Provide more info about plugin in deprecation message (#81719)

Provide more information about plugin usage which needs to be
used instead of the deprecated plugin in the deprecation message.

Fixes: #80561

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

changelogs/fragments/80561.yml

@@ -0,0 +1,3 @@
+---
+bugfixes:
+- Provide additional information about the alternative plugin in the deprecation message (https://github.com/ansible/ansible/issues/80561).

lib/ansible/plugins/loader.py

@@ -1173,24 +1173,22 @@ class Jinja2Loader(PluginLoader):
             # check deprecations
             deprecation_entry = routing_entry.get('deprecation')
             if deprecation_entry:
-                warning_text = deprecation_entry.get('warning_text')
+                warning_text = deprecation_entry.get('warning_text') or ''
                 removal_date = deprecation_entry.get('removal_date')
                 removal_version = deprecation_entry.get('removal_version')
 
-                if not warning_text:
-                    warning_text = '{0} "{1}" is deprecated'.format(self.type, key)
+                warning_text = f'{self.type.title()} "{key}" has been deprecated.{" " if warning_text else ""}{warning_text}'
 
                 display.deprecated(warning_text, version=removal_version, date=removal_date, collection_name=acr.collection)
 
             # check removal
             tombstone_entry = routing_entry.get('tombstone')
             if tombstone_entry:
-                warning_text = tombstone_entry.get('warning_text')
+                warning_text = tombstone_entry.get('warning_text') or ''
                 removal_date = tombstone_entry.get('removal_date')
                 removal_version = tombstone_entry.get('removal_version')
 
-                if not warning_text:
-                    warning_text = '{0} "{1}" has been removed'.format(self.type, key)
+                warning_text = f'{self.type.title()} "{key}" has been removed.{" " if warning_text else ""}{warning_text}'
 
                 exc_msg = display.get_deprecation_message(warning_text, version=removal_version, date=removal_date,
                                                           collection_name=acr.collection, removed=True)

test/integration/targets/collections/runme.sh

@@ -72,8 +72,11 @@ cat out.txt
 
 test "$(grep out.txt -ce 'deprecation1' -ce 'deprecation2' -ce 'deprecation3')" == 3
 grep out.txt -e 'redirecting (type: filter) testns.testredirect.multi_redirect_filter to testns.testredirect.redirect_filter1'
+grep out.txt -e 'Filter "testns.testredirect.multi_redirect_filter"'
 grep out.txt -e 'redirecting (type: filter) testns.testredirect.redirect_filter1 to testns.testredirect.redirect_filter2'
+grep out.txt -e 'Filter "testns.testredirect.redirect_filter1"'
 grep out.txt -e 'redirecting (type: filter) testns.testredirect.redirect_filter2 to testns.testcoll.testfilter'
+grep out.txt -e 'Filter "testns.testredirect.redirect_filter2"'
 
 echo "--- validating collections support in playbooks/roles"
 # run test playbooks