update checker using github release page

buildapp/instructions.md

@@ -15,11 +15,11 @@ The filenames must be:
 Then, on the terminal, run following commands:
 
 ```
-jlink --module-path ~/Documents/openjdk/jdk-17.0.1-x86/jmods:mods  --add-modules java.base,java.desktop,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-linux-x86 --no-header-files --no-man-pages --strip-debug --compress=2
-jlink --module-path ~/Documents/openjdk/jdk-17.0.1-arm/jmods:mods  --add-modules java.base,java.desktop,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-linux-arm --no-header-files --no-man-pages --strip-debug --compress=2
-jlink --module-path ~/Documents/openjdk/jdk-17.0.1-windows/jmods:mods  --add-modules java.base,java.desktop,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-windows-x86 --no-header-files --no-man-pages --strip-debug --compress=2
-jlink --module-path ~/Documents/openjdk/jdk-17.0.1.jdk-arm/Contents/Home/jmods:mods  --add-modules java.base,java.desktop,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-osx-arm --no-header-files --no-man-pages --strip-debug --compress=2
-jlink --module-path ~/Documents/openjdk/jdk-17.0.1.jdk-x86/Contents/Home/jmods:mods  --add-modules java.base,java.desktop,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-osx-x86 --no-header-files --no-man-pages --strip-debug --compress=2
+jlink --module-path ~/Documents/openjdk/jdk-17.0.1-x86/jmods:mods  --add-modules java.base,java.desktop,java.net.http,jdk.crypto.ec,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-linux-x86 --no-header-files --no-man-pages --strip-debug --compress=2
+jlink --module-path ~/Documents/openjdk/jdk-17.0.1-arm/jmods:mods  --add-modules java.base,java.desktop,java.net.http,jdk.crypto.ec,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-linux-arm --no-header-files --no-man-pages --strip-debug --compress=2
+jlink --module-path ~/Documents/openjdk/jdk-17.0.1-windows/jmods:mods  --add-modules java.base,java.desktop,java.net.http,jdk.crypto.ec,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-windows-x86 --no-header-files --no-man-pages --strip-debug --compress=2
+jlink --module-path ~/Documents/openjdk/jdk-17.0.1.jdk-arm/Contents/Home/jmods:mods  --add-modules java.base,java.desktop,java.net.http,jdk.crypto.ec,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-osx-arm --no-header-files --no-man-pages --strip-debug --compress=2
+jlink --module-path ~/Documents/openjdk/jdk-17.0.1.jdk-x86/Contents/Home/jmods:mods  --add-modules java.base,java.desktop,java.net.http,jdk.crypto.ec,java.logging,java.scripting,jdk.unsupported --output ~/Documents/Terrarum/out/runtime-osx-x86 --no-header-files --no-man-pages --strip-debug --compress=2
 ```
 
 (note: matching the building machine with the target OS is highly recommended -- Use Linux for building linux x86/arm; Mac for building macOS x86/arm; Windows for building Windows Java Runtime)

src/net/torvald/terrarum/App.java

@@ -1,11 +1,9 @@
 package net.torvald.terrarum;
 
 import com.badlogic.gdx.*;
-import com.badlogic.gdx.Graphics;
 import com.badlogic.gdx.audio.AudioDevice;
 import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
 import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
-import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Graphics;
 import com.badlogic.gdx.controllers.Controllers;
 import com.badlogic.gdx.graphics.*;
 import com.badlogic.gdx.graphics.Color;
@@ -32,7 +30,6 @@ import net.torvald.terrarum.langpack.Lang;
 import net.torvald.terrarum.modulebasegame.IngameRenderer;
 import net.torvald.terrarum.modulebasegame.TerrarumIngame;
 import net.torvald.terrarum.modulebasegame.ui.ItemSlotImageFactory;
-import net.torvald.terrarum.serialise.Common;
 import net.torvald.terrarum.serialise.WriteConfig;
 import net.torvald.terrarum.ui.Toolkit;
 import net.torvald.terrarum.utils.JsonFetcher;
@@ -44,7 +41,6 @@ import net.torvald.unsafe.DanglingPointerException;
 import net.torvald.unsafe.UnsafeHelper;
 import net.torvald.util.DebugTimers;
 
