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from buildstream import _yaml
from buildstream.testing import create_repo
# generate_junction()
#
# Generates a junction element with a git repository
#
# Args:
# tmpdir: The tmpdir fixture, for storing the generated git repo
# subproject_path: The path for the subproject, to add to the git repo
# junction_path: The location to store the generated junction element
# store_ref: Whether to store the ref in the junction.bst file
#
# Returns:
# (str): The ref
#
def generate_junction(tmpdir, subproject_path, junction_path, *, store_ref=True, options=None):
# Create a repo to hold the subproject and generate
# a junction element for it
#
repo = create_repo("git", str(tmpdir))
source_ref = ref = repo.create(subproject_path)
if not store_ref:
source_ref = None
element = {"kind": "junction", "sources": [repo.source_config(ref=source_ref)]}
if options:
element["config"] = {"options": options}
_yaml.roundtrip_dump(element, junction_path)
return ref
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