add port-to-omp.mjs + Gitea Actions workflow (regenerate omp port on push)

.gitea/workflows/port-to-omp.yml

@@ -0,0 +1,64 @@
+name: port-to-omp
+
+# Regenerate the omp port of deepi-research from this repo and push it to
+# Mike/omp-deepi-research.
+#
+# Prerequisites on git.freno.me:
+#   - an access token with write:repository scope, stored as the repo/org
+#     secret GITEA_TOKEN (the workflow authenticates as `oauth2:<token>` over
+#     https)
+#   - a registered Actions runner (act_runner) for this repo
+#
+# Safe by construction: the port commit lands in the omp repo, never here, so
+# this workflow cannot re-trigger itself.
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  port:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Port to omp
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          OMP_REPO: omp-deepi-research
+        run: |
+          set -euo pipefail
+          URL="https://oauth2:${GITEA_TOKEN}@git.freno.me/Mike/${OMP_REPO}.git"
+
+          if git ls-remote "$URL" HEAD >/dev/null 2>&1; then
+            git clone --depth 1 "$URL" omp-port
+            git -C omp-port config user.name  "omp-port"
+            git -C omp-port config user.email "omp-port@freno.me"
+          else
+            git init -b main omp-port
+            git -C omp-port remote add origin "$URL"
+            git -C omp-port config user.name  "omp-port"
+            git -C omp-port config user.email "omp-port@freno.me"
+          fi
+
+          # Regenerate the port directly into the omp checkout. The script
+          # preserves .git, asserts every patch rule, and runs `bun install`
+          # (refreshing bun.lock + node_modules).
+          bun "$GITHUB_WORKSPACE/port-to-omp.mjs" --out "$PWD/omp-port"
+
+          cd omp-port
+          # The port must compile against the pinned @oh-my-pi SDK before it
+          # ships to users.
+          bun run typecheck
+
+          if git diff --quiet HEAD; then
+            echo "port unchanged; nothing to push"
+            exit 0
+          fi
+          git add -A
+          git commit -m "port: sync from ${GITHUB_REPOSITORY}@${GITHUB_SHA::8}"
+          git push origin HEAD:main