src/main/kotlin/link/infra/packwiz/installer/DownloadTask.kt

@@ -21,7 +21,6 @@ import java.nio.file.StandardCopyOption
 
 internal class DownloadTask private constructor(val metadata: IndexFile.File, val index: IndexFile, private val downloadSide: Side) : IOptionDetails {
 	var cachedFile: ManifestFile.File? = null
-		private set
 
 	private var err: Exception? = null
 	val exceptionDetails get() = err?.let { e -> ExceptionDetails(name, e) }
@@ -29,24 +28,10 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 	fun failed() = err != null
 
 	var alreadyUpToDate = false
-		private set
 	private var metadataRequired = true
 	private var invalidated = false
 	// If file is new or isOptional changed to true, the option needs to be presented again
 	private var newOptional = true
-	var completionStatus = CompletionStatus.INCOMPLETE
-		private set
-
-	enum class CompletionStatus {
-		INCOMPLETE,
-		DOWNLOADED,
-		ALREADY_EXISTS_CACHED,
-		ALREADY_EXISTS_VALIDATED,
-		SKIPPED_DISABLED,
-		SKIPPED_WRONG_SIDE,
-		DELETED_DISABLED,
-		DELETED_WRONG_SIDE;
-	}
 
 	val isOptional get() = metadata.linkedFile?.option?.optional ?: false
 
@@ -91,7 +76,6 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 			if (currHash == cachedFile.hash) { // Already up to date
 				alreadyUpToDate = true
 				metadataRequired = false
-				completionStatus = CompletionStatus.ALREADY_EXISTS_CACHED
 			}
 		}
 		if (cachedFile.isOptional) {
@@ -159,7 +143,6 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 					fileSource.buffer().readAll(blackholeSink())
 					if (hash == fileSource.hash) {
 						alreadyUpToDate = true
-						completionStatus = CompletionStatus.ALREADY_EXISTS_VALIDATED
 
 						// Update the manifest file
 						cachedFile = (cachedFile ?: ManifestFile.File()).also {
@@ -198,18 +181,10 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 				if (it.cachedLocation != null) {
 					// Ensure wrong-side or optional false files are removed
 					try {
-						completionStatus = if (Files.deleteIfExists(it.cachedLocation!!.nioPath)) {
-							if (correctSide()) { CompletionStatus.DELETED_DISABLED } else { CompletionStatus.DELETED_WRONG_SIDE }
-						} else {
-							if (correctSide()) { CompletionStatus.SKIPPED_DISABLED } else { CompletionStatus.SKIPPED_WRONG_SIDE }
-						}
+						Files.deleteIfExists(it.cachedLocation!!.nioPath)
 					} catch (e: IOException) {
 						Log.warn("Failed to delete file", e)
 					}
-				} else {
-					completionStatus =
-						if (correctSide()) { CompletionStatus.SKIPPED_DISABLED }
-						else { CompletionStatus.SKIPPED_WRONG_SIDE }
 				}
 				it.cachedLocation = null
 				return
@@ -309,8 +284,6 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 				}
 			}
 		}
-
-		completionStatus = CompletionStatus.DOWNLOADED
 	}
 
 	companion object {

src/main/kotlin/link/infra/packwiz/installer/LauncherUtils.kt

@@ -48,7 +48,6 @@ class LauncherUtils internal constructor(private val opts: UpdateManager.Options
 		val modLoaders = hashMapOf(
 			"net.minecraft" to "minecraft",
 			"net.minecraftforge" to "forge",
-			"net.neoforged" to "neoforge",
 			"net.fabricmc.fabric-loader" to "fabric",
 			"org.quiltmc.quilt-loader" to "quilt",
 			"com.mumfrey.liteloader" to "liteloader"
@@ -60,7 +59,6 @@ class LauncherUtils internal constructor(private val opts: UpdateManager.Options
 			"org.lwjgl" to -1,
 			"org.lwjgl3" to -1,
 			"net.minecraftforge" to 5,
-			"net.neoforged" to 5,
 			"net.fabricmc.fabric-loader" to 10,
 			"org.quiltmc.quilt-loader" to 10,
 			"com.mumfrey.liteloader" to 10,

src/main/kotlin/link/infra/packwiz/installer/UpdateManager.kt

@@ -127,45 +127,41 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 
 		ui.submitProgress(InstallProgress("Checking local files..."))
 
