Use Gradle based build system

.github/workflows/gradle.yml

@@ -0,0 +1,42 @@
+name: Java CI with Gradle (main - snaphot)
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+    - name: Set up JDK 8
+      id: setup_jdk_8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 8
+#    - name: Install advancecomp and strip-nondeterminism
+#      run: sudo apt-get install advancecomp strip-nondeterminism -y
+    - name: Build with Gradle
+      uses: eskatos/gradle-command-action@v1
+      with:
+        gradle-version: wrapper
+        wrapper-cache-enabled: true
+        dependencies-cache-enabled: true
+        configuration-cache-enabled: true
+        arguments: build
+#    - name: Run strip-nondeterminism on built .jar files
+#      run: strip-nondeterminism build/libs/*.jar
+#    - name: Run advzip (-i 99) on built .jar files
+#      run: advzip --shrink-insane -kzi 99 -p build/libs/*.jar
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v2
+      with:
+        name: SnapshotPackage
+        path: build/libs

.gitignore

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+# general
+*.class
+*.log
+*.ctxt
+.mtj.tmp/
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+hs_err_pid*
+
+# legacy eclipse ignores of dubious use
+/target/
+/bin/
+.classpath
+.project
+.metadata/
+.settings/
+src/.classpath
+src/.project
+src/.settings/
+
+# gradle
+build
+.gradle
+
+# mac os
+.DS_Store

README.md

@@ -1,4 +1,4 @@
 # PigSpawnerFinder
 Finds seeds with pig spawners
 
-if you want to run this you also need KaptainWutax's BiomesUtils, SeedUtils and MathUtils libraries
+To use, first build the project with Gradle, and then run the built .jar file PigSpawnerFinder-all.jar in ./build/libs.

build.gradle

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+plugins {
+    id 'application'
+    id 'com.github.johnrengelman.shadow' version '6.1.0'
+}
+
+// Reproducible builds
+tasks.withType(AbstractArchiveTask) {
+    preserveFileTimestamps = false
+    reproducibleFileOrder = true
+}
+
+apply plugin: 'java'
+
+// Defines a Java 8 compatible JDK.
+def compiler = javaToolchains.compilerFor {
+    languageVersion = JavaLanguageVersion.of(8)
+}
+
+// Tells Gradle to use the previously defined Java 8 compatible JDK.
+java {
+    toolchain {
+        compiler
+    }
+}
+
+// Tells Gradle to always compile with the previously defined Java 8 compatible JDK.
+tasks.withType(JavaCompile).configureEach {
+    javaCompiler = compiler
+}
+
+tasks.withType(JavaCompile) {
+    // Ensures that the encoding of source files is set to UTF-8, see http://yodaconditions.net/blog/fix-for-java-file-encoding-problems-with-gradle.html
+    options.encoding = "UTF-8"
+}
+
+repositories {
+    mavenCentral()
+    maven { url 'https://jitpack.io' }
+}
+
+dependencies {
+    implementation ('com.github.KaptainWutax:BiomeUtils:-SNAPSHOT'){
+        transitive = false
+    }
+    implementation ('com.github.KaptainWutax:SeedUtils:-SNAPSHOT'){
+        transitive = false
+    }
+    implementation ('com.github.KaptainWutax:MathUtils:-SNAPSHOT'){
+        transitive = false
+    }
+    implementation("com.google.guava:guava:30.1-jre")
+}
+
+// Package dependencies with Shadow plugin
+shadowJar {
+    minimize()
+    mainClassName = 'randomreverser.PigSpawnerFinder' 
+}
+
+application {
+    mainClass = 'randomreverser.PigSpawnerFinder' 
+}
+
+jar {
+    manifest {
+        attributes (
+            'Main-Class': 'randomreverser.PigSpawnerFinder'
+        )
+    }
+}

gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists