1 files changed, 54 insertions, 0 deletions
diff --git a/listmaps.go b/listmaps.go
new file mode 100644
index 0000000..ea43890
--- /dev/null
+++ b/listmaps.go
@@ -0,0 +1,54 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"runtime"
+)
+
+func allMaps() map[string]string {
+	savesDir := ""
+	switch runtime.GOOS {
+	case "linux":
+		savesDir = fmt.Sprintf("%s/.minecraft/saves", os.Getenv("HOME"))
+	case "darwin":
+		savesDir = fmt.Sprintf("%s/Library/Application Support/minecraft/saves", os.Getenv("HOME"))
+	case "windows":
+		savesDir = fmt.Sprintf(`%s\.minecraft`, os.Getenv("appdata"))
+	default:
+		return nil
+	}
+
+	f, err := os.Open(savesDir)
+	if err != nil {
+		return nil
+	}
+	defer f.Close()
+	fi, err := f.Stat()
+	if (err != nil) || (!fi.IsDir()) {
+		return nil
+	}
+
+	infos, err := f.Readdir(-1)
+	if err != nil {
+		return nil
+	}
+
+	maps := make(map[string]string)
+	for _, info := range infos {
+		if !info.IsDir() {
+			continue
+		}
+		p := path.Join(savesDir, info.Name())
+
+		fi, err := os.Stat(path.Join(p, "level.dat"))
+		if (err != nil) || (!fi.Mode().IsRegular()) {
+			continue
+		}
+
+		maps[info.Name()] = path.Join(p, "region")
+	}
+
+	return maps
+}