Add github actions

.github/workflows/actions.yml

@@ -0,0 +1,58 @@
+name: build
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_MIN_STACK: 16777212
+
+permissions: {}
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+        include:
+          - platform: ubuntu-latest
+            artifact-path: target/release/bp
+            artifact-platform-name: linux-x86_64-gnu
+            env-command: ">> $GITHUB_ENV"
+          - platform: macos-latest
+            artifact-path: target/release/bp
+            artifact-platform-name: macos-x86_64
+            env-command: ">> $GITHUB_ENV"
+          - platform: windows-latest
+            artifact-path: target/release/bp.exe
+            artifact-platform-name: windows-x86_64
+            env-command: "| Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append"
+    runs-on: ${{ matrix.platform }}
+    timeout-minutes: 10
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Update Rust
+        run: rustup update
+
+      - name: rustfmt
+        if: ${{ matrix.platform == 'ubuntu-latest' }}
+        run: |
+          cargo fmt -- --check
+      
+      - name: Build
+        run: |
+          cargo build --release
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: bp-${{ matrix.artifact-platform-name }}
+          path: ${{ matrix.artifact-path }}
+          if-no-files-found: error