func walk()

in main.go [165:191]

• 22 lines of code
• 6 McCabe index (conditional complexity)

func walk(p, ext, license string, headerBytes []byte, exclude []string, dry bool, out io.Writer) error {
	var err error
	filepath.WalkDir(p, func(path string, info fs.DirEntry, walkErr error) error {
		if walkErr != nil {
			err = &Error{err: walkErr, code: exitFailedToWalkPath}
			return walkErr
		}

		var currentPath = cleanPathPrefixes(
			strings.TrimLeft(path, p),
			[]string{string(os.PathSeparator)},
		)

		var excludedDir = info.IsDir() && stringInSlice(info.Name(), defaultExludedDirs)
		if needsExclusion(currentPath, exclude) || excludedDir {
			return filepath.SkipDir
		}

		if e := addOrCheckLicense(path, ext, license, headerBytes, info, dry, out); e != nil {
			err = e
		}

		return nil
	})

	return err
}