diff --git a/README.md b/README.md
index f677638..aaefb9b 100644
--- a/README.md
+++ b/README.md
@@ -3,10 +3,11 @@
 Modern solution for minecraft resource pack development
 
 ## Features
-- [Resource pack obfuscation](#obfuscation)
-- [Auto CustomModelData Mapping](#autocmd)
-- [Auto fancyPants custom armor](#customarmor)
-- And much more...
+- [Models generating](#meshes--models)
+- [Auto CustomModelData](#auto-custommodeldata)
+- [Auto sounds FFmpeg conversion](#sounds)
+- [Auto fancyPants (custom armor)](#armor-textures)
+- [Obfuscation](#obfuscation)
 
 ## Example Project
 Look at the [example project](https://github.com/Nelonn/ProPack/blob/master/propack-core/src/main/resources/example)
@@ -20,10 +21,11 @@ Json is used in lenient mode, possible file extensions:
 Some futures from json 5 will not work due to [GSON](https://github.com/google/gson) flaws
 
 ## Meshes & Models
-[Java Block/Item models](https://minecraft.fandom.com/wiki/Model) in the ProPack are called meshes.
-Their files should end with `.mesh.json`
+[Java Block/Item models](https://minecraft.fandom.com/wiki/Model) in the ProPack are called *meshes*.
+Their files should end with `.mesh.json`.
+
+Models configuration file name should end with `.model.json`. 
 
-Models file name should end with `.model.json`. 
 Currently implemented model types:
 
 <br>
@@ -85,9 +87,9 @@ SlotItemModel, example:
 }
 ```
 
-`Target` - this is an indication of the items for which you need to `Auto CustomModelData Mapping` of the specified model
+`Target` - this is an indication of the items for which you need to [Auto CustomModelData](#auto-custommodeldata) of the specified model.
 
-## <a name="autocmd"></a> Auto CustomModelData Mapping
+## Auto CustomModelData
 When building resource pack ProPack takes the default model from the folder `include/assets/minecraft/models/item/<item>.json`
 and adds the necessary elements to override.
 
@@ -106,18 +108,17 @@ Example NBT tag for SlotItemModel: `{CustomModel:"example:models/example_slotmod
 
 ## Sounds
 
-Sound files must ends with `.sound.json`
-- Example: `scream.sound.json`
+Sound files must ends with `.sound.json`, eg. `scream.sound.json`
 
 Sound file paths can be relative, example `../folder/sound`.
 
 FFmpeg auto conversion is supported. Use `-Dpropack.ffmpeg=path` to indicate its location,
 by default it `ffmpeg`
 
-## <a name="armortextures"></a> Armor Textures
+## Armor Textures
 Added an automatic builder of custom textures for leather armor for the [shader `fancyPants`](https://github.com/Ancientkingg/fancyPants)
 
-Armor file must ends with `.armor.json`
+Armor file must ends with `.armor.json`, eg. `emerald.armor.json`
 
 [Example file]():
 ```json
@@ -146,32 +147,36 @@ The second animated version:
   }
 }
 ```
-`.png` is not required to be specified
+`.png` is not required to be specified.
+
 For more information, see [README.md of fancyPants](https://github.com/Ancientkingg/fancyPants/blob/master/README.md)
 
 `SaveImage` allows you to determine whether to save 
 the specified `Image` in the output resource pack
 
 ## Languages
-Language file must ends with `.lang.json`
-- Example: `en_us.lang.json`
+Language file must ends with `.lang.json`, eg. `en_us.lang.json`.
+
+Path in content doesn't matter.
 
-There is also a placeholder `<namespace>`.
 Multiple languages in the same namespace will be merged into one.
 
+There is also a placeholder `<namespace>`.
+
 ## Fonts
 Fonts work unchanged except for the file extension `.font.json`
 
-## <a name="obfuscation"></a> Obfuscation
+## Obfuscation
 It just obfuscates the entire resource pack, except for translations.
