From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dreeam <61569423+Dreeam-qwq@users.noreply.github.com>
Date: Sat, 3 Feb 2024 18:45:53 -0500
Subject: [PATCH] Configurable LibraryLoader maven repos

TODO - Dreeam: Support multi maven repos for lib downloading.

Add JVM flag `-DLeaf.library-download-repo=link` to choose library download repo link.
e.g. `-DLeaf.library-download-repo=https://maven.aliyun.com/repository/public`

diff --git a/src/main/java/io/papermc/paper/plugin/loader/library/impl/MavenLibraryResolver.java b/src/main/java/io/papermc/paper/plugin/loader/library/impl/MavenLibraryResolver.java
index 107705db2d82b7c191e5e625ec888e0bc3b03831..77a58fc7c173b1724d44b0eeaf23b4a1b22b5fcb 100644
--- a/src/main/java/io/papermc/paper/plugin/loader/library/impl/MavenLibraryResolver.java
+++ b/src/main/java/io/papermc/paper/plugin/loader/library/impl/MavenLibraryResolver.java
@@ -105,7 +105,7 @@ public class MavenLibraryResolver implements ClassPathLibrary {
      * dependencies from
      */
     public void addRepository(final RemoteRepository remoteRepository) {
-        this.repositories.add(remoteRepository);
+        this.repositories.add(org.dreeam.leaf.plugin.loader.MavenCentralMirror.getCentralRepo(remoteRepository)); // Leaf - Configurable LibraryLoader maven repos
     }
 
     /**
diff --git a/src/main/java/org/bukkit/plugin/java/LibraryLoader.java b/src/main/java/org/bukkit/plugin/java/LibraryLoader.java
index cfe41c0a67c8d729b6bd23b0cfa32db3c9db9f74..9f167a9cb4a93a79b8ed709b61214ce0138a875d 100644
--- a/src/main/java/org/bukkit/plugin/java/LibraryLoader.java
+++ b/src/main/java/org/bukkit/plugin/java/LibraryLoader.java
@@ -74,7 +74,19 @@ public class LibraryLoader {
         session.setSystemProperties(System.getProperties());
         session.setReadOnly();
 
-        this.repositories = repository.newResolutionRepositories(session, Arrays.asList(new RemoteRepository.Builder("central", "default", "https://repo.maven.apache.org/maven2").build()));
+        // Leaf start - Configurable LibraryLoader maven repos
+        this.repositories = repository.newResolutionRepositories(
+                session,
+                List.of(org.dreeam.leaf.plugin.loader.MavenCentralMirror.getCentralRepo("https://repo.maven.apache.org/maven2"))
+        );
+        /* // Dreeam TODO
+        this.repositories = repository.newResolutionRepositories(session, List.of(
+                new RemoteRepository.Builder("central", "default", "https://repo.maven.apache.org/maven2").build(),
+                new RemoteRepository.Builder("aliyun", "default", "https://maven.aliyun.com/repository/public").build(),
+                new RemoteRepository.Builder("tencentclound", "default", "https://mirrors.cloud.tencent.com/nexus/repository/maven-public/").build(),
+                new RemoteRepository.Builder("huaweicloud", "default", "https://repo.huaweicloud.com/repository/maven/").build()
+        ));*/
+        // Leaf end - Configurable LibraryLoader maven repos
     }
 
     @Nullable
diff --git a/src/main/java/org/dreeam/leaf/plugin/loader/MavenCentralMirror.java b/src/main/java/org/dreeam/leaf/plugin/loader/MavenCentralMirror.java
new file mode 100644
index 0000000000000000000000000000000000000000..95534cb6d771a0fe288e7c843c41b0036bdc7095
--- /dev/null
+++ b/src/main/java/org/dreeam/leaf/plugin/loader/MavenCentralMirror.java
@@ -0,0 +1,24 @@
+package org.dreeam.leaf.plugin.loader;
+
+import org.eclipse.aether.repository.RemoteRepository;
+
+public class MavenCentralMirror {
+
+    public static final String MAVEN_CENTRAL_MIRROR_REPO = System.getProperty("Leaf.library-download-repo");
+
+    public static RemoteRepository getCentralRepo(RemoteRepository repo) {
+        if (MAVEN_CENTRAL_MIRROR_REPO != null && repo.getUrl().contains("repo.maven.apache.org/maven2")) {
+            repo = new RemoteRepository.Builder("central", "default", MAVEN_CENTRAL_MIRROR_REPO).build();
+        }
+
+        return repo;
+    }
+
+    public static RemoteRepository getCentralRepo(String repo) {
+        if (MAVEN_CENTRAL_MIRROR_REPO != null) {
+            repo = MAVEN_CENTRAL_MIRROR_REPO;
+        }
+
+        return new RemoteRepository.Builder("central", "default", repo).build();
+    }
+}