary
path_ext_keys = ["I_MPI_ONEAPI_ROOT", "MSMPI_BIN", "MLAB_ROOT", "NUGET_PACKAGES"]
user = os.environ["USERPROFILE"]
add_path = lambda key: re.search(cuda_re, key) or key in path_ext_keys
windows_search_ext.extend([os.environ[key] for key in os.environ.keys() if add_path(key)])
# note windows paths are fine here as this method should only ever be invoked
# to interact with Windows
# Add search path for default Chocolatey (https://github.com/chocolatey/choco)
# install directory
windows_search_ext.append("%s\\ProgramData\\chocolatey\\bin" % drive_letter)
# Add search path for NuGet package manager default install location
windows_search_ext.append(os.path.join(user, ".nuget", "packages"))
windows_search_ext.extend(
spack.config.get("config:additional_external_search_paths", default=[])
)
windows_search_ext.extend(spack.util.environment.get_path("PATH"))
return windows_search_ext
[docs]
def compute_windows_program_path_for_package(pkg: "spack.package_base.PackageBase") -> List[str]:
"""Given a package, attempts to compute its Windows program files location,
and returns the list of best guesses.
Args:
pkg: package for which Program Files location is to be computed
"""
if sys.platform != "win32":
return []
# note windows paths are fine here as this method should only ever be invoked
# to interact with Windows
program_files = "{}\\Program Files{}\\{}"
drive_letter = _windows_drive()
return [
program_files.format(drive_letter, arch, name)
for arch, name in itertools.product(("", " (x86)"), (pkg.name, pkg.name.capitalize()))
]
[docs]
def compute_windows_user_path_for_package(pkg: "spack.package_base.PackageBase") -> List[str]:
"""Given a package attempt to compute its user scoped
install location, return list of potential locations based
on common heuristics. For more info on Windows user specific
installs see:
https://learn.microsoft.com/en-us/dotnet/api/system.environment.specialfolder?view=netframework-4.8
"""
if sys.platform != "win32":
return []
# Current user directory
user = os.environ["USERPROFILE"]
app_data = "AppData"
app_data_locations = ["Local", "Roaming"]
user_appdata_install_stubs = [os.path.join(app_data, x) for x in app_data_locations]
return [
os.path.join(user, app_data, name)
for app_data, name in list(
itertools.product(user_appdata_install_stubs, (pkg.name, pkg.name.capitalize()))
)
] + [os.path.join(user, name) for name in (pkg.name, pkg.name.capitalize())]