 The settings for this function are in [`config/build.json5`](https://github.com/Nelonn/ProPack/blob/master/propack-core/src/main/resources/example/config/build.json5)
 
 ## Planned in the future
+- [ ] Rewrite builder to C++ or Golang as binary executable.
 - [ ] Integration into [ItemsAdder](https://www.spigotmc.org/resources/%E2%9C%A8itemsadder%E2%AD%90emotes-mobs-items-armors-hud-gui-emojis-blocks-wings-hats-liquids.73355/), [Oraxen](https://www.spigotmc.org/resources/%E2%98%84%EF%B8%8F-oraxen-add-items-blocks-armors-hats-food-furnitures-plants-and-gui.72448/), [Model Engine](https://www.spigotmc.org/resources/conxeptworks-model-engine—ultimate-custom-entity-model-manager-1-16-5-1-19-3.79477/), etc.
-- [ ] Fonts generating
-- [ ] CI/CD using [Redis](https://redis.io/), etc.
-- [ ] Improve the quality of the code and API
-- [ ] Mod for [Fabric](https://fabricmc.net/)
+- [ ] Fonts generating.
+- [ ] Resource pack CI/CD using [Redis](https://redis.io/), etc. (for multi server)
+- [ ] Improve the quality of the code and API.
+- [ ] Mod for [Fabric](https://fabricmc.net/).
 
 ## License
 *Click here to read [the entire license](https://github.com/Nelonn/ProPack/blob/master/LICENSE.txt).*
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 2e296a0..fb663fe 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 group=me.nelonn.propack
-version=0.0.7
+version=0.0.8
 
 org.gradle.jvmargs=-Xmx2G
 org.gradle.parallel=true
diff --git a/libs/flint-path-0.0.1.jar b/libs/lib-flint-path-0.0.1.jar
similarity index 76%
rename from libs/flint-path-0.0.1.jar
rename to libs/lib-flint-path-0.0.1.jar
index f43f0c9..5ebb571 100644
Binary files a/libs/flint-path-0.0.1.jar and b/libs/lib-flint-path-0.0.1.jar differ
diff --git a/propack-api/build.gradle.kts b/propack-api/build.gradle.kts
index d61b2e3..6db0184 100644
--- a/propack-api/build.gradle.kts
+++ b/propack-api/build.gradle.kts
@@ -12,7 +12,7 @@ repositories {
 }
 
 dependencies {
-    "compileOnly"(files("../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../libs/lib-flint-path-0.0.1.jar"))
     "compileOnly"("net.kyori:adventure-api:4.12.0")
     "compileOnly"("org.jetbrains:annotations:23.1.0")
 }
diff --git a/propack-bukkit/adapters/adapter-1.17.1/build.gradle.kts b/propack-bukkit/adapters/adapter-1.17.1/build.gradle.kts
index de034a0..f8731e3 100644
--- a/propack-bukkit/adapters/adapter-1.17.1/build.gradle.kts
+++ b/propack-bukkit/adapters/adapter-1.17.1/build.gradle.kts
@@ -11,7 +11,7 @@ java.toolchain.languageVersion.set(JavaLanguageVersion.of(17))
 dependencies {
     // https://papermc.io/repo/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/
     paperDevBundle("1.17.1-R0.1-20220414.034903-210")
-    "compileOnly"(files("../../../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../../../libs/lib-flint-path-0.0.1.jar"))
     "compileOnly"(project(":propack-api"))
     "compileOnly"(project(":propack-core"))
     "compileOnly"(project(":propack-bukkit"))
diff --git a/propack-bukkit/adapters/adapter-1.18.2/build.gradle.kts b/propack-bukkit/adapters/adapter-1.18.2/build.gradle.kts
index 1147ff6..a920785 100644
--- a/propack-bukkit/adapters/adapter-1.18.2/build.gradle.kts
+++ b/propack-bukkit/adapters/adapter-1.18.2/build.gradle.kts
@@ -11,7 +11,7 @@ java.toolchain.languageVersion.set(JavaLanguageVersion.of(17))
 dependencies {
     // https://papermc.io/repo/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/
     paperDevBundle("1.18.2-R0.1-20220304.102823-4")
-    "compileOnly"(files("../../../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../../../libs/lib-flint-path-0.0.1.jar"))
     "compileOnly"(project(":propack-api"))
     "compileOnly"(project(":propack-core"))
     "compileOnly"(project(":propack-bukkit"))
diff --git a/propack-bukkit/adapters/adapter-1.19.3/build.gradle.kts b/propack-bukkit/adapters/adapter-1.19.3/build.gradle.kts
index 2278b22..c65b1e0 100644
