def _concrete_spec_from_args(args):
spec_str, specfile_path = args.spec, args.spec_file
if not spec_str and not specfile_path:
tty.error(
'must provide either spec string or path to YAML or JSON specfile')
sys.exit(1)
if spec_str:
try:
constraints = spack.cmd.parse_specs(spec_str)
spec = spack.store.find(constraints)[0]
spec.concretize()
except SpecError as spec_error:
tty.error('Unable to concretize spec {0}'.format(spec_str))
tty.debug(spec_error)
sys.exit(1)
return spec
return Spec.from_specfile(specfile_path)
