[full-ci] experimental search backport (#5221)

* experimental search backport
fix basic extractor resource name
move escapeQuery regex into global variable
minor pr review changes
rename DebounceDuration env variable
add document title and content when rebuilding bleve resource

Co-authored-by: David Christofas <dchristofas@owncloud.com>

services/search/pkg/server/grpc/option.go

@@ -6,7 +6,7 @@ import (
 	"github.com/owncloud/ocis/v2/ocis-pkg/log"
 	"github.com/owncloud/ocis/v2/services/search/pkg/config"
 	"github.com/owncloud/ocis/v2/services/search/pkg/metrics"
-	svc "github.com/owncloud/ocis/v2/services/search/pkg/service/v0"
+	svc "github.com/owncloud/ocis/v2/services/search/pkg/service/grpc/v0"
 	"github.com/urfave/cli/v2"
 )
 

services/search/pkg/server/grpc/server.go

@@ -4,11 +4,11 @@ import (
 	"github.com/owncloud/ocis/v2/ocis-pkg/service/grpc"
 	"github.com/owncloud/ocis/v2/ocis-pkg/version"
 	searchsvc "github.com/owncloud/ocis/v2/protogen/gen/ocis/services/search/v0"
-	svc "github.com/owncloud/ocis/v2/services/search/pkg/service/v0"
+	svc "github.com/owncloud/ocis/v2/services/search/pkg/service/grpc/v0"
 )
 
 // Server initializes a new go-micro service ready to run
-func Server(opts ...Option) grpc.Service {
+func Server(opts ...Option) (grpc.Service, func(), error) {
 	options := newOptions(opts...)
 
 	service, err := grpc.NewService(
@@ -27,10 +27,10 @@ func Server(opts ...Option) grpc.Service {
 	)
 	if err != nil {
 		options.Logger.Fatal().Err(err).Msg("Error creating search service")
-		return grpc.Service{}
+		return grpc.Service{}, func() {}, err
 	}
 
-	handle, err := svc.NewHandler(
+	handle, teardown, err := svc.NewHandler(
 		svc.Config(options.Config),
 		svc.Logger(options.Logger),
 	)
@@ -38,11 +38,18 @@ func Server(opts ...Option) grpc.Service {
 		options.Logger.Error().
 			Err(err).
 			Msg("Error initializing search service")
-		return grpc.Service{}
+		return grpc.Service{}, teardown, err
 	}
-	_ = searchsvc.RegisterSearchProviderHandler(
+
+	if err := searchsvc.RegisterSearchProviderHandler(
 		service.Server(),
 		handle,
-	)
-	return service
+	); err != nil {
+		options.Logger.Error().
+			Err(err).
+			Msg("Error registering search provider handler")
+		return grpc.Service{}, teardown, err
+	}
+
+	return service, teardown, nil
 }