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# Copyright (C) 2019 Bloomberg Finance LP
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <>.
# Pylint doesn't play well with fixtures and dependency injection from pytest
# pylint: disable=redefined-outer-name
import os
import pytest
from buildstream.testing import cli_remote_execution as cli # pylint: disable=unused-import
from buildstream.testing import create_repo
from buildstream import _yaml
from tests.testutils import generate_junction
pytestmark = pytest.mark.remoteexecution
# Project directory
DATA_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "project",)
def configure_project(path, config):
config["name"] = "test"
config["element-path"] = "elements"
_yaml.roundtrip_dump(config, os.path.join(path, "project.conf"))
def create_element(repo, name, path, dependencies, ref=None):
element = {"kind": "import", "sources": [repo.source_config(ref=ref)], "depends": dependencies}
_yaml.roundtrip_dump(element, os.path.join(path, name))
def test_junction_build_remote(cli, tmpdir, datafiles):
project = str(datafiles)
subproject_path = os.path.join(project, "files", "sub-project")
subproject_element_path = os.path.join(subproject_path, "elements")
amhello_files_path = os.path.join(subproject_path, "files")
element_path = os.path.join(project, "elements")
junction_path = os.path.join(element_path, "junction.bst")
# We need a repo for real trackable elements
repo = create_repo("git", str(tmpdir))
ref = repo.create(amhello_files_path)
# ensure that the correct project directory is also listed in the junction
subproject_conf = os.path.join(subproject_path, "project.conf")
with open(subproject_conf) as f:
config =
config = config.format(project_dir=subproject_path)
with open(subproject_conf, "w") as f:
# Create a trackable element to depend on the cross junction element,
# this one has it's ref resolved already
create_element(repo, "sub-target.bst", subproject_element_path, ["autotools/amhello.bst"], ref=ref)
# Create a trackable element to depend on the cross junction element
create_element(repo, "target.bst", element_path, [{"junction": "junction.bst", "filename": "sub-target.bst"}])
# Create a repo to hold the subproject and generate a junction element for it
generate_junction(tmpdir, subproject_path, junction_path, store_ref=False)
# Now create a compose element at the top level
element = {"kind": "compose", "depends": [{"filename": "target.bst", "type": "build"}]}
_yaml.roundtrip_dump(element, os.path.join(element_path, "composed.bst"))
# We're doing remote execution so ensure services are available
services = cli.ensure_services()
assert set(services) == set(["action-cache", "execution", "storage"])
# track the junction first to ensure we have refs
result =, args=["source", "track", "junction.bst"])
# track target to ensure we have refs
result =, args=["source", "track", "--deps", "all", "composed.bst"])
# build
result =, silent=True, args=["build", "composed.bst"])
# Assert that the main target is cached as a result
assert cli.get_element_state(project, "composed.bst") == "cached"