--- a/propack-bukkit/adapters/adapter-1.19.3/build.gradle.kts
+++ b/propack-bukkit/adapters/adapter-1.19.3/build.gradle.kts
@@ -11,7 +11,7 @@ java.toolchain.languageVersion.set(JavaLanguageVersion.of(17))
 dependencies {
     // https://papermc.io/repo/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/
     paperDevBundle("1.19.3-R0.1-20221226.180038-55")
-    "compileOnly"(files("../../../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../../../libs/lib-flint-path-0.0.1.jar"))
     "compileOnly"(project(":propack-api"))
     "compileOnly"(project(":propack-core"))
     "compileOnly"(project(":propack-bukkit"))
diff --git a/propack-bukkit/adapters/adapter-1.19.4/build.gradle.kts b/propack-bukkit/adapters/adapter-1.19.4/build.gradle.kts
index 0409584..3bfea74 100644
--- a/propack-bukkit/adapters/adapter-1.19.4/build.gradle.kts
+++ b/propack-bukkit/adapters/adapter-1.19.4/build.gradle.kts
@@ -11,7 +11,7 @@ java.toolchain.languageVersion.set(JavaLanguageVersion.of(17))
 dependencies {
     // https://papermc.io/repo/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/
     paperDevBundle("1.19.4-R0.1-20230315.180636-1")
-    "compileOnly"(files("../../../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../../../libs/lib-flint-path-0.0.1.jar"))
     "compileOnly"(project(":propack-api"))
     "compileOnly"(project(":propack-core"))
     "compileOnly"(project(":propack-bukkit"))
diff --git a/propack-bukkit/adapters/adapter-1.19/build.gradle.kts b/propack-bukkit/adapters/adapter-1.19/build.gradle.kts
index 30ee9db..f4ab445 100644
--- a/propack-bukkit/adapters/adapter-1.19/build.gradle.kts
+++ b/propack-bukkit/adapters/adapter-1.19/build.gradle.kts
@@ -11,7 +11,7 @@ java.toolchain.languageVersion.set(JavaLanguageVersion.of(17))
 dependencies {
     // https://papermc.io/repo/service/rest/repository/browse/maven-public/io/papermc/paper/dev-bundle/
     paperDevBundle("1.19-R0.1-20220609.175204-1")
-    "compileOnly"(files("../../../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../../../libs/lib-flint-path-0.0.1.jar"))
     "compileOnly"(project(":propack-api"))
     "compileOnly"(project(":propack-core"))
     "compileOnly"(project(":propack-bukkit"))
diff --git a/propack-bukkit/build.gradle.kts b/propack-bukkit/build.gradle.kts
index 4ddc3ce..17f4eca 100644
--- a/propack-bukkit/build.gradle.kts
+++ b/propack-bukkit/build.gradle.kts
@@ -37,7 +37,7 @@ dependencies {
     "implementation"(project(":propack-core")) {
         exclude(group = "net.kyori")
     }
-    "compileOnly"(files("../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../libs/lib-flint-path-0.0.1.jar"))
 
     /*"compileOnly"("org.spigotmc:spigot-api:1.17-R0.1-SNAPSHOT") {
         exclude("junit", "junit")
diff --git a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/ProPackPlugin.java b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/ProPackPlugin.java
index 0628267..bb723cf 100644
--- a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/ProPackPlugin.java
+++ b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/ProPackPlugin.java
@@ -35,7 +35,7 @@
 
 public final class ProPackPlugin extends JavaPlugin {
     private static final Logger LOGGER = LogManagerCompat.getLogger();
-    private static final SharedLoader.Library library = new SharedLoader.Library("flint-path-0.0.1.jar", "me.nelonn.flint.path.Path");
+    private static final SharedLoader.Library library = new SharedLoader.Library("lib-flint-path-0.0.1.jar", "me.nelonn.flint.path.Path");
 
     public static ProPackPlugin getInstance() {
         return (ProPackPlugin) Bukkit.getPluginManager().getPlugin("ProPack");
diff --git a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/SharedLoader.java b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/SharedLoader.java
index 52f7f9b..7999b36 100644
--- a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/SharedLoader.java
