// Set is called by 'flag' package when parsing command line options.
func (tags *Tags) Set(value string) error {
err := common.ValidateInstanceTag(value)
if err != nil {
return err
}
*tags = append(*tags, value)
return nil
}
func tagsEndpoint(pin common.Pin, tags []string) (string, error) {
if err := common.ValidatePin(pin); err != nil {
return "", err
}
for _, tag := range tags {
if err := common.ValidateInstanceTag(tag); err != nil {
return "", err
}
}
params := url.Values{}
params.Add("package_name", pin.PackageName)
params.Add("instance_id", pin.InstanceID)
for _, tag := range tags {
params.Add("tag", tag)
}
return "repo/v1/tags?" + params.Encode(), nil
}
func (r *remoteImpl) attachTags(pin common.Pin, tags []string) error {
// Tags will be passed in the request body, not via URL.
endpoint, err := tagsEndpoint(pin, nil)
if err != nil {
return err
}
for _, tag := range tags {
err = common.ValidateInstanceTag(tag)
if err != nil {
return err
}
}
var request struct {
Tags []string `json:"tags"`
}
request.Tags = tags
var reply struct {
Status string `json:"status"`
ErrorMessage string `json:"error_message"`
}
err = r.makeRequest(endpoint, "POST", &request, &reply)
if err != nil {
return err
}
switch reply.Status {
case "SUCCESS":
return nil
case "PROCESSING_NOT_FINISHED_YET":
return &pendingProcessingError{reply.ErrorMessage}
case "ERROR", "PROCESSING_FAILED":
return errors.New(reply.ErrorMessage)
}
return fmt.Errorf("Unexpected status when attaching tags: %s", reply.Status)
}