63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package izapple2
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import (
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"strings"
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"github.com/ivanizag/izapple2/romdumps"
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)
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const (
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internalPrefix = "<internal>/"
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httpPrefix = "http://"
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httpsPrefix = "https://"
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)
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func isInternalResource(filename string) bool {
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return strings.HasPrefix(filename, internalPrefix)
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}
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func isHTTPResource(filename string) bool {
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return strings.HasPrefix(filename, httpPrefix) ||
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strings.HasPrefix(filename, httpsPrefix)
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}
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func loadResource(filename string) ([]uint8, error) {
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var file io.Reader
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if isInternalResource(filename) {
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// load from embedded resource
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resource := strings.TrimPrefix(filename, internalPrefix)
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resourceFile, err := romdumps.Assets.Open(resource)
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if err != nil {
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return nil, err
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}
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defer resourceFile.Close()
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file = resourceFile
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} else if isHTTPResource(filename) {
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response, err := http.Get(filename)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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file = response.Body
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} else {
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diskFile, err := os.Open(filename)
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if err != nil {
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return nil, err
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}
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defer diskFile.Close()
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file = diskFile
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}
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data, err := ioutil.ReadAll(file)
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if err != nil {
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return nil, err
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}
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return data, nil
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}
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