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# 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
"""
Common support for various job types. These functions are all named after the
worker implementation they operate on, and take the same three parameters, for
consistency.
"""
from taskgraph.util.keyed_by import evaluate_keyed_by
from taskgraph.util.taskcluster import get_artifact_prefix
SECRET_SCOPE = "secrets:get:project/releng/{trust_domain}/{kind}/level-{level}/{secret}"
def add_cache(job, taskdesc, name, mount_point, skip_untrusted=False):
"""Adds a cache based on the worker's implementation.
Args:
job (dict): Task's job description.
taskdesc (dict): Target task description to modify.
name (str): Name of the cache.
mount_point (path): Path on the host to mount the cache.
skip_untrusted (bool): Whether cache is used in untrusted environments
(default: False). Only applies to docker-worker.
"""
if not job["run"].get("use-caches", True):
return
worker = job["worker"]
if worker["implementation"] == "docker-worker":
taskdesc["worker"].setdefault("caches", []).append(
{
"type": "persistent",
"name": name,
"mount-point": mount_point,
"skip-untrusted": skip_untrusted,
}
)
elif worker["implementation"] == "generic-worker":
taskdesc["worker"].setdefault("mounts", []).append(
{
"cache-name": name,
"directory": mount_point,
}
)
else:
# Caches not implemented
pass
def add_artifacts(config, job, taskdesc, path):
taskdesc["worker"].setdefault("artifacts", []).append(
{
"name": get_artifact_prefix(taskdesc),
"path": path,
"type": "directory",
}
)
def docker_worker_add_artifacts(config, job, taskdesc):
"""Adds an artifact directory to the task"""
path = "{workdir}/artifacts/".format(**job["run"])
taskdesc["worker"].setdefault("env", {})["UPLOAD_DIR"] = path
add_artifacts(config, job, taskdesc, path)
def generic_worker_add_artifacts(config, job, taskdesc):
"""Adds an artifact directory to the task"""
# The path is the location on disk; it doesn't necessarily
# mean the artifacts will be public or private; that is set via the name
# attribute in add_artifacts.
path = get_artifact_prefix(taskdesc)
taskdesc["worker"].setdefault("env", {})["UPLOAD_DIR"] = path
add_artifacts(config, job, taskdesc, path=path)
def support_vcs_checkout(config, job, taskdesc, sparse=False):
"""Update a job/task with parameters to enable a VCS checkout.
This can only be used with ``run-task`` tasks, as the cache name is
reserved for ``run-task`` tasks.
"""
worker = job["worker"]
is_mac = worker["os"] == "macosx"
is_win = worker["os"] == "windows"
is_linux = worker["os"] == "linux" or "linux-bitbar"
is_docker = worker["implementation"] == "docker-worker"
assert is_mac or is_win or is_linux
if is_win:
checkoutdir = "./build"
geckodir = f"{checkoutdir}/src"
hgstore = "y:/hg-shared"
elif is_docker:
checkoutdir = "{workdir}/checkouts".format(**job["run"])
geckodir = f"{checkoutdir}/gecko"
hgstore = f"{checkoutdir}/hg-store"
else:
checkoutdir = "./checkouts"
geckodir = f"{checkoutdir}/gecko"
hgstore = f"{checkoutdir}/hg-shared"
cache_name = "checkouts"
# Sparse checkouts need their own cache because they can interfere
# with clients that aren't sparse aware.
if sparse:
cache_name += "-sparse"
