add a 'version' subcommand

Signed-off-by: JackSlateur <[email protected]>

man/backurne.1

@@ -32,7 +32,9 @@ backurne \- backup Ceph's RBD on Ceph, with Proxmox integration
 .B backurne
 .RI list-mapped
 .I [--json]
-
+.br
+.B backurne
+.RI version
 
 .SH DESCRIPTION
 backurne is a handy tool for backuping RBD's image on RBD.
@@ -111,6 +113,10 @@ List mapped backups.
 By default, a human friendly output is produced. Use
 .I --json
 for machine readable output.
+.IP "\fBversion\fR" 4
+version
+.IP
+Print the current version
 
 .SH BUGS
 No known bugs.

src/backurne/backurne.py

@@ -23,6 +23,9 @@
 from . import stats
 
 
+VERSION = '0.2'
+
+
 class Check:
 	def __init__(self, cluster):
 		self.cluster = cluster
@@ -613,6 +616,7 @@ def get_args():
 	sub.add_parser('check')
 	sub.add_parser('check-snap')
 	sub.add_parser('stats')
+	sub.add_parser('version')
 
 	ls = sub.add_parser('list-mapped')
 	ls.add_argument('--json', action='store_true')
@@ -635,6 +639,8 @@ def main():
 	args = get_args()
 	if args.action == 'stats':
 		stats.print_stats()
+	elif args.action == 'version':
+		print(f'Backurne version {VERSION}')
 	elif args.action == 'check':
 		print_check_results()
 	elif args.action in ('precheck', 'check-snap'):