Start porting to Kotlin

2025-11-01 11:14:31 +01:00 · 2019-12-19 12:25:20 +00:00
parent c0c318772b
commit b45a2983e7
13 changed files with 464 additions and 521 deletions
--- a/src/main/kotlin/link/infra/packwiz/installer/Main.kt
+++ b/src/main/kotlin/link/infra/packwiz/installer/Main.kt
@@ -0,0 +1,123 @@
+package link.infra.packwiz.installer
+
+import link.infra.packwiz.installer.metadata.SpaceSafeURI
+import link.infra.packwiz.installer.ui.CLIHandler
+import link.infra.packwiz.installer.ui.InputStateHandler
+import link.infra.packwiz.installer.ui.InstallWindow
+import org.apache.commons.cli.DefaultParser
+import org.apache.commons.cli.Options
+import org.apache.commons.cli.ParseException
+import java.awt.EventQueue
+import java.awt.GraphicsEnvironment
+import java.net.URISyntaxException
+import javax.swing.JOptionPane
+import javax.swing.UIManager
+import kotlin.system.exitProcess
+
+@Suppress("unused")
+class Main(args: Array<String>) {
+	private fun startup(args: Array<String>) {
+		val options = Options()
+		addNonBootstrapOptions(options)
+		addBootstrapOptions(options)
+
+		val parser = DefaultParser()
+		val cmd = try {
+			parser.parse(options, args)
+		} catch (e: ParseException) {
+			e.printStackTrace()
+			try {
+				UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName())
+			} catch (e1: Exception) {
+				// Ignore the exceptions, just continue using the ugly L&F
+			}
+			JOptionPane.showMessageDialog(null, e.message, "packwiz-installer", JOptionPane.ERROR_MESSAGE)
+			exitProcess(1)
+		}
+
+		// if "headless", GUI creation will fail anyway!
+		val ui = if (cmd.hasOption("no-gui") || GraphicsEnvironment.isHeadless()) {
+			CLIHandler()
+		} else InstallWindow()
+
+		val unparsedArgs = cmd.args
+		if (unparsedArgs.size > 1) {
+			ui.handleExceptionAndExit(RuntimeException("Too many arguments specified!"))
+		} else if (unparsedArgs.isEmpty()) {
+			ui.handleExceptionAndExit(RuntimeException("URI to install from must be specified!"))
+		}
+
+		cmd.getOptionValue("title")?.also {
+			ui.setTitle(it)
+		}
+
+		val inputStateHandler = InputStateHandler()
+		ui.show(inputStateHandler)
+
+		val uOptions = UpdateManager.Options().apply {
+			side = cmd.getOptionValue("side")?.let { UpdateManager.Options.Side.from(it) } ?: side
+			packFolder = cmd.getOptionValue("pack-folder") ?: packFolder
+			manifestFile = cmd.getOptionValue("meta-file") ?: manifestFile
+		}
+
+		try {
+			uOptions.downloadURI = SpaceSafeURI(unparsedArgs[0])
+		} catch (e: URISyntaxException) {
+			// TODO: better error message?
+			ui.handleExceptionAndExit(e)
+		}
+
+		// Start update process!
+		// TODO: start in SwingWorker?
+		try {
+			ui.executeManager {
+				try {
+					UpdateManager(uOptions, ui, inputStateHandler)
+				} catch (e: Exception) { // TODO: better error message?
+					ui.handleExceptionAndExit(e)
+				}
+			}
+		} catch (e: Exception) { // TODO: better error message?
+			ui.handleExceptionAndExit(e)
+		}
+	}
+
+	companion object {
+		// Called by packwiz-installer-bootstrap to set up the help command
+		fun addNonBootstrapOptions(options: Options) {
+			options.addOption("s", "side", true, "Side to install mods from (client/server, defaults to client)")
+			options.addOption(null, "title", true, "Title of the installer window")
+			options.addOption(null, "pack-folder", true, "Folder to install the pack to (defaults to the JAR directory)")
+			options.addOption(null, "meta-file", true, "JSON file to store pack metadata, relative to the pack folder (defaults to packwiz.json)")
+		}
+
+		// TODO: link these somehow so they're only defined once?
+		private fun addBootstrapOptions(options: Options) {
+			options.addOption(null, "bootstrap-update-url", true, "Github API URL for checking for updates")
+			options.addOption(null, "bootstrap-update-token", true, "Github API Access Token, for private repositories")
+			options.addOption(null, "bootstrap-no-update", false, "Don't update packwiz-installer")
+			options.addOption(null, "bootstrap-main-jar", true, "Location of the packwiz-installer JAR file")
+			options.addOption("g", "no-gui", false, "Don't display a GUI to show update progress")
+			options.addOption("h", "help", false, "Display this message") // Implemented in packwiz-installer-bootstrap!
+		}
+	}
+
+	// Actual main() is in RequiresBootstrap!
+	init {
+		// Big overarching try/catch just in case everything breaks
+		try {
+			startup(args)
+		} catch (e: Exception) {
+			e.printStackTrace()
+			EventQueue.invokeLater {
+				JOptionPane.showMessageDialog(null,
+						"A fatal error occurred: \n" + e.javaClass.canonicalName + ": " + e.message,
+						"packwiz-installer", JOptionPane.ERROR_MESSAGE)
+				exitProcess(1)
+			}
+			// In case the EventQueue is broken, exit after 1 minute
+			Thread.sleep(60 * 1000.toLong())
+			exitProcess(1)
+		}
+	}
+}