# Workers using Mercurial >= 5.8 will enable revlog-compression-zstd, which
# workers using older versions can't understand, so they can't share cache.
# At the moment, only docker workers use the newer version.
if is_docker:
cache_name += "-hg58"
add_cache(job, taskdesc, cache_name, checkoutdir)
taskdesc["worker"].setdefault("env", {}).update(
{
"GECKO_BASE_REPOSITORY": config.params["base_repository"],
"GECKO_HEAD_REPOSITORY": config.params["head_repository"],
"GECKO_HEAD_REV": config.params["head_rev"],
"HG_STORE_PATH": hgstore,
}
)
taskdesc["worker"]["env"].setdefault("GECKO_PATH", geckodir)
if "comm_base_repository" in config.params:
taskdesc["worker"]["env"].update(
{
"COMM_BASE_REPOSITORY": config.params["comm_base_repository"],
"COMM_HEAD_REPOSITORY": config.params["comm_head_repository"],
"COMM_HEAD_REV": config.params["comm_head_rev"],
}
)
elif job["run"].get("comm-checkout", False):
raise Exception(
"Can't checkout from comm-* repository if not given a repository."
)
# Give task access to hgfingerprint secret so it can pin the certificate
# for hg.mozilla.org.
taskdesc["scopes"].append("secrets:get:project/taskcluster/gecko/hgfingerprint")
taskdesc["scopes"].append("secrets:get:project/taskcluster/gecko/hgmointernal")
# only some worker platforms have taskcluster-proxy enabled
if job["worker"]["implementation"] in ("docker-worker",):
taskdesc["worker"]["taskcluster-proxy"] = True
def generic_worker_hg_commands(
base_repo, head_repo, head_rev, path, sparse_profile=None
):
"""Obtain commands needed to obtain a Mercurial checkout on generic-worker.
Returns two command strings. One performs the checkout. Another logs.
"""
args = [
r'"c:\Program Files\Mercurial\hg.exe"',
"robustcheckout",
"--sharebase",
r"y:\hg-shared",
"--purge",
"--upstream",
base_repo,
"--revision",
head_rev,
]
if sparse_profile:
args.extend(["--config", "extensions.sparse="])
args.extend(["--sparseprofile", sparse_profile])
args.extend(
[
head_repo,
path,
]
)
logging_args = [
b":: TinderboxPrint:<a href={source_repo}/rev/{revision} "
b"title='Built from {repo_name} revision {revision}'>{revision}</a>"
b"\n".format(
revision=head_rev, source_repo=head_repo, repo_name=head_repo.split("/")[-1]
),
]
return [" ".join(args), " ".join(logging_args)]
def setup_secrets(config, job, taskdesc):
"""Set up access to secrets via taskcluster-proxy. The value of
run['secrets'] should be a boolean or a list of secret names that
can be accessed."""
if not job["run"].get("secrets"):
return
taskdesc["worker"]["taskcluster-proxy"] = True
secrets = job["run"]["secrets"]
if secrets is True:
secrets = ["*"]
for secret in secrets:
taskdesc["scopes"].append(
SECRET_SCOPE.format(
trust_domain=config.graph_config["trust-domain"],
kind=job["treeherder"]["kind"],
level=config.params["level"],
secret=secret,
)
)
def add_tooltool(config, job, taskdesc, internal=False):
"""Give the task access to tooltool.
Enables the tooltool cache. Adds releng proxy. Configures scopes.
By default, only public tooltool access will be granted. Access to internal
tooltool can be enabled via ``internal=True``.
This can only be used with ``run-task`` tasks, as the cache name is
reserved for use with ``run-task``.
"""
if job["worker"]["implementation"] in ("docker-worker",):
add_cache(
job,
taskdesc,
"tooltool-cache",
"{workdir}/tooltool-cache".format(**job["run"]),
)
taskdesc["worker"].setdefault("env", {}).update(
{
"TOOLTOOL_CACHE": "{workdir}/tooltool-cache".format(**job["run"]),
}
)
elif not internal:
return
taskdesc["worker"]["taskcluster-proxy"] = True
taskdesc["scopes"].extend(
[
"project:releng:services/tooltool/api/download/public",
]
)
if internal:
taskdesc["scopes"].extend(
[
"project:releng:services/tooltool/api/download/internal",
]
)
def get_expiration(config, policy="default"):
expires = evaluate_keyed_by(
config.graph_config["expiration-policy"],
"artifact expiration",
{"project": config.params["project"]},
)[policy]
return expires