feat: [cloudbuild] add repositoryevent to buildtrigger

packages/google-devtools-cloudbuild/protos/google/devtools/cloudbuild/v1/cloudbuild.proto

@@ -62,6 +62,10 @@ option (google.api.resource_definition) = {
   type: "pubsub.googleapis.com/Topic"
   pattern: "projects/{project}/topics/{topic}"
 };
+option (google.api.resource_definition) = {
+  type: "cloudbuild.googleapis.com/Repository"
+  pattern: "projects/{project}/locations/{location}/connections/{connection}/repositories/{repository}"
+};
 
 // Creates and manages builds on Google Cloud Platform.
 //
@@ -1575,6 +1579,47 @@ message BuildTrigger {
   string service_account = 33 [(google.api.resource_reference) = {
     type: "iam.googleapis.com/ServiceAccount"
   }];
+
+  // The configuration of a trigger that creates a build whenever an event from
+  // Repo API is received.
+  RepositoryEventConfig repository_event_config = 39;
+}
+
+// The configuration of a trigger that creates a build whenever an event from
+// Repo API is received.
+message RepositoryEventConfig {
+  // All possible SCM repo types from Repo API.
+  enum RepositoryType {
+    // If unspecified, RepositoryType defaults to GITHUB.
+    REPOSITORY_TYPE_UNSPECIFIED = 0;
+
+    // The SCM repo is GITHUB.
+    GITHUB = 1;
+
+    // The SCM repo is GITHUB Enterprise.
+    GITHUB_ENTERPRISE = 2;
+
+    // The SCM repo is GITLAB Enterprise.
+    GITLAB_ENTERPRISE = 3;
+  }
+
+  // The resource name of the Repo API resource.
+  string repository = 1 [(google.api.resource_reference) = {
+    type: "cloudbuild.googleapis.com/Repository"
+  }];
+
+  // Output only. The type of the SCM vendor the repository points to.
+  RepositoryType repository_type = 2
+      [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The types of filter to trigger a build.
+  oneof filter {
+    // Filter to match changes in pull requests.
+    PullRequestFilter pull_request = 3;
+
+    // Filter to match changes in refs like branches, tags.
+    PushFilter push = 4;
+  }
 }
 
 // GitHubEventsConfig describes the configuration of a trigger that creates a