Add gradle wrapper and support GitHub workflow (#4)

Author: ConnorLinfoot

.github/workflows/build.yml

@@ -0,0 +1,29 @@
+name: build
+on: [ pull_request, push ]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        java: [ 21 ]
+    runs-on: ubuntu-22.04
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v4
+      - name: validate gradle wrapper
+        uses: gradle/wrapper-validation-action@v2
+      - name: setup jdk ${{ matrix.java }}
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'microsoft'
+      - name: make gradle wrapper executable
+        run: chmod +x ./gradlew
+      - name: build
+        run: ./gradlew build
+      - name: capture build artifacts
+        if: ${{ matrix.java == '21' }} # Only upload artifacts built from latest java
+        uses: actions/upload-artifact@v4
+        with:
+          name: Artifacts
+          path: build/libs/

gradle/wrapper/gradle-wrapper.jar

@@ -1 +1,7 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists