UPDATE

Author: CiiLu

HMCLCore/src/main/java/org/jackhuang/hmcl/download/LibraryAnalyzer.java

@@ -187,6 +187,12 @@ public Set<ModLoaderType> getModLoaders() {
                 .collect(Collectors.toSet());
     }
 
+    public Set<LibraryType> getLibraries() {
+        return Arrays.stream(LibraryType.values())
+                .filter(this::has)
+                .collect(Collectors.toSet());
+    }
+
     public enum LibraryType {
         MINECRAFT(true, "game", "^$", "^$", null),
         LEGACY_FABRIC(true, "legacyfabric", "net\\.fabricmc", "fabric-loader", ModLoaderType.LEGACY_FABRIC) {

HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java

@@ -20,6 +20,7 @@
 import org.jackhuang.hmcl.auth.AuthInfo;
 import org.jackhuang.hmcl.download.LibraryAnalyzer;
 import org.jackhuang.hmcl.game.*;
+import org.jackhuang.hmcl.mod.ModLoaderType;
 import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.ServerAddress;
 import org.jackhuang.hmcl.util.StringUtils;
@@ -579,29 +580,9 @@ private Map<String, String> getEnvVars() {
             }
         }
 
-        if (analyzer.has(LibraryAnalyzer.LibraryType.FORGE)) {
-            env.put("INST_FORGE", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.CLEANROOM)) {
-            env.put("INST_CLEANROOM", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.NEO_FORGE)) {
-            env.put("INST_NEOFORGE", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.LITELOADER)) {
-            env.put("INST_LITELOADER", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.FABRIC)) {
-            env.put("INST_FABRIC", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.OPTIFINE)) {
-            env.put("INST_OPTIFINE", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.QUILT)) {
-            env.put("INST_QUILT", "1");
-        }
-        if (analyzer.has(LibraryAnalyzer.LibraryType.LEGACY_FABRIC)) {
-            env.put("INST_LEGACYFABRIC", "1");
+        for (ModLoaderType type : analyzer.getModLoaders()) {
+            if (type == ModLoaderType.NEO_FORGED) env.put("INST_NEOFORGE", "1");
+            else env.put("INST_" + type.name().toUpperCase(Locale.ROOT), "1");
         }
 
         env.putAll(options.getEnvironmentVariables());

HMCLCore/src/main/java/org/jackhuang/hmcl/mod/mcbbs/McbbsModpackExportTask.java

@@ -94,23 +94,11 @@ public void execute() throws Exception {
 
             // Mcbbs manifest
             List<McbbsModpackManifest.Addon> addons = new ArrayList<>();
-            addons.add(new McbbsModpackManifest.Addon(MINECRAFT.getPatchId(), gameVersion));
-            analyzer.getVersion(FORGE).ifPresent(forgeVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(FORGE.getPatchId(), forgeVersion)));
-            analyzer.getVersion(CLEANROOM).ifPresent(cleanroomVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(CLEANROOM.getPatchId(), cleanroomVersion)));
-            analyzer.getVersion(NEO_FORGE).ifPresent(neoForgeVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(NEO_FORGE.getPatchId(), neoForgeVersion)));
-            analyzer.getVersion(LITELOADER).ifPresent(liteLoaderVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(LITELOADER.getPatchId(), liteLoaderVersion)));
-            analyzer.getVersion(OPTIFINE).ifPresent(optifineVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(OPTIFINE.getPatchId(), optifineVersion)));
-            analyzer.getVersion(FABRIC).ifPresent(fabricVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(FABRIC.getPatchId(), fabricVersion)));
-            analyzer.getVersion(QUILT).ifPresent(quiltVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(QUILT.getPatchId(), quiltVersion)));
-            analyzer.getVersion(LEGACY_FABRIC).ifPresent(legacyfabricVersion ->
-                    addons.add(new McbbsModpackManifest.Addon(LEGACY_FABRIC.getPatchId(), legacyfabricVersion)));
+
+            for (LibraryAnalyzer.LibraryType type : analyzer.getLibraries()) {
+                if (type == MINECRAFT) addons.add(new McbbsModpackManifest.Addon(MINECRAFT.getPatchId(), gameVersion));
+                else addons.add(new McbbsModpackManifest.Addon(type.getPatchId(), analyzer.getVersion(type).orElseThrow()));
+            }
 
             List<Library> libraries = new ArrayList<>();
             // TODO libraries