Add workflow.

Author: schmidt73

.github/workflows/build.yml

@@ -0,0 +1,59 @@
+name: Build and Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+jobs:
+  build:
+    name: Build on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04, macos-11]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+
+      - name: Build
+        run: |
+          mkdir build
+          cd build
+          cmake ..
+          make
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: fastbe-${{ matrix.os }}
+          path: build/src/fastbe
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download Artifacts
+        uses: actions/download-artifact@v3
+        with:
+          path: artifacts
+
+      - name: Display structure
+        run: ls -R
+        working-directory: artifacts/
+
+      - name: Prepare artifacts
+        run: |
+          mv artifacts/fastbe-ubuntu-20.04/fastbe artifacts/fastbe-ubuntu
+          mv artifacts/fastbe-macos-11/fastbe artifacts/fastbe-macos
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            artifacts/fastbe-ubuntu
+            artifacts/fastbe-macos
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}