T5658: add common methods interface_list() and vrf_list() to vyos.utils.network

Reduce amount of duplicated (3 times) code in op-mode scripts for ping,
traceroute and mtr.

(cherry picked from commit 7b27a20c8664460482301cc8d7554048f152485e)

3 files changed, 13 insertions, 68 deletions

diff --git a/src/op_mode/mtr.py b/src/op_mode/mtr.py
index 759f7078c..57aab5389 100644
--- a/src/op_mode/mtr.py
+++ b/src/op_mode/mtr.py
@@ -14,29 +14,13 @@
 # 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
 import socket
 import ipaddress
-from vyos.utils.network import get_all_vrfs
-from vyos.ifconfig import Section
-
-
-def interface_list() -> list:
-    """
-    Get list of interfaces in system
-    :rtype: list
-    """
-    return Section.interfaces()
-
-
-def vrf_list() -> list:
-    """
-    Get list of VRFs in system
-    :rtype: list
-    """
-    return list(get_all_vrfs().keys())
 
+from vyos.utils.network import interface_list
+from vyos.utils.network import vrf_list
+from vyos.utils.process import call
 
 options = {
     'report': {
@@ -214,7 +198,6 @@ mtr = {
     6: '/bin/mtr -6',
 }
 
-
 class List(list):
     def first(self):
         return self.pop(0) if self else ''
@@ -337,6 +320,4 @@ if __name__ == '__main__':
         sys.exit(f'mtr: Unknown host: {host}')
 
     command = convert(mtr[version], args)
-
-    # print(f'{command} {host}')
-    os.system(f'{command} {host}')
+    call(f'{command} --curses --displaymode 0 {host}')
diff --git a/src/op_mode/ping.py b/src/op_mode/ping.py
index f1d87a118..583d8792c 100755
--- a/src/op_mode/ping.py
+++ b/src/op_mode/ping.py
@@ -1,6 +1,6 @@
 #! /usr/bin/env python3
 
-# Copyright (C) 2020 VyOS maintainers and contributors
+# Copyright (C) 2023 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
@@ -14,29 +14,13 @@
 # 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
 import socket
 import ipaddress
-from vyos.utils.network import get_all_vrfs
-from vyos.ifconfig import Section
-
-
-def interface_list() -> list:
-    """
-    Get list of interfaces in system
-    :rtype: list
-    """
-    return Section.interfaces()
-
-
-def vrf_list() -> list:
-    """
-    Get list of VRFs in system
-    :rtype: list
-    """
-    return list(get_all_vrfs().keys())
 
+from vyos.utils.network import interface_list
+from vyos.utils.network import vrf_list
+from vyos.utils.process import call
 
 options = {
     'audible': {
@@ -295,6 +279,4 @@ if __name__ == '__main__':
         sys.exit(f'ping: Unknown host: {host}')
 
     command = convert(ping[version], args)
-
-    # print(f'{command} {host}')
-    os.system(f'{command} {host}')
+    call(f'{command} {host}')
diff --git a/src/op_mode/traceroute.py b/src/op_mode/traceroute.py
index 2f0edf53a..d2bac3f7c 100755
--- a/src/op_mode/traceroute.py
+++ b/src/op_mode/traceroute.py
@@ -14,29 +14,13 @@
 # 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
 import socket
 import ipaddress
-from vyos.utils.network import get_all_vrfs
-from vyos.ifconfig import Section
-
-
-def interface_list() -> list:
-    """
-    Get list of interfaces in system
-    :rtype: list
-    """
-    return Section.interfaces()
-
-
-def vrf_list() -> list:
-    """
-    Get list of VRFs in system
-    :rtype: list
-    """
-    return list(get_all_vrfs().keys())
 
+from vyos.utils.network import interface_list
+from vyos.utils.network import vrf_list
+from vyos.utils.process import call
 
 options = {
     'backward-hops': {
@@ -251,6 +235,4 @@ if __name__ == '__main__':
         sys.exit(f'traceroute: Unknown host: {host}')
 
     command = convert(traceroute[version], args)
-
-    # print(f'{command} {host}')
-    os.system(f'{command} {host}')
+    call(f'{command} {host}')