-import java.awt.*;
 import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
@@ -327,6 +323,8 @@ public class App implements ApplicationListener {
     public static long bogoflops = 0L;
     private static double bogoflopf = Math.random();
 
+    public static boolean hasUpdate = true;
+
     public static Screen getCurrentScreen() {
         return currentScreen;
     }
@@ -1115,6 +1113,10 @@ public class App implements ApplicationListener {
         }
 
 
+        hasUpdate = CheckUpdate.INSTANCE.hasUpdate();
+        printdbg(this, "Has update: " + hasUpdate);
+
+
         printdbg(this, "PostInit done");
     }
 

src/net/torvald/terrarum/CheckUpdate.kt

@@ -0,0 +1,70 @@
+package net.torvald.terrarum
+
+import net.torvald.terrarum.App.printdbg
+import net.torvald.terrarum.App.printdbgerr
+import net.torvald.terrarum.savegame.ByteArray64GrowableOutputStream
+import net.torvald.terrarum.savegame.DiskSkimmer.Companion.read
+import java.io.*
+import java.net.MalformedURLException
+import java.net.URI
+import java.net.URL
+import java.net.http.HttpClient
+import java.net.http.HttpRequest
+import java.net.http.HttpResponse
+
+/**
+ * Created by minjaesong on 2023-10-03.
+ */
+object CheckUpdate {
+
+    private val versionNumFull = App.getVERSION_STRING()
+    private val versionNumOnly = String.format(
+        "%d.%d.%d",
+        App.VERSION_RAW ushr 48,
+        App.VERSION_RAW and 0xffff000000L ushr 24,
+        App.VERSION_RAW and 0xffffffL
+    )
+
+    private val checkUpdateURL = setOf(
+        "https://github.com/curioustorvald/Terrarum/releases/tag/v$versionNumOnly",
+        "https://github.com/curioustorvald/Terrarum/releases/tag/v$versionNumFull",
+    ).toList()
+
+    private fun wget(url: String): String? {
+        printdbg(this, "wget $url")
+
+        var ret: String? = null
+        var fail: Throwable? = null
+        try {
+            // check the http connection before we do anything to the fs
+            val client = HttpClient.newBuilder().build()
+            val request = HttpRequest.newBuilder().uri(URI.create(url)).build()
+            val response = client.send(request, HttpResponse.BodyHandlers.ofString())
+            ret = if (response.statusCode() >= 400) null else response.body()
+
+            printdbg(this, "HTTP ${response.statusCode()}")
+        }
+        catch (e: Throwable) {
+            fail = e
+            printdbgerr(this, "wget $url got error: ${e.stackTraceToString()}")
+        }
+        finally {
+        }
+
+        return ret
+    }
+
+    fun hasUpdate(): Boolean {
+        var allNull = true
+
+        val hasLatestAny = checkUpdateURL.any { url ->
+            val http = wget(url)
+            if (http != null) allNull = false
+            http?.contains("a href=\"/curioustorvald/Terrarum/releases/latest") ?: false
+        }
+
+        return if (allNull) false else !hasLatestAny
+    }
+
+
+}

src/net/torvald/terrarum/Principii.java

@@ -111,6 +111,8 @@ public class Principii {
         cmd0.add(runtime);
         cmd0.addAll(extracmds);
         cmd0.addAll(userDefinedExtraCmds);
+//        cmd0.add("-Dhttps.protocols=SSLv3,TLSv1.2,TLSv1.1,TLSv1");
+//        cmd0.add("-Djavax.net.debug=ssl:handshake:verbose");
         cmd0.add("-Xms1G");
         cmd0.add("-Xmx"+xmx+"G");
         cmd0.add("-cp");