Add relase workflow

Author: Shweit

.github/workflows/release.yml

@@ -0,0 +1,79 @@
+name: Release to CurseForge and Modrinth
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build-and-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+          cache: 'maven'
+
+      - name: Extract branch name and determine Minecraft version
+        id: extract_branch
+        run: |
+          BRANCH_NAME=${GITHUB_REF_NAME}
+          echo "Branch name: $BRANCH_NAME"
+          
+          # Extract Minecraft version from branch name (e.g., 1.19.x -> 1.19)
+          if [[ $BRANCH_NAME =~ ([0-9]+\.[0-9]+)\.x ]]; then
+            MC_VERSION=${BASH_REMATCH[1]}
+            echo "Detected Minecraft version: $MC_VERSION"
+            echo "mc_version=$MC_VERSION" >> $GITHUB_OUTPUT
+            
+            # Create a list of compatible game versions based on the branch
+            if [[ $MC_VERSION == "1.19" ]]; then
+              echo "game_versions=1.19,1.19.1,1.19.2,1.19.3,1.19.4" >> $GITHUB_OUTPUT
+            elif [[ $MC_VERSION == "1.20" ]]; then
+              echo "game_versions=1.20,1.20.1,1.20.2,1.20.3,1.20.4" >> $GITHUB_OUTPUT
+            elif [[ $MC_VERSION == "1.21" ]]; then
+              echo "game_versions=1.21,1.21.1" >> $GITHUB_OUTPUT
+            elif [[ $MC_VERSION == "1.18" ]]; then
+              echo "game_versions=1.18,1.18.1,1.18.2" >> $GITHUB_OUTPUT
+            else
+              echo "game_versions=$MC_VERSION" >> $GITHUB_OUTPUT
+            fi
+          else
+            echo "Could not determine Minecraft version from branch name: $BRANCH_NAME"
+            exit 1
+          fi
+
+      - name: Build with Maven
+        run: mvn clean package -DskipTests
+
+      - name: Get artifact info
+        id: artifact
+        run: |
+          echo "jar_path=$(find target/ -name 'MinecraftServerAPI-*.jar' | head -n 1)" >> $GITHUB_OUTPUT
+          echo "version=${GITHUB_REF_NAME#v}" >> $GITHUB_OUTPUT
+
+      - name: Upload to Modrinth & Curseforge
+        uses: Kir-Antipov/mc-publish@v3.3
+        with:
+          modrinth-id: H4i6sdRk
+          modrinth-token: ${{ secrets.MODRINTH_TOKEN }}
+
+          curseforge-id: 1101540
+          curseforge-token: ${{ secrets.CURSEFORGE_TOKEN }}
+
+          files: ${{ steps.artifact.outputs.jar_path }}
+
+          name: MinecraftServerAPI ${GITHUB_REF_NAME}
+          version: ${GITHUB_REF_NAME}-${{ steps.artifact.outputs.version }}
+          version-type: release
+          game-versions: ${{ steps.extract_branch.outputs.game_versions }}
+          loaders: |
+            paper
+            spigot
+            bukkit
+          changelog: |
+            See [GitHub Release](${{ github.event.release.html_url }}) for changelog.