add runtime version information

2 files changed, 13 insertions, 0 deletions

diff --git a/cgitize/main.py b/cgitize/main.py
index e787861..879e07d 100644
--- a/cgitize/main.py
+++ b/cgitize/main.py
@@ -10,6 +10,7 @@ import sys
 from cgitize.cgit import CGitRepositories, CGitServer
 from cgitize.config import Config
 from cgitize.utils import setup_logging
+from cgitize.version import __version__
 
 
 def parse_args(argv=None):
@@ -26,6 +27,8 @@ def parse_args(argv=None):
                         help='overwrite existing repositories')
     parser.add_argument('--verbose', '-v', action='store_true',
                         help='verbose log output')
+    parser.add_argument('--version', '-V', action='version',
+                        version=f'%(prog)s {__version__}')
     return parser.parse_args(argv)
 
 
diff --git a/cgitize/version.py b/cgitize/version.py
new file mode 100644
index 0000000..5543f34
--- /dev/null
+++ b/cgitize/version.py
@@ -0,0 +1,10 @@
+try:
+    import importlib.metadata as metadata
+except ImportError:
+    import importlib_metadata as metadata
+
+
+try:
+    __version__ = metadata.version('cgitize')
+except Exception:
+    __version__ = 'unknown'