use access json header / extend error message parsing

.gitignore

@@ -3,4 +3,5 @@
 *.out
 _*.md
 .vscode
+.idea
 cmd

scm/driver/stash/stash.go

@@ -9,6 +9,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"fmt"
 	"io"
 	"net/url"
 	"strings"
@@ -64,15 +65,16 @@ func (c *wrapper) do(ctx context.Context, method, path string, in, out interface
 	req := &scm.Request{
 		Method: method,
 		Path:   path,
+		Header: map[string][]string{
+			"Accept": {"application/json"},
+		},
 	}
 	// if we are posting or putting data, we need to
 	// write it to the body of the request.
 	if in != nil {
 		buf := new(bytes.Buffer)
 		json.NewEncoder(buf).Encode(in)
-		req.Header = map[string][]string{
-			"Content-Type": {"application/json"},
-		}
+		req.Header["Content-Type"] = []string{"application/json"}
 		req.Body = buf
 	}
 
@@ -121,7 +123,9 @@ type pagination struct {
 
 // Error represents a Stash error.
 type Error struct {
-	Errors []struct {
+	Message string `json:"message"`
+	Status  int    `json:"status-code"`
+	Errors  []struct {
 		Message         string `json:"message"`
 		ExceptionName   string `json:"exceptionName"`
 		CurrentVersion  int    `json:"currentVersion"`
@@ -131,6 +135,9 @@ type Error struct {
 
 func (e *Error) Error() string {
 	if len(e.Errors) == 0 {
+		if len(e.Message) > 0 {
+			return fmt.Sprintf("bitbucket: status: %d message: %s", e.Status, e.Message)
+		}
 		return "bitbucket: undefined error"
 	}
 	return e.Errors[0].Message