Add collector sync workflow (#29)

Author: jaydeluca

.github/scripts/use-cla-approved-bot.sh

@@ -0,0 +1,5 @@
+#!/bin/bash -e
+
+# https://github.com/open-telemetry/community/blob/main/assets.md#otelbot
+git config user.name otelbot
+git config user.email [email protected]

.github/workflows/nightly-registry-update.yml

@@ -0,0 +1,106 @@
+name: Nightly Registry Update
+
+on:
+  schedule:
+    # Run daily at 2 AM UTC
+    - cron: '0 2 * * *'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  issues: write
+  pull-requests: write
+
+jobs:
+  synchronize-collector-inventory:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        with:
+          token: ${{ secrets.PAT_TOKEN || secrets.GITHUB_TOKEN }}
+
+      - name: Detect repository type (if on a fork we use different git config)
+        id: repo_check
+        run: |
+          if [ "${{ github.repository }}" == "open-telemetry/opentelemetry-ecosystem-explorer" ]; then
+            echo "is_primary=true" >> $GITHUB_OUTPUT
+          else
+            echo "is_primary=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Configure git (primary repository)
+        if: steps.repo_check.outputs.is_primary == 'true'
+        run: |
+          .github/scripts/use-cla-approved-bot.sh
+
+      - name: Configure git (fork)
+        if: steps.repo_check.outputs.is_primary == 'false'
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Cache repository clones
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
+        with:
+          path: tmp_repos
+          key: tmp-repos
+          restore-keys: |
+            tmp-repos-
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@61cb8a9741eeb8a550a1b8544337180c0fc8476b # v7.2.0
+        with:
+          enable-cache: true
+
+      - name: Set up Python
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+
+      - name: Install dependencies
+        run: uv sync
+
+      - name: Run collector-watcher
+        run: |
+          uv run collector-watcher
+
+      - name: Check for inventory changes
+        id: check_changes
+        run: |
+          git add -N ecosystem-registry/ 2>/dev/null || true
+          if git diff --quiet ecosystem-registry/ && [ -z "$(git ls-files --others --exclude-standard ecosystem-registry/)" ]; then
+            echo "has_changes=false" >> $GITHUB_OUTPUT
+          else
+            echo "has_changes=true" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Commit and push changes
+        if: steps.check_changes.outputs.has_changes == 'true'
+        env:
+          GH_TOKEN: ${{ secrets.PAT_TOKEN || secrets.GITHUB_TOKEN }}
+        run: |
+          BRANCH="automated-inventory-update"
+
+          git add ecosystem-registry/
+
+          git commit -m "Update component inventory"
+
+          # Push to branch (force push to update existing branch)
+          git push -f origin HEAD:${BRANCH}
+
+          PR_TITLE="[automated] Update registry inventory"
+          PR_BODY="$(cat <<'EOF'
+          Automated nightly scan detected changes in registry data.
+          ---
+
+          _This PR is automatically generated by the Nightly Registry Update workflow._
+          EOF
+          )"
+
+          # Check if an open PR exists for this branch
+          if gh pr list --head ${BRANCH} --state open --json number --jq '.[0].number' | grep -q .; then
+            echo "Open PR already exists, updating..."
+            gh pr edit ${BRANCH} --title "${PR_TITLE}" --body "${PR_BODY}"
+          else
+            echo "Creating new PR..."
+            gh pr create --title "${PR_TITLE}" --body "${PR_BODY}" --base main --head ${BRANCH}
+          fi