+++ b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/SharedLoader.java
@@ -25,8 +25,6 @@
 import java.io.File;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.net.URL;
-import java.net.URLClassLoader;
 import java.nio.file.Files;
 
 public final class SharedLoader {
@@ -56,8 +54,8 @@ public void loadIfNotExists(@NotNull Library library) {
                     in.transferTo(out);
                 }
             }
-            URLClassLoader loader = new URLClassLoader(new URL[]{file.toURI().toURL()}, Bukkit.class.getClassLoader());
-            Class.forName(library.getCheckClass(), true, loader);
+            Bukkit.getPluginManager().loadPlugin(file);
+            Class.forName(library.getCheckClass());
         } catch (Exception e) {
             throw new RuntimeException("Unable to load shared library '" + library.getFileName() + "'", e);
         }
diff --git a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/BuildCommand.java b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/BuildCommand.java
index 8085b76..85569d6 100644
--- a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/BuildCommand.java
+++ b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/BuildCommand.java
@@ -24,7 +24,6 @@
 import me.nelonn.propack.bukkit.Util;
 import me.nelonn.propack.bukkit.definition.PackDefinition;
 import me.nelonn.propack.bukkit.definition.ProjectDefinition;
-import me.nelonn.propack.core.builder.InternalProject;
 import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -56,9 +55,8 @@ protected void onCommand(@NotNull CommandSender sender, @NotNull String s, @NotN
         }
         new Thread(() -> {
             try {
-                InternalProject internalProject = (InternalProject) projectDefinition.getProject();
-                internalProject.build();
-                ResourcePack resourcePack = internalProject.getResourcePack().orElseThrow();
+                projectDefinition.build();
+                ResourcePack resourcePack = projectDefinition.getResourcePack().orElseThrow();
                 if (resourcePack.isUploaded()) {
                     for (Player player : Bukkit.getOnlinePlayers()) {
                         Optional<ResourcePack> playerPack = ProPack.getCore().getDispatcher().getAppliedResourcePack(player);
diff --git a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/HelpCommand.java b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/HelpCommand.java
index e74b278..a432399 100644
--- a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/HelpCommand.java
+++ b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/command/HelpCommand.java
@@ -35,5 +35,6 @@ public HelpCommand(@NotNull ProPackPlugin plugin) {
     protected void onCommand(@NotNull CommandSender sender, @NotNull String command, @NotNull String[] args) {
         Util.send(sender, "<white>" + plugin.getDescription().getName() + " <gray>v" + plugin.getDescription().getVersion());
         Util.send(sender, "<gray>/propack build <project>");
+        Util.send(sender, "<gray>/propack reload [config|modules|packs]");
     }
 }
diff --git a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/PackManager.java b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/PackManager.java
index 4b77cf2..a4c84c2 100644
--- a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/PackManager.java
+++ b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/PackManager.java
@@ -20,7 +20,6 @@
 
 import com.google.gson.JsonObject;
 import me.nelonn.propack.core.ProPackCore;
-import me.nelonn.propack.core.builder.InternalProject;
 import me.nelonn.propack.core.loader.ProjectLoader;
 import me.nelonn.propack.core.util.GsonHelper;
 import me.nelonn.propack.core.util.LogManagerCompat;
@@ -65,12 +64,8 @@ public void loadAll() {
                 if (type.equalsIgnoreCase("Project")) {
                     boolean buildAtStartup = GsonHelper.getBoolean(jsonObject, "BuildAtStartup", false);
