installation system soft implemented

pkg/packet.lua.d/utils.go

@@ -0,0 +1,81 @@
+package packet
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"log"
+	"math/rand"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$%!@%&*()-=+[]{}:;.,1234567890"
+
+func randStringBytes(n int) string {
+	b := make([]byte, n)
+	for i := range b {
+		b[i] = letterBytes[rand.Intn(len(letterBytes))]
+	}
+	return string(b)
+}
+
+func Dearchive(archive, outdir string) error {
+
+	switch {
+	case strings.HasSuffix(archive, ".tar.gz"):
+
+		f, err := os.Open(archive)
+		if err != nil {
+			return err
+		}
+
+		gzReader, err := gzip.NewReader(f)
+		if err != nil {
+			return err
+		}
+
+		tarReader := tar.NewReader(gzReader)
+
+		for {
+			header, err := tarReader.Next()
+			if err == io.EOF {
+				break
+			}
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			destination := filepath.Join(outdir, header.Name)
+
+			fmt.Println(destination)
+
+			switch header.Typeflag {
+			case tar.TypeDir:
+				if err := os.Mkdir(destination, header.FileInfo().Mode()); err != nil {
+					return err
+				}
+			case tar.TypeReg:
+
+				if err := os.MkdirAll(filepath.Dir(destination), 0777); err != nil {
+					return err
+				}
+				outFile, err := os.Create(destination)
+				if err != nil {
+					return err
+				}
+				if _, err := io.Copy(outFile, tarReader); err != nil {
+					return err
+				}
+				outFile.Close()
+
+			default:
+				return fmt.Errorf("unknow filetype")
+			}
+
+		}
+	}
+	return nil
+}