def test_dependencies():
"""Test merge_dependencies with complex overlapping cases"""
deps1 = ['a', 'b', 'c', 'd', {'pip': ['x', 'y', 'z']}]
deps2 = ['b=2.0.*', 'e', {'pip': ['x==1.0.0', 'w']}]
deps3 = ['f<3', 'a>=4']
out = [
'a', 'a>=4', 'b', 'b=2.0.*', 'c', 'd', 'e', 'f<3', {
'pip': ['w', 'x', 'x==1.0.0', 'y', 'z']
}
]
assert cm.merge_dependencies([deps1, deps2, deps3]) == out
# handling simple duplicates
assert cm.merge_dependencies([['a'], ['a']]) == ['a']
def merge_conda_files(files: List[Path], result_file: Path) -> None:
"""
Merges the given Conda environment files using the conda_merge package, and writes the merged file to disk.
:param files: The Conda environment files to read.
:param result_file: The location where the merge results should be written.
"""
# This code is a slightly modified version of conda_merge. That code can't be re-used easily
# it defaults to writing to stdout
env_definitions = [conda_merge.read_file(str(f)) for f in files]
unified_definition = {}
NAME = "name"
CHANNELS = "channels"
DEPENDENCIES = "dependencies"
name = conda_merge.merge_names(env.get(NAME) for env in env_definitions)
if name:
unified_definition[NAME] = name
try:
channels = conda_merge.merge_channels(
env.get(CHANNELS) for env in env_definitions)
except conda_merge.MergeError:
logging.error("Failed to merge channel priorities.")
raise
if channels:
unified_definition[CHANNELS] = channels
deps = conda_merge.merge_dependencies(
env.get(DEPENDENCIES) for env in env_definitions)
if deps:
unified_definition[DEPENDENCIES] = deps
with result_file.open("w") as f:
ruamel.yaml.dump(unified_definition,
f,
indent=2,
default_flow_style=False)