fix: publish raw OTA files to rolling release with backup artifacts

.gitea/workflows/ota-build.yml

@@ -0,0 +1,140 @@
+name: OTA build
+
+on:
+  push:
+    branches:
+      - '**'
+  workflow_dispatch:
+
+jobs:
+  build-ota:
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install PlatformIO
+        run: |
+          python -m pip install --upgrade pip
+          pip install platformio
+
+      - name: Build OTA firmware binaries
+        run: pio run
+
+      - name: Prepare direct OTA files
+        run: |
+          set -eu
+          rm -rf dist/ota
+          project_name="${GITHUB_REPOSITORY#*/}"
+          project_name="${project_name#PlatformIO_}"
+          timestamp="$(date -u +%Y-%m-%dT%H-%M-%SZ)"
+          mkdir -p dist/ota
+          found=0
+          for fw in .pio/build/*/firmware.bin .pio/build/*/firmware.hex; do
+            [ -f "$fw" ] || continue
+            env_name="$(basename "$(dirname "$fw")")"
+            ext="${fw##*.}"
+            cp "$fw" "dist/ota/${project_name}_${env_name}_${timestamp}.${ext}"
+            found=1
+          done
+          if [ "$found" -eq 0 ]; then
+            echo 'No firmware.bin or firmware.hex artifacts were produced.' >&2
+            exit 1
+          fi
+          find dist/ota -maxdepth 1 -type f | sort
+
+      - name: Upload backup OTA artifact ZIP
+        uses: actions/upload-artifact@v3
+        with:
+          name: ota-files
+          path: dist/ota/*
+          if-no-files-found: error
+
+      - name: Publish raw OTA files to rolling release
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          python - <<'PY'
+          import json
+          import mimetypes
+          import os
+          import sys
+          from pathlib import Path
+          from urllib.request import Request, urlopen
+          from urllib.error import HTTPError
+
+          server = os.environ['GITHUB_SERVER_URL']
+          repo = os.environ['GITHUB_REPOSITORY']
+          token = os.environ.get('GITEA_TOKEN')
+          if not token:
+              print('GITEA_TOKEN missing', file=sys.stderr)
+              sys.exit(1)
+          api = f"{server}/api/v1/repos/{repo}"
+          headers = {
+              'Authorization': f'token {token}',
+              'Accept': 'application/json',
+              'Content-Type': 'application/json',
+              'User-Agent': 'Hermes-Agent'
+          }
+          tag = 'ota-builds'
+          release_name = 'OTA Builds'
+          body = 'Rolling OTA files from the latest successful push build.'
+
+          def req(url, method='GET', data=None, extra_headers=None):
+              h = dict(headers)
+              if extra_headers:
+                  h.update(extra_headers)
+              payload = None if data is None else json.dumps(data).encode()
+              r = Request(url, data=payload, headers=h, method=method)
+              with urlopen(r, timeout=120) as resp:
+                  body = resp.read()
+              if not body:
+                  return None
+              text = body.decode()
+              try:
+                  return json.loads(text)
+              except json.JSONDecodeError:
+                  return text
+
+          try:
+              release = req(f"{api}/releases/tags/{tag}")
+          except HTTPError as e:
+              if e.code != 404:
+                  raise
+              release = req(f"{api}/releases", method='POST', data={
+                  'tag_name': tag,
+                  'target': os.environ.get('GITHUB_SHA', ''),
+                  'name': release_name,
+                  'body': body,
+                  'draft': False,
+                  'prerelease': True,
+              })
+
+          release_id = release['id']
+          existing = req(f"{api}/releases/{release_id}/assets") or []
+          for asset in existing:
+              rid = asset['id']
+              req(f"{api}/releases/{release_id}/assets/{rid}", method='DELETE')
+
+          for path in sorted(Path('dist/ota').glob('*')):
+              if not path.is_file():
+                  continue
+              mime = mimetypes.guess_type(path.name)[0] or 'application/octet-stream'
+              upload_headers = {
+                  'Authorization': f'token {token}',
+                  'Content-Type': mime,
+                  'Accept': 'application/json',
+                  'User-Agent': 'Hermes-Agent'
+              }
+              url = f"{api}/releases/{release_id}/assets?name={path.name}"
+              data = path.read_bytes()
+              r = Request(url, data=data, headers=upload_headers, method='POST')
+              with urlopen(r, timeout=240) as resp:
+                  print(resp.read().decode())
+          PY