[_]: ci/sync-upstream Action

.github/workflows/sync-upstream.yml

@@ -0,0 +1,77 @@
+name: Sync Upstream
+
+on:
+    workflow_dispatch:
+    schedule:
+        - cron: "0 0 1 * *"
+    pull_request:
+        branches: [main]
+
+jobs:
+    sync:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v4
+              with:
+                  token: ${{ secrets.WORKFLOW_TOKEN }}
+                  fetch-depth: 0
+
+            - name: Configure git identity
+              run: |
+                  git config user.email "github-actions[bot]@users.noreply.github.com"
+                  git config user.name "github-actions[bot]"
+
+            - name: Fetch upstream + origin/main (correctamente)
+              run: |
+                  git remote add upstream https://github.com/jitsi/jitsi-meet.git || true
+                  git fetch upstream --tags
+                  git fetch origin --tags
+
+            # COMPARACIÓN CORRECTA: usamos los refs remotos directamente
+            - name: Check if there are new commits in upstream
+              id: check_diff
+              run: |
+                  MAIN_SHA=$(git rev-parse origin/main)
+                  UPSTREAM_SHA=$(git rev-parse upstream/master)
+
+                  echo "origin/main  → $MAIN_SHA"
+                  echo "upstream/master → $UPSTREAM_SHA"
+
+                  if [ "$MAIN_SHA" = "$UPSTREAM_SHA" ]; then
+                    echo "already_synced=true" >> $GITHUB_OUTPUT
+                    echo "No hay cambios nuevos en upstream"
+                  else
+                    echo "already_synced=false" >> $GITHUB_OUTPUT
+                    echo "diff_exists=true" >> $GITHUB_OUTPUT
+                    echo "¡HAY CAMBIOS! (o conflictos) → se creará el PR"
+                  fi
+
+            - name: Create and push upstream-sync branch
+              if: steps.check_diff.outputs.diff_exists == 'true'
+              run: |
+                  git checkout -B upstream-sync upstream/master
+                  git push -f origin upstream-sync
+
+            - name: Create Pull Request (solo si hay cambios)
+              if: steps.check_diff.outputs.diff_exists == 'true'
+              env:
+                  GH_TOKEN: ${{ secrets.WORKFLOW_TOKEN }}
+              run: |
+                  gh pr create \
+                    --title "chore(sync): monthly sync with upstream jitsi/jitsi-meet" \
+                    --body "Automated monthly sync from upstream
+
+                    Upstream commit: $(git rev-parse --short upstream/master)
+                    Your main commit: $(git rev-parse --short origin/main)
+                    Date: $(date -u)
+
+                    This PR may contain **merge conflicts** that need manual resolution.
+                    Includes upstream workflows (token has workflow permission)." \
+                    --base main \
+                    --head upstream-sync
+
+            - name: Already up to date
+              if: steps.check_diff.outputs.already_synced == 'true'
+              run: |
+                  echo "Fork ya está completamente actualizado con upstream/master → nada que hacer"