diff options
Diffstat (limited to 'lib/spack/spack/spec.py')
| -rw-r--r-- | lib/spack/spack/spec.py | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py index 8a463c2f78..b7ff676fe2 100644 --- a/lib/spack/spack/spec.py +++ b/lib/spack/spack/spec.py @@ -284,6 +284,22 @@ class ArchSpec(object): self.platform, self.os, self.target = platform_tuple + @staticmethod + def override(init_spec, change_spec): + if init_spec: + new_spec = init_spec.copy() + else: + new_spec = ArchSpec() + if change_spec.platform: + new_spec.platform = change_spec.platform + # TODO: if the platform is changed to something that is incompatible + # with the current os, we should implicitly remove it + if change_spec.os: + new_spec.os = change_spec.os + if change_spec.target: + new_spec.target = change_spec.target + return new_spec + def _autospec(self, spec_like): if isinstance(spec_like, ArchSpec): return spec_like @@ -2243,6 +2259,33 @@ class Spec(object): yield dep_name, dep_hash, list(deptypes), hash_type @staticmethod + def override(init_spec, change_spec): + # TODO: this doesn't account for the case where the changed spec + # (and the user spec) have dependencies + new_spec = init_spec.copy() + package_cls = spack.repo.path.get_pkg_class(new_spec.name) + if change_spec.versions and not change_spec.versions == spack.version.ver(":"): + new_spec.versions = change_spec.versions + for variant, value in change_spec.variants.items(): + if variant in package_cls.variants: + if variant in new_spec.variants: + new_spec.variants.substitute(value) + else: + new_spec.variants[variant] = value + else: + raise ValueError("{0} is not a variant of {1}".format(variant, new_spec.name)) + if change_spec.compiler: + new_spec.compiler = change_spec.compiler + if change_spec.compiler_flags: + for flagname, flagvals in change_spec.compiler_flags.items(): + new_spec.compiler_flags[flagname] = flagvals + if change_spec.architecture: + new_spec.architecture = ArchSpec.override( + new_spec.architecture, change_spec.architecture + ) + return new_spec + + @staticmethod def from_literal(spec_dict, normal=True): """Builds a Spec from a dictionary containing the spec literal. |