Add cross-release deployment

.github/workflows/rust.yml

@@ -1,16 +1,13 @@
 name: Rust
 
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
+on: [push]
 
 env:
   CARGO_TERM_COLOR: always
 
 jobs:
   build:
+    if: ${{ ! startsWith(github.ref, 'refs/tags/') }}
     runs-on: ubuntu-latest
 
     steps:
@@ -28,3 +25,77 @@ jobs:
       run: cargo test --verbose -p sbnf
     - name: Build CLI
       run: cargo build --verbose -p sbnfc
+
+  deploy-executables:
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ${{ matrix.OS }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - TARGET: x86_64-unknown-linux-gnu
+            OS: ubuntu-latest
+          - TARGET: aarch64-unknown-linux-gnu
+            OS: ubuntu-latest
+          - TARGET: x86_64-apple-darwin
+            OS: macos-latest
+          - TARGET: x86_64-pc-windows-msvc
+            OS: windows-latest
+
+    env:
+      TARGET: ${{ matrix.TARGET }}
+      OS: ${{ matrix.OS }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: Swatinem/rust-cache@v1
+      - name: Install and configure dependencies
+        shell: bash
+        run: |
+          set -e -v -x
+
+          if [[ $ubuntu-latest ]]; then
+            if [[ $TARGET == aarch64-unknown-linux-gnu ]]; then
+              sudo apt-get install -qq crossbuild-essential-arm64
+            fi
+
+            # Some additional configuration for cross-compilation on linux
+            cat >>~/.cargo/config <<EOF
+            [target.aarch64-unknown-linux-gnu]
+            linker = "aarch64-linux-gnu-gcc"
+          EOF
+          fi
+      - name: Install rust target
+        shell: bash
+        run: rustup target add $TARGET
+      - name: Run build
+        shell: bash
+        run: cargo build --release --verbose --target $TARGET
+      - name: Compress
+        shell: bash
+        run: |
+          set -e -v -x
+
+          mkdir artifacts out
+
+          # windows is the only OS using a different convention for executable file name
+          if [[ $OS =~ ^windows.*$ ]]; then
+              EXEC=sbnf.exe
+          else
+              EXEC=sbnf
+          fi
+
+          if [[ $GITHUB_REF_TYPE =~ ^tag$ ]]; then
+            TAG=$GITHUB_REF_NAME
+          else
+            TAG=$GITHUB_SHA
+          fi
+
+          mv ./target/$TARGET/release/$EXEC ./out/$EXEC
+          tar -cJf ./artifacts/sbnf-compiler-$TARGET-$TAG.tar.xz -C ./out $EXEC
+      - name: Archive artifact
+        uses: softprops/action-gh-release@v1
+        with:
+          files: './artifacts/*'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}