# Copyright 2013-2022 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)
import collections
import itertools
import os.path
import posixpath
from typing import Any, Dict # novm
import llnl.util.lang as lang
import spack.compilers
import spack.config
import spack.error
import spack.repo
import spack.spec
import spack.tengine as tengine
from .common import BaseConfiguration, BaseContext, BaseFileLayout, BaseModuleFileWriter
#: lmod specific part of the configuration
[docs]def configuration(module_set_name):
config_path = 'modules:%s:lmod' % module_set_name
config = spack.config.get(config_path, {})
if not config and module_set_name == 'default':
# return old format for backward compatibility
return spack.config.get('modules:lmod', {})
return config
# Caches the configuration {spec_hash: configuration}
configuration_registry = {} # type: Dict[str, Any]
[docs]def make_configuration(spec, module_set_name):
"""Returns the lmod configuration for spec"""
key = (spec.dag_hash(), module_set_name)
try:
return configuration_registry[key]
except KeyError:
return configuration_registry.setdefault(
key, LmodConfiguration(spec, module_set_name))
[docs]def make_layout(spec, module_set_name):
"""Returns the layout information for spec """
conf = make_configuration(spec, module_set_name)
return LmodFileLayout(conf)
[docs]def make_context(spec, module_set_name):
"""Returns the context information for spec"""
conf = make_configuration(spec, module_set_name)
return LmodContext(conf)
[docs]def guess_core_compilers(name, store=False):
"""Guesses the list of core compilers installed in the system.
Args:
store (bool): if True writes the core compilers to the
modules.yaml configuration file
Returns:
List of core compilers, if found, or None
"""
core_compilers = []
for compiler_config in spack.compilers.all_compilers_config():
try:
compiler = compiler_config['compiler']
# A compiler is considered to be a core compiler if any of the
# C, C++ or Fortran compilers reside in a system directory
is_system_compiler = any(
os.path.dirname(x) in spack.util.environment.system_dirs
for x in compiler['paths'].values() if x is not None
)
if is_system_compiler:
core_compilers.append(str(compiler['spec']))
except (KeyError, TypeError, AttributeError):
continue
if store and core_compilers:
# If we asked to store core compilers, update the entry
# in the default modify scope (i.e. within the directory hierarchy
# of Spack itself)
modules_cfg = spack.config.get(
'modules:' + name, {}, scope=spack.config.default_modify_scope()
)
modules_cfg.setdefault('lmod', {})['core_compilers'] = core_compilers
spack.config.set(
'modules:' + name, modules_cfg,
scope=spack.config.default_modify_scope()
)
return core_compilers or None
[docs]class LmodConfiguration(BaseConfiguration):
"""Configuration class for lmod module files."""
# Note: Posixpath is used here as well as below as opposed to
# os.path.join due to spack.spec.Spec.format
# requiring forward slash path seperators at this stage
default_projections = {'all': posixpath.join('{name}', '{version}')}
@property
def core_compilers(self):
"""Returns the list of "Core" compilers
Raises:
CoreCompilersNotFoundError: if the key was not
specified in the configuration file or the sequence
is empty
"""
value = configuration(self.name).get(
'core_compilers'
) or guess_core_compilers(self.name, store=True)
if not value:
msg = 'the key "core_compilers" must be set in modules.yaml'
raise CoreCompilersNotFoundError(msg)
return value
@property
def core_specs(self):
"""Returns the list of "Core" specs"""
return configuration(self.name).get('core_specs', [])
@property
def hierarchy_tokens(self):
"""Returns the list of tokens that are part of the modulefile
hierarchy. 'compiler' is always present.
"""
tokens = configuration(self.name).get('hierarchy', [])
# Check if all the tokens in the hierarchy are virtual specs.
# If not warn the user and raise an error.
not_virtual = [t for t in tokens
if t != 'compiler' and
not spack.repo.path.is_virtual(t)]
if not_virtual:
msg = "Non-virtual specs in 'hierarchy' list for lmod: {0}\n"
msg += "Please check the 'modules.yaml' configuration files"
msg = msg.format(', '.join(not_virtual))
raise NonVirtualInHierarchyError(msg)
# Append 'compiler' which is always implied
tokens.append('compiler')
# Deduplicate tokens in case duplicates have been coded
tokens = list(lang.dedupe(tokens))
return tokens
@property
def requires(self):
"""Returns a dictionary mapping all the requirements of this spec
to the actual provider. 'compiler' is always present among the
requirements.
