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# Copyright 2013-2019 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 sys
import os
import spack.config
import spack.util.prefix as prefix
import spack.util.environment as environment
import spack.build_environment as build_env
#: Environment variable name Spack uses to track individually loaded packages
spack_loaded_hashes_var = 'SPACK_LOADED_HASHES'
def prefix_inspections(platform):
"""Get list of prefix inspections for platform
Arguments:
platform (string): the name of the platform to consider. The platform
determines what environment variables Spack will use for some
inspections.
Returns:
A dictionary mapping subdirectory names to lists of environment
variables to modify with that directory if it exists.
"""
inspections = spack.config.get('modules:prefix_inspections', None)
if inspections is not None:
return inspections
inspections = {
'bin': ['PATH'],
'lib': ['LD_LIBRARY_PATH', 'LIBRARY_PATH'],
'lib64': ['LD_LIBRARY_PATH', 'LIBRARY_PATH'],
'man': ['MANPATH'],
'share/man': ['MANPATH'],
'share/aclocal': ['ACLOCAL_PATH'],
'include': ['CPATH'],
'lib/pkgconfig': ['PKG_CONFIG_PATH'],
'lib64/pkgconfig': ['PKG_CONFIG_PATH'],
'share/pkgconfig': ['PKG_CONFIG_PATH'],
'': ['CMAKE_PREFIX_PATH']
}
if platform == 'darwin':
for subdir in ('lib', 'lib64'):
inspections[subdir].append('DYLD_FALLBACK_LIBRARY_PATH')
return inspections
def unconditional_environment_modifications(view):
"""List of environment (shell) modifications to be processed for view.
This list does not depend on the specs in this environment"""
env = environment.EnvironmentModifications()
for subdir, vars in prefix_inspections(sys.platform).items():
full_subdir = os.path.join(view.root, subdir)
for var in vars:
env.prepend_path(var, full_subdir)
return env
def environment_modifications_for_spec(spec, view=None):
"""List of environment (shell) modifications to be processed for spec.
This list is specific to the location of the spec or its projection in
the view."""
spec = spec.copy()
if view and not spec.external:
spec.prefix = prefix.Prefix(view.view().get_projection_for_spec(spec))
# generic environment modifications determined by inspecting the spec
# prefix
env = environment.inspect_path(
spec.prefix,
prefix_inspections(spec.platform),
exclude=environment.is_system_path
)
# Let the extendee/dependency modify their extensions/dependents
# before asking for package-specific modifications
env.extend(
build_env.modifications_from_dependencies(
spec, context='run'
)
)
# Package specific modifications
build_env.set_module_variables_for_package(spec.package)
spec.package.setup_run_environment(env)
return env
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