T7374: add python cli script to compliment executable vyconf_cli

For certain commands, notably 'commit', a python script is preferable to
the more responsive executable vyconf_cli. Criteria are (1) longer
running process, not benefiting from a compiled tool (2) convenience of
integration with the ecosystem, for example pre-/post-commit hooks.

1 files changed, 47 insertions, 0 deletions

diff --git a/src/helpers/vyconf_cli.py b/src/helpers/vyconf_cli.py
new file mode 100755
index 000000000..a159a2678
--- /dev/null
+++ b/src/helpers/vyconf_cli.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2025 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+#
+
+import os
+import sys
+
+from vyos.vyconf_session import VyconfSession
+
+
+pid = os.getppid()
+
+vs = VyconfSession(pid=pid)
+
+script_path = sys.argv[0]
+script_name = os.path.basename(script_path)
+# drop prefix 'vy_' if present
+if script_name.startswith('vy_'):
+    func_name = script_name[3:]
+else:
+    func_name = script_name
+
+if hasattr(vs, func_name):
+    func = getattr(vs, func_name)
+else:
+    sys.exit(f'Call unimplemented: {func_name}')
+
+out = func()
+if isinstance(out, bool):
+    # for use in shell scripts
+    sys.exit(int(not out))
+
+print(out)