Function fileExists

envbuilder.go:1598–1601

(fs billy.Filesystem, path string)

}

func fileExists(fs billy.Filesystem, path string) bool {
	fi, err := fs.Stat(path)
	return err == nil && !fi.IsDir()
}

func readFile(fs billy.Filesystem, name string) ([]byte, error) {
	f, err := fs.Open(name)