func generateErrorMessages(serviceMap RawServiceMap, schema map[string]interface{}, result *gojsonschema.Result) error {
var validationErrors []string
// gojsonschema can create extraneous "additional_property_not_allowed" errors in some cases
// If this is set, and the error is at root level, skip over that error
skipRootAdditionalPropertyError := false
if !result.Valid() {
for i := 0; i < len(result.Errors()); i++ {
err := result.Errors()[i]
if skipRootAdditionalPropertyError && err.Type() == "additional_property_not_allowed" && err.Context().String() == "(root)" {
skipRootAdditionalPropertyError = false
continue
}
if err.Context().String() == "(root)" {
switch err.Type() {
case "additional_property_not_allowed":
validationErrors = append(validationErrors, fmt.Sprintf("Invalid service name '%s' - only [a-zA-Z0-9\\._\\-] characters are allowed", err.Field()))
default:
validationErrors = append(validationErrors, err.Description())
}
} else {
skipRootAdditionalPropertyError = true
serviceName := serviceNameFromErrorField(err.Field())
key := keyNameFromErrorField(err.Field())
switch err.Type() {
case "additional_property_not_allowed":
validationErrors = append(validationErrors, unsupportedConfigMessage(key, result.Errors()[i+1]))
case "number_one_of":
validationErrors = append(validationErrors, fmt.Sprintf("Service '%s' configuration key '%s' %s", serviceName, key, oneOfMessage(serviceMap, schema, err, result.Errors()[i+1])))
// Next error handled in oneOfMessage, skip over it
i++
case "invalid_type":
validationErrors = append(validationErrors, invalidTypeMessage(serviceName, key, err))
case "required":
validationErrors = append(validationErrors, fmt.Sprintf("Service '%s' option '%s' is invalid, %s", serviceName, key, err.Description()))
case "missing_dependency":
dependency := err.Details()["dependency"].(string)
validationErrors = append(validationErrors, fmt.Sprintf("Invalid configuration for '%s' service: dependency '%s' is not satisfied", serviceName, dependency))
case "unique":
contextWithDuplicates := getValue(serviceMap, err.Context().String())
validationErrors = append(validationErrors, fmt.Sprintf("Service '%s' configuration key '%s' value %s has non-unique elements", serviceName, key, contextWithDuplicates))
default:
validationErrors = append(validationErrors, fmt.Sprintf("Service '%s' configuration key %s value %s", serviceName, key, err.Description()))
}
}
}
return fmt.Errorf(strings.Join(validationErrors, "\n"))
}
return nil
}
func toError(result *gojsonschema.Result) error {
err := getMostSpecificError(result.Errors())
description := getDescription(err)
return fmt.Errorf("%s %s", err.Field(), description)
}