From 3e7e011a3ed7f3079bebb17aeb54d38142597579 Mon Sep 17 00:00:00 2001
From: Wouter Vanden Hove <wouter@wvhconsulting.org>
Date: Wed, 18 Oct 2023 22:17:31 +0200
Subject: [PATCH 1/4] implement version-flag

---
 rustenv.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/rustenv.py b/rustenv.py
index f2b8aff..bb2c9f8 100644
--- a/rustenv.py
+++ b/rustenv.py
@@ -17,6 +17,7 @@
 from __future__ import annotations
 
 import argparse
+import importlib.metadata
 import os
 import shutil
 import subprocess
@@ -137,18 +138,39 @@ def _new_directory_type(path: str) -> str:
     else:
         return path
 
+def print_version():
+    try:
+        version = importlib.metadata.version(__name__)
+        print(f"Version: {version}")
+    except importlib.metadata.PackageNotFoundError:
+        print("Version information not found.")
+
+
 
 def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser(
         description=__doc__,
         formatter_class=argparse.RawDescriptionHelpFormatter,
     )
+    parser.add_argument(
+        "--version", action="store_true", help="show version information"
+    )
     parser.add_argument(
         'destination',
+        nargs='?',
         type=_new_directory_type,
         help='directory in which to create rustenv',
     )
     args = parser.parse_args(argv)
+
+    if args.version:
+        print_version()
+        return 0
+
+    if not args.destination:
+        parser.error(
+            "'destination' argument is required unless '--version' is specified."
+        )
     create_rustenv(args.destination)
     return 0
 

From 07dc09b0bee3208285e8264597c7db9cbe870885 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Wed, 18 Oct 2023 21:19:50 +0000
Subject: [PATCH 2/4] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 rustenv.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/rustenv.py b/rustenv.py
index bb2c9f8..07717c5 100644
--- a/rustenv.py
+++ b/rustenv.py
@@ -138,13 +138,13 @@ def _new_directory_type(path: str) -> str:
     else:
         return path
 
+
 def print_version():
     try:
         version = importlib.metadata.version(__name__)
-        print(f"Version: {version}")
+        print(f'Version: {version}')
     except importlib.metadata.PackageNotFoundError:
-        print("Version information not found.")
-
+        print('Version information not found.')
 
 
 def main(argv: Sequence[str] | None = None) -> int:
@@ -153,7 +153,7 @@ def main(argv: Sequence[str] | None = None) -> int:
         formatter_class=argparse.RawDescriptionHelpFormatter,
     )
     parser.add_argument(
-        "--version", action="store_true", help="show version information"
+        '--version', action='store_true', help='show version information',
     )
     parser.add_argument(
         'destination',
@@ -169,7 +169,7 @@ def main(argv: Sequence[str] | None = None) -> int:
 
     if not args.destination:
         parser.error(
-            "'destination' argument is required unless '--version' is specified."
+            "'destination' argument is required unless '--version' is specified.",
         )
     create_rustenv(args.destination)
     return 0

From 9692556fe3d5fc3a9085da9e1bdfa1a2b46dff1e Mon Sep 17 00:00:00 2001
From: Wouter Vanden Hove <wouter@wvhconsulting.org>
Date: Thu, 19 Oct 2023 00:19:34 +0200
Subject: [PATCH 3/4] add typing

---
 rustenv.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/rustenv.py b/rustenv.py
index 07717c5..0017e3d 100644
--- a/rustenv.py
+++ b/rustenv.py
@@ -139,12 +139,12 @@ def _new_directory_type(path: str) -> str:
         return path
 
 
-def print_version():
+def print_version() -> None:
     try:
         version = importlib.metadata.version(__name__)
-        print(f'Version: {version}')
+        print(f"Version: {version}")
     except importlib.metadata.PackageNotFoundError:
-        print('Version information not found.')
+        print("Version information not found.")
 
 
 def main(argv: Sequence[str] | None = None) -> int:

From 44e7c620edde8fe19246be4cf50c7ddd22b0d7dd Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Wed, 18 Oct 2023 23:18:11 +0000
Subject: [PATCH 4/4] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 rustenv.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rustenv.py b/rustenv.py
index 0017e3d..945c64d 100644
--- a/rustenv.py
+++ b/rustenv.py
@@ -142,9 +142,9 @@ def _new_directory_type(path: str) -> str:
 def print_version() -> None:
     try:
         version = importlib.metadata.version(__name__)
-        print(f"Version: {version}")
+        print(f'Version: {version}')
     except importlib.metadata.PackageNotFoundError:
-        print("Version information not found.")
+        print('Version information not found.')
 
 
 def main(argv: Sequence[str] | None = None) -> int: