Build system changes

== AT ==
public net.minecraft.server.packs.VanillaPackResourcesBuilder safeGetPath(Ljava/net/URI;)Ljava/nio/file/Path;

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

paper-server/build.gradle.kts

@@ -8,9 +8,7 @@ plugins {
 dependencies {
     implementation(project(":paper-api"))
     implementation("jline:jline:2.12.1")
-    implementation("org.apache.logging.log4j:log4j-iostreams:2.24.1") {
-        exclude(group = "org.apache.logging.log4j", module = "log4j-api")
-    }
+    implementation("org.apache.logging.log4j:log4j-iostreams:2.24.1") // Paper - remove exclusion
     implementation("org.ow2.asm:asm-commons:9.7.1")
     implementation("commons-lang:commons-lang:2.6")
     runtimeOnly("org.xerial:sqlite-jdbc:3.47.0.0")
@@ -39,6 +37,7 @@ tasks.jar {
         val gitHash = git("rev-parse", "--short=7", "HEAD").getText().trim()
         val implementationVersion = System.getenv("BUILD_NUMBER") ?: "\"$gitHash\""
         val date = git("show", "-s", "--format=%ci", gitHash).getText().trim() // Paper
+        val gitBranch = git("rev-parse", "--abbrev-ref", "HEAD").getText().trim() // Paper
         attributes(
             "Main-Class" to "org.bukkit.craftbukkit.Main",
             "Implementation-Title" to "CraftBukkit",
@@ -47,6 +46,9 @@ tasks.jar {
             "Specification-Title" to "Bukkit",
             "Specification-Version" to project.version,
             "Specification-Vendor" to "Bukkit Team",
+            "Git-Branch" to gitBranch, // Paper
+            "Git-Commit" to gitHash, // Paper
+            "CraftBukkit-Package-Version" to paperweight.craftBukkitPackageVersion.get(), // Paper
         )
         for (tld in setOf("net", "com", "org")) {
             attributes("$tld/bukkit", "Sealed" to true)
@@ -59,6 +61,17 @@ publishing {
     }
 }
 
+// Paper start
+val scanJar = tasks.register("scanJarForBadCalls", io.papermc.paperweight.tasks.ScanJarForBadCalls::class) {
+    badAnnotations.add("Lio/papermc/paper/annotation/DoNotUse;")
+    jarToScan.set(tasks.serverJar.flatMap { it.archiveFile })
+    classpath.from(configurations.compileClasspath)
+}
+tasks.check {
+    dependsOn(scanJar)
+}
+// Paper end
+
 tasks.test {
     include("**/**TestSuite.class")
     workingDir = temporaryDir
@@ -128,4 +141,5 @@ tasks.registerRunTask("runReobf") {
 tasks.registerRunTask("runDev") {
     description = "Spin up a non-relocated Mojang-mapped test server"
     classpath(sourceSets.main.map { it.runtimeClasspath })
+    jvmArgs("-DPaper.pushPaperAssetsRoot=true")
 }

paper-server/patches/sources/net/minecraft/resources/ResourceLocation.java.patch

@@ -0,0 +1,10 @@
+--- a/net/minecraft/resources/ResourceLocation.java
++++ b/net/minecraft/resources/ResourceLocation.java
+@@ -32,6 +32,7 @@
+     public static final char NAMESPACE_SEPARATOR = ':';
+     public static final String DEFAULT_NAMESPACE = "minecraft";
+     public static final String REALMS_NAMESPACE = "realms";
++    public static final String PAPER_NAMESPACE = "paper"; // Paper
+     private final String namespace;
+     private final String path;
+ 

paper-server/patches/sources/net/minecraft/server/packs/VanillaPackResourcesBuilder.java.patch

@@ -0,0 +1,18 @@
+--- a/net/minecraft/server/packs/VanillaPackResourcesBuilder.java
++++ b/net/minecraft/server/packs/VanillaPackResourcesBuilder.java
+@@ -138,6 +138,15 @@
+ 
+     public VanillaPackResourcesBuilder applyDevelopmentConfig() {
+         developmentConfig.accept(this);
++        if (Boolean.getBoolean("Paper.pushPaperAssetsRoot")) {
++            try {
++                this.pushAssetPath(net.minecraft.server.packs.PackType.SERVER_DATA, net.minecraft.server.packs.VanillaPackResourcesBuilder.safeGetPath(java.util.Objects.requireNonNull(
++                    // Important that this is a patched class
++                    VanillaPackResourcesBuilder.class.getResource("/data/.paperassetsroot"), "Missing required .paperassetsroot file").toURI()).getParent());
++            } catch (java.net.URISyntaxException | IOException ex) {
++                throw new RuntimeException(ex);
++            }
++        }
+         return this;
+     }
+ 

paper-server/patches/sources/net/minecraft/server/packs/repository/ServerPacksSource.java.patch

@@ -0,0 +1,31 @@
+--- a/net/minecraft/server/packs/repository/ServerPacksSource.java
++++ b/net/minecraft/server/packs/repository/ServerPacksSource.java
+@@ -48,7 +48,7 @@
+     public static VanillaPackResources createVanillaPackSource() {
+         return new VanillaPackResourcesBuilder()
+             .setMetadata(BUILT_IN_METADATA)
+-            .exposeNamespace("minecraft")
++            .exposeNamespace("minecraft", ResourceLocation.PAPER_NAMESPACE) // Paper
+             .applyDevelopmentConfig()
+             .pushJarResources()
+             .build(VANILLA_PACK_INFO);
+@@ -68,7 +68,18 @@
+     @Nullable
+     @Override
+     protected Pack createBuiltinPack(String fileName, Pack.ResourcesSupplier packFactory, Component displayName) {
+-        return Pack.readMetaAndCreate(createBuiltInPackLocation(fileName, displayName), packFactory, PackType.SERVER_DATA, FEATURE_SELECTION_CONFIG);
++        // Paper start - custom built-in pack
++        final PackLocationInfo info;
++        final PackSelectionConfig packConfig;
++        if ("paper".equals(fileName)) {
++            info = new PackLocationInfo(fileName, displayName, PackSource.BUILT_IN, Optional.empty());
++            packConfig = new PackSelectionConfig(true, Pack.Position.TOP, true);
++        } else {
++            info = createBuiltInPackLocation(fileName, displayName);
++            packConfig = FEATURE_SELECTION_CONFIG;
++        }
++        return Pack.readMetaAndCreate(info, packFactory, PackType.SERVER_DATA, packConfig);
++        // Paper end - custom built-in pack
+     }
+ 
+     public static PackRepository createPackRepository(Path dataPacksPath, DirectoryValidator symlinkFinder) {

paper-server/src/main/java/org/bukkit/craftbukkit/Main.java

@@ -199,7 +199,7 @@ public class Main {
                 }
 
                 if (Main.class.getPackage().getImplementationVendor() != null && System.getProperty("IReallyKnowWhatIAmDoingISwear") == null) {
-                    Date buildDate = new Date(Integer.parseInt(Main.class.getPackage().getImplementationVendor()) * 1000L);
+                    Date buildDate = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z").parse(Main.class.getPackage().getImplementationVendor()); // Paper
 
                     Calendar deadline = Calendar.getInstance();
                     deadline.add(Calendar.DAY_OF_YEAR, -2);

paper-server/src/main/java/org/bukkit/craftbukkit/util/Versioning.java

@@ -11,7 +11,7 @@ public final class Versioning {
     public static String getBukkitVersion() {
         String result = "Unknown-Version";
 
-        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/org.spigotmc/spigot-api/pom.properties");
+        InputStream stream = Bukkit.class.getClassLoader().getResourceAsStream("META-INF/maven/io.papermc.paper/paper-api/pom.properties");
         Properties properties = new Properties();
 
         if (stream != null) {

paper-server/src/main/resources/data/minecraft/datapacks/paper/pack.mcmeta

@@ -0,0 +1,6 @@
+{
+    "pack": {
+        "description": "Built-in Paper Datapack",
+        "pack_format": 41
+    }
+}

paper-server/src/test/java/org/bukkit/support/RegistryHelper.java

@@ -70,6 +70,7 @@ public final class RegistryHelper {
     }
 
     public static void setup(FeatureFlagSet featureFlagSet) {
+        System.setProperty("Paper.pushPaperAssetsRoot", "true"); // Paper - build system changes - push asset root
         SharedConstants.tryDetectVersion();
         Bootstrap.bootStrap();