CrowdmapTemplate/.github/workflows/json-diff.yml at development · IRE-Mudlet-Mapping/CrowdmapTemplate · GitHub

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name: JSON diff

on: pull_request_target

permissions:
  contents: read
  pull-requests: write
  issues: write

jobs:
  json-diff:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout base version
        uses: actions/checkout@v7
        with:
          fetch-depth: 0
          path: old
      - name: Check whether a map is available
        id: map-available
        run: |
          if [ -s old/Map/map ]; then
            echo "available=true" >> "$GITHUB_OUTPUT"
          else
            echo "available=false" >> "$GITHUB_OUTPUT"
            echo "No map is available in the repository template; skipping the JSON diff."
          fi
      - name: Checkout base again for PR overlay
        if: steps.map-available.outputs.available == 'true'
        uses: actions/checkout@v7
        with:
          fetch-depth: 0
          path: current
      - name: Fetch PR changes into current
        if: steps.map-available.outputs.available == 'true'
        working-directory: current
        run: |
          git fetch origin pull/${{ github.event.pull_request.number }}/head:pr-head
          git checkout pr-head

      - uses: actions/setup-node@v7.0.0
        if: steps.map-available.outputs.available == 'true'
      - name: Install dependencies
        if: steps.map-available.outputs.available == 'true'
        run: |
          sudo apt-get install jq diffutils

      - name: Generate json map files for diffing
        if: steps.map-available.outputs.available == 'true'
        run: |
          pushd old/
          yarn install --frozen-lockfile
          node ./map-utilities/generate-map.mjs
          node ./map-utilities/generate-map.mjs --base-dir ../current
          popd
      - name: get JSON diff
        if: steps.map-available.outputs.available == 'true'
        run: |
          echo '## Textual map diff' > output.txt
          echo '<details>' >> output.txt
          echo '<summary>Open to see the diff for commit ${{ github.event.pull_request.head.sha }}</summary>' >> output.txt
          echo '' >> output.txt
          echo '```diff' >> output.txt
          ./old/map-utilities/create-diff.sh >> output.txt
          echo '```' >> output.txt
          echo '' >> output.txt
          echo '</details>' >> output.txt

      - name: Find Comment
        if: steps.map-available.outputs.available == 'true'
        uses: peter-evans/find-comment@v4
        id: fc
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-author: 'github-actions[bot]'
          body-includes: Textual map diff
      - name: Create or update comment
        if: steps.map-available.outputs.available == 'true'
        uses: actions/github-script@v9
        with:
          script: |
            const fs = require('fs');
            const commentBody = fs.readFileSync('output.txt', 'utf8');
            const commentId = "${{ steps.fc.outputs.comment-id }}";
            if(commentId){
              github.rest.issues.updateComment({
                comment_id: commentId,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: commentBody
              })
            } else {
              github.rest.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: commentBody
            })
            }