feat: build and upload deb package in release workflow

.gitea/workflows/release.yml

@@ -83,7 +83,11 @@ jobs:
 
       - name: Derive version from tag
         id: version
-        run: echo "tag=${GITHUB_REF_NAME}" >> "$GITHUB_OUTPUT"
+        run: |
+          tag="${GITHUB_REF_NAME}"
+          deb_version="${tag#v}"
+          echo "tag=${tag}" >> "$GITHUB_OUTPUT"
+          echo "deb_version=${deb_version}" >> "$GITHUB_OUTPUT"
 
       - name: Build standalone binary with Nuitka
         run: |
@@ -100,6 +104,33 @@ jobs:
       - name: Smoke-test the binary
         run: dist/tai --help
 
+      - name: Build .deb package
+        run: |
+          pkg_root="pkgroot"
+          pkg_name="tai"
+          deb_version="${{ steps.version.outputs.deb_version }}"
+          arch="amd64"
+          out_dir="dist"
+          deb_dir="${pkg_root}/${pkg_name}_${deb_version}_${arch}"
+
+          rm -rf "${pkg_root}"
+          mkdir -p "${deb_dir}/DEBIAN"
+          mkdir -p "${deb_dir}/usr/bin"
+
+          install -m 0755 dist/tai "${deb_dir}/usr/bin/tai"
+
+          cat > "${deb_dir}/DEBIAN/control" <<EOF
+          Package: ${pkg_name}
+          Version: ${deb_version}
+          Section: admin
+          Priority: optional
+          Architecture: ${arch}
+          Maintainer: tai maintainers <noreply@example.com>
+          Description: tai Linux troubleshooting assistant
+          EOF
+
+          dpkg-deb --build "${deb_dir}" "${out_dir}/${pkg_name}_${deb_version}_${arch}.deb"
+
       - name: Upload binary artifact
         uses: actions/upload-artifact@v3
         with:
@@ -107,3 +138,11 @@ jobs:
           path: dist/tai
           if-no-files-found: error
           retention-days: 90
+
+      - name: Upload deb artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: tai-deb-amd64-${{ steps.version.outputs.tag }}
+          path: dist/tai_${{ steps.version.outputs.deb_version }}_amd64.deb
+          if-no-files-found: error
+          retention-days: 90