Log the file type of the file before skipping it

Signed-off-by: Evans Mungai <mbuevans@gmail.com>

internal/third_party/dep/fs/fs.go

@@ -178,7 +178,8 @@ func CopyFile(src, dst string) (err error) {
 		if fi, err := os.Lstat(src); err != nil {
 			return fmt.Errorf("stat failed: %w", err)
 		} else if !fi.Mode().IsRegular() {
-			slog.Debug("skipping non-regular file", "path", src, "mode", fi.Mode())
+			fileType := fileTypeString(fi.Mode())
+			slog.Debug("skipping non-regular file", "path", src, "type", fileType, "mode", fi.Mode())
 			return nil
 		}
 	}
@@ -254,6 +255,31 @@ func IsSymlink(path string) (bool, error) {
 	return l.Mode()&os.ModeSymlink == os.ModeSymlink, nil
 }
 
+// fileTypeString returns a human-readable description of the file type based on the mode.
+func fileTypeString(mode os.FileMode) string {
+	switch {
+	case mode&os.ModeDir != 0:
+		return "directory"
+	case mode&os.ModeSymlink != 0:
+		return "symlink"
+	case mode&os.ModeNamedPipe != 0:
+		return "named pipe (FIFO)"
+	case mode&os.ModeSocket != 0:
+		return "socket"
+	case mode&os.ModeDevice != 0:
+		if mode&os.ModeCharDevice != 0 {
+			return "character device"
+		}
+		return "block device"
+	case mode&os.ModeIrregular != 0:
+		return "irregular file"
+	case mode.IsRegular():
+		return "regular file"
+	default:
+		return "unknown file type"
+	}
+}
+
 // fixLongPath returns the extended-length (\\?\-prefixed) form of
 // path when needed, in order to avoid the default 260 character file
 // path limit imposed by Windows. If path is not easily converted to