-		// If the side changes, invalidate EVERYTHING (even when the index hasn't changed)
-		val invalidateAll = opts.side != manifest.cachedSide
+		// Invalidation checking must be done here, as it must happen before pack/index hashes are checked
 		val invalidatedUris: MutableList<PackwizFilePath> = ArrayList()
-		if (!invalidateAll) {
-			// Invalidation checking must be done here, as it must happen before pack/index hashes are checked
-			for ((fileUri, file) in manifest.cachedFiles) {
-				// ignore onlyOtherSide files
-				if (file.onlyOtherSide) {
-					continue
-				}
-
-				var invalid = false
-				// if isn't optional, or is optional but optionValue == true
-				if (!file.isOptional || file.optionValue) {
-					if (file.cachedLocation != null) {
-						if (!file.cachedLocation!!.nioPath.toFile().exists()) {
-							invalid = true
-						}
-					} else {
-						// if cachedLocation == null, should probably be installed!!
-						invalid = true
-					}
-				}
-				if (invalid) {
-					Log.info("File ${fileUri.filename} invalidated, marked for redownloading")
-					invalidatedUris.add(fileUri)
-				}
+		for ((fileUri, file) in manifest.cachedFiles) {
+			// ignore onlyOtherSide files
+			if (file.onlyOtherSide) {
+				continue
 			}
 
-			if (manifest.packFileHash?.let { it == packFileSource.hash } == true && invalidatedUris.isEmpty()) {
-				// todo: --force?
-				ui.submitProgress(InstallProgress("Modpack is already up to date!", 1, 1))
-				if (manifest.cachedFiles.any { it.value.isOptional }) {
-					ui.awaitOptionalButton(false, opts.timeout)
-				}
-				if (!ui.optionsButtonPressed) {
-					return
+			var invalid = false
+			// if isn't optional, or is optional but optionValue == true
+			if (!file.isOptional || file.optionValue) {
+				if (file.cachedLocation != null) {
+					if (!file.cachedLocation!!.nioPath.toFile().exists()) {
+						invalid = true
+					}
+				} else {
+					// if cachedLocation == null, should probably be installed!!
+					invalid = true
 				}
 			}
+			if (invalid) {
+				Log.info("File ${fileUri.filename} invalidated, marked for redownloading")
+				invalidatedUris.add(fileUri)
+			}
+		}
+
+		if (manifest.packFileHash?.let { it == packFileSource.hash } == true && invalidatedUris.isEmpty()) {
+			// todo: --force?
+			ui.submitProgress(InstallProgress("Modpack is already up to date!", 1, 1))
+			if (manifest.cachedFiles.any { it.value.isOptional }) {
+				ui.awaitOptionalButton(false, opts.timeout)
+			}
+			if (!ui.optionsButtonPressed) {
+				return
+			}
 		}
 
 		Log.info("Modpack name: ${pf.name}")
@@ -181,7 +177,6 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 				pf.index.hashFormat,
 				manifest,
 				invalidatedUris,
-				invalidateAll,
 				clientHolder
 			)
 		} catch (e1: Exception) {
@@ -207,20 +202,18 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 		}
 	}
 