"""
# If it's a core_spec, lie and say it requires a core compiler
if any(self.spec.satisfies(core_spec)
for core_spec in self.core_specs):
return {'compiler': self.core_compilers[0]}
# Keep track of the requirements that this package has in terms
# of virtual packages that participate in the hierarchical structure
requirements = {'compiler': self.spec.compiler}
# For each virtual dependency in the hierarchy
for x in self.hierarchy_tokens:
# If I depend on it
if x in self.spec and not self.spec.package.provides(x):
requirements[x] = self.spec[x] # record the actual provider
return requirements
@property
def provides(self):
"""Returns a dictionary mapping all the services provided by this
spec to the spec itself.
"""
provides = {}
# Treat the 'compiler' case in a special way, as compilers are not
# virtual dependencies in spack
# If it is in the list of supported compilers family -> compiler
if self.spec.name in spack.compilers.supported_compilers():
provides['compiler'] = spack.spec.CompilerSpec(str(self.spec))
# Special case for llvm
if self.spec.name == 'llvm':
provides['compiler'] = spack.spec.CompilerSpec(str(self.spec))
provides['compiler'].name = 'clang'
# Special case for llvm-amdgpu
if self.spec.name == 'llvm-amdgpu':
provides['compiler'] = spack.spec.CompilerSpec(str(self.spec))
provides['compiler'].name = 'rocmcc'
# All the other tokens in the hierarchy must be virtual dependencies
for x in self.hierarchy_tokens:
if self.spec.package.provides(x):
provides[x] = self.spec[x]
return provides
@property
def available(self):
"""Returns a dictionary of the services that are currently
available.
"""
available = {}
# What is available is what I require plus what I provide.
# 'compiler' is the only key that may be overridden.
available.update(self.requires)
available.update(self.provides)
return available
@property
def missing(self):
"""Returns the list of tokens that are not available."""
return [x for x in self.hierarchy_tokens if x not in self.available]
[docs]class LmodFileLayout(BaseFileLayout):
"""File layout for lmod module files."""
#: file extension of lua module files
extension = 'lua'
@property
def arch_dirname(self):
"""Returns the root folder for THIS architecture"""
# Architecture sub-folder
arch_folder_conf = spack.config.get(
'modules:%s:arch_folder' % self.conf.name, True)
if arch_folder_conf:
# include an arch specific folder between root and filename
arch_folder = '-'.join([
str(self.spec.platform),
str(self.spec.os),
str(self.spec.target.family)
])
return os.path.join(self.dirname(), arch_folder)
return self.dirname()
@property
def filename(self):
"""Returns the filename for the current module file"""
# Get the list of requirements and build an **ordered**
# list of the path parts
requires = self.conf.requires
hierarchy = self.conf.hierarchy_tokens
path_parts = lambda x: self.token_to_path(x, requires[x])
parts = [path_parts(x) for x in hierarchy if x in requires]
# My relative path if just a join of all the parts
hierarchy_name = os.path.join(*parts)
# Compute the absolute path
fullname = os.path.join(
self.arch_dirname, # root for lmod files on this architecture
hierarchy_name, # relative path
'.'.join([self.use_name, self.extension]) # file name
)
return fullname
[docs] def token_to_path(self, name, value):
"""Transforms a hierarchy token into the corresponding path part.
Args:
name (str): name of the service in the hierarchy
value: actual provider of the service
Returns:
str: part of the path associated with the service
"""
# General format for the path part
path_part_fmt = os.path.join('{token.name}', '{token.version}')
# If we are dealing with a core compiler, return 'Core'
core_compilers = self.conf.core_compilers
if name == 'compiler' and str(value) in core_compilers:
return 'Core'
# CompilerSpec does not have an hash, as we are not allowed to
# use different flavors of the same compiler
if name == 'compiler':
return path_part_fmt.format(token=value)
# In case the hierarchy token refers to a virtual provider
# we need to append an hash to the version to distinguish
# among flavors of the same library (e.g. openblas~openmp vs.
# openblas+openmp)
path = path_part_fmt.format(token=value)
path = '-'.join([path, value.dag_hash(length=7)])
return path
@property
def available_path_parts(self):
"""List of path parts that are currently available. Needed to
construct the file name.
"""
# List of available services
available = self.conf.available
# List of services that are part of the hierarchy
hierarchy = self.conf.hierarchy_tokens
# Tokenize each part that is both in the hierarchy and available
parts = [self.token_to_path(x, available[x])
for x in hierarchy if x in available]
return parts
@property
def unlocked_paths(self):
"""Returns a dictionary mapping conditions to a list of unlocked
paths.
The paths that are unconditionally unlocked are under the
key 'None'. The other keys represent the list of services you need
loaded to unlock the corresponding paths.