                     File projectFile = new File(directory, name + File.separatorChar + "project.json5");
-                    InternalProject internalProject = projectLoader.load(projectFile, !buildAtStartup);
-                    if (buildAtStartup || internalProject.getResourcePack().isEmpty()) {
-                        internalProject.build(); // TODO: improve
-                    }
-                    ProjectDefinition resourcePackDefinition = new ProjectDefinition(internalProject);
-                    definitions.put(name, resourcePackDefinition);
+                    ProjectDefinition projectDefinition = new ProjectDefinition(projectFile, projectLoader, !buildAtStartup);
+                    definitions.put(name, projectDefinition);
                 } else if (type.equalsIgnoreCase("File")) {
                     throw new UnsupportedOperationException("Resource pack definition type 'File' currently not supported");
                 }
diff --git a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/ProjectDefinition.java b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/ProjectDefinition.java
index e71b67d..43f15ae 100644
--- a/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/ProjectDefinition.java
+++ b/propack-bukkit/src/main/java/me/nelonn/propack/bukkit/definition/ProjectDefinition.java
@@ -19,16 +19,26 @@
 package me.nelonn.propack.bukkit.definition;
 
 import me.nelonn.propack.ResourcePack;
-import me.nelonn.propack.builder.Project;
+import me.nelonn.propack.core.builder.InternalProject;
+import me.nelonn.propack.core.loader.ProjectLoader;
 import org.jetbrains.annotations.NotNull;
 
+import java.io.File;
 import java.util.Optional;
 
 public class ProjectDefinition implements PackDefinition {
-    private final Project project;
+    private final File file;
+    private InternalProject project;
+    private ProjectLoader projectLoader;
 
-    public ProjectDefinition(@NotNull Project project) {
-        this.project = project;
+    public ProjectDefinition(@NotNull File file, @NotNull ProjectLoader projectLoader, boolean tryLoadBuilt) {
+        this.file = file;
+        this.projectLoader = projectLoader;
+        if (tryLoadBuilt) {
+            loadOrBuild();
+        } else {
+            build();
+        }
     }
 
     @Override
@@ -41,7 +51,35 @@ public ProjectDefinition(@NotNull Project project) {
         return project.getResourcePack();
     }
 
-    public @NotNull Project getProject() {
+    public @NotNull File getFile() {
+        return file;
+    }
+
+    public @NotNull InternalProject getProject() {
         return project;
     }
+
+    public @NotNull ProjectLoader getProjectLoader() {
+        return projectLoader;
+    }
+
+    public void setProjectLoader(@NotNull ProjectLoader projectLoader) {
+        this.projectLoader = projectLoader;
+    }
+
+    public void loadOrBuild() {
+        project = projectLoader.load(file, true);
+        if (project.getResourcePack().isEmpty()) {
+            build0();
+        }
+    }
+
+    public void build() {
+        project = projectLoader.load(file, false);
+        build0();
+    }
+
+    private void build0() {
+        project.build(); // TODO: improve
+    }
 }
diff --git a/propack-bukkit/src/main/resources/flint-path-0.0.1.jar.shared b/propack-bukkit/src/main/resources/lib-flint-path-0.0.1.jar.shared
similarity index 76%
rename from propack-bukkit/src/main/resources/flint-path-0.0.1.jar.shared
rename to propack-bukkit/src/main/resources/lib-flint-path-0.0.1.jar.shared
index f43f0c9..5ebb571 100644
Binary files a/propack-bukkit/src/main/resources/flint-path-0.0.1.jar.shared and b/propack-bukkit/src/main/resources/lib-flint-path-0.0.1.jar.shared differ
diff --git a/propack-cli/build.gradle.kts b/propack-cli/build.gradle.kts
index ab03829..19a3995 100644
--- a/propack-cli/build.gradle.kts
