435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
package linodego
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"strings"
|
|
|
|
"gopkg.in/resty.v1"
|
|
)
|
|
|
|
const (
|
|
// ErrorFromString is the Code identifying Errors created by string types
|
|
ErrorFromString = 1
|
|
// ErrorFromError is the Code identifying Errors created by error types
|
|
ErrorFromError = 2
|
|
// ErrorFromStringer is the Code identifying Errors created by fmt.Stringer types
|
|
ErrorFromStringer = 3
|
|
)
|
|
|
|
// Error wraps the LinodeGo error with the relevant http.Response
|
|
type Error struct {
|
|
Response *http.Response
|
|
Code int
|
|
Message string
|
|
}
|
|
|
|
// APIErrorReason is an individual invalid request message returned by the Linode API
|
|
type APIErrorReason struct {
|
|
Reason string `json:"reason"`
|
|
Field string `json:"field"`
|
|
}
|
|
|
|
func (r APIErrorReason) Error() string {
|
|
if len(r.Field) == 0 {
|
|
return r.Reason
|
|
}
|
|
return fmt.Sprintf("[%s] %s", r.Field, r.Reason)
|
|
}
|
|
|
|
// APIError is the error-set returned by the Linode API when presented with an invalid request
|
|
type APIError struct {
|
|
Errors []APIErrorReason `json:"errors"`
|
|
}
|
|
|
|
func coupleAPIErrors(r *resty.Response, err error) (*resty.Response, error) {
|
|
if err != nil {
|
|
return nil, NewError(err)
|
|
}
|
|
|
|
if r.Error() != nil {
|
|
apiError, ok := r.Error().(*APIError)
|
|
if !ok || (ok && len(apiError.Errors) == 0) {
|
|
return r, nil
|
|
}
|
|
return nil, NewError(r)
|
|
}
|
|
|
|
return r, nil
|
|
}
|
|
|
|
func (e APIError) Error() string {
|
|
var x []string
|
|
for _, msg := range e.Errors {
|
|
x = append(x, msg.Error())
|
|
}
|
|
return strings.Join(x, "; ")
|
|
}
|
|
|
|
func (g Error) Error() string {
|
|
return fmt.Sprintf("[%03d] %s", g.Code, g.Message)
|
|
}
|
|
|
|
// NewError creates a linodego.Error with a Code identifying the source err type,
|
|
// - ErrorFromString (1) from a string
|
|
// - ErrorFromError (2) for an error
|
|
// - ErrorFromStringer (3) for a Stringer
|
|
// - HTTP Status Codes (100-600) for a resty.Response object
|
|
func NewError(err interface{}) *Error {
|
|
if err == nil {
|
|
return nil
|
|
}
|
|
|
|
switch e := err.(type) {
|
|
case *Error:
|
|
return e
|
|
case *resty.Response:
|
|
apiError, ok := e.Error().(*APIError)
|
|
|
|
if !ok {
|
|
log.Fatalln("Unexpected Resty Error Response")
|
|
}
|
|
|
|
return &Error{
|
|
Code: e.RawResponse.StatusCode,
|
|
Message: apiError.Error(),
|
|
Response: e.RawResponse,
|
|
}
|
|
case error:
|
|
return &Error{Code: ErrorFromError, Message: e.Error()}
|
|
case string:
|
|
return &Error{Code: ErrorFromString, Message: e}
|
|
case fmt.Stringer:
|
|
return &Error{Code: ErrorFromStringer, Message: e.String()}
|
|
default:
|
|
log.Fatalln("Unsupported type to linodego.NewError")
|
|
panic(err)
|
|
}
|
|
}
|