migration: T6007: add util add_system_version to replace *_system_footer

(cherry picked from commit 51865448599ec40283fffe4dc15729f88f389886)

4 files changed, 27 insertions, 21 deletions

diff --git a/python/vyos/component_version.py b/python/vyos/component_version.py
index 648d690b9..1513ac5ed 100644
--- a/python/vyos/component_version.py
+++ b/python/vyos/component_version.py
@@ -191,6 +191,21 @@ def version_info_prune_component(x: VersionInfo, y: VersionInfo) -> VersionInfo:
     """
     x.component = { k: v for k,v in x.component.items() if k in y.component }
 
+def add_system_version(config_str: str = None, out_file: str = None):
+    """
+    Wrap config string with system version and write to out_file.
+    For convenience, calling with no argument will write system version
+    string to stdout, for use in bash scripts.
+    """
+    version_info = version_info_from_system()
+    if config_str is not None:
+        version_info.update_config_body(config_str)
+    version_info.update_footer()
+    if out_file is not None:
+        version_info.write(out_file)
+    else:
+        sys.stdout.write(version_info.write_string())
+
 def from_string(string_line, vintage='vyos'):
     """
     Get component version dictionary from string.
diff --git a/src/helpers/system-versions-foot.py b/src/helpers/add-system-version.py
index 9614f0d28..5270ee7d3 100755
--- a/src/helpers/system-versions-foot.py
+++ b/src/helpers/add-system-version.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python3
 
-# Copyright 2019, 2022 VyOS maintainers and contributors <maintainers@vyos.io>
+# Copyright 2019-2024 VyOS maintainers and contributors <maintainers@vyos.io>
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -15,14 +15,6 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
-import sys
-import vyos.defaults
-from vyos.component_version import write_system_footer
+from vyos.component_version import add_system_version
 
-sys.stdout.write("\n\n")
-if vyos.defaults.cfg_vintage == 'vyos':
-    write_system_footer(None, vintage='vyos')
-elif vyos.defaults.cfg_vintage == 'vyatta':
-    write_system_footer(None, vintage='vyatta')
-else:
-    write_system_footer(None, vintage='vyos')
+add_system_version()
diff --git a/src/helpers/vyos-save-config.py b/src/helpers/vyos-save-config.py
index 518bd9864..fa2ea0ce4 100755
--- a/src/helpers/vyos-save-config.py
+++ b/src/helpers/vyos-save-config.py
@@ -23,7 +23,7 @@ from argparse import ArgumentParser
 
 from vyos.config import Config
 from vyos.remote import urlc
-from vyos.component_version import system_footer
+from vyos.component_version import add_system_version
 from vyos.defaults import directories
 
 DEFAULT_CONFIG_PATH = os.path.join(directories['config'], 'config.boot')
@@ -50,14 +50,13 @@ if re.match(r'\w+:/', save_file):
 config = Config()
 ct = config.get_config_tree(effective=True)
 
+# pylint: disable=consider-using-with
 write_file = save_file if remote_save is None else NamedTemporaryFile(delete=False).name
-with open(write_file, 'w') as f:
-    # config_tree is None before boot configuration is complete;
-    # automated saves should check boot_configuration_complete
-    if ct is not None:
-        f.write(ct.to_string())
-    f.write("\n")
-    f.write(system_footer())
+
+# config_tree is None before boot configuration is complete;
+# automated saves should check boot_configuration_complete
+config_str = None if ct is None else ct.to_string()
+add_system_version(config_str, write_file)
 
 if json_file is not None and ct is not None:
     try:
diff --git a/src/init/vyos-router b/src/init/vyos-router
index 59004fdc1..8825cc16a 100755
--- a/src/init/vyos-router
+++ b/src/init/vyos-router
@@ -134,14 +134,14 @@ init_bootfile () {
     if [ ! -r $DEFAULT_BOOTFILE ]; then
         if [ -f $vyos_data_dir/config.boot.default ]; then
             cp $vyos_data_dir/config.boot.default $DEFAULT_BOOTFILE
-            $vyos_libexec_dir/system-versions-foot.py >> $DEFAULT_BOOTFILE
+            $vyos_libexec_dir/add-system-version.py >> $DEFAULT_BOOTFILE
         fi
     fi
     if [ ! -r $BOOTFILE ] ; then
         if [ -f $DEFAULT_BOOTFILE ]; then
             cp $DEFAULT_BOOTFILE $BOOTFILE
         else
-            $vyos_libexec_dir/system-versions-foot.py > $BOOTFILE
+            $vyos_libexec_dir/add-system-version.py > $BOOTFILE
         fi
         chgrp ${GROUP} $BOOTFILE
         chmod 660 $BOOTFILE