Attach release ZIP from runner

.gitea/workflows/build.yml

@@ -56,3 +56,24 @@ jobs:
         with:
           name: MrTrust-0.1.2
           path: dist/MrTrust-0.1.2.zip
+
+      - name: Attach ZIP to Gitea release
+        if: github.ref == 'refs/heads/main'
+        shell: bash
+        env:
+          GITEA_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          version="0.1.2"
+          api="http://gitea:3000/api/v1/repos/${GITHUB_REPOSITORY}"
+          release_json="$(curl -fsS -H "Authorization: token ${GITEA_TOKEN}" "${api}/releases/tags/v${version}")"
+          release_id="$(printf '%s' "$release_json" | sed -n 's/.*"id":\([0-9][0-9]*\).*/\1/p' | head -n 1)"
+          if [ -z "$release_id" ]; then
+            echo "Could not resolve release id for v${version}" >&2
+            exit 1
+          fi
+          curl -fsS \
+            -X POST \
+            -H "Authorization: token ${GITEA_TOKEN}" \
+            -F "attachment=@dist/MrTrust-${version}.zip" \
+            "${api}/releases/${release_id}/assets?name=MrTrust-${version}.zip"