Refactor Project to Gradle (#3720)

Gradle is better than Maven, don't @ me. okay but actually it's [faster](https://www.youtube.com/watch?v=atuFSv2bLa8&feature=youtu.be&t=77), compiles and tests in parallel more efficiently, and more epic stuff).

.checkstyle/checkstyle.xml

@@ -24,7 +24,7 @@
 
     <!-- https://checkstyle.org/config_filters.html#SuppressionFilter -->
     <module name="SuppressionFilter">
-        <property name="file" value="${checkstyle.suppressions.file}"/>
+        <property name="file" value="${configDirectory}/suppressions.xml"/>
     </module>
 
     <!-- https://checkstyle.org/config_filters.html#SuppressWithPlainTextCommentFilter -->

.github/workflows/build.yml

@@ -2,37 +2,47 @@ name: Build EssentialsX
 
 on:
   push:
-    branches: 
+    branches:
     - 2.x
     - mc/*
   pull_request:
-    branches: 
+    branches:
     - 2.x
 
 jobs:
   build:
-
+    name: Build and upload
     runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Git repo
-      uses: actions/checkout@v1
-    - name: Restore Maven cache
-      uses: actions/cache@v1
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Restore Gradle cache
+      uses: actions/cache@v2
       with:
-        path: ~/.m2/repository
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        path: ~/.gradle/caches
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
         restore-keys: |
-          ${{ runner.os }}-maven-
+          ${{ runner.os }}-gradle-
     - name: Set up JDK 1.8
       uses: actions/setup-java@v1
       with:
         java-version: 1.8
-    - name: Build with Maven
-      run: mvn package verify --file pom.xml
-    - name: Copy artifacts
-      run: mkdir -p ./out/ && cp -t ./out/ **/target/Essentials*.jar
-    - uses: actions/upload-artifact@master
+    - name: Build with Gradle
+      run: |
+        chmod +x gradlew
+        ./gradlew build --stacktrace
+    - name: Deploy with Gradle
+      if: ${{ success() && github.event_name == 'push' && github.repository == 'EssentialsX/Essentials' && github.ref == 'refs/head/2.x' }}
+      env:
+        ORG_GRADLE_PROJECT_essxUsername: ${{ secrets.ESSENTIALSX_DEPLOY_USERNAME }}
+        ORG_GRADLE_PROJECT_essxPassword: ${{ secrets.ESSENTIALSX_DEPLOY_PASSWORD }}
+      run: |
+        ./gradlew publish
+    - name: Upload Artifacts
+      uses: actions/upload-artifact@master
       with:
-        name: Plugin jars
-        path: out/
+        name: EssentialsX plugin jars
+        path: jars/

.gitignore

@@ -17,6 +17,9 @@
 /Essentials/usermap.csv
 
 # Build files
-target/
+.gradle/
 jars/
 out/
+build/
+target/
+*.class

.idea/checkstyle-idea.xml

@@ -16,4 +16,4 @@
       </map>
     </option>
   </component>
-</project>
+</project>

Essentials/build.gradle

@@ -0,0 +1,29 @@
+dependencies {
+    compileOnly('com.github.milkbowl:VaultAPI:1.7') {
+        exclude group: "org.bukkit", module: "bukkit"
+    }
+    compileOnly 'net.luckperms:api:5.0'
+
+    api 'io.papermc:paperlib:1.0.6-SNAPSHOT'
+
+    // Providers
+    api project(':providers:BaseProviders')
+    api project(':providers:PaperProvider')
+    api(project(':providers:NMSReflectionProvider')) {
+        exclude group: "org.bukkit", module: "bukkit"
+    }
+    api(project(':providers:1_8Provider')) {
+        exclude group: "org.bukkit", module: "bukkit"
+    }
+}
+
+shadowJar {
+    dependencies {
+        include (dependency('io.papermc:paperlib'))
+        include (project(':providers:BaseProviders'))
+        include (project(':providers:PaperProvider'))
+        include (project(':providers:NMSReflectionProvider'))
+        include (project(':providers:1_8Provider'))
+    }
+    relocate 'io.papermc.lib', 'com.earth2me.essentials.paperlib'
+}

