# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1735916738 -3600
# Node ID b39f8082ced1e7c539fba1712d092674c661e551
# Parent  492975912cadc7a2a7f823233ad807258b2dc442
Make a "version" subcommand to also print the program's version number for "treesum"

diff -r 492975912cad -r b39f8082ced1 cutils/treesum.py
--- a/cutils/treesum.py	Fri Jan 03 16:05:11 2025 +0100
+++ b/cutils/treesum.py	Fri Jan 03 16:05:38 2025 +0100
@@ -117,8 +117,20 @@
                     "This is an alias to \"generate\".")
     _populate_generate_arguments(genparser2)
 
+    vparser = subparsers.add_parser(
+        "version",
+        help="Show the program's version number and exit",
+        description="Show the program's version number and exit.")
+    vparser.add_argument(
+        "args", nargs=argparse.REMAINDER, help="IGNORED.")
+
     opts = parser.parse_args(args=argv)
 
+    if opts.subcommand == "version":
+        print("%s (rv:%s)" % (__version__, __revision__),
+              file=sys.stdout)
+        sys.exit(0)
+
     if not opts.algorithm:
         opts.algorithm = util.argv2algo("blake2b-256")