feat: Add --continue-on-error argument, return non zero exit code if patching fails

src/main/kotlin/app/morphe/cli/command/MainCommand.kt

@@ -5,11 +5,13 @@ import app.morphe.library.logging.Logger
 import picocli.CommandLine
 import picocli.CommandLine.Command
 import picocli.CommandLine.IVersionProvider
-import java.util.*
+import java.util.Properties
+import kotlin.system.exitProcess
 
 fun main(args: Array<String>) {
     Logger.setDefault()
-    CommandLine(MainCommand).execute(*args).let(System::exit)
+    val exitCode = CommandLine(MainCommand).execute(*args)
+    exitProcess(exitCode)
 }
 
 private object CLIVersionProvider : IVersionProvider {
@@ -37,6 +39,6 @@ private object CLIVersionProvider : IVersionProvider {
         ListPatchesCommand::class,
         ListCompatibleVersions::class,
         UtilityCommand::class,
-    ],
+    ]
 )
 private object MainCommand

src/main/kotlin/app/morphe/cli/command/PatchCommand.kt

@@ -28,14 +28,19 @@ import picocli.CommandLine.Spec
 import java.io.File
 import java.io.PrintWriter
 import java.io.StringWriter
+import java.util.concurrent.Callable
 import java.util.logging.Logger
 
 @OptIn(ExperimentalSerializationApi::class)
 @CommandLine.Command(
     name = "patch",
     description = ["Patch an APK file."],
 )
-internal object PatchCommand : Runnable {
+internal object PatchCommand : Callable<Int> {
+
+    private const val EXIT_CODE_SUCCESS = 0
+    private const val EXIT_CODE_ERROR = 1
+
     private val logger = Logger.getLogger(this::class.java.name)
 
     @Spec
@@ -264,7 +269,14 @@ internal object PatchCommand : Runnable {
     )
     private var striplibs: List<String> = emptyList()
 
-    override fun run() {
+    @CommandLine.Option(
+        names = ["--continue-on-error"],
+        description = ["Continue patching even if a patch fails. By default, patching stops on the first error."],
+        showDefaultValue = ALWAYS,
+    )
+    private var continueOnError: Boolean = false
+
+    override fun call(): Int {
         // region Setup
 
         val outputFilePath =
@@ -290,7 +302,7 @@ internal object PatchCommand : Runnable {
                 } else {
                     AdbInstaller(deviceSerial)
                 }
-            } catch (e: DeviceNotFoundException) {
+            } catch (_: DeviceNotFoundException) {
                 if (deviceSerial?.isNotEmpty() == true) {
                     logger.severe(
                         "Device with serial $deviceSerial not found to install to. " +
@@ -303,49 +315,49 @@ internal object PatchCommand : Runnable {
                     )
                 }
 
-                return
+                return EXIT_CODE_ERROR
             }
         } else {
             null
         }
 
         // endregion
 
-        // region Load patches
+        val patchingResult = PatchingResult()
+        var mergedApkToCleanup: File? = null
 
-        logger.info("Loading patches")
+        try {
+            // region Load patches
 
-        val patches = loadPatchesFromJar(patchesFiles)
+            logger.info("Loading patches")
 
-        // endregion
+            val patches = loadPatchesFromJar(patchesFiles)
 
-        val patcherTemporaryFilesPath = temporaryFilesPath.resolve("patcher")
+            // endregion
 
-        // Checking if the file is in apkm format (like reddit)
-        var mergedApkToCleanup: File? = null
-        val inputApk = if (apk.extension.equals("apkm", ignoreCase = true)) {
-            logger.info("Merging APKM bundle")
+            val patcherTemporaryFilesPath = temporaryFilesPath.resolve("patcher")
 
-            // Save merged APK to output directory (will be cleaned up after patching)
-            val outputApk = outputFilePath.parentFile.resolve("${apk.nameWithoutExtension}-merged.apk")
+            // Checking if the file is in apkm format (like reddit)
+            val inputApk = if (apk.extension.equals("apkm", ignoreCase = true)) {
+                logger.info("Merging APKM bundle")
 
-            // Use APKEditor's Merger directly (handles extraction and merging)
-            val mergerOptions = MergerOptions().apply {
-                inputFile = apk  // Original APKM file
-                outputFile = outputApk
-                cleanMeta = true
-            }
-            Merger(mergerOptions).run()
+                // Save merged APK to output directory (will be cleaned up after patching)
+                val outputApk = outputFilePath.parentFile.resolve("${apk.nameWithoutExtension}-merged.apk")
 
-            mergedApkToCleanup = outputApk
-            outputApk
-        } else {
-            apk
-        }
+                // Use APKEditor's Merger directly (handles extraction and merging)
+                val mergerOptions = MergerOptions().apply {
+                    inputFile = apk  // Original APKM file
+                    outputFile = outputApk
+                    cleanMeta = true
+                }
+                Merger(mergerOptions).run()
 
-        val patchingResult = PatchingResult()
+                mergedApkToCleanup = outputApk
+                outputApk
+            } else {
+                apk
+            }
 
-        try {
             val (packageName, patcherResult) = Patcher(
                 PatcherConfig(
                     inputApk,
@@ -393,6 +405,13 @@ internal object PatchCommand : Runnable {
                                             )
                                         )
                                         patchingResult.success = false
+
+                                        if (!continueOnError) {
+                                            throw PatchFailedException(
+                                                "\"${patchResult.patch}\" failed",
+                                                exception
+                                            )
+                                        }
                                     }
                                 } ?: patchResult.patch.let {
                                     patchingResult.appliedPatches.add(patchResult.patch.toSerializablePatch())
@@ -478,26 +497,39 @@ internal object PatchCommand : Runnable {
             }
 
             // endregion
+        } catch (e: PatchFailedException) {
+            logger.severe("Patching aborted: ${e.message}")
+            logger.info(
+                "Use --continue-on-error to skip failed patches and continue patching"
+            )
+            return EXIT_CODE_ERROR
+        } catch (e: Exception) {
+            // Should never happen.
+            logger.severe("An unexpected error occurred: ${e.message}")
+            e.printStackTrace()
+            return EXIT_CODE_ERROR
         } finally {
             patchingResultOutputFilePath?.let { outputFile ->
                 outputFile.outputStream().use { outputStream ->
                     Json.encodeToStream(patchingResult, outputStream)
                 }
                 logger.info("Patching result saved to $outputFile")
             }
-        }
 
-        if (purge) {
-            logger.info("Purging temporary files")
-            purge(temporaryFilesPath)
-        }
+            if (purge) {
+                logger.info("Purging temporary files")
+                purge(temporaryFilesPath)
+            }
 
-        // Clean up merged APK if we created one from APKM
-        mergedApkToCleanup?.let {
-            if (!it.delete()) {
-                logger.warning("Could not clean up merged APK: ${it.path}")
+            // Clean up merged APK if we created one from APKM
+            mergedApkToCleanup?.let {
+                if (!it.delete()) {
+                    logger.warning("Could not clean up merged APK: ${it.path}")
+                }
             }
         }
+
+        return EXIT_CODE_SUCCESS
     }
 
     /**
@@ -578,3 +610,5 @@ internal object PatchCommand : Runnable {
         logger.info(result)
     }
 }
+
+private class PatchFailedException(message: String, cause: Throwable) : Exception(message, cause)