izapple2/resources.go

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package apple2
import (
"io"
"io/ioutil"
"os"
"strings"
"github.com/ivanizag/apple2/romdumps"
)
const (
internalPrefix = "<internal>/"
)
func loadResource(filename string) []uint8 {
var file io.Reader
if strings.HasPrefix(filename, internalPrefix) {
// load from embedded resource
resource := strings.TrimPrefix(filename, internalPrefix)
resourceFile, err := romdumps.Assets.Open(resource)
if err != nil {
panic(err)
}
defer resourceFile.Close()
file = resourceFile
} else {
diskFile, err := os.Open(filename)
if err != nil {
panic(err)
}
defer diskFile.Close()
file = diskFile
}
data, err := ioutil.ReadAll(file)
if err != nil {
panic(err)
}
return data
}