Guard env state behind cached objects

app/src/main/java/com/topjohnwu/magisk/utils/CachedValue.kt

@@ -0,0 +1,24 @@
+package com.topjohnwu.magisk.utils
+
+class CachedValue<T>(private val factory: () -> T) : Lazy<T> {
+
+    private var _val : T? = null
+
+    override val value: T
+        get() {
+            val local = _val
+            return local ?: synchronized(this) {
+                val newInstance = factory()
+                _val = newInstance
+                newInstance
+            }
+        }
+
+    override fun isInitialized() = _val != null
+
+    fun invalidate() {
+        synchronized(this) {
+            _val = null
+        }
+    }
+}

app/src/main/java/com/topjohnwu/magisk/utils/RootInit.kt

@@ -20,9 +20,8 @@ class RootInit : Shell.Initializer() {
         val job = shell.newJob()
         if (shell.isRoot) {
             job.add(context.rawResource(R.raw.util_functions))
-                    .add(context.rawResource(R.raw.utils))
+                .add(context.rawResource(R.raw.utils))
             Const.MAGISK_DISABLE_FILE = SuFile("/cache/.disable_magisk")
-            Info.loadMagiskInfo()
         } else {
             job.add(context.rawResource(R.raw.nonroot_utils))
         }