+++ b/propack-cli/build.gradle.kts
@@ -16,7 +16,7 @@ repositories {
 dependencies {
     "implementation"(project(":propack-api"))
     "implementation"(project(":propack-core"))
-    "implementation"(files("../libs/flint-path-0.0.1.jar"))
+    "implementation"(files("../libs/lib-flint-path-0.0.1.jar"))
 
     "implementation"("org.eclipse.jgit:org.eclipse.jgit:6.4.0.202211300538-r")
 
diff --git a/propack-core/build.gradle.kts b/propack-core/build.gradle.kts
index 6e35b5e..4374f58 100644
--- a/propack-core/build.gradle.kts
+++ b/propack-core/build.gradle.kts
@@ -16,7 +16,7 @@ repositories {
 
 dependencies {
     "implementation"(project(":propack-api"))
-    "compileOnly"(files("../libs/flint-path-0.0.1.jar"))
+    "compileOnly"(files("../libs/lib-flint-path-0.0.1.jar"))
 
     "compileOnly"("org.eclipse.jgit:org.eclipse.jgit:6.4.0.202211300538-r")
 
diff --git a/propack-core/src/main/java/me/nelonn/propack/core/loader/ProjectLoader.java b/propack-core/src/main/java/me/nelonn/propack/core/loader/ProjectLoader.java
index 29b5620..4272b04 100644
--- a/propack-core/src/main/java/me/nelonn/propack/core/loader/ProjectLoader.java
+++ b/propack-core/src/main/java/me/nelonn/propack/core/loader/ProjectLoader.java
@@ -81,7 +81,7 @@ public List<TextLoader> getTextLoaders() {
         return textLoaders;
     }
 
-    public @NotNull InternalProject load(@NotNull File projectFile, boolean loadBuilt) {
+    public @NotNull InternalProject load(@NotNull File projectFile, boolean tryLoadBuilt) {
         String name;
         VirtualFile packMeta;
         VirtualFile packIcon;
@@ -287,7 +287,7 @@ public List<TextLoader> getTextLoaders() {
 
         ResourcePack resourcePack = null;
         File builtResourcePack = new File(projectFile.getParentFile(), "build/" + name + ".propack");
-        if (builtResourcePack.exists() && loadBuilt) {
+        if (builtResourcePack.exists() && tryLoadBuilt) {
             try {
                 ResourcePackLoader resourcePackLoader = new ResourcePackLoader();
                 resourcePack = resourcePackLoader.load(builtResourcePack);
diff --git a/propack-core/src/main/java/me/nelonn/propack/module/JavaModuleManager.java b/propack-core/src/main/java/me/nelonn/propack/module/JavaModuleManager.java
index 704b702..9497cf7 100644
--- a/propack-core/src/main/java/me/nelonn/propack/module/JavaModuleManager.java
+++ b/propack-core/src/main/java/me/nelonn/propack/module/JavaModuleManager.java
@@ -19,6 +19,7 @@
 package me.nelonn.propack.module;
 
 import com.google.gson.JsonObject;
+import com.google.gson.JsonParseException;
 import me.nelonn.propack.core.util.GsonHelper;
 import me.nelonn.propack.core.util.LogManagerCompat;
 import org.apache.commons.io.IOUtils;
@@ -27,6 +28,7 @@
 import org.jetbrains.annotations.Nullable;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
@@ -37,6 +39,8 @@
 import java.nio.file.Path;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
 
 public class JavaModuleManager implements ModuleManager {
     private static final Logger LOGGER = LogManagerCompat.getLogger();
@@ -65,31 +69,72 @@ public void loadAll() throws IOException {
         });
         for (Path path : stream) {
             try {
-                URLClassLoader child = new URLClassLoader(new URL[]{path.toUri().toURL()}, getClass().getClassLoader());
-                InputStream inputStream = child.getResourceAsStream("module.json");
-                if (inputStream == null) continue;
-                String moduleDescriptionString = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
-                JsonObject jsonObject = GsonHelper.deserialize(moduleDescriptionString);
-                JsonModuleDescription moduleMeta = JsonModuleDescription.deserialize(jsonObject);
-                try {
-                    Class<?> bootstrapper = Class.forName(moduleMeta.getBootstrapper(), true, child);
