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package embed
import (
"fmt"
"io"
"os"
"github.com/YourFin/binappend"
"github.com/crc-org/crc/v2/pkg/crc/logging"
)
func openEmbeddedFile(executablePath, embedName string) (io.ReadCloser, error) {
extractor, err := binappend.MakeExtractor(executablePath)
if err != nil {
return nil, fmt.Errorf("Could not data embedded in %s: %v", executablePath, err)
}
reader, err := extractor.GetReader(embedName)
if err != nil {
return nil, fmt.Errorf("Could not open embedded '%s' in %s: %v", embedName, executablePath, err)
}
return reader, nil
}
func Extract(embedName, destFile string) error {
executablePath, err := os.Executable()
if err != nil {
return err
}
return ExtractFromExecutable(executablePath, embedName, destFile)
}
func ExtractFromExecutable(executablePath, embedName, destFile string) error {
logging.Debugf("Extracting embedded '%s' from %s to %s", embedName, executablePath, destFile)
reader, err := openEmbeddedFile(executablePath, embedName)
if err != nil {
return err
}
defer reader.Close()
writer, err := os.Create(destFile)
if err != nil {
return fmt.Errorf("Could not create '%s': %v", destFile, err)
}
defer writer.Close()
_, err = io.Copy(writer, reader)
if err != nil {
return fmt.Errorf("Failed to copy embedded '%s' from %s to %s: %v", embedName, executablePath, destFile, err)
}
return writer.Close()
}
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