添加安装工具类，并增加把kpmmgr安装到/data/adb/ksu/bin的功能，方便模块调用 (#30)

Co-authored-by: liankong <xhsw.new@qq.com>

manager/app/src/main/java/io/sukisu/ultra/UltraShellHelper.java

@@ -0,0 +1,30 @@
+package io.sukisu.ultra;
+
+import com.topjohnwu.superuser.Shell;
+
+import java.util.ArrayList;
+
+import shirkneko.zako.sukisu.ui.util.KsuCli;
+
+public class UltraShellHelper {
+    public static String runCmd(String cmds) {
+        StringBuilder sb = new StringBuilder();
+        for(String str : KsuCli.INSTANCE.getGLOBAL_MNT_SHELL()
+                .newJob()
+                .add(cmds)
+                .to(new ArrayList<>(), null)
+                .exec()
+                .getOut()) {
+            sb.append(str).append("\n");
+        }
+        return sb.toString();
+    }
+
+    public static boolean isPathExists(String path) {
+        return !runCmd("file " + path).contains("No such file or directory");
+    }
+
+    public static void CopyFileTo(String path, String target) {
+        runCmd("cp -f " + path + " " + target);
+    }
+}

manager/app/src/main/java/io/sukisu/ultra/UltraToolInstall.java

@@ -0,0 +1,15 @@
+package io.sukisu.ultra;
+
+import static shirkneko.zako.sukisu.ui.util.KsuCliKt.getKpmmgrPath;
+import shirkneko.zako.sukisu.ui.util.KsuCli;
+
+public class UltraToolInstall {
+    private static final String OUTSIDE_KPMMGR_PATH = "/data/adb/ksu/bin/kpmmgr";
+    public static void tryToInstall() {
+        String kpmmgrPath = getKpmmgrPath();
+        if (!UltraShellHelper.isPathExists(OUTSIDE_KPMMGR_PATH)) {
+            UltraShellHelper.CopyFileTo(kpmmgrPath, OUTSIDE_KPMMGR_PATH);
+            UltraShellHelper.runCmd("chmod a+rx " + OUTSIDE_KPMMGR_PATH);
+        }
+    }
+}

manager/app/src/main/java/shirkneko/zako/sukisu/ui/MainActivity.kt

@@ -41,6 +41,7 @@ import com.ramcosta.composedestinations.animations.NavHostAnimatedDestinationSty
 import com.ramcosta.composedestinations.generated.NavGraphs
 import com.ramcosta.composedestinations.utils.isRouteOnBackStackAsState
 import com.ramcosta.composedestinations.utils.rememberDestinationsNavigator
+import io.sukisu.ultra.UltraToolInstall
 import shirkneko.zako.sukisu.Natives
 import shirkneko.zako.sukisu.ksuApp
 import shirkneko.zako.sukisu.ui.screen.BottomBarDestination
@@ -72,7 +73,10 @@ class MainActivity : ComponentActivity() {
 
 
         val isManager = Natives.becomeManager(ksuApp.packageName)
-        if (isManager) install()
+        if (isManager) {
+            install()
+            UltraToolInstall.tryToInstall()
+        }
 
         setContent {
             KernelSUTheme {

manager/app/src/main/java/shirkneko/zako/sukisu/ui/util/KsuCli.kt

@@ -481,7 +481,7 @@ fun susfsSUS_SU_Mode(): String {
     return result
 }
 
-private fun getKpmmgrPath(): String {
+fun getKpmmgrPath(): String {
     return ksuApp.applicationInfo.nativeLibraryDir + File.separator + "libkpmmgr.so"
 }