-                    if (!ModuleBootstrap.class.isAssignableFrom(bootstrapper)) {
-                        throw new IllegalArgumentException("Bootstrapper class must implement '" + ModuleBootstrap.class.getName() + "'");
-                    }
-                    ModuleBootstrap moduleBootstrap = (ModuleBootstrap) bootstrapper.getDeclaredConstructor().newInstance();
-                    File dataDir = new File(path.getParent().toFile(), moduleMeta.getName());
-                    ModuleProviderContext context = new ModuleProviderContextImpl(moduleMeta, dataDir.toPath());
-                    moduleBootstrap.bootstrap(context);
-                    JavaModule module = moduleBootstrap.createModule(context);
-                    module.enable();
-                    modules.put(moduleMeta.getName(), module);
-                } catch (Exception e) {
-                    LOGGER.error("Error occurred while enabling " + moduleMeta.getDisplayName() + " (Is it up to date?)", e);
-                }
+                loadModule(path.toFile());
             } catch (Exception e) {
                 LOGGER.error("Unable to load module '" + path.getFileName() + "'", e);
             }
         }
+        stream.close();
+    }
+
+    public @NotNull Module loadModule(@NotNull File file) {
+        JsonModuleDescription description;
+        try {
+            description = getModuleDescription(file);
+        } catch (InvalidDescriptionException e) {
+            throw new IllegalArgumentException("Invalid module", e);
+        }
+        File dataFolder = new File(modulesDir, description.getName());
+        try {
+            URLClassLoader child = new URLClassLoader(new URL[]{file.toURI().toURL()}, getClass().getClassLoader());
+            Class<?> bootstrapper = Class.forName(description.getBootstrapper(), true, child);
+            if (!ModuleBootstrap.class.isAssignableFrom(bootstrapper)) {
+                throw new IllegalArgumentException("Bootstrapper class must implement '" + ModuleBootstrap.class.getName() + "'");
+            }
+            ModuleBootstrap moduleBootstrap = (ModuleBootstrap) bootstrapper.getDeclaredConstructor().newInstance();
+            ModuleProviderContext context = new ModuleProviderContextImpl(description, dataFolder.toPath());
+            moduleBootstrap.bootstrap(context);
+            JavaModule module = moduleBootstrap.createModule(context);
+            module.enable();
+            modules.put(description.getName(), module);
+            return module;
+        } catch (Exception e) {
+            throw new IllegalArgumentException("Invalid module", e);
+        }
+    }
+
+    public @NotNull JsonModuleDescription getModuleDescription(@NotNull File file) throws InvalidDescriptionException {
+        JarFile jar = null;
+        InputStream stream = null;
+        try {
+            jar = new JarFile(file);
+            JarEntry entry = jar.getJarEntry("module.json");
+
+            if (entry == null) {
+                throw new InvalidDescriptionException(new FileNotFoundException("Jar does not contain module.json"));
+            }
+
+            stream = jar.getInputStream(entry);
+
+            String moduleDescriptionString = IOUtils.toString(stream, StandardCharsets.UTF_8);
+            JsonObject jsonObject = GsonHelper.deserialize(moduleDescriptionString);
+            return JsonModuleDescription.deserialize(jsonObject);
+        } catch (IOException | JsonParseException ex) {
+            throw new InvalidDescriptionException(ex);
+        } finally {
+            if (jar != null) {
+                try {
+                    jar.close();
+                } catch (IOException ignored) {
+                }
+            }
+            if (stream != null) {
+                try {
+                    stream.close();
+                } catch (IOException ignored) {
+                }
+            }
+        }
     }
 
     @Override