"""
unlocked = collections.defaultdict(list)
# Get the list of services we require and we provide
requires_key = list(self.conf.requires)
provides_key = list(self.conf.provides)
# A compiler is always required. To avoid duplication pop the
# 'compiler' item from required if we also **provide** one
if 'compiler' in provides_key:
requires_key.remove('compiler')
# Compute the unique combinations of the services we provide
combinations = []
for ii in range(len(provides_key)):
combinations += itertools.combinations(provides_key, ii + 1)
# Attach the services required to each combination
to_be_processed = [x + tuple(requires_key) for x in combinations]
# Compute the paths that are unconditionally added
# and append them to the dictionary (key = None)
available_combination = []
for item in to_be_processed:
hierarchy = self.conf.hierarchy_tokens
available = self.conf.available
ac = [x for x in hierarchy if x in item]
available_combination.append(tuple(ac))
parts = [self.token_to_path(x, available[x]) for x in ac]
unlocked[None].append(tuple([self.arch_dirname] + parts))
# Deduplicate the list
unlocked[None] = list(lang.dedupe(unlocked[None]))
# Compute the combination of missing requirements: this will lead to
# paths that are unlocked conditionally
missing = self.conf.missing
missing_combinations = []
for ii in range(len(missing)):
missing_combinations += itertools.combinations(missing, ii + 1)
# Attach the services required to each combination
for m in missing_combinations:
to_be_processed = [m + x for x in available_combination]
for item in to_be_processed:
hierarchy = self.conf.hierarchy_tokens
available = self.conf.available
token2path = lambda x: self.token_to_path(x, available[x])
parts = []
for x in hierarchy:
if x not in item:
continue
value = token2path(x) if x in available else x
parts.append(value)
unlocked[m].append(tuple([self.arch_dirname] + parts))
# Deduplicate the list
unlocked[m] = list(lang.dedupe(unlocked[m]))
return unlocked
[docs]class LmodContext(BaseContext):
"""Context class for lmod module files."""
@tengine.context_property
def has_modulepath_modifications(self):
"""True if this module modifies MODULEPATH, False otherwise."""
return bool(self.conf.provides)
@tengine.context_property
def has_conditional_modifications(self):
"""True if this module modifies MODULEPATH conditionally to the
presence of other services in the environment, False otherwise.
"""
# In general we have conditional modifications if we have modifications
# and we are not providing **only** a compiler
provides = self.conf.provides
provide_compiler_only = 'compiler' in provides and len(provides) == 1
has_modifications = self.has_modulepath_modifications
return has_modifications and not provide_compiler_only
@tengine.context_property
def name_part(self):
"""Name of this provider."""
return self.spec.name
@tengine.context_property
def version_part(self):
"""Version of this provider."""
s = self.spec
return '-'.join([str(s.version), s.dag_hash(length=7)])
@tengine.context_property
def provides(self):
"""Returns the dictionary of provided services."""
return self.conf.provides
@tengine.context_property
def missing(self):
"""Returns a list of missing services."""
return self.conf.missing
@tengine.context_property
def unlocked_paths(self):
"""Returns the list of paths that are unlocked unconditionally."""
layout = make_layout(self.spec, self.conf.name)
return [os.path.join(*parts) for parts in layout.unlocked_paths[None]]
@tengine.context_property
def conditionally_unlocked_paths(self):
"""Returns the list of paths that are unlocked conditionally.
Each item in the list is a tuple with the structure (condition, path).
"""
layout = make_layout(self.spec, self.conf.name)
value = []
conditional_paths = layout.unlocked_paths
conditional_paths.pop(None)
for services_needed, list_of_path_parts in conditional_paths.items():
condition = ' and '.join([x + '_name' for x in services_needed])
for parts in list_of_path_parts:
def manipulate_path(token):
if token in self.conf.hierarchy_tokens:
return '{0}_name, {0}_version'.format(token)
return '"' + token + '"'
path = ', '.join([manipulate_path(x) for x in parts])
value.append((condition, path))
return value
[docs]class LmodModulefileWriter(BaseModuleFileWriter):
"""Writer class for lmod module files."""
default_template = posixpath.join('modules', 'modulefile.lua')
[docs]class CoreCompilersNotFoundError(spack.error.SpackError, KeyError):
"""Error raised if the key 'core_compilers' has not been specified
in the configuration file.
"""
[docs]class NonVirtualInHierarchyError(spack.error.SpackError, TypeError):
"""Error raised if non-virtual specs are used as hierarchy tokens in
the lmod section of 'modules.yaml'.
"""