Removed unused code

src/utils/utils.go

@@ -5,10 +5,8 @@ import (
     "io"
     "net"
     "time"
-    "strings"
     "strconv"
     "math/rand"
-    "archive/tar"
     "path/filepath"
     "nexus-server/logger"
     "golang.org/x/crypto/bcrypt"
@@ -114,122 +112,3 @@ func IsPortAvailable(port int) bool {
     ln.Close()
     return true
 }
-
-// Creates the destTarball .tar archive of srcDir and all its files and subdirectories.
-// This implementation fails if a symlink points to an absolute path that doesn't exist on the host.
-// Source code slightly modified from: https://golangdocs.com/tar-gzip-in-golang
-func TarDir(srcDir, destTarball string) error {
-    tarFile, err := os.Create(destTarball)
-    if err != nil {
-        return err
-    }
-    defer tarFile.Close()
-
-    tarball := tar.NewWriter(tarFile)
-    defer tarball.Close()
-
-    info, err := os.Stat(srcDir)
-    if err != nil {
-        return err
-    }
-
-    var baseDir string
-    if info.IsDir() {
-        baseDir = filepath.Base(srcDir)
-    }
-
-    return filepath.Walk(srcDir,
-        func(path string, info os.FileInfo, err error) error {
-            if err != nil {
-                return err
-            }
-
-            if (info.Mode() & os.ModeSymlink) != 0 {
-                log.Warn("TarDir: skipping symlink: ", path)
-                return nil
-            }
-
-            header, err := tar.FileInfoHeader(info, info.Name())
-            if err != nil {
-                return err
-            }
-
-            if baseDir != "" {
-                header.Name = filepath.Join(baseDir, strings.TrimPrefix(path, srcDir))
-            }
-
-            if err := tarball.WriteHeader(header); err != nil {
-                return err
-            }
-
-            if info.IsDir() {
-                return nil
-            }
-
-            file, err := os.Open(path)
-            if err != nil {
-                return err
-            }
-            defer file.Close()
-            _, err = io.Copy(tarball, file)
-            return err
-        })
-}
-
-// Unarchive srcTarball into destDir.
-func Untar(srcTarball, destDir string) error {
-    reader, err := os.Open(srcTarball)
-    if err != nil {
-        return err
-    }
-    defer reader.Close()
-
-    // First pass: reads and creates directories first.
-    tarDirReader := tar.NewReader(reader)
-    for {
-        header, err := tarDirReader.Next()
-        if err == io.EOF {
-            break
-        } else if err != nil {
-            return err
-        }
-        path := filepath.Join(destDir, header.Name)
-        info := header.FileInfo()
-        if info.IsDir() {
-            if err = os.MkdirAll(path, info.Mode()); err != nil {
-                return err
-            }
-            continue
-        }
-    }
-
-    // Seeks to the beginning of the file.
-    whence := 0
-    reader.Seek(0, whence)
-
-    // Second pass: reads and creates files.
-    tarFileReader := tar.NewReader(reader)
-    for {
-        header, err := tarFileReader.Next()
-        if err == io.EOF {
-            break
-        } else if err != nil {
-            return err
-        }
-        path := filepath.Join(destDir, header.Name)
-        info := header.FileInfo()
-        if !info.IsDir() {
-            file, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, info.Mode())
-            if err != nil {
-                return err
-            }
-            defer file.Close()
-            _, err = io.Copy(file, tarFileReader)
-            if err != nil {
-                return err
-            }
-        }
-    }
-
-    return nil
-}