[manager]: show status of kernel

manager/app/src/main/java/me/weishu/kernelsu/Kernels.kt

@@ -0,0 +1,44 @@
+package me.weishu.kernelsu
+
+import android.system.Os
+
+/**
+ * @author weishu
+ * @date 2022/12/10.
+ */
+
+data class KernelVersion(val major: Int, val patchLevel: Int, val subLevel: Int) {
+    override fun toString(): String {
+        return "$major.$patchLevel.$subLevel"
+    }
+
+    fun isGKI(): Boolean {
+
+        // kernel 6.x
+        if (major > 5) {
+            return true
+        }
+
+        // kernel 5.10.x
+        if (major == 5) {
+            return patchLevel >= 10
+        }
+
+        return false
+    }
+}
+
+fun parseKernelVersion(version: String): KernelVersion {
+    val find = "(\\d+)\\.(\\d+)\\.(\\d+)".toRegex().find(version)
+    return if (find != null) {
+        KernelVersion(find.groupValues[1].toInt(), find.groupValues[2].toInt(), find.groupValues[3].toInt())
+    } else {
+        KernelVersion(-1, -1, -1)
+    }
+}
+
+fun getKernelVersion(): KernelVersion {
+    Os.uname().release.let {
+        return parseKernelVersion(it)
+    }
+}