MultiMC metadata: Support updating NeoForge version (#75)

Removed a deleteIfExists call - this should be handled by DownloadTask instead

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

@@ -21,6 +21,7 @@ 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) }
@@ -28,10 +29,24 @@ 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
 
@@ -76,6 +91,7 @@ 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) {
@@ -143,6 +159,7 @@ 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 {
@@ -181,10 +198,18 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 				if (it.cachedLocation != null) {
 					// Ensure wrong-side or optional false files are removed
 					try {
-						Files.deleteIfExists(it.cachedLocation!!.nioPath)
+						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 }
+						}
 					} 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
@@ -284,6 +309,8 @@ internal class DownloadTask private constructor(val metadata: IndexFile.File, va
 				}
 			}
 		}
+
+		completionStatus = CompletionStatus.DOWNLOADED
 	}
 
 	companion object {

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

@@ -48,6 +48,7 @@ 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"
@@ -59,6 +60,7 @@ 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,
@@ -137,4 +139,4 @@ class LauncherUtils internal constructor(private val opts: UpdateManager.Options
 
 		return LauncherStatus.NO_CHANGES
 	}
-}
+}

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

@@ -127,40 +127,44 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 
 		ui.submitProgress(InstallProgress("Checking local files..."))
 
-		// Invalidation checking must be done here, as it must happen before pack/index hashes are checked
+		// If the side changes, invalidate EVERYTHING (even when the index hasn't changed)
+		val invalidateAll = opts.side != manifest.cachedSide
 		val invalidatedUris: MutableList<PackwizFilePath> = ArrayList()
-		for ((fileUri, file) in manifest.cachedFiles) {
-			// ignore onlyOtherSide files
-			if (file.onlyOtherSide) {
-				continue
-			}
+		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()) {
+				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
 					}
-				} 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 (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
+			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
+				}
 			}
 		}
 
@@ -177,6 +181,7 @@ class UpdateManager internal constructor(private val opts: Options, val ui: IUse
 				pf.index.hashFormat,
 				manifest,
 				invalidatedUris,
+				invalidateAll,
 				clientHolder
 			)
 		} catch (e1: Exception) {
@@ -202,18 +207,20 @@ 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>, 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
+	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
+				}
 			}
 		}
 		manifest.indexFileHash = indexHash
@@ -240,31 +247,17 @@ 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) {
-				var alreadyDeleted = false
-				// Delete if option value has been set to false
-				if (file.isOptional && !file.optionValue) {
+				if (indexFile.files.none { it.file.rebase(opts.packFolder) == uri }) { // File has been removed from the index
 					try {
 						Files.deleteIfExists(file.cachedLocation!!.nioPath)
 					} catch (e: IOException) {
-						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.warn("Failed to delete file removed from index", e)
 					}
+					Log.info("Deleted ${file.cachedLocation!!.filename} (removed from pack)")
 					it.remove()
 				}
 			}
@@ -281,9 +274,6 @@ 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")
 		}
@@ -397,7 +387,16 @@ 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 {
-				"Downloaded ${task.name}"
+				when (task.completionStatus) {
+					DownloadTask.CompletionStatus.INCOMPLETE -> "${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)"
+				}
 			}
 			ui.submitProgress(InstallProgress(progress, i + 1, tasks.size))
 

src/main/kotlin/link/infra/packwiz/installer/metadata/curseforge/CurseForgeSourcer.kt

@@ -147,8 +147,9 @@ fun resolveCfMetadata(mods: List<IndexFile.File>, packFolder: PackwizFilePath, c
 				}
 
 				for (indexFile in fileIdMap[fileId]!!) {
+					var modUrl = "${mod.links?.websiteUrl}/files/${fileId}"
 					failures.add(ExceptionDetails(indexFile.name, Exception("This mod is excluded from the CurseForge API and must be downloaded manually.\n" +
-						"Please go to ${mod.links?.websiteUrl}/files/${fileId} and save this file to ${indexFile.destURI.rebase(packFolder).nioPath.absolute()}")))
+						"Please go to ${modUrl} and save this file to ${indexFile.destURI.rebase(packFolder).nioPath.absolute()}"), modUrl))
 				}
 			}
 		}

src/main/kotlin/link/infra/packwiz/installer/ui/data/ExceptionDetails.kt

@@ -2,5 +2,6 @@ package link.infra.packwiz.installer.ui.data
 
 data class ExceptionDetails(
 		val name: String,
-		val exception: Exception
-)
+		val exception: Exception,
+		val modUrl: String? = null
+)

src/main/kotlin/link/infra/packwiz/installer/ui/gui/ExceptionListWindow.kt

@@ -1,5 +1,6 @@
 package link.infra.packwiz.installer.ui.gui
 
+import link.infra.packwiz.installer.util.Log
 import link.infra.packwiz.installer.ui.IUserInterface
 import link.infra.packwiz.installer.ui.data.ExceptionDetails
 import java.awt.BorderLayout
@@ -24,6 +25,24 @@ class ExceptionListWindow(eList: List<ExceptionDetails>, future: CompletableFutu
 		fun getExceptionAt(index: Int) = details[index].exception
 	}
 
+	private fun openUrl(url: String) {
+		try {
+			if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {
+				Desktop.getDesktop().browse(URI(url))
+			} else {
+				val process = Runtime.getRuntime().exec(arrayOf("xdg-open", url));
+				val exitValue = process.waitFor()
+				if (exitValue > 0) {
+					Log.warn("Failed to open $url: xdg-open exited with code $exitValue")
+				}
+			}
+		} catch (e: IOException) {
+			Log.warn("Failed to open $url", e)
+		} catch (e: URISyntaxException) {
+			Log.warn("Failed to open $url", e)
+		}
+	}
+
 	/**
 	 * Create the dialog.
 	 */
@@ -112,6 +131,19 @@ class ExceptionListWindow(eList: List<ExceptionDetails>, future: CompletableFutu
 							this@ExceptionListWindow.dispose()
 						}
 					})
+
+					val missingMods = eList.filter { it.modUrl != null }.map { it.modUrl!! }.toSet()
+
+					if (!missingMods.isEmpty()) {
+						add(JButton("Open missing mods").apply {
+							toolTipText = "Open missing mods in your browser"
+							addActionListener {
+								missingMods.forEach {
+									openUrl(it)
+								}
+							}
+						})
+					}
 				}, BorderLayout.EAST)
 
 				// Errored label
@@ -122,16 +154,8 @@ class ExceptionListWindow(eList: List<ExceptionDetails>, future: CompletableFutu
 				// Left buttons
 				add(JPanel().apply {
 					add(JButton("Report issue").apply {
-						if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {
-							addActionListener {
-								try {
-									Desktop.getDesktop().browse(URI("https://github.com/packwiz/packwiz-installer/issues/new"))
-								} catch (e: IOException) {
-									// lol the button just won't work i guess
-								} catch (e: URISyntaxException) {}
-							}
-						} else {
-							isEnabled = false
+						addActionListener {
+							openUrl("https://github.com/packwiz/packwiz-installer/issues/new")
 						}
 					})
 				}, BorderLayout.WEST)
@@ -150,4 +174,4 @@ class ExceptionListWindow(eList: List<ExceptionDetails>, future: CompletableFutu
 			}
 		})
 	}
-}
+}