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-rw-r--r--python/vyos/defaults.py2
-rw-r--r--python/vyos/systemversions.py28
2 files changed, 28 insertions, 2 deletions
diff --git a/python/vyos/defaults.py b/python/vyos/defaults.py
index dedb929b4..a2ad142bc 100644
--- a/python/vyos/defaults.py
+++ b/python/vyos/defaults.py
@@ -29,6 +29,8 @@ cfg_vintage = 'vyatta'
commit_lock = '/opt/vyatta/config/.lock'
+version_file = '/usr/share/vyos/component-versions.json'
+
https_data = {
'listen_addresses' : { '*': ['_'] }
}
diff --git a/python/vyos/systemversions.py b/python/vyos/systemversions.py
index 9b3f4f413..5c4deca29 100644
--- a/python/vyos/systemversions.py
+++ b/python/vyos/systemversions.py
@@ -16,12 +16,15 @@
import os
import re
import sys
+import json
+
import vyos.defaults
def get_system_versions():
"""
- Get component versions from running system; critical failure if
- unable to read migration directory.
+ Get component versions from running system: read vyatta directory
+ structure for versions, then read vyos JSON file. It is a critical
+ error if either migration directory or JSON file is unreadable.
"""
system_versions = {}
@@ -36,4 +39,25 @@ def get_system_versions():
pair = info.split('@')
system_versions[pair[0]] = int(pair[1])
+ version_dict = {}
+ path = vyos.defaults.version_file
+
+ if os.path.isfile(path):
+ with open(path, 'r') as f:
+ try:
+ version_dict = json.load(f)
+ except ValueError as err:
+ print(f"\nValue error in {path}: {err}")
+ sys.exit(1)
+
+ for k, v in version_dict.items():
+ if not isinstance(v, int):
+ print(f"\nType error in {path}; expecting Dict[str, int]")
+ sys.exit(1)
+ existing = system_versions.get(k)
+ if existing is None:
+ system_versions[k] = v
+ elif v > existing:
+ system_versions[k] = v
+
return system_versions