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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from collections import deque
import taskgraph
from taskgraph.transforms.base import TransformSequence
from taskgraph.util.cached_tasks import add_optimization
transforms = TransformSequence()
def order_tasks(config, tasks):
"""Iterate image tasks in an order where parent tasks come first."""
if config.kind == "docker-image":
kind_prefix = "build-docker-image-"
else:
kind_prefix = config.kind + "-"
pending = deque(tasks)
task_labels = {task["label"] for task in pending}
emitted = set()
while True:
try:
task = pending.popleft()
except IndexError:
break
parents = {
task
for task in task.get("dependencies", {}).values()
if task.startswith(kind_prefix)
}
if parents and not emitted.issuperset(parents & task_labels):
pending.append(task)
continue
emitted.add(task["label"])
yield task
def format_task_digest(cached_task):
return "/".join(
[
cached_task["type"],
cached_task["name"],
cached_task["digest"],
]
)
@transforms.add
def cache_task(config, tasks):
if taskgraph.fast:
for task in tasks:
yield task
return
digests = {}
for task in config.kind_dependencies_tasks.values():
if "cached_task" in task.attributes:
digests[task.label] = format_task_digest(task.attributes["cached_task"])
for task in order_tasks(config, tasks):
cache = task.pop("cache", None)
if cache is None:
yield task
continue
dependency_digests = []
for p in task.get("dependencies", {}).values():
if p in digests:
dependency_digests.append(digests[p])
else:
raise Exception(
"Cached task {} has uncached parent task: {}".format(
task["label"], p
)
)
digest_data = cache["digest-data"] + sorted(dependency_digests)
add_optimization(
config,
task,
cache_type=cache["type"],
cache_name=cache["name"],
digest_data=digest_data,
)
digests[task["label"]] = format_task_digest(task["attributes"]["cached_task"])
yield task
|
