gradle: check operating system

README.MD

@@ -7,11 +7,11 @@
 ## Run Client
 
 ```shell
-gradle client:run
+gradle :client:copyNatives :client:run
 ```
 
 ## Run Server
 
 ```shell
-gradle client:run
+gradle :server:run
 ```

client/build.gradle

@@ -1,3 +1,5 @@
+import org.gradle.nativeplatform.platform.internal.DefaultNativePlatform
+
 plugins {
     id 'java'
     id 'application'
@@ -5,6 +7,7 @@ plugins {
 
 group = 'minecraft'
 version = '1.12.2'
+OperatingSystem os = DefaultNativePlatform.currentOperatingSystem
 
 compileJava {
     sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
@@ -21,7 +24,7 @@ run {
         workingDir.mkdir()
     }
 
-    systemProperty 'java.library.path', file("$buildDir/natives/windows")
+    systemProperty 'java.library.path', file("$buildDir/natives")
     args '--version', '1.12.2', '--accessToken', '0', '--assetsDir', 'assets', '--assetIndex', "1.12.2", '--userProperties', '{}'
 }
 
@@ -35,7 +38,6 @@ dependencies {
     implementation name: 'com/mojang/authlib/1.5.25/authlib-1.5.25'
     implementation name: 'com/mojang/text2speech/1.10.3/text2speech-1.10.3'
     implementation name: 'com/mojang/realms/1.10.21/realms-1.10.21'
-    implementation name: 'com/mojang/text2speech/1.10.3/text2speech-1.10.3-natives-windows'
     implementation name: 'com/paulscode/codecjorbis/20101023/codecjorbis-20101023'
     implementation name: 'com/paulscode/codecwav/20101023/codecwav-20101023'
     implementation name: 'com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123'
@@ -44,9 +46,16 @@ dependencies {
     implementation name: 'oshi-project/oshi-core/1.1/oshi-core-1.1'
     implementation name: 'org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209'
     implementation name: 'org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209'
-    implementation name: 'org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-windows'
     implementation name: 'com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2'
 
+    if (os.isWindows()) {
+        implementation name: 'com/mojang/text2speech/1.10.3/text2speech-1.10.3-natives-windows'
+        implementation name: 'org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-windows'
+    } else {
+        implementation name: 'com/mojang/text2speech/1.10.3/text2speech-1.10.3-natives-linux'
+        implementation name: 'org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-linux'
+    }
+
     implementation 'net.java.dev.jna:jna:4.4.0'
     implementation 'net.java.jinput:jinput:2.0.5'
     implementation 'net.java.jinput:jinput-platform:2.0.5'
@@ -63,13 +72,23 @@ dependencies {
     implementation 'commons-codec:commons-codec:1.10'
 }
 
-task copyNativesWindows {
+tasks.register('copyNatives').configure {
     doLast {
+        def classifier
+        def suffix
+        if (os.isWindows()) {
+            classifier = 'natives-windows'
+            suffix = '-natives-windows'
+        } else {
+            classifier = 'natives-linux'
+            suffix = '-natives-linux'
+        }
+
         copy {
-            def resolvedArtifacts = configurations.compile.resolvedConfiguration.resolvedArtifacts
-            def matches = resolvedArtifacts.findAll {it.classifier == 'natives-windows' || it.name.endsWith('-natives-windows')}
-            from matches.collect { it.file }.collect { zipTree(it) }
-            into "$buildDir/natives/windows"
+            def resolvedArtifacts = configurations.runtimeClasspath.resolvedConfiguration.resolvedArtifacts
+            def matches = resolvedArtifacts.findAll {it.classifier == classifier || it.name.endsWith(suffix)}
+            from matches.collect { it.file }.collect { zipTree(it).matching { exclude 'META-INF/**' } }
+            into "$buildDir/natives"
         }
     }
 }