add support for import linter to lint tasks

.gitattributes

@@ -0,0 +1 @@
+poetry.lock linguist-generated=true

.import_linter_config

@@ -0,0 +1,2 @@
+[importlinter]
+root_package = exasol.toolbox

doc/changes/unreleased.md

@@ -3,6 +3,7 @@
 ## ✨ Added
 
 * Added cookiecutter-template for creating new project
+* #149: Added import linter and nox task for it
 
 ## 🔩 Internal
 

exasol/toolbox/nox/_lint.py

@@ -1,6 +1,8 @@
 from __future__ import annotations
 
 from typing import Iterable
+import argparse
+from pathlib import Path
 
 import nox
 from nox import Session
@@ -64,6 +66,16 @@ def _security_lint(session: Session, files: Iterable[str]) -> None:
     )
 
 
+def _import_lint(session: Session, path: Path) -> None:
+    session.run(
+        "poetry",
+        "run",
+        "lint-imports",
+        "--config",
+        path
+    )
+
+
 @nox.session(python=False)
 def lint(session: Session) -> None:
     """Runs the linter on the project"""
@@ -83,3 +95,33 @@ def security_lint(session: Session) -> None:
     """Runs the security linter on the project"""
     py_files = [f"{file}" for file in python_files(PROJECT_CONFIG.root)]
     _security_lint(session, list(filter(lambda file: "test" not in file, py_files)))
+
+
+@nox.session(name="import-lint", python=False)
+def import_lint(session: Session) -> None:
+    """Runs the import linter on the project"""
+    parser = argparse.ArgumentParser(
+        usage="nox -s import-lint -- [options]",
+        description="Runs the import linter on the project"
+    )
+    parser.add_argument(
+        "-c",
+        "--config",
+        type=str,
+        help="path to the configuration file for the importlinter",
+        metavar="TEXT"
+    )
+
+    args: argparse.Namespace = parser.parse_args(args=session.posargs)
+    file: str = args.config
+    path: Path | None = None
+    if file is None:
+        path = getattr(PROJECT_CONFIG, "import_linter_config", Path(".import_linter_config"))
+    else:
+        path = Path(file)
+    if not path.exists():
+        session.error(
+            "Please make sure you have a configuration file for the importlinter"
+        )
+    _import_lint(session=session, path=path)
+

noxconfig.py

@@ -34,6 +34,7 @@ class Config:
 
     root: Path = Path(__file__).parent
     doc: Path = Path(__file__).parent / "doc"
+    importlinter: Path = Path(__file__).parent / ".import_linter_config"
     version_file: Path = Path(__file__).parent / "exasol" / "toolbox" / "version.py"
     path_filters: Iterable[str] = ("dist", ".eggs", "venv", "metrics-schema", "project-template", "idioms")
     plugins = [UpdateTemplates]

pyproject.toml

@@ -38,6 +38,7 @@ black = ">=24.1.0"
 coverage = ">=6.4.4,<8.0.0"
 furo = ">=2022.9.15"
 importlib-resources = ">=5.12.0"
+import-linter = "^2.0"
 isort = "^5.12.0"
 mypy = ">=0.971"
 myst-parser = ">=2.0.0,<4"