Set up github actions

Author: castorflex

.github/workflows/build.yml

@@ -0,0 +1,15 @@
+name: Build
+on: [push, pull_request]
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@v2
+      - name: Set up JDK 15
+        uses: actions/setup-java@v2
+        with:
+          java-version: '15'
+          distribution: 'adopt'
+      - name: Build
+        run: "./gradlew build check"

.github/workflows/publish.yml

@@ -0,0 +1,35 @@
+name: Publish
+on:
+  push:
+    branches:
+      - master
+      - dev
+jobs:
+  Publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@v2
+      - name: Set up JDK 15
+        uses: actions/setup-java@v2
+        with:
+          java-version: '15'
+          distribution: 'adopt'
+
+      - name: Prepare environment
+        env:
+          GPG_KEY_CONTENTS: ${{ secrets.GPG_KEY_CONTENTS }}
+          SIGNING_KEY_RING_FILE: ${{ secrets.SIGNING_KEY_RING_FILE }}
+        run: |
+          git fetch --unshallow
+          sudo bash -c "echo '$GPG_KEY_CONTENTS' | base64 -d > 'SIGNING_KEY_RING_FILE'"
+      - name: Build
+        run: "./gradlew build check"
+      - name: Publish
+        run: "./gradlew publish"
+        env:
+          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.NEXUS_USERNAME }}
+          ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.NEXUS_PASSWORD }}
+          ORG_GRADLE_PROJECT_signingInMemoryKeyId: ${{ secrets.SIGNING_KEY_ID }}
+          ORG_GRADLE_PROJECT_signingInMemoryPassword: ${{ secrets.SIGNING_KEY_PASSWORD }}
+          ORG_GRADLE_PROJECT_signingInMemoryKey: ${{ secrets.SIGNING_KEY_RING_FILE }}