Add release workflow for ARM and x86 builds

.github/workflows/release.yml

@@ -0,0 +1,100 @@
+name: Release Build
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            goos: linux
+            goarch: amd64
+          - os: ubuntu-latest
+            goos: linux
+            goarch: arm64
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Build
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+        run: |
+          go build -o duckgres-${{ matrix.goos }}-${{ matrix.goarch }} .
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: duckgres-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: duckgres-${{ matrix.goos }}-${{ matrix.goarch }}
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+
+      - name: Get short SHA
+        id: sha
+        run: echo "short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: build-${{ steps.sha.outputs.short }}
+          name: Build ${{ steps.sha.outputs.short }}
+          body: |
+            Automated build from commit ${{ github.sha }}
+          files: |
+            artifacts/duckgres-linux-amd64/duckgres-linux-amd64
+            artifacts/duckgres-linux-arm64/duckgres-linux-arm64
+
+      - name: Delete existing latest release
+        run: gh release delete latest --yes || true
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Update latest tag
+        run: |
+          git tag -f latest
+          git push -f origin latest
+
+      - name: Create latest release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: latest
+          name: Latest Build
+          body: |
+            Latest build from commit ${{ github.sha }}
+
+            For a stable URL, use:
+            ```
+            https://github.com/PostHog/duckgres/releases/latest/download/duckgres-linux-amd64
+            https://github.com/PostHog/duckgres/releases/latest/download/duckgres-linux-arm64
+            ```
+          files: |
+            artifacts/duckgres-linux-amd64/duckgres-linux-amd64
+            artifacts/duckgres-linux-arm64/duckgres-linux-arm64