Add release workflow

.github/workflows/release.yml

@@ -0,0 +1,59 @@
+name: Release
+on:
+  push:
+    tags:
+    - "v[0-9]+.[0-9]+.[0-9]+"
+jobs:
+  deploy:
+    # A strategy is used to define various build environments this job will run.
+    #
+    # To say it simple, this will create 3 separate independent jobs which will
+    # run on ubuntu, mac & windows.
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+      - name: Build
+        run: cargo build --release
+
+      - name: Build for Mac
+        if: matrix.os == 'macos-latest'
+        run: |
+          strip target/release/rhack
+          mkdir -p release
+          tar -C ./target/release/ -czvf ./release/rhack-mac.tar.gz ./rhack
+
+      - name: Build for Linux
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          cargo install cargo-deb
+          cargo deb
+          strip target/release/rhack
+          mkdir -p release
+          mv target/debian/*.deb ./release/rhack-linux.deb
+          tar -C ./target/release/ -czvf ./release/rhack-linux.tar.gz ./rhack
+
+      - name: Build for Windows
+        if: matrix.os == 'windows-latest'
+        run: |
+          mkdir -p release
+          tar -C ./target/release/ -czvf ./release/rhack-win.tar.gz ./rhack.exe
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          files: |
+            ./release/*.tar.gz
+            ./release/*.zip
+            ./release/*.deb
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}