feat(git): save git config when creating stack (#5048)

* feat(git): save git config when creating stack

* chore(fs): test fileExists

* fix(git): fix tests to use CloneRepository

* refactor(git): move options to new object

api/http/handler/stacks/stack_create.go

@@ -2,6 +2,7 @@ package stacks
 
 import (
 	"errors"
+	"fmt"
 	"log"
 	"net/http"
 
@@ -12,6 +13,7 @@ import (
 	"github.com/portainer/libhttp/response"
 	portainer "github.com/portainer/portainer/api"
 	bolterrors "github.com/portainer/portainer/api/bolt/errors"
+	gittypes "github.com/portainer/portainer/api/git/types"
 	httperrors "github.com/portainer/portainer/api/http/errors"
 	"github.com/portainer/portainer/api/http/security"
 	"github.com/portainer/portainer/api/internal/authorization"
@@ -226,3 +228,18 @@ func (handler *Handler) decorateStackResponse(w http.ResponseWriter, stack *port
 	stack.ResourceControl = resourceControl
 	return response.JSON(w, stack)
 }
+
+func (handler *Handler) cloneAndSaveConfig(stack *portainer.Stack, projectPath, repositoryURL, refName, configFilePath string, auth bool, username, password string) error {
+
+	err := handler.GitService.CloneRepository(projectPath, repositoryURL, refName, username, password)
+	if err != nil {
+		return fmt.Errorf("unable to clone git repository: %w", err)
+	}
+
+	stack.GitConfig = &gittypes.RepoConfig{
+		URL:            repositoryURL,
+		ReferenceName:  refName,
+		ConfigFilePath: configFilePath,
+	}
+	return nil
+}