From db13bcfcd81be7c86a27b55ed70fc63749e989b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niko=20Heikkil=C3=A4?= <niko.heikkila@futurice.com>
Date: Sun, 30 Jan 2022 14:53:30 +0200
Subject: [PATCH] feat(cli): add -V|--version option

---
 install.sh             |  1 +
 publicator/__init__.py | 12 +++++++++++-
 publicator/cli.py      | 15 +++++++++++++--
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/install.sh b/install.sh
index be4e183..92394f2 100755
--- a/install.sh
+++ b/install.sh
@@ -15,4 +15,5 @@ for wheel in dist/*.whl; do
 done
 
 echo "Testing executable"
+publicator --version
 publicator --help
diff --git a/publicator/__init__.py b/publicator/__init__.py
index 3dc1f76..41b473f 100644
--- a/publicator/__init__.py
+++ b/publicator/__init__.py
@@ -1 +1,11 @@
-__version__ = "0.1.0"
+from importlib import metadata
+
+name = "publicator"
+
+
+def display_name() -> str:
+    return name.capitalize()
+
+
+def version() -> str:
+    return f"{display_name()} v{metadata.version(name)}"
diff --git a/publicator/cli.py b/publicator/cli.py
index c90c56f..51646a4 100644
--- a/publicator/cli.py
+++ b/publicator/cli.py
@@ -1,13 +1,23 @@
 import os
 from typing import Optional
+
 import typer
 
-from publicator import git, github, poetry, config
+import publicator
+from publicator import config, git, github, poetry
 from publicator.semver import Semver
 
 preview = os.environ.get("PUBLICATOR_PREVIEW")
 configuration = config.factory()
-app = typer.Typer(name="publicator")
+app = typer.Typer(name=publicator.name)
+
+
+def version_callback(value: bool) -> None:
+    if not value:
+        return
+
+    typer.secho(f"🦄 {publicator.version()}", fg=typer.colors.BRIGHT_BLUE, bold=True)
+    raise typer.Exit()
 
 
 @app.command()
@@ -17,6 +27,7 @@ def cli(
         metavar="version",
         help="can be a valid semver or one of: patch, minor, major, prepatch, preminor, premajor, prerelease",
     ),
+    version: Optional[bool] = typer.Option(None, "--version", "-V", callback=version_callback, is_eager=True),
     repository: Optional[str] = typer.Option(
         default=configuration.get("repository"),
         metavar="name",