package filesystem import ( "io" "os" "github.com/v2fly/v2ray-core/v4/common/buf" "github.com/v2fly/v2ray-core/v4/common/platform" ) type FileReaderFunc func(path string) (io.ReadCloser, error) var NewFileReader FileReaderFunc = func(path string) (io.ReadCloser, error) { return os.Open(path) } func ReadFile(path string) ([]byte, error) { reader, err := NewFileReader(path) if err != nil { return nil, err } defer reader.Close() return buf.ReadAllToBytes(reader) } func ReadAsset(file string) ([]byte, error) { return ReadFile(platform.GetAssetLocation(file)) } func CopyFile(dst string, src string) error { bytes, err := ReadFile(src) if err != nil { return err } f, err := os.OpenFile(dst, os.O_CREATE|os.O_WRONLY, 0644) if err != nil { return err } defer f.Close() _, err = f.Write(bytes) return err }