func retrieveIconPathFromTutorials()

in dev/import-beats/icons.go [73:111]
30 lines of code
6 McCabe index (conditional complexity)

func retrieveIconPathFromTutorials(kibanaDir string) (map[string]string, error) {
	refs := map[string]string{}

	tutorialsPath := filepath.Join(kibanaDir, tutorialsPath)
	tutorialFilePaths, err := filepath.Glob(filepath.Join(tutorialsPath, "*_*", "index.ts"))
	if err != nil {
		return nil, errors.Wrapf(err, "globbing tutorial files failed (path: %s)", tutorialsPath)
	}

	for _, tutorialFilePath := range tutorialFilePaths {
		log.Printf("Scan tutorial file: %s", tutorialFilePath)

		tutorialFile, err := ioutil.ReadFile(tutorialFilePath)
		if err != nil {
			return nil, errors.Wrapf(err, "reading tutorial file failed (path: %s)", tutorialFile)
		}

		m := iconRe.Find(tutorialFile)
		if m == nil {
			log.Printf("\t%s: icon not found", tutorialFilePath)
			continue
		}

		s := strings.Split(string(m), `'`)
		val := s[1]

		// Extracting module name from tutorials path
		// e.g. ./src/plugins/home/server/tutorials//php_fpm_metrics/index.ts -> php_fpm
		moduleName := filepath.Base(filepath.Dir(tutorialFilePath))
		moduleName = moduleName[:strings.LastIndex(moduleName, "_")]

		if filepath.IsAbs(val) {
			iconFileName := filepath.Base(val)
			val = path.Join(kibanaDir, kibanaLogosPath, iconFileName)
			refs[moduleName] = val
		}
	}
	return refs, nil
}