refactor: move alr.sh parsing to pkg

pkg/alrsh/gob.go

@@ -0,0 +1,61 @@
+// ALR - Any Linux Repository
+// Copyright (C) 2025 The ALR Authors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package alrsh
+
+import (
+	"bytes"
+	"encoding/gob"
+
+	"mvdan.cc/sh/v3/syntax"
+	"mvdan.cc/sh/v3/syntax/typedjson"
+)
+
+func (s *ALRSh) GobEncode() ([]byte, error) {
+	var buf bytes.Buffer
+	enc := gob.NewEncoder(&buf)
+	if err := enc.Encode(s.path); err != nil {
+		return nil, err
+	}
+	var fileBuf bytes.Buffer
+	if err := typedjson.Encode(&fileBuf, s.file); err != nil {
+		return nil, err
+	}
+	fileData := fileBuf.Bytes()
+	if err := enc.Encode(fileData); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func (s *ALRSh) GobDecode(data []byte) error {
+	buf := bytes.NewBuffer(data)
+	dec := gob.NewDecoder(buf)
+	if err := dec.Decode(&s.path); err != nil {
+		return err
+	}
+	var fileData []byte
+	if err := dec.Decode(&fileData); err != nil {
+		return err
+	}
+	fileReader := bytes.NewReader(fileData)
+	file, err := typedjson.Decode(fileReader)
+	if err != nil {
+		return err
+	}
+	s.file = file.(*syntax.File)
+	return nil
+}