1name: check-pr
 2on:
 3  pull_request_target:
 4    types: [opened, synchronize]
 5jobs:
 6  aictl-review:
 7    runs-on: ubuntu-latest
 8    permissions:
 9      pull-requests: write
10    steps:
11      - name: Get number of commits for fetch depth
12        run: echo "fetch_depth=$(( commits + 1 ))" >> $GITHUB_ENV
13        env:
14          commits: ${{ github.event.pull_request.commits }}
15      - name: Git checkout until fetch-depth
16        uses: actions/checkout@v4
17        with:
18          fetch-depth: ${{ env.fetch_depth }}
19          # need to specify ref to fetch PR head, otherwise you get main branch with no HEAD
20          ref: ${{ github.event.pull_request.head.sha }}
21      - name: Fetch base branch as origin
22        run: git fetch origin ${{ github.event.pull_request.base.ref }}
23      - name: Get the diff between PR and origin branch and get commit message too
24        id: git-diff
25        run: |
26          # If fetch-depth is not specified in checkout, HEAD cannot be found
27          # Make sure to filter out deleted file in `git diff` since you cannot review deleted files
28          diff_files=$(git diff --name-only --diff-filter=ACMR origin/${{ github.event.pull_request.base.ref }}..HEAD | tr '\n' ',' | sed 's/,$/\n/')
29          echo "diff_files: ${diff_files}"
30          echo "diff-files=${diff_files}" >> "$GITHUB_OUTPUT"
31
32          # In PR, you cannot get `github.event.head_commit.message` so you need to get commit message via git log
33          commit_msg=$(git log --format=%B -n 1 ${{ github.event.pull_request.head.sha }})
34          echo "commit_msg: ${commit_msg}"
35          echo "commit-msg=${commit_msg}" >> "$GITHUB_OUTPUT" 
36      - name: Run aictl for code review
37        id: aictl-review
38        uses: go-zen-chu/aictl@main
39        if: ${{ steps.git-diff.outputs.diff-files != '' && !contains(steps.git-diff.outputs.commit-msg, '[skip ai]') }}
40        with:
41          query: |
42            Markdown ファイルはプログラミングなどの技術記事、ライフハック記事や書評などを記載しています。
43            より読みやすく、多くの人に読んでもらえるようにする観点でレビューをお願いします。
44
45            その他ファイルは、このブログシステム自体のソースコードになります。
46            より良いブログシステムを構築できるように、コードの品質や保守性の観点でレビューをお願いします。
47          language: 日本語
48          text-files: ${{ steps.git-diff.outputs.diff-files }}
49        env:
50          AICTL_OPENAI_API_KEY: ${{ secrets.AICTL_OPENAI_API_KEY }}
51      - name: Post aictl review result to PR comment
52        if: steps.aictl-review.outcome != 'skipped'
53        run: |
54          # make sure to checkout to pr branch and resolve detached HEAD state
55          git checkout ${{ github.ref_name }}
56          # TIPS: surrounding with single quote, you can ignore `code` string in outputs
57          cat <<'AICTL_REVIEW_EOF' > response.md
58          ${{ steps.aictl-review.outputs.response }}
59          AICTL_REVIEW_EOF
60          gh pr comment --body-file response.md "${URL}"
61        env:
62          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
63          URL: ${{ github.event.pull_request.html_url }}