1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
# Copyright 2013-2023 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)
"""Definitions that control how Spack creates Spec hashes."""
import spack.deptypes as dt
import spack.repo
hashes = []
class SpecHashDescriptor:
"""This class defines how hashes are generated on Spec objects.
Spec hashes in Spack are generated from a serialized (e.g., with
YAML) representation of the Spec graph. The representation may only
include certain dependency types, and it may optionally include a
canonicalized hash of the package.py for each node in the graph.
We currently use different hashes for different use cases."""
def __init__(self, depflag: dt.DepFlag, package_hash, name, override=None):
self.depflag = depflag
self.package_hash = package_hash
self.name = name
hashes.append(self)
# Allow spec hashes to have an alternate computation method
self.override = override
@property
def attr(self):
"""Private attribute stored on spec"""
return "_" + self.name
def __call__(self, spec):
"""Run this hash on the provided spec."""
return spec.spec_hash(self)
#: Spack's deployment hash. Includes all inputs that can affect how a package is built.
dag_hash = SpecHashDescriptor(depflag=dt.BUILD | dt.LINK | dt.RUN, package_hash=True, name="hash")
#: Hash descriptor used only to transfer a DAG, as is, across processes
process_hash = SpecHashDescriptor(
depflag=dt.BUILD | dt.LINK | dt.RUN | dt.TEST, package_hash=True, name="process_hash"
)
def _content_hash_override(spec):
pkg_cls = spack.repo.PATH.get_pkg_class(spec.name)
pkg = pkg_cls(spec)
return pkg.content_hash()
#: Package hash used as part of dag hash
package_hash = SpecHashDescriptor(
depflag=0, package_hash=True, name="package_hash", override=_content_hash_override
)
# Deprecated hash types, no longer used, but needed to understand old serialized
# spec formats
full_hash = SpecHashDescriptor(
depflag=dt.BUILD | dt.LINK | dt.RUN, package_hash=True, name="full_hash"
)
build_hash = SpecHashDescriptor(
depflag=dt.BUILD | dt.LINK | dt.RUN, package_hash=False, name="build_hash"
)
|
