haystack/test/test_imports.py
Massimiliano Pippi 10c675d534
chore: add license header to all modules (#7675)
* add license header to modules
* check license header at linting time
2024-05-09 13:40:36 +00:00

68 lines
2.7 KiB
Python

# SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
#
# SPDX-License-Identifier: Apache-2.0
import ast
import os
from _ast import Import, ImportFrom
from pathlib import Path
import isort
import toml
from pyproject_parser import PyProject
# Some libraries have different names in the import and in the dependency
# If below test fails due to that, add the library name to the dictionary
LIBRARY_NAMES_TO_MODULE_NAMES = {"python-dateutil": "dateutil"}
# Some standard libraries are not detected by isort. If below test fails due to that, add the library name to the set.
ADDITIONAL_STD_LIBS = {"yaml"}
def test_for_missing_dependencies() -> None:
# We implement this manual check because
# - All tools out there are too powerful because they find all the imports in the haystack package
# - if we import all modules to check the imports we don't find issues with direct dependencies which are also
# sub-dependencies of other dependencies
#### Collect imports
top_level_imports = set()
for path in Path("haystack").glob("**/*.py"):
content = path.read_text(encoding="utf-8")
tree = ast.parse(content)
for item in tree.body:
if isinstance(item, Import):
module = item.names[0].name
elif isinstance(item, ImportFrom) and item.level == 0: # level > 1 are relative imports
module = item.module
else:
# we only care about imports
break
top_level_imports.add(module.split(".")[0])
third_party_modules = {
module
for module in top_level_imports
if isort.place_module(module) == "THIRDPARTY" and module not in ADDITIONAL_STD_LIBS
}
#### Load specified dependencies
parsed = toml.load("pyproject.toml")
# Pyproject complains about our pyproject.toml file, so we need to parse only the dependencies
# We still need `PyProject` to parse the dependencies (think of markers and stuff)
only_dependencies = {"project": {"name": "test", "dependencies": parsed["project"]["dependencies"]}}
project_dependencies = PyProject.project_table_parser.parse(only_dependencies["project"], set_defaults=True)[
"dependencies"
]
project_dependency_modules = set()
for dep in project_dependencies:
if dep.name in LIBRARY_NAMES_TO_MODULE_NAMES:
project_dependency_modules.add(LIBRARY_NAMES_TO_MODULE_NAMES[dep.name])
project_dependency_modules.add(dep.name.replace("-", "_"))
#### And now finally; the check
for module in third_party_modules:
assert module in project_dependency_modules, f"Module {module} is not in the dependencies"