Move to unified build script

.github/scripts/update-version.sh

@@ -0,0 +1,10 @@
+if [ ! -z $(git diff --name-only HEAD HEAD~1 | grep build.gradle) ]; then
+  new_version="$(git log -n1 --format=format:"%H")"
+  sed --in-place "s!^//version:.*!//version: $new_version!g" build.gradle
+  git add build.gradle
+  git commit -m "[ci skip] update build script version to $new_version"
+  git push
+  echo "Updated buildscript version to $new_version"; 
+else
+  echo "Ignored buildscript version update: no changes detected"
+fi

.github/workflows/buildscript-maintenance.yml

@@ -0,0 +1,24 @@
+# This workflow only meant for the source mod you shouldn't bring it into your own project
+
+name: Buildscript maintenance
+
+on:
+  push:
+    branches: [ master, main ]
+
+jobs:
+  buildscript-maintenance:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 2
+
+      - name: setup git config
+        run: |
+          git config user.name "GitHub CI Bot"
+          git config user.email "<>"
+
+      - name: Ensure build script version is up to date
+        run: .github/scripts/update-version.sh

.github/workflows/package-release.yml

@@ -0,0 +1,71 @@
+# This workflow only meant for the source mod you shouldn't bring it into your own project
+
+name: Release packages
+
+on:
+  push:
+    branches: [ master, main ]
+
+jobs:
+  zip-packages:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Zip starter
+        uses: montudor/action-zip@v1
+        with:
+          args: >
+            zip -r starter.zip . \
+                \
+                -x "*.git/*" \
+                \
+                -x ".github/scripts/update-version.sh" \
+                -x ".github/workflows/buildscript-maintenance.yml" \
+                -x ".github/workflows/package-release.yml" \
+                \
+                -x "*docs/*" \
+                -x "README.md" \
+                -x "LICENSE" \
+                \
+                -x "starter.zip" \
+                -x "migration.zip"
+
+      - name: Publish starter package
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: "latest-stater"
+          prerelease: true
+          title: "Latest starter package"
+          files: "starter.zip"
+
+      - name: Zip migration
+        uses: montudor/action-zip@v1
+        with:
+          args: >
+            zip -r migration.zip . \
+                \
+                -x "*.git/*" \
+                \
+                -x ".github/scripts/update-version.sh" \
+                -x ".github/workflows/buildscript-maintenance.yml" \
+                -x ".github/workflows/package-release.yml" \
+                \
+                -x "*docs/*" \
+                -x "*src/*" \
+                -x "LICENSE" \
+                -x "README.md" \
+                \
+                -x "starter.zip" \
+                -x "migration.zip"
+            
+      - name: Publish migration package
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: "latest-migration"
+          prerelease: true
+          title: "Latest migration package"
+          files: "migration.zip"

.github/workflows/pull-request.yml

@@ -0,0 +1,32 @@
+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Build pull request
+
+on:
+  pull_request:
+    branches: [ master, main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with: 
+        fetch-depth: 0
+    
+    - name: Set up JDK 8
+      uses: actions/setup-java@v2
+      with:
+        java-version: '8'
+        distribution: 'adopt'
+        cache: gradle
+        
+    - name: Grant execute permission for gradlew
+      run: chmod +x gradlew
+
+    - name: Setup the workspace
+      run: ./gradlew setupCIWorkspace
+    
+    - name: Build the mod
+      run: ./gradlew build

.github/workflows/release.yml

@@ -0,0 +1,41 @@
+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Build and release main branch
+
+on:
+  push:
+    branches: [ master, main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with: 
+        fetch-depth: 0
+    
+    - name: Set up JDK 8
+      uses: actions/setup-java@v2
+      with:
+        java-version: '8'
+        distribution: 'adopt'
+        cache: gradle
+        
+    - name: Grant execute permission for gradlew
+      run: chmod +x gradlew
+
+    - name: Setup the workspace
+      run: ./gradlew setupCIWorkspace
+    
+    - name: Build the mod
+      run: ./gradlew build
+        
+    - uses: "marvinpinto/action-automatic-releases@latest"
+      with:
+        repo_token: "${{ secrets.GITHUB_TOKEN }}"
+        automatic_release_tag: "latest"
+        prerelease: true
+        title: "Latest Development Build"
+        files: build/libs/*.jar
+