-	private fun processIndex(indexUri: PackwizPath<*>, indexHash: Hash<*>, hashFormat: HashFormat<*>, manifest: ManifestFile, invalidatedFiles: List<PackwizFilePath>, invalidateAll: Boolean, clientHolder: ClientHolder) {
-		if (!invalidateAll) {
-			if (manifest.indexFileHash == indexHash && invalidatedFiles.isEmpty()) {
-				ui.submitProgress(InstallProgress("Modpack files are already up to date!", 1, 1))
-				if (manifest.cachedFiles.any { it.value.isOptional }) {
-					ui.awaitOptionalButton(false, opts.timeout)
-				}
-				if (!ui.optionsButtonPressed) {
-					return
-				}
-				if (ui.cancelButtonPressed) {
-					showCancellationDialog()
-					return
-				}
+	private fun processIndex(indexUri: PackwizPath<*>, indexHash: Hash<*>, hashFormat: HashFormat<*>, manifest: ManifestFile, invalidatedFiles: List<PackwizFilePath>, clientHolder: ClientHolder) {
+		if (manifest.indexFileHash == indexHash && invalidatedFiles.isEmpty()) {
+			ui.submitProgress(InstallProgress("Modpack files are already up to date!", 1, 1))
+			if (manifest.cachedFiles.any { it.value.isOptional }) {
+				ui.awaitOptionalButton(false, opts.timeout)
+			}
+			if (!ui.optionsButtonPressed) {
+				return
+			}
+			if (ui.cancelButtonPressed) {
+				showCancellationDialog()
+				return
 			}
 		}
 		manifest.indexFileHash = indexHash
@@ -247,17 +240,31 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 		}
 
 		ui.submitProgress(InstallProgress("Checking local files..."))
+		// TODO: use kotlin filtering/FP rather than an iterator?
 		val it: MutableIterator<Map.Entry<PackwizFilePath, ManifestFile.File>> = manifest.cachedFiles.entries.iterator()
 		while (it.hasNext()) {
 			val (uri, file) = it.next()
 			if (file.cachedLocation != null) {
-				if (indexFile.files.none { it.file.rebase(opts.packFolder) == uri }) { // File has been removed from the index
+				var alreadyDeleted = false
+				// Delete if option value has been set to false
+				if (file.isOptional && !file.optionValue) {
 					try {
 						Files.deleteIfExists(file.cachedLocation!!.nioPath)
 					} catch (e: IOException) {
-						Log.warn("Failed to delete file removed from index", e)
+						Log.warn("Failed to delete optional disabled file", e)
+					}
+					// Set to null, as it doesn't exist anymore
+					file.cachedLocation = null
+					alreadyDeleted = true
+				}
+				if (indexFile.files.none { it.file.rebase(opts.packFolder) == uri }) { // File has been removed from the index
+					if (!alreadyDeleted) {
+						try {
+							Files.deleteIfExists(file.cachedLocation!!.nioPath)
+						} catch (e: IOException) {
+							Log.warn("Failed to delete file removed from index", e)
+						}
 					}
-					Log.info("Deleted ${file.cachedLocation!!.filename} (removed from pack)")
 					it.remove()
 				}
 			}
@@ -274,6 +281,9 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 			Log.warn("Index is empty!")
 		}
 		val tasks = createTasksFromIndex(indexFile, opts.side)
+		// If the side changes, invalidate EVERYTHING just in case
+		// Might not be needed, but done just to be safe
+		val invalidateAll = opts.side != manifest.cachedSide
 		if (invalidateAll) {
 			Log.info("Side changed, invalidating all mods")
 		}
@@ -387,16 +397,7 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 			val progress = if (exDetails != null) {
 				"Failed to download ${exDetails.name}: ${exDetails.exception.message}"
 			} else {
-				when (task.completionStatus) {
-					DownloadTask.CompletionStatus.INCOMPLETE -> "${task.name} pending (you should never see this...)"
-					DownloadTask.CompletionStatus.DOWNLOADED -> "Downloaded ${task.name}"
-					DownloadTask.CompletionStatus.ALREADY_EXISTS_CACHED -> "${task.name} already exists (cached)"
-					DownloadTask.CompletionStatus.ALREADY_EXISTS_VALIDATED -> "${task.name} already exists (validated)"
-					DownloadTask.CompletionStatus.SKIPPED_DISABLED -> "Skipped ${task.name} (disabled)"
-					DownloadTask.CompletionStatus.SKIPPED_WRONG_SIDE -> "Skipped ${task.name} (wrong side)"
-					DownloadTask.CompletionStatus.DELETED_DISABLED -> "Deleted ${task.name} (disabled)"
-					DownloadTask.CompletionStatus.DELETED_WRONG_SIDE -> "Deleted ${task.name} (wrong side)"
-				}
+				"Downloaded ${task.name}"
 			}
 			ui.submitProgress(InstallProgress(progress, i + 1, tasks.size))