Core: prevent crash when applying large flag sets (#1059)

.github/workflows/buildCi.yml

@@ -37,7 +37,10 @@ jobs:
 
       - name: Get Commit Message
         id: commitMessage
-        run: IN="${{ github.event.head_commit.message }}" && echo "message=${IN%%$'\n'*}" >> $GITHUB_OUTPUT
+        env:
+          FULL_MSG: ${{ github.event.head_commit.message }}
+        run: |
+          echo "message=${FULL_MSG%%$'\n'*}" >> $GITHUB_OUTPUT
 
       - name: Setup JDK
         uses: actions/setup-java@v4

app/build.gradle.kts

@@ -26,8 +26,8 @@ android {
         applicationId = "de.dertyp7214.rboardthememanager"
         minSdk = 31
         targetSdk = 36
-        versionCode = 396000
-        versionName = "3.9.6"
+        versionCode = 397000
+        versionName = "3.9.7"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

app/src/main/java/de/dertyp7214/rboardthememanager/core/PorcessBuilder.kt

@@ -2,10 +2,21 @@ package de.dertyp7214.rboardthememanager.core
 
 import com.dertyp7214.logs.helpers.Logger
 import java.io.File
+import java.io.OutputStreamWriter
 
 fun ProcessBuilder.su(vararg command: String): Process {
     Logger.log(Logger.Companion.Type.INFO, "[ProcessBuilder.su]", command.joinToString(", "))
     redirectError(File("/dev/null"))
-    command("su", "--mount-master", "-c", command.joinToString("; "))
-    return start()
-}
+
+    // Start su without -c to avoid ARG_MAX overflow
+    command("su", "--mount-master")
+    val proc = start()
+
+    // Write commands through stdin instead of argv
+    OutputStreamWriter(proc.outputStream).use { w ->
+        command.forEach { w.appendLine(it) }
+        w.appendLine("exit")
+    }
+
+    return proc
+}