ci: use Gitea API for releases (softprops/action-gh-release targets GitHub, fails on Gitea with 405)

.gitea/workflows/build.yml

@@ -6,6 +6,11 @@ on:
     tags: ['v*']
   pull_request:
 
+# Ensure the job token can create releases and upload assets.
+permissions:
+  contents: write
+  releases: write
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -42,11 +47,27 @@ jobs:
 
       - name: Publish release on version tag
         if: startsWith(github.ref, 'refs/tags/v')
-        # softprops/action-gh-release works on Gitea Actions: it uses the
-        # automatically-provided GITHUB_TOKEN to create a Release for the tag
-        # and attaches the supplied files.
-        uses: softprops/action-gh-release@v2
-        with:
-          files: dist/*.zip
-          name: ${{ github.ref_name }}
-          generate_release_notes: true
+        # Gitea-native release: softprops/action-gh-release targets GitHub's API
+        # and fails on Gitea (405). Instead we call the Gitea API directly with
+        # the runner-provided GITHUB_TOKEN and GITHUB_API_URL.
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          REPO="${{ github.repository }}"
+          TAG="${{ github.ref_name }}"
+          API="${GITHUB_API_URL:-https://git.ranio.xyz/api/v1}"
+          # Create the release for the tag
+          RELEASE_JSON=$(curl -sS -X POST \
+            -H "Authorization: token ${GITHUB_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "{\"tag_name\":\"${TAG}\",\"name\":\"${TAG}\",\"body\":\"ISMIS Helper ${TAG}\"}" \
+            "${API}/repos/${REPO}/releases")
+          RELEASE_ID=$(echo "${RELEASE_JSON}" | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")
+          # Attach both zips as release assets
+          for f in dist/*.zip; do
+            curl -sS -X POST \
+              -H "Authorization: token ${GITHUB_TOKEN}" \
+              -F "attachment=@${f}" \
+              "${API}/repos/${REPO}/releases/${RELEASE_ID}/assets?name=$(basename "${f}")"
+          done