feat: added modules

core/utils/init.go

@@ -0,0 +1,30 @@
+package utils
+
+import (
+	"github.com/crawlab-team/crawlab/core/interfaces"
+	"sync"
+)
+
+var moduleInitializedMap = sync.Map{}
+
+func InitModule(id interfaces.ModuleId, fn func() error) (err error) {
+	res, ok := moduleInitializedMap.Load(id)
+	if ok {
+		initialized, _ := res.(bool)
+		if initialized {
+			return nil
+		}
+	}
+
+	if err := fn(); err != nil {
+		return err
+	}
+
+	moduleInitializedMap.Store(id, true)
+
+	return nil
+}
+
+func ForceInitModule(fn func() error) (err error) {
+	return fn()
+}