Essentials/pom.xml

@@ -1,118 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <parent>
-        <groupId>net.ess3</groupId>
-        <artifactId>EssentialsXParent</artifactId>
-        <version>2.18.2</version>
-    </parent>
-
-    <artifactId>EssentialsX</artifactId>
-
-    <build>
-        <finalName>EssentialsX-${full.version}</finalName>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.8.0</version>
-                <configuration>
-                    <showDeprecation>false</showDeprecation>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>3.2.1</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <createDependencyReducedPom>false</createDependencyReducedPom>
-                    <relocations>
-                        <relocation>
-                            <pattern>io.papermc.lib</pattern>
-                            <shadedPattern>com.earth2me.essentials.paperlib</shadedPattern>
-                        </relocation>
-                    </relocations>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
-    <dependencies>
-        <dependency>
-            <groupId>com.github.milkbowl</groupId>
-            <artifactId>VaultAPI</artifactId>
-            <version>1.7</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.bukkit</groupId>
-                    <artifactId>bukkit</artifactId>
-                </exclusion>
-            </exclusions>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.luckperms</groupId>
-            <artifactId>api</artifactId>
-            <version>5.0</version>
-            <scope>provided</scope>
-        </dependency>
-        <dependency>
-            <groupId>io.papermc</groupId>
-            <artifactId>paperlib</artifactId>
-            <version>1.0.6-SNAPSHOT</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.ess3</groupId>
-            <artifactId>BaseProviders</artifactId>
-            <version>2.18.2</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.ess3</groupId>
-            <artifactId>NMSReflectionProvider</artifactId>
-            <version>2.18.2</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.bukkit</groupId>
-                    <artifactId>bukkit</artifactId>
-                </exclusion>
-            </exclusions>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.ess3</groupId>
-            <artifactId>PaperProvider</artifactId>
-            <version>2.18.2</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>com.destroystokyo.paper</groupId>
-                    <artifactId>paper-api</artifactId>
-                </exclusion>
-            </exclusions>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.ess3</groupId>
-            <artifactId>1_8Provider</artifactId>
-            <version>2.18.2</version>
-            <exclusions>
-                <exclusion>
-                    <groupId>org.bukkit</groupId>
-                    <artifactId>bukkit</artifactId>
-                </exclusion>
-            </exclusions>
-            <scope>compile</scope>
-        </dependency>
-    </dependencies>
-</project>

Essentials/src/main/java/com/earth2me/essentials/AlternativeCommandsHandler.java

@@ -1,6 +1,5 @@
 package com.earth2me.essentials;
 
-import net.ess3.api.IEssentials;
 import org.bukkit.command.Command;
 import org.bukkit.command.PluginCommand;
 import org.bukkit.command.PluginCommandYamlParser;

Essentials/src/main/java/com/earth2me/essentials/AsyncTeleport.java

@@ -134,6 +134,13 @@ public class AsyncTeleport implements IAsyncTeleport {
         });
     }
 
+    @Override
+    public void nowUnsafe(Location loc, TeleportCause cause, CompletableFuture<Boolean> future) {
+        final CompletableFuture<Boolean> paperFuture = PaperLib.teleportAsync(teleportOwner.getBase(), loc, cause);
+        paperFuture.thenAccept(future::complete);
+        paperFuture.exceptionally(future::completeExceptionally);
+    }
+
     private void runOnMain(final Runnable runnable) throws ExecutionException, InterruptedException {
         if (Bukkit.isPrimaryThread()) {
             runnable.run();

Essentials/src/main/java/com/earth2me/essentials/PlayerList.java

@@ -40,7 +40,7 @@ public final class PlayerList {
             if (ess.getSettings().realNamesOnList() && !ChatColor.stripColor(user.getDisplayName()).equals(user.getName())) {
                 groupString.append(" (").append(user.getName()).append(")");
             }
-            groupString.append("\u00a7f");
+            groupString.append(ChatColor.WHITE.toString());
         }
         return groupString.toString();
     }

Essentials/src/main/java/com/earth2me/essentials/api/IAsyncTeleport.java

@@ -34,6 +34,15 @@ public interface IAsyncTeleport {
      */
     void now(Player entity, boolean cooldown, PlayerTeleportEvent.TeleportCause cause, CompletableFuture<Boolean> future);
 
+    /**
+     * Used to skip all safety checks while teleporting a player asynchronously.
+     *
+     * @param loc    - Where should the player end up
+     * @param cause  - The reported teleportPlayer cause
+     * @param future - Future which is completed with the success status of the execution
+     */
+    void nowUnsafe(Location loc, PlayerTeleportEvent.TeleportCause cause, CompletableFuture<Boolean> future);
+
     /**
      * Teleport a player to a specific location
      *

Essentials/src/main/java/com/earth2me/essentials/api/IWarps.java

@@ -44,7 +44,7 @@ public interface IWarps extends IConf {
      * Delete a warp from the warp DB
      *
      * @param name - Name of warp
-     * @throws Exception
+     * @throws Exception If the warp could not be removed
      */
     void removeWarp(String name) throws Exception;
 
@@ -53,7 +53,7 @@ public interface IWarps extends IConf {
      *
      * @param name - Name of warp
      * @param loc  - Location of warp
-     * @throws Exception
+     * @throws Exception If the warp could not be set
      */
     void setWarp(String name, Location loc) throws Exception;
 
@@ -63,7 +63,7 @@ public interface IWarps extends IConf {
      * @param user - User of warp
      * @param name - Name of warp
      * @param loc  - Location of warp
-     * @throws Exception
+     * @throws Exception If the warp could not be set
      */
     void setWarp(IUser user, String name, Location loc) throws Exception;
 
@@ -71,14 +71,14 @@ public interface IWarps extends IConf {
      * Gets Lastowner UUID
      *
      * @param warp - Name of warp
-     * @throws WarpNotFoundException
+     * @throws WarpNotFoundException If the warp is not found
      */
     UUID getLastOwner(String warp) throws WarpNotFoundException;
 
     /**
      * Check to see if the file is empty
      *
-     * @return
+     * @return Whether or not the file is empty
      */
     boolean isEmpty();