def install(self, user_spec, concrete_spec=None, **install_args):
"""Install a single spec into an environment.
This will automatically concretize the single spec, but it won't
affect other as-yet unconcretized specs.
"""
spec = Spec(user_spec)
if self.add(spec):
concrete = concrete_spec if concrete_spec else spec.concretized()
self._add_concrete_spec(spec, concrete)
else:
# spec might be in the user_specs, but not installed.
# TODO: Redo name-based comparison for old style envs
spec = next(s for s in self.user_specs if s.satisfies(user_spec))
concrete = self.specs_by_hash.get(spec.build_hash())
if not concrete:
concrete = spec.concretized()
self._add_concrete_spec(spec, concrete)
self._install(concrete, **install_args)
def _read_lockfile_dict(self, d):
"""Read a lockfile dictionary into this environment."""
roots = d['roots']
self.concretized_user_specs = [Spec(r['spec']) for r in roots]
self.concretized_order = [r['hash'] for r in roots]
json_specs_by_hash = d['concrete_specs']
root_hashes = set(self.concretized_order)
specs_by_hash = {}
for dag_hash, node_dict in json_specs_by_hash.items():
specs_by_hash[dag_hash] = Spec.from_node_dict(node_dict)
for dag_hash, node_dict in json_specs_by_hash.items():
for dep_name, dep_hash, deptypes in (
Spec.dependencies_from_node_dict(node_dict)):
specs_by_hash[dag_hash]._add_dependency(
specs_by_hash[dep_hash], deptypes)
# If we are reading an older lockfile format (which uses dag hashes
# that exclude build deps), we use this to convert the old
# concretized_order to the full hashes (preserving the order)
old_hash_to_new = {}
self.specs_by_hash = {}
for _, spec in specs_by_hash.items():
dag_hash = spec.dag_hash()
build_hash = spec.build_hash()
if dag_hash in root_hashes:
old_hash_to_new[dag_hash] = build_hash
if (dag_hash in root_hashes or build_hash in root_hashes):
self.specs_by_hash[build_hash] = spec
if old_hash_to_new:
# Replace any older hashes in concretized_order with hashes
# that include build deps
self.concretized_order = [
old_hash_to_new.get(h, h) for h in self.concretized_order
]