pr-comment-generate-plots.yml

name: PR comment - Generate plots

on:
  pull_request:
    paths:
       - '**/*.csv.gz'

jobs:
  generate-plots:
    name: Generate plots
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0
      - uses: astral-sh/setup-uv@v7
        with:
          working-directory: './utils/visualize'
      - uses: actions/github-script@v9
        name: List changed files from the PR
        id: list-files
        with:
          script: |
            const { execSync } = require('child_process')
            const { commits } = context.payload.pull_request
            const rawFiles = execSync(`git diff --name-only HEAD HEAD~${commits} | grep -E '(brightness|color_temp|hs|effect)\\.csv\\.gz$'`).toString()
            const files = rawFiles.split('\n').filter(Boolean)
            core.setOutput('changedFiles', "\"" + files.join("\" \"") + "\"")
      - name: Run visualization tool
        run: |
          cd ./utils/visualize
          for file in ${{ steps.list-files.outputs.changedFiles }}; do
            echo "Generating plot for - ${file}."
            if [ -f "${{ github.workspace }}/${file}" ]; then
              uv run python plot.py "${{ github.workspace }}/${file}" --output=auto
            fi
          done
      - name: Save PR number
        env:
          PR_NUMBER: ${{ github.event.number }}
        run: |
          echo $PR_NUMBER > pr_number.txt
      - name: Upload Artifact
        uses: actions/upload-artifact@v7
        with:
          name: plots
          path: |
            ./pr_number.txt
            ./utils/visualize/*.png