MM-25723 Add an experimental setting for data prefetching (#14731)

* MM-25723 Add an experimental setting for data prefetching

* Fix formatting

* Fix bool error

* Fix lint error

* Change default to true

app/diagnostics.go

@@ -356,6 +356,7 @@ func (a *App) trackConfig() {
 		"enable_svgs":                                             *cfg.ServiceSettings.EnableSVGs,
 		"enable_latex":                                            *cfg.ServiceSettings.EnableLatex,
 		"enable_opentracing":                                      *cfg.ServiceSettings.EnableOpenTracing,
+		"experimental_data_prefetch":                              *cfg.ServiceSettings.ExperimentalDataPrefetch,
 	})
 
 	a.SendDiagnostic(TRACK_CONFIG_TEAM, map[string]interface{}{

config/client.go

@@ -62,6 +62,8 @@ func GenerateClientConfig(c *model.Config, diagnosticID string, license *model.L
 	props["ExperimentalEnableAutomaticReplies"] = strconv.FormatBool(*c.TeamSettings.ExperimentalEnableAutomaticReplies)
 	props["ExperimentalTimezone"] = strconv.FormatBool(*c.DisplaySettings.ExperimentalTimezone)
 
+	props["ExperimentalDataPrefetch"] = strconv.FormatBool(*c.ServiceSettings.ExperimentalDataPrefetch)
+
 	props["SendEmailNotifications"] = strconv.FormatBool(*c.EmailSettings.SendEmailNotifications)
 	props["SendPushNotifications"] = strconv.FormatBool(*c.EmailSettings.SendPushNotifications)
 	props["RequireEmailVerification"] = strconv.FormatBool(*c.EmailSettings.RequireEmailVerification)

model/config.go

@@ -322,6 +322,7 @@ type ServiceSettings struct {
 	ExperimentalGroupUnreadChannels                   *string
 	ExperimentalChannelOrganization                   *bool
 	ExperimentalChannelSidebarOrganization            *string
+	ExperimentalDataPrefetch                          *bool
 	DEPRECATED_DO_NOT_USE_ImageProxyType              *string `json:"ImageProxyType" mapstructure:"ImageProxyType"`       // This field is deprecated and must not be used.
 	DEPRECATED_DO_NOT_USE_ImageProxyURL               *string `json:"ImageProxyURL" mapstructure:"ImageProxyURL"`         // This field is deprecated and must not be used.
 	DEPRECATED_DO_NOT_USE_ImageProxyOptions           *string `json:"ImageProxyOptions" mapstructure:"ImageProxyOptions"` // This field is deprecated and must not be used.
@@ -678,6 +679,10 @@ func (s *ServiceSettings) SetDefaults(isUpdate bool) {
 		s.ExperimentalChannelSidebarOrganization = NewString("disabled")
 	}
 
+	if s.ExperimentalDataPrefetch == nil {
+		s.ExperimentalDataPrefetch = NewBool(true)
+	}
+
 	if s.DEPRECATED_DO_NOT_USE_ImageProxyType == nil {
 		s.DEPRECATED_DO_NOT_USE_ImageProxyType = NewString("")
 	}