manager: save stderr of installation to log file. fix #723

manager/app/src/main/java/me/weishu/kernelsu/ui/screen/Install.kt

@@ -28,6 +28,7 @@ import me.weishu.kernelsu.ui.util.LocalSnackbarHost
 import me.weishu.kernelsu.ui.util.installModule
 import me.weishu.kernelsu.ui.util.reboot
 import java.io.File
+import java.lang.StringBuilder
 import java.text.SimpleDateFormat
 import java.util.*
 
@@ -40,6 +41,7 @@ import java.util.*
 fun InstallScreen(navigator: DestinationsNavigator, uri: Uri) {
 
     var text by rememberSaveable { mutableStateOf("") }
+    val logContent = StringBuilder()
     var showFloatAction by rememberSaveable { mutableStateOf(false) }
 
     val snackBarHost = LocalSnackbarHost.current
@@ -54,9 +56,12 @@ fun InstallScreen(navigator: DestinationsNavigator, uri: Uri) {
                 if (success) {
                     showFloatAction = true
                 }
-            }) {
+            }, onStdout = {
                 text += "$it\n"
-            }
+                logContent.append(it).append("\n")
+            }, onStderr = {
+                logContent.append(it).append("\n")
+            });
         }
     }
 
@@ -74,7 +79,7 @@ fun InstallScreen(navigator: DestinationsNavigator, uri: Uri) {
                             Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS),
                             "KernelSU_install_log_${date}.log"
                         )
-                        file.writeText(text)
+                        file.writeText(logContent.toString())
                         snackBarHost.showSnackbar("Log saved to ${file.absolutePath}")
                     }
                 }

manager/app/src/main/java/me/weishu/kernelsu/ui/util/KsuCli.kt

@@ -91,7 +91,7 @@ fun uninstallModule(id: String): Boolean {
     return result
 }
 
-fun installModule(uri: Uri, onFinish: (Boolean) -> Unit, onOutput: (String) -> Unit): Boolean {
+fun installModule(uri: Uri, onFinish: (Boolean) -> Unit, onStdout: (String) -> Unit, onStderr: (String) -> Unit): Boolean {
     val resolver = ksuApp.contentResolver
     with(resolver.openInputStream(uri)) {
         val file = File(ksuApp.cacheDir, "module.zip")
@@ -102,14 +102,20 @@ fun installModule(uri: Uri, onFinish: (Boolean) -> Unit, onOutput: (String) -> U
 
         val shell = getRootShell()
 
-        val callbackList: CallbackList<String?> = object : CallbackList<String?>() {
+        val stdoutCallback: CallbackList<String?> = object : CallbackList<String?>() {
             override fun onAddElement(s: String?) {
-                onOutput(s ?: "")
+                onStdout(s ?: "")
+            }
+        }
+
+        val stderrCallback: CallbackList<String?> = object : CallbackList<String?>() {
+            override fun onAddElement(s: String?) {
+                onStderr(s ?: "")
             }
         }
 
         val result =
-            shell.newJob().add("${getKsuDaemonPath()} $cmd").to(callbackList, callbackList).exec()
+            shell.newJob().add("${getKsuDaemonPath()} $cmd").to(stdoutCallback, stderrCallback).exec()
         Log.i("KernelSU", "install module $uri result: $result")
 
         file.delete()

userspace/ksud/src/module.rs

@@ -56,7 +56,6 @@ fn exec_install_script(module_file: &str) -> Result<()> {
         .env("KSU_VER_CODE", defs::VERSION_CODE)
         .env("OUTFD", "1")
         .env("ZIPFILE", realpath)
-        .stderr(Stdio::null())
         .status()?;
     ensure!(result.success(), "Failed to install module script");
     Ok(())