feat: Add Pub/Sub topic retention fields (#456)

google/cloud/pubsub_v1/proto/pubsub.proto

@@ -196,6 +196,16 @@ message Topic {
   // Reserved for future use. This field is set only in responses from the
   // server; it is ignored if it is set in any requests.
   bool satisfies_pzs = 7;
+
+  // Indicates the minimum duration to retain a message after it is published to
+  // the topic. If this field is set, messages published to the topic in the
+  // last `message_retention_duration` are always available to subscribers. For
+  // instance, it allows any attached subscription to [seek to a
+  // timestamp](https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time)
+  // that is up to `message_retention_duration` in the past. If this field is
+  // not set, message retention is controlled by settings on individual
+  // subscriptions. Cannot be more than 7 days or less than 10 minutes.
+  google.protobuf.Duration message_retention_duration = 8;
 }
 
 // A message that is published by publishers and consumed by subscribers. The
@@ -740,6 +750,15 @@ message Subscription {
   // FAILED_PRECONDITION. If the subscription is a push subscription, pushes to
   // the endpoint will not be made.
   bool detached = 15;
+
+  // Output only. Indicates the minimum duration for which a message is retained
+  // after it is published to the subscription's topic. If this field is set,
+  // messages published to the subscription's topic in the last
+  // `topic_message_retention_duration` are always available to subscribers. See
+  // the `message_retention_duration` field in `Topic`. This field is set only
+  // in responses from the server; it is ignored if it is set in any requests.
+  google.protobuf.Duration topic_message_retention_duration = 17
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // A policy that specifies how Cloud Pub/Sub retries message delivery.

google/pubsub_v1/services/publisher/async_client.py

@@ -29,6 +29,7 @@
 
 from google.iam.v1 import iam_policy_pb2  # type: ignore
 from google.iam.v1 import policy_pb2  # type: ignore
+from google.protobuf import duration_pb2  # type: ignore
 from google.pubsub_v1.services.publisher import pagers
 from google.pubsub_v1.types import pubsub
 from google.pubsub_v1.types import TimeoutType

google/pubsub_v1/services/publisher/client.py

@@ -34,6 +34,7 @@
 
 from google.iam.v1 import iam_policy_pb2  # type: ignore
 from google.iam.v1 import policy_pb2  # type: ignore
+from google.protobuf import duration_pb2  # type: ignore
 from google.pubsub_v1.services.publisher import pagers
 from google.pubsub_v1.types import pubsub
 from google.pubsub_v1.types import TimeoutType

google/pubsub_v1/types/pubsub.py

@@ -143,6 +143,18 @@ class Topic(proto.Message):
             Reserved for future use. This field is set
             only in responses from the server; it is ignored
             if it is set in any requests.
+        message_retention_duration (google.protobuf.duration_pb2.Duration):
+            Indicates the minimum duration to retain a message after it
+            is published to the topic. If this field is set, messages
+            published to the topic in the last
+            ``message_retention_duration`` are always available to
+            subscribers. For instance, it allows any attached
+            subscription to `seek to a
+            timestamp <https://cloud.google.com/pubsub/docs/replay-overview#seek_to_a_time>`__
+            that is up to ``message_retention_duration`` in the past. If
+            this field is not set, message retention is controlled by
+            settings on individual subscriptions. Cannot be more than 7
+            days or less than 10 minutes.
     """
 
     name = proto.Field(proto.STRING, number=1,)
@@ -153,6 +165,9 @@ class Topic(proto.Message):
     kms_key_name = proto.Field(proto.STRING, number=5,)
     schema_settings = proto.Field(proto.MESSAGE, number=6, message="SchemaSettings",)
     satisfies_pzs = proto.Field(proto.BOOL, number=7,)
+    message_retention_duration = proto.Field(
+        proto.MESSAGE, number=8, message=duration_pb2.Duration,
+    )
 
 
 class PubsubMessage(proto.Message):
@@ -541,6 +556,15 @@ class Subscription(proto.Message):
             ``StreamingPull`` requests will return FAILED_PRECONDITION.
             If the subscription is a push subscription, pushes to the
             endpoint will not be made.
+        topic_message_retention_duration (google.protobuf.duration_pb2.Duration):
+            Output only. Indicates the minimum duration for which a
+            message is retained after it is published to the
+            subscription's topic. If this field is set, messages
+            published to the subscription's topic in the last
+            ``topic_message_retention_duration`` are always available to
+            subscribers. See the ``message_retention_duration`` field in
+            ``Topic``. This field is set only in responses from the
+            server; it is ignored if it is set in any requests.
     """
 
     name = proto.Field(proto.STRING, number=1,)
@@ -562,6 +586,9 @@ class Subscription(proto.Message):
     )
     retry_policy = proto.Field(proto.MESSAGE, number=14, message="RetryPolicy",)
     detached = proto.Field(proto.BOOL, number=15,)
+    topic_message_retention_duration = proto.Field(
+        proto.MESSAGE, number=17, message=duration_pb2.Duration,
+    )
 
 
 class RetryPolicy(proto.Message):

scripts/fixup_pubsub_v1_keywords.py

@@ -42,8 +42,8 @@ class pubsubCallTransformer(cst.CSTTransformer):
           'acknowledge': ('subscription', 'ack_ids', ),
           'create_schema': ('parent', 'schema', 'schema_id', ),
           'create_snapshot': ('name', 'subscription', 'labels', ),
-          'create_subscription': ('name', 'topic', 'push_config', 'ack_deadline_seconds', 'retain_acked_messages', 'message_retention_duration', 'labels', 'enable_message_ordering', 'expiration_policy', 'filter', 'dead_letter_policy', 'retry_policy', 'detached', ),
-          'create_topic': ('name', 'labels', 'message_storage_policy', 'kms_key_name', 'schema_settings', 'satisfies_pzs', ),
+          'create_subscription': ('name', 'topic', 'push_config', 'ack_deadline_seconds', 'retain_acked_messages', 'message_retention_duration', 'labels', 'enable_message_ordering', 'expiration_policy', 'filter', 'dead_letter_policy', 'retry_policy', 'detached', 'topic_message_retention_duration', ),
+          'create_topic': ('name', 'labels', 'message_storage_policy', 'kms_key_name', 'schema_settings', 'satisfies_pzs', 'message_retention_duration', ),
           'delete_schema': ('name', ),
           'delete_snapshot': ('snapshot', ),
           'delete_subscription': ('subscription', ),

tests/unit/gapic/pubsub_v1/test_publisher.py

@@ -35,6 +35,7 @@
 from google.iam.v1 import options_pb2  # type: ignore
 from google.iam.v1 import policy_pb2  # type: ignore
 from google.oauth2 import service_account
+from google.protobuf import duration_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
 from google.pubsub_v1.services.publisher import PublisherAsyncClient