Function Copy

pkg/util/fsutil/filesystem.go:67–108

Copy copies a file to a destination path

(sourcePath string, targetPath string, overwrite bool)

// Copy copies a file to a destination path
func Copy(sourcePath string, targetPath string, overwrite bool) error {
	if overwrite {
		return recursiveCopy.Copy(sourcePath, targetPath)
	}

	var err error

	// Convert to absolute path
	sourcePath, err = filepath.Abs(sourcePath)
	if err != nil {
		return err
	}

	// Convert to absolute path
	targetPath, err = filepath.Abs(targetPath)
	if err != nil {
		return err
	}

	return filepath.Walk(sourcePath, func(nextSourcePath string, fileInfo os.FileInfo, err error) error {
		nextTargetPath := filepath.Join(targetPath, strings.TrimPrefix(nextSourcePath, sourcePath))
		if fileInfo == nil {
			return nil
		}

		if !fileInfo.Mode().IsRegular() {
			return nil
		}

		if fileInfo.IsDir() {
			_ = os.MkdirAll(nextTargetPath, os.ModePerm)
			return Copy(nextSourcePath, nextTargetPath, overwrite)
		}

		_, statErr := os.Stat(nextTargetPath)
		if statErr != nil {
			return recursiveCopy.Copy(nextSourcePath, nextTargetPath)
		}

		return nil
	})
}