sync-webperf-skills.yml

name: Sync WebPerf Skills

on:
  schedule:
    - cron: '0 9 * * 1' # Every Monday at 9:00 UTC
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  sync:
    name: Sync skills from webperf-snippets
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Get latest release from webperf-snippets
        id: upstream
        run: |
          RELEASE=$(curl -s "https://api.github.com/repos/nucliweb/webperf-snippets/releases/latest")
          TAG=$(echo "$RELEASE" | jq -r '.tag_name')
          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
          echo "Latest webperf-snippets release: $TAG"

      - name: Check current synced version
        id: current
        run: |
          VERSION_FILE=".github/webperf-snippets-version"
          if [ -f "$VERSION_FILE" ]; then
            CURRENT=$(cat "$VERSION_FILE")
          else
            CURRENT="none"
          fi
          echo "version=$CURRENT" >> "$GITHUB_OUTPUT"
          echo "Current synced version: $CURRENT"

      - name: Download and extract skills
        if: steps.upstream.outputs.tag != steps.current.outputs.version
        env:
          TAG: ${{ steps.upstream.outputs.tag }}
        run: |
          curl -fsSL "https://github.com/nucliweb/webperf-snippets/archive/refs/tags/${TAG}.tar.gz" \
            -o /tmp/webperf-snippets.tar.gz
          mkdir -p /tmp/webperf-snippets
          tar xz -f /tmp/webperf-snippets.tar.gz -C /tmp/webperf-snippets --strip-components=1
          cp -r /tmp/webperf-snippets/skills/. skills/
          # Adapt tool references from standalone format to MCP server internal format
          find skills/ -name "*.md" -exec sed -i 's/`mcp__chrome-devtools__/`/g' {} +
          echo "$TAG" > .github/webperf-snippets-version

      - name: Check for changes
        if: steps.upstream.outputs.tag != steps.current.outputs.version
        id: changes
        run: |
          git add skills/ .github/webperf-snippets-version
          if git diff --staged --quiet; then
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
            echo "No changes detected, skills are already up to date."
          else
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
            git diff --staged --stat
          fi

      - name: Check for existing PR
        if: steps.changes.outputs.has_changes == 'true'
        id: existing_pr
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.upstream.outputs.tag }}
        run: |
          BRANCH="sync/webperf-snippets-${TAG}"
          PR=$(gh pr list --head "$BRANCH" --json number --jq '.[0].number // empty')
          echo "branch=$BRANCH" >> "$GITHUB_OUTPUT"
          echo "number=$PR" >> "$GITHUB_OUTPUT"

      - name: Create pull request
        if: steps.changes.outputs.has_changes == 'true' && steps.existing_pr.outputs.number == ''
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.upstream.outputs.tag }}
          BRANCH: ${{ steps.existing_pr.outputs.branch }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git checkout -b "$BRANCH"
          git commit -m "sync: update webperf skills from webperf-snippets ${TAG}"
          git push origin "$BRANCH"

          SKILLS=$(find skills/ -maxdepth 1 -mindepth 1 -name "webperf*" -type d \
            | sort | xargs -I{} basename {} | sed 's/^/- `/' | sed 's/$/`/')
          STAT=$(git diff HEAD~1 --stat | tail -1)

          {
            echo "Automated sync of WebPerf skills from [nucliweb/webperf-snippets](https://github.com/nucliweb/webperf-snippets) release [${TAG}](https://github.com/nucliweb/webperf-snippets/releases/tag/${TAG})."
            echo ""
            echo "## Skills included"
            echo ""
            echo "${SKILLS}"
            echo ""
            echo "## Adaptations"
            echo ""
            echo "Tool references are automatically adapted from the standalone skill format (\`mcp__chrome-devtools__tool_name\`) to the MCP server internal format (\`tool_name\`) during sync."
            echo ""
            echo "## Stats"
            echo ""
            echo "${STAT}"
          } > /tmp/pr-body.md

          gh pr create \
            --title "sync: webperf skills from webperf-snippets ${TAG}" \
            --body-file /tmp/pr-body.md

      - name: Skip — PR already exists
        if: steps.changes.outputs.has_changes == 'true' && steps.existing_pr.outputs.number != ''
        env:
          TAG: ${{ steps.upstream.outputs.tag }}
        run: |
          echo "PR already exists for ${TAG} (#${{ steps.existing_pr.outputs.number }}), skipping."

      - name: Skip — already up to date
        if: steps.upstream.outputs.tag == steps.current.outputs.version
        env:
          TAG: ${{ steps.upstream.outputs.tag }}
        run: echo "Already synced to ${TAG}, nothing to do."