Add a full Gitea Actions release workflow

.gitea/workflows/release.yml

@@ -0,0 +1,75 @@
+name: "Release"
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  release:
+    name: "Release"
+    runs-on: debian-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Determine the version of the release
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          echo "Releasing version: $VERSION"
+          echo "VERSION=$VERSION" >> $GITHUB_ENV
+
+      - name: Get the release notes from the changelog
+        run: |
+          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
+          RELEASE_NOTES=$(sed -n -e "/^## \[$VERSION\]/,/^## \[/{//"'!'"p;}" CHANGELOG.md | sed -e '1d;$d')
+          echo "Release notes:"
+          echo
+          echo "$RELEASE_NOTES"
+          echo "RELEASE_NOTES<<$EOF" >> "$GITHUB_ENV"
+          echo "$RELEASE_NOTES" >> "$GITHUB_ENV"
+          echo "$EOF" >> "$GITHUB_ENV"
+
+      - name: Install Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '>=1.20.1'
+
+      - name: Release to Gitea
+        uses: actions/release-action@main
+        with:
+          # This is available by default.
+          api_key: '${{ secrets.RELEASE_TOKEN }}'
+          files: FIXME
+          title: 'Release ${{ env.VERSION }}'
+          body: '${{ env.RELEASE_NOTES }}'
+
+  release-crate:
+    name: "Release crate"
+    runs-on: debian-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Install Rust stable toolchain
+        uses: https://github.com/actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+
+      - name: Register the Gitea crate registry with Cargo
+        run: echo -e '[registries.luon]\nindex = "https://git.luon.net/paul/_cargo-index.git"' >> /root/.cargo/config.toml
+
+      - name: Run cargo publish
+        uses: https://github.com/actions-rs/cargo@v1
+        env:
+          # This needs to be provided for the repository; no login necessary as a result.
+          CARGO_REGISTRIES_LUON_TOKEN: '${{ secrets.CARGO_TOKEN }}'
+        with:
+          command: publish
+          args: --registry luon