rate limit error code

Author: firu11

pkg/core/core_ical.go

@@ -210,6 +210,8 @@ func (c *Core) fetchICalURL(name string, sourceURL *url.URL) error {
 			code = errcode.Auth
 		case http.StatusForbidden:
 			code = errcode.Forbidden
+		case http.StatusTooManyRequests:
+			code = errcode.RateLimit
 		}
 		return errcode.Wrap(code, fmt.Errorf("fetch iCalendar: %s", response.Status))
 	}

pkg/core/git.go

@@ -3,6 +3,7 @@ package core
 import (
 	"errors"
 	"fmt"
+	"net/http"
 	"net/url"
 	"path"
 	"time"
@@ -83,10 +84,29 @@ func wrapGitRemoteError(err error) error {
 		code = errcode.Auth
 	case errors.Is(err, transport.ErrAuthorizationFailed):
 		code = errcode.Forbidden
+	case gitHTTPStatusCode(err) == http.StatusTooManyRequests:
+		code = errcode.RateLimit
 	}
 	return errcode.Wrap(code, err)
 }
 
+func gitHTTPStatusCode(err error) int {
+	type statusError interface {
+		StatusCode() int
+	}
+
+	var statusErr statusError
+	if errors.As(err, &statusErr) {
+		return statusErr.StatusCode()
+	}
+
+	var unexpectedErr *plumbing.UnexpectedError
+	if errors.As(err, &unexpectedErr) && errors.As(unexpectedErr.Err, &statusErr) {
+		return statusErr.StatusCode()
+	}
+	return 0
+}
+
 // ignoreUpToDate swallows the benign "already up to date" error from push/fetch.
 func ignoreUpToDate(err error) error {
 	if errors.Is(err, gogit.NoErrAlreadyUpToDate) {

pkg/errcode/errcode.go

@@ -10,6 +10,7 @@ const (
 	Network    Code = "NETWORK"
 	Auth       Code = "AUTH"
 	Forbidden  Code = "FORBIDDEN"
+	RateLimit  Code = "RATELIMIT"
 	Validation Code = "VALIDATION"
 	Storage    Code = "STORAGE"
 )