Add release capability (#3)

.github/workflows/release.yml

@@ -0,0 +1,40 @@
+name: build-and-sign
+
+on:
+  release:
+
+jobs:
+  release:
+    runs-on: windows-latest
+    defaults:
+     run:
+       shell: bash
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Go
+        uses: actions/setup-go@v2
+      - name: Install osslsigncode
+        run: |
+          echo "$PWD/.local/bin" >> $GITHUB_PATH
+          echo $GITHUB_PATH
+          set -eu
+          mkdir -p .local/bin && cd .local/bin
+          curl -sSL https://github.com/mtrojnar/osslsigncode/releases/download/2.1/osslsigncode_2.1_windows.zip -o osslsigncode.zip
+          ls -l osslsigncode.zip
+          unzip -j osslsigncode.zip
+          ./osslsigncode --version || true
+
+      - name: Build
+        run: make windows_amd64_signed
+
+      - name: Test
+        run: make test
+
+      - name: Upload binaries to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: .gotmp/bin/windows_amd64/sudo*.exe
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true