Adds versioning

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "colint"
-version = "0.2"
+version = "0.2.1"
 description = ""
 authors = [
     { name = "Davide Colì", email = "davide.coli@secomind.com" },

src/colint/colinter.py

@@ -9,6 +9,7 @@
 from .newline_fix.newline_fix import newline_fix
 from .params.params import Params
 from .sort_libraries.sorter import sort_imports
+from .utils.versioning import get_versioning
 
 config_file = Path(__file__).parent / "config.toml"
 params = Params.from_toml(config_file)
@@ -138,6 +139,13 @@ def main():
         help="Include notebook cleaning in lint command",
     )
 
+    parser.add_argument(
+        "--version",
+        action="version",
+        version=get_versioning(),
+        help="Show program's version number and exit.",
+    )
+
     args = parser.parse_args()
     run_tool(args)
 

src/colint/utils/versioning.py

@@ -0,0 +1,32 @@
+import os
+from importlib.metadata import PackageNotFoundError, version
+
+from git import Repo
+
+
+def _get_version_str() -> str:
+    try:
+        return version("colint")
+    except PackageNotFoundError:
+        return "(version info not found)"
+
+
+def _get_last_commit_date():
+    try:
+        repo = Repo(
+            os.path.dirname(os.path.abspath(__file__)), search_parent_directories=True
+        )
+        commit = next(repo.iter_commits("HEAD", max_count=1))
+        return commit.committed_datetime.strftime("%Y-%m-%d")
+    except Exception:
+        return "unknown"
+
+
+def get_versioning() -> str:
+    """Get versioning string with the package version and last commit date.
+
+    Returns:
+        str: A string containing the package name, version, and the date of the
+             last commit.
+    """
+    return f"colint {_get_version_str()} (last updated: {_get_last_commit_date()})"