Version 2.8.0

docs/changelog.md

@@ -1,6 +1,18 @@
 # Changelog
 
 
+## 2.8.0 (2024-11-10)
+
+* [#76](https://github.com/miaow2/netbox-config-diff/issues/76) Add in NetBox 4.0 and higher some statistics for diff
+* [#81](https://github.com/miaow2/netbox-config-diff/issues/81) Fix error in rendering config with several substitutes
+* [#84](https://github.com/miaow2/netbox-config-diff/issues/84) Strip multiple empty lines in configs
+
+## 2.7.0 (2024-09-29)
+
+* [#79](https://github.com/miaow2/netbox-config-diff/issues/79) Add support for NetBox 4.1
+
+This release drops support for NetBox 3.6.
+
 ## 2.6.0 (2024-07-14)
 
 * [#62](https://github.com/miaow2/netbox-config-diff/issues/62) Add support for NetBox 4.0

docs/colliecting-diffs.md

@@ -42,6 +42,9 @@ If you have configs in NetBox DataSource, you can define it, the script instead
 !!! note
     Only synced DataSources are acceptable
 
+!!! note
+    Diff replaces sequences of 3 or more empty lines with one empty line
+
 If in your DataSource config names are different from the hostnames of the devices, you can specify config name with Jinja2 template in `Name template` field.
  Reference device with `{{ object }}` variable.
 

netbox_config_diff/__init__.py

@@ -8,7 +8,7 @@
 
 __author__ = "Artem Kotik"
 __email__ = "[email protected]"
-__version__ = "2.7.0"
+__version__ = "2.8.0"
 
 
 class ConfigDiffConfig(PluginConfig):

netbox_config_diff/compliance/utils.py

@@ -40,8 +40,8 @@ def __init__(self, choices, *args, **kwargs):
 
 def get_unified_diff(rendered_config: str, actual_config: str, device: str) -> str:
     diff = unified_diff(
-        actual_config.splitlines(),
-        rendered_config.strip().splitlines(),
+        re.sub("\n{3,}", "\n", actual_config).splitlines(),
+        re.sub("\n{3,}", "\n", rendered_config).strip().splitlines(),
         fromfiledate=device,
         tofiledate=device,
         lineterm="",
@@ -60,3 +60,16 @@ def get_remediation_commands(name: str, platform: str, actual_config: str, rende
     host.load_running_config(config_text=actual_config)
     host.load_generated_config(config_text=rendered_config)
     return host.remediation_config_filtered_text(include_tags={}, exclude_tags={})
+
+
+def get_diff_statistics(diff: str) -> tuple[int, int]:
+    lines_added = 0
+    lines_deleted = 0
+
+    for line in diff.splitlines():
+        if line.startswith("+") and not line.startswith("+++"):
+            lines_added += 1
+        elif line.startswith("-") and not line.startswith("---"):
+            lines_deleted += 1
+
+    return lines_added, lines_deleted

netbox_config_diff/configurator/base.py

@@ -137,12 +137,15 @@ async def _collect_one_diff(self, device: ConfiguratorDeviceDataClass) -> None:
 
             device.diff = get_unified_diff(device.rendered_config, device.actual_config, device.name)
             self.logger.add_diff(device.name, diff=device.diff)
-            device.missing = diff_network_config(
-                device.rendered_config, device.actual_config, PLATFORM_MAPPING[device.platform]
-            )
-            device.extra = diff_network_config(
-                device.actual_config, device.rendered_config, PLATFORM_MAPPING[device.platform]
-            )
+            try:
+                device.missing = diff_network_config(
+                    device.rendered_config, device.actual_config, PLATFORM_MAPPING[device.platform]
+                )
+                device.extra = diff_network_config(
+                    device.actual_config, device.rendered_config, PLATFORM_MAPPING[device.platform]
+                )
+            except Exception as e:
+                self.logger.log_warning(f"Unable to get missing/extra commands for {device.name}: {e}")
             device.patch = get_remediation_commands(
                 device.name, device.platform, device.actual_config, device.rendered_config
             )

netbox_config_diff/configurator/platforms.py

@@ -46,15 +46,15 @@ def _render_substituted_config(
 
         replace_sections = [(name, re.search(pattern=pattern, string=source_config)) for name, pattern in substitutes]
 
-        rendered_config = ""
+        rendered_config = config_template
         for name, replace_section in replace_sections:
             if not replace_section:
-                msg = f"substitution pattern {name} was unable to find a match in the target config" " source"
+                msg = f"substitution pattern {name} was unable to find a match in the target configsource"
                 self.logger.critical(msg)
                 raise TemplateError(msg)
 
             replace_group = replace_section.group()
-            rendered_config = config_template.replace(f"{{{{ {name} }}}}", replace_group)
+            rendered_config = rendered_config.replace(f"{{{{ {name} }}}}", replace_group)
 
         # remove any totally empty lines (from bad regex, or just device spitting out lines w/
         # nothing on it

netbox_config_diff/templates/netbox_config_diff/configcompliance/data.html

@@ -35,7 +35,14 @@ <h5 class="card-header">Error</h5>
     <div class="row mb-3">
       <div class="col col-md-12">
         <div class="card">
-          <h5 class="card-header">Diff</h5>
+          <h2 class="card-header">Diff
+            {% if version|first != "3" and statistics %}
+              <div class="card-actions">
+                <span style="color: #1a7f37;">{{ statistics.0 }}</span> line(s) missing,
+                <span style="color: #d1242f;">{{ statistics.1 }}</span> extra line(s)
+              </div>
+            {% endif %}
+          </h2>
           <div class="card-body" id="diffElement"></div>
         </div>
       </div>

netbox_config_diff/views/compliance.py

@@ -5,6 +5,7 @@
 from netbox.views import generic
 from utilities.views import ViewTab, register_model_view
 
+from netbox_config_diff.compliance.utils import get_diff_statistics
 from netbox_config_diff.filtersets import ConfigComplianceFilterSet, PlatformSettingFilterSet
 from netbox_config_diff.forms import (
     ConfigComplianceFilterForm,
@@ -25,10 +26,14 @@ class ConfigComplianceView(generic.ObjectView):
     template_name = "netbox_config_diff/configcompliance/data.html"
 
     def get_extra_context(self, request, instance):
+        statistics = None
+        if instance.diff:
+            statistics = get_diff_statistics(instance.diff)
         return {
             "instance": instance,
             "base_template": self.base_template,
             "version": VERSION,
+            "statistics": statistics,
         }