Function prepareDestForCopy

pkg/wshrpc/wshremote/wshremote_file.go:40–71

prepareDestForCopy resolves the final destination path and handles overwrite logic. destPath is the raw destination path (may be a directory or file path). srcBaseName is the basename of the source file (used when dest is a directory or ends with slash). destHasSlash indicates if the original URI en

(destPath string, srcBaseName string, destHasSlash bool, overwrite bool)

// destHasSlash indicates if the original URI ended with a slash (forcing directory interpretation).
// Returns the resolved path ready for writing.
func prepareDestForCopy(destPath string, srcBaseName string, destHasSlash bool, overwrite bool) (string, error) {
	destInfo, err := os.Stat(destPath)
	if err != nil && !errors.Is(err, fs.ErrNotExist) {
		return "", fmt.Errorf("cannot stat destination %q: %w", destPath, err)
	}

	destExists := destInfo != nil
	destIsDir := destExists && destInfo.IsDir()

	var finalPath string
	if destHasSlash || destIsDir {
		finalPath = filepath.Join(destPath, srcBaseName)
	} else {
		finalPath = destPath
	}

	finalInfo, err := os.Stat(finalPath)
	if err != nil && !errors.Is(err, fs.ErrNotExist) {
		return "", fmt.Errorf("cannot stat file %q: %w", finalPath, err)
	}

	if finalInfo != nil {
		if !overwrite {
			return "", fmt.Errorf(wshfs.OverwriteRequiredError, finalPath)
		}
		if err := os.Remove(finalPath); err != nil {
			return "", fmt.Errorf("cannot remove file %q: %w", finalPath, err)
		}
	}

	return finalPath, nil
}

// remoteCopyFileInternal copies FROM local (this host) TO local (this host)
// Only supports copying files, not directories