add ctl command to resume postprocessing

Signed-off-by: jkoberg <jkoberg@owncloud.com>

services/postprocessing/pkg/command/postprocessing.go

@@ -0,0 +1,58 @@
+package command
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/cs3org/reva/v2/pkg/events"
+	"github.com/cs3org/reva/v2/pkg/utils"
+	"github.com/owncloud/ocis/v2/ocis-pkg/config/configlog"
+	"github.com/owncloud/ocis/v2/services/postprocessing/pkg/config"
+	"github.com/owncloud/ocis/v2/services/postprocessing/pkg/config/parser"
+	"github.com/urfave/cli/v2"
+)
+
+// RestartPostprocessing cli command to restart postprocessing
+func RestartPostprocessing(cfg *config.Config) *cli.Command {
+	return &cli.Command{
+		Name:  "restart",
+		Usage: "restart postprocessing for an uploadID",
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:     "upload-id",
+				Aliases:  []string{"u"},
+				Required: true,
+				Usage:    "the uploadid to restart",
+			},
+		},
+		Before: func(c *cli.Context) error {
+			return configlog.ReturnFatal(parser.ParseConfig(cfg))
+		},
+		Action: func(c *cli.Context) error {
+			stream, err := getEventBus(cfg.Postprocessing.Events)
+			if err != nil {
+				return err
+			}
+
+			ev := events.ResumePostprocessing{
+				UploadID:  c.String("upload-id"),
+				Timestamp: utils.TSNow(),
+			}
+
+			if err := events.Publish(stream, ev); err != nil {
+				fmt.Println(err)
+				return err
+			}
+
+			// go-micro nats implementation uses async publishing,
+			// therefore we need to manually wait.
+			//
+			// FIXME: upstream pr
+			//
+			// https://github.com/go-micro/plugins/blob/3e77393890683be4bacfb613bc5751867d584692/v4/events/natsjs/nats.go#L115
+			time.Sleep(5 * time.Second)
+
+			return nil
+		},
+	}
+}