chore: import upstream snapshot with attribution

api/git/backup.go

@@ -0,0 +1,69 @@
+package git
+
+import (
+	"context"
+
+	portainer "github.com/portainer/portainer/api"
+	"github.com/portainer/portainer/api/filesystem"
+	gittypes "github.com/portainer/portainer/api/git/types"
+
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog/log"
+)
+
+var (
+	ErrInvalidGitCredential = errors.New("Invalid git credential")
+)
+
+type CloneOptions struct {
+	ProjectPath   string
+	URL           string
+	ReferenceName string
+	Username      string
+	Password      string
+	// TLSSkipVerify skips SSL verification when cloning the Git repository
+	TLSSkipVerify bool `example:"false"`
+}
+
+func CloneWithBackup(ctx context.Context, gitService portainer.GitService, fileService portainer.FileService, options CloneOptions) (clean func(), err error) {
+	backupProjectPath := options.ProjectPath + "-old"
+	cleanUp := false
+	cleanFn := func() {
+		if !cleanUp {
+			return
+		}
+
+		if err := fileService.RemoveDirectory(backupProjectPath); err != nil {
+			log.Warn().Err(err).Msg("unable to remove git repository directory")
+		}
+	}
+
+	if err := filesystem.MoveDirectory(options.ProjectPath, backupProjectPath, true); err != nil {
+		return cleanFn, errors.WithMessage(err, "Unable to move git repository directory")
+	}
+
+	cleanUp = true
+
+	if err := gitService.CloneRepository(
+		ctx,
+		options.ProjectPath,
+		options.URL,
+		options.ReferenceName,
+		options.Username,
+		options.Password,
+		options.TLSSkipVerify,
+	); err != nil {
+		cleanUp = false
+		if err := filesystem.MoveDirectory(backupProjectPath, options.ProjectPath, false); err != nil {
+			log.Warn().Err(err).Msg("failed restoring backup folder")
+		}
+
+		if errors.Is(err, gittypes.ErrAuthenticationFailure) {
+			return cleanFn, errors.WithMessage(err, ErrInvalidGitCredential.Error())
+		}
+
+		return cleanFn, errors.WithMessage(err, "Unable to clone git repository")
+	}
+
+	return cleanFn, nil
+}