work in progress on filesystem and mpq extract

.gitignore

@@ -0,0 +1 @@
+*.mpq

filesystem/filesystem.go

@@ -0,0 +1,50 @@
+package filesystem
+
+import (
+	"bytes"
+	"io"
+
+	"github.com/icza/mpq"
+)
+
+type FileSystem interface {
+	Mount(root, path string) error
+	List() ([]string, error)
+	Open(path string) (io.ReadSeeker, error)
+}
+
+func New() FileSystem {
+	return new(filesystem)
+}
+
+type filesystem struct {
+	db *mpq.MPQ
+}
+
+func (fs *filesystem) Mount(root, path string) error {
+	db, err := mpq.NewFromFile(path)
+	if err != nil {
+		return err
+	}
+
+	fs.db = db
+	return nil
+}
+
+func (fs *filesystem) List() ([]string, error) {
+	data, err := fs.db.FileByName("(listfile)")
+	if err != nil {
+		return nil, err
+	}
+
+	return []string{string(data)}, nil
+}
+
+func (fs *filesystem) Open(path string) (io.ReadSeeker, error) {
+	data, err := fs.db.FileByName(path)
+	if err != nil {
+		return nil, err
+	}
+
+	return bytes.NewReader(data), nil
+}

tools/mpq/mpq.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+
+	"github.com/FooSoft/lazarus/filesystem"
+)
+
+func main() {
+	// var (
+	// 	wildcard = flag.String("wildcard", "*.*", "wildcard filter")
+	// )
+	flag.Parse()
+
+	if flag.NArg() == 0 {
+		flag.PrintDefaults()
+		os.Exit(2)
+	}
+
+	fs := filesystem.New()
+	if err := fs.Mount("", flag.Arg(0)); err != nil {
+		log.Fatal(err)
+	}
+
+	paths, err := fs.List()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	log.Print(paths)
+}