policy: T3631: migrate "set extcommunity-rt|soo" to "set extcommunity rt|soo"

migrate "set extcommunity-rt" and "set extcommunity-soo" to "set extcommunity
rt|soo" to match FRR syntax. This also makes it easier to implement the
"bandwidth" extended community.

1 files changed, 65 insertions, 0 deletions

diff --git a/src/migration-scripts/policy/0-to-1 b/src/migration-scripts/policy/0-to-1
new file mode 100755
index 000000000..7134920ad
--- /dev/null
+++ b/src/migration-scripts/policy/0-to-1
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+# T3631: route-map: migrate "set extcommunity-rt" and "set extcommunity-soo"
+#        to "set extcommunity rt|soo" to match FRR syntax
+
+
+from sys import argv
+from sys import exit
+
+from vyos.configtree import ConfigTree
+
+if (len(argv) < 1):
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+base = ['policy', 'route-map']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+
+
+for route_map in config.list_nodes(base):
+    if not config.exists(base + [route_map, 'rule']):
+        continue
+    for rule in config.list_nodes(base + [route_map, 'rule']):
+        base_rule = base + [route_map, 'rule', rule]
+
+        if config.exists(base_rule + ['set', 'extcommunity-rt']):
+            tmp = config.return_value(base_rule + ['set', 'extcommunity-rt'])
+            config.delete(base_rule + ['set', 'extcommunity-rt'])
+            config.set(base_rule + ['set', 'extcommunity', 'rt'], value=tmp)
+
+
+        if config.exists(base_rule + ['set', 'extcommunity-soo']):
+            tmp = config.return_value(base_rule + ['set', 'extcommunity-soo'])
+            config.delete(base_rule + ['set', 'extcommunity-soo'])
+            config.set(base_rule + ['set', 'extcommunity', 'soo'], value=tmp)
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print(f'Failed to save the modified config: {